avcodec: remove FF_API_AVCTX_TIMEBASE

Signed-off-by: James Almer <jamrial@gmail.com>

15 files changed, 12 insertions, 50 deletions

diff --git a/libavcodec/av1_parser.c b/libavcodec/av1_parser.c
index e57e382757..14dae92fe9 100644
--- a/libavcodec/av1_parser.c
+++ b/libavcodec/av1_parser.c
@@ -168,9 +168,6 @@ static int av1_parser_parse(AVCodecParserContext *ctx,
                   timing->num_units_in_display_tick, timing->time_scale, INT_MAX);
     }
 
-    if (avctx->framerate.num)
-        avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
-
 end:
     ff_cbs_fragment_reset(td);
 
diff --git a/libavcodec/avcodec.c b/libavcodec/avcodec.c
index efa76d2740..00a5851807 100644
--- a/libavcodec/avcodec.c
+++ b/libavcodec/avcodec.c
@@ -349,11 +349,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
             ret = AVERROR(EINVAL);
             goto free_and_end;
         }
-
-#if FF_API_AVCTX_TIMEBASE
-        if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
-            avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
-#endif
     }
     if (codec->priv_class)
         av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index cc7a8faa6a..c83e03a08f 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -552,8 +552,7 @@ typedef struct AVCodecContext {
      * (fixed_vop_rate == 0 implies that it is different from the framerate)
      *
      * - encoding: MUST be set by user.
-     * - decoding: the use of this field for decoding is deprecated.
-     *             Use framerate instead.
+     * - decoding: unused.
      */
     AVRational time_base;
 
diff --git a/libavcodec/avs2_parser.c b/libavcodec/avs2_parser.c
index 0350517493..200134f91d 100644
--- a/libavcodec/avs2_parser.c
+++ b/libavcodec/avs2_parser.c
@@ -112,9 +112,9 @@ static void parse_avs2_seq_header(AVCodecParserContext *s, const uint8_t *buf,
     s->height = height;
     s->coded_width = FFALIGN(width, 8);
     s->coded_height = FFALIGN(height, 8);
-    avctx->framerate.num = avctx->time_base.den =
+    avctx->framerate.num =
         ff_avs2_frame_rate_tab[frame_rate_code].num;
-    avctx->framerate.den = avctx->time_base.num =
+    avctx->framerate.den =
         ff_avs2_frame_rate_tab[frame_rate_code].den;
     avctx->has_b_frames = FFMAX(avctx->has_b_frames, !low_delay);
 
diff --git a/libavcodec/avs3_parser.c b/libavcodec/avs3_parser.c
index a9fd879e9d..a819b5783d 100644
--- a/libavcodec/avs3_parser.c
+++ b/libavcodec/avs3_parser.c
@@ -117,8 +117,8 @@ static void parse_avs3_nal_units(AVCodecParserContext *s, const uint8_t *buf,
             low_delay = get_bits(&gb, 1);
             avctx->has_b_frames = FFMAX(avctx->has_b_frames, !low_delay);
 
-            avctx->framerate.num = avctx->time_base.den = ff_avs3_frame_rate_tab[ratecode].num;
-            avctx->framerate.den = avctx->time_base.num = ff_avs3_frame_rate_tab[ratecode].den;
+            avctx->framerate.num = ff_avs3_frame_rate_tab[ratecode].num;
+            avctx->framerate.den = ff_avs3_frame_rate_tab[ratecode].den;
 
             s->width  = s->coded_width = avctx->width;
             s->height = s->coded_height = avctx->height;
diff --git a/libavcodec/cpia.c b/libavcodec/cpia.c
index 99362e73f0..bfd270dae2 100644
--- a/libavcodec/cpia.c
+++ b/libavcodec/cpia.c
@@ -198,14 +198,6 @@ static av_cold int cpia_decode_init(AVCodecContext *avctx)
     // output pixel format
     avctx->pix_fmt = AV_PIX_FMT_YUV420P;
 
