Merge remote-tracking branch 'qatar/master'

* qatar/master:
  vc1: use an enum for Frame Coding Mode
  doc: cleanup filter section
  indeo3: error out if no motion vector is set.
  x86inc: Flag shufps as an floating-point instruction for the AVX emulation code.
  mpegaudio: do not use init_static_data() for initializing tables.
  musepack: fix signed shift overflow in mpc_read_packet()
  mov: Make format string match variable type.
  wmavoice: Make format string match variable type.
  vc1: select interlaced scan table by FCM element
  Generalize RIFF INFO tag support; support reading INFO tag in wav
  pthread: track thread existence in a separate variable.

Conflicts:
	doc/filters.texi
	libavcodec/pthread.c
	libavformat/avi.c
	libavformat/riff.c
	libavformat/riff.h
	libavformat/wav.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

doc/filters.texi

@@ -1401,8 +1401,7 @@ gradfun=1.2
 
 Flip the input video horizontally.
 
-For example to horizontally flip the video in input with
-@file{ffmpeg}:
+For example to horizontally flip the input video with @command{ffmpeg}:
 @example
 ffmpeg -i in.avi -vf "hflip" out.avi
 @end example

libavcodec/dxva2_vc1.c

@@ -68,7 +68,7 @@ static void fill_picture_parameters(AVCodecContext *avctx,
         pp->bPicStructure      |= 0x01;
     if (s->picture_structure & PICT_BOTTOM_FIELD)
         pp->bPicStructure      |= 0x02;
-    pp->bSecondField            = v->interlace && v->fcm != 0x03 && !s->first_field;
+    pp->bSecondField            = v->interlace && v->fcm != ILACE_FIELD && !s->first_field;
     pp->bPicIntra               = s->pict_type == AV_PICTURE_TYPE_I;
     pp->bPicBackwardPrediction  = s->pict_type == AV_PICTURE_TYPE_B;
     pp->bBidirectionalAveragingMode = (1                                           << 7) |
@@ -100,7 +100,7 @@ static void fill_picture_parameters(AVCodecContext *avctx,
                                   (s->resync_marker  << 4) |
                                   (v->rangered       << 3) |
                                   (s->max_b_frames       );
-    pp->bPicExtrapolation       = (!v->interlace || v->fcm == 0x00) ? 1 : 2;
+    pp->bPicExtrapolation       = (!v->interlace || v->fcm == PROGRESSIVE) ? 1 : 2;
     pp->bPicDeblocked           = ((v->profile != PROFILE_ADVANCED && v->rangeredfrm) << 5) |
                                   (s->loop_filter                                     << 1);
     pp->bPicDeblockConfined     = (v->postprocflag             << 7) |

libavcodec/indeo3.c

@@ -759,6 +759,8 @@ static int parse_bintree(Indeo3DecodeContext *ctx, AVCodecContext *avctx,
                     av_log(avctx, AV_LOG_ERROR, "SkipCell procedure not implemented yet!\n");
 
                 CHECK_CELL
+                if(!curr_cell.mv_ptr)
+                    return AVERROR_INVALIDDATA;
                 copy_cell(ctx, plane, &curr_cell);
                 return 0;
             }

libavcodec/mpegaudiodec.c

@@ -269,7 +269,7 @@ static inline int l3_unscale(int value, int exponent)
     return m;
 }
 
-static void decode_init_static(AVCodec *codec)
+static av_cold void decode_init_static(void)
 {
     int i, j, k;
     int offset;
@@ -462,8 +462,14 @@ static void decode_init_static(AVCodec *codec)
 
 static av_cold int decode_init(AVCodecContext * avctx)
 {
+    static int initialized_tables = 0;
     MPADecodeContext *s = avctx->priv_data;
 
