[FFmpeg-devel] [PATCH 18/18] lavf/dv: do not continuously set stream timebase
Anton Khirnov
anton at khirnov.net
Wed Aug 24 11:43:18 EEST 2022
The code will call avpriv_set_pts_info() for each video frame, possibly
setting a different timebase if the stream framerate changes. This
violates API conventions, as the timebase is supposed to stay constant
after stream creation.
Change the demuxer to set a single timebase that is granular enough to
handle all supported DV framerates.
The seek tests change slightly because the new timebase is more
granular.
---
libavformat/dv.c | 16 ++++++++++++----
tests/ref/seek/lavf-dv | 30 +++++++++++++++---------------
tests/ref/seek/vsynth_lena-dv | 24 ++++++++++++------------
tests/ref/seek/vsynth_lena-dv-411 | 24 ++++++++++++------------
tests/ref/seek/vsynth_lena-dv-50 | 24 ++++++++++++------------
5 files changed, 63 insertions(+), 55 deletions(-)
diff --git a/libavformat/dv.c b/libavformat/dv.c
index ffed1a7a90..e2f7a6d313 100644
--- a/libavformat/dv.c
+++ b/libavformat/dv.c
@@ -69,6 +69,8 @@ struct DVDemuxContext {
uint8_t audio_buf[4][8192];
int ach;
int frames;
+
+ int64_t next_pts;
};
static inline uint16_t dv_audio_12to16(uint16_t sample)
@@ -314,8 +316,6 @@ static int dv_extract_video_info(DVDemuxContext *c, const uint8_t *frame)
par = c->vst->codecpar;
- avpriv_set_pts_info(c->vst, 64, c->sys->time_base.num,
- c->sys->time_base.den);
c->vst->avg_frame_rate = av_inv_q(c->vst->time_base);
/* finding out SAR is a little bit messy */
@@ -360,6 +360,8 @@ static int dv_init_demux(AVFormatContext *s, DVDemuxContext *c)
c->vst->codecpar->bit_rate = 25000000;
c->vst->start_time = 0;
+ avpriv_set_pts_info(c->vst, 64, 1, 60000);
+
/* Audio streams are added later as they are encountered. */
s->ctx_flags |= AVFMTCTX_NOHEADER;
@@ -463,7 +465,10 @@ int avpriv_dv_produce_packet(DVDemuxContext *c, AVPacket *pkt,
pkt->size = size;
pkt->flags |= AV_PKT_FLAG_KEY;
pkt->stream_index = c->vst->index;
- pkt->pts = c->frames;
+ pkt->pts = c->next_pts;
+ pkt->duration = av_rescale_q(1, c->sys->time_base, c->vst->time_base);
+
+ c->next_pts += pkt->duration;
}
c->frames++;
@@ -477,11 +482,12 @@ static int64_t dv_frame_offset(AVFormatContext *s, DVDemuxContext *c,
// FIXME: sys may be wrong if last dv_read_packet() failed (buffer is junk)
FFFormatContext *const si = ffformatcontext(s);
const int frame_size = c->sys->frame_size;
+ int64_t frame_count = av_rescale_q(timestamp, c->vst->time_base, c->sys->time_base);
int64_t offset;
int64_t size = avio_size(s->pb) - si->data_offset;
int64_t max_offset = ((size - 1) / frame_size) * frame_size;
- offset = frame_size * timestamp;
+ offset = frame_size * frame_count;
if (size >= 0 && offset > max_offset)
offset = max_offset;
@@ -494,6 +500,8 @@ static int64_t dv_frame_offset(AVFormatContext *s, DVDemuxContext *c,
void ff_dv_offset_reset(DVDemuxContext *c, int64_t frame_offset)
{
c->frames = frame_offset;
+ if (c->sys)
+ c->next_pts = av_rescale_q(frame_offset, c->sys->time_base, c->vst->time_base);
c->audio_pkt[0].size = c->audio_pkt[1].size = 0;
c->audio_pkt[2].size = c->audio_pkt[3].size = 0;
}
diff --git a/tests/ref/seek/lavf-dv b/tests/ref/seek/lavf-dv
index f63e4460be..356f05546b 100644
--- a/tests/ref/seek/lavf-dv
+++ b/tests/ref/seek/lavf-dv
@@ -3,50 +3,50 @@ ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:1 ts: 1.894167
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
-ret: 0 st: 0 flags:0 ts: 0.800000
+ret: 0 st: 0 flags:0 ts: 0.788333
ret: 0 st: 0 flags:1 dts: 0.800000 pts: 0.800000 pos:2880000 size:144000
-ret: 0 st: 0 flags:1 ts:-0.320000
+ret: 0 st: 0 flags:1 ts:-0.317500
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st: 1 flags:0 ts: 2.560000
-ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st: 1 flags:1 ts: 1.480000
-ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:0 ts: 0.365002
ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.360000 pos:1296000 size:144000
ret: 0 st:-1 flags:1 ts:-0.740831
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
-ret: 0 st: 0 flags:0 ts: 2.160000
+ret: 0 st: 0 flags:0 ts: 2.153333
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
-ret: 0 st: 0 flags:1 ts: 1.040000
+ret: 0 st: 0 flags:1 ts: 1.047500
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
ret: 0 st: 1 flags:0 ts:-0.040000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st: 1 flags:1 ts: 2.840000
-ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:0 ts: 1.730004
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.640000 pts: 0.640000 pos:2304000 size:144000
-ret: 0 st: 0 flags:0 ts:-0.480000
+ret: 0 st: 0 flags:0 ts:-0.481667
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
-ret: 0 st: 0 flags:1 ts: 2.400000
+ret: 0 st: 0 flags:1 ts: 2.412500
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
ret: 0 st: 1 flags:0 ts: 1.320000
-ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st: 1 flags:1 ts: 0.200000
-ret: 0 st: 0 flags:1 dts: 0.200000 pts: 0.200000 pos: 720000 size:144000
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:0 ts:-0.904994
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:1 ts: 1.989173
ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
-ret: 0 st: 0 flags:0 ts: 0.880000
+ret: 0 st: 0 flags:0 ts: 0.883333
ret: 0 st: 0 flags:1 dts: 0.880000 pts: 0.880000 pos:3168000 size:144000
-ret: 0 st: 0 flags:1 ts:-0.240000
+ret: 0 st: 0 flags:1 ts:-0.222500
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st: 1 flags:0 ts: 2.680000
-ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st: 1 flags:1 ts: 1.560000
-ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:3456000 size:144000
+ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos:1728000 size:144000
ret: 0 st:-1 flags:1 ts:-0.645825
diff --git a/tests/ref/seek/vsynth_lena-dv b/tests/ref/seek/vsynth_lena-dv
index d318794157..afed1fbe72 100644
--- a/tests/ref/seek/vsynth_lena-dv
+++ b/tests/ref/seek/vsynth_lena-dv
@@ -3,49 +3,49 @@ ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:1 ts: 1.894167
ret: 0 st: 0 flags:1 dts: 1.880000 pts: 1.880000 pos:6768000 size:144000
-ret: 0 st: 0 flags:0 ts: 0.800000
+ret: 0 st: 0 flags:0 ts: 0.788333
ret: 0 st: 0 flags:1 dts: 0.800000 pts: 0.800000 pos:2880000 size:144000
-ret: 0 st: 0 flags:1 ts:-0.320000
+ret: 0 st: 0 flags:1 ts:-0.317500
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:0 ts: 2.576668
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
ret: 0 st:-1 flags:1 ts: 1.470835
ret: 0 st: 0 flags:1 dts: 1.480000 pts: 1.480000 pos:5328000 size:144000
-ret: 0 st: 0 flags:0 ts: 0.360000
+ret: 0 st: 0 flags:0 ts: 0.365000
ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.360000 pos:1296000 size:144000
-ret: 0 st: 0 flags:1 ts:-0.760000
+ret: 0 st: 0 flags:1 ts:-0.740833
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:0 ts: 2.153336
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
ret: 0 st:-1 flags:1 ts: 1.047503
ret: 0 st: 0 flags:1 dts: 1.040000 pts: 1.040000 pos:3744000 size:144000
-ret: 0 st: 0 flags:0 ts:-0.040000
+ret: 0 st: 0 flags:0 ts:-0.058333
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
-ret: 0 st: 0 flags:1 ts: 2.840000
+ret: 0 st: 0 flags:1 ts: 2.835833
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
ret: 0 st:-1 flags:0 ts: 1.730004
ret: 0 st: 0 flags:1 dts: 1.720000 pts: 1.720000 pos:6192000 size:144000
ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.640000 pts: 0.640000 pos:2304000 size:144000
-ret: 0 st: 0 flags:0 ts:-0.480000
