[FFmpeg-cvslog] avformat/matroskaenc: Don't ignore tags of chapters written late
Andreas Rheinhardt
git at videolan.org
Tue May 19 06:02:08 EEST 2020
ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Wed Apr 29 10:27:23 2020 +0200| [4ebfc13c338423cf48f1a1266c890422367f7775] | committer: Andreas Rheinhardt
avformat/matroskaenc: Don't ignore tags of chapters written late
The Matroska muxer writes the Chapters early when chapters were already
available when writing the header; in this case any tags pertaining to
these chapters get written, too.
Yet if no chapters had been supplied before writing the header, Chapters
can also be written when writing the trailer if any are supplied. Tags
belonging to these chapters were up until now completely ignored.
This commit changes this: Writing the tags belonging to chapters has
been moved to mkv_write_chapters(). If mkv_write_tags() has not been
called yet (i.e. when chapters are written when writing the header),
the AVIOContext for writing the ordinary Tags element is used, but not
output, as this is left to mkv_write_tags() in order to only write one
Tags element. Yet if mkv_write_tags() has already been called,
mkv_write_chapters() will output a Tags element of its own which only
contains the tags for chapters.
When chapters are available initially, the corresponding tags will now
be the first tags in the Tags element; but the ordering of tags in Tags
is irrelevant anyway.
This commit also makes chapter_id_offset local to mkv_write_chapters()
as it is used only there and not reused at all.
Potentially writing a second Tags element means that the maximum number
of SeekHead entries had to be incremented. All the changes to FATE
result from the ensuing increase in the amount of space reserved for the
SeekHead (21 bytes more).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4ebfc13c338423cf48f1a1266c890422367f7775
---
libavformat/matroskaenc.c | 70 ++++++++++++++++-----------
tests/fate/matroska.mak | 2 +-
tests/fate/wavpack.mak | 4 +-
tests/ref/fate/aac-autobsf-adtstoasc | 4 +-
tests/ref/fate/binsub-mksenc | 2 +-
tests/ref/fate/matroska-flac-extradata-update | 4 +-
tests/ref/fate/rgb24-mkv | 4 +-
tests/ref/fate/webm-dash-chapters | 4 +-
tests/ref/lavf-fate/av1.mkv | 4 +-
tests/ref/lavf/mka | 4 +-
tests/ref/lavf/mkv | 4 +-
tests/ref/lavf/mkv_attachment | 4 +-
tests/ref/seek/lavf-mkv | 44 ++++++++---------
13 files changed, 85 insertions(+), 69 deletions(-)
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index 859c82f7cf..fccfee539a 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -55,8 +55,8 @@
#include "libavcodec/mpeg4audio.h"
/* Level 1 elements we create a SeekHead entry for:
- * Info, Tracks, Chapters, Attachments, Tags and Cues */
-#define MAX_SEEKHEAD_ENTRIES 6
+ * Info, Tracks, Chapters, Attachments, Tags (potentially twice) and Cues */
+#define MAX_SEEKHEAD_ENTRIES 7
#define IS_SEEKABLE(pb, mkv) (((pb)->seekable & AVIO_SEEKABLE_NORMAL) && \
!(mkv)->is_live)
@@ -142,8 +142,8 @@ typedef struct MatroskaMuxContext {
unsigned nb_attachments;
int have_video;
- uint32_t chapter_id_offset;
int wrote_chapters;
+ int wrote_tags;
int reserve_cues_space;
int cluster_size_limit;
