In practice, this works fine.

avformat/matroskaenc: write DisplayWidth and DisplayHeight elements only if they differ from PixelWidth and PixelHeight
Signed-off-by: James Almer <jamrial@gmail.com>

It is negative, so can't be used for left shifting.

This fixes ubsan runtime error: shift exponent -1 is negative
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes undefined behavior from calling libc allocation with unclean FPU state.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes undefined behavior due to calling libc allocation with unclean FPU state
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The MMX state must be cleared between using MMX and using memory allocation
thats basically the only location between the 2
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

svq1_encode_plane() uses SIMD and we call libc memory allocation functions after it
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Add new mime types AAL2-G726 for g726 as suggested in rfc 3551.

This patch will break interaction with applications that incorrectly
use big-endian G.726 with mime type G726 but we know of at least one
device (DVTel camera) that correctly implements the rfc, so do the same.

Fixes ticket #5890.

vp9_cx_iface actually allows values in range [0..2].
This fixes ticket #5894.
Signed-off-by: Kagami Hiiragi <kagami@genshiken.org>
Signed-off-by: James Zern <jzern@google.com>

Thanks to Mathieu Malaterre <malat@debian.org> for reporting the
Que/Queue typo. (https://bugs.debian.org/839542)
Reviewed-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Reviewed-by: Marton Balint <cus@passwd.hu>
Acked-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Carlos Fernandez <carlos@ccextractor.org>
Signed-off-by: Marton Balint <cus@passwd.hu>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Carlos Fernandez <carlos@ccextractor.org>
Signed-off-by: Marton Balint <cus@passwd.hu>

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

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

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Otherwise another frame gets referenced into picture, triggering an assert
(from commit 13aae8) in av_frame_ref.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

This fixes asserts (from commit 13aae8) in av_frame_ref and
av_frame_move_ref.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Also check for possible overflows.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

It can be unset in avcodec_parameters_from_context and a value of 0
causes SIGFPE crashes.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

on OSX:
../configure --disable-everything --enable-demuxer=hls make
error message: Undefined symbols for architecture x86_64:
"_av_vda_default_init2", referenced from:_videotoolbox_init in
ffmpeg_videotoolbox.o
so add av_vda_default_init2 when CONFIG_H264_VDA_HWACCEL=0
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Reviewed-by: Xidorn Quan <quanxunzhen@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fix problem to fail by a RTMP Control Message except "Set Chunk Size (1)" after an RTMP handshake. When 'nginx-rtmp-module' relays an RTMP, it sends not only control message 'Set Chunk Size (1)' but also 'Window Acknowledgement Size (5)'.
Reviewed-by: Steven Liu <lingjiujianke@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This function must be called from the mb or slice encoding loop and MMX state may not
be clean there
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Its slow, its not checked, FPU state is not clean either currently there
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This fixes the case of writing segments to local files, but the list
over a network protocol.

Fixes #5675
Signed-off-by: Matt Oliver <protogonoi@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Read video_line_map from MXF generic picture essence descriptor and use
it to derive the coded field order. Use field_dominance to derive the
display field order from coded field order. If field_dominance is not
available the default value "1" is used as defined in SMPTE S377-1.

Fixes field_order detection for a bunch of DV/DVCPRO files. The heuristic
for deriving coded field order from video_line_map is inspired by
MediaInfo.
Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Negative values don't make sense and too large values can cause
overflows. For AV_CODEC_ID_ADPCM_THP this leads to a too small extradata
buffer being allocated, causing out-of-bounds writes.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Fixes a regression introduced in 9b462a0b

Its impossible to update the filesize & duration values if seekback is not
possible as with live streams
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

A size of 32 is typically used.

this makes real-valued kernel
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>

Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>