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authorMichael Niedermayer <michaelni@gmx.at>2014-05-01 04:27:17 +0200
committerMichael Niedermayer <michaelni@gmx.at>2014-05-01 04:29:40 +0200
commit8bf90562f6cb0f723d5935de1eb4c785037807f9 (patch)
treed42af402601cfcb5cc45a4a284999ff79002f110 /libavformat/matroskadec.c
parentfeaa31d35499395ec292015ce02e2a5494c8283e (diff)
parenteb3b5501e8b85bfea09d533314cb6920efc42639 (diff)
Merge commit 'eb3b5501e8b85bfea09d533314cb6920efc42639'
* commit 'eb3b5501e8b85bfea09d533314cb6920efc42639': matroskadec: read the CodecDelay element Conflicts: libavformat/matroska.h libavformat/matroskadec.c See: d6f86d74edfa6e1464ddc613726559269bf1dc7b Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/matroskadec.c')
-rw-r--r--libavformat/matroskadec.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 7c10f33e6e..3a6bfa9ff2 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -45,6 +45,7 @@
#include "libavutil/intfloat.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/lzo.h"
+#include "libavutil/mathematics.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/mpeg4audio.h"
@@ -170,12 +171,12 @@ typedef struct {
uint64_t default_duration;
uint64_t flag_default;
uint64_t flag_forced;
- uint64_t codec_delay;
uint64_t seek_preroll;
MatroskaTrackVideo video;
MatroskaTrackAudio audio;
MatroskaTrackOperation operation;
EbmlList encodings;
+ uint64_t codec_delay;
AVStream *stream;
int64_t end_timecode;
@@ -410,6 +411,7 @@ static EbmlSyntax matroska_track[] = {
{ MATROSKA_ID_TRACKTYPE, EBML_UINT, 0, offsetof(MatroskaTrack, type) },
{ MATROSKA_ID_CODECID, EBML_STR, 0, offsetof(MatroskaTrack, codec_id) },
{ MATROSKA_ID_CODECPRIVATE, EBML_BIN, 0, offsetof(MatroskaTrack, codec_priv) },
+ { MATROSKA_ID_CODECDELAY, EBML_UINT, 0, offsetof(MatroskaTrack, codec_delay) },
{ MATROSKA_ID_TRACKLANGUAGE, EBML_UTF8, 0, offsetof(MatroskaTrack, language), { .s = "eng" } },
{ MATROSKA_ID_TRACKDEFAULTDURATION, EBML_UINT, 0, offsetof(MatroskaTrack, default_duration) },
{ MATROSKA_ID_TRACKTIMECODESCALE, EBML_FLOAT, 0, offsetof(MatroskaTrack, time_scale), { .f = 1.0 } },
@@ -420,7 +422,6 @@ static EbmlSyntax matroska_track[] = {
{ 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_TRACKMAXBLKADDID, EBML_UINT, 0, offsetof(MatroskaTrack, max_block_additional_id) },
- { MATROSKA_ID_CODECDELAY, EBML_UINT, 0, offsetof(MatroskaTrack, codec_delay) },
{ MATROSKA_ID_SEEKPREROLL, EBML_UINT, 0, offsetof(MatroskaTrack, seek_preroll) },
{ MATROSKA_ID_TRACKFLAGENABLED, EBML_NONE },
{ MATROSKA_ID_TRACKFLAGLACING, EBML_NONE },
@@ -1931,6 +1932,11 @@ static int matroska_read_header(AVFormatContext *s)
avpriv_set_pts_info(st, 64, matroska->time_scale * track->time_scale,
1000 * 1000 * 1000); /* 64 bit pts in ns */
+ /* convert the delay from ns to the track timebase */
+ track->codec_delay = av_rescale_q(track->codec_delay,
+ (AVRational){ 1, 1000000000 },
+ st->time_base);
+
st->codec->codec_id = codec_id;
if (strcmp(track->language, "und"))
@@ -2013,7 +2019,7 @@ static int matroska_read_header(AVFormatContext *s)
st->need_parsing = AVSTREAM_PARSE_HEADERS;
if (track->codec_delay > 0) {
st->codec->delay = av_rescale_q(track->codec_delay,
- (AVRational){1, 1000000000},
+ st->time_base,
(AVRational){1, st->codec->sample_rate});
}
if (track->seek_preroll > 0) {
@@ -2702,7 +2708,7 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
if (cluster_time != (uint64_t) -1 &&
(block_time >= 0 || cluster_time >= -block_time)) {
- timecode = cluster_time + block_time;
+ timecode = cluster_time + block_time - track->codec_delay;
if (track->type == MATROSKA_TRACK_TYPE_SUBTITLE &&
timecode < track->end_timecode)
is_keyframe = 0; /* overlapping subtitles are not key frame */