+    if (!initialized_tables) {
+        decode_init_static();
+        initialized_tables = 1;
+    }
+
     s->avctx = avctx;
 
     ff_mpadsp_init(&s->mpadsp);
@@ -1996,7 +2002,6 @@ AVCodec ff_mp1_decoder = {
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = CODEC_ID_MP1,
     .priv_data_size = sizeof(MPADecodeContext),
-    .init_static_data = decode_init_static,
     .init           = decode_init,
     .decode         = decode_frame,
 #if FF_API_PARSE_FRAME
@@ -2012,7 +2017,6 @@ AVCodec ff_mp2_decoder = {
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = CODEC_ID_MP2,
     .priv_data_size = sizeof(MPADecodeContext),
-    .init_static_data = decode_init_static,
     .init           = decode_init,
     .decode         = decode_frame,
 #if FF_API_PARSE_FRAME
@@ -2028,7 +2032,6 @@ AVCodec ff_mp3_decoder = {
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = CODEC_ID_MP3,
     .priv_data_size = sizeof(MPADecodeContext),
-    .init_static_data = decode_init_static,
     .init           = decode_init,
     .decode         = decode_frame,
 #if FF_API_PARSE_FRAME
@@ -2044,7 +2047,6 @@ AVCodec ff_mp3adu_decoder = {
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = CODEC_ID_MP3ADU,
     .priv_data_size = sizeof(MPADecodeContext),
-    .init_static_data = decode_init_static,
     .init           = decode_init,
     .decode         = decode_frame_adu,
 #if FF_API_PARSE_FRAME
@@ -2060,7 +2062,6 @@ AVCodec ff_mp3on4_decoder = {
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = CODEC_ID_MP3ON4,
     .priv_data_size = sizeof(MP3On4DecodeContext),
-    .init_static_data = decode_init_static,
     .init           = decode_init_mp3on4,
     .close          = decode_close_mp3on4,
     .decode         = decode_frame_mp3on4,

libavcodec/mpegaudiodec_float.c

@@ -28,7 +28,6 @@ AVCodec ff_mp1float_decoder = {
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = CODEC_ID_MP1,
     .priv_data_size = sizeof(MPADecodeContext),
-    .init_static_data = decode_init_static,
     .init           = decode_init,
     .decode         = decode_frame,
 #if FF_API_PARSE_FRAME
@@ -44,7 +43,6 @@ AVCodec ff_mp2float_decoder = {
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = CODEC_ID_MP2,
     .priv_data_size = sizeof(MPADecodeContext),
-    .init_static_data = decode_init_static,
     .init           = decode_init,
     .decode         = decode_frame,
 #if FF_API_PARSE_FRAME
@@ -60,7 +58,6 @@ AVCodec ff_mp3float_decoder = {
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = CODEC_ID_MP3,
     .priv_data_size = sizeof(MPADecodeContext),
-    .init_static_data = decode_init_static,
     .init           = decode_init,
     .decode         = decode_frame,
 #if FF_API_PARSE_FRAME
@@ -76,7 +73,6 @@ AVCodec ff_mp3adufloat_decoder = {
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = CODEC_ID_MP3ADU,
     .priv_data_size = sizeof(MPADecodeContext),
-    .init_static_data = decode_init_static,
     .init           = decode_init,
     .decode         = decode_frame_adu,
 #if FF_API_PARSE_FRAME
@@ -92,7 +88,6 @@ AVCodec ff_mp3on4float_decoder = {
     .type           = AVMEDIA_TYPE_AUDIO,
     .id             = CODEC_ID_MP3ON4,
     .priv_data_size = sizeof(MP3On4DecodeContext),
-    .init_static_data = decode_init_static,
     .init           = decode_init_mp3on4,
     .close          = decode_close_mp3on4,
     .decode         = decode_frame_mp3on4,

libavcodec/pthread.c

@@ -72,7 +72,7 @@ typedef struct PerThreadContext {
     struct FrameThreadContext *parent;
 
     pthread_t      thread;
-    int thread_created;
+    int            thread_init;
     pthread_cond_t input_cond;      ///< Used to wait for a new packet from the main thread.
     pthread_cond_t progress_cond;   ///< Used by child threads to wait for progress to change.
     pthread_cond_t output_cond;     ///< Used by the main thread to wait for frames to finish.
@@ -659,9 +659,9 @@ static void frame_thread_free(AVCodecContext *avctx, int thread_count)
         pthread_cond_signal(&p->input_cond);
         pthread_mutex_unlock(&p->mutex);
 
