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libavformat/matroska: Write stream durations in metadata, in the format of mkvmerge. 

Compute individual stream durations in matroska muxer.
Write them as string tags in the same format as mkvmerge tool does.

Signed-off-by: Sasi Inguva <isasi@google.com>
This commit is contained in:
Sasi Inguva 2015-08-04 22:09:57 -07:00 committed by wm4
parent b1f78632c6
commit 31852540d4
6 changed files with 105 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

79
libavformat/matroskaenc.c
View File

@ -44,6 +44,7 @@
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/random_seed.h"
#include "libavutil/rational.h"
#include "libavutil/samplefmt.h"
#include "libavutil/sha.h"
#include "libavutil/stereo3d.h"
@ -131,6 +132,9 @@ typedef struct MatroskaMuxContext {
int64_t last_track_timestamp[MAX_TRACKS];
int64_t* stream_durations;
int64_t* stream_duration_offsets;
int allow_raw_vfw;
} MatroskaMuxContext;
@ -1151,12 +1155,12 @@ static int mkv_write_simpletag(AVIOContext *pb, AVDictionaryEntry *t)
return 0;
}
static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, unsigned int elementid,
unsigned int uid, ebml_master *tags)
static int mkv_write_tag_targets(AVFormatContext *s,
unsigned int elementid, unsigned int uid,
ebml_master *tags, ebml_master* tag)
{
MatroskaMuxContext *mkv = s->priv_data;
ebml_master tag, targets;
AVDictionaryEntry *t = NULL;
ebml_master targets;
int ret;
if (!tags->pos) {
@ -1166,11 +1170,24 @@ static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, unsigned int eleme
*tags = start_ebml_master(s->pb, MATROSKA_ID_TAGS, 0);
}
tag = start_ebml_master(s->pb, MATROSKA_ID_TAG, 0);
*tag = start_ebml_master(s->pb, MATROSKA_ID_TAG, 0);
targets = start_ebml_master(s->pb, MATROSKA_ID_TAGTARGETS, 0);
if (elementid)
put_ebml_uint(s->pb, elementid, uid);
end_ebml_master(s->pb, targets);
return 0;
}
static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, unsigned int elementid,
unsigned int uid, ebml_master *tags)
{
ebml_master tag;
int ret;
AVDictionaryEntry *t = NULL;
ret = mkv_write_tag_targets(s, elementid, uid, tags, &tag);
if (ret < 0)
return ret;
while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX))) {
if (av_strcasecmp(t->key, "title") &&
@ -1220,6 +1237,25 @@ static int mkv_write_tags(AVFormatContext *s)
if (ret < 0) return ret;
}
if (!mkv->is_live) {
for (i = 0; i < s->nb_streams; i++) {
ebml_master tag_target;
ebml_master tag;
mkv_write_tag_targets(s, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1, &tags, &tag_target);
tag = start_ebml_master(s->pb, MATROSKA_ID_SIMPLETAG, 0);
put_ebml_string(s->pb, MATROSKA_ID_TAGNAME, "DURATION");
mkv->stream_duration_offsets[i] = avio_tell(s->pb);
// Reserve space to write duration as a 20-byte string.
// 2 (ebml id) + 1 (data size) + 20 (data)
put_ebml_void(s->pb, 23);
end_ebml_master(s->pb, tag);
end_ebml_master(s->pb, tag_target);
}
}
for (i = 0; i < s->nb_chapters; i++) {
AVChapter *ch = s->chapters[i];
@ -1430,6 +1466,10 @@ static int mkv_write_header(AVFormatContext *s)
}
end_ebml_master(pb, segment_info);
// initialize stream_duration fields
mkv->stream_durations = av_mallocz(s->nb_streams * sizeof(int64_t));
mkv->stream_duration_offsets = av_mallocz(s->nb_streams * sizeof(int64_t));
ret = mkv_write_tracks(s);
if (ret < 0)
return ret;
@ -1801,6 +1841,11 @@ static int mkv_write_packet_internal(AVFormatContext *s, AVPacket *pkt, int add_
}
mkv->duration = FFMAX(mkv->duration, ts + duration);
if (mkv->stream_durations)
mkv->stream_durations[pkt->stream_index] =
FFMAX(mkv->stream_durations[pkt->stream_index], ts + duration);
return 0;
}
@ -1978,6 +2023,28 @@ static int mkv_write_trailer(AVFormatContext *s)
avio_seek(pb, mkv->duration_offset, SEEK_SET);
put_ebml_float(pb, MATROSKA_ID_DURATION, mkv->duration);
// update stream durations
if (mkv->stream_durations) {
for (int i = 0; i < s->nb_streams; ++i) {
AVStream *st = s->streams[i];
double duration_sec = mkv->stream_durations[i] * av_q2d(st->time_base);
char duration_string[20] = "";
av_log(s, AV_LOG_DEBUG, "stream %d end duration = %" PRIu64 "\n", i,
mkv->stream_durations[i]);
if (!mkv->is_live && mkv->stream_duration_offsets[i] > 0) {
avio_seek(pb, mkv->stream_duration_offsets[i], SEEK_SET);
snprintf(duration_string, 20, "%02d:%02d:%012.9f",
(int) duration_sec / 3600, ((int) duration_sec / 60) % 60,
fmod(duration_sec, 60));
put_ebml_binary(pb, MATROSKA_ID_TAGSTRING, duration_string, 20);
}
}
}
avio_seek(pb, currentpos, SEEK_SET);
}
@ -1987,6 +2054,8 @@ static int mkv_write_trailer(AVFormatContext *s)
av_freep(&mkv->tracks);
av_freep(&mkv->cues->entries);
av_freep(&mkv->cues);
av_freep(&mkv->stream_durations);
av_freep(&mkv->stream_duration_offsets);
return 0;
}

