Merge remote-tracking branch 'qatar/master'

* qatar/master: (42 commits)
  swscale: fix signed overflow in yuv2mono_X_c_template
  snow: fix integer overflows
  svq1enc: remove stale altivec-related hack
  snow: fix signed overflow in byte to 32-bit replication
  adx: rename ff_adx_decode_header() to avpriv_adx_decode_header()
  avformat: add CRI ADX format demuxer
  adx: add an ADX parser.
  adx: move header decoding to ADX common code
  adx: calculate the number of blocks in a packet
  adx: define and use 2 new macro constants BLOCK_SIZE and BLOCK_SAMPLES
  adx: check for unsupported ADX formats
  adx: simplify encoding by using put_sbits()
  adx: calculate correct LPC coeffs
  adx: use 12-bit coefficients instead of 14-bit to avoid integer overflow
  adx: simplify adx_decode() by using get_sbits() to read residual samples
  adx: fix the data offset parsing in adx_decode_header()
  adx: remove unneeded post-decode channel interleaving
  adx: validate header values
  adx: cosmetics: general pretty-printing and comment clean-up
  adx: remove useless comments
  ...

Conflicts:
	Changelog
	libavcodec/cook.c
	libavcodec/fraps.c
	libavcodec/nuv.c
	libavcodec/pthread.c
	libavcodec/version.h
	libavformat/Makefile
	libavformat/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>

34 files changed, 494 insertions, 182 deletions

diff --git a/Changelog b/Changelog
index 69ed8cccbb..e64dca688b 100644
--- a/Changelog
+++ b/Changelog
@@ -125,6 +125,7 @@ easier to use. The changes are:
 - pan audio filter
 - IFF Amiga Continuous Bitmap (ACBM) decoder
 - ass filter
+- CRI ADX audio format demuxer
 
 
 version 0.8:
diff --git a/doc/general.texi b/doc/general.texi
index 1e8fc80e5e..15b9401a84 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -79,6 +79,8 @@ library:
 @item Brute Force & Ignorance   @tab   @tab X
     @tab Used in the game Flash Traffic: City of Angels.
 @item BWF                       @tab X @tab X
+@item CRI ADX                   @tab   @tab X
+    @tab Audio-only format used in console video games.
 @item Discworld II BMV          @tab   @tab X
 @item Interplay C93             @tab   @tab X
     @tab Used in the game Cyberia from Interplay.
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 07f7739738..77662d8f0b 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -519,7 +519,7 @@ OBJS-$(CONFIG_PCM_U32LE_ENCODER)          += pcm.o
 OBJS-$(CONFIG_PCM_ZORK_DECODER)           += pcm.o
 
 OBJS-$(CONFIG_ADPCM_4XM_DECODER)          += adpcm.o adpcm_data.o
-OBJS-$(CONFIG_ADPCM_ADX_DECODER)          += adxdec.o
+OBJS-$(CONFIG_ADPCM_ADX_DECODER)          += adxdec.o adx.o
 OBJS-$(CONFIG_ADPCM_ADX_ENCODER)          += adxenc.o
 OBJS-$(CONFIG_ADPCM_CT_DECODER)           += adpcm.o adpcm_data.o
 OBJS-$(CONFIG_ADPCM_EA_DECODER)           += adpcm.o
@@ -558,6 +558,7 @@ OBJS-$(CONFIG_ADPCM_YAMAHA_ENCODER)       += adpcmenc.o adpcm_data.o
 
 # libavformat dependencies
 OBJS-$(CONFIG_ADTS_MUXER)              += mpeg4audio.o
+OBJS-$(CONFIG_ADX_DEMUXER)             += adx.o
 OBJS-$(CONFIG_CAF_DEMUXER)             += mpeg4audio.o mpegaudiodata.o
 OBJS-$(CONFIG_DV_DEMUXER)              += dvdata.o
 OBJS-$(CONFIG_DV_MUXER)                += dvdata.o timecode.o
@@ -632,6 +633,7 @@ OBJS-$(CONFIG_AAC_PARSER)              += aac_parser.o aac_ac3_parser.o \
                                           aacadtsdec.o mpeg4audio.o
 OBJS-$(CONFIG_AC3_PARSER)              += ac3_parser.o ac3tab.o \
                                           aac_ac3_parser.o
+OBJS-$(CONFIG_ADX_PARSER)              += adx_parser.o adx.o
 OBJS-$(CONFIG_CAVSVIDEO_PARSER)        += cavs_parser.o
 OBJS-$(CONFIG_DCA_PARSER)              += dca_parser.o
 OBJS-$(CONFIG_DIRAC_PARSER)            += dirac_parser.o
diff --git a/libavcodec/adx.c b/libavcodec/adx.c
new file mode 100644
index 0000000000..aa90fd89c3
--- /dev/null
+++ b/libavcodec/adx.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2011  Justin Ruggles
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "libavutil/mathematics.h"
+#include "adx.h"
+
+void ff_adx_calculate_coeffs(int cutoff, int sample_rate, int bits, int *coeff)
+{
+    double a, b, c;
+
+    a = M_SQRT2 - cos(2.0 * M_PI * cutoff / sample_rate);
+    b = M_SQRT2 - 1.0;
+    c = (a - sqrt((a + b) * (a - b))) / b;
+
+    coeff[0] = lrintf(c * 2.0  * (1 << bits));
+    coeff[1] = lrintf(-(c * c) * (1 << bits));
+}
+
+int avpriv_adx_decode_header(AVCodecContext *avctx, const uint8_t *buf,
+                             int bufsize, int *header_size, int *coeff)
+{
+    int offset, cutoff;
+
+    if (bufsize < 24)
+        return AVERROR_INVALIDDATA;
+
+    if (AV_RB16(buf) != 0x8000)
+        return AVERROR_INVALIDDATA;
+    offset = AV_RB16(buf + 2) + 4;
+
+    /* if copyright string is within the provided data, validate it */
+    if (bufsize >= offset && memcmp(buf + offset - 6, "(c)CRI", 6))
+        return AVERROR_INVALIDDATA;
+
+    /* check for encoding=3 block_size=18, sample_size=4 */
+    if (buf[4] != 3 || buf[5] != 18 || buf[6] != 4) {
+        av_log_ask_for_sample(avctx, "unsupported ADX format\n");
+        return AVERROR_PATCHWELCOME;
+    }
+
+    /* channels */
+    avctx->channels = buf[7];
+    if (avctx->channels > 2)
+        return AVERROR_INVALIDDATA;
+
+    /* sample rate */
+    avctx->sample_rate = AV_RB32(buf + 8);
+    if (avctx->sample_rate < 1 ||
+        avctx->sample_rate > INT_MAX / (avctx->channels * BLOCK_SIZE * 8))
+        return AVERROR_INVALIDDATA;
+
+    /* bit rate */
+    avctx->bit_rate = avctx->sample_rate * avctx->channels * BLOCK_SIZE * 8 / BLOCK_SAMPLES;
+
+    /* LPC coefficients */
+    if (coeff) {
+        cutoff = AV_RB16(buf + 16);
+        ff_adx_calculate_coeffs(cutoff, avctx->sample_rate, COEFF_BITS, coeff);
+    }
+
+    *header_size = offset;
+    return 0;
+}
diff --git a/libavcodec/adx.h b/libavcodec/adx.h
index 0fa1003ffc..572483d28f 100644
--- a/libavcodec/adx.h
+++ b/libavcodec/adx.h
@@ -31,19 +31,50 @@
 #ifndef AVCODEC_ADX_H
 #define AVCODEC_ADX_H
 