@@ -1546,6 +1546,8 @@ static int mkv_write_tags(AVFormatContext *s)
ebml_master tag, *tagp = IS_SEEKABLE(s->pb, mkv) ? &tag : NULL;
int i, ret;
+ mkv->wrote_tags = 1;
+
ff_metadata_conv_ctx(s, ff_mkv_metadata_conv, NULL);
if (mkv_check_tag(s->metadata, 0)) {
@@ -1586,21 +1588,6 @@ static int mkv_write_tags(AVFormatContext *s)
}
}
- if (mkv->mode != MODE_WEBM) {
- for (i = 0; i < s->nb_chapters; i++) {
- AVChapter *ch = s->chapters[i];
-
- if (!mkv_check_tag(ch->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID))
- continue;
-
- ret = mkv_write_tag(mkv, ch->metadata, &mkv->tags.bc, NULL,
- MATROSKA_ID_TAGTARGETS_CHAPTERUID,
- (uint32_t)ch->id + (uint64_t)mkv->chapter_id_offset);
- if (ret < 0)
- return ret;
- }
- }
-
if (mkv->nb_attachments && mkv->mode != MODE_WEBM) {
for (i = 0; i < s->nb_streams; i++) {
const mkv_track *track = &mkv->tracks[i];
@@ -1629,8 +1616,9 @@ static int mkv_write_tags(AVFormatContext *s)
static int mkv_write_chapters(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
- AVIOContext *dyn_cp = NULL, *pb = s->pb;
+ AVIOContext *dyn_cp = NULL, *dyn_tags = NULL, **tags, *pb = s->pb;
ebml_master editionentry;
+ uint64_t chapter_id_offset = 0;
AVRational scale = {1, 1E9};
int i, ret;
@@ -1639,7 +1627,7 @@ static int mkv_write_chapters(AVFormatContext *s)
for (i = 0; i < s->nb_chapters; i++)
if (!s->chapters[i]->id) {
- mkv->chapter_id_offset = 1;
+ chapter_id_offset = 1;
break;
}
@@ -1648,8 +1636,13 @@ static int mkv_write_chapters(AVFormatContext *s)
return ret;
editionentry = start_ebml_master(dyn_cp, MATROSKA_ID_EDITIONENTRY, 0);
- if (mkv->mode != MODE_WEBM)
+ if (mkv->mode != MODE_WEBM) {
put_ebml_uint(dyn_cp, MATROSKA_ID_EDITIONFLAGDEFAULT, 1);
+ /* If mkv_write_tags() has already been called, then any tags
+ * corresponding to chapters will be put into a new Tags element. */
+ tags = mkv->wrote_tags ? &dyn_tags : &mkv->tags.bc;
+ } else
+ tags = NULL;
for (i = 0; i < s->nb_chapters; i++) {
ebml_master chapteratom, chapterdisplay;
@@ -1661,13 +1654,13 @@ static int mkv_write_chapters(AVFormatContext *s)
av_log(s, AV_LOG_ERROR,
"Invalid chapter start (%"PRId64") or end (%"PRId64").\n",
chapterstart, chapterend);
- ffio_free_dyn_buf(&dyn_cp);
- return AVERROR_INVALIDDATA;
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
}
chapteratom = start_ebml_master(dyn_cp, MATROSKA_ID_CHAPTERATOM, 0);
put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERUID,
- (uint32_t)c->id + (uint64_t)mkv->chapter_id_offset);
+ (uint32_t)c->id + chapter_id_offset);
put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERTIMESTART, chapterstart);
put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERTIMEEND, chapterend);
if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
@@ -1677,12 +1670,34 @@ static int mkv_write_chapters(AVFormatContext *s)
end_ebml_master(dyn_cp, chapterdisplay);
}
end_ebml_master(dyn_cp, chapteratom);
+
+ if (tags && mkv_check_tag(c->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID)) {
+ ret = mkv_write_tag(mkv, c->metadata, tags, NULL,
+ MATROSKA_ID_TAGTARGETS_CHAPTERUID,
+ (uint32_t)c->id + chapter_id_offset);
+ if (ret < 0)
+ goto fail;
+ }
}
end_ebml_master(dyn_cp, editionentry);
