lavc: Consistently prefix input buffer defines

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

150 files changed, 273 insertions, 264 deletions

diff --git a/avconv.c b/avconv.c
index c1168302bc..deaa40b381 100644
--- a/avconv.c
+++ b/avconv.c
@@ -1732,7 +1732,7 @@ static int transcode_init(void)
 
             av_assert0(ist && !ost->filter);
 
-            extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
+            extra_size = (uint64_t)dec_ctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE;
 
             if (extra_size > INT_MAX) {
                 return AVERROR(EINVAL);
diff --git a/doc/examples/avcodec.c b/doc/examples/avcodec.c
index 485911a67f..f801bed2d0 100644
--- a/doc/examples/avcodec.c
+++ b/doc/examples/avcodec.c
@@ -226,7 +226,7 @@ static void audio_decode_example(const char *outfilename, const char *filename)
     AVCodecContext *c= NULL;
     int len;
     FILE *f, *outfile;
-    uint8_t inbuf[AUDIO_INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
+    uint8_t inbuf[AUDIO_INBUF_SIZE + AV_INPUT_BUFFER_PADDING_SIZE];
     AVPacket avpkt;
     AVFrame *decoded_frame = NULL;
 
@@ -459,14 +459,14 @@ static void video_decode_example(const char *outfilename, const char *filename)
     int frame, got_picture, len;
     FILE *f;
     AVFrame *picture;
-    uint8_t inbuf[INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
+    uint8_t inbuf[INBUF_SIZE + AV_INPUT_BUFFER_PADDING_SIZE];
     char buf[1024];
     AVPacket avpkt;
 
     av_init_packet(&avpkt);
 
     /* set end of buffer to 0 (this ensures that no overreading happens for damaged mpeg streams) */
-    memset(inbuf + INBUF_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(inbuf + INBUF_SIZE, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     printf("Video decoding\n");
 
diff --git a/doc/examples/qsvdec.c b/doc/examples/qsvdec.c
index 6dbb21031d..04e5b5f85d 100644
--- a/doc/examples/qsvdec.c
+++ b/doc/examples/qsvdec.c
@@ -405,7 +405,7 @@ int main(int argc, char **argv)
     decoder_ctx->codec_id = AV_CODEC_ID_H264;
     if (video_st->codec->extradata_size) {
         decoder_ctx->extradata = av_mallocz(video_st->codec->extradata_size +
-                                            FF_INPUT_BUFFER_PADDING_SIZE);
+                                            AV_INPUT_BUFFER_PADDING_SIZE);
         if (!decoder_ctx->extradata) {
             ret = AVERROR(ENOMEM);
             goto finish;
diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c
index 4c0b4e3f98..b2d4db26b0 100644
--- a/libavcodec/4xm.c
+++ b/libavcodec/4xm.c
@@ -446,13 +446,13 @@ static int decode_p_frame(FourXContext *f, const uint8_t *buf, int length)
     }
 
     av_fast_malloc(&f->bitstream_buffer, &f->bitstream_buffer_size,
-                   bitstream_size + FF_INPUT_BUFFER_PADDING_SIZE);
+                   bitstream_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!f->bitstream_buffer)
         return AVERROR(ENOMEM);
     f->bbdsp.bswap_buf(f->bitstream_buffer, (const uint32_t *) (buf + extra),
                        bitstream_size / 4);
     memset((uint8_t*)f->bitstream_buffer + bitstream_size,
-           0, FF_INPUT_BUFFER_PADDING_SIZE);
+           0, AV_INPUT_BUFFER_PADDING_SIZE);
     init_get_bits(&f->gb, f->bitstream_buffer, 8 * bitstream_size);
 
     wordstream_offset = extra + bitstream_size;
@@ -769,13 +769,13 @@ static int decode_i_frame(FourXContext *f, const uint8_t *buf, int length)
     prestream_size = length + buf - prestream;
 
     av_fast_malloc(&f->bitstream_buffer, &f->bitstream_buffer_size,
-                   prestream_size + FF_INPUT_BUFFER_PADDING_SIZE);
+                   prestream_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!f->bitstream_buffer)
         return AVERROR(ENOMEM);
     f->bbdsp.bswap_buf(f->bitstream_buffer, (const uint32_t *) prestream,
                        prestream_size / 4);
     memset((uint8_t*)f->bitstream_buffer + prestream_size,
-           0, FF_INPUT_BUFFER_PADDING_SIZE);
+           0, AV_INPUT_BUFFER_PADDING_SIZE);
     init_get_bits(&f->pre_gb, f->bitstream_buffer, 8 * prestream_size);
 
     f->last_dc = 0 * 128 * 8 * 8;
@@ -849,7 +849,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
         cfrm = &f->cfrm[i];
 
         cfrm->data = av_fast_realloc(cfrm->data, &cfrm->allocated_size,
-                                     cfrm->size + data_size + FF_INPUT_BUFFER_PADDING_SIZE);
+                                     cfrm->size + data_size + AV_INPUT_BUFFER_PADDING_SIZE);
         // explicit check needed as memcpy below might not catch a NULL
         if (!cfrm->data) {
             av_log(f->avctx, AV_LOG_ERROR, "realloc failure");
diff --git a/libavcodec/a64multienc.c b/libavcodec/a64multienc.c
index c5e50029c6..5d8d162348 100644
--- a/libavcodec/a64multienc.c
+++ b/libavcodec/a64multienc.c
@@ -209,7 +209,7 @@ static av_cold int a64multi_encode_init(AVCodecContext *avctx)
     }
 
     /* set up extradata */
-    if (!(avctx->extradata = av_mallocz(8 * 4 + FF_INPUT_BUFFER_PADDING_SIZE))) {
+    if (!(avctx->extradata = av_mallocz(8 * 4 + AV_INPUT_BUFFER_PADDING_SIZE))) {
         av_log(avctx, AV_LOG_ERROR, "Failed to allocate memory for extradata.\n");
         return AVERROR(ENOMEM);
     }
diff --git a/libavcodec/aac_adtstoasc_bsf.c b/libavcodec/aac_adtstoasc_bsf.c
index bedaa4961b..d3cbeae9d0 100644
--- a/libavcodec/aac_adtstoasc_bsf.c
+++ b/libavcodec/aac_adtstoasc_bsf.c
@@ -88,7 +88,7 @@ static int aac_adtstoasc_filter(AVBitStreamFilterContext *bsfc,
             buf      += get_bits_count(&gb)/8;
         }
         avctx->extradata_size = 2 + pce_size;
-        avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+        avctx->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!avctx->extradata)
             return AVERROR(ENOMEM);
 
diff --git a/libavcodec/aac_parser.c b/libavcodec/aac_parser.c
index acb05d4de1..eae120a249 100644
--- a/libavcodec/aac_parser.c
+++ b/libavcodec/aac_parser.c
@@ -34,7 +34,7 @@ static int aac_sync(uint64_t state, AACAC3ParseContext *hdr_info,
     int size;
     union {
         uint64_t u64;
-        uint8_t  u8[8 + FF_INPUT_BUFFER_PADDING_SIZE];
+        uint8_t  u8[8 + AV_INPUT_BUFFER_PADDING_SIZE];
     } tmp;
 
     tmp.u64 = av_be2ne64(state);
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index 2528033f04..d7e0aa57f0 100644
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -2969,7 +2969,7 @@ static int aac_decode_frame(AVCodecContext *avctx, void *data,
     if (new_extradata) {
         av_free(avctx->extradata);
         avctx->extradata = av_mallocz(new_extradata_size +
-                                      FF_INPUT_BUFFER_PADDING_SIZE);
+                                      AV_INPUT_BUFFER_PADDING_SIZE);
         if (!avctx->extradata)
             return AVERROR(ENOMEM);
         avctx->extradata_size = new_extradata_size;
@@ -3089,14 +3089,14 @@ static int latm_decode_audio_specific_config(struct LATMContext *latmctx,
 
         if (avctx->extradata_size < esize) {
             av_free(avctx->extradata);
-            avctx->extradata = av_malloc(esize + FF_INPUT_BUFFER_PADDING_SIZE);
+            avctx->extradata = av_malloc(esize + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!avctx->extradata)
                 return AVERROR(ENOMEM);
         }
 
         avctx->extradata_size = esize;
         memcpy(avctx->extradata, gb->buffer + (config_start_bit/8), esize);
-        memset(avctx->extradata+esize, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+        memset(avctx->extradata+esize, 0, AV_INPUT_BUFFER_PADDING_SIZE);
     }
     skip_bits_long(gb, bits_consumed);
 
diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
index 815fb848e0..d2df65bb69 100644
--- a/libavcodec/aacenc.c
+++ b/libavcodec/aacenc.c
@@ -711,7 +711,7 @@ static av_cold int alloc_buffers(AVCodecContext *avctx, AACEncContext *s)
     int ch;
     FF_ALLOCZ_OR_GOTO(avctx, s->buffer.samples, 3 * 1024 * s->channels * sizeof(s->buffer.samples[0]), alloc_fail);
     FF_ALLOCZ_OR_GOTO(avctx, s->cpe, sizeof(ChannelElement) * s->chan_map[0], alloc_fail);
-    FF_ALLOCZ_OR_GOTO(avctx, avctx->extradata, 5 + FF_INPUT_BUFFER_PADDING_SIZE, alloc_fail);
+    FF_ALLOCZ_OR_GOTO(avctx, avctx->extradata, 5 + AV_INPUT_BUFFER_PADDING_SIZE, alloc_fail);
 
     for(ch = 0; ch < s->channels; ch++)
         s->planar_samples[ch] = s->buffer.samples + 3 * 1024 * ch;
diff --git a/libavcodec/ac3_parser.c b/libavcodec/ac3_parser.c
index 69d88c1a76..970484810b 100644
--- a/libavcodec/ac3_parser.c
+++ b/libavcodec/ac3_parser.c
@@ -150,7 +150,7 @@ static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,
     int err;
     union {
         uint64_t u64;
-        uint8_t  u8[8 + FF_INPUT_BUFFER_PADDING_SIZE];
+        uint8_t  u8[8 + AV_INPUT_BUFFER_PADDING_SIZE];
     } tmp = { av_be2ne64(state) };
     AC3HeaderInfo hdr;
     GetBitContext gbc;
diff --git a/libavcodec/ac3dec.h b/libavcodec/ac3dec.h
index babd0a7d70..e4d443c9a8 100644
--- a/libavcodec/ac3dec.h
+++ b/libavcodec/ac3dec.h
@@ -217,7 +217,7 @@ typedef struct AC3DecodeContext {
     DECLARE_ALIGNED(32, float, window)[AC3_BLOCK_SIZE];                              ///< window coefficients
     DECLARE_ALIGNED(32, float, tmp_output)[AC3_BLOCK_SIZE];                          ///< temporary storage for output before windowing
     DECLARE_ALIGNED(32, float, output)[AC3_MAX_CHANNELS][AC3_BLOCK_SIZE];            ///< output after imdct transform and windowing
-    DECLARE_ALIGNED(32, uint8_t, input_buffer)[AC3_FRAME_BUFFER_SIZE + FF_INPUT_BUFFER_PADDING_SIZE]; ///< temp buffer to prevent overread
+    DECLARE_ALIGNED(32, uint8_t, input_buffer)[AC3_FRAME_BUFFER_SIZE + AV_INPUT_BUFFER_PADDING_SIZE]; ///< temp buffer to prevent overread
 ///@}
 } AC3DecodeContext;
 
diff --git a/libavcodec/adpcmenc.c b/libavcodec/adpcmenc.c
index 341dda475a..65e1f8e636 100644
--- a/libavcodec/adpcmenc.c
+++ b/libavcodec/adpcmenc.c
@@ -111,7 +111,7 @@ static av_cold int adpcm_encode_init(AVCodecContext *avctx)
         avctx->frame_size = (BLKSIZE - 7 * avctx->channels) * 2 /
                              avctx->channels + 2;
         avctx->block_align    = BLKSIZE;
-        if (!(avctx->extradata = av_malloc(32 + FF_INPUT_BUFFER_PADDING_SIZE)))
+        if (!(avctx->extradata = av_malloc(32 + AV_INPUT_BUFFER_PADDING_SIZE)))
             goto error;
         avctx->extradata_size = 32;
         extradata = avctx->extradata;
diff --git a/libavcodec/alacenc.c b/libavcodec/alacenc.c
index e6e0475fb8..8a94f81bb4 100644
--- a/libavcodec/alacenc.c
+++ b/libavcodec/alacenc.c
@@ -519,7 +519,7 @@ static av_cold int alac_encode_init(AVCodecContext *avctx)
                                                  avctx->channels,
                                                  avctx->bits_per_raw_sample);
 
-    avctx->extradata = av_mallocz(ALAC_EXTRADATA_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
+    avctx->extradata = av_mallocz(ALAC_EXTRADATA_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!avctx->extradata) {
         ret = AVERROR(ENOMEM);
         goto error;
diff --git a/libavcodec/asvenc.c b/libavcodec/asvenc.c
index a96521258e..ac7c317fa1 100644
--- a/libavcodec/asvenc.c
+++ b/libavcodec/asvenc.c
@@ -223,7 +223,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
 
     if (!pkt->data &&
         (ret = av_new_packet(pkt, a->mb_height * a->mb_width * MAX_MB_SIZE +
-                             FF_MIN_BUFFER_SIZE)) < 0) {
+                             AV_INPUT_BUFFER_MIN_SIZE)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
         return ret;
     }
diff --git a/libavcodec/atrac3.c b/libavcodec/atrac3.c
index c4201fb418..2e1fd3c133 100644
--- a/libavcodec/atrac3.c
+++ b/libavcodec/atrac3.c
@@ -879,7 +879,7 @@ static av_cold int atrac3_decode_init(AVCodecContext *avctx)
         return AVERROR(EINVAL);
 
     q->decoded_bytes_buffer = av_mallocz(FFALIGN(avctx->block_align, 4) +
-                                         FF_INPUT_BUFFER_PADDING_SIZE);
+                                         AV_INPUT_BUFFER_PADDING_SIZE);
     if (!q->decoded_bytes_buffer)
         return AVERROR(ENOMEM);
 
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 362a39752d..8e5a22883d 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -535,15 +535,24 @@ typedef struct AVCodecDescriptor {
  * Note: If the first 23 bits of the additional bytes are not 0, then damaged
  * MPEG bitstreams could cause overread and segfault.
  */
-#define FF_INPUT_BUFFER_PADDING_SIZE 8
+#define AV_INPUT_BUFFER_PADDING_SIZE 8
 
 /**
  * @ingroup lavc_encoding
  * minimum encoding buffer size
  * Used to avoid some checks during header writing.
  */
-#define FF_MIN_BUFFER_SIZE 16384
+#define AV_INPUT_BUFFER_MIN_SIZE 16384
 
+/**
+ * @deprecated use AV_INPUT_BUFFER_PADDING_SIZE instead
+ */
+#define FF_INPUT_BUFFER_PADDING_SIZE 8
+
+/**
+ * @deprecated use AV_INPUT_BUFFER_MIN_SIZE instead
+ */
+#define FF_MIN_BUFFER_SIZE 16384
 
 /**
  * @ingroup lavc_encoding
@@ -1362,7 +1371,7 @@ typedef struct AVCodecContext {
      * mjpeg: Huffman tables
      * rv10: additional flags
      * mpeg4: global headers (they can be in the bitstream or here)
-     * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
+     * The allocated memory should be AV_INPUT_BUFFER_PADDING_SIZE bytes larger
      * than extradata_size to avoid prolems if it is read with the bitstream reader.
      * The bytewise contents of extradata must not depend on the architecture or CPU endianness.
      * - encoding: Set/allocated/freed by libavcodec.
@@ -3627,7 +3636,7 @@ int av_grow_packet(AVPacket *pkt, int grow_by);
  *        function returns successfully, the data is owned by the underlying AVBuffer.
  *        The caller may not access the data through other means.
  * @param size size of data in bytes, without the padding. I.e. the full buffer
- *        size is assumed to be size + FF_INPUT_BUFFER_PADDING_SIZE.
+ *        size is assumed to be size + AV_INPUT_BUFFER_PADDING_SIZE.
  *
  * @return 0 on success, a negative AVERROR on error
  */
@@ -3843,7 +3852,7 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
  * returning samples. It is safe to flush even those decoders that are not
  * marked with AV_CODEC_CAP_DELAY, then no samples will be returned.
  *
- * @warning The input buffer, avpkt->data must be FF_INPUT_BUFFER_PADDING_SIZE
+ * @warning The input buffer, avpkt->data must be AV_INPUT_BUFFER_PADDING_SIZE
  *          larger than the actual read bytes because some optimized bitstream
  *          readers read 32 or 64 bits at once and could read over the end.
  *
@@ -3883,7 +3892,7 @@ int avcodec_decode_audio4(AVCodecContext *avctx, AVFrame *frame,
  * Some decoders may support multiple frames in a single AVPacket, such
  * decoders would then just decode the first frame.
  *
- * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than
+ * @warning The input buffer must be AV_INPUT_BUFFER_PADDING_SIZE larger than
  * the actual read bytes because some optimized bitstream readers read 32 or 64
  * bits at once and could read over the end.
  *
@@ -4612,7 +4621,7 @@ AVBitStreamFilter *av_bitstream_filter_next(const AVBitStreamFilter *f);
  * Allocate a buffer with padding, reusing the given one if large enough.
  *
  * Same behaviour av_fast_malloc but the buffer has additional
- * FF_INPUT_PADDING_SIZE at the end which will always memset to 0.
+ * AV_INPUT_PADDING_SIZE at the end which will always memset to 0.
  *
  */
 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size);
diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c
index 557258d839..bad379f2e8 100644
--- a/libavcodec/avpacket.c
+++ b/libavcodec/avpacket.c
@@ -66,14 +66,14 @@ FF_ENABLE_DEPRECATION_WARNINGS
 static int packet_alloc(AVBufferRef **buf, int size)
 {
     int ret;
-    if ((unsigned)size >= (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)
+    if ((unsigned)size >= (unsigned)size + AV_INPUT_BUFFER_PADDING_SIZE)
         return AVERROR(EINVAL);
 