+#include <stdint.h>
+
+#include "avcodec.h"
+
 typedef struct {
     int s1,s2;
-} PREV;
+} ADXChannelState;
 
 typedef struct {
-    PREV prev[2];
+    int channels;
+    ADXChannelState prev[2];
     int header_parsed;
-    unsigned char dec_temp[18*2];
-    int in_temp;
+    int eof;
+    int cutoff;
+    int coeff[2];
 } ADXContext;
 
-#define    BASEVOL   0x4000
-#define    SCALE1    0x7298
-#define    SCALE2    0x3350
+#define COEFF_BITS  12
+
+#define BLOCK_SIZE      18
+#define BLOCK_SAMPLES   32
+
+/**
+ * Calculate LPC coefficients based on cutoff frequency and sample rate.
+ *
+ * @param cutoff       cutoff frequency
+ * @param sample_rate  sample rate
+ * @param bits         number of bits used to quantize coefficients
+ * @param[out] coeff   2 quantized LPC coefficients
+ */
+void ff_adx_calculate_coeffs(int cutoff, int sample_rate, int bits, int *coeff);
+
+/**
+ * Decode ADX stream header.
+ * Sets avctx->channels and avctx->sample_rate.
+ *
+ * @param      avctx        codec context
+ * @param      buf          header data
+ * @param      bufsize      data size, should be at least 24 bytes
+ * @param[out] header_size  size of ADX header
+ * @param[out] coeff        2 LPC coefficients, can be NULL
+ * @return data offset or negative error code if header is invalid
+ */
+int avpriv_adx_decode_header(AVCodecContext *avctx, const uint8_t *buf,
+                             int bufsize, int *header_size, int *coeff);
 
 #endif /* AVCODEC_ADX_H */
diff --git a/libavcodec/adx_parser.c b/libavcodec/adx_parser.c
new file mode 100644
index 0000000000..ebcb1370e5
--- /dev/null
+++ b/libavcodec/adx_parser.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2011  Justin Ruggles
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * ADX audio parser
+ *
+ * Reads header to extradata and splits packets into individual blocks.
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "parser.h"
+#include "adx.h"
+
+typedef struct ADXParseContext {
+    ParseContext pc;
+    int header_size;
+    int block_size;
+    int buf_pos;
+} ADXParseContext;
+
+#define MIN_HEADER_SIZE 24
+
+static int adx_parse(AVCodecParserContext *s1,
+                           AVCodecContext *avctx,
+                           const uint8_t **poutbuf, int *poutbuf_size,
+                           const uint8_t *buf, int buf_size)
+{
+    ADXParseContext *s = s1->priv_data;
+    ParseContext *pc = &s->pc;
+    int next = END_NOT_FOUND;
+
+    if (!avctx->extradata_size) {
+        int ret;
+
+        ff_combine_frame(pc, END_NOT_FOUND, &buf, &buf_size);
+
+        if (!s->header_size && pc->index >= MIN_HEADER_SIZE) {
+            if (ret = avpriv_adx_decode_header(avctx, pc->buffer, pc->index,
+                                               &s->header_size, NULL))
+                return AVERROR_INVALIDDATA;
+            s->block_size = BLOCK_SIZE * avctx->channels;
+        }
+        if (s->header_size && s->header_size <= pc->index) {
+            avctx->extradata = av_mallocz(s->header_size + FF_INPUT_BUFFER_PADDING_SIZE);
+            if (!avctx->extradata)
+                return AVERROR(ENOMEM);
+            avctx->extradata_size = s->header_size;
+            memcpy(avctx->extradata, pc->buffer, s->header_size);
+            memmove(pc->buffer, pc->buffer + s->header_size, s->header_size);
+            pc->index -= s->header_size;
+        }
+        *poutbuf      = NULL;
+        *poutbuf_size = 0;
+        return buf_size;
+    }
+
+    if (pc->index - s->buf_pos >= s->block_size) {
+        *poutbuf      = &pc->buffer[s->buf_pos];
+        *poutbuf_size = s->block_size;
+        s->buf_pos   += s->block_size;
+        return 0;
+    }
+    if (pc->index && s->buf_pos) {
+        memmove(pc->buffer, &pc->buffer[s->buf_pos], pc->index - s->buf_pos);
+        pc->index -= s->buf_pos;
+        s->buf_pos = 0;
+    }
+    if (buf_size + pc->index >= s->block_size)
+        next = s->block_size - pc->index;
+
+    if (ff_combine_frame(pc, next, &buf, &buf_size) < 0 || !buf_size) {
+        *poutbuf      = NULL;
+        *poutbuf_size = 0;
+        return buf_size;
+    }
+    *poutbuf = buf;
+    *poutbuf_size = buf_size;
+    return next;
+}
+
+AVCodecParser ff_adx_parser = {
+    .codec_ids      = { CODEC_ID_ADPCM_ADX },
+    .priv_data_size = sizeof(ADXParseContext),
+    .parser_parse   = adx_parse,
+    .parser_close   = ff_parse_close,
+};
diff --git a/libavcodec/adxdec.c b/libavcodec/adxdec.c
index df3e8dd355..0fed1220ef 100644
--- a/libavcodec/adxdec.c
+++ b/libavcodec/adxdec.c
@@ -22,6 +22,7 @@
 #include "libavutil/intreadwrite.h"
 #include "avcodec.h"
 #include "adx.h"
+#include "get_bits.h"
 