+ret: 0 st: 0 flags:0 ts:-0.481667
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
-ret: 0 st: 0 flags:1 ts: 2.400000
+ret: 0 st: 0 flags:1 ts: 2.412500
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
ret: 0 st:-1 flags:0 ts: 1.306672
ret: 0 st: 0 flags:1 dts: 1.320000 pts: 1.320000 pos:4752000 size:144000
ret: 0 st:-1 flags:1 ts: 0.200839
ret: 0 st: 0 flags:1 dts: 0.200000 pts: 0.200000 pos: 720000 size:144000
-ret: 0 st: 0 flags:0 ts:-0.920000
+ret: 0 st: 0 flags:0 ts:-0.905000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
-ret: 0 st: 0 flags:1 ts: 2.000000
+ret: 0 st: 0 flags:1 ts: 1.989167
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
ret: 0 st:-1 flags:0 ts: 0.883340
ret: 0 st: 0 flags:1 dts: 0.880000 pts: 0.880000 pos:3168000 size:144000
ret: 0 st:-1 flags:1 ts:-0.222493
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
-ret: 0 st: 0 flags:0 ts: 2.680000
+ret: 0 st: 0 flags:0 ts: 2.671667
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
-ret: 0 st: 0 flags:1 ts: 1.560000
+ret: 0 st: 0 flags:1 ts: 1.565833
ret: 0 st: 0 flags:1 dts: 1.560000 pts: 1.560000 pos:5616000 size:144000
ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos:1728000 size:144000
diff --git a/tests/ref/seek/vsynth_lena-dv-411 b/tests/ref/seek/vsynth_lena-dv-411
index d318794157..afed1fbe72 100644
--- a/tests/ref/seek/vsynth_lena-dv-411
+++ b/tests/ref/seek/vsynth_lena-dv-411
@@ -3,49 +3,49 @@ ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:1 ts: 1.894167
ret: 0 st: 0 flags:1 dts: 1.880000 pts: 1.880000 pos:6768000 size:144000
-ret: 0 st: 0 flags:0 ts: 0.800000
+ret: 0 st: 0 flags:0 ts: 0.788333
ret: 0 st: 0 flags:1 dts: 0.800000 pts: 0.800000 pos:2880000 size:144000
-ret: 0 st: 0 flags:1 ts:-0.320000
+ret: 0 st: 0 flags:1 ts:-0.317500
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:0 ts: 2.576668
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
ret: 0 st:-1 flags:1 ts: 1.470835
ret: 0 st: 0 flags:1 dts: 1.480000 pts: 1.480000 pos:5328000 size:144000
-ret: 0 st: 0 flags:0 ts: 0.360000
+ret: 0 st: 0 flags:0 ts: 0.365000
ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.360000 pos:1296000 size:144000
-ret: 0 st: 0 flags:1 ts:-0.760000
+ret: 0 st: 0 flags:1 ts:-0.740833
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
ret: 0 st:-1 flags:0 ts: 2.153336
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
ret: 0 st:-1 flags:1 ts: 1.047503
ret: 0 st: 0 flags:1 dts: 1.040000 pts: 1.040000 pos:3744000 size:144000
-ret: 0 st: 0 flags:0 ts:-0.040000
+ret: 0 st: 0 flags:0 ts:-0.058333
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
-ret: 0 st: 0 flags:1 ts: 2.840000
+ret: 0 st: 0 flags:1 ts: 2.835833
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
ret: 0 st:-1 flags:0 ts: 1.730004
ret: 0 st: 0 flags:1 dts: 1.720000 pts: 1.720000 pos:6192000 size:144000
ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.640000 pts: 0.640000 pos:2304000 size:144000
-ret: 0 st: 0 flags:0 ts:-0.480000
+ret: 0 st: 0 flags:0 ts:-0.481667
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
-ret: 0 st: 0 flags:1 ts: 2.400000
+ret: 0 st: 0 flags:1 ts: 2.412500
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
ret: 0 st:-1 flags:0 ts: 1.306672
ret: 0 st: 0 flags:1 dts: 1.320000 pts: 1.320000 pos:4752000 size:144000
ret: 0 st:-1 flags:1 ts: 0.200839
ret: 0 st: 0 flags:1 dts: 0.200000 pts: 0.200000 pos: 720000 size:144000
-ret: 0 st: 0 flags:0 ts:-0.920000
+ret: 0 st: 0 flags:0 ts:-0.905000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
-ret: 0 st: 0 flags:1 ts: 2.000000
+ret: 0 st: 0 flags:1 ts: 1.989167
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
ret: 0 st:-1 flags:0 ts: 0.883340
ret: 0 st: 0 flags:1 dts: 0.880000 pts: 0.880000 pos:3168000 size:144000