-    ret = av_buffer_realloc(buf, size + FF_INPUT_BUFFER_PADDING_SIZE);
+    ret = av_buffer_realloc(buf, size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (ret < 0)
         return ret;
 
-    memset((*buf)->data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset((*buf)->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     return 0;
 }
@@ -103,20 +103,20 @@ void av_shrink_packet(AVPacket *pkt, int size)
     if (pkt->size <= size)
         return;
     pkt->size = size;
-    memset(pkt->data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(pkt->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 }
 
 int av_grow_packet(AVPacket *pkt, int grow_by)
 {
     int new_size;
-    av_assert0((unsigned)pkt->size <= INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE);
+    av_assert0((unsigned)pkt->size <= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
     if (!pkt->size)
         return av_new_packet(pkt, grow_by);
     if ((unsigned)grow_by >
-        INT_MAX - (pkt->size + FF_INPUT_BUFFER_PADDING_SIZE))
+        INT_MAX - (pkt->size + AV_INPUT_BUFFER_PADDING_SIZE))
         return -1;
 
-    new_size = pkt->size + grow_by + FF_INPUT_BUFFER_PADDING_SIZE;
+    new_size = pkt->size + grow_by + AV_INPUT_BUFFER_PADDING_SIZE;
     if (pkt->buf) {
         int ret = av_buffer_realloc(&pkt->buf, new_size);
         if (ret < 0)
@@ -134,17 +134,17 @@ FF_ENABLE_DEPRECATION_WARNINGS
     }
     pkt->data  = pkt->buf->data;
     pkt->size += grow_by;
-    memset(pkt->data + pkt->size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     return 0;
 }
 
 int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size)
 {
-    if (size >= INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE)
+    if (size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
         return AVERROR(EINVAL);
 
-    pkt->buf = av_buffer_create(data, size + FF_INPUT_BUFFER_PADDING_SIZE,
+    pkt->buf = av_buffer_create(data, size + AV_INPUT_BUFFER_PADDING_SIZE,
                                 av_buffer_default_free, NULL, 0);
     if (!pkt->buf)
         return AVERROR(ENOMEM);
@@ -172,9 +172,9 @@ do {                                         \
         void *data;                                                     \
         if (padding) {                                                  \
             if ((unsigned)(size) >                                      \
-                (unsigned)(size) + FF_INPUT_BUFFER_PADDING_SIZE)        \
+                (unsigned)(size) + AV_INPUT_BUFFER_PADDING_SIZE)        \
                 goto failed_alloc;                                      \
-            ALLOC(data, size + FF_INPUT_BUFFER_PADDING_SIZE);           \
+            ALLOC(data, size + AV_INPUT_BUFFER_PADDING_SIZE);           \
         } else {                                                        \
             ALLOC(data, size);                                          \
         }                                                               \
@@ -183,7 +183,7 @@ do {                                         \
         memcpy(data, src, size);                                        \
         if (padding)                                                    \
             memset((uint8_t *)data + size, 0,                           \
-                   FF_INPUT_BUFFER_PADDING_SIZE);                       \
+                   AV_INPUT_BUFFER_PADDING_SIZE);                       \
         dst = data;                                                     \
     } while (0)
 
@@ -266,7 +266,7 @@ uint8_t *av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
 
     if ((unsigned)elems + 1 > INT_MAX / sizeof(*pkt->side_data))
         return NULL;
-    if ((unsigned)size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE)
+    if ((unsigned)size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
         return NULL;
 
     pkt->side_data = av_realloc(pkt->side_data,
@@ -274,7 +274,7 @@ uint8_t *av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
     if (!pkt->side_data)
         return NULL;
 
-    pkt->side_data[elems].data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
+    pkt->side_data[elems].data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!pkt->side_data[elems].data)
         return NULL;
     pkt->side_data[elems].size = size;
diff --git a/libavcodec/binkaudio.c b/libavcodec/binkaudio.c
index c709ab03e7..71ad344bbf 100644
--- a/libavcodec/binkaudio.c
+++ b/libavcodec/binkaudio.c
@@ -302,7 +302,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
             av_log(avctx, AV_LOG_ERROR, "Packet is too small\n");
             return AVERROR_INVALIDDATA;
         }
-        buf = av_realloc(s->packet_buffer, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
+        buf = av_realloc(s->packet_buffer, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!buf)
             return AVERROR(ENOMEM);
         s->packet_buffer = buf;
diff --git a/libavcodec/cdxl.c b/libavcodec/cdxl.c
index 0b4aa29ce4..99e96eb502 100644
--- a/libavcodec/cdxl.c
+++ b/libavcodec/cdxl.c
@@ -263,7 +263,7 @@ static int cdxl_decode_frame(AVCodecContext *avctx, void *data,
 
     if (encoding) {
         av_fast_padded_malloc(&c->new_video, &c->new_video_size,
-                              h * w + FF_INPUT_BUFFER_PADDING_SIZE);
+                              h * w + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!c->new_video)
             return AVERROR(ENOMEM);
         if (c->bpp == 8)
diff --git a/libavcodec/cook.c b/libavcodec/cook.c
index 2bc0abfce3..ddce57f6d3 100644
--- a/libavcodec/cook.c
+++ b/libavcodec/cook.c
@@ -1213,11 +1213,11 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
 
     /* Pad the databuffer with:
        DECODE_BYTES_PAD1 or DECODE_BYTES_PAD2 for decode_bytes(),
-       FF_INPUT_BUFFER_PADDING_SIZE, for the bitstreamreader. */
+       AV_INPUT_BUFFER_PADDING_SIZE, for the bitstreamreader. */
     q->decoded_bytes_buffer =
         av_mallocz(avctx->block_align
                    + DECODE_BYTES_PAD1(avctx->block_align)
-                   + FF_INPUT_BUFFER_PADDING_SIZE);
+                   + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!q->decoded_bytes_buffer)
         return AVERROR(ENOMEM);
 
diff --git a/libavcodec/dca_parser.c b/libavcodec/dca_parser.c
index d827daac37..c33cc9acaa 100644
--- a/libavcodec/dca_parser.c
+++ b/libavcodec/dca_parser.c
@@ -113,7 +113,7 @@ static int dca_parse_params(const uint8_t *buf, int buf_size, int *duration,
                             int *sample_rate, int *framesize)
 {
     GetBitContext gb;
-    uint8_t hdr[12 + FF_INPUT_BUFFER_PADDING_SIZE] = { 0 };
+    uint8_t hdr[12 + AV_INPUT_BUFFER_PADDING_SIZE] = { 0 };
     int ret, sample_blocks, sr_code;
 
     if (buf_size < 12)
diff --git a/libavcodec/dss_sp.c b/libavcodec/dss_sp.c
index 16b738b7a9..20b05287a7 100644
--- a/libavcodec/dss_sp.c
+++ b/libavcodec/dss_sp.c
@@ -65,7 +65,7 @@ typedef struct DssSpContext {
     int pulse_dec_mode;
 
     DECLARE_ALIGNED(16, uint8_t, bits)[DSS_SP_FRAME_SIZE +
-                                       FF_INPUT_BUFFER_PADDING_SIZE];
+                                       AV_INPUT_BUFFER_PADDING_SIZE];
 } DssSpContext;
 
 /*
diff --git a/libavcodec/dump_extradata_bsf.c b/libavcodec/dump_extradata_bsf.c
index 62773e9e8d..3f54899794 100644
--- a/libavcodec/dump_extradata_bsf.c
+++ b/libavcodec/dump_extradata_bsf.c
@@ -36,12 +36,12 @@ static int dump_extradata(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx,
             /*||(? && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_BEGIN)*/){
             int size= buf_size + avctx->extradata_size;
             *poutbuf_size= size;
-            *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
+            *poutbuf= av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!*poutbuf)
                 return AVERROR(ENOMEM);
 
             memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);
-            memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+            memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
             return 1;
         }
     }
diff --git a/libavcodec/dvdec.c b/libavcodec/dvdec.c
index daa8d19ebe..9ee9933cdc 100644
--- a/libavcodec/dvdec.c
+++ b/libavcodec/dvdec.c
@@ -167,8 +167,8 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
     GetBitContext gb;
     BlockInfo mb_data[5 * DV_MAX_BPM], *mb, *mb1;
     LOCAL_ALIGNED_16(int16_t, sblock, [5 * DV_MAX_BPM], [64]);
-    LOCAL_ALIGNED_16(uint8_t, mb_bit_buffer, [80     + FF_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */
-    LOCAL_ALIGNED_16(uint8_t, vs_bit_buffer, [80 * 5 + FF_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */
+    LOCAL_ALIGNED_16(uint8_t, mb_bit_buffer, [80     + AV_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */
+    LOCAL_ALIGNED_16(uint8_t, vs_bit_buffer, [80 * 5 + AV_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */
     const int log2_blocksize = 3;
     int is_field_mode[5];
 
diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c
index 08e59de763..32b3711e16 100644
--- a/libavcodec/ffv1enc.c
+++ b/libavcodec/ffv1enc.c
@@ -940,7 +940,7 @@ static int ffv1_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
 
     if ((ret = ff_alloc_packet(pkt, avctx->width * avctx->height *
                              ((8 * 2 + 1 + 1) * 4) / 8 +
-                             FF_MIN_BUFFER_SIZE)) < 0) {
+                             AV_INPUT_BUFFER_MIN_SIZE)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
         return ret;
     }
diff --git a/libavcodec/g2meet.c b/libavcodec/g2meet.c
index 21d7bb4da6..85f53e2bbe 100644
--- a/libavcodec/g2meet.c
+++ b/libavcodec/g2meet.c
@@ -294,10 +294,10 @@ static int jpg_decode_data(JPGContext *c, int width, int height,
     const int ridx = swapuv ? 2 : 0;
 
     if ((ret = av_reallocp(&c->buf,
-                           src_size + FF_INPUT_BUFFER_PADDING_SIZE)) < 0)
+                           src_size + AV_INPUT_BUFFER_PADDING_SIZE)) < 0)
         return ret;
     jpg_unescape(src, src_size, c->buf, &unesc_size);
-    memset(c->buf + unesc_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(c->buf + unesc_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
     init_get_bits(&gb, c->buf, unesc_size * 8);
 
     width = FFALIGN(width, 16);
@@ -1170,7 +1170,7 @@ static int g2m_init_buffers(G2MContext *c)
         c->synth_tile  = av_mallocz(c->tile_stride      * aligned_height);
         c->jpeg_tile   = av_mallocz(c->tile_stride      * aligned_height);
         c->kempf_buf   = av_mallocz((c->tile_width + 1) * aligned_height +
-                                    FF_INPUT_BUFFER_PADDING_SIZE);
+                                    AV_INPUT_BUFFER_PADDING_SIZE);
         c->kempf_flags = av_mallocz(c->tile_width       * aligned_height);
         if (!c->synth_tile || !c->jpeg_tile ||
             !c->kempf_buf || !c->kempf_flags)
diff --git a/libavcodec/get_bits.h b/libavcodec/get_bits.h
index ec4065370e..ea7e0c4509 100644
--- a/libavcodec/get_bits.h
+++ b/libavcodec/get_bits.h
@@ -367,7 +367,7 @@ static inline int check_marker(GetBitContext *s, const char *msg)
 
 /**
  * Initialize GetBitContext.
- * @param buffer bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE bytes
+ * @param buffer bitstream buffer, must be AV_INPUT_BUFFER_PADDING_SIZE bytes
  *        larger than the actual read bits because some optimized bitstream
  *        readers read 32 or 64 bit at once and could read over the end
  * @param bit_size the size of the buffer in bits
@@ -400,7 +400,7 @@ static inline int init_get_bits(GetBitContext *s, const uint8_t *buffer,
 
 /**
  * Initialize GetBitContext.
- * @param buffer bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE bytes
+ * @param buffer bitstream buffer, must be AV_INPUT_BUFFER_PADDING_SIZE bytes
  *        larger than the actual read bits because some optimized bitstream
  *        readers read 32 or 64 bit at once and could read over the end
  * @param byte_size the size of the buffer in bytes
diff --git a/libavcodec/gif.c b/libavcodec/gif.c
index a8c7f37d7f..451e335991 100644
--- a/libavcodec/gif.c
+++ b/libavcodec/gif.c
@@ -153,7 +153,7 @@ static int gif_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     uint8_t *outbuf_ptr, *end;
     int ret;
 
-    if ((ret = ff_alloc_packet(pkt, avctx->width*avctx->height*7/5 + FF_MIN_BUFFER_SIZE)) < 0) {
+    if ((ret = ff_alloc_packet(pkt, avctx->width*avctx->height*7/5 + AV_INPUT_BUFFER_MIN_SIZE)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
         return ret;
     }
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 6693d47b7d..eb4edb9f9e 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -275,7 +275,7 @@ const uint8_t *ff_h264_decode_nal(H264Context *h, H264SliceContext *sl,
     }
 
     av_fast_malloc(&sl->rbsp_buffer, &sl->rbsp_buffer_size,
-                   length + FF_INPUT_BUFFER_PADDING_SIZE);
+                   length + AV_INPUT_BUFFER_PADDING_SIZE);
     dst = sl->rbsp_buffer;
 
     if (!dst)
@@ -304,7 +304,7 @@ const uint8_t *ff_h264_decode_nal(H264Context *h, H264SliceContext *sl,
         dst[di++] = src[si++];
 
 nsc:
-    memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(dst + di, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     *dst_length = di;
     *consumed   = si + 1; // +1 for the header
diff --git a/libavcodec/h264_mp4toannexb_bsf.c b/libavcodec/h264_mp4toannexb_bsf.c
index 3b212e5a55..eeb250f595 100644
--- a/libavcodec/h264_mp4toannexb_bsf.c
+++ b/libavcodec/h264_mp4toannexb_bsf.c
@@ -41,7 +41,7 @@ static int alloc_and_copy(uint8_t **poutbuf, int *poutbuf_size,
 
     *poutbuf_size += sps_pps_size + in_size + nal_header_size;
     if ((err = av_reallocp(poutbuf,
-                           *poutbuf_size + FF_INPUT_BUFFER_PADDING_SIZE)) < 0) {
+                           *poutbuf_size + AV_INPUT_BUFFER_PADDING_SIZE)) < 0) {
         *poutbuf_size = 0;
         return err;
     }
@@ -109,7 +109,7 @@ static int h264_extradata_to_annexb(AVCodecContext *avctx, const int padding)
     }
 
     if (out)
-        memset(out + total_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+        memset(out + total_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     if (!sps_seen)
         av_log(avctx, AV_LOG_WARNING,
@@ -150,7 +150,7 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc,
 
     /* retrieve sps and pps NAL units from extradata */
     if (!ctx->extradata_parsed) {
-        ret = h264_extradata_to_annexb(avctx, FF_INPUT_BUFFER_PADDING_SIZE);
+        ret = h264_extradata_to_annexb(avctx, AV_INPUT_BUFFER_PADDING_SIZE);
         if (ret < 0)
             return ret;
         ctx->length_size      = ret;
diff --git a/libavcodec/hevc_mp4toannexb_bsf.c b/libavcodec/hevc_mp4toannexb_bsf.c
index 449c8a3287..dfecf5e99f 100644
--- a/libavcodec/hevc_mp4toannexb_bsf.c
+++ b/libavcodec/hevc_mp4toannexb_bsf.c
@@ -67,18 +67,18 @@ static int hevc_extradata_to_annexb(AVCodecContext *avctx)
         for (j = 0; j < cnt; j++) {
             int nalu_len = bytestream2_get_be16(&gb);
 
-            if (4 + FF_INPUT_BUFFER_PADDING_SIZE + nalu_len > SIZE_MAX - new_extradata_size) {
+            if (4 + AV_INPUT_BUFFER_PADDING_SIZE + nalu_len > SIZE_MAX - new_extradata_size) {
                 ret = AVERROR_INVALIDDATA;
                 goto fail;
             }
-            ret = av_reallocp(&new_extradata, new_extradata_size + nalu_len + 4 + FF_INPUT_BUFFER_PADDING_SIZE);
+            ret = av_reallocp(&new_extradata, new_extradata_size + nalu_len + 4 + AV_INPUT_BUFFER_PADDING_SIZE);
             if (ret < 0)
                 goto fail;
 
             AV_WB32(new_extradata + new_extradata_size, 1); // add the startcode
             bytestream2_get_buffer(&gb, new_extradata + new_extradata_size + 4, nalu_len);
             new_extradata_size += 4 + nalu_len;
-            memset(new_extradata + new_extradata_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+            memset(new_extradata + new_extradata_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
         }
     }
 
diff --git a/libavcodec/hevc_parse.c b/libavcodec/hevc_parse.c
index 93c8175702..de00245809 100644
--- a/libavcodec/hevc_parse.c
+++ b/libavcodec/hevc_parse.c
@@ -89,7 +89,7 @@ int ff_hevc_extract_rbsp(const uint8_t *src, int length,
     }
 
     av_fast_malloc(&nal->rbsp_buffer, &nal->rbsp_buffer_size,
-                   length + FF_INPUT_BUFFER_PADDING_SIZE);
+                   length + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!nal->rbsp_buffer)
         return AVERROR(ENOMEM);
 