4
tests/fate/wavpack.mak
View File

@ -91,12 +91,12 @@ fate-wavpack-matroskamode: CMD = md5 -i $(TARGET_SAMPLES)/wavpack/special/matros
FATE_WAVPACK-$(call DEMMUX, WV, MATROSKA) += fate-wavpack-matroska_mux-mono
fate-wavpack-matroska_mux-mono: CMD = md5 -i $(TARGET_SAMPLES)/wavpack/num_channels/mono_16bit_int.wv -c copy -fflags +bitexact -f matroska
fate-wavpack-matroska_mux-mono: CMP = oneline
fate-wavpack-matroska_mux-mono: REF = a2987e2e51e01a35e47e7da13eb47a35
fate-wavpack-matroska_mux-mono: REF = 4befcc41dab6c690a15d0c396c324468
FATE_WAVPACK-$(call DEMMUX, WV, MATROSKA) += fate-wavpack-matroska_mux-61
fate-wavpack-matroska_mux-61: CMD = md5 -i $(TARGET_SAMPLES)/wavpack/num_channels/eva_2.22_6.1_16bit-partial.wv -c copy -fflags +bitexact -f matroska
fate-wavpack-matroska_mux-61: CMP = oneline
fate-wavpack-matroska_mux-61: REF = ffba4ddea1ba71f7a5901d9ed1a267be
fate-wavpack-matroska_mux-61: REF = 7fedbfc3b9ea7348761db664626c29f4
FATE_SAMPLES_AVCONV += $(FATE_WAVPACK-yes)
fate-wavpack: $(FATE_WAVPACK-yes)

4
tests/ref/acodec/tta
View File

@ -1,4 +1,4 @@
aeeb0f2e75d044dbe2f89b7e70a54c82 *tests/data/fate/acodec-tta.matroska
331080 tests/data/fate/acodec-tta.matroska
6c260836d7a32e4bd714453a3546c0d5 *tests/data/fate/acodec-tta.matroska
331148 tests/data/fate/acodec-tta.matroska
95e54b261530a1bcf6de6fe3b21dc5f6 *tests/data/fate/acodec-tta.out.wav
stddev: 0.00 PSNR:999.99 MAXDIFF: 0 bytes: 1058400/ 1058400