-        if (p->thread_created)
+        if (p->thread_init)
             pthread_join(p->thread, NULL);
-        p->thread_created=0;
+        p->thread_init=0;
 
         if (codec->close)
             codec->close(p->avctx);
@@ -765,8 +765,8 @@ static int frame_thread_init(AVCodecContext *avctx)
 
         if (err) goto error;
 
-        p->thread_created= !pthread_create(&p->thread, NULL, frame_worker_thread, p);
-        if(!p->thread_created)
+        p->thread_init= !pthread_create(&p->thread, NULL, frame_worker_thread, p);
+        if(!p->thread_init)
             goto error;
     }
 

libavcodec/vc1.c

@@ -841,14 +841,14 @@ int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
     if (v->interlace) {
         v->fcm = decode012(gb);
         if (v->fcm) {
-            if (v->fcm == 2)
+            if (v->fcm == ILACE_FIELD)
                 v->field_mode = 1;
             if (!v->warn_interlaced++)
                 av_log(v->s.avctx, AV_LOG_ERROR,
                        "Interlaced frames/fields support is incomplete\n");
         }
     } else {
-        v->fcm = 0;
+        v->fcm = PROGRESSIVE;
     }
 
     if (v->field_mode) {
@@ -962,7 +962,7 @@ int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
     switch (v->s.pict_type) {
     case AV_PICTURE_TYPE_I:
     case AV_PICTURE_TYPE_BI:
-        if (v->fcm == 1) { //interlace frame picture
+        if (v->fcm == ILACE_FRAME) { //interlace frame picture
             status = bitplane_decoding(v->fieldtx_plane, &v->fieldtx_is_raw, v);
             if (status < 0)
                 return -1;
@@ -1003,7 +1003,7 @@ int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
                 v->dmvrange = get_unary(gb, 0, 3);
             else
                 v->dmvrange = 0;
-            if (v->fcm == 1) { // interlaced frame picture
+            if (v->fcm == ILACE_FRAME) { // interlaced frame picture
                 v->fourmvswitch = get_bits1(gb);
                 v->intcomp      = get_bits1(gb);
                 if (v->intcomp) {
@@ -1043,7 +1043,7 @@ int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
             v->tt_index = 1;
         else
             v->tt_index = 2;
-        if (v->fcm != 1) {
+        if (v->fcm != ILACE_FRAME) {
             int mvmode;
             mvmode     = get_unary(gb, 1, 4);
             lowquant   = (v->pq > 12) ? 0 : 1;
@@ -1078,7 +1078,7 @@ int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
                            || (v->mv_mode == MV_PMODE_INTENSITY_COMP
                                && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
         }
-        if (v->fcm == 0) { // progressive
+        if (v->fcm == PROGRESSIVE) { // progressive
             if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
                  v->mv_mode2 == MV_PMODE_MIXED_MV)
                 || v->mv_mode == MV_PMODE_MIXED_MV) {
@@ -1100,7 +1100,7 @@ int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
             /* Hopefully this is correct for P frames */
             v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
             v->cbpcy_vlc        = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
-        } else if (v->fcm == 1) { // frame interlaced
+        } else if (v->fcm == ILACE_FRAME) { // frame interlaced
             v->qs_last          = v->s.quarter_sample;
             v->s.quarter_sample = 1;
             v->s.mspel          = 1;
@@ -1140,7 +1140,7 @@ int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
         break;
     case AV_PICTURE_TYPE_B:
         // TODO: implement interlaced frame B picture decoding
-        if (v->fcm == 1)
+        if (v->fcm == ILACE_FRAME)
             return -1;
         if (v->extended_mv)
             v->mvrange = get_unary(gb, 0, 3);