 /**
  * @file
@@ -34,136 +35,105 @@
 
 static av_cold int adx_decode_init(AVCodecContext *avctx)
 {
+    ADXContext *c = avctx->priv_data;
+    int ret, header_size;
+
+    if (avctx->extradata_size < 24)
+        return AVERROR_INVALIDDATA;
+
+    if ((ret = avpriv_adx_decode_header(avctx, avctx->extradata,
+                                        avctx->extradata_size, &header_size,
+                                        c->coeff)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "error parsing ADX header\n");
+        return AVERROR_INVALIDDATA;
+    }
+    c->channels = avctx->channels;
+
     avctx->sample_fmt = AV_SAMPLE_FMT_S16;
     return 0;
 }
 
-/* 18 bytes <-> 32 samples */
-
-static void adx_decode(short *out,const unsigned char *in,PREV *prev)
+/**
+ * Decode 32 samples from 18 bytes.
+ *
+ * A 16-bit scalar value is applied to 32 residuals, which then have a
+ * 2nd-order LPC filter applied to it to form the output signal for a single
+ * channel.
+ */
+static int adx_decode(ADXContext *c, int16_t *out, const uint8_t *in, int ch)
 {
+    ADXChannelState *prev = &c->prev[ch];
+    GetBitContext gb;
     int scale = AV_RB16(in);
     int i;
-    int s0,s1,s2,d;
+    int s0, s1, s2, d;
 
-//    printf("%x ",scale);
+    /* check if this is an EOF packet */
+    if (scale & 0x8000)
+        return -1;
 
-    in+=2;
+    init_get_bits(&gb, in + 2, (BLOCK_SIZE - 2) * 8);
     s1 = prev->s1;
     s2 = prev->s2;
-    for(i=0;i<16;i++) {
-        d = in[i];
-        // d>>=4; if (d&8) d-=16;
-        d = ((signed char)d >> 4);
-        s0 = (BASEVOL*d*scale + SCALE1*s1 - SCALE2*s2)>>14;
-        s2 = s1;
-        s1 = av_clip_int16(s0);
-        *out++=s1;
-
-        d = in[i];
-        //d&=15; if (d&8) d-=16;
-        d = ((signed char)(d<<4) >> 4);
-        s0 = (BASEVOL*d*scale + SCALE1*s1 - SCALE2*s2)>>14;
+    for (i = 0; i < BLOCK_SAMPLES; i++) {
+        d  = get_sbits(&gb, 4);
+        s0 = ((d << COEFF_BITS) * scale + c->coeff[0] * s1 + c->coeff[1] * s2) >> COEFF_BITS;
         s2 = s1;
         s1 = av_clip_int16(s0);
-        *out++=s1;
+        *out = s1;
+        out += c->channels;
     }
     prev->s1 = s1;
     prev->s2 = s2;
 
+    return 0;
 }
 
-static void adx_decode_stereo(short *out,const unsigned char *in,PREV *prev)
-{
-    short tmp[32*2];
-    int i;
-
-    adx_decode(tmp   ,in   ,prev);
-    adx_decode(tmp+32,in+18,prev+1);
-    for(i=0;i<32;i++) {
-        out[i*2]   = tmp[i];
-        out[i*2+1] = tmp[i+32];
-    }
-}
-
-/* return data offset or 0 */
-static int adx_decode_header(AVCodecContext *avctx,const unsigned char *buf,size_t bufsize)
-{
-    int offset;
-
-    if (buf[0]!=0x80) return 0;
-    offset = (AV_RB32(buf)^0x80000000)+4;
-    if (bufsize<offset || memcmp(buf+offset-6,"(c)CRI",6)) return 0;
-
-    avctx->channels    = buf[7];
-    avctx->sample_rate = AV_RB32(buf+8);
-    avctx->bit_rate    = avctx->sample_rate*avctx->channels*18*8/32;
-
-    return offset;
-}
-
-static int adx_decode_frame(AVCodecContext *avctx,
-                void *data, int *data_size,
-                AVPacket *avpkt)
+static int adx_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+                            AVPacket *avpkt)
 {
-    const uint8_t *buf0 = avpkt->data;
-    int buf_size = avpkt->size;
-    ADXContext *c = avctx->priv_data;
-    short *samples = data;
-    const uint8_t *buf = buf0;
-    int rest = buf_size;
-
-    if (!c->header_parsed) {
-        int hdrsize = adx_decode_header(avctx,buf,rest);
-        if (hdrsize==0) return -1;
-        c->header_parsed = 1;
-        buf  += hdrsize;
-        rest -= hdrsize;
+    int buf_size        = avpkt->size;
+    ADXContext *c       = avctx->priv_data;
+    int16_t *samples    = data;
+    const uint8_t *buf  = avpkt->data;
+    int num_blocks, ch;
+
+    if (c->eof) {
+        *data_size = 0;
+        return buf_size;
     }
 
     /* 18 bytes of data are expanded into 32*2 bytes of audio,
        so guard against buffer overflows */
-    if(rest/18 > *data_size/64)
-        rest = (*data_size/64) * 18;
-
-    if (c->in_temp) {
-        int copysize = 18*avctx->channels - c->in_temp;
-        memcpy(c->dec_temp+c->in_temp,buf,copysize);
-        rest -= copysize;
-        buf  += copysize;
-        if (avctx->channels==1) {
-            adx_decode(samples,c->dec_temp,c->prev);
-            samples += 32;
-        } else {
-            adx_decode_stereo(samples,c->dec_temp,c->prev);
-            samples += 32*2;
-        }
+    num_blocks = buf_size / (BLOCK_SIZE * c->channels);
+    if (num_blocks > *data_size / (BLOCK_SAMPLES * c->channels)) {
+        buf_size   = (*data_size / (BLOCK_SAMPLES * c->channels)) * BLOCK_SIZE;
+        num_blocks = buf_size / (BLOCK_SIZE * c->channels);
     }
-    //
-    if (avctx->channels==1) {
-        while(rest>=18) {
-            adx_decode(samples,buf,c->prev);
-            rest-=18;
-            buf+=18;
-            samples+=32;
-        }
-    } else {
-        while(rest>=18*2) {
-            adx_decode_stereo(samples,buf,c->prev);
-            rest-=18*2;
-            buf+=18*2;
-            samples+=32*2;
+    if (!buf_size || buf_size % (BLOCK_SIZE * avctx->channels)) {
+        if (buf_size >= 4 && (AV_RB16(buf) & 0x8000)) {
+            c->eof = 1;
+            *data_size = 0;
+            return avpkt->size;
         }
+        return AVERROR_INVALIDDATA;
     }
-    //
-    c->in_temp = rest;
-    if (rest) {
-        memcpy(c->dec_temp,buf,rest);
-        buf+=rest;
+
+    while (num_blocks--) {
+        for (ch = 0; ch < c->channels; ch++) {
+            if (adx_decode(c, samples + ch, buf, ch)) {
+                c->eof = 1;
+                buf = avpkt->data + avpkt->size;
+                break;
+            }
+            buf_size -= BLOCK_SIZE;
+            buf      += BLOCK_SIZE;
+        }
+        samples += BLOCK_SAMPLES * c->channels;
     }
+
     *data_size = (uint8_t*)samples - (uint8_t*)data;
-//    printf("%d:%d ",buf-buf0,*data_size); fflush(stdout);
-    return buf-buf0;
+    return buf - avpkt->data;
 }
 
