It is no longer used outside of ffmpeg_enc.c

It is no longer used outside of ffmpeg_mux*

It is no longer used outside of ffmpeg_mux*

It is no longer used outside of ffmpeg_mux*

It is no longer used outside of ffmpeg_mux*

That field was added to store timestamp conversion state for audio
decoding code. Later it started being used by streamcopy as well, but
that use is wrong because, for a given input stream, both decoding and
an arbitrary number of streamcopies may be performed simultaneously.
They would then all overwrite the same state variable.

Store this state in MuxStream instead.

This is the last use of InputStream in of_streamcopy(), so the ist
parameter can now be removed.

They should always be the same as the input stream parameters, but this
reduces the need to access InputStream in muxing code.

do_streamcopy() is muxing code, so this is a more appropriate place for
this. The last uses of InputStream in it will be removed in following
commits.

It stores codec parameters of the stream submitted to the muxer, which
may be different from the codec parameters in AVStream due to bitstream
filtering.

This avoids the confusing back and forth synchronisation between the
encoder, bitstream filters, and the muxer, now information flows only in
one direction. It also reduces the need for non-muxing code to access
AVStream.

Reduces access to a deeply nested muxer property
OutputStream.st->codecpar->codec_type for this fundamental and immutable
stream property.

Besides making the code shorter, this will allow making the AVStream
(OutputStream.st) private to the muxer in the future.

There is no reason to postpone it until transcode_init() anymore, it can
be done right at the end of of_open().

Will allow initializing subtitle encoding earlier.

It does nothing beyond exit_program().

All decoding code will be moved to this file in the future.

Set InputStream.decoding_needed/discard/etc. only from
ist_{filter,output},add() functions. Reduces the knowledge of
InputStream internals in muxing/filtering code.

This way filtering code does not directly mess with InputStream
internals. Will become more useful in following commits.

Makes it easier to see where the input stream is modified from muxer
code.

init_input_stream() can print log messages directly, there is no need to
ship them to the caller.

Also, log errors to the InputStream and avoid duplicate information in
the message.

reap_filters() no longer needs to access the encoding context.

Changing AVCodecContext.sample_aspect_ratio after the encoder was opened
is by itself questionable, but if anywhere it belongs in encoding rather
than filtering code.

Everything in it can be done immediately when creating the output
stream, there is no reason to postpone it.

Creating a new output stream of a given type is currently done by
calling new_<type>_stream(), which all start by calling
new_output_stream() to allocate the stream and do common init, followed
by type-specific init.

Reverse this structure - the caller now calls the common function
ost_add() with the type as a parameter, which then calls the
type-specific function internally. This will allow adding common code
that runs after type-specific code in future commits.

Reduces the diff in the following commit.

Temporarily add a forward declaration for new_output_stream(), it will
be removed in the next commit.

Fixes #10319 and #10309.

see https://github.com/intel/libva/pull/664Signed-off-by: jianfeng.zheng <jianfeng.zheng@mthreads.com>

see https://github.com/intel/libva/pull/664Signed-off-by: jianfeng.zheng <jianfeng.zheng@mthreads.com>

Add the check for the return value of the av_malloc in order to avoid
NULL pointer deference.

Fixes: e4be3485 ("MS Video 1 encoder")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>

Add the check for the return value of the av_malloc in order to avoid
NULL pointer deference.

Fixes: b86ab381 ("Add weighted motion compensation for RV40 B-frames")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>

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

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

Fixes: out of array write on x86-32
Fixes: 57825/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG2VIDEO_fuzzer-6094366187061248
Fixes: 57829/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG2VIDEO_fuzzer-4526419991724032

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
This reverts commit f7abe92b.

Fixes: NULL pointer dereference
Fixes: 57819/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ESCAPE124_fuzzer-5077280228769792

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

Fixes: signed integer overflow: -631553 * 32768 cannot be represented in type 'int'
Fixes: 57814/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RKA_fuzzer-4614661233573888

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

Fixes: Writing arbitrarily over the array end
Fixes: 57812/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4536557859373056

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

Fixes: left shift of negative value -1
Fixes: 57554/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFVHUFF_fuzzer-4853603839115264

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

Fixes tickets #10306 and #10318.
Signed-off-by: James Almer <jamrial@gmail.com>

Fixes ticket #10317.
Signed-off-by: James Almer <jamrial@gmail.com>

Don't return success if the string could not be converted.
Signed-off-by: James Almer <jamrial@gmail.com>