mkv->wrote_chapters = 1;
- return end_ebml_master_crc32(pb, &dyn_cp, mkv,
- MATROSKA_ID_CHAPTERS, 0, 0, 1);
+ ret = end_ebml_master_crc32(pb, &dyn_cp, mkv, MATROSKA_ID_CHAPTERS, 0, 0, 1);
+ if (ret < 0)
+ goto fail;
+ if (dyn_tags)
+ return end_ebml_master_crc32(pb, &dyn_tags, mkv,
+ MATROSKA_ID_TAGS, 0, 0, 1);
+ return 0;
+
+fail:
+ if (tags) {
+ /* tags == &mkv->tags.bc can only happen if mkv->tags.bc was
+ * initially NULL, so we never free older tags. */
+ ffio_free_dyn_buf(tags);
+ }
+ ffio_free_dyn_buf(&dyn_cp);
+ return ret;
}
static const char *get_mimetype(const AVStream *st)
@@ -1878,7 +1893,8 @@ static int mkv_write_header(AVFormatContext *s)
return ret;
}
- /* Must come after mkv_write_chapters() because of chapter_id_offset */
+ /* Must come after mkv_write_chapters() to write chapter tags
+ * into the same Tags element as the other tags. */
ret = mkv_write_tags(s);
if (ret < 0)
return ret;
diff --git a/tests/fate/matroska.mak b/tests/fate/matroska.mak
index b69f9792a8..17fbf46653 100644
--- a/tests/fate/matroska.mak
+++ b/tests/fate/matroska.mak
@@ -12,7 +12,7 @@ fate-matroska-prores-header-insertion-bz2: CMD = framecrc -i $(TARGET_SAMPLES)/m
FATE_MATROSKA-$(call DEMMUX, MATROSKA, MATROSKA) += fate-matroska-remux
fate-matroska-remux: CMD = md5pipe -i $(TARGET_SAMPLES)/vp9-test-vectors/vp90-2-2pass-akiyo.webm -color_trc 4 -c:v copy -fflags +bitexact -strict -2 -f matroska
fate-matroska-remux: CMP = oneline
-fate-matroska-remux: REF = acaf96f1832264d7f2845b16dd4ab082
+fate-matroska-remux: REF = 26fabd90326e3de4bb6afe1b216ce232
FATE_MATROSKA-$(call ALLYES, MATROSKA_DEMUXER VORBIS_PARSER) += fate-matroska-xiph-lacing
fate-matroska-xiph-lacing: CMD = framecrc -i $(TARGET_SAMPLES)/mkv/xiph_lacing.mka -c:a copy
diff --git a/tests/fate/wavpack.mak b/tests/fate/wavpack.mak
index f98eaf9a0b..96b4d16bff 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 = md5pipe -i $(TARGET_SAMPLES)/wavpack/num_channels/mono_16bit_int.wv -c copy -fflags +bitexact -f matroska
fate-wavpack-matroska_mux-mono: CMP = oneline
-fate-wavpack-matroska_mux-mono: REF = 5388d452e84958d204de9974bb4e3947
+fate-wavpack-matroska_mux-mono: REF = 0a10b6cd4d64c25ced75f52d1c6929a7
FATE_WAVPACK-$(call DEMMUX, WV, MATROSKA) += fate-wavpack-matroska_mux-61
fate-wavpack-matroska_mux-61: CMD = md5pipe -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 = c28c51910fc8f3806b1ada1efc82ccae
+fate-wavpack-matroska_mux-61: REF = fee4bb1d6cf2d54f78eddc4483e7c990
FATE_SAMPLES_AVCONV += $(FATE_WAVPACK-yes)
fate-wavpack: $(FATE_WAVPACK-yes)
diff --git a/tests/ref/fate/aac-autobsf-adtstoasc b/tests/ref/fate/aac-autobsf-adtstoasc
index c7eae5d6c1..bfb18aedd2 100644
--- a/tests/ref/fate/aac-autobsf-adtstoasc
+++ b/tests/ref/fate/aac-autobsf-adtstoasc
@@ -1,5 +1,5 @@
-6ffdfc7f11f06f94c22cda3a29bf576b *tests/data/fate/aac-autobsf-adtstoasc.matroska
-6627 tests/data/fate/aac-autobsf-adtstoasc.matroska
+5088977b7f13181d707a4077771e4552 *tests/data/fate/aac-autobsf-adtstoasc.matroska
+6648 tests/data/fate/aac-autobsf-adtstoasc.matroska
#extradata 0: 2, 0x0030001c
#tb 0: 1/1000
#media_type 0: audio
diff --git a/tests/ref/fate/binsub-mksenc b/tests/ref/fate/binsub-mksenc