 AVCodec ff_adpcm_adx_decoder = {
@@ -173,6 +143,5 @@ AVCodec ff_adpcm_adx_decoder = {
     .priv_data_size = sizeof(ADXContext),
     .init           = adx_decode_init,
     .decode         = adx_decode_frame,
-    .long_name = NULL_IF_CONFIG_SMALL("SEGA CRI ADX ADPCM"),
+    .long_name      = NULL_IF_CONFIG_SMALL("SEGA CRI ADX ADPCM"),
 };
-
diff --git a/libavcodec/adxenc.c b/libavcodec/adxenc.c
index 893afe0981..51545fa06c 100644
--- a/libavcodec/adxenc.c
+++ b/libavcodec/adxenc.c
@@ -22,6 +22,7 @@
 #include "libavutil/intreadwrite.h"
 #include "avcodec.h"
 #include "adx.h"
+#include "put_bits.h"
 
 /**
  * @file
@@ -34,8 +35,10 @@
 
 /* 18 bytes <-> 32 samples */
 
-static void adx_encode(unsigned char *adx,const short *wav,PREV *prev)
+static void adx_encode(ADXContext *c, unsigned char *adx, const short *wav,
+                       ADXChannelState *prev)
 {
+    PutBitContext pb;
     int scale;
     int i;
     int s0,s1,s2,d;
@@ -47,7 +50,7 @@ static void adx_encode(unsigned char *adx,const short *wav,PREV *prev)
     s2 = prev->s2;
     for(i=0;i<32;i++) {
         s0 = wav[i];
-        d = ((s0<<14) - SCALE1*s1 + SCALE2*s2)/BASEVOL;
+        d = ((s0 << COEFF_BITS) - c->coeff[0] * s1 - c->coeff[1] * s2) >> COEFF_BITS;
         data[i]=d;
         if (max<d) max=d;
         if (min>d) min=d;
@@ -71,9 +74,10 @@ static void adx_encode(unsigned char *adx,const short *wav,PREV *prev)
 
     AV_WB16(adx, scale);
 
-    for(i=0;i<16;i++) {
-        adx[i+2] = ((data[i*2]/scale)<<4) | ((data[i*2+1]/scale)&0xf);
-    }
+    init_put_bits(&pb, adx + 2, 16);
+    for (i = 0; i < 32; i++)
+        put_sbits(&pb, 4, av_clip(data[i]/scale, -8, 7));
+    flush_put_bits(&pb);
 }
 
 static int adx_encode_header(AVCodecContext *avctx,unsigned char *buf,size_t bufsize)
@@ -101,19 +105,24 @@ static int adx_encode_header(AVCodecContext *avctx,unsigned char *buf,size_t buf
     } adxhdr; /* big endian */
     /* offset-6 "(c)CRI" */
 #endif
+    ADXContext *c = avctx->priv_data;
+
     AV_WB32(buf+0x00,0x80000000|0x20);
     AV_WB32(buf+0x04,0x03120400|avctx->channels);
     AV_WB32(buf+0x08,avctx->sample_rate);
     AV_WB32(buf+0x0c,0); /* FIXME: set after */
-    AV_WB32(buf+0x10,0x01040300);
-    AV_WB32(buf+0x14,0x00000000);
-    AV_WB32(buf+0x18,0x00000000);
-    memcpy(buf+0x1c,"\0\0(c)CRI",8);
+    AV_WB16(buf + 0x10, c->cutoff);
+    AV_WB32(buf + 0x12, 0x03000000);
+    AV_WB32(buf + 0x16, 0x00000000);
+    AV_WB32(buf + 0x1a, 0x00000000);
+    memcpy (buf + 0x1e, "(c)CRI", 6);
     return 0x20+4;
 }
 
 static av_cold int adx_encode_init(AVCodecContext *avctx)
 {
+    ADXContext *c = avctx->priv_data;
+
     if (avctx->channels > 2)
         return -1; /* only stereo or mono =) */
     avctx->frame_size = 32;
@@ -123,6 +132,10 @@ static av_cold int adx_encode_init(AVCodecContext *avctx)
 
 //    avctx->bit_rate = avctx->sample_rate*avctx->channels*18*8/32;
 
+    /* the cutoff can be adjusted, but this seems to work pretty well */
+    c->cutoff = 500;
+    ff_adx_calculate_coeffs(c->cutoff, avctx->sample_rate, COEFF_BITS, c->coeff);
+
     av_log(avctx, AV_LOG_DEBUG, "adx encode init\n");
 
     return 0;
@@ -158,7 +171,7 @@ static int adx_encode_frame(AVCodecContext *avctx,
 
     if (avctx->channels==1) {
         while(rest>=32) {
-            adx_encode(dst,samples,c->prev);
+            adx_encode(c, dst, samples, c->prev);
             dst+=18;
             samples+=32;
             rest-=32;
@@ -173,8 +186,8 @@ static int adx_encode_frame(AVCodecContext *avctx,
                 tmpbuf[i+32] = samples[i*2+1];
             }
 
