[FFmpeg-cvslog] libavformat/matroska: Write stream durations in metadata, in the format of mkvmerge.
Sasi Inguva
git at videolan.org
Wed Aug 5 22:37:10 CEST 2015
ffmpeg | branch: master | Sasi Inguva <isasi at google.com> | Tue Aug 4 22:09:57 2015 -0700| [31852540d4fba0c4e8a16d0b3ddff08fc98e48fd] | committer: wm4
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 at google.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=31852540d4fba0c4e8a16d0b3ddff08fc98e48fd
---
libavformat/matroskaenc.c | 79 +++++++++++++++++++++++++++++++++++++++---
tests/fate/wavpack.mak | 4 +--
tests/ref/acodec/tta | 4 +--
tests/ref/fate/binsub-mksenc | 2 +-
tests/ref/lavf/mkv | 8 ++---
tests/ref/seek/lavf-mkv | 44 +++++++++++------------
6 files changed, 105 insertions(+), 36 deletions(-)
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index 2d0d5f6..703abc3 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -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;
}
diff --git a/tests/fate/wavpack.mak b/tests/fate/wavpack.mak
index 240f5ea..a825a02 100644
--- a/tests/fate/wavpack.mak
+++ b/tests/fate/wavpack.mak
@@ -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)
diff --git a/tests/ref/acodec/tta b/tests/ref/acodec/tta
index b4b9611..0f60345 100644
--- a/tests/ref/acodec/tta
+++ b/tests/ref/acodec/tta
@@ -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
diff --git a/tests/ref/fate/binsub-mksenc b/tests/ref/fate/binsub-mksenc
index c473497..128ca31 100644
--- a/tests/ref/fate/binsub-mksenc
+++ b/tests/ref/fate/binsub-mksenc
@@ -1 +1 @@
-2dad5f63688ec613a04e94c8d4d167db
+37a212f8d56ad71e7466d5129f88e756
diff --git a/tests/ref/lavf/mkv b/tests/ref/lavf/mkv
index edbfe60..39a48d8 100644
--- a/tests/ref/lavf/mkv
+++ b/tests/ref/lavf/mkv
@@ -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
diff --git a/tests/ref/seek/lavf-mkv b/tests/ref/seek/lavf-mkv
index 11275d6..af13ddb 100644
--- a/tests/ref/seek/lavf-mkv
+++ b/tests/ref/seek/lavf-mkv
@@ -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
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