libavcodec/vc1.h

@@ -161,6 +161,16 @@ enum COTypes {
 };
 //@}
 
+/**
+ * FCM Frame Coding Mode
+ * @note some content might be marked interlaced
+ * but have fcm set to 0 as well (e.g. HD-DVD)
+ */
+enum FrameCodingMode {
+    PROGRESSIVE = 0,    ///<  in the bitstream is reported as 00b
+    ILACE_FRAME,        ///<  in the bitstream is reported as 10b
+    ILACE_FIELD         ///<  in the bitstream is reported as 11b
+};
 
 /** The VC1 Context
  * @todo Change size wherever another size is more efficient
@@ -296,7 +306,7 @@ typedef struct VC1Context{
 
     /** Frame decoding info for Advanced profile */
     //@{
-    uint8_t fcm; ///< 0->Progressive, 2->Frame-Interlace, 3->Field-Interlace
+    enum FrameCodingMode fcm;
     uint8_t numpanscanwin;
     uint8_t tfcntr;
     uint8_t rptfrm, tff, rff;

libavcodec/vc1dec.c

@@ -501,7 +501,8 @@ static void vc1_mc_1mv(VC1Context *v, int dir)
         uvmy = uvmy - 2 + 4 * v->cur_field_type;
     }
 
-    if (v->fastuvmc && (v->fcm != 1)) { // fastuvmc shall be ignored for interlaced frame picture
+    // fastuvmc shall be ignored for interlaced frame picture
+    if (v->fastuvmc && (v->fcm != ILACE_FRAME)) {
         uvmx = uvmx + ((uvmx < 0) ? (uvmx & 1) : -(uvmx & 1));
         uvmy = uvmy + ((uvmy < 0) ? (uvmy & 1) : -(uvmy & 1));
     }
@@ -685,7 +686,7 @@ static void vc1_mc_4mv_luma(VC1Context *v, int n, int dir)
     uint8_t *srcY;
     int dxy, mx, my, src_x, src_y;
     int off;
-    int fieldmv = (v->fcm == 1) ? v->blk_mv_type[s->block_index[n]] : 0;
+    int fieldmv = (v->fcm == ILACE_FRAME) ? v->blk_mv_type[s->block_index[n]] : 0;
     int v_edge_pos = s->v_edge_pos >> v->field_mode;
 
     if (!v->field_mode && !v->s.last_picture.f.data[0])
@@ -744,7 +745,7 @@ static void vc1_mc_4mv_luma(VC1Context *v, int n, int dir)
             v->mv_f[1][s->block_index[k] + v->blocks_off] = f;
     }
 
-    if (v->fcm == 1) {  // not sure if needed for other types of picture
+    if (v->fcm == ILACE_FRAME) {  // not sure if needed for other types of picture
         int qx, qy;
         int width  = s->avctx->coded_width;
         int height = s->avctx->coded_height >> 1;
@@ -761,7 +762,7 @@ static void vc1_mc_4mv_luma(VC1Context *v, int n, int dir)
             my -= 8 * (qy - height - 1);
     }
 
-    if ((v->fcm == 1) && fieldmv)
+    if ((v->fcm == ILACE_FRAME) && fieldmv)
         off = ((n > 1) ? s->linesize : 0) + (n & 1) * 8;
     else
         off = s->linesize * 4 * (n & 2) + (n & 1) * 8;
@@ -779,7 +780,7 @@ static void vc1_mc_4mv_luma(VC1Context *v, int n, int dir)
         src_y = av_clip(src_y, -16, s->mb_height * 16);
     } else {
         src_x = av_clip(src_x, -17, s->avctx->coded_width);
-        if (v->fcm == 1) {
+        if (v->fcm == ILACE_FRAME) {
             if (src_y & 1)
                 src_y = av_clip(src_y, -17, s->avctx->coded_height + 1);
             else
@@ -2917,7 +2918,7 @@ static int vc1_decode_i_block_adv(VC1Context *v, DCTELEM block[64], int n,
         int k;
 
