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Diffstat (limited to 'libavformat/matroskadec.c')
-rw-r--r--libavformat/matroskadec.c98
1 files changed, 77 insertions, 21 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 70bb765ab4..e89cc83296 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1,21 +1,21 @@
/*
* Matroska file demuxer
- * Copyright (c) 2003-2008 The Libav Project
+ * Copyright (c) 2003-2008 The FFmpeg Project
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -112,7 +112,8 @@ typedef struct {
uint64_t display_height;
uint64_t pixel_width;
uint64_t pixel_height;
- uint64_t fourcc;
+ EbmlBin color_space;
+ uint64_t stereo_mode;
} MatroskaTrackVideo;
typedef struct {
@@ -133,6 +134,15 @@ typedef struct {
} MatroskaTrackAudio;
typedef struct {
+ uint64_t uid;
+ uint64_t type;
+} MatroskaTrackPlane;
+
+typedef struct {
+ EbmlList combine_planes;
+} MatroskaTrackOperation;
+
+typedef struct {
uint64_t num;
uint64_t uid;
uint64_t type;
@@ -146,6 +156,7 @@ typedef struct {
uint64_t flag_forced;
MatroskaTrackVideo video;
MatroskaTrackAudio audio;
+ MatroskaTrackOperation operation;
EbmlList encodings;
AVStream *stream;
@@ -294,14 +305,14 @@ static EbmlSyntax matroska_track_video[] = {
{ MATROSKA_ID_VIDEODISPLAYHEIGHT, EBML_UINT, 0, offsetof(MatroskaTrackVideo,display_height) },
{ MATROSKA_ID_VIDEOPIXELWIDTH, EBML_UINT, 0, offsetof(MatroskaTrackVideo,pixel_width) },
{ MATROSKA_ID_VIDEOPIXELHEIGHT, EBML_UINT, 0, offsetof(MatroskaTrackVideo,pixel_height) },
- { MATROSKA_ID_VIDEOCOLORSPACE, EBML_UINT, 0, offsetof(MatroskaTrackVideo,fourcc) },
+ { MATROSKA_ID_VIDEOCOLORSPACE, EBML_BIN, 0, offsetof(MatroskaTrackVideo,color_space) },
+ { MATROSKA_ID_VIDEOSTEREOMODE, EBML_UINT, 0, offsetof(MatroskaTrackVideo,stereo_mode) },
{ MATROSKA_ID_VIDEOPIXELCROPB, EBML_NONE },
{ MATROSKA_ID_VIDEOPIXELCROPT, EBML_NONE },
{ MATROSKA_ID_VIDEOPIXELCROPL, EBML_NONE },
{ MATROSKA_ID_VIDEOPIXELCROPR, EBML_NONE },
{ MATROSKA_ID_VIDEODISPLAYUNIT, EBML_NONE },
{ MATROSKA_ID_VIDEOFLAGINTERLACED,EBML_NONE },
- { MATROSKA_ID_VIDEOSTEREOMODE, EBML_NONE },
{ MATROSKA_ID_VIDEOASPECTRATIO, EBML_NONE },
{ 0 }
};
@@ -333,6 +344,22 @@ static EbmlSyntax matroska_track_encodings[] = {
{ 0 }
};
+static EbmlSyntax matroska_track_plane[] = {
+ { MATROSKA_ID_TRACKPLANEUID, EBML_UINT, 0, offsetof(MatroskaTrackPlane,uid) },
+ { MATROSKA_ID_TRACKPLANETYPE, EBML_UINT, 0, offsetof(MatroskaTrackPlane,type) },
+ { 0 }
+};
+
+static EbmlSyntax matroska_track_combine_planes[] = {
+ { MATROSKA_ID_TRACKPLANE, EBML_NEST, sizeof(MatroskaTrackPlane), offsetof(MatroskaTrackOperation,combine_planes), {.n=matroska_track_plane} },
+ { 0 }
+};
+
+static EbmlSyntax matroska_track_operation[] = {
+ { MATROSKA_ID_TRACKCOMBINEPLANES, EBML_NEST, 0, 0, {.n=matroska_track_combine_planes} },
+ { 0 }
+};
+
static EbmlSyntax matroska_track[] = {
{ MATROSKA_ID_TRACKNUMBER, EBML_UINT, 0, offsetof(MatroskaTrack,num) },
{ MATROSKA_ID_TRACKNAME, EBML_UTF8, 0, offsetof(MatroskaTrack,name) },
@@ -347,6 +374,7 @@ static EbmlSyntax matroska_track[] = {
{ MATROSKA_ID_TRACKFLAGFORCED, EBML_UINT, 0, offsetof(MatroskaTrack,flag_forced), {.u=0} },
{ MATROSKA_ID_TRACKVIDEO, EBML_NEST, 0, offsetof(MatroskaTrack,video), {.n=matroska_track_video} },
{ MATROSKA_ID_TRACKAUDIO, EBML_NEST, 0, offsetof(MatroskaTrack,audio), {.n=matroska_track_audio} },