ret: 0 st:-1 flags:1 ts:-0.222493
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:144000
-ret: 0 st: 0 flags:0 ts: 2.680000
+ret: 0 st: 0 flags:0 ts: 2.671667
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:7056000 size:144000
-ret: 0 st: 0 flags:1 ts: 1.560000
+ret: 0 st: 0 flags:1 ts: 1.565833
ret: 0 st: 0 flags:1 dts: 1.560000 pts: 1.560000 pos:5616000 size:144000
ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos:1728000 size:144000
diff --git a/tests/ref/seek/vsynth_lena-dv-50 b/tests/ref/seek/vsynth_lena-dv-50
index fae6d1b225..3b1d69ffa6 100644
--- a/tests/ref/seek/vsynth_lena-dv-50
+++ b/tests/ref/seek/vsynth_lena-dv-50
@@ -3,49 +3,49 @@ ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:288000
ret: 0 st:-1 flags:1 ts: 1.894167
ret: 0 st: 0 flags:1 dts: 1.880000 pts: 1.880000 pos:13536000 size:288000
-ret: 0 st: 0 flags:0 ts: 0.800000
+ret: 0 st: 0 flags:0 ts: 0.788333
ret: 0 st: 0 flags:1 dts: 0.800000 pts: 0.800000 pos:5760000 size:288000
-ret: 0 st: 0 flags:1 ts:-0.320000
+ret: 0 st: 0 flags:1 ts:-0.317500
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:288000
ret: 0 st:-1 flags:0 ts: 2.576668
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:14112000 size:288000
ret: 0 st:-1 flags:1 ts: 1.470835
ret: 0 st: 0 flags:1 dts: 1.480000 pts: 1.480000 pos:10656000 size:288000
-ret: 0 st: 0 flags:0 ts: 0.360000
+ret: 0 st: 0 flags:0 ts: 0.365000
ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.360000 pos:2592000 size:288000
-ret: 0 st: 0 flags:1 ts:-0.760000
+ret: 0 st: 0 flags:1 ts:-0.740833
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:288000
ret: 0 st:-1 flags:0 ts: 2.153336
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:14112000 size:288000
ret: 0 st:-1 flags:1 ts: 1.047503
ret: 0 st: 0 flags:1 dts: 1.040000 pts: 1.040000 pos:7488000 size:288000
-ret: 0 st: 0 flags:0 ts:-0.040000
+ret: 0 st: 0 flags:0 ts:-0.058333
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:288000
-ret: 0 st: 0 flags:1 ts: 2.840000
+ret: 0 st: 0 flags:1 ts: 2.835833
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:14112000 size:288000
ret: 0 st:-1 flags:0 ts: 1.730004
ret: 0 st: 0 flags:1 dts: 1.720000 pts: 1.720000 pos:12384000 size:288000
ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.640000 pts: 0.640000 pos:4608000 size:288000
-ret: 0 st: 0 flags:0 ts:-0.480000
+ret: 0 st: 0 flags:0 ts:-0.481667
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:288000
-ret: 0 st: 0 flags:1 ts: 2.400000
+ret: 0 st: 0 flags:1 ts: 2.412500
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:14112000 size:288000
ret: 0 st:-1 flags:0 ts: 1.306672
ret: 0 st: 0 flags:1 dts: 1.320000 pts: 1.320000 pos:9504000 size:288000
ret: 0 st:-1 flags:1 ts: 0.200839
ret: 0 st: 0 flags:1 dts: 0.200000 pts: 0.200000 pos:1440000 size:288000
-ret: 0 st: 0 flags:0 ts:-0.920000
+ret: 0 st: 0 flags:0 ts:-0.905000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:288000
-ret: 0 st: 0 flags:1 ts: 2.000000
+ret: 0 st: 0 flags:1 ts: 1.989167
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:14112000 size:288000
ret: 0 st:-1 flags:0 ts: 0.883340
ret: 0 st: 0 flags:1 dts: 0.880000 pts: 0.880000 pos:6336000 size:288000
ret: 0 st:-1 flags:1 ts:-0.222493
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 0 size:288000
-ret: 0 st: 0 flags:0 ts: 2.680000
+ret: 0 st: 0 flags:0 ts: 2.671667
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos:14112000 size:288000
-ret: 0 st: 0 flags:1 ts: 1.560000
+ret: 0 st: 0 flags:1 ts: 1.565833
ret: 0 st: 0 flags:1 dts: 1.560000 pts: 1.560000 pos:11232000 size:288000
ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos:3456000 size:288000
--
2.35.1
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