@@ -119,7 +119,7 @@ int ff_hevc_extract_rbsp(const uint8_t *src, int length,
         dst[di++] = src[si++];
 
 nsc:
-    memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(dst + di, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     nal->data = dst;
     nal->size = di;
diff --git a/libavcodec/huffyuvdec.c b/libavcodec/huffyuvdec.c
index 3e73ed4d86..12eca26cff 100644
--- a/libavcodec/huffyuvdec.c
+++ b/libavcodec/huffyuvdec.c
@@ -35,14 +35,14 @@
 #include "thread.h"
 
 #define classic_shift_luma_table_size 42
-static const unsigned char classic_shift_luma[classic_shift_luma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = {
+static const unsigned char classic_shift_luma[classic_shift_luma_table_size + AV_INPUT_BUFFER_PADDING_SIZE] = {
     34, 36, 35, 69, 135, 232,   9, 16, 10, 24,  11,  23,  12,  16, 13, 10,
     14,  8, 15,  8,  16,   8,  17, 20, 16, 10, 207, 206, 205, 236, 11,  8,
     10, 21,  9, 23,   8,   8, 199, 70, 69, 68,   0
 };
 
 #define classic_shift_chroma_table_size 59
-static const unsigned char classic_shift_chroma[classic_shift_chroma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = {
+static const unsigned char classic_shift_chroma[classic_shift_chroma_table_size + AV_INPUT_BUFFER_PADDING_SIZE] = {
     66, 36,  37,  38, 39, 40,  41,  75,  76,  77, 110, 239, 144, 81, 82,  83,
     84, 85, 118, 183, 56, 57,  88,  89,  56,  89, 154,  57,  58, 57, 26, 141,
     57, 56,  58,  57, 58, 57, 184, 119, 214, 245, 116,  83,  82, 49, 80,  79,
@@ -511,11 +511,11 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
 
     av_fast_malloc(&s->bitstream_buffer,
                    &s->bitstream_buffer_size,
-                   buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+                   buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!s->bitstream_buffer)
         return AVERROR(ENOMEM);
 
-    memset(s->bitstream_buffer + buf_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(s->bitstream_buffer + buf_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
     s->bdsp.bswap_buf((uint32_t *) s->bitstream_buffer,
                       (const uint32_t *) buf, buf_size / 4);
 
diff --git a/libavcodec/huffyuvenc.c b/libavcodec/huffyuvenc.c
index 68beb018fa..c18b38c4c1 100644
--- a/libavcodec/huffyuvenc.c
+++ b/libavcodec/huffyuvenc.c
@@ -453,7 +453,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     int i, j, size = 0, ret;
 
     if (!pkt->data &&
-        (ret = av_new_packet(pkt, width * height * 3 * 4 + FF_MIN_BUFFER_SIZE)) < 0) {
+        (ret = av_new_packet(pkt, width * height * 3 * 4 + AV_INPUT_BUFFER_MIN_SIZE)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error allocating output packet.\n");
         return ret;
     }
diff --git a/libavcodec/iff.c b/libavcodec/iff.c
index 6d9ac93971..0d56cd5837 100644
--- a/libavcodec/iff.c
+++ b/libavcodec/iff.c
@@ -172,7 +172,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
     if ((err = av_image_check_size(avctx->width, avctx->height, 0, avctx)))
         return err;
     s->planesize = FFALIGN(avctx->width, 16) >> 3; // Align plane size in bits to word-boundary
-    s->planebuf  = av_malloc(s->planesize + FF_INPUT_BUFFER_PADDING_SIZE);
+    s->planebuf  = av_malloc(s->planesize + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!s->planebuf)
         return AVERROR(ENOMEM);
 
diff --git a/libavcodec/imc.c b/libavcodec/imc.c
index d2c96da166..498fdd578e 100644
--- a/libavcodec/imc.c
+++ b/libavcodec/imc.c
@@ -997,7 +997,7 @@ static int imc_decode_frame(AVCodecContext *avctx, void *data,
 
     IMCContext *q = avctx->priv_data;
 
-    LOCAL_ALIGNED_16(uint16_t, buf16, [(IMC_BLOCK_SIZE + FF_INPUT_BUFFER_PADDING_SIZE) / 2]);
+    LOCAL_ALIGNED_16(uint16_t, buf16, [(IMC_BLOCK_SIZE + AV_INPUT_BUFFER_PADDING_SIZE) / 2]);
 
     if (buf_size < IMC_BLOCK_SIZE * avctx->channels) {
         av_log(avctx, AV_LOG_ERROR, "frame too small!\n");
diff --git a/libavcodec/imx_dump_header_bsf.c b/libavcodec/imx_dump_header_bsf.c
index 5c647c4d68..a79039da33 100644
--- a/libavcodec/imx_dump_header_bsf.c
+++ b/libavcodec/imx_dump_header_bsf.c
@@ -42,7 +42,7 @@ static int imx_dump_header(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx
         return 0;
     }
 
-    *poutbuf = av_malloc(buf_size + 20 + FF_INPUT_BUFFER_PADDING_SIZE);
+    *poutbuf = av_malloc(buf_size + 20 + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!*poutbuf)
         return AVERROR(ENOMEM);
     poutbufp = *poutbuf;
diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index 6edf587ce1..fc906322f8 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -157,7 +157,7 @@ int avpriv_unlock_avformat(void);
  * This value was chosen such that every bit of the buffer is
  * addressable by a 32-bit signed integer as used by get_bits.
  */
-#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
+#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - AV_INPUT_BUFFER_PADDING_SIZE)
 
 /**
  * Check AVPacket size and/or allocate data.
diff --git a/libavcodec/jpeglsenc.c b/libavcodec/jpeglsenc.c
index 47c420fc50..7fb4bde238 100644
--- a/libavcodec/jpeglsenc.c
+++ b/libavcodec/jpeglsenc.c
@@ -268,7 +268,7 @@ static int encode_picture_ls(AVCodecContext *avctx, AVPacket *pkt,
         comps = 3;
 
     if ((ret = ff_alloc_packet(pkt, avctx->width * avctx->height * comps * 4 +
-                               FF_MIN_BUFFER_SIZE)) < 0) {
+                               AV_INPUT_BUFFER_MIN_SIZE)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
         return ret;
     }
diff --git a/libavcodec/libdcadec.c b/libavcodec/libdcadec.c
index 9d983e8fbb..b88f80763b 100644
--- a/libavcodec/libdcadec.c
+++ b/libavcodec/libdcadec.c
@@ -54,7 +54,7 @@ static int dcadec_decode_frame(AVCodecContext *avctx, void *data,
     }
     mrk = AV_RB32(input);
     if (mrk != DCA_SYNCWORD_CORE_BE && mrk != DCA_SYNCWORD_SUBSTREAM) {
-        s->buffer = av_fast_realloc(s->buffer, &s->buffer_size, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
+        s->buffer = av_fast_realloc(s->buffer, &s->buffer_size, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!s->buffer)
             return AVERROR(ENOMEM);
 
diff --git a/libavcodec/libfaac.c b/libavcodec/libfaac.c
index 2d8564f89a..5cdbe27686 100644
--- a/libavcodec/libfaac.c
+++ b/libavcodec/libfaac.c
@@ -139,7 +139,7 @@ static av_cold int Faac_encode_init(AVCodecContext *avctx)
 
         if (!faacEncGetDecoderSpecificInfo(s->faac_handle, &buffer,
                                            &decoder_specific_info_size)) {
-            avctx->extradata = av_malloc(decoder_specific_info_size + FF_INPUT_BUFFER_PADDING_SIZE);
+            avctx->extradata = av_malloc(decoder_specific_info_size + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!avctx->extradata) {
                 ret = AVERROR(ENOMEM);
                 goto error;
diff --git a/libavcodec/libfdk-aacenc.c b/libavcodec/libfdk-aacenc.c
index 2413c71f2c..2cea58f152 100644
--- a/libavcodec/libfdk-aacenc.c
+++ b/libavcodec/libfdk-aacenc.c
@@ -292,7 +292,7 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
         avctx->extradata_size = info.confSize;
         avctx->extradata      = av_mallocz(avctx->extradata_size +
-                                           FF_INPUT_BUFFER_PADDING_SIZE);
+                                           AV_INPUT_BUFFER_PADDING_SIZE);
         if (!avctx->extradata) {
             ret = AVERROR(ENOMEM);
             goto error;
diff --git a/libavcodec/libopenh264enc.c b/libavcodec/libopenh264enc.c
index 9ac33e2ba1..fb153c4d58 100644
--- a/libavcodec/libopenh264enc.c
+++ b/libavcodec/libopenh264enc.c
@@ -143,7 +143,7 @@ static av_cold int svc_encode_init(AVCodecContext *avctx)
         (*s->encoder)->EncodeParameterSets(s->encoder, &fbi);
         for (i = 0; i < fbi.sLayerInfo[0].iNalCount; i++)
             size += fbi.sLayerInfo[0].pNalLengthInByte[i];
-        avctx->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
+        avctx->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!avctx->extradata) {
             err = AVERROR(ENOMEM);
             goto fail;
diff --git a/libavcodec/libopusenc.c b/libavcodec/libopusenc.c
index ec4e513bc6..08f0f28ac8 100644
--- a/libavcodec/libopusenc.c
+++ b/libavcodec/libopusenc.c
@@ -262,7 +262,7 @@ static int av_cold libopus_encode_init(AVCodecContext *avctx)
     }
 
     header_size = 19 + (avctx->channels > 2 ? 2 + avctx->channels : 0);
-    avctx->extradata = av_malloc(header_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    avctx->extradata = av_malloc(header_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!avctx->extradata) {
         av_log(avctx, AV_LOG_ERROR, "Failed to allocate extradata.\n");
         ret = AVERROR(ENOMEM);
diff --git a/libavcodec/libspeexenc.c b/libavcodec/libspeexenc.c
index 86b1ac793c..88e5d2fea4 100644
--- a/libavcodec/libspeexenc.c
+++ b/libavcodec/libspeexenc.c
@@ -244,7 +244,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
     header_data = speex_header_to_packet(&s->header, &header_size);
 
     /* allocate extradata */
-    avctx->extradata = av_malloc(header_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    avctx->extradata = av_malloc(header_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!avctx->extradata) {
         speex_header_free(header_data);
         speex_encoder_destroy(s->enc_state);
diff --git a/libavcodec/libvo-aacenc.c b/libavcodec/libvo-aacenc.c
index 25d7718314..876ef4c197 100644
--- a/libavcodec/libvo-aacenc.c
+++ b/libavcodec/libvo-aacenc.c
@@ -105,7 +105,7 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
     if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
         avctx->extradata_size = 2;
         avctx->extradata      = av_mallocz(avctx->extradata_size +
-                                           FF_INPUT_BUFFER_PADDING_SIZE);
+                                           AV_INPUT_BUFFER_PADDING_SIZE);
         if (!avctx->extradata) {
             ret = AVERROR(ENOMEM);
             goto error;
diff --git a/libavcodec/libvorbis.c b/libavcodec/libvorbis.c
index 3f1e648e97..86c1ed6a75 100644
--- a/libavcodec/libvorbis.c
+++ b/libavcodec/libvorbis.c
@@ -206,7 +206,7 @@ static av_cold int libvorbis_encode_init(AVCodecContext *avctx)
                                 xiph_len(header_comm.bytes) +
                                 header_code.bytes;
     p = avctx->extradata = av_malloc(avctx->extradata_size +
-                                     FF_INPUT_BUFFER_PADDING_SIZE);
+                                     AV_INPUT_BUFFER_PADDING_SIZE);
     if (!p) {
         ret = AVERROR(ENOMEM);
         goto error;
diff --git a/libavcodec/libx265.c b/libavcodec/libx265.c
index 91bd83fcdc..11ffccf986 100644
--- a/libavcodec/libx265.c
+++ b/libavcodec/libx265.c
@@ -225,7 +225,7 @@ static av_cold int libx265_encode_init(AVCodecContext *avctx)
             return AVERROR_INVALIDDATA;
         }
 
-        avctx->extradata = av_malloc(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+        avctx->extradata = av_malloc(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!avctx->extradata) {
             av_log(avctx, AV_LOG_ERROR,
                    "Cannot allocate HEVC header of size %d.\n", avctx->extradata_size);
diff --git a/libavcodec/libxavs.c b/libavcodec/libxavs.c
index c9cb34f6c0..f0f5dfdcd3 100644
--- a/libavcodec/libxavs.c
+++ b/libavcodec/libxavs.c
@@ -81,7 +81,7 @@ static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,
 {
     XavsContext *x4 = ctx->priv_data;
     uint8_t *p;
-    int i, s, ret, size = x4->sei_size + FF_MIN_BUFFER_SIZE;
+    int i, s, ret, size = x4->sei_size + AV_INPUT_BUFFER_MIN_SIZE;
 
     if (!nnal)
         return 0;
diff --git a/libavcodec/libxvid.c b/libavcodec/libxvid.c
index 02f1af8475..750f891a38 100644
--- a/libavcodec/libxvid.c
+++ b/libavcodec/libxvid.c
@@ -688,7 +688,7 @@ static int xvid_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     xvid_enc_stats_t xvid_enc_stats = { 0 };
 
     if (!user_packet &&
-        (ret = av_new_packet(pkt, mb_width * mb_height * MAX_MB_BYTES + FF_MIN_BUFFER_SIZE)) < 0) {
+        (ret = av_new_packet(pkt, mb_width * mb_height * MAX_MB_BYTES + AV_INPUT_BUFFER_MIN_SIZE)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
         return ret;
     }
diff --git a/libavcodec/ljpegenc.c b/libavcodec/ljpegenc.c
index d57d0331c8..4e02e3c906 100644
--- a/libavcodec/ljpegenc.c
+++ b/libavcodec/ljpegenc.c
@@ -211,7 +211,7 @@ static int ljpeg_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     const int height = avctx->height;
     const int mb_width  = (width  + s->hsample[0] - 1) / s->hsample[0];
     const int mb_height = (height + s->vsample[0] - 1) / s->vsample[0];
-    int max_pkt_size = FF_MIN_BUFFER_SIZE;
+    int max_pkt_size = AV_INPUT_BUFFER_MIN_SIZE;
     int ret, header_bits;
 
     if (avctx->pix_fmt == AV_PIX_FMT_BGR24)
diff --git a/libavcodec/mdec.c b/libavcodec/mdec.c
index ddb9ddbbc3..83b83d02ad 100644
--- a/libavcodec/mdec.c
+++ b/libavcodec/mdec.c
@@ -181,7 +181,7 @@ static int decode_frame(AVCodecContext *avctx,
     frame.f->pict_type = AV_PICTURE_TYPE_I;
     frame.f->key_frame = 1;
 
-    av_fast_malloc(&a->bitstream_buffer, &a->bitstream_buffer_size, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    av_fast_malloc(&a->bitstream_buffer, &a->bitstream_buffer_size, buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!a->bitstream_buffer)
         return AVERROR(ENOMEM);
     for (i = 0; i < buf_size; i += 2) {
diff --git a/libavcodec/mjpega_dump_header_bsf.c b/libavcodec/mjpega_dump_header_bsf.c
index 1bcb9e7223..dfb8916dd9 100644
--- a/libavcodec/mjpega_dump_header_bsf.c
+++ b/libavcodec/mjpega_dump_header_bsf.c
@@ -44,7 +44,7 @@ static int mjpega_dump_header(AVBitStreamFilterContext *bsfc, AVCodecContext *av
     }
 
     *poutbuf_size = 0;
-    *poutbuf = av_malloc(buf_size + 44 + FF_INPUT_BUFFER_PADDING_SIZE);
+    *poutbuf = av_malloc(buf_size + 44 + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!*poutbuf)
         return AVERROR(ENOMEM);
     poutbufp = *poutbuf;
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index da1c6d771e..d8fc9defa3 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -1422,7 +1422,7 @@ int ff_mjpeg_find_marker(MJpegDecodeContext *s,
         *unescaped_buf_ptr  = s->buffer;
         *unescaped_buf_size = dst - s->buffer;
         memset(s->buffer + *unescaped_buf_size, 0,
-               FF_INPUT_BUFFER_PADDING_SIZE);
+               AV_INPUT_BUFFER_PADDING_SIZE);
 
         av_log(s->avctx, AV_LOG_DEBUG, "escaping removed %td bytes\n",
                (buf_end - *buf_ptr) - (dst - s->buffer));
@@ -1465,7 +1465,7 @@ int ff_mjpeg_find_marker(MJpegDecodeContext *s,
         *unescaped_buf_ptr  = dst;
         *unescaped_buf_size = (bit_count + 7) >> 3;
         memset(s->buffer + *unescaped_buf_size, 0,
-               FF_INPUT_BUFFER_PADDING_SIZE);
+               AV_INPUT_BUFFER_PADDING_SIZE);
     } else {
         *unescaped_buf_ptr  = *buf_ptr;
         *unescaped_buf_size = buf_end - *buf_ptr;
diff --git a/libavcodec/motionpixels.c b/libavcodec/motionpixels.c
index e97a0cdeba..a18541b852 100644
--- a/libavcodec/motionpixels.c
+++ b/libavcodec/motionpixels.c
@@ -274,14 +274,14 @@ static int mp_decode_frame(AVCodecContext *avctx,
     }
 