-    /* The default timebase set by the v4l2 demuxer leads to probing which is buggy.
-     * Set some reasonable time_base to skip this.
-     */
-    if (avctx->time_base.num == 1 && avctx->time_base.den == 1000000) {
-        avctx->time_base.num = 1;
-        avctx->time_base.den = 60;
-    }
-
     s->frame = av_frame_alloc();
     if (!s->frame)
         return AVERROR(ENOMEM);
diff --git a/libavcodec/decode.c b/libavcodec/decode.c
index 34e67a649b..aba20859df 100644
--- a/libavcodec/decode.c
+++ b/libavcodec/decode.c
@@ -434,11 +434,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
 #endif
         ret = pkt->size;
 
-#if FF_API_AVCTX_TIMEBASE
-    if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
-        avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
-#endif
-
     /* do not stop draining when actual_got_frame != 0 or ret < 0 */
     /* got_frame == 0 but actual_got_frame != 0 when frame is discarded */
     if (avci->draining && !actual_got_frame) {
diff --git a/libavcodec/h264_parser.c b/libavcodec/h264_parser.c
index 3ed23fb9ca..46134a1c48 100644
--- a/libavcodec/h264_parser.c
+++ b/libavcodec/h264_parser.c
@@ -593,6 +593,7 @@ static int h264_parse(AVCodecParserContext *s,
 {
     H264ParseContext *p = s->priv_data;
     ParseContext *pc = &p->pc;
+    AVRational time_base = { 0, 1 };
     int next;
 
     if (!p->got_first) {
@@ -624,7 +625,7 @@ static int h264_parse(AVCodecParserContext *s,
     parse_nal_units(s, avctx, buf, buf_size);
 
     if (avctx->framerate.num)
-        avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
+        time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
     if (p->sei.picture_timing.cpb_removal_delay >= 0) {
         s->dts_sync_point    = p->sei.buffering_period.present;
         s->dts_ref_dts_delta = p->sei.picture_timing.cpb_removal_delay;
@@ -640,9 +641,9 @@ static int h264_parse(AVCodecParserContext *s,
     }
 
     if (s->dts_sync_point >= 0) {
-        int64_t den = avctx->time_base.den * (int64_t)avctx->pkt_timebase.num;
+        int64_t den = time_base.den * (int64_t)avctx->pkt_timebase.num;
         if (den > 0) {
-            int64_t num = avctx->time_base.num * (int64_t)avctx->pkt_timebase.den;
+            int64_t num = time_base.num * (int64_t)avctx->pkt_timebase.den;
             if (s->dts != AV_NOPTS_VALUE) {
                 // got DTS from the stream, update reference timestamp
                 p->reference_dts = s->dts - av_rescale(s->dts_ref_dts_delta, num, den);
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index 9f7b3782e8..2d691731c5 100644
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -382,12 +382,6 @@ static av_cold int h264_decode_init(AVCodecContext *avctx)
         return AVERROR_UNKNOWN;
     }
 
-    if (avctx->ticks_per_frame == 1) {
-        if(h->avctx->time_base.den < INT_MAX/2) {
-            h->avctx->time_base.den *= 2;
-        } else
-            h->avctx->time_base.num /= 2;
-    }
     avctx->ticks_per_frame = 2;
 
     if (!avctx->internal->is_copy) {
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index f33911e1a8..b2be55af4a 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -436,7 +436,7 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
 
         /* test interlaced mode */
         if (s->first_picture   &&
-            (s->multiscope != 2 || s->avctx->time_base.den >= 25 * s->avctx->time_base.num) &&
+            (s->multiscope != 2 || s->avctx->pkt_timebase.den >= 25 * s->avctx->pkt_timebase.num) &&
             s->orig_height != 0 &&
             s->height < ((s->orig_height * 3) / 4)) {
             s->interlaced                    = 1;
diff --git a/libavcodec/mpeg4video_parser.c b/libavcodec/mpeg4video_parser.c
index e32a93d296..3beb5f6dae 100644
--- a/libavcodec/mpeg4video_parser.c
+++ b/libavcodec/mpeg4video_parser.c
@@ -114,11 +114,11 @@ static int mpeg4_decode_header(AVCodecParserContext *s1, AVCodecContext *avctx,
         if (ret < 0)
             return ret;
     }
-    if((s1->flags & PARSER_FLAG_USE_CODEC_TS) && s->avctx->time_base.den>0 && ret>=0){
+    if((s1->flags & PARSER_FLAG_USE_CODEC_TS) && s->avctx->framerate.num>0 && ret>=0){
         av_assert1(s1->pts == AV_NOPTS_VALUE);
         av_assert1(s1->dts == AV_NOPTS_VALUE);
 