2
tests/ref/fate/binsub-mksenc
View File

@ -1 +1 @@
2dad5f63688ec613a04e94c8d4d167db
37a212f8d56ad71e7466d5129f88e756

8
tests/ref/lavf/mkv
View File

@ -1,6 +1,6 @@
bab98f5a04a9f7991fb960041c996478 *./tests/data/lavf/lavf.mkv
472668 ./tests/data/lavf/lavf.mkv
7c6509f597fb57bab002cbceec960011 *./tests/data/lavf/lavf.mkv
472872 ./tests/data/lavf/lavf.mkv
./tests/data/lavf/lavf.mkv CRC=0xec6c3c68
c93950920d4ee57eb3ff5ba0cf0c8b19 *./tests/data/lavf/lavf.mkv
320412 ./tests/data/lavf/lavf.mkv
5f8cb4b7e98610347dd8d0d58a828a0f *./tests/data/lavf/lavf.mkv
320548 ./tests/data/lavf/lavf.mkv
./tests/data/lavf/lavf.mkv CRC=0xec6c3c68

44
tests/ref/seek/lavf-mkv
View File

@ -1,48 +1,48 @@
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 661 size: 208
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 797 size: 208
ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 877 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1013 size: 27837
ret: 0 st:-1 flags:1 ts: 1.894167
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292291 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292427 size: 27834
ret: 0 st: 0 flags:0 ts: 0.788000
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292291 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292427 size: 27834
ret: 0 st: 0 flags:1 ts:-0.317000
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 877 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1013 size: 27837
ret:-1 st: 1 flags:0 ts: 2.577000
ret: 0 st: 1 flags:1 ts: 1.471000
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320132 size: 209
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320268 size: 209
ret: 0 st:-1 flags:0 ts: 0.365002
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146844 size: 27925
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146980 size: 27925
ret: 0 st:-1 flags:1 ts:-0.740831
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 877 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1013 size: 27837
ret:-1 st: 0 flags:0 ts: 2.153000
ret: 0 st: 0 flags:1 ts: 1.048000
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292291 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292427 size: 27834
ret: 0 st: 1 flags:0 ts:-0.058000
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 661 size: 208
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 797 size: 208
ret: 0 st: 1 flags:1 ts: 2.836000
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320132 size: 209
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320268 size: 209
ret:-1 st:-1 flags:0 ts: 1.730004
ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146844 size: 27925
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146980 size: 27925
ret: 0 st: 0 flags:0 ts:-0.482000
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 877 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1013 size: 27837
ret: 0 st: 0 flags:1 ts: 2.413000
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292291 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292427 size: 27834
ret:-1 st: 1 flags:0 ts: 1.307000
ret: 0 st: 1 flags:1 ts: 0.201000
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 661 size: 208
ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 797 size: 208
ret: 0 st:-1 flags:0 ts:-0.904994
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 877 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1013 size: 27837
ret: 0 st:-1 flags:1 ts: 1.989173
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292291 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292427 size: 27834
ret: 0 st: 0 flags:0 ts: 0.883000
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292291 size: 27834
ret: 0 st: 0 flags:1 dts: 0.971000 pts: 0.971000 pos: 292427 size: 27834
ret: 0 st: 0 flags:1 ts:-0.222000
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 877 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1013 size: 27837
ret:-1 st: 1 flags:0 ts: 2.672000
ret: 0 st: 1 flags:1 ts: 1.566000
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320132 size: 209
ret: 0 st: 1 flags:1 dts: 0.993000 pts: 0.993000 pos: 320268 size: 209
ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146844 size: 27925
ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146980 size: 27925
ret: 0 st:-1 flags:1 ts:-0.645825
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 877 size: 27837
ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 1013 size: 27837