     /* le32 bitstream msb first */
-    av_fast_malloc(&mp->bswapbuf, &mp->bswapbuf_size, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    av_fast_malloc(&mp->bswapbuf, &mp->bswapbuf_size, buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!mp->bswapbuf)
         return AVERROR(ENOMEM);
     mp->bdsp.bswap_buf((uint32_t *) mp->bswapbuf, (const uint32_t *) buf,
                        buf_size / 4);
     if (buf_size & 3)
         memcpy(mp->bswapbuf + (buf_size & ~3), buf + (buf_size & ~3), buf_size & 3);
-    memset(mp->bswapbuf + buf_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(mp->bswapbuf + buf_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
     init_get_bits(&gb, mp->bswapbuf, buf_size * 8);
 
     memset(mp->changes_map, 0, avctx->width * avctx->height);
diff --git a/libavcodec/movsub_bsf.c b/libavcodec/movsub_bsf.c
index 7b4cd62548..0484303840 100644
--- a/libavcodec/movsub_bsf.c
+++ b/libavcodec/movsub_bsf.c
@@ -28,7 +28,7 @@ static int text2movsub(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, co
                      const uint8_t *buf, int buf_size, int keyframe){
     if (buf_size > 0xffff) return 0;
     *poutbuf_size = buf_size + 2;
-    *poutbuf = av_malloc(*poutbuf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    *poutbuf = av_malloc(*poutbuf_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!*poutbuf)
         return AVERROR(ENOMEM);
     AV_WB16(*poutbuf, buf_size);
@@ -47,7 +47,7 @@ static int mov2textsub(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, co
                      const uint8_t *buf, int buf_size, int keyframe){
     if (buf_size < 2) return 0;
     *poutbuf_size = FFMIN(buf_size - 2, AV_RB16(buf));
-    *poutbuf = av_malloc(*poutbuf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    *poutbuf = av_malloc(*poutbuf_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!*poutbuf)
         return AVERROR(ENOMEM);
     memcpy(*poutbuf, buf + 2, *poutbuf_size);
diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
index 146a332b72..b09aeb2b74 100644
--- a/libavcodec/mpeg4videodec.c
+++ b/libavcodec/mpeg4videodec.c
@@ -2516,7 +2516,7 @@ int ff_mpeg4_frame_end(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
             av_fast_malloc(&s->bitstream_buffer,
                            &s->allocated_bitstream_buffer_size,
                            buf_size - current_pos +
-                           FF_INPUT_BUFFER_PADDING_SIZE);
+                           AV_INPUT_BUFFER_PADDING_SIZE);
             if (!s->bitstream_buffer)
                 return AVERROR(ENOMEM);
             memcpy(s->bitstream_buffer, buf + current_pos,
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 49528f2827..ae6fb7e9a5 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -544,7 +544,7 @@ do {\
 
     if (s1->bitstream_buffer) {
         if (s1->bitstream_buffer_size +
-            FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size)
+            AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size)
             av_fast_malloc(&s->bitstream_buffer,
                            &s->allocated_bitstream_buffer_size,
                            s1->allocated_bitstream_buffer_size);
@@ -552,7 +552,7 @@ do {\
         memcpy(s->bitstream_buffer, s1->bitstream_buffer,
                s1->bitstream_buffer_size);
         memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
-               FF_INPUT_BUFFER_PADDING_SIZE);
+               AV_INPUT_BUFFER_PADDING_SIZE);
     }
 
     // linesize dependend scratch buffer allocation
diff --git a/libavcodec/mss2.c b/libavcodec/mss2.c
index 7a6ce2680e..4a4eaa0b88 100644
--- a/libavcodec/mss2.c
+++ b/libavcodec/mss2.c
@@ -476,7 +476,7 @@ static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
     Rectangle wmv9rects[MAX_WMV9_RECTANGLES], *r;
     int used_rects = 0, i, implicit_rect = 0, av_uninit(wmv9_mask);
 
-    av_assert0(FF_INPUT_BUFFER_PADDING_SIZE >=
+    av_assert0(AV_INPUT_BUFFER_PADDING_SIZE >=
                ARITH2_PADDING + (MIN_CACHE_BITS + 7) / 8);
 
     init_get_bits(&gb, buf, buf_size * 8);
diff --git a/libavcodec/noise_bsf.c b/libavcodec/noise_bsf.c
index 00ceeadfec..81840bd07b 100644
--- a/libavcodec/noise_bsf.c
+++ b/libavcodec/noise_bsf.c
@@ -32,10 +32,10 @@ static int noise(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const ch
     int amount= args ? atoi(args) : (*state % 10001+1);
     int i;
 
-    *poutbuf= av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    *poutbuf= av_malloc(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!*poutbuf)
         return AVERROR(ENOMEM);
-    memcpy(*poutbuf, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    memcpy(*poutbuf, buf, buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
     for(i=0; i<buf_size; i++){
         (*state) += (*poutbuf)[i] + 1;
         if(*state % amount == 0)
diff --git a/libavcodec/nuv.c b/libavcodec/nuv.c
index eb73c2ff82..c56003c3ad 100644
--- a/libavcodec/nuv.c
+++ b/libavcodec/nuv.c
@@ -128,7 +128,7 @@ static int codec_reinit(AVCodecContext *avctx, int width, int height,
         avctx->height = c->height = height;
         ptr = av_fast_realloc(c->decomp_buf, &c->decomp_size,
                               c->height * c->width * 3 / 2 +
-                              FF_INPUT_BUFFER_PADDING_SIZE +
+                              AV_INPUT_BUFFER_PADDING_SIZE +
                               RTJPEG_HEADER_SIZE);
         if (!ptr) {
             av_log(avctx, AV_LOG_ERROR,
@@ -202,7 +202,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
     buf       = &buf[12];
     buf_size -= 12;
     if (comptype == NUV_RTJPEG_IN_LZO || comptype == NUV_LZO) {
-        int outlen = c->decomp_size - FF_INPUT_BUFFER_PADDING_SIZE;
+        int outlen = c->decomp_size - AV_INPUT_BUFFER_PADDING_SIZE;
         int inlen  = buf_size;
         if (av_lzo1x_decode(c->decomp_buf, &outlen, buf, &inlen)) {
             av_log(avctx, AV_LOG_ERROR, "error during lzo decompression\n");
diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index bfb5856a7f..cd4e065733 100644
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -747,7 +747,7 @@ static int nvenc_setup_extradata(AVCodecContext *avctx)
     NV_ENC_SEQUENCE_PARAM_PAYLOAD payload = { 0 };
     int ret;
 
-    avctx->extradata = av_mallocz(EXTRADATA_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
+    avctx->extradata = av_mallocz(EXTRADATA_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!avctx->extradata)
         return AVERROR(ENOMEM);
 
diff --git a/libavcodec/options.c b/libavcodec/options.c
index a433f25eb9..49c8aea030 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -203,7 +203,7 @@ int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
             memset(((uint8_t *) dest->obj) + size, 0, pad); \
     }
     alloc_and_copy_or_fail(extradata,    src->extradata_size,
-                           FF_INPUT_BUFFER_PADDING_SIZE);
+                           AV_INPUT_BUFFER_PADDING_SIZE);
     alloc_and_copy_or_fail(intra_matrix, 64 * sizeof(int16_t), 0);
     alloc_and_copy_or_fail(inter_matrix, 64 * sizeof(int16_t), 0);
     alloc_and_copy_or_fail(rc_override,  src->rc_override_count * sizeof(*src->rc_override), 0);
diff --git a/libavcodec/parser.c b/libavcodec/parser.c
index 1b223f50ee..4671c13ae6 100644
--- a/libavcodec/parser.c
+++ b/libavcodec/parser.c
@@ -126,7 +126,7 @@ int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx,
                      int64_t pts, int64_t dts, int64_t pos)
 {
     int index, i;
-    uint8_t dummy_buf[FF_INPUT_BUFFER_PADDING_SIZE];
+    uint8_t dummy_buf[AV_INPUT_BUFFER_PADDING_SIZE];
 
     if (!(s->flags & PARSER_FLAG_FETCHED_OFFSET)) {
         s->next_frame_offset =
@@ -195,13 +195,13 @@ int av_parser_change(AVCodecParserContext *s, AVCodecContext *avctx,
             int size = buf_size + avctx->extradata_size;
 
             *poutbuf_size = size;
-            *poutbuf      = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
+            *poutbuf      = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!*poutbuf)
                 return AVERROR(ENOMEM);
 
             memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);
             memcpy(*poutbuf + avctx->extradata_size, buf,
-                   buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+                   buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
             return 1;
         }
     }
@@ -243,7 +243,7 @@ int ff_combine_frame(ParseContext *pc, int next,
     if (next == END_NOT_FOUND) {
         void *new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size,
                                            *buf_size + pc->index +
-                                           FF_INPUT_BUFFER_PADDING_SIZE);
+                                           AV_INPUT_BUFFER_PADDING_SIZE);
 
         if (!new_buffer)
             return AVERROR(ENOMEM);
@@ -260,14 +260,14 @@ int ff_combine_frame(ParseContext *pc, int next,
     if (pc->index) {
         void *new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size,
                                            next + pc->index +
-                                           FF_INPUT_BUFFER_PADDING_SIZE);
+                                           AV_INPUT_BUFFER_PADDING_SIZE);
 
         if (!new_buffer)
             return AVERROR(ENOMEM);
         pc->buffer = new_buffer;
-        if (next > -FF_INPUT_BUFFER_PADDING_SIZE)
+        if (next > -AV_INPUT_BUFFER_PADDING_SIZE)
             memcpy(&pc->buffer[pc->index], *buf,
-                   next + FF_INPUT_BUFFER_PADDING_SIZE);
+                   next + AV_INPUT_BUFFER_PADDING_SIZE);
         pc->index = 0;
         *buf      = pc->buffer;
     }
diff --git a/libavcodec/pngenc.c b/libavcodec/pngenc.c
index 9f336a71d6..6ab4b7f54c 100644
--- a/libavcodec/pngenc.c
+++ b/libavcodec/pngenc.c
@@ -297,7 +297,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     enc_row_size    = deflateBound(&s->zstream, row_size);
     max_packet_size = avctx->height * (enc_row_size +
                                        ((enc_row_size + IOBUF_SIZE - 1) / IOBUF_SIZE) * 12)
-                      + FF_MIN_BUFFER_SIZE;
+                      + AV_INPUT_BUFFER_MIN_SIZE;
     if (!pkt->data &&
         (ret = av_new_packet(pkt, max_packet_size)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "Could not allocate output packet of size %d.\n",
diff --git a/libavcodec/pnm_parser.c b/libavcodec/pnm_parser.c
index 2e00c0a31e..175ca36267 100644
--- a/libavcodec/pnm_parser.c
+++ b/libavcodec/pnm_parser.c
@@ -55,7 +55,7 @@ retry:
             goto retry;
         }
 #if 0
-        if (pc->index && pc->index * 2 + FF_INPUT_BUFFER_PADDING_SIZE < pc->buffer_size && buf_size > pc->index) {
+        if (pc->index && pc->index * 2 + AV_INPUT_BUFFER_PADDING_SIZE < pc->buffer_size && buf_size > pc->index) {
             memcpy(pc->buffer + pc->index, buf, pc->index);
             pc->index += pc->index;
             buf       += pc->index;
diff --git a/libavcodec/proresenc.c b/libavcodec/proresenc.c
index e38f7a070f..0564b12ae2 100644
--- a/libavcodec/proresenc.c
+++ b/libavcodec/proresenc.c
@@ -948,7 +948,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
 
     pkt_size = ctx->frame_size_upper_bound;
 
-    if ((ret = ff_alloc_packet(pkt, pkt_size + FF_MIN_BUFFER_SIZE)) < 0) {
+    if ((ret = ff_alloc_packet(pkt, pkt_size + AV_INPUT_BUFFER_MIN_SIZE)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
         return ret;
     }
diff --git a/libavcodec/qsvdec.c b/libavcodec/qsvdec.c
index 8c324f42c9..44693d23e1 100644
--- a/libavcodec/qsvdec.c
+++ b/libavcodec/qsvdec.c
@@ -341,7 +341,7 @@ int ff_qsv_process_data(AVCodecContext *avctx, QSVContext *q,
             return AVERROR(ENOMEM);
 
         if (avctx->extradata) {
-            q->avctx_internal->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+            q->avctx_internal->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!q->avctx_internal->extradata)
                 return AVERROR(ENOMEM);
 
diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c
index e454f73d1b..752777bf30 100644
--- a/libavcodec/qsvenc.c
+++ b/libavcodec/qsvenc.c
@@ -177,7 +177,7 @@ static int qsv_retrieve_enc_params(AVCodecContext *avctx, QSVEncContext *q)
     }
 
     avctx->extradata = av_malloc(extradata.SPSBufSize + need_pps * extradata.PPSBufSize +
-                                 FF_INPUT_BUFFER_PADDING_SIZE);
+                                 AV_INPUT_BUFFER_PADDING_SIZE);
     if (!avctx->extradata)
         return AVERROR(ENOMEM);
 
@@ -185,7 +185,7 @@ static int qsv_retrieve_enc_params(AVCodecContext *avctx, QSVEncContext *q)
     if (need_pps)
         memcpy(avctx->extradata + extradata.SPSBufSize, pps_buf, extradata.PPSBufSize);
     avctx->extradata_size = extradata.SPSBufSize + need_pps * extradata.PPSBufSize;
-    memset(avctx->extradata + avctx->extradata_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(avctx->extradata + avctx->extradata_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     return 0;
 }
diff --git a/libavcodec/qsvenc_hevc.c b/libavcodec/qsvenc_hevc.c
index 0efb7940e9..be608715ec 100644
--- a/libavcodec/qsvenc_hevc.c
+++ b/libavcodec/qsvenc_hevc.c
@@ -140,7 +140,7 @@ static int generate_fake_vps(QSVEncContext *q, AVCodecContext *avctx)
     }
 
     vps_size = bytestream2_tell_p(&pbc);
-    new_extradata = av_mallocz(vps_size + avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    new_extradata = av_mallocz(vps_size + avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!new_extradata)
         return AVERROR(ENOMEM);
     memcpy(new_extradata, vps_buf, vps_size);
diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c
index d3a82ca615..ce98a83dba 100644
--- a/libavcodec/shorten.c
+++ b/libavcodec/shorten.c
@@ -431,7 +431,7 @@ static int shorten_decode_frame(AVCodecContext *avctx, void *data,
         void *tmp_ptr;
         s->max_framesize = 1024; // should hopefully be enough for the first header
         tmp_ptr = av_fast_realloc(s->bitstream, &s->allocated_bitstream_size,
-                                  s->max_framesize + FF_INPUT_BUFFER_PADDING_SIZE);
+                                  s->max_framesize + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!tmp_ptr) {
             av_log(avctx, AV_LOG_ERROR, "error allocating bitstream buffer\n");
             return AVERROR(ENOMEM);
diff --git a/libavcodec/startcode.c b/libavcodec/startcode.c
index d34981e67d..5c1ec84c21 100644
--- a/libavcodec/startcode.c
+++ b/libavcodec/startcode.c
@@ -33,7 +33,7 @@ int ff_startcode_find_candidate_c(const uint8_t *buf, int size)
     int i = 0;
 #if HAVE_FAST_UNALIGNED
     /* we check i < size instead of i + 3 / 7 because it is
-     * simpler and there must be FF_INPUT_BUFFER_PADDING_SIZE
+     * simpler and there must be AV_INPUT_BUFFER_PADDING_SIZE
      * bytes at the end.
      */
 #if HAVE_FAST_64BIT
diff --git a/libavcodec/svq1enc.c b/libavcodec/svq1enc.c
index 338b2afc7f..a869c2478b 100644
--- a/libavcodec/svq1enc.c
+++ b/libavcodec/svq1enc.c
@@ -586,7 +586,7 @@ static int svq1_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
 
     if (!pkt->data &&
         (ret = av_new_packet(pkt, s->y_block_width * s->y_block_height *
-                             MAX_MB_BYTES * 3 + FF_MIN_BUFFER_SIZE)) < 0) {
+                             MAX_MB_BYTES * 3 + AV_INPUT_BUFFER_MIN_SIZE)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
         return ret;
     }
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index b70abcc385..97b9d6fb01 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -141,7 +141,7 @@ static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
 {
     int i, ret = 0;
     uint8_t *src2 = av_malloc((unsigned)size +
-                              FF_INPUT_BUFFER_PADDING_SIZE);
+                              AV_INPUT_BUFFER_PADDING_SIZE);
 
     if (!src2) {
         av_log(s->avctx, AV_LOG_ERROR,
@@ -159,7 +159,7 @@ static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride,
         for (i = 0; i < size; i++)
             src2[i] = ff_reverse[src[i]];
     }
-    memset(src2 + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(src2 + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
     ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride,
                           s->compr, s->fax_opts);
     av_free(src2);
diff --git a/libavcodec/tiffenc.c b/libavcodec/tiffenc.c
index 1f5fa0b7d6..7c23ee2db8 100644
--- a/libavcodec/tiffenc.c
+++ b/libavcodec/tiffenc.c
@@ -309,7 +309,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     strips = (s->height - 1) / s->rps + 1;
 
     packet_size = avctx->height * ((avctx->width * s->bpp + 7) >> 3) * 2 +
-                  avctx->height * 4 + FF_MIN_BUFFER_SIZE;
+                  avctx->height * 4 + AV_INPUT_BUFFER_MIN_SIZE;
 
     if (!pkt->data &&
         (ret = av_new_packet(pkt, packet_size)) < 0) {
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c
index d280e3220c..84e8e2a9b3 100644
--- a/libavcodec/truemotion2.c
+++ b/libavcodec/truemotion2.c
@@ -856,7 +856,7 @@ static int decode_frame(AVCodecContext *avctx,
     int i, t, ret;
     uint8_t *swbuf;
 
-    swbuf = av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    swbuf = av_malloc(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!swbuf) {
         av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n");
         return AVERROR(ENOMEM);
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 50311dee68..2f0997a1a4 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -59,14 +59,14 @@ static void *avformat_mutex;
 void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
 {
     void **p = ptr;
-    if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
+    if (min_size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
         av_freep(p);
         *size = 0;
         return;
     }
-    av_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    av_fast_malloc(p, size, min_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (*size)
-        memset((uint8_t *)*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+        memset((uint8_t *)*p + min_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 }
 
