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Commit 2eba8da6 authored by Tomas Härdin's avatar Tomas Härdin
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mxfdec: Hybrid demuxing/seeking solution 

This uses the old demuxing code for OP1a and separate demuxing code for OPAtom.
Timestamp output is added to the old demuxing code.
The seeking code is made to seek to the start of the desired EditUnit only,
from which the normal demuxing code takes over (if OP1a). This means we don't
use delta entries or slices, only StreamOffsets.
OPAtom seeking basically works like before.
This also makes D-10 seeking behave the same way as OP1a and OPAtom. In other
words, we allow seeking before the start or past the end for D-10 too.
This fixes ticket #746.
parent 36c305f9
Hide whitespace changes
Inline Side-by-side
Showing with 143 additions and 98 deletions
libavformat/mxfdec.c
View file @ 2eba8da6
...@@ -1014,6 +1014,29 @@ static int64_t mxf_essence_container_length(MXFContext *mxf, int body_sid) ...@@ -1014,6 +1014,29 @@ static int64_t mxf_essence_container_length(MXFContext *mxf, int body_sid)
return ret; return ret;
} }
/**
* Returns the end position of the essence container with given BodySID, or zero if unknown
*/
static int64_t mxf_essence_container_end(MXFContext *mxf, int body_sid)
{
int x;
int64_t ret = 0;
for (x = 0; x < mxf->partitions_count; x++) {
MXFPartition *p = &mxf->partitions[x];
if (p->body_sid != body_sid)
continue;
if (!p->essence_length)
return 0;
ret = p->essence_offset + p->essence_length;
}
return ret;
}
/* EditUnit -> absolute offset */ /* EditUnit -> absolute offset */
static int mxf_edit_unit_absolute_offset(MXFContext *mxf, MXFIndexTable *index_table, int64_t edit_unit, int64_t *edit_unit_out, int64_t *offset_out, int nag) static int mxf_edit_unit_absolute_offset(MXFContext *mxf, MXFIndexTable *index_table, int64_t edit_unit, int64_t *edit_unit_out, int64_t *offset_out, int nag)
{ {
...@@ -1888,6 +1911,32 @@ static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap) ...@@ -1888,6 +1911,32 @@ static int mxf_read_header(AVFormatContext *s, AVFormatParameters *ap)
return 0; return 0;
} }
/**
* Computes DTS and PTS for the given video packet based on its offset.
*/
static void mxf_packet_timestamps(MXFContext *mxf, AVPacket *pkt)
{
int64_t next_ofs;
MXFIndexTable *t = &mxf->index_tables[0];
/* find mxf->current_edit_unit so that the next edit unit starts ahead of pkt->pos */
for (;;) {
if (mxf_edit_unit_absolute_offset(mxf, t, mxf->current_edit_unit + 1, NULL, &next_ofs, 0) < 0)
break;
if (next_ofs > pkt->pos)
break;
mxf->current_edit_unit++;
}
if (mxf->current_edit_unit >= t->nb_ptses)
return;
pkt->dts = mxf->current_edit_unit + t->first_dts;
pkt->pts = t->ptses[mxf->current_edit_unit];
}
static int mxf_read_packet_old(AVFormatContext *s, AVPacket *pkt) static int mxf_read_packet_old(AVFormatContext *s, AVPacket *pkt)
{ {
KLVPacket klv; KLVPacket klv;
...@@ -1927,6 +1976,10 @@ static int mxf_read_packet_old(AVFormatContext *s, AVPacket *pkt) ...@@ -1927,6 +1976,10 @@ static int mxf_read_packet_old(AVFormatContext *s, AVPacket *pkt)
} }
pkt->stream_index = index; pkt->stream_index = index;
pkt->pos = klv.offset; pkt->pos = klv.offset;
if (s->streams[index]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
mxf_packet_timestamps(s->priv_data, pkt); /* offset -> EditUnit -> DTS/PTS */
return 0; return 0;
} else } else
skip: skip:
...@@ -1938,63 +1991,51 @@ static int mxf_read_packet_old(AVFormatContext *s, AVPacket *pkt) ...@@ -1938,63 +1991,51 @@ static int mxf_read_packet_old(AVFormatContext *s, AVPacket *pkt)
static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt) static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
{ {
MXFContext *mxf = s->priv_data; MXFContext *mxf = s->priv_data;
AVIndexEntry *e; int ret, size;
int ret; int64_t ret64, pos, next_pos;
int64_t ret64;
KLVPacket klv;
AVStream *st; AVStream *st;
MXFIndexTable *t;
/* TODO: better logic for this? if (mxf->op != OPAtom)
* only files that lack all index segments prior to the essence need this */
if (!s->pb->seekable && mxf->op != OPAtom || mxf->d10 || mxf->broken_index)
return mxf_read_packet_old(s, pkt); return mxf_read_packet_old(s, pkt);
if (mxf->current_stream >= s->nb_streams) { /* OPAtom - clip wrapped demuxing */
mxf->current_edit_unit++; st = s->streams[0];