         if (v->s.ac_pred) {
-            if (!use_pred && v->fcm == 1) {
+            if (!use_pred && v->fcm == ILACE_FRAME) {
                 zz_table = v->zzi_8x8;
             } else {
                 if (!dc_pred_dir) // top
@@ -2926,7 +2927,7 @@ static int vc1_decode_i_block_adv(VC1Context *v, DCTELEM block[64], int n,
                     zz_table = v->zz_8x8[3];
             }
         } else {
-            if (v->fcm != 1)
+            if (v->fcm != ILACE_FRAME)
                 zz_table = v->zz_8x8[1];
             else
                 zz_table = v->zzi_8x8;
@@ -3136,10 +3137,10 @@ static int vc1_decode_intra_block(VC1Context *v, DCTELEM block[64], int n,
             i += skip;
             if (i > 63)
                 break;
-            if (v->fcm == 0)
+            if (v->fcm == PROGRESSIVE)
                 block[v->zz_8x8[0][i++]] = value;
             else {
-                if (use_pred && (v->fcm == 1)) {
+                if (use_pred && (v->fcm == ILACE_FRAME)) {
                     if (!dc_pred_dir) // top
                         block[v->zz_8x8[2][i++]] = value;
                     else // left
@@ -4739,12 +4740,12 @@ static void vc1_decode_p_blocks(VC1Context *v)
         for (; s->mb_x < s->mb_width; s->mb_x++) {
             ff_update_block_index(s);
 
-            if (v->fcm == 2)
+            if (v->fcm == ILACE_FIELD)
                 vc1_decode_p_mb_intfi(v);
-            else if (v->fcm == 1)
+            else if (v->fcm == ILACE_FRAME)
                 vc1_decode_p_mb_intfr(v);
             else vc1_decode_p_mb(v);
-            if (s->mb_y != s->start_mb_y && apply_loop_filter && v->fcm == 0)
+            if (s->mb_y != s->start_mb_y && apply_loop_filter && v->fcm == PROGRESSIVE)
                 vc1_apply_p_loop_filter(v);
             if (get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) {
                 // TODO: may need modification to handle slice coding
@@ -4811,7 +4812,7 @@ static void vc1_decode_b_blocks(VC1Context *v)
         for (; s->mb_x < s->mb_width; s->mb_x++) {
             ff_update_block_index(s);
 
-            if (v->fcm == 2)
+            if (v->fcm == ILACE_FIELD)
                 vc1_decode_b_mb_intfi(v);
             else
                 vc1_decode_b_mb(v);

libavcodec/wmavoice.c

@@ -1795,7 +1795,7 @@ static int synth_superframe(AVCodecContext *ctx,
     out_size = n_samples * av_get_bytes_per_sample(ctx->sample_fmt);
     if (*data_size < out_size) {
         av_log(ctx, AV_LOG_ERROR,
-               "Output buffer too small (%d given - %zu needed)\n",
+               "Output buffer too small (%d given - %d needed)\n",
                *data_size, out_size);
         return -1;
     }

libavformat/Makefile

@@ -43,8 +43,8 @@ OBJS-$(CONFIG_ASS_DEMUXER)               += assdec.o
 OBJS-$(CONFIG_ASS_MUXER)                 += assenc.o
 OBJS-$(CONFIG_AU_DEMUXER)                += au.o pcm.o
 OBJS-$(CONFIG_AU_MUXER)                  += au.o
-OBJS-$(CONFIG_AVI_DEMUXER)               += avidec.o riff.o avi.o
-OBJS-$(CONFIG_AVI_MUXER)                 += avienc.o riff.o avi.o
+OBJS-$(CONFIG_AVI_DEMUXER)               += avidec.o riff.o
+OBJS-$(CONFIG_AVI_MUXER)                 += avienc.o riff.o
 OBJS-$(CONFIG_AVISYNTH)                  += avisynth.o
 OBJS-$(CONFIG_AVM2_MUXER)                += swfenc.o
 OBJS-$(CONFIG_AVS_DEMUXER)               += avs.o vocdec.o voc.o