 /* encoder management */
@@ -1324,7 +1324,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
 
 int ff_alloc_packet(AVPacket *avpkt, int size)
 {
-    if (size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE)
+    if (size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
         return AVERROR(EINVAL);
 
     if (avpkt->data) {
diff --git a/libavcodec/utvideodec.c b/libavcodec/utvideodec.c
index 0ccd53a937..30ca4d2164 100644
--- a/libavcodec/utvideodec.c
+++ b/libavcodec/utvideodec.c
@@ -142,7 +142,7 @@ static int decode_plane(UtvideoContext *c, int plane_no,
 
         memcpy(c->slice_bits, src + slice_data_start + c->slices * 4,
                slice_size);
-        memset(c->slice_bits + slice_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+        memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
         c->bdsp.bswap_buf((uint32_t *) c->slice_bits,
                           (uint32_t *) c->slice_bits,
                           (slice_data_end - slice_data_start + 3) >> 2);
@@ -388,7 +388,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
     }
 
     av_fast_malloc(&c->slice_bits, &c->slice_bits_size,
-                   max_slice_size + FF_INPUT_BUFFER_PADDING_SIZE);
+                   max_slice_size + AV_INPUT_BUFFER_PADDING_SIZE);
 
     if (!c->slice_bits) {
         av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n");
diff --git a/libavcodec/utvideoenc.c b/libavcodec/utvideoenc.c
index 6e9916cd9f..9af0f66a71 100644
--- a/libavcodec/utvideoenc.c
+++ b/libavcodec/utvideoenc.c
@@ -157,7 +157,7 @@ static av_cold int utvideo_encode_init(AVCodecContext *avctx)
     avctx->extradata_size = 16;
 
     avctx->extradata = av_mallocz(avctx->extradata_size +
-                                  FF_INPUT_BUFFER_PADDING_SIZE);
+                                  AV_INPUT_BUFFER_PADDING_SIZE);
 
     if (!avctx->extradata) {
         av_log(avctx, AV_LOG_ERROR, "Could not allocate extradata.\n");
@@ -167,7 +167,7 @@ static av_cold int utvideo_encode_init(AVCodecContext *avctx)
 
     for (i = 0; i < c->planes; i++) {
         c->slice_buffer[i] = av_malloc(c->slice_stride * (avctx->height + 2) +
-                                       FF_INPUT_BUFFER_PADDING_SIZE);
+                                       AV_INPUT_BUFFER_PADDING_SIZE);
         if (!c->slice_buffer[i]) {
             av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer 1.\n");
             utvideo_encode_close(avctx);
@@ -547,7 +547,7 @@ static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     bytestream2_init_writer(&pb, dst, pkt->size);
 
     av_fast_malloc(&c->slice_bits, &c->slice_bits_size,
-                   width * height + FF_INPUT_BUFFER_PADDING_SIZE);
+                   width * height + AV_INPUT_BUFFER_PADDING_SIZE);
 
     if (!c->slice_bits) {
         av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer 2.\n");
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index 67e1d7454f..8e8411289e 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -461,7 +461,7 @@ static av_cold int vc1_decode_init(AVCodecContext *avctx)
             return -1;
         }
 
-        buf2  = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+        buf2  = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
         start = find_next_marker(start, end); // in WVC1 extradata first byte is its size, but can be 0 in mkv
         next  = start;
         for (; next < end; start = next) {
@@ -612,7 +612,7 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data,
     //for advanced profile we may need to parse and unescape data
     if (avctx->codec_id == AV_CODEC_ID_VC1 || avctx->codec_id == AV_CODEC_ID_VC1IMAGE) {
         int buf_size2 = 0;
-        buf2 = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+        buf2 = av_mallocz(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
 
         if (IS_MARKER(AV_RB32(buf))) { /* frame starts with marker and needs to be parsed */
             const uint8_t *start, *end, *next;
@@ -635,7 +635,7 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data,
                     if (!tmp)
                         goto err;
                     slices = tmp;
-                    slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+                    slices[n_slices].buf = av_mallocz(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
                     if (!slices[n_slices].buf)
                         goto err;
                     buf_size3 = vc1_unescape_buffer(start + 4, size,
@@ -660,7 +660,7 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data,
                     if (!tmp)
                         goto err;
                     slices = tmp;
-                    slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+                    slices[n_slices].buf = av_mallocz(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
                     if (!slices[n_slices].buf)
                         goto err;
                     buf_size3 = vc1_unescape_buffer(start + 4, size,
@@ -686,7 +686,7 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data,
                 if (!tmp)
                     goto err;
                 slices = tmp;
-                slices[n_slices].buf = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+                slices[n_slices].buf = av_mallocz(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
                 if (!slices[n_slices].buf)
                     goto err;
                 buf_size3 = vc1_unescape_buffer(divider + 4, buf + buf_size - divider - 4, slices[n_slices].buf);
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index c8efec2d9c..599e36ccc5 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -446,7 +446,7 @@ static float wv_get_value_float(WavpackFrameContext *s, uint32_t *crc, int S)
         const int max_bits  = 1 + 23 + 8 + 1;
         const int left_bits = get_bits_left(&s->gb_extra_bits);
 
-        if (left_bits + 8 * FF_INPUT_BUFFER_PADDING_SIZE < max_bits)
+        if (left_bits + 8 * AV_INPUT_BUFFER_PADDING_SIZE < max_bits)
             return 0.0;
     }
 
diff --git a/libavcodec/wma.h b/libavcodec/wma.h
index 06386efd2f..c954d71e28 100644
--- a/libavcodec/wma.h
+++ b/libavcodec/wma.h
@@ -120,7 +120,7 @@ typedef struct WMACodecContext {
     /* output buffer for one frame and the last for IMDCT windowing */
     DECLARE_ALIGNED(32, float, frame_out)[MAX_CHANNELS][BLOCK_MAX_SIZE * 2];
     /* last frame info */
-    uint8_t last_superframe[MAX_CODED_SUPERFRAME_SIZE + FF_INPUT_BUFFER_PADDING_SIZE]; /* padding added */
+    uint8_t last_superframe[MAX_CODED_SUPERFRAME_SIZE + AV_INPUT_BUFFER_PADDING_SIZE]; /* padding added */
     int last_bitoffset;
     int last_superframe_len;
     float noise_table[NOISE_TAB_SIZE];
diff --git a/libavcodec/wmadec.c b/libavcodec/wmadec.c
index eb7dfd1a50..b79dd2a101 100644
--- a/libavcodec/wmadec.c
+++ b/libavcodec/wmadec.c
@@ -853,7 +853,7 @@ static int wma_decode_superframe(AVCodecContext *avctx, void *data,
             }
             if (len > 0)
                 *q++ = (get_bits) (&s->gb, len) << (8 - len);
-            memset(q, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+            memset(q, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
             /* XXX: bit_offset bits into last frame */
             init_get_bits(&s->gb, s->last_superframe,
diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c
index 6a53b390e7..e752bd02ea 100644
--- a/libavcodec/wmalosslessdec.c
+++ b/libavcodec/wmalosslessdec.c
@@ -69,7 +69,7 @@ typedef struct WmallDecodeCtx {
     /* generic decoder variables */
     AVCodecContext  *avctx;
     AVFrame         *frame;
-    uint8_t         frame_data[MAX_FRAMESIZE + FF_INPUT_BUFFER_PADDING_SIZE];  ///< compressed frame data
+    uint8_t         frame_data[MAX_FRAMESIZE + AV_INPUT_BUFFER_PADDING_SIZE];  ///< compressed frame data
     PutBitContext   pb;                             ///< context for filling the frame_data buffer
 
     /* frame size dependent frame information (set during initialization) */
diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c
index e69d973491..46710c54ae 100644
--- a/libavcodec/wmaprodec.c
+++ b/libavcodec/wmaprodec.c
@@ -173,7 +173,7 @@ typedef struct WMAProDecodeCtx {
     AVCodecContext*  avctx;                         ///< codec context for av_log
     AVFloatDSPContext fdsp;
     uint8_t          frame_data[MAX_FRAMESIZE +
-                      FF_INPUT_BUFFER_PADDING_SIZE];///< compressed frame data
+                      AV_INPUT_BUFFER_PADDING_SIZE];///< compressed frame data
     PutBitContext    pb;                            ///< context for filling the frame_data buffer
     FFTContext       mdct_ctx[WMAPRO_BLOCK_SIZES];  ///< MDCT context per block size
     DECLARE_ALIGNED(32, float, tmp)[WMAPRO_BLOCK_MAX_SIZE]; ///< IMDCT output buffer
diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c
index 8e9f038788..92261b9a77 100644
--- a/libavcodec/wmavoice.c
+++ b/libavcodec/wmavoice.c
@@ -205,7 +205,7 @@ typedef struct WMAVoiceContext {
                                   ///< to #wmavoice_decode_packet() (since
                                   ///< they're part of the previous superframe)
 
-    uint8_t sframe_cache[SFRAME_CACHE_MAXSIZE + FF_INPUT_BUFFER_PADDING_SIZE];
+    uint8_t sframe_cache[SFRAME_CACHE_MAXSIZE + AV_INPUT_BUFFER_PADDING_SIZE];
                                   ///< cache for superframe data split over
                                   ///< multiple packets
     int sframe_cache_size;        ///< set to >0 if we have data from an
diff --git a/libavcodec/wnv1.c b/libavcodec/wnv1.c
index 05dc9a534c..d0304c97ad 100644
--- a/libavcodec/wnv1.c
+++ b/libavcodec/wnv1.c
@@ -75,7 +75,7 @@ static int decode_frame(AVCodecContext *avctx,
         return AVERROR_INVALIDDATA;
     }
 
-    rbuf = av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    rbuf = av_malloc(buf_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!rbuf) {
         av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer\n");
         return AVERROR(ENOMEM);
diff --git a/libavdevice/vfwcap.c b/libavdevice/vfwcap.c
index 5e2ba844ef..154f550b00 100644
--- a/libavdevice/vfwcap.c
+++ b/libavdevice/vfwcap.c
@@ -392,7 +392,7 @@ static int vfw_read_header(AVFormatContext *s)
         codec->codec_id = AV_CODEC_ID_RAWVIDEO;
         if(biCompression == BI_RGB) {
             codec->bits_per_coded_sample = biBitCount;
-            codec->extradata = av_malloc(9 + FF_INPUT_BUFFER_PADDING_SIZE);
+            codec->extradata = av_malloc(9 + AV_INPUT_BUFFER_PADDING_SIZE);
             if (codec->extradata) {
                 codec->extradata_size = 9;
                 memcpy(codec->extradata, "BottomUp", 9);
diff --git a/libavdevice/xcbgrab.c b/libavdevice/xcbgrab.c
index b539388429..356518ae5f 100644
--- a/libavdevice/xcbgrab.c
+++ b/libavdevice/xcbgrab.c
@@ -227,7 +227,7 @@ static int xcbgrab_frame_shm(AVFormatContext *s, AVPacket *pkt)
     xcb_shm_get_image_reply_t *img;
     xcb_drawable_t drawable = c->screen->root;
     uint8_t *data;
-    int size = c->frame_size + FF_INPUT_BUFFER_PADDING_SIZE;
+    int size = c->frame_size + AV_INPUT_BUFFER_PADDING_SIZE;
     int id   = shmget(IPC_PRIVATE, size, IPC_CREAT | 0777);
     xcb_generic_error_t *e = NULL;
 
diff --git a/libavformat/4xm.c b/libavformat/4xm.c
index 6253ffb58e..2952a2172a 100644
--- a/libavformat/4xm.c
+++ b/libavformat/4xm.c
@@ -111,7 +111,7 @@ static int parse_vtrk(AVFormatContext *s,
     st->codec->codec_type     = AVMEDIA_TYPE_VIDEO;
     st->codec->codec_id       = AV_CODEC_ID_4XM;
 
-    st->codec->extradata      = av_mallocz(4 + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata      = av_mallocz(4 + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata)
         return AVERROR(ENOMEM);
     st->codec->extradata_size = 4;
diff --git a/libavformat/adxdec.c b/libavformat/adxdec.c
index 9d3ebe398b..bce0493b79 100644
--- a/libavformat/adxdec.c
+++ b/libavformat/adxdec.c
@@ -76,7 +76,7 @@ static int adx_read_header(AVFormatContext *s)
     c->header_size = avio_rb16(s->pb) + 4;
     avio_seek(s->pb, -4, SEEK_CUR);
 
-    avctx->extradata = av_mallocz(c->header_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    avctx->extradata = av_mallocz(c->header_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!avctx->extradata)
         return AVERROR(ENOMEM);
     if (avio_read(s->pb, avctx->extradata, c->header_size) < c->header_size) {
diff --git a/libavformat/aiffdec.c b/libavformat/aiffdec.c
index add843b267..04cca5d451 100644
--- a/libavformat/aiffdec.c
+++ b/libavformat/aiffdec.c
@@ -259,7 +259,7 @@ static int aiff_read_header(AVFormatContext *s)
         case MKTAG('w', 'a', 'v', 'e'):
             if ((uint64_t)size > (1<<30))
                 return -1;
-            st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
+            st->codec->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!st->codec->extradata)
                 return AVERROR(ENOMEM);
             st->codec->extradata_size = size;
diff --git a/libavformat/anm.c b/libavformat/anm.c
index 6b8e3066f3..69a13744f1 100644
--- a/libavformat/anm.c
+++ b/libavformat/anm.c
@@ -133,7 +133,7 @@ static int read_header(AVFormatContext *s)
 
     /* color cycling and palette data */
     st->codec->extradata_size = 16*8 + 4*256;
-    st->codec->extradata      = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata      = av_mallocz(st->codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata) {
         return AVERROR(ENOMEM);
     }
diff --git a/libavformat/apc.c b/libavformat/apc.c
index 0b6c5836c1..58fd9f8771 100644
--- a/libavformat/apc.c
+++ b/libavformat/apc.c
@@ -53,7 +53,7 @@ static int apc_read_header(AVFormatContext *s)
 
     st->codec->extradata_size = 2 * 4;
     st->codec->extradata = av_malloc(st->codec->extradata_size +
-                                     FF_INPUT_BUFFER_PADDING_SIZE);
+                                     AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata)
         return AVERROR(ENOMEM);
 
diff --git a/libavformat/apetag.c b/libavformat/apetag.c
index 4d65301697..5591555377 100644
--- a/libavformat/apetag.c
+++ b/libavformat/apetag.c
@@ -57,7 +57,7 @@ static int ape_tag_read_field(AVFormatContext *s)
         av_log(s, AV_LOG_WARNING, "Invalid APE tag key '%s'.\n", key);
         return -1;
     }
-    if (size > INT32_MAX - FF_INPUT_BUFFER_PADDING_SIZE) {
+    if (size > INT32_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
         av_log(s, AV_LOG_ERROR, "APE tag size too large.\n");
         return AVERROR_INVALIDDATA;
     }
@@ -94,7 +94,7 @@ static int ape_tag_read_field(AVFormatContext *s)
             st->attached_pic.stream_index = st->index;
             st->attached_pic.flags       |= AV_PKT_FLAG_KEY;
         } else {
-            st->codec->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
+            st->codec->extradata = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!st->codec->extradata)
                 return AVERROR(ENOMEM);
             if (avio_read(pb, st->codec->extradata, size) != size) {
diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 642ccb2ca3..9c746af075 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -674,12 +674,12 @@ static int parse_video_info(AVIOContext *pb, AVStream *st)
         int ret;
         st->codec->extradata_size  = size - BMP_HEADER_SIZE;
         if (!(st->codec->extradata = av_malloc(st->codec->extradata_size +
-                                               FF_INPUT_BUFFER_PADDING_SIZE))) {
+                                               AV_INPUT_BUFFER_PADDING_SIZE))) {
             st->codec->extradata_size = 0;
             return AVERROR(ENOMEM);
         }
         memset(st->codec->extradata + st->codec->extradata_size , 0,
-               FF_INPUT_BUFFER_PADDING_SIZE);
+               AV_INPUT_BUFFER_PADDING_SIZE);
         if ((ret = avio_read(pb, st->codec->extradata,
                              st->codec->extradata_size)) < 0)
             return ret;
diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 86397653bc..564318ee0c 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -625,7 +625,7 @@ static int avi_read_header(AVFormatContext *s)
                     if (size > 10 * 4 && size < (1 << 30)) {
                         st->codec->extradata_size = size - 10 * 4;
                         st->codec->extradata      = av_malloc(st->codec->extradata_size +
-                                                              FF_INPUT_BUFFER_PADDING_SIZE);
+                                                              AV_INPUT_BUFFER_PADDING_SIZE);
                         if (!st->codec->extradata) {
                             st->codec->extradata_size = 0;
                             return AVERROR(ENOMEM);
@@ -696,7 +696,7 @@ static int avi_read_header(AVFormatContext *s)
                         st->codec->extradata_size += 9;
                         if ((ret = av_reallocp(&st->codec->extradata,
                                                st->codec->extradata_size +
-                                               FF_INPUT_BUFFER_PADDING_SIZE)) < 0) {
+                                               AV_INPUT_BUFFER_PADDING_SIZE)) < 0) {
                             st->codec->extradata_size = 0;
                             return ret;
                         } else
diff --git a/libavformat/avio.h b/libavformat/avio.h
index a1497d9d65..889fdcf1e7 100644
--- a/libavformat/avio.h
+++ b/libavformat/avio.h
@@ -396,7 +396,7 @@ int avio_open_dyn_buf(AVIOContext **s);
 /**
  * Return the written size and a pointer to the buffer. The buffer
  * must be freed with av_free().
- * Padding of FF_INPUT_BUFFER_PADDING_SIZE is added to the buffer.
+ * Padding of AV_INPUT_BUFFER_PADDING_SIZE is added to the buffer.
  *
  * @param s IO context
  * @param pbuffer pointer to a byte buffer
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 6716772464..bb575ed8a3 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -983,7 +983,7 @@ int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
 {
     DynBuffer *d;
     int size;
-    static const char padbuf[FF_INPUT_BUFFER_PADDING_SIZE] = {0};
+    static const char padbuf[AV_INPUT_BUFFER_PADDING_SIZE] = {0};
     int padding = 0;
 
     if (!s) {
@@ -994,7 +994,7 @@ int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
     /* don't attempt to pad fixed-size packet buffers */
     if (!s->max_packet_size) {
         avio_write(s, padbuf, sizeof(padbuf));
-        padding = FF_INPUT_BUFFER_PADDING_SIZE;
+        padding = AV_INPUT_BUFFER_PADDING_SIZE;
     }
 
     avio_flush(s);
diff --git a/libavformat/bink.c b/libavformat/bink.c
index 3224790485..608de245d3 100644
--- a/libavformat/bink.c
+++ b/libavformat/bink.c
@@ -120,7 +120,7 @@ static int read_header(AVFormatContext *s)
 
     vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
     vst->codec->codec_id   = AV_CODEC_ID_BINKVIDEO;
-    vst->codec->extradata  = av_mallocz(4 + FF_INPUT_BUFFER_PADDING_SIZE);
+    vst->codec->extradata  = av_mallocz(4 + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!vst->codec->extradata)
         return AVERROR(ENOMEM);
     vst->codec->extradata_size = 4;
@@ -156,7 +156,7 @@ static int read_header(AVFormatContext *s)
                 ast->codec->channels       = 1;
                 ast->codec->channel_layout = AV_CH_LAYOUT_MONO;
             }
-            ast->codec->extradata = av_mallocz(4 + FF_INPUT_BUFFER_PADDING_SIZE);
+            ast->codec->extradata = av_mallocz(4 + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!ast->codec->extradata)
                 return AVERROR(ENOMEM);
             ast->codec->extradata_size = 4;
diff --git a/libavformat/cafdec.c b/libavformat/cafdec.c
index a37ceaaebd..36c39678d1 100644
--- a/libavformat/cafdec.c
+++ b/libavformat/cafdec.c
@@ -101,7 +101,7 @@ static int read_kuki_chunk(AVFormatContext *s, int64_t size)
     AVIOContext *pb = s->pb;
     AVStream *st      = s->streams[0];
 