index 48a7a56260..4740569d9c 100644
--- a/tests/ref/fate/binsub-mksenc
+++ b/tests/ref/fate/binsub-mksenc
@@ -1 +1 @@
-8f355f39124753f89ead698e66f98098
+5706cf33f9ded660eb404275ec136127
diff --git a/tests/ref/fate/matroska-flac-extradata-update b/tests/ref/fate/matroska-flac-extradata-update
index 8b575903e6..fb17bfea0b 100644
--- a/tests/ref/fate/matroska-flac-extradata-update
+++ b/tests/ref/fate/matroska-flac-extradata-update
@@ -1,5 +1,5 @@
-332bf4d9c92d24478d2a218e81223433 *tests/data/fate/matroska-flac-extradata-update.matroska
-2011 tests/data/fate/matroska-flac-extradata-update.matroska
+3c721898cf2cf3e2e6c43ad58952bd2d *tests/data/fate/matroska-flac-extradata-update.matroska
+2032 tests/data/fate/matroska-flac-extradata-update.matroska
#extradata 0: 34, 0x7acb09e7
#extradata 1: 34, 0x7acb09e7
#extradata 2: 34, 0x443402dd
diff --git a/tests/ref/fate/rgb24-mkv b/tests/ref/fate/rgb24-mkv
index c9438dffe4..34d028cbfd 100644
--- a/tests/ref/fate/rgb24-mkv
+++ b/tests/ref/fate/rgb24-mkv
@@ -1,5 +1,5 @@
-84474651e0744e7049e27dd19b8c18a8 *tests/data/fate/rgb24-mkv.matroska
-58192 tests/data/fate/rgb24-mkv.matroska
+fdc02d700dbe99315a9f0d928a9b935e *tests/data/fate/rgb24-mkv.matroska
+58213 tests/data/fate/rgb24-mkv.matroska
#tb 0: 1/10
#media_type 0: video
#codec_id 0: rawvideo
diff --git a/tests/ref/fate/webm-dash-chapters b/tests/ref/fate/webm-dash-chapters
index 62d70cf73d..20ddfc031d 100644
--- a/tests/ref/fate/webm-dash-chapters
+++ b/tests/ref/fate/webm-dash-chapters
@@ -1,5 +1,5 @@
-eada3550583906e53114d30cb39126f5 *tests/data/fate/webm-dash-chapters.webm
-111199 tests/data/fate/webm-dash-chapters.webm
+e7fde2ecc9683a7a5296dab33b028653 *tests/data/fate/webm-dash-chapters.webm
+111220 tests/data/fate/webm-dash-chapters.webm
#extradata 0: 3469, 0xc6769ddc
#tb 0: 1/1000
#media_type 0: audio
diff --git a/tests/ref/lavf-fate/av1.mkv b/tests/ref/lavf-fate/av1.mkv
index 3288a4481d..bc568a600e 100644
--- a/tests/ref/lavf-fate/av1.mkv
+++ b/tests/ref/lavf-fate/av1.mkv
@@ -1,3 +1,3 @@
-696074a7600fb5a02a434839d09201f0 *tests/data/lavf-fate/lavf.av1.mkv
-55636 tests/data/lavf-fate/lavf.av1.mkv
+bd676bfc89422755920099ec6ebdebe6 *tests/data/lavf-fate/lavf.av1.mkv
+55657 tests/data/lavf-fate/lavf.av1.mkv
tests/data/lavf-fate/lavf.av1.mkv CRC=0x7c27cc15
diff --git a/tests/ref/lavf/mka b/tests/ref/lavf/mka
index 303867228c..e66b418b1d 100644
--- a/tests/ref/lavf/mka
+++ b/tests/ref/lavf/mka
@@ -1,3 +1,3 @@
-a67d0e6113de91ee53ee00b47fa6ff42 *tests/data/lavf/lavf.mka
-43559 tests/data/lavf/lavf.mka
+ea812a6619f4f0d266bec82fcfa54e78 *tests/data/lavf/lavf.mka
+43580 tests/data/lavf/lavf.mka
tests/data/lavf/lavf.mka CRC=0x3a1da17e
diff --git a/tests/ref/lavf/mkv b/tests/ref/lavf/mkv
index 9eaf5a4a11..0dd4521bc8 100644
--- a/tests/ref/lavf/mkv
+++ b/tests/ref/lavf/mkv
@@ -1,3 +1,3 @@
-e08b2effe716fb6b72f4a2cd2598b6d4 *tests/data/lavf/lavf.mkv
-320411 tests/data/lavf/lavf.mkv
+c984a76e996f43943d2fe9eb5f2495e4 *tests/data/lavf/lavf.mkv
+320432 tests/data/lavf/lavf.mkv
tests/data/lavf/lavf.mkv CRC=0xec6c3c68
diff --git a/tests/ref/lavf/mkv_attachment b/tests/ref/lavf/mkv_attachment
index d6cd1cdf64..e0e1a22d9c 100644
--- a/tests/ref/lavf/mkv_attachment