mxf->current_stream = 0; t = &mxf->index_tables[0];
}
st = s->streams[mxf->current_stream]; if (mxf->current_edit_unit >= st->duration)
if (mxf->current_edit_unit >= st->nb_index_entries)
return AVERROR_EOF; return AVERROR_EOF;
e = &st->index_entries[mxf->current_edit_unit]; if ((ret = mxf_edit_unit_absolute_offset(mxf, t, mxf->current_edit_unit, NULL, &pos, 1)) < 0)
return ret;
if ((ret64 = avio_seek(s->pb, e->pos, SEEK_SET)) < 0) /* compute size by finding the next edit unit or the end of the essence container
return ret64; * not pretty, but it works */
if ((ret = mxf_edit_unit_absolute_offset(mxf, t, mxf->current_edit_unit + 1, NULL, &next_pos, 0)) < 0 &&
(next_pos = mxf_essence_container_end(mxf, t->body_sid)) <= 0) {
av_log(s, AV_LOG_ERROR, "unable to compute the size of the last packet\n");
return AVERROR_INVALIDDATA;
}
if (mxf->op == OPAtom) { if ((size = next_pos - pos) <= 0) {
/* OPAtom - no KL, just essence */ av_log(s, AV_LOG_ERROR, "bad size: %i\n", size);
if ((ret = av_get_packet(s->pb, pkt, e->size)) != e->size) return AVERROR_INVALIDDATA;
return ret < 0 ? ret : AVERROR_EOF; }
} else {
/* read KL, read L bytes of essence */
if ((ret = klv_read_packet(&klv, s->pb)) < 0)
return ret;
/* untested, but looks OK */ if ((ret64 = avio_seek(s->pb, pos, SEEK_SET)) < 0)
if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key)) { return ret64;
int res = mxf_decrypt_triplet(s, pkt, &klv);
if (res < 0) {
av_log(s, AV_LOG_ERROR, "invalid encoded triplet\n");
return -1;
}
return 0;
}
if ((ret = av_get_packet(s->pb, pkt, klv.length)) != klv.length) if ((ret = av_get_packet(s->pb, pkt, size)) != size)
return ret < 0 ? ret : AVERROR_EOF; return ret < 0 ? ret : AVERROR_EOF;
pkt->pos = e->pos; if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && t->ptses &&
} mxf->current_edit_unit >= 0 && mxf->current_edit_unit < t->nb_ptses) {
pkt->dts = mxf->current_edit_unit + t->first_dts;
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && mxf->ptses && mxf->current_edit_unit < mxf->nb_ptses) { pkt->pts = t->ptses[mxf->current_edit_unit];
pkt->dts = mxf->current_edit_unit + mxf->first_dts;
pkt->pts = mxf->ptses[mxf->current_edit_unit];
} }
pkt->stream_index = mxf->current_stream++; pkt->stream_index = 0;
mxf->current_edit_unit++;
return 0; return 0;
} }
...@@ -2078,9 +2119,10 @@ static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti ...@@ -2078,9 +2119,10 @@ static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti
int64_t seconds; int64_t seconds;
MXFContext* mxf = s->priv_data; MXFContext* mxf = s->priv_data;
int64_t seekpos; int64_t seekpos;
int index; int ret;
MXFIndexTable *t;
if (mxf->d10) { if (mxf->index_tables <= 0) {
if (!s->bit_rate) if (!s->bit_rate)
return -1; return -1;
if (sample_time < 0) if (sample_time < 0)
...@@ -2090,24 +2132,27 @@ static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti ...@@ -2090,24 +2132,27 @@ static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti
return -1; return -1;
ff_update_cur_dts(s, st, sample_time); ff_update_cur_dts(s, st, sample_time);
} else { } else {
if (st->nb_index_entries <= 0) t = &mxf->index_tables[0];
return -1;
index = av_index_search_timestamp(st, sample_time, flags); /* clamp above zero, else ff_index_search_timestamp() returns negative
* this also means we allow seeking before the start */
sample_time = FFMAX(sample_time, 0);
av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, sample_time, index); if (t->fake_index) {
/* behave as if we have a proper index */
if (index < 0) { if ((sample_time = ff_index_search_timestamp(t->fake_index, t->nb_ptses, sample_time, flags)) < 0)
if (sample_time < st->index_entries[0].timestamp) return sample_time;
index = 0; } else {
else /* no IndexEntryArray (one or more CBR segments)
return -1; * make sure we don't seek past the end */
sample_time = FFMIN(sample_time, st->duration - 1);
} }
seekpos = st->index_entries[index].pos; if ((ret = mxf_edit_unit_absolute_offset(mxf, t, sample_time, &sample_time, &seekpos, 1)) << 0)
av_update_cur_dts(s, st, st->index_entries[index].timestamp); return ret;
mxf->current_edit_unit = st->index_entries[index].timestamp;
mxf->current_stream = 0; av_update_cur_dts(s, st, sample_time);
mxf->current_edit_unit = sample_time;
avio_seek(s->pb, seekpos, SEEK_SET); avio_seek(s->pb, seekpos, SEEK_SET);
} }
return 0; return 0;
......