-            adx_encode(dst,tmpbuf,c->prev);
-            adx_encode(dst+18,tmpbuf+32,c->prev+1);
+            adx_encode(c, dst,      tmpbuf,      c->prev);
+            adx_encode(c, dst + 18, tmpbuf + 32, c->prev + 1);
             dst+=18*2;
             samples+=32*2;
             rest-=32*2;
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 88fad5e936..dc78333a57 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -414,6 +414,7 @@ void avcodec_register_all(void)
     REGISTER_PARSER  (AAC, aac);
     REGISTER_PARSER  (AAC_LATM, aac_latm);
     REGISTER_PARSER  (AC3, ac3);
+    REGISTER_PARSER  (ADX, adx);
     REGISTER_PARSER  (CAVSVIDEO, cavsvideo);
     REGISTER_PARSER  (DCA, dca);
     REGISTER_PARSER  (DIRAC, dirac);
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c
index 9285472245..10f75212ff 100644
--- a/libavcodec/apedec.c
+++ b/libavcodec/apedec.c
@@ -690,7 +690,7 @@ static void do_apply_filter(APEContext *ctx, int version, APEFilter *f,
             /* Update the adaption coefficients */
             absres = FFABS(res);
             if (absres)
-                *f->adaptcoeffs = ((res & (1<<31)) - (1<<30)) >>
+                *f->adaptcoeffs = ((res & (-1<<31)) ^ (-1<<30)) >>
                                   (25 + (absres <= f->avg*3) + (absres <= f->avg*4/3));
             else
                 *f->adaptcoeffs = 0;
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 2fb200f047..c9165ad25e 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1259,7 +1259,7 @@ struct AVCodecInternal;
 typedef struct AVCodecContext {
     /**
      * information on struct for av_log
-     * - set by avcodec_alloc_context
+     * - set by avcodec_alloc_context3
      */
     const AVClass *av_class;
     /**
@@ -2959,8 +2959,8 @@ typedef struct AVCodecContext {
      * For SUBTITLE_ASS subtitle type, it should contain the whole ASS
      * [Script Info] and [V4+ Styles] section, plus the [Events] line and
      * the Format line following. It shouldn't include any Dialogue line.
-     * - encoding: Set/allocated/freed by user (before avcodec_open())
-     * - decoding: Set/allocated/freed by libavcodec (by avcodec_open())
+     * - encoding: Set/allocated/freed by user (before avcodec_open2())
+     * - decoding: Set/allocated/freed by libavcodec (by avcodec_open2())
      */
     uint8_t *subtitle_header;
     int subtitle_header_size;
@@ -3853,7 +3853,7 @@ AVCodecContext *avcodec_alloc_context2(enum AVMediaType);
  * resulting struct can be deallocated by simply calling av_free().
  *
  * @param codec if non-NULL, allocate private data and initialize defaults
- *              for the given codec. It is illegal to then call avcodec_open()
+ *              for the given codec. It is illegal to then call avcodec_open2()
  *              with a different codec.
  *
  * @return An AVCodecContext filled with default values or NULL on failure.
@@ -3864,7 +3864,7 @@ AVCodecContext *avcodec_alloc_context3(AVCodec *codec);
 /**
  * Copy the settings of the source AVCodecContext into the destination
  * AVCodecContext. The resulting destination codec context will be
- * unopened, i.e. you are required to call avcodec_open() before you
+ * unopened, i.e. you are required to call avcodec_open2() before you
  * can use this AVCodecContext to decode/encode video/audio data.
  *
  * @param dest target codec context, should be initialized with
@@ -3928,7 +3928,7 @@ enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum
 
 #if FF_API_THREAD_INIT
 /**
- * @deprecated Set s->thread_count before calling avcodec_open() instead of calling this.
+ * @deprecated Set s->thread_count before calling avcodec_open2() instead of calling this.
  */
 attribute_deprecated
 int avcodec_thread_init(AVCodecContext *s, int thread_count);
@@ -3974,7 +3974,7 @@ int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
 
 /**
  * Initialize the AVCodecContext to use the given AVCodec. Prior to using this
- * function the context has to be allocated with avcodec_alloc_context().
+ * function the context has to be allocated with avcodec_alloc_context3().
  *
  * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(),
  * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for
@@ -3989,9 +3989,9 @@ int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
  * if (!codec)
  *     exit(1);
  *
- * context = avcodec_alloc_context();
+ * context = avcodec_alloc_context3(codec);
  *
- * if (avcodec_open(context, codec, opts) < 0)
+ * if (avcodec_open2(context, codec, opts) < 0)
  *     exit(1);
  * @endcode
  *
diff --git a/libavcodec/cook.c b/libavcodec/cook.c
index 4c750134d0..6a076d9310 100644
--- a/libavcodec/cook.c
+++ b/libavcodec/cook.c
@@ -273,6 +273,10 @@ static av_cold void init_cplscales_table (COOKContext *q) {
  */
 
 static inline int decode_bytes(const uint8_t* inbuffer, uint8_t* out, int bytes){
+    static const uint32_t tab[4] = {
+        AV_BE2NE32C(0x37c511f2), AV_BE2NE32C(0xf237c511),
+        AV_BE2NE32C(0x11f237c5), AV_BE2NE32C(0xc511f237),
+    };
     int i, off;
     uint32_t c;
     const uint32_t* buf;
@@ -285,7 +289,7 @@ static inline int decode_bytes(const uint8_t* inbuffer, uint8_t* out, int bytes)
 
     off = (intptr_t)inbuffer & 3;
     buf = (const uint32_t*) (inbuffer - off);
-    c = av_be2ne32((0x37c511f2 >> (off*8)) | (0x37c511f2 << (32-(off*8))));
+    c = tab[off];
     bytes += 3 + off;
     for (i = 0; i < bytes/4; i++)
         obuf[i] = c ^ buf[i];
@@ -1075,7 +1079,7 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
             q->subpacket[s].subbands = bytestream_get_be16(&edata_ptr);
             extradata_size -= 8;
         }
-        if (extradata_size >= 8){
+        if (extradata_size >= 8) {
             bytestream_get_be32(&edata_ptr);    //Unknown unused
             q->subpacket[s].js_subband_start = bytestream_get_be16(&edata_ptr);
             q->subpacket[s].js_vlc_bits = bytestream_get_be16(&edata_ptr);
diff --git a/libavcodec/dnxhdenc.c b/libavcodec/dnxhdenc.c
index e1f99706f7..7021a70650 100644
--- a/libavcodec/dnxhdenc.c
+++ b/libavcodec/dnxhdenc.c
@@ -680,7 +680,8 @@ static int dnxhd_encode_rdo(AVCodecContext *avctx, DNXHDEncContext *ctx)
                 int qscale = 1;
                 int mb = y*ctx->m.mb_width+x;
                 for (q = 1; q < avctx->qmax; q++) {
-                    unsigned score = ctx->mb_rc[q][mb].bits*lambda+(ctx->mb_rc[q][mb].ssd<<LAMBDA_FRAC_BITS);
+                    unsigned score = ctx->mb_rc[q][mb].bits*lambda+
+                        ((unsigned)ctx->mb_rc[q][mb].ssd<<LAMBDA_FRAC_BITS);
                     if (score < min) {
                         min = score;
                         qscale = q;
@@ -707,7 +708,7 @@ static int dnxhd_encode_rdo(AVCodecContext *avctx, DNXHDEncContext *ctx)
                 lambda = (lambda+last_higher)>>1;
             else
                 lambda -= down_step;
-            down_step *= 5; // XXX tune ?
+            down_step = FFMIN((int64_t)down_step*5, INT_MAX);
             up_step = 1<<LAMBDA_FRAC_BITS;
             lambda = FFMAX(1, lambda);
             if (lambda == last_lower)
diff --git a/libavcodec/dv.c b/libavcodec/dv.c
index 462cbbed45..787bd6511e 100644
--- a/libavcodec/dv.c
+++ b/libavcodec/dv.c
@@ -364,7 +364,7 @@ typedef struct BlockInfo {
     uint8_t pos; /* position in block */
     void (*idct_put)(uint8_t *dest, int line_size, DCTELEM *block);
     uint8_t partial_bit_count;
-    uint16_t partial_bit_buffer;
+    uint32_t partial_bit_buffer;
     int shift_offset;
 } BlockInfo;
 