libavformat/avi.c

-/*
- * AVI common data
- * Copyright (c) 2010 Anton Khirnov
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "avi.h"
-
-const AVMetadataConv ff_avi_metadata_conv[] = {
-    { "IART", "artist"    },
-    { "ICMT", "comment"   },
-    { "ICOP", "copyright" },
-    { "ICRD", "date"      },
-    { "IGNR", "genre"     },
-    { "ILNG", "language"  },
-    { "INAM", "title"     },
-    { "IPRD", "album"     },
-    { "IPRT", "track"     },
-    { "ISFT", "encoder"   },
-    { "ITCH", "encoded_by"},
-    { "strn", "title"     },
-    { 0 },
-};
-
-const char ff_avi_tags[][5] = {
-    "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI",
-    "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD",
-    "IPRT", "ISBJ", "ISFT", "ISHP", "ISRC", "ISRF", "ITCH",
-    {0}
-};

libavformat/avi.h

@@ -21,8 +21,6 @@
 #ifndef AVFORMAT_AVI_H
 #define AVFORMAT_AVI_H
 
-#include "metadata.h"
-
 #define AVIF_HASINDEX           0x00000010        // Index at end of file?
 #define AVIF_MUSTUSEINDEX       0x00000020
 #define AVIF_ISINTERLEAVED      0x00000100
@@ -37,11 +35,4 @@
 /* index flags */
 #define AVIIF_INDEX             0x10
 
-extern const AVMetadataConv ff_avi_metadata_conv[];
-
-/**
- * A list of AVI info tags.
- */
-extern const char ff_avi_tags[][5];
-
 #endif /* AVFORMAT_AVI_H */

libavformat/avidec.c

@@ -99,6 +99,11 @@ static const char avi_headers[][8] = {
     { 0 }
 };
 
+static const AVMetadataConv avi_metadata_conv[] = {
+    { "strn", "title" },
+    { 0 },
+};
+
 static int avi_load_index(AVFormatContext *s);
 static int guess_ni_flag(AVFormatContext *s);
 
@@ -287,15 +292,6 @@ static int avi_read_tag(AVFormatContext *s, AVStream *st, uint32_t tag, uint32_t
                             AV_DICT_DONT_STRDUP_VAL);
 }
 
-static void avi_read_info(AVFormatContext *s, uint64_t end)
-{
-    while (avio_tell(s->pb) < end) {
-        uint32_t tag  = avio_rl32(s->pb);
-        uint32_t size = avio_rl32(s->pb);
-        avi_read_tag(s, NULL, tag, size);
-    }
-}
-
 static const char months[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
                                     "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
 
@@ -408,7 +404,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
                 goto end_of_header;
             }
             else if (tag1 == MKTAG('I', 'N', 'F', 'O'))
-                avi_read_info(s, list_end);
+                ff_read_riff_info(s, size - 4);
             else if (tag1 == MKTAG('n', 'c', 'd', 't'))
                 avi_read_nikon(s, list_end);
 
@@ -778,7 +774,8 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
         clean_index(s);
     }
 