tests/ref/seek/lavf_mxf
View file @ 2eba8da6
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 6144 size: 24801 ret: 0 st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos: 6144 size: 24801
ret: 0 st:-1 flags:0 ts:-1.000000 ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 6144 size: 24801 ret: 0 st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos: 6144 size: 24801
ret: 0 st:-1 flags:1 ts: 1.894167 ret: 0 st:-1 flags:1 ts: 1.894167
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 460800 size: 24712 ret: 0 st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24712
ret: 0 st: 0 flags:0 ts: 0.800000 ret: 0 st: 0 flags:0 ts: 0.800000
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 460800 size: 24712 ret: 0 st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24712
ret: 0 st: 0 flags:1 ts:-0.320000 ret: 0 st: 0 flags:1 ts:-0.320000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 6144 size: 24801 ret: 0 st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos: 6144 size: 24801
ret:-1 st: 1 flags:0 ts: 2.560000 ret:-1 st: 1 flags:0 ts: 2.560000
ret: 0 st: 1 flags:1 ts: 1.480000 ret: 0 st: 1 flags:1 ts: 1.480000
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 460800 size: 24712 ret: 0 st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24712
ret: 0 st:-1 flags:0 ts: 0.365002 ret: 0 st:-1 flags:0 ts: 0.365002
ret: 0 st: 0 flags:1 dts: 0.400000 pts: NOPTS pos: 211968 size: 24787 ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.480000 pos: 211968 size: 24787
ret: 0 st:-1 flags:1 ts:-0.740831 ret: 0 st:-1 flags:1 ts:-0.740831
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 6144 size: 24801 ret: 0 st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos: 6144 size: 24801
ret:-1 st: 0 flags:0 ts: 2.160000 ret:-1 st: 0 flags:0 ts: 2.160000
ret: 0 st: 0 flags:1 ts: 1.040000 ret: 0 st: 0 flags:1 ts: 1.040000
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 460800 size: 24712 ret: 0 st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24712
ret: 0 st: 1 flags:0 ts:-0.040000 ret: 0 st: 1 flags:0 ts:-0.040000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 6144 size: 24801 ret: 0 st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos: 6144 size: 24801
ret: 0 st: 1 flags:1 ts: 2.840000 ret: 0 st: 1 flags:1 ts: 2.840000
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 460800 size: 24712 ret: 0 st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24712
ret:-1 st:-1 flags:0 ts: 1.730004 ret:-1 st:-1 flags:0 ts: 1.730004
ret: 0 st:-1 flags:1 ts: 0.624171 ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.400000 pts: NOPTS pos: 211968 size: 24787 ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.480000 pos: 211968 size: 24787
ret: 0 st: 0 flags:0 ts:-0.480000 ret: 0 st: 0 flags:0 ts:-0.480000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 6144 size: 24801 ret: 0 st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos: 6144 size: 24801
ret: 0 st: 0 flags:1 ts: 2.400000 ret: 0 st: 0 flags:1 ts: 2.400000
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 460800 size: 24712 ret: 0 st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24712
ret:-1 st: 1 flags:0 ts: 1.320000 ret:-1 st: 1 flags:0 ts: 1.320000
ret: 0 st: 1 flags:1 ts: 0.200000 ret: 0 st: 1 flags:1 ts: 0.200000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 6144 size: 24801 ret: 0 st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos: 6144 size: 24801
ret: 0 st:-1 flags:0 ts:-0.904994 ret: 0 st:-1 flags:0 ts:-0.904994
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 6144 size: 24801 ret: 0 st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos: 6144 size: 24801
ret: 0 st:-1 flags:1 ts: 1.989173 ret: 0 st:-1 flags:1 ts: 1.989173
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 460800 size: 24712 ret: 0 st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24712
ret: 0 st: 0 flags:0 ts: 0.880000 ret: 0 st: 0 flags:0 ts: 0.880000
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 460800 size: 24712 ret: 0 st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24712
ret: 0 st: 0 flags:1 ts:-0.240000 ret: 0 st: 0 flags:1 ts:-0.240000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 6144 size: 24801 ret: 0 st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos: 6144 size: 24801