@@ -392,8 +392,7 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block)
 
     /* if we must parse a partial VLC, we do it here */
     if (partial_bit_count > 0) {
-        re_cache = ((unsigned)re_cache >> partial_bit_count) |
-                   (mb->partial_bit_buffer << (sizeof(re_cache) * 8 - partial_bit_count));
+        re_cache = re_cache >> partial_bit_count | mb->partial_bit_buffer;
         re_index -= partial_bit_count;
         mb->partial_bit_count = 0;
     }
@@ -416,7 +415,7 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block)
         if (re_index + vlc_len > last_index) {
             /* should be < 16 bits otherwise a codeword could have been parsed */
             mb->partial_bit_count = last_index - re_index;
-            mb->partial_bit_buffer = NEG_USR32(re_cache, mb->partial_bit_count);
+            mb->partial_bit_buffer = re_cache & ~(-1u >> mb->partial_bit_count);
             re_index = last_index;
             break;
         }
diff --git a/libavcodec/fraps.c b/libavcodec/fraps.c
index bcce97cb75..de98da72ea 100644
--- a/libavcodec/fraps.c
+++ b/libavcodec/fraps.c
@@ -112,9 +112,9 @@ static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
              */
             if(j) dst[i] += dst[i - stride];
             else if(Uoff) dst[i] += 0x80;
-            if(get_bits_left(&gb) < 0){
+            if (get_bits_left(&gb) < 0) {
                 free_vlc(&vlc);
-                return -1;
+                return AVERROR_INVALIDDATA;
             }
         }
         dst += stride;
diff --git a/libavcodec/gifdec.c b/libavcodec/gifdec.c
index 7a22fa702f..83cb36831b 100644
--- a/libavcodec/gifdec.c
+++ b/libavcodec/gifdec.c
@@ -96,11 +96,11 @@ static int gif_read_image(GifState *s)
     n = (1 << bits_per_pixel);
     spal = palette;
     for(i = 0; i < n; i++) {
-        s->image_palette[i] = (0xff << 24) | AV_RB24(spal);
+        s->image_palette[i] = (0xffu << 24) | AV_RB24(spal);
         spal += 3;
     }
     for(; i < 256; i++)
-        s->image_palette[i] = (0xff << 24);
+        s->image_palette[i] = (0xffu << 24);
     /* handle transparency */
     if (s->transparent_color_index >= 0)
         s->image_palette[s->transparent_color_index] = 0;
diff --git a/libavcodec/nuv.c b/libavcodec/nuv.c
index b10b8db248..7f8dc7501b 100644
--- a/libavcodec/nuv.c
+++ b/libavcodec/nuv.c
@@ -193,7 +193,7 @@ retry:
         int w, h, q, res;
         if (buf[0] != 'V' || buf_size < 12) {
             av_log(avctx, AV_LOG_ERROR, "invalid nuv video frame (wrong codec_tag?)\n");
-            return -1;
+            return AVERROR_INVALIDDATA;
         }
         w = AV_RL16(&buf[6]);
         h = AV_RL16(&buf[8]);
diff --git a/libavcodec/pthread.c b/libavcodec/pthread.c
index e3815ba6d3..75168e4598 100644
--- a/libavcodec/pthread.c
+++ b/libavcodec/pthread.c
@@ -658,7 +658,7 @@ static void frame_thread_free(AVCodecContext *avctx, int thread_count)
         pthread_cond_signal(&p->input_cond);
         pthread_mutex_unlock(&p->mutex);
 
-        if(p->thread)
+        if (p->thread)
             pthread_join(p->thread, NULL);
 
         if (codec->close)
diff --git a/libavcodec/qtrle.c b/libavcodec/qtrle.c
index bf3e5db062..c7a04c0520 100644
--- a/libavcodec/qtrle.c
+++ b/libavcodec/qtrle.c
@@ -332,7 +332,6 @@ static void qtrle_decode_32bpp(QtrleContext *s, int stream_ptr, int row_ptr, int
     int rle_code;
     int pixel_ptr;
     int row_inc = s->frame.linesize[0];
-    unsigned char a, r, g, b;
     unsigned int argb;
     unsigned char *rgb = s->frame.data[0];
     int pixel_limit = s->frame.linesize[0] * s->avctx->height;
@@ -352,16 +351,13 @@ static void qtrle_decode_32bpp(QtrleContext *s, int stream_ptr, int row_ptr, int
                 /* decode the run length code */
                 rle_code = -rle_code;
                 CHECK_STREAM_PTR(4);
-                a = s->buf[stream_ptr++];
-                r = s->buf[stream_ptr++];
-                g = s->buf[stream_ptr++];
-                b = s->buf[stream_ptr++];
-                argb = (a << 24) | (r << 16) | (g << 8) | (b << 0);
+                argb = AV_RB32(s->buf + stream_ptr);
+                stream_ptr += 4;
 
                 CHECK_PIXEL_PTR(rle_code * 4);
 
                 while (rle_code--) {
-                    *(unsigned int *)(&rgb[pixel_ptr]) = argb;
+                    AV_WN32A(rgb + pixel_ptr, argb);
                     pixel_ptr += 4;
                 }
             } else {
@@ -370,13 +366,10 @@ static void qtrle_decode_32bpp(QtrleContext *s, int stream_ptr, int row_ptr, int
 
