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Code Issues Releases Activity

libavformat/mov.c: use calculated dts offset when seeking in streams

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Subtract the calculated dts offset from the requested timestamp before
seeking. This fixes an error "Error while filtering: Operation not
permitted" observed with a short file which contains only one key frame
and starts with negative timestamps.

Then, av_index_search_timestamp() returns a valid negative timestamp,
but mov_seek_stream bails out with AVERROR_INVALIDDATA.

Fixes ticket #6139.

Signed-off-by: Jonas Licht <jonas.licht@fem.tu-ilmenau.de>
Signed-off-by: Peter Große <pegro@friiks.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Jonas Licht 2017-10-29 12:11:39 +01:00 committed by Michael Niedermayer
parent d3f1b0d3d8
commit 59ad504696
2 changed files with 12 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
libavformat/mov.c
View File

@ -6901,10 +6901,12 @@ static int mov_seek_fragment(AVFormatContext *s, AVStream *st, int64_t timestamp
static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
{
MOVStreamContext *sc = st->priv_data;
int sample, time_sample;
int sample, time_sample, ret;
unsigned int i;
int ret = mov_seek_fragment(s, st, timestamp);
timestamp -= sc->time_offset;
ret = mov_seek_fragment(s, st, timestamp);
if (ret < 0)
return ret;

16
tests/ref/seek/extra-mp4
View File

@ -28,10 +28,10 @@ ret: 0 st: 0 flags:0 dts: 50.633333 pts: 50.733333 pos:5926157 size: 13
ret: 0 st: 0 flags:0 dts: 50.666667 pts: 50.666667 pos:5927464 size: 150
ret: 0 st: 0 flags:0 dts: 50.700000 pts: 50.700000 pos:5927614 size: 176
ret: 0 st:-1 flags:1 ts: 153.470835
ret: 0 st: 0 flags:1 dts: 153.466667 pts: 153.500000 pos:15867700 size: 96169
ret: 0 st: 0 flags:0 dts: 153.500000 pts: 153.533333 pos:15963869 size: 785
ret: 0 st: 0 flags:0 dts: 153.533333 pts: 153.633333 pos:15964654 size: 3135
ret: 0 st: 0 flags:0 dts: 153.566667 pts: 153.566667 pos:15967789 size: 859
ret: 0 st: 0 flags:1 dts: 151.966667 pts: 152.000000 pos:15705355 size:146924
ret: 0 st: 0 flags:0 dts: 152.000000 pts: 152.100000 pos:15852279 size: 1355
ret: 0 st: 0 flags:0 dts: 152.033333 pts: 152.033333 pos:15853634 size: 211
ret: 0 st: 0 flags:0 dts: 152.066667 pts: 152.066667 pos:15853845 size: 217
ret: 0 st: 0 flags:0 ts: 76.365000
ret: 0 st: 0 flags:1 dts: 77.833333 pts: 77.866667 pos:8659657 size: 41182
ret: 0 st: 0 flags:0 dts: 77.866667 pts: 77.966667 pos:8700839 size: 4197
@ -83,10 +83,10 @@ ret: 0 st: 0 flags:0 dts: 101.333333 pts: 101.433333 pos:11049548 size:
ret: 0 st: 0 flags:0 dts: 101.366667 pts: 101.366667 pos:11053072 size: 562
ret: 0 st: 0 flags:0 dts: 101.400000 pts: 101.400000 pos:11053634 size: 599
ret: 0 st:-1 flags:0 ts: 25.306672
ret: 0 st: 0 flags:1 dts: 27.400000 pts: 27.433333 pos:2674605 size:127383
ret: 0 st: 0 flags:0 dts: 27.433333 pts: 27.466667 pos:2801988 size: 68
ret: 0 st: 0 flags:0 dts: 27.466667 pts: 27.500000 pos:2802268 size: 1754
ret: 0 st: 0 flags:0 dts: 27.500000 pts: 27.533333 pos:2804022 size: 4071
ret: 0 st: 0 flags:1 dts: 25.300000 pts: 25.333333 pos:2607246 size: 40273
ret: 0 st: 0 flags:0 dts: 25.333333 pts: 25.433333 pos:2647519 size: 2959
ret: 0 st: 0 flags:0 dts: 25.366667 pts: 25.366667 pos:2650478 size: 197
ret: 0 st: 0 flags:0 dts: 25.400000 pts: 25.400000 pos:2650675 size: 230
ret: 0 st:-1 flags:1 ts: 128.200839
ret: 0 st: 0 flags:1 dts: 127.833333 pts: 127.866667 pos:13514072 size: 67382
ret: 0 st: 0 flags:0 dts: 127.866667 pts: 127.966667 pos:13581454 size: 2936