-    ff_metadata_conv_ctx(s, NULL, ff_avi_metadata_conv);
+    ff_metadata_conv_ctx(s, NULL, avi_metadata_conv);
+    ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv);
 
     return 0;
 }

libavformat/avienc.c

@@ -378,9 +378,9 @@ static int avi_write_header(AVFormatContext *s)
 
     list2 = ff_start_tag(pb, "LIST");
     ffio_wfourcc(pb, "INFO");
-    ff_metadata_conv(&s->metadata, ff_avi_metadata_conv, NULL);
-    for (i = 0; *ff_avi_tags[i]; i++) {
-        if ((t = av_dict_get(s->metadata, ff_avi_tags[i], NULL, AV_DICT_MATCH_CASE)))
+    ff_metadata_conv(&s->metadata, ff_riff_info_conv, NULL);
+    for (i = 0; *ff_riff_tags[i]; i++) {
+        if ((t = av_dict_get(s->metadata, ff_riff_tags[i], NULL, AV_DICT_MATCH_CASE)))
             avi_write_info_tag(s->pb, t->key, t->value);
     }
     ff_end_tag(pb, list2);

libavformat/mov.c

@@ -90,7 +90,7 @@ static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
     avio_r8(pb);
     avio_r8(pb);
 
-    snprintf(buf, sizeof(buf), "%hu", avio_r8(pb));
+    snprintf(buf, sizeof(buf), "%d", avio_r8(pb));
     av_dict_set(&c->fc->metadata, key, buf, 0);
 
     return 0;
@@ -101,7 +101,7 @@ static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
 {
     char buf[16];
 
-    snprintf(buf, sizeof(buf), "%hu", avio_r8(pb));
+    snprintf(buf, sizeof(buf), "%d", avio_r8(pb));
     av_dict_set(&c->fc->metadata, key, buf, 0);
 
     return 0;

libavformat/mpc.c

@@ -117,7 +117,8 @@ static int mpc_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
     MPCContext *c = s->priv_data;
     int ret, size, size2, curbits, cur = c->curframe;
-    int64_t tmp, pos;
+    unsigned tmp;
+    int64_t pos;
 
     if (c->curframe >= c->fcount && c->fcount)
         return -1;
@@ -134,8 +135,7 @@ static int mpc_read_packet(AVFormatContext *s, AVPacket *pkt)
     if(curbits <= 12){
         size2 = (tmp >> (12 - curbits)) & 0xFFFFF;
     }else{
-        tmp = (tmp << 32) | avio_rl32(s->pb);
-        size2 = (tmp >> (44 - curbits)) & 0xFFFFF;
+        size2 = (tmp << (curbits - 12) | avio_rl32(s->pb) >> (44 - curbits)) & 0xFFFFF;
     }
     curbits += 20;
     avio_seek(s->pb, pos, SEEK_SET);

libavformat/riff.c

@@ -357,6 +357,28 @@ const AVCodecGuid ff_codec_wav_guids[] = {
     {CODEC_ID_NONE}
 };
 
+const AVMetadataConv ff_riff_info_conv[] = {
+    { "IART", "artist"    },
+    { "ICMT", "comment"   },
+    { "ICOP", "copyright" },
+    { "ICRD", "date"      },
+    { "IGNR", "genre"     },
+    { "ILNG", "language"  },
+    { "INAM", "title"     },
+    { "IPRD", "album"     },
+    { "IPRT", "track"     },
+    { "ISFT", "encoder"   },
+    { "ITCH", "encoded_by"},
+    { 0 },
+};
+
+const char ff_riff_tags[][5] = {
+    "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI",
+    "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD",
+    "IPRT", "ISBJ", "ISFT", "ISHP", "ISRC", "ISRF", "ITCH",
+    {0}
+};
+
 #if CONFIG_MUXERS
 int64_t ff_start_tag(AVIOContext *pb, const char *tag)
 {
@@ -656,3 +678,49 @@ enum CodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid)
     }
     return CODEC_ID_NONE;
 }
+
+int ff_read_riff_info(AVFormatContext *s, int64_t size)
+{
+    int64_t start, end, cur;
+    AVIOContext *pb = s->pb;
+
+    start = avio_tell(pb);
+    end = start + size;
+
+    while ((cur = avio_tell(pb)) >= 0 && cur <= end - 8 /* = tag + size */) {
+        uint32_t chunk_code;
+        int64_t chunk_size;
+        char key[5] = {0};
+        char *value;
+
+        chunk_code = avio_rl32(pb);
+        chunk_size = avio_rl32(pb);
+        if (chunk_size > end || end - chunk_size < cur || chunk_size == UINT_MAX) {
+            av_log(s, AV_LOG_ERROR, "too big INFO subchunk\n");
+            return AVERROR_INVALIDDATA;
+        }
+
+        chunk_size += (chunk_size & 1);
+
+        value = av_malloc(chunk_size + 1);
+        if (!value) {
+            av_log(s, AV_LOG_ERROR, "out of memory, unable to read INFO tag\n");
+            return AVERROR(ENOMEM);
+        }
+
+        AV_WL32(key, chunk_code);
+
+        if (avio_read(pb, value, chunk_size) != chunk_size) {
+            av_freep(key);
+            av_freep(value);
+            av_log(s, AV_LOG_ERROR, "premature end of file while reading INFO tag\n");
+            return AVERROR_INVALIDDATA;
+        }
+
+        value[chunk_size] = 0;
+
+        av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
+    }
+
+    return 0;
+}