                 /* copy pixels directly to output */
                 while (rle_code--) {
-                    a = s->buf[stream_ptr++];
-                    r = s->buf[stream_ptr++];
-                    g = s->buf[stream_ptr++];
-                    b = s->buf[stream_ptr++];
-                    argb = (a << 24) | (r << 16) | (g << 8) | (b << 0);
-                    *(unsigned int *)(&rgb[pixel_ptr]) = argb;
-                    pixel_ptr += 4;
+                    argb = AV_RB32(s->buf + stream_ptr);
+                    AV_WN32A(rgb + pixel_ptr, argb);
+                    stream_ptr += 4;
+                    pixel_ptr  += 4;
                 }
             }
         }
diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c
index 7df6a61eb9..2e2de85044 100644
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@@ -933,7 +933,7 @@ static void rv34_pred_4x4_block(RV34DecContext *r, uint8_t *dst, int stride, int
         if(itype == VERT_LEFT_PRED) itype = VERT_LEFT_PRED_RV40_NODOWN;
     }
     if(!right && up){
-        topleft = dst[-stride + 3] * 0x01010101;
+        topleft = dst[-stride + 3] * 0x01010101u;
         prev = (uint8_t*)&topleft;
     }
     r->h.pred4x4[itype](dst, prev, stride);
diff --git a/libavcodec/s3tc.c b/libavcodec/s3tc.c
index 546ee2156f..8e979a84ac 100644
--- a/libavcodec/s3tc.c
+++ b/libavcodec/s3tc.c
@@ -28,7 +28,7 @@
 static inline void dxt1_decode_pixels(const uint8_t *s, uint32_t *d,
                                       unsigned int qstride, unsigned int flag,
                                       uint64_t alpha) {
-    unsigned int x, y, c0, c1, a = (!flag * 255) << 24;
+    unsigned int x, y, c0, c1, a = (!flag * 255u) << 24;
     unsigned int rb0, rb1, rb2, rb3, g0, g1, g2, g3;
     uint32_t colors[4], pixels;
 
diff --git a/libavcodec/snow.c b/libavcodec/snow.c
index 87b3a8f402..0ce9b28479 100644
--- a/libavcodec/snow.c
+++ b/libavcodec/snow.c
@@ -290,8 +290,8 @@ static void mc_block(Plane *p, uint8_t *dst, const uint8_t *src, int stride, int
 void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, int sx, int sy, int b_w, int b_h, BlockNode *block, int plane_index, int w, int h){
     if(block->type & BLOCK_INTRA){
         int x, y;
-        const int color = block->color[plane_index];
-        const int color4= color*0x01010101;
+        const unsigned color  = block->color[plane_index];
+        const unsigned color4 = color*0x01010101;
         if(b_w==32){
             for(y=0; y < b_h; y++){
                 *(uint32_t*)&dst[0 + y*stride]= color4;
diff --git a/libavcodec/snow.h b/libavcodec/snow.h
index b1589ca52e..3a5cdc7175 100644
--- a/libavcodec/snow.h
+++ b/libavcodec/snow.h
@@ -154,8 +154,8 @@ typedef struct SnowContext{
     Plane plane[MAX_PLANES];
     BlockNode *block;
 #define ME_CACHE_SIZE 1024
-    int me_cache[ME_CACHE_SIZE];
-    int me_cache_generation;
+    unsigned me_cache[ME_CACHE_SIZE];
+    unsigned me_cache_generation;
     slice_buffer sb;
     int memc_only;
 
diff --git a/libavcodec/snowenc.c b/libavcodec/snowenc.c
index 6f00941389..ab31533f6d 100644
--- a/libavcodec/snowenc.c
+++ b/libavcodec/snowenc.c
@@ -958,7 +958,8 @@ static av_always_inline int check_block(SnowContext *s, int mb_x, int mb_y, int
     const int b_stride= s->b_width << s->block_max_depth;
     BlockNode *block= &s->block[mb_x + mb_y * b_stride];
     BlockNode backup= *block;
-    int rd, index, value;
+    unsigned value;
+    int rd, index;
 
     assert(mb_x>=0 && mb_y>=0);
     assert(mb_x<b_stride);
@@ -1003,7 +1004,8 @@ static av_always_inline int check_4block_inter(SnowContext *s, int mb_x, int mb_
     const int b_stride= s->b_width << s->block_max_depth;
     BlockNode *block= &s->block[mb_x + mb_y * b_stride];
     BlockNode backup[4]= {block[0], block[1], block[b_stride], block[b_stride+1]};
-    int rd, index, value;
+    unsigned value;
+    int rd, index;
 
     assert(mb_x>=0 && mb_y>=0);
     assert(mb_x<b_stride);
diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c
index abd8adc6d1..431913c57d 100644
--- a/libavcodec/svq1dec.c
+++ b/libavcodec/svq1dec.c
@@ -317,9 +317,9 @@ static int svq1_decode_motion_vector (GetBitContext *bitbuf, svq1_pmv *mv, svq1_
 
     /* add median of motion vector predictors and clip result */
     if (i == 1)
-      mv->y = ((diff + mid_pred(pmv[0]->y, pmv[1]->y, pmv[2]->y)) << 26) >> 26;
+      mv->y = sign_extend(diff + mid_pred(pmv[0]->y, pmv[1]->y, pmv[2]->y), 6);
     else
-      mv->x = ((diff + mid_pred(pmv[0]->x, pmv[1]->x, pmv[2]->x)) << 26) >> 26;
+      mv->x = sign_extend(diff + mid_pred(pmv[0]->x, pmv[1]->x, pmv[2]->x), 6);
   }
 
   return 0;
diff --git a/libavcodec/svq1enc.c b/libavcodec/svq1enc.c
index d9af5d80cc..9e6111a3c9 100644
--- a/libavcodec/svq1enc.c
+++ b/libavcodec/svq1enc.c
@@ -113,10 +113,6 @@ static void svq1_write_header(SVQ1Context *s, int frame_type)
 #define QUALITY_THRESHOLD 100
 #define THRESHOLD_MULTIPLIER 0.6
 
-#if HAVE_ALTIVEC
-#undef vector
-#endif
-
 static int encode_block(SVQ1Context *s, uint8_t *src, uint8_t *ref, uint8_t *decoded, int stride, int level, int threshold, int lambda, int intra){
     int count, y, x, i, j, split, best_mean, best_score, best_count;
     int best_vector[6];
@@ -160,7 +156,7 @@ static int encode_block(SVQ1Context *s, uint8_t *src, uint8_t *ref, uint8_t *dec
     }
 
     best_count=0;
-    best_score -= ((block_sum[0]*block_sum[0])>>(level+3));
+    best_score -= (int)(((unsigned)block_sum[0]*block_sum[0])>>(level+3));
     best_mean= (block_sum[0] + (size>>1)) >> (level+3);
 
     if(level<4){
diff --git a/libavcodec/version.h b/libavcodec/version.h
index 98eb48086c..31145db362 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -21,7 +21,7 @@
 #define AVCODEC_VERSION_H
 