+ { MATROSKA_ID_TRACKOPERATION, EBML_NEST, 0, offsetof(MatroskaTrack,operation), {.n=matroska_track_operation} },
{ MATROSKA_ID_TRACKCONTENTENCODINGS,EBML_NEST, 0, 0, {.n=matroska_track_encodings} },
{ MATROSKA_ID_TRACKFLAGENABLED, EBML_NONE },
{ MATROSKA_ID_TRACKFLAGLACING, EBML_NONE },
@@ -490,7 +518,7 @@ static EbmlSyntax matroska_segments[] = {
static EbmlSyntax matroska_blockgroup[] = {
{ MATROSKA_ID_BLOCK, EBML_BIN, 0, offsetof(MatroskaBlock,bin) },
{ MATROSKA_ID_SIMPLEBLOCK, EBML_BIN, 0, offsetof(MatroskaBlock,bin) },
- { MATROSKA_ID_BLOCKDURATION, EBML_UINT, 0, offsetof(MatroskaBlock,duration), {.u=AV_NOPTS_VALUE} },
+ { MATROSKA_ID_BLOCKDURATION, EBML_UINT, 0, offsetof(MatroskaBlock,duration) },
{ MATROSKA_ID_BLOCKREFERENCE, EBML_UINT, 0, offsetof(MatroskaBlock,reference) },
{ 1, EBML_UINT, 0, offsetof(MatroskaBlock,non_simple), {.u=1} },
{ 0 }
@@ -553,7 +581,7 @@ static int ebml_read_num(MatroskaDemuxContext *matroska, AVIOContext *pb,
* use it safely here to catch EOS. */
if (!(total = avio_r8(pb))) {
/* we might encounter EOS here */
- if (!pb->eof_reached) {
+ if (!url_feof(pb)) {
int64_t pos = avio_tell(pb);
av_log(matroska->ctx, AV_LOG_ERROR,
"Read error at pos. %"PRIu64" (0x%"PRIx64")\n",
@@ -1013,7 +1041,8 @@ static void matroska_fix_ass_packet(MatroskaDemuxContext *matroska,
char *line, *layer, *ptr = pkt->data, *end = ptr+pkt->size;
for (; *ptr!=',' && ptr<end-1; ptr++);
if (*ptr == ',')
- layer = ++ptr;
+ ptr++;
+ layer = ptr;
for (; *ptr!=',' && ptr<end-1; ptr++);
if (*ptr == ',') {
int64_t end_pts = pkt->pts + display_duration;
@@ -1259,20 +1288,25 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
uint64_t max_start = 0;
Ebml ebml = { 0 };
AVStream *st;
- int i, j, res;
+ int i, j, k, res;
matroska->ctx = s;
/* First read the EBML header. */
if (ebml_parse(matroska, ebml_syntax, &ebml)
|| ebml.version > EBML_VERSION || ebml.max_size > sizeof(uint64_t)
- || ebml.id_length > sizeof(uint32_t) || ebml.doctype_version > 2) {
+ || ebml.id_length > sizeof(uint32_t) || ebml.doctype_version > 3) {
av_log(matroska->ctx, AV_LOG_ERROR,
"EBML header using unsupported features\n"
"(EBML version %"PRIu64", doctype %s, doc version %"PRIu64")\n",
ebml.version, ebml.doctype, ebml.doctype_version);
ebml_free(ebml_syntax, &ebml);
return AVERROR_PATCHWELCOME;
+ } else if (ebml.doctype_version == 3) {
+ av_log(matroska->ctx, AV_LOG_WARNING,
+ "EBML header using unsupported features\n"
+ "(EBML version %"PRIu64", doctype %s, doc version %"PRIu64")\n",
+ ebml.version, ebml.doctype, ebml.doctype_version);
}
for (i = 0; i < FF_ARRAY_ELEMS(matroska_doctypes); i++)
if (!strcmp(ebml.doctype, matroska_doctypes[i]))
@@ -1303,6 +1337,7 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
uint8_t *extradata = NULL;
int extradata_size = 0;
int extradata_offset = 0;
+ uint32_t fourcc = 0;
AVIOContext b;
/* Apply some sanity checks. */
@@ -1324,6 +1359,8 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
track->video.display_width = track->video.pixel_width;
if (!track->video.display_height)
track->video.display_height = track->video.pixel_height;
+ if (track->video.color_space.size == 4)
+ fourcc = AV_RL32(track->video.color_space.data);
} else if (track->type == MATROSKA_TRACK_TYPE_AUDIO) {
if (!track->audio.out_samplerate)
track->audio.out_samplerate = track->audio.samplerate;