-    if (size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE)
+    if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
         return -1;
 
     if (st->codec->codec_id == AV_CODEC_ID_AAC) {
@@ -131,7 +131,7 @@ static int read_kuki_chunk(AVFormatContext *s, int64_t size)
         }
         avio_read(pb, preamble, ALAC_PREAMBLE);
 
-        st->codec->extradata = av_mallocz(ALAC_HEADER + FF_INPUT_BUFFER_PADDING_SIZE);
+        st->codec->extradata = av_mallocz(ALAC_HEADER + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!st->codec->extradata)
             return AVERROR(ENOMEM);
 
@@ -157,7 +157,7 @@ static int read_kuki_chunk(AVFormatContext *s, int64_t size)
         }
         st->codec->extradata_size = ALAC_HEADER;
     } else {
-        st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
+        st->codec->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!st->codec->extradata)
             return AVERROR(ENOMEM);
         avio_read(pb, st->codec->extradata, size);
diff --git a/libavformat/flacdec.c b/libavformat/flacdec.c
index 8abdd9d5b4..494bb095cc 100644
--- a/libavformat/flacdec.c
+++ b/libavformat/flacdec.c
@@ -58,7 +58,7 @@ static int flac_read_header(AVFormatContext *s)
         case FLAC_METADATA_TYPE_CUESHEET:
         case FLAC_METADATA_TYPE_PICTURE:
         case FLAC_METADATA_TYPE_VORBIS_COMMENT:
-            buffer = av_mallocz(metadata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+            buffer = av_mallocz(metadata_size + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!buffer) {
                 return AVERROR(ENOMEM);
             }
diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index 3b0370c950..2375eb1a1f 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -592,7 +592,7 @@ static int flv_read_close(AVFormatContext *s)
 static int flv_get_extradata(AVFormatContext *s, AVStream *st, int size)
 {
     av_free(st->codec->extradata);
-    st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata)
         return AVERROR(ENOMEM);
     st->codec->extradata_size = size;
@@ -605,7 +605,7 @@ static int flv_queue_extradata(FLVContext *flv, AVIOContext *pb, int stream,
 {
     av_free(flv->new_extradata[stream]);
     flv->new_extradata[stream] = av_mallocz(size +
-                                            FF_INPUT_BUFFER_PADDING_SIZE);
+                                            AV_INPUT_BUFFER_PADDING_SIZE);
     if (!flv->new_extradata[stream])
         return AVERROR(ENOMEM);
     flv->new_extradata_size[stream] = size;
diff --git a/libavformat/hevc.c b/libavformat/hevc.c
index 26db3b101f..e59d6a8886 100644
--- a/libavformat/hevc.c
+++ b/libavformat/hevc.c
@@ -636,7 +636,7 @@ static uint8_t *nal_unit_extract_rbsp(const uint8_t *src, uint32_t src_len,
     uint8_t *dst;
     uint32_t i, len;
 
-    dst = av_malloc(src_len + FF_INPUT_BUFFER_PADDING_SIZE);
+    dst = av_malloc(src_len + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!dst)
         return NULL;
 
diff --git a/libavformat/id3v2.c b/libavformat/id3v2.c
index 799eafee7c..d63d5a1171 100644
--- a/libavformat/id3v2.c
+++ b/libavformat/id3v2.c
@@ -495,10 +495,10 @@ static void read_apic(AVFormatContext *s, AVIOContext *pb, int taglen,
         goto fail;
     }
 
-    apic->buf = av_buffer_alloc(taglen + FF_INPUT_BUFFER_PADDING_SIZE);
+    apic->buf = av_buffer_alloc(taglen + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!apic->buf || avio_read(pb, apic->buf->data, taglen) != taglen)
         goto fail;
-    memset(apic->buf->data + taglen, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(apic->buf->data + taglen, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     new_extra->tag  = "APIC";
     new_extra->data = apic;
@@ -772,7 +772,7 @@ int ff_id3v2_parse_apic(AVFormatContext *s, ID3v2ExtraMeta **extra_meta)
         av_init_packet(&st->attached_pic);
         st->attached_pic.buf          = apic->buf;
         st->attached_pic.data         = apic->buf->data;
-        st->attached_pic.size         = apic->buf->size - FF_INPUT_BUFFER_PADDING_SIZE;
+        st->attached_pic.size         = apic->buf->size - AV_INPUT_BUFFER_PADDING_SIZE;
         st->attached_pic.stream_index = st->index;
         st->attached_pic.flags       |= AV_PKT_FLAG_KEY;
 
diff --git a/libavformat/isom.c b/libavformat/isom.c
index b4001772db..0582cfdac4 100644
--- a/libavformat/isom.c
+++ b/libavformat/isom.c
@@ -454,7 +454,7 @@ int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext
         if (!len || (uint64_t)len > (1<<30))
             return -1;
         av_free(st->codec->extradata);
-        st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
+        st->codec->extradata = av_mallocz(len + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!st->codec->extradata)
             return AVERROR(ENOMEM);
         avio_read(pb, st->codec->extradata, len);
diff --git a/libavformat/jvdec.c b/libavformat/jvdec.c
index 8aebbf4de8..1b1c5428bf 100644
--- a/libavformat/jvdec.c
+++ b/libavformat/jvdec.c
@@ -196,7 +196,7 @@ static int read_packet(AVFormatContext *s, AVPacket *pkt)
                     return ret;
                 if (ret < size) {
                     memset(pkt->data + JV_PREAMBLE_SIZE + ret, 0,
-                           FF_INPUT_BUFFER_PADDING_SIZE);
+                           AV_INPUT_BUFFER_PADDING_SIZE);
                     pkt->flags |= AV_PKT_FLAG_CORRUPT;
                 }
                 pkt->size         = ret + JV_PREAMBLE_SIZE;
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 0425d24dc4..3556b14537 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -747,7 +747,7 @@ static int ebml_read_ascii(AVIOContext *pb, int size, char **str)
 static int ebml_read_binary(AVIOContext *pb, int length, EbmlBin *bin)
 {
     av_free(bin->data);
-    if (!(bin->data = av_mallocz(length + FF_INPUT_BUFFER_PADDING_SIZE)))
+    if (!(bin->data = av_mallocz(length + AV_INPUT_BUFFER_PADDING_SIZE)))
         return AVERROR(ENOMEM);
 
     bin->size = length;
@@ -1205,7 +1205,7 @@ static void matroska_fix_ass_packet(MatroskaDemuxContext *matroska,
         es     = ec / 100;
         ec    -= 100 * es;
         *ptr++ = '\0';
-        len    = 50 + end - ptr + FF_INPUT_BUFFER_PADDING_SIZE;
+        len    = 50 + end - ptr + AV_INPUT_BUFFER_PADDING_SIZE;
         if (!(line = av_buffer_alloc(len)))
             return;
         snprintf(line->data, len,
@@ -1644,7 +1644,7 @@ static int matroska_parse_tracks(AVFormatContext *s)
         } else if (codec_id == AV_CODEC_ID_AAC && !track->codec_priv.size) {
             int profile = matroska_aac_profile(track->codec_id);
             int sri     = matroska_aac_sri(track->audio.samplerate);
-            extradata   = av_mallocz(5 + FF_INPUT_BUFFER_PADDING_SIZE);
+            extradata   = av_mallocz(5 + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!extradata)
                 return AVERROR(ENOMEM);
             extradata[0] = (profile << 3) | ((sri & 0x0E) >> 1);
@@ -1663,7 +1663,7 @@ static int matroska_parse_tracks(AVFormatContext *s)
              * decoder expects manually. */
             extradata_size = 12 + track->codec_priv.size;
             extradata      = av_mallocz(extradata_size +
-                                        FF_INPUT_BUFFER_PADDING_SIZE);
+                                        AV_INPUT_BUFFER_PADDING_SIZE);
             if (!extradata)
                 return AVERROR(ENOMEM);
             AV_WB32(extradata, extradata_size);
@@ -1768,7 +1768,7 @@ static int matroska_parse_tracks(AVFormatContext *s)
                 st->codec->extradata_size = extradata_size;
             } else if (track->codec_priv.data && track->codec_priv.size > 0) {
                 st->codec->extradata = av_mallocz(track->codec_priv.size +
-                                                  FF_INPUT_BUFFER_PADDING_SIZE);
+                                                  AV_INPUT_BUFFER_PADDING_SIZE);
                 if (!st->codec->extradata)
                     return AVERROR(ENOMEM);
                 st->codec->extradata_size = track->codec_priv.size;
diff --git a/libavformat/mov.c b/libavformat/mov.c
index b78a1c39e8..8bf1b90c97 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -963,7 +963,7 @@ static int mov_read_smi(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     // currently SVQ3 decoder expect full STSD header - so let's fake it
     // this should be fixed and just SMI header should be passed
     av_free(st->codec->extradata);
-    st->codec->extradata = av_mallocz(atom.size + 0x5a + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata = av_mallocz(atom.size + 0x5a + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata)
         return AVERROR(ENOMEM);
     st->codec->extradata_size = 0x5a + atom.size;
@@ -1127,7 +1127,7 @@ static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     if (c->fc->nb_streams < 1) // will happen with jp2 files
         return 0;
     st= c->fc->streams[c->fc->nb_streams-1];
-    size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
+    size= (uint64_t)st->codec->extradata_size + atom.size + 8 + AV_INPUT_BUFFER_PADDING_SIZE;
     if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
         return AVERROR_INVALIDDATA;
     if ((err = av_reallocp(&st->codec->extradata, size)) < 0) {
@@ -1135,7 +1135,7 @@ static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         return err;
     }
     buf = st->codec->extradata + st->codec->extradata_size;
-    st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
+    st->codec->extradata_size= size - AV_INPUT_BUFFER_PADDING_SIZE;
     AV_WB32(       buf    , atom.size + 8);
     AV_WL32(       buf + 4, atom.type);
 
@@ -1161,7 +1161,7 @@ static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     if (st->codec->codec_id == AV_CODEC_ID_QDM2 || st->codec->codec_id == AV_CODEC_ID_QDMC) {
         // pass all frma atom to codec, needed at least for QDMC and QDM2
         av_free(st->codec->extradata);
-        st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
+        st->codec->extradata = av_mallocz(atom.size + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!st->codec->extradata)
             return AVERROR(ENOMEM);
         st->codec->extradata_size = atom.size;
@@ -1203,7 +1203,7 @@ static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
             return mov_read_default(c, pb, atom);
     }
     av_free(st->codec->extradata);
-    st->codec->extradata = av_mallocz(atom.size + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata = av_mallocz(atom.size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata)
         return AVERROR(ENOMEM);
     st->codec->extradata_size = atom.size;
@@ -1233,7 +1233,7 @@ static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         return 0;
 
     av_free(st->codec->extradata);
-    st->codec->extradata = av_mallocz(atom.size - 7 + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata = av_mallocz(atom.size - 7 + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata)
         return AVERROR(ENOMEM);
     st->codec->extradata_size = atom.size - 7;
@@ -1266,7 +1266,7 @@ static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         return AVERROR_INVALIDDATA;
 
     av_free(st->codec->extradata);
-    st->codec->extradata = av_mallocz(atom.size - 40 + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata = av_mallocz(atom.size - 40 + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata)
         return AVERROR(ENOMEM);
     st->codec->extradata_size = atom.size - 40;
@@ -1629,7 +1629,7 @@ static int mov_rewrite_dvd_sub_extradata(AVStream *st)
 
     av_freep(&st->codec->extradata);
     st->codec->extradata_size = 0;
-    st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata = av_mallocz(strlen(buf) + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata)
         return AVERROR(ENOMEM);
     st->codec->extradata_size = strlen(buf);
@@ -1646,7 +1646,7 @@ static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
 
     if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
         st->codec->extradata_size = size;
-        st->codec->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
+        st->codec->extradata = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!st->codec->extradata)
             return AVERROR(ENOMEM);
         ret = ffio_read_size(pb, st->codec->extradata, size);
@@ -2003,7 +2003,7 @@ static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 
     num_bytes = (entries*field_size+4)>>3;
 
-    buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
+    buf = av_malloc(num_bytes+AV_INPUT_BUFFER_PADDING_SIZE);
     if (!buf) {
         av_freep(&sc->sample_sizes);
         return AVERROR(ENOMEM);
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index d8255c8fa1..158dfa8b67 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -455,7 +455,7 @@ static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
                "dvc1 atom. Set the delay_moov flag to fix this.\n");
     }
 
-    unescaped = av_mallocz(track->vos_len + FF_INPUT_BUFFER_PADDING_SIZE);
+    unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!unescaped)
         return AVERROR(ENOMEM);
     start = find_next_marker(track->vos_data, end);
diff --git a/libavformat/mpc.c b/libavformat/mpc.c
index 1c8a295863..ed8d73f7b0 100644
--- a/libavformat/mpc.c
+++ b/libavformat/mpc.c
@@ -96,7 +96,7 @@ static int mpc_read_header(AVFormatContext *s)
     st->codec->bits_per_coded_sample = 16;
 
     st->codec->extradata_size = 16;
-    st->codec->extradata = av_mallocz(st->codec->extradata_size+FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata = av_mallocz(st->codec->extradata_size+AV_INPUT_BUFFER_PADDING_SIZE);
     avio_read(s->pb, st->codec->extradata, 16);
     st->codec->sample_rate = mpc_rate[st->codec->extradata[2] & 3];
     avpriv_set_pts_info(st, 32, MPC_FRAMESIZE, st->codec->sample_rate);
diff --git a/libavformat/mpc8.c b/libavformat/mpc8.c
index 07f12d291c..3bc868e502 100644
--- a/libavformat/mpc8.c
+++ b/libavformat/mpc8.c
@@ -154,7 +154,7 @@ static void mpc8_parse_seektable(AVFormatContext *s, int64_t off)
         av_log(s, AV_LOG_ERROR, "Bad seek table size\n");
         return;
     }
-    if(!(buf = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE)))
+    if(!(buf = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE)))
         return;
     avio_read(s->pb, buf, size);
     init_get_bits(&gb, buf, size * 8);
@@ -242,7 +242,7 @@ static int mpc8_read_header(AVFormatContext *s)
     st->codec->bits_per_coded_sample = 16;
 
     st->codec->extradata_size = 2;
-    st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata = av_mallocz(st->codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
     avio_read(pb, st->codec->extradata, st->codec->extradata_size);
 
     st->codec->channels = (st->codec->extradata[1] >> 4) + 1;
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index f96d9f04a3..3a27343cf0 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -711,7 +711,7 @@ static void new_pes_packet(PESContext *pes, AVPacket *pkt)
         av_log(pes->stream, AV_LOG_WARNING, "PES packet size mismatch\n");
         pes->flags |= AV_PKT_FLAG_CORRUPT;
     }
-    memset(pkt->data + pkt->size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     // Separate out the AC3 substream from an HDMV combined TrueHD/AC3 PID
     if (pes->sub_st && pes->stream_type == 0x83 && pes->extended_stream_id == 0x76)
@@ -864,7 +864,7 @@ static int mpegts_push_data(MpegTSFilter *filter,
 
                     /* allocate pes buffer */
                     pes->buffer = av_buffer_alloc(pes->total_size +
-                                                  FF_INPUT_BUFFER_PADDING_SIZE);
+                                                  AV_INPUT_BUFFER_PADDING_SIZE);
                     if (!pes->buffer)
                         return AVERROR(ENOMEM);
 