 #define LIBAVCODEC_VERSION_MAJOR 53
-#define LIBAVCODEC_VERSION_MINOR 37
+#define LIBAVCODEC_VERSION_MINOR 38
 #define LIBAVCODEC_VERSION_MICRO  1
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
diff --git a/libavformat/Makefile b/libavformat/Makefile
index b597a65fd2..3581a3d2d5 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -25,6 +25,7 @@ OBJS-$(CONFIG_AC3_DEMUXER)               += ac3dec.o rawdec.o
 OBJS-$(CONFIG_AC3_MUXER)                 += rawenc.o
 OBJS-$(CONFIG_ACT_DEMUXER)               += act.o
 OBJS-$(CONFIG_ADF_DEMUXER)               += bintext.o sauce.o
+OBJS-$(CONFIG_ADX_DEMUXER)               += adxdec.o
 OBJS-$(CONFIG_ADTS_MUXER)                += adtsenc.o
 OBJS-$(CONFIG_AEA_DEMUXER)               += aea.o pcm.o
 OBJS-$(CONFIG_AIFF_DEMUXER)              += aiffdec.o riff.o pcm.o isom.o
diff --git a/libavformat/adxdec.c b/libavformat/adxdec.c
new file mode 100644
index 0000000000..eff26982ea
--- /dev/null
+++ b/libavformat/adxdec.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2011 Justin Ruggles
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * CRI ADX demuxer
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "libavcodec/adx.h"
+#include "avformat.h"
+
+#define BLOCK_SIZE    18
+#define BLOCK_SAMPLES 32
+
+typedef struct ADXDemuxerContext {
+    int header_size;
+} ADXDemuxerContext;
+
+static int adx_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+    ADXDemuxerContext *c = s->priv_data;
+    AVCodecContext *avctx = s->streams[0]->codec;
+    int ret, size;
+
+    size = BLOCK_SIZE * avctx->channels;
+
+    pkt->pos = avio_tell(s->pb);
+    pkt->stream_index = 0;
+
+    ret = av_get_packet(s->pb, pkt, size);
+    if (ret != size) {
+        av_free_packet(pkt);
+        return ret < 0 ? ret : AVERROR(EIO);
+    }
+    if (AV_RB16(pkt->data) & 0x8000) {
+        av_free_packet(pkt);
+        return AVERROR_EOF;
+    }
+    pkt->size     = size;
+    pkt->duration = 1;
+    pkt->pts      = (pkt->pos - c->header_size) / size;
+
+    return 0;
+}
+
+static int adx_read_header(AVFormatContext *s, AVFormatParameters *ap)
+{
+    ADXDemuxerContext *c = s->priv_data;
+    AVCodecContext *avctx;
+    int ret;
+
+    AVStream *st = avformat_new_stream(s, NULL);
+    if (!st)
+        return AVERROR(ENOMEM);
+    avctx = s->streams[0]->codec;
+
+    if (avio_rb16(s->pb) != 0x8000)
+        return AVERROR_INVALIDDATA;
+    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);
+    if (!avctx->extradata)
+        return AVERROR(ENOMEM);
+    if (avio_read(s->pb, avctx->extradata, c->header_size) < c->header_size) {
+        av_freep(&avctx->extradata);
+        return AVERROR(EIO);
+    }
+    avctx->extradata_size = c->header_size;
+
+    ret = avpriv_adx_decode_header(avctx, avctx->extradata,
+                                   avctx->extradata_size, &c->header_size,
+                                   NULL);
+    if (ret)
+        return ret;
+
+    st->codec->codec_type  = AVMEDIA_TYPE_AUDIO;
+    st->codec->codec_id    = s->iformat->value;
+
+    av_set_pts_info(st, 64, BLOCK_SAMPLES, avctx->sample_rate);
+
+    return 0;
+}
+
+AVInputFormat ff_adx_demuxer = {
+    .name           = "adx",
+    .long_name      = NULL_IF_CONFIG_SMALL("CRI ADX"),
+    .priv_data_size = sizeof(ADXDemuxerContext),
+    .read_header    = adx_read_header,
+    .read_packet    = adx_read_packet,
+    .extensions     = "adx",
+    .value          = CODEC_ID_ADPCM_ADX,
+};
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index 31fa5060f7..9ba459dd92 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -54,6 +54,7 @@ void av_register_all(void)
     REGISTER_DEMUXER  (ACT, act);
     REGISTER_DEMUXER  (ADF, adf);
     REGISTER_MUXER    (ADTS, adts);
+    REGISTER_DEMUXER  (ADX, adx);
     REGISTER_DEMUXER  (AEA, aea);
     REGISTER_MUXDEMUX (AIFF, aiff);
     REGISTER_MUXDEMUX (AMR, amr);
diff --git a/libavformat/segafilm.c b/libavformat/segafilm.c
index 0199ee1f5f..8a49bef1dc 100644
--- a/libavformat/segafilm.c
+++ b/libavformat/segafilm.c
@@ -172,6 +172,7 @@ static int film_read_header(AVFormatContext *s,
         if (film->audio_type == CODEC_ID_ADPCM_ADX) {
             st->codec->bits_per_coded_sample = 18 * 8 / 32;
             st->codec->block_align = st->codec->channels * 18;
+            st->need_parsing = AVSTREAM_PARSE_FULL;
         } else {
             st->codec->bits_per_coded_sample = film->audio_bits;
             st->codec->block_align = st->codec->channels *
diff --git a/libavformat/sol.c b/libavformat/sol.c
index cd5b2d75a4..7faa4e78b8 100644
--- a/libavformat/sol.c
+++ b/libavformat/sol.c
@@ -23,7 +23,7 @@
  * Based on documents from Game Audio Player and own research
  */
 
-#include "libavutil/bswap.h"
+#include "libavutil/intreadwrite.h"
 #include "avformat.h"
 #include "pcm.h"
 
@@ -33,8 +33,7 @@
 static int sol_probe(AVProbeData *p)
 {
     /* check file header */
-    uint16_t magic;
-    magic=av_le2ne16(*((uint16_t*)p->buf));
+    uint16_t magic = AV_RL32(p->buf);
     if ((magic == 0x0B8D || magic == 0x0C0D || magic == 0x0C8D) &&
         p->buf[2] == 'S' && p->buf[3] == 'O' &&
         p->buf[4] == 'L' && p->buf[5] == 0)
diff --git a/libavformat/version.h b/libavformat/version.h
index 5c7ed6863e..c98ff60399 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -24,7 +24,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR 53
-#define LIBAVFORMAT_VERSION_MINOR 21
+#define LIBAVFORMAT_VERSION_MINOR 22
 #define LIBAVFORMAT_VERSION_MICRO  0
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index 09e2edb933..71033d3df8 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -607,7 +607,7 @@ yuv2mono_X_c_template(SwsContext *c, const int16_t *lumFilter,
     const uint8_t * const d128=dither_8x8_220[y&7];
     uint8_t *g = c->table_gU[128] + c->table_gV[128];
     int i;
-    int acc = 0;
+    unsigned acc = 0;
 
     for (i = 0; i < dstW - 1; i += 2) {
         int j;