@@ -1383,8 +1420,8 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
&& track->codec_priv.size >= 40
&& track->codec_priv.data != NULL) {
track->ms_compat = 1;
- track->video.fourcc = AV_RL32(track->codec_priv.data + 16);
- codec_id = ff_codec_get_id(ff_codec_bmp_tags, track->video.fourcc);
+ fourcc = AV_RL32(track->codec_priv.data + 16);
+ codec_id = ff_codec_get_id(ff_codec_bmp_tags, fourcc);
extradata_offset = 40;
} else if (!strcmp(track->codec_id, "A_MS/ACM")
&& track->codec_priv.size >= 14
@@ -1400,8 +1437,8 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
} else if (!strcmp(track->codec_id, "V_QUICKTIME")
&& (track->codec_priv.size >= 86)
&& (track->codec_priv.data != NULL)) {
- track->video.fourcc = AV_RL32(track->codec_priv.data);
- codec_id=ff_codec_get_id(codec_movvideo_tags, track->video.fourcc);
+ fourcc = AV_RL32(track->codec_priv.data);
+ codec_id = ff_codec_get_id(codec_movvideo_tags, fourcc);
} else if (codec_id == CODEC_ID_PCM_S16BE) {
switch (track->audio.bitdepth) {
case 8: codec_id = CODEC_ID_PCM_U8; break;
@@ -1519,8 +1556,10 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
}
if (track->type == MATROSKA_TRACK_TYPE_VIDEO) {
+ MatroskaTrackPlane *planes = track->operation.combine_planes.elem;
+
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_tag = track->video.fourcc;
+ st->codec->codec_tag = fourcc;
st->codec->width = track->video.pixel_width;
st->codec->height = track->video.pixel_height;
av_reduce(&st->sample_aspect_ratio.num,
@@ -1532,6 +1571,25 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
st->need_parsing = AVSTREAM_PARSE_HEADERS;
if (track->default_duration)
st->avg_frame_rate = av_d2q(1000000000.0/track->default_duration, INT_MAX);
+
+ /* export stereo mode flag as metadata tag */
+ if (track->video.stereo_mode && track->video.stereo_mode < MATROSKA_VIDEO_STEREO_MODE_COUNT)
+ av_dict_set(&st->metadata, "stereo_mode", matroska_video_stereo_mode[track->video.stereo_mode], 0);
+
+ /* if we have virtual track, mark the real tracks */
+ for (j=0; j < track->operation.combine_planes.nb_elem; j++) {
+ char buf[32];
+ if (planes[j].type >= MATROSKA_VIDEO_STEREO_PLANE_COUNT)
+ continue;
+ snprintf(buf, sizeof(buf), "%s_%d",
+ matroska_video_stereo_plane[planes[j].type], i);
+ for (k=0; k < matroska->tracks.nb_elem; k++)
+ if (planes[j].uid == tracks[k].uid) {
+ av_dict_set(&s->streams[k]->metadata,
+ "stereo_mode", buf, 0);
+ break;
+ }
+ }
} else if (track->type == MATROSKA_TRACK_TYPE_AUDIO) {
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->sample_rate = track->audio.out_samplerate;
@@ -1663,7 +1721,7 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
st = track->stream;
if (st->discard >= AVDISCARD_ALL)
return res;
- if (duration == AV_NOPTS_VALUE)
+ if (!duration)
duration = track->default_duration / matroska->time_scale;
block_time = AV_RB16(data);
@@ -1898,8 +1956,6 @@ static int matroska_parse_cluster(MatroskaDemuxContext *matroska)
for (i=0; i<blocks_list->nb_elem && !res; i++)
if (blocks[i].bin.size > 0 && blocks[i].bin.data) {
int is_keyframe = blocks[i].non_simple ? !blocks[i].reference : -1;
- if (!blocks[i].non_simple)
- blocks[i].duration = AV_NOPTS_VALUE;
res=matroska_parse_block(matroska,
blocks[i].bin.data, blocks[i].bin.size,
blocks[i].bin.pos, cluster.timecode,
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-15 05:02:33 +0000