libavformat/riff.h

@@ -31,6 +31,10 @@
 #include "libavcodec/avcodec.h"
 #include "avio.h"
 #include "internal.h"
+#include "metadata.h"
+
+extern const AVMetadataConv ff_riff_info_conv[];
+extern const char ff_riff_tags[][5];
 
 int64_t ff_start_tag(AVIOContext *pb, const char *tag);
 void ff_end_tag(AVIOContext *pb, int64_t start);
@@ -56,6 +60,8 @@ void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssiz
 
 typedef uint8_t ff_asf_guid[16];
 
+int ff_read_riff_info(AVFormatContext *s, int64_t size);
+
 #define FF_PRI_GUID \
     "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
 #define FF_ARG_GUID(g) \

libavformat/wav.c

@@ -33,7 +33,6 @@
 #include "pcm.h"
 #include "riff.h"
 #include "avio.h"
-#include "avio_internal.h"
 #include "metadata.h"
 
 typedef struct {
@@ -231,7 +230,7 @@ AVOutputFormat ff_wav_muxer = {
 
 #if CONFIG_WAV_DEMUXER
 
-static int64_t next_tag(AVIOContext *pb, unsigned int *tag)
+static int64_t next_tag(AVIOContext *pb, uint32_t *tag)
 {
     *tag = avio_rl32(pb);
     return avio_rl32(pb);
@@ -392,7 +391,7 @@ static int wav_read_header(AVFormatContext *s,
     int64_t size, av_uninit(data_size);
     int64_t sample_count=0;
     int rf64;
-    unsigned int tag;
+    uint32_t tag, list_type;
     AVIOContext *pb = s->pb;
     AVStream *st = NULL;
     WAVContext *wav = s->priv_data;
@@ -504,6 +503,18 @@ static int wav_read_header(AVFormatContext *s,
             avio_rl24(pb);
             wav->smv_frames_per_jpeg = avio_rl24(pb);
             goto break_loop;
+        case MKTAG('L', 'I', 'S', 'T'):
+            list_type = avio_rl32(pb);
+            if (size <= 4) {
+                av_log(s, AV_LOG_ERROR, "too short LIST");
+                return AVERROR_INVALIDDATA;
+            }
+            switch (list_type) {
+            case MKTAG('I', 'N', 'F', 'O'):
+                if ((ret = ff_read_riff_info(s, size - 4)) < 0)
+                    return ret;
+            }
+            break;
         }
 
         /* seek to next tag unless we know that we'll run into EOF */
@@ -526,6 +537,7 @@ break_loop:
         st->duration = sample_count;
 
     ff_metadata_conv_ctx(s, NULL, wav_metadata_conv);
+    ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv);
 
     return 0;
 }