[FFmpeg-devel] [PATCH] avfilter: do not write to unwritable frame

[Muhammad Faiz]

On 1/28/17, Nicolas George <george at nsup.org> wrote:
> L'octidi 8 pluviôse, an CCXXV, Muhammad Faiz a écrit :
>> affect filters that set partial_buf_size
>> test-case
>> ffplay -i lavfi 'aevalsrc=sin(1000*t*t), aformat=sample_fmts=fltp, asplit
>> [a][b];
>> [a] firequalizer=fixed=on, showcqt=s=1280x360 [a1];
>> [b] firequalizer=fixed=on, showcqt=s=1280x360 [b1];
>> [a1][b1] vstack'
>>
>> Signed-off-by: Muhammad Faiz <mfcc64 at gmail.com>
>> ---
>>  libavfilter/avfilter.c | 17 +++++++++++++++++
>>  1 file changed, 17 insertions(+)
>
> Maybe this can be of use:
>
> https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/28c62df672865890cbb13e5f0e94bde29c8fbacd

Unfortunately, this modify pointer to AVFrame, i think it is incompatible
with framequeue framework.

Note that av_frame_make_writable() takes AVFrame*,
while ff_inlink_make_frame_writable() takes AVFrame**.

Thank's