+++ b/tests/ref/lavf/mkv_attachment
@@ -1,3 +1,3 @@
-aa2419820c590d0512ce199b7b59b9c9 *tests/data/lavf/lavf.mkv_attachment
-472566 tests/data/lavf/lavf.mkv_attachment
+8182124c770de9579e6d0d6759d01655 *tests/data/lavf/lavf.mkv_attachment
+472587 tests/data/lavf/lavf.mkv_attachment
tests/data/lavf/lavf.mkv_attachment CRC=0xec6c3c68
diff --git a/tests/ref/seek/lavf-mkv b/tests/ref/seek/lavf-mkv
index 3299861d9c..8981f1d7b7 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: 659 size: 208
+ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 680 size: 208
ret: 0 st:-1 flags:0 ts:-1.000000
-ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 875 size: 27837
+ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 896 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: 292312 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: 292312 size: 27834
ret: 0 st: 0 flags:1 ts:-0.317000
-ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 875 size: 27837
+ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 896 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: 320153 size: 209
ret: 0 st:-1 flags:0 ts: 0.365002
-ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146843 size: 27925
+ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146864 size: 27925
ret: 0 st:-1 flags:1 ts:-0.740831
-ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 875 size: 27837
+ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 896 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: 292312 size: 27834
ret: 0 st: 1 flags:0 ts:-0.058000
-ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 659 size: 208
+ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 680 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: 320153 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: 146843 size: 27925
+ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146864 size: 27925
ret: 0 st: 0 flags:0 ts:-0.482000
-ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 875 size: 27837
+ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 896 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: 292312 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: 659 size: 208
+ret: 0 st: 1 flags:1 dts: 0.000000 pts: 0.000000 pos: 680 size: 208
ret: 0 st:-1 flags:0 ts:-0.904994
-ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 875 size: 27837
+ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 896 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: 292312 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: 292312 size: 27834
ret: 0 st: 0 flags:1 ts:-0.222000
-ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 875 size: 27837
+ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 896 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: 320153 size: 209
ret: 0 st:-1 flags:0 ts: 0.460008
-ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146843 size: 27925
+ret: 0 st: 0 flags:1 dts: 0.491000 pts: 0.491000 pos: 146864 size: 27925
ret: 0 st:-1 flags:1 ts:-0.645825
-ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 875 size: 27837
+ret: 0 st: 0 flags:1 dts: 0.011000 pts: 0.011000 pos: 896 size: 27837
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