[FFmpeg-devel] [PATCH] libavformat/mov.c: use calculated dts offset when seeking in streams

Michael Niedermayer michael at niedermayer.cc
Mon Oct 30 02:03:31 EET 2017

On Sun, Oct 29, 2017 at 12:11:39PM +0100, Peter Große wrote:
> From: Jonas Licht <jonas.licht at fem.tu-ilmenau.de>
> 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 at fem.tu-ilmenau.de>
> Signed-off-by: Peter Große <pegro at friiks.de>
> ---
> Compared to the other seek results in this test, the values are not
> that far off.
>  libavformat/mov.c        |  6 ++++--
>  tests/ref/seek/extra-mp4 | 16 ++++++++--------
>  2 files changed, 12 insertions(+), 10 deletions(-)

will apply

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Many that live deserve death. And some that die deserve life. Can you give
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even the very wise cannot see all ends. -- Gandalf
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