Fixes #7242.
Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Fixes: regression
Found-by: NFrank Liberato <liberato@google.com>
Tested-by: NFrank Liberato <liberato@google.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

These files depend on libavformat, and the vf_srcnn filter
currently is the only thing utilizing these dnn_* files and
already happens to have a dependency on libavformat.

This fixes compilation in cases where libavformat is not a
dependency for libavfilter.

Reported by Kam_ on IRC.

Flesh out with details and examples to show quirks and limitations.

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Found by Chrome's ClusterFuzz: https://crbug.com/847060Signed-off-by: NJacob Trimble <modmaker@google.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

lavc flag 'cgop' can be used to set closed GOP.
Reviewed-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Limited to widths multiple of 2 due to lack of test files for such corner case

This partially fixes ticket #5639

Forgotten in 28e9ba95.
Fixes #7241.
Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Signed-off-by: NMarton Balint <cus@passwd.hu>

This also changes the rounding to nearest.
Signed-off-by: NMarton Balint <cus@passwd.hu>

Signed-off-by: NMarton Balint <cus@passwd.hu>

Signed-off-by: NJames Almer <jamrial@gmail.com>

Signed-off-by: NJames Almer <jamrial@gmail.com>

Requires mbed TLS 2.7.0 or newer
Signed-off-by: NJames Almer <jamrial@gmail.com>

The profile after reading headers can be different from when the context was initialized
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

This does not leave them "as before" which may be a value from a previous profile
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

These 2 fields are not always the same, it is simpler to always use the same field
for detecting studio profile

Fixes: null pointer dereference
Fixes: ffmpeg_crash_3.avi

Found-by: Thuan Pham <thuanpv@comp.nus.edu.sg>, Marcel Böhme, Andrew Santosa and Alexandru RazvanCaciulescu with AFLSmart
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

The code is trivial but the semantics in the spec are ambiguous. This
should help keep parts of the muxer interpreting them consistently.

Generic C implementation of vf_blend performs reads and writes of 16-bit
elements, which requires the buffers to be aligned to at least 2-byte
boundary.

Also, the change fixes source buffer overrun caused by src_offset being
added to to test handling of misaligned buffers.

Fixes: #7226
Reviewed-by: NPaul B Mahol <onemda@gmail.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

1. validate the moov size before checking for cmov atom
2. avoid performing arithmetic operations on unvalidated numbers
3. verify the stco/co64 offset count does not overflow the stco/co64
atom (not only the moov atom)
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

This improves performance and makes qtrle behave more similar to other decoders.
Libavcodec does generally not output known duplicated frames, instead the calling Application
can insert them as it needs.

Fixes: Timeout
Fixes: 6383/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QTRLE_fuzzer-6199846902956032

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Marton Balint

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Signed-off-by: NPedro Arthur <bygrandao@gmail.com>

Thumbnail example added. Avoid transcoding in older examples.

The producer reference time box supplies relative wall-clock times
at which movie fragments, or files containing movie fragments
(such as segments) were produced.
The box is mainly useful in live streaming use cases. A media player
can parse the box and utilize the time fields to measure and improve
the latency during real time playout.

This utility function creates 64-bit NTP time format as per the RFC
5905.
A simple explaination of 64-bit NTP time format is here
http://www.beaglesoft.com/Manual/page53.htm

Direct prediction for interlace frame B pictures references the mv in the
second block in an MB in the backward reference frame for the twomv case.
When the backward reference frame is an I frame, this value may be unset.
Signed-off-by: NJerome Borsboom <jerome.borsboom@carpalis.nl>