@@ -971,7 +971,7 @@ skip:
                     new_pes_packet(pes, ts->pkt);
                     pes->total_size = MAX_PES_PAYLOAD;
                     pes->buffer = av_buffer_alloc(pes->total_size +
-                                                  FF_INPUT_BUFFER_PADDING_SIZE);
+                                                  AV_INPUT_BUFFER_PADDING_SIZE);
                     if (!pes->buffer)
                         return AVERROR(ENOMEM);
                     ts->stop_parse = 1;
@@ -1436,7 +1436,7 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
                 memcmp(st->codec->extradata, *pp, 4))
                 avpriv_request_sample(fc, "DVB sub with multiple IDs");
         } else {
-            st->codec->extradata = av_malloc(4 + FF_INPUT_BUFFER_PADDING_SIZE);
+            st->codec->extradata = av_malloc(4 + AV_INPUT_BUFFER_PADDING_SIZE);
             if (st->codec->extradata) {
                 st->codec->extradata_size = 4;
                 memcpy(st->codec->extradata, *pp, 4);
@@ -1482,7 +1482,7 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
             ext_desc_tag == 0x80) { /* User defined (provisional Opus) */
             if (!st->codec->extradata) {
                 st->codec->extradata = av_mallocz(sizeof(opus_default_extradata) +
-                                                  FF_INPUT_BUFFER_PADDING_SIZE);
+                                                  AV_INPUT_BUFFER_PADDING_SIZE);
                 if (!st->codec->extradata)
                     return AVERROR(ENOMEM);
 
@@ -1956,7 +1956,7 @@ static void finished_reading_packet(AVFormatContext *s, int raw_packet_size)
 static int handle_packets(MpegTSContext *ts, int nb_packets)
 {
     AVFormatContext *s = ts->stream;
-    uint8_t packet[TS_PACKET_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
+    uint8_t packet[TS_PACKET_SIZE + AV_INPUT_BUFFER_PADDING_SIZE];
     const uint8_t *data;
     int packet_num, ret = 0;
 
@@ -1979,7 +1979,7 @@ static int handle_packets(MpegTSContext *ts, int nb_packets)
 
     ts->stop_parse = 0;
     packet_num = 0;
-    memset(packet + TS_PACKET_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(packet + TS_PACKET_SIZE, 0, AV_INPUT_BUFFER_PADDING_SIZE);
     for (;;) {
         if (ts->stop_parse > 0)
             break;
diff --git a/libavformat/mvi.c b/libavformat/mvi.c
index 03a1f406cf..4abd1c670f 100644
--- a/libavformat/mvi.c
+++ b/libavformat/mvi.c
@@ -55,7 +55,7 @@ static int read_header(AVFormatContext *s)
         return AVERROR(ENOMEM);
 
     vst->codec->extradata_size = 2;
-    vst->codec->extradata = av_mallocz(2 + FF_INPUT_BUFFER_PADDING_SIZE);
+    vst->codec->extradata = av_mallocz(2 + AV_INPUT_BUFFER_PADDING_SIZE);
 
     version                  = avio_r8(pb);
     vst->codec->extradata[0] = avio_r8(pb);
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index 25545dc603..8678dc161b 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -895,7 +895,7 @@ static int mxf_read_generic_descriptor(void *arg, AVIOContext *pb, int tag, int
         if (IS_KLV_KEY(uid, mxf_sony_mpeg4_extradata)) {
             av_free(descriptor->extradata);
             descriptor->extradata_size = 0;
-            descriptor->extradata = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
+            descriptor->extradata = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!descriptor->extradata)
                 return AVERROR(ENOMEM);
             descriptor->extradata_size = size;
@@ -1653,7 +1653,7 @@ static int mxf_parse_structural_metadata(MXFContext *mxf)
             }
         }
         if (descriptor->extradata) {
-            st->codec->extradata = av_mallocz(descriptor->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+            st->codec->extradata = av_mallocz(descriptor->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
             if (st->codec->extradata) {
                 memcpy(st->codec->extradata, descriptor->extradata, descriptor->extradata_size);
                 st->codec->extradata_size = descriptor->extradata_size;
diff --git a/libavformat/mxg.c b/libavformat/mxg.c
index 1d1488c059..3cde2de1ff 100644
--- a/libavformat/mxg.c
+++ b/libavformat/mxg.c
@@ -110,7 +110,7 @@ static int mxg_update_cache(AVFormatContext *s, unsigned int cache_size)
     if (mxg->soi_ptr) soi_pos = mxg->soi_ptr - mxg->buffer;
     mxg->buffer = av_fast_realloc(mxg->buffer, &mxg->buffer_size,
                                   current_pos + cache_size +
-                                  FF_INPUT_BUFFER_PADDING_SIZE);
+                                  AV_INPUT_BUFFER_PADDING_SIZE);
     if (!mxg->buffer)
         return AVERROR(ENOMEM);
     mxg->buffer_ptr = mxg->buffer + current_pos;
diff --git a/libavformat/nutdec.c b/libavformat/nutdec.c
index 47f6e318b3..bf1ab7b933 100644
--- a/libavformat/nutdec.c
+++ b/libavformat/nutdec.c
@@ -408,7 +408,7 @@ static int decode_stream_header(NUTContext *nut)
     GET_V(st->codec->extradata_size, tmp < (1 << 30));
     if (st->codec->extradata_size) {
         st->codec->extradata = av_mallocz(st->codec->extradata_size +
-                                          FF_INPUT_BUFFER_PADDING_SIZE);
+                                          AV_INPUT_BUFFER_PADDING_SIZE);
         if (!st->codec->extradata)
             return AVERROR(ENOMEM);
         avio_read(bc, st->codec->extradata, st->codec->extradata_size);
diff --git a/libavformat/oggdec.c b/libavformat/oggdec.c
index f37c4af826..15526ffa01 100644
--- a/libavformat/oggdec.c
+++ b/libavformat/oggdec.c
@@ -74,7 +74,7 @@ static int ogg_save(AVFormatContext *s)
 
     for (i = 0; i < ogg->nstreams; i++) {
         struct ogg_stream *os = ogg->streams + i;
-        os->buf = av_mallocz(os->bufsize + FF_INPUT_BUFFER_PADDING_SIZE);
+        os->buf = av_mallocz(os->bufsize + AV_INPUT_BUFFER_PADDING_SIZE);
         memcpy(os->buf, ost->streams[i].buf, os->bufpos);
     }
 
@@ -172,7 +172,7 @@ static int ogg_new_stream(AVFormatContext *s, uint32_t serial, int new_avstream)
     os                = ogg->streams + idx;
     os->serial        = serial;
     os->bufsize       = DECODER_BUFFER_SIZE;
-    os->buf           = av_malloc(os->bufsize + FF_INPUT_BUFFER_PADDING_SIZE);
+    os->buf           = av_malloc(os->bufsize + AV_INPUT_BUFFER_PADDING_SIZE);
     os->header        = -1;
     os->start_granule = OGG_NOGRANULE_VALUE;
 
@@ -191,7 +191,7 @@ static int ogg_new_stream(AVFormatContext *s, uint32_t serial, int new_avstream)
 static int ogg_new_buf(struct ogg *ogg, int idx)
 {
     struct ogg_stream *os = ogg->streams + idx;
-    uint8_t *nb = av_malloc(os->bufsize + FF_INPUT_BUFFER_PADDING_SIZE);
+    uint8_t *nb = av_malloc(os->bufsize + AV_INPUT_BUFFER_PADDING_SIZE);
     int size = os->bufpos - os->pstart;
 
     if (!nb)
@@ -315,7 +315,7 @@ static int ogg_read_page(AVFormatContext *s, int *str)
     }
 
     if (os->bufsize - os->bufpos < size) {
-        uint8_t *nb = av_malloc((os->bufsize *= 2) + FF_INPUT_BUFFER_PADDING_SIZE);
+        uint8_t *nb = av_malloc((os->bufsize *= 2) + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!nb)
             return AVERROR(ENOMEM);
         memcpy(nb, os->buf, os->bufpos);
@@ -331,7 +331,7 @@ static int ogg_read_page(AVFormatContext *s, int *str)
     os->granule = gp;
     os->flags   = flags;
 
-    memset(os->buf + os->bufpos, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+    memset(os->buf + os->bufpos, 0, AV_INPUT_BUFFER_PADDING_SIZE);
     if (str)
         *str = idx;
 
diff --git a/libavformat/oggparsecelt.c b/libavformat/oggparsecelt.c
index 7084e768a3..ab8532090e 100644
--- a/libavformat/oggparsecelt.c
+++ b/libavformat/oggparsecelt.c
@@ -47,7 +47,7 @@ static int celt_header(AVFormatContext *s, int idx)
         uint8_t *extradata;
 
         extradata = av_malloc(2 * sizeof(uint32_t) +
-                              FF_INPUT_BUFFER_PADDING_SIZE);
+                              AV_INPUT_BUFFER_PADDING_SIZE);
         priv = av_malloc(sizeof(struct oggcelt_private));
         if (!extradata || !priv) {
             av_free(extradata);
diff --git a/libavformat/oggparseflac.c b/libavformat/oggparseflac.c
index 57bba68079..30a4840120 100644
--- a/libavformat/oggparseflac.c
+++ b/libavformat/oggparseflac.c
@@ -62,7 +62,7 @@ flac_header (AVFormatContext * s, int idx)
         st->need_parsing = AVSTREAM_PARSE_HEADERS;
 
         st->codec->extradata =
-            av_malloc(FLAC_STREAMINFO_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
+            av_malloc(FLAC_STREAMINFO_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
         memcpy(st->codec->extradata, streaminfo_start, FLAC_STREAMINFO_SIZE);
         st->codec->extradata_size = FLAC_STREAMINFO_SIZE;
 
diff --git a/libavformat/oggparseopus.c b/libavformat/oggparseopus.c
index 5931ab543b..1851ff11ee 100644
--- a/libavformat/oggparseopus.c
+++ b/libavformat/oggparseopus.c
@@ -57,7 +57,7 @@ static int opus_header(AVFormatContext *avf, int idx)
         st->codec->channels   = AV_RL8(packet + 9);
         priv->pre_skip        = AV_RL16(packet + 10);
 
-        extradata = av_malloc(os->psize + FF_INPUT_BUFFER_PADDING_SIZE);
+        extradata = av_malloc(os->psize + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!extradata)
             return AVERROR(ENOMEM);
 
diff --git a/libavformat/oggparsespeex.c b/libavformat/oggparsespeex.c
index b2779e74c1..f7af79418f 100644
--- a/libavformat/oggparsespeex.c
+++ b/libavformat/oggparsespeex.c
@@ -74,7 +74,7 @@ static int speex_header(AVFormatContext *s, int idx) {
 
         st->codec->extradata_size = os->psize;
         st->codec->extradata = av_malloc(st->codec->extradata_size
-                                         + FF_INPUT_BUFFER_PADDING_SIZE);
+                                         + AV_INPUT_BUFFER_PADDING_SIZE);
         memcpy(st->codec->extradata, p, st->codec->extradata_size);
 
         avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
diff --git a/libavformat/oggparsetheora.c b/libavformat/oggparsetheora.c
index d78f02d67a..01d1518c2a 100644
--- a/libavformat/oggparsetheora.c
+++ b/libavformat/oggparsetheora.c
@@ -126,7 +126,7 @@ static int theora_header(AVFormatContext *s, int idx)
     }
 
     if ((err = av_reallocp(&st->codec->extradata,
-                           cds + FF_INPUT_BUFFER_PADDING_SIZE)) < 0) {
+                           cds + AV_INPUT_BUFFER_PADDING_SIZE)) < 0) {
         st->codec->extradata_size = 0;
         return err;
     }
diff --git a/libavformat/oggparsevorbis.c b/libavformat/oggparsevorbis.c
index b2f9c8b03e..aac0f0e980 100644
--- a/libavformat/oggparsevorbis.c
+++ b/libavformat/oggparsevorbis.c
@@ -234,7 +234,7 @@ static int fixup_vorbis_headers(AVFormatContext *as,
         offset += priv->len[i];
         av_freep(&priv->packet[i]);
     }
-    if ((err = av_reallocp(buf, offset + FF_INPUT_BUFFER_PADDING_SIZE)) < 0)
+    if ((err = av_reallocp(buf, offset + AV_INPUT_BUFFER_PADDING_SIZE)) < 0)
         return err;
     return offset;
 }
diff --git a/libavformat/omadec.c b/libavformat/omadec.c
index 8dc35d17c2..28276d941d 100644
--- a/libavformat/omadec.c
+++ b/libavformat/omadec.c
@@ -357,7 +357,7 @@ static int oma_read_header(AVFormatContext *s)
         /* fake the ATRAC3 extradata
          * (wav format, makes stream copy to wav work) */
         st->codec->extradata_size = 14;
-        edata = av_mallocz(14 + FF_INPUT_BUFFER_PADDING_SIZE);
+        edata = av_mallocz(14 + AV_INPUT_BUFFER_PADDING_SIZE);
         if (!edata)
             return AVERROR(ENOMEM);
 
diff --git a/libavformat/rawdec.c b/libavformat/rawdec.c
index 65cb6bb00f..74ca272300 100644
--- a/libavformat/rawdec.c
+++ b/libavformat/rawdec.c
@@ -49,7 +49,7 @@ int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt)
     } else if (ret < size) {
         /* initialize end of packet for partial reads to avoid reading
          * uninitialized data on allowed overreads */
-        memset(pkt->data + ret, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+        memset(pkt->data + ret, 0, AV_INPUT_BUFFER_PADDING_SIZE);
     }
     pkt->size = ret;
     return ret;
diff --git a/libavformat/rdt.c b/libavformat/rdt.c
index 5478f88fc6..091bff2981 100644
--- a/libavformat/rdt.c
+++ b/libavformat/rdt.c
@@ -86,7 +86,7 @@ struct PayloadContext {
     RMStream **rmst;
     uint8_t *mlti_data;
     unsigned int mlti_data_size;
-    char buffer[RTP_MAX_PACKET_LENGTH + FF_INPUT_BUFFER_PADDING_SIZE];
+    char buffer[RTP_MAX_PACKET_LENGTH + AV_INPUT_BUFFER_PADDING_SIZE];
     int audio_pkt_cnt; /**< remaining audio packets in rmdec */
 };
 
@@ -398,7 +398,7 @@ rdt_parse_b64buf (unsigned int *target_len, const char *p)
         len -= 2; /* skip embracing " at start/end */
     }
     *target_len = len * 3 / 4;
-    target = av_mallocz(*target_len + FF_INPUT_BUFFER_PADDING_SIZE);
+    target = av_mallocz(*target_len + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!target)
         return NULL;
     av_base64_decode(target, p, *target_len);
diff --git a/libavformat/riffdec.c b/libavformat/riffdec.c
index 4d7b684e68..41b7a9c865 100644
--- a/libavformat/riffdec.c
+++ b/libavformat/riffdec.c
@@ -114,7 +114,7 @@ int ff_get_wav_header(AVFormatContext *s, AVIOContext *pb,
         if (cbSize > 0) {
             av_free(codec->extradata);
             codec->extradata = av_mallocz(codec->extradata_size +
-                                          FF_INPUT_BUFFER_PADDING_SIZE);
+                                          AV_INPUT_BUFFER_PADDING_SIZE);
             if (!codec->extradata)
                 return AVERROR(ENOMEM);
             avio_read(pb, codec->extradata, codec->extradata_size);
diff --git a/libavformat/rl2.c b/libavformat/rl2.c
index 5d30bf8bd6..a6544c3a60 100644
--- a/libavformat/rl2.c
+++ b/libavformat/rl2.c
@@ -132,7 +132,7 @@ static av_cold int rl2_read_header(AVFormatContext *s)
         st->codec->extradata_size += back_size;
 
     st->codec->extradata = av_mallocz(st->codec->extradata_size +
-                                          FF_INPUT_BUFFER_PADDING_SIZE);
+                                          AV_INPUT_BUFFER_PADDING_SIZE);
     if(!st->codec->extradata)
         return AVERROR(ENOMEM);
 
diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c
index cab75fd338..d28a2a8d1e 100644
--- a/libavformat/rmdec.c
+++ b/libavformat/rmdec.c
@@ -86,7 +86,7 @@ static int rm_read_extradata(AVIOContext *pb, AVCodecContext *avctx, unsigned si
 {
     if (size >= 1<<24)
         return -1;
-    avctx->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
+    avctx->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!avctx->extradata)
         return AVERROR(ENOMEM);
     avctx->extradata_size = avio_read(pb, avctx->extradata, size);
@@ -203,7 +203,7 @@ static int rm_read_audio_stream_info(AVFormatContext *s, AVIOContext *pb,
             if (version == 5)
                 avio_r8(pb);
             codecdata_length = avio_rb32(pb);
-            if(codecdata_length + FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)codecdata_length){
+            if(codecdata_length + AV_INPUT_BUFFER_PADDING_SIZE <= (unsigned)codecdata_length){
                 av_log(s, AV_LOG_ERROR, "codecdata_length too large\n");
                 return -1;
             }
@@ -231,7 +231,7 @@ static int rm_read_audio_stream_info(AVFormatContext *s, AVIOContext *pb,
             if (version == 5)
                 avio_r8(pb);
             codecdata_length = avio_rb32(pb);
-            if(codecdata_length + FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)codecdata_length){
+            if(codecdata_length + AV_INPUT_BUFFER_PADDING_SIZE <= (unsigned)codecdata_length){
                 av_log(s, AV_LOG_ERROR, "codecdata_length too large\n");
                 return -1;
             }
diff --git a/libavformat/rtpdec_h264.c b/libavformat/rtpdec_h264.c
index 1a690115e5..e8543ee06d 100644
--- a/libavformat/rtpdec_h264.c
+++ b/libavformat/rtpdec_h264.c
@@ -119,7 +119,7 @@ int ff_h264_parse_sprop_parameter_sets(AVFormatContext *s,
             uint8_t *dest = av_realloc(*data_ptr,
                                        packet_size + sizeof(start_sequence) +
                                        *size_ptr +
-                                       FF_INPUT_BUFFER_PADDING_SIZE);
+                                       AV_INPUT_BUFFER_PADDING_SIZE);
             if (!dest) {
                 av_log(s, AV_LOG_ERROR,
                        "Unable to allocate memory for extradata!\n");
@@ -132,7 +132,7 @@ int ff_h264_parse_sprop_parameter_sets(AVFormatContext *s,
             memcpy(dest + *size_ptr + sizeof(start_sequence),
                    decoded_packet, packet_size);
             memset(dest + *size_ptr + sizeof(start_sequence) +
-                   packet_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+                   packet_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
             *size_ptr += sizeof(start_sequence) + packet_size;
         }
diff --git a/libavformat/rtpdec_hevc.c b/libavformat/rtpdec_hevc.c
index a4d9c54e0b..dee904397c 100644
--- a/libavformat/rtpdec_hevc.c
+++ b/libavformat/rtpdec_hevc.c
@@ -148,7 +148,7 @@ static av_cold int hevc_parse_sdp_line(AVFormatContext *ctx, int st_index,
             codec->extradata_size = hevc_data->vps_size + hevc_data->sps_size +
                                     hevc_data->pps_size + hevc_data->sei_size;
             codec->extradata = av_malloc(codec->extradata_size +
-                                         FF_INPUT_BUFFER_PADDING_SIZE);
+                                         AV_INPUT_BUFFER_PADDING_SIZE);
             if (!codec->extradata) {
                 ret = AVERROR(ENOMEM);
                 codec->extradata_size = 0;
@@ -162,7 +162,7 @@ static av_cold int hevc_parse_sdp_line(AVFormatContext *ctx, int st_index,
                 pos += hevc_data->pps_size;
                 memcpy(codec->extradata + pos, hevc_data->sei, hevc_data->sei_size);
                 pos += hevc_data->sei_size;
-                memset(codec->extradata + pos, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+                memset(codec->extradata + pos, 0, AV_INPUT_BUFFER_PADDING_SIZE);
             }
 
             av_freep(&hevc_data->vps);
diff --git a/libavformat/rtpdec_latm.c b/libavformat/rtpdec_latm.c
index 5c54c202d0..d22cc1d215 100644
--- a/libavformat/rtpdec_latm.c
+++ b/libavformat/rtpdec_latm.c
@@ -97,7 +97,7 @@ static int parse_fmtp_config(AVStream *st, const char *value)
     int audio_mux_version, same_time_framing, num_programs, num_layers;
 
     /* Pad this buffer, too, to avoid out of bounds reads with get_bits below */
-    config = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
+    config = av_mallocz(len + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!config)
         return AVERROR(ENOMEM);
     ff_hex_to_data(config, value);
@@ -118,7 +118,7 @@ static int parse_fmtp_config(AVStream *st, const char *value)
     av_freep(&st->codec->extradata);
     st->codec->extradata_size = (get_bits_left(&gb) + 7)/8;
     st->codec->extradata = av_mallocz(st->codec->extradata_size +
-                                      FF_INPUT_BUFFER_PADDING_SIZE);
+                                      AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata) {
         ret = AVERROR(ENOMEM);
         goto end;
diff --git a/libavformat/rtpdec_mpeg4.c b/libavformat/rtpdec_mpeg4.c
index c08242e792..a8c9943537 100644
--- a/libavformat/rtpdec_mpeg4.c
+++ b/libavformat/rtpdec_mpeg4.c
@@ -102,7 +102,7 @@ static int parse_fmtp_config(AVCodecContext *codec, const char *value)
     /* decode the hexa encoded parameter */
     int len = ff_hex_to_data(NULL, value);
     av_free(codec->extradata);
-    codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
+    codec->extradata = av_mallocz(len + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!codec->extradata)
         return AVERROR(ENOMEM);
     codec->extradata_size = len;
diff --git a/libavformat/rtpdec_qdm2.c b/libavformat/rtpdec_qdm2.c
index 8eea571460..16dd48920e 100644
--- a/libavformat/rtpdec_qdm2.c
+++ b/libavformat/rtpdec_qdm2.c
@@ -104,7 +104,7 @@ static int qdm2_parse_config(PayloadContext *qdm, AVStream *st,
                     return AVERROR_INVALIDDATA;
                 av_freep(&st->codec->extradata);
                 st->codec->extradata_size = 26 + item_len;
-                if (!(st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE))) {
+                if (!(st->codec->extradata = av_mallocz(st->codec->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE))) {
                     st->codec->extradata_size = 0;
                     return AVERROR(ENOMEM);
                 }
diff --git a/libavformat/rtpdec_qt.c b/libavformat/rtpdec_qt.c
index 62aee89e50..002413dec2 100644
--- a/libavformat/rtpdec_qt.c
+++ b/libavformat/rtpdec_qt.c
@@ -174,14 +174,14 @@ static int qt_rtp_parse_packet(AVFormatContext *s, PayloadContext *qt,
         if (qt->pkt.size > 0 && qt->timestamp == *timestamp) {
             int err;
             if ((err = av_reallocp(&qt->pkt.data, qt->pkt.size + alen +
-                                   FF_INPUT_BUFFER_PADDING_SIZE)) < 0) {
+                                   AV_INPUT_BUFFER_PADDING_SIZE)) < 0) {
                 qt->pkt.size = 0;
                 return err;
             }
         } else {
             av_freep(&qt->pkt.data);
             av_init_packet(&qt->pkt);
-            qt->pkt.data = av_realloc(NULL, alen + FF_INPUT_BUFFER_PADDING_SIZE);
+            qt->pkt.data = av_realloc(NULL, alen + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!qt->pkt.data)
                 return AVERROR(ENOMEM);
             qt->pkt.size = 0;
@@ -198,7 +198,7 @@ static int qt_rtp_parse_packet(AVFormatContext *s, PayloadContext *qt,
             qt->pkt.data = NULL;
             pkt->flags        = keyframe ? AV_PKT_FLAG_KEY : 0;
             pkt->stream_index = st->index;
-            memset(pkt->data + pkt->size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+            memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
             return 0;
         }
         return AVERROR(EAGAIN);
diff --git a/libavformat/rtpdec_svq3.c b/libavformat/rtpdec_svq3.c
index 3104795165..004696fa54 100644
--- a/libavformat/rtpdec_svq3.c
+++ b/libavformat/rtpdec_svq3.c
@@ -62,7 +62,7 @@ static int svq3_parse_packet (AVFormatContext *s, PayloadContext *sv,
         st->codec->extradata_size = 0;
 
         if (len < 2 || !(st->codec->extradata =
-                         av_malloc(len + 8 + FF_INPUT_BUFFER_PADDING_SIZE)))
+                         av_malloc(len + 8 + AV_INPUT_BUFFER_PADDING_SIZE)))
             return AVERROR_INVALIDDATA;
 
         st->codec->extradata_size = len + 8;
diff --git a/libavformat/rtpdec_xiph.c b/libavformat/rtpdec_xiph.c
index 66e619149b..5e17181ff3 100644
--- a/libavformat/rtpdec_xiph.c
+++ b/libavformat/rtpdec_xiph.c
@@ -262,8 +262,8 @@ parse_packed_headers(const uint8_t * packed_headers,
     /* allocate extra space:
      * -- length/255 +2 for xiphlacing
      * -- one for the '2' marker
-     * -- FF_INPUT_BUFFER_PADDING_SIZE required */
-    extradata_alloc = length + length/255 + 3 + FF_INPUT_BUFFER_PADDING_SIZE;
+     * -- AV_INPUT_BUFFER_PADDING_SIZE required */
+    extradata_alloc = length + length/255 + 3 + AV_INPUT_BUFFER_PADDING_SIZE;
 
     ptr = codec->extradata = av_malloc(extradata_alloc);
     if (!ptr) {
diff --git a/libavformat/sierravmd.c b/libavformat/sierravmd.c
index 279633fe99..c6f9c035c5 100644
--- a/libavformat/sierravmd.c
+++ b/libavformat/sierravmd.c
@@ -120,7 +120,7 @@ static int vmd_read_header(AVFormatContext *s)
         vst->codec->height >>= 1;
     }
     vst->codec->extradata_size = VMD_HEADER_SIZE;
-    vst->codec->extradata = av_mallocz(VMD_HEADER_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
+    vst->codec->extradata = av_mallocz(VMD_HEADER_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
     memcpy(vst->codec->extradata, vmd->vmd_header, VMD_HEADER_SIZE);
 
     /* if sample rate is 0, assume no audio */
diff --git a/libavformat/smacker.c b/libavformat/smacker.c
index 2fa531bf64..b1d8e95f5c 100644
--- a/libavformat/smacker.c
+++ b/libavformat/smacker.c
@@ -213,7 +213,7 @@ static int smacker_read_header(AVFormatContext *s)
 
     /* load trees to extradata, they will be unpacked by decoder */
     st->codec->extradata = av_mallocz(smk->treesize + 16 +
-                                      FF_INPUT_BUFFER_PADDING_SIZE);
+                                      AV_INPUT_BUFFER_PADDING_SIZE);
     st->codec->extradata_size = smk->treesize + 16;
     if(!st->codec->extradata){
         av_log(s, AV_LOG_ERROR,
diff --git a/libavformat/smush.c b/libavformat/smush.c
index 1615b45417..94ecb5cb17 100644
--- a/libavformat/smush.c
+++ b/libavformat/smush.c
@@ -161,7 +161,7 @@ static int smush_read_header(AVFormatContext *ctx)
         av_free(vst->codec->extradata);
         vst->codec->extradata_size = 1024 + 2;
         vst->codec->extradata = av_malloc(vst->codec->extradata_size +
-                                          FF_INPUT_BUFFER_PADDING_SIZE);
+                                          AV_INPUT_BUFFER_PADDING_SIZE);
         if (!vst->codec->extradata)
             return AVERROR(ENOMEM);
 
diff --git a/libavformat/spdifenc.c b/libavformat/spdifenc.c
index 432654affd..7162f0827b 100644
--- a/libavformat/spdifenc.c
+++ b/libavformat/spdifenc.c
@@ -525,7 +525,7 @@ static int spdif_write_packet(struct AVFormatContext *s, AVPacket *pkt)
     if (ctx->extra_bswap ^ (ctx->spdif_flags & SPDIF_FLAG_BIGENDIAN)) {
     avio_write(s->pb, ctx->out_buf, ctx->out_bytes & ~1);
     } else {
-    av_fast_malloc(&ctx->buffer, &ctx->buffer_size, ctx->out_bytes + FF_INPUT_BUFFER_PADDING_SIZE);
+    av_fast_malloc(&ctx->buffer, &ctx->buffer_size, ctx->out_bytes + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!ctx->buffer)
         return AVERROR(ENOMEM);
     ff_spdif_bswap_buf16((uint16_t *)ctx->buffer, (uint16_t *)ctx->out_buf, ctx->out_bytes >> 1);
diff --git a/libavformat/takdec.c b/libavformat/takdec.c
index 584cbccb50..902ba05097 100644
--- a/libavformat/takdec.c
+++ b/libavformat/takdec.c
@@ -71,7 +71,7 @@ static int tak_read_header(AVFormatContext *s)
         case TAK_METADATA_STREAMINFO:
         case TAK_METADATA_LAST_FRAME:
         case TAK_METADATA_ENCODER:
-            buffer = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
+            buffer = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!buffer)
                 return AVERROR(ENOMEM);
 
diff --git a/libavformat/tta.c b/libavformat/tta.c
index bc86a777b3..f5304f31ed 100644
--- a/libavformat/tta.c
+++ b/libavformat/tta.c
@@ -113,12 +113,12 @@ static int tta_read_header(AVFormatContext *s)
     st->codec->bits_per_coded_sample = bps;
 
     st->codec->extradata_size = avio_tell(s->pb) - start_offset;
-    if(st->codec->extradata_size+FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)st->codec->extradata_size){
+    if(st->codec->extradata_size+AV_INPUT_BUFFER_PADDING_SIZE <= (unsigned)st->codec->extradata_size){
         //this check is redundant as avio_read should fail
         av_log(s, AV_LOG_ERROR, "extradata_size too large\n");
         return -1;
     }
-    st->codec->extradata = av_mallocz(st->codec->extradata_size+FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata = av_mallocz(st->codec->extradata_size+AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata) {
         st->codec->extradata_size = 0;
         return AVERROR(ENOMEM);
diff --git a/libavformat/utils.c b/libavformat/utils.c
index fd393082e4..d72f5331be 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2241,7 +2241,7 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
             if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
                 st->codec->extradata_size = i;
                 st->codec->extradata = av_mallocz(st->codec->extradata_size +
-                                                  FF_INPUT_BUFFER_PADDING_SIZE);
+                                                  AV_INPUT_BUFFER_PADDING_SIZE);
                 if (!st->codec->extradata)
                     return AVERROR(ENOMEM);
                 memcpy(st->codec->extradata, pkt->data,
@@ -3083,7 +3083,7 @@ int ff_generate_avci_extradata(AVStream *st)
 
     av_freep(&st->codec->extradata);
     st->codec->extradata_size = 0;
-    st->codec->extradata      = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata      = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
     if (!st->codec->extradata)
         return AVERROR(ENOMEM);
 
diff --git a/libavformat/vqf.c b/libavformat/vqf.c
index c04ffe74ee..49895c03a8 100644
--- a/libavformat/vqf.c
+++ b/libavformat/vqf.c
@@ -215,7 +215,7 @@ static int vqf_read_header(AVFormatContext *s)
     avpriv_set_pts_info(st, 64, size, st->codec->sample_rate);
 
     /* put first 12 bytes of COMM chunk in extradata */
-    if (!(st->codec->extradata = av_malloc(12 + FF_INPUT_BUFFER_PADDING_SIZE)))
+    if (!(st->codec->extradata = av_malloc(12 + AV_INPUT_BUFFER_PADDING_SIZE)))
         return AVERROR(ENOMEM);
     st->codec->extradata_size = 12;
     memcpy(st->codec->extradata, comm_chunk, 12);
diff --git a/libavformat/westwood_vqa.c b/libavformat/westwood_vqa.c
index 77da375e70..1f2359e83d 100644
--- a/libavformat/westwood_vqa.c
+++ b/libavformat/westwood_vqa.c
@@ -102,7 +102,7 @@ static int wsvqa_read_header(AVFormatContext *s)
 
     /* the VQA header needs to go to the decoder */
     st->codec->extradata_size = VQA_HEADER_SIZE;
-    st->codec->extradata = av_mallocz(VQA_HEADER_SIZE + FF_INPUT_BUFFER_PADDING_SIZE);
+    st->codec->extradata = av_mallocz(VQA_HEADER_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
     header = (unsigned char *)st->codec->extradata;
     if (avio_read(pb, st->codec->extradata, VQA_HEADER_SIZE) !=
         VQA_HEADER_SIZE) {
@@ -224,7 +224,7 @@ static int wsvqa_read_packet(AVFormatContext *s,
                     case SND2_TAG:
                         st->codec->codec_id = AV_CODEC_ID_ADPCM_IMA_WS;
                         st->codec->extradata_size = 2;
-                        st->codec->extradata = av_mallocz(2 + FF_INPUT_BUFFER_PADDING_SIZE);
+                        st->codec->extradata = av_mallocz(2 + AV_INPUT_BUFFER_PADDING_SIZE);
                         if (!st->codec->extradata)
                             return AVERROR(ENOMEM);
                         AV_WL16(st->codec->extradata, wsvqa->version);
diff --git a/libavformat/xmv.c b/libavformat/xmv.c
index bcb17f8893..b8e3191607 100644
--- a/libavformat/xmv.c
+++ b/libavformat/xmv.c
@@ -393,7 +393,7 @@ static int xmv_process_packet_header(AVFormatContext *s)
                     av_free(vst->codec->extradata);
 
                     vst->codec->extradata =
-                        av_malloc(4 + FF_INPUT_BUFFER_PADDING_SIZE);
+                        av_malloc(4 + AV_INPUT_BUFFER_PADDING_SIZE);
                     vst->codec->extradata_size = 4;
                 }
 
diff --git a/libavformat/xwma.c b/libavformat/xwma.c
index cab4616070..b24cde857b 100644
--- a/libavformat/xwma.c
+++ b/libavformat/xwma.c
@@ -105,7 +105,7 @@ static int xwma_read_header(AVFormatContext *s)
                                   st->codec->extradata_size);
         } else {
             st->codec->extradata_size = 6;
-            st->codec->extradata      = av_mallocz(6 + FF_INPUT_BUFFER_PADDING_SIZE);
+            st->codec->extradata      = av_mallocz(6 + AV_INPUT_BUFFER_PADDING_SIZE);
             if (!st->codec->extradata)
                 return AVERROR(ENOMEM);
 
diff --git a/libavformat/yop.c b/libavformat/yop.c
index 08fcc19e3c..b809ad2b56 100644
--- a/libavformat/yop.c
+++ b/libavformat/yop.c
@@ -63,7 +63,7 @@ static int yop_read_header(AVFormatContext *s)
 
     // Extra data that will be passed to the decoder
 
-    video_stream->codec->extradata = av_mallocz(8 + FF_INPUT_BUFFER_PADDING_SIZE);
+    video_stream->codec->extradata = av_mallocz(8 + AV_INPUT_BUFFER_PADDING_SIZE);
 
     if (!video_stream->codec->extradata)
         return AVERROR(ENOMEM);