ret:-1 st: 1 flags:0 ts: 2.680000 ret:-1 st: 1 flags:0 ts: 2.680000
ret: 0 st: 1 flags:1 ts: 1.560000 ret: 0 st: 1 flags:1 ts: 1.560000
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 460800 size: 24712 ret: 0 st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24712
ret: 0 st:-1 flags:0 ts: 0.460008 ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:1 dts: 0.880000 pts: NOPTS pos: 460800 size: 24712 ret: 0 st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24712
ret: 0 st:-1 flags:1 ts:-0.645825 ret: 0 st:-1 flags:1 ts:-0.645825
ret: 0 st: 0 flags:1 dts: 0.000000 pts: NOPTS pos: 6144 size: 24801 ret: 0 st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos: 6144 size: 24801
tests/ref/seek/lavf_mxf_d10
View file @ 2eba8da6
...@@ -2,52 +2,52 @@ ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000 ...@@ -2,52 +2,52 @@ ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000
ret: 0 st:-1 flags:0 ts:-1.000000 ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000
ret: 0 st:-1 flags:1 ts: 1.894167 ret: 0 st:-1 flags:1 ts: 1.894167
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st: 0 flags:0 ts: 0.800000 ret: 0 st: 0 flags:0 ts: 0.800000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.800000 pts: 0.800000 pos:4265984 size:150000
ret: 0 st: 0 flags:1 ts:-0.320000 ret: 0 st: 0 flags:1 ts:-0.320000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000
ret: 0 st: 1 flags:0 ts: 2.560000 ret: 0 st: 1 flags:0 ts: 2.560000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st: 1 flags:1 ts: 1.480000 ret: 0 st: 1 flags:1 ts: 1.480000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st:-1 flags:0 ts: 0.365002 ret: 0 st:-1 flags:0 ts: 0.365002
ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.360000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.360000 pos:1923072 size:150000
ret: 0 st:-1 flags:1 ts:-0.740831 ret: 0 st:-1 flags:1 ts:-0.740831
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000
ret: 0 st: 0 flags:0 ts: 2.160000 ret: 0 st: 0 flags:0 ts: 2.160000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st: 0 flags:1 ts: 1.040000 ret: 0 st: 0 flags:1 ts: 1.040000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st: 1 flags:0 ts:-0.040000 ret: 0 st: 1 flags:0 ts:-0.040000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000
ret: 0 st: 1 flags:1 ts: 2.840000 ret: 0 st: 1 flags:1 ts: 2.840000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st:-1 flags:0 ts: 1.730004 ret: 0 st:-1 flags:0 ts: 1.730004
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st:-1 flags:1 ts: 0.624171 ret: 0 st:-1 flags:1 ts: 0.624171
ret:-1 ret: 0 st: 0 flags:1 dts: 0.640000 pts: 0.640000 pos:3414016 size:150000
ret: 0 st: 0 flags:0 ts:-0.480000 ret: 0 st: 0 flags:0 ts:-0.480000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000
ret: 0 st: 0 flags:1 ts: 2.400000 ret: 0 st: 0 flags:1 ts: 2.400000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st: 1 flags:0 ts: 1.320000 ret: 0 st: 1 flags:0 ts: 1.320000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st: 1 flags:1 ts: 0.200000 ret: 0 st: 1 flags:1 ts: 0.200000
ret: 0 st: 0 flags:1 dts: 0.200000 pts: 0.200000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.200000 pts: 0.200000 pos:1071104 size:150000
ret: 0 st:-1 flags:0 ts:-0.904994 ret: 0 st:-1 flags:0 ts:-0.904994
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000
ret: 0 st:-1 flags:1 ts: 1.989173 ret: 0 st:-1 flags:1 ts: 1.989173
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st: 0 flags:0 ts: 0.880000 ret: 0 st: 0 flags:0 ts: 0.880000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.880000 pts: 0.880000 pos:4691968 size:150000
ret: 0 st: 0 flags:1 ts:-0.240000 ret: 0 st: 0 flags:1 ts:-0.240000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000
ret: 0 st: 1 flags:0 ts: 2.680000 ret: 0 st: 1 flags:0 ts: 2.680000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st: 1 flags:1 ts: 1.560000 ret: 0 st: 1 flags:1 ts: 1.560000
ret:-1 ret: 0 st: 0 flags:1 dts: 0.960000 pts: 0.960000 pos:5117952 size:150000
ret: 0 st:-1 flags:0 ts: 0.460008 ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos:2562048 size:150000
ret: 0 st:-1 flags:1 ts:-0.645825 ret: 0 st:-1 flags:1 ts:-0.645825
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 6144 size:150000
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