-        s1->pts = av_rescale_q(s->time, (AVRational){1, s->avctx->time_base.den}, (AVRational){1, 1200000});
+        s1->pts = av_rescale_q(s->time, (AVRational){1, s->avctx->framerate.num}, (AVRational){1, 1200000});
     }
 
     s1->pict_type     = s->pict_type;
diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
index 0a100d2064..f96b6a3117 100644
--- a/libavcodec/mpeg4videodec.c
+++ b/libavcodec/mpeg4videodec.c
@@ -2648,8 +2648,6 @@ static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
     else
         s->avctx->framerate.den = 1;
 
-    s->avctx->time_base = av_inv_q(av_mul_q(s->avctx->framerate, (AVRational){s->avctx->ticks_per_frame, 1}));
-
     ctx->t_frame = 0;
 
     if (ctx->shape != BIN_ONLY_SHAPE) {
@@ -3145,7 +3143,6 @@ static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb,
                "time_increment_bits set to %d bits, based on bitstream analysis\n", ctx->time_increment_bits);
         if (s->avctx->framerate.num && 4*s->avctx->framerate.num < 1<<ctx->time_increment_bits) {
             s->avctx->framerate.num = 1<<ctx->time_increment_bits;
-            s->avctx->time_base = av_inv_q(av_mul_q(s->avctx->framerate, (AVRational){s->avctx->ticks_per_frame, 1}));
         }
     }
 
diff --git a/libavcodec/mpegvideo_parser.c b/libavcodec/mpegvideo_parser.c
index ac6efb6909..57bc1f706c 100644
--- a/libavcodec/mpegvideo_parser.c
+++ b/libavcodec/mpegvideo_parser.c
@@ -241,11 +241,6 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
         s->coded_width  = FFALIGN(pc->width,  16);
         s->coded_height = FFALIGN(pc->height, 16);
     }
-
-#if FF_API_AVCTX_TIMEBASE
-    if (avctx->framerate.num)
-        avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
-#endif
 }
 
 static int mpegvideo_parse(AVCodecParserContext *s,
diff --git a/libavcodec/vc1_parser.c b/libavcodec/vc1_parser.c
index a459a2aa7d..4167215fb1 100644
--- a/libavcodec/vc1_parser.c
+++ b/libavcodec/vc1_parser.c
@@ -112,8 +112,6 @@ static void vc1_extract_header(AVCodecParserContext *s, AVCodecContext *avctx,
 
         break;
     }
-    if (avctx->framerate.num)
-        avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
     s->format = vpc->v.chromaformat == 1 ? AV_PIX_FMT_YUV420P
                                          : AV_PIX_FMT_NONE;
     if (avctx->width && avctx->height) {
diff --git a/libavcodec/version_major.h b/libavcodec/version_major.h
index 84560bcaba..573cd855ed 100644
--- a/libavcodec/version_major.h
+++ b/libavcodec/version_major.h
@@ -38,7 +38,6 @@
  */
 
 #define FF_API_INIT_PACKET         (LIBAVCODEC_VERSION_MAJOR < 60)
-#define FF_API_AVCTX_TIMEBASE    (LIBAVCODEC_VERSION_MAJOR < 60)
 #define FF_API_FLAG_TRUNCATED      (LIBAVCODEC_VERSION_MAJOR < 60)
 #define FF_API_SUB_TEXT_FORMAT     (LIBAVCODEC_VERSION_MAJOR < 60)
 #define FF_API_IDCT_NONE           (LIBAVCODEC_VERSION_MAJOR < 60)