[FFmpeg-devel] [libav-devel] [PATCH] libopenjpegdec: check existence of image component data

[Michael Bradshaw]

On Sat, May 30, 2015 at 7:50 AM, Andreas Cadhalpun <
andreas.cadhalpun at googlemail.com> wrote:

> On 30.05.2015 16:41, Luca Barbato wrote:
> > Do you happen to know why it does do that?
>
> It encounters a problem, but only warns about it and returns the image
> anyway. The warning is not sent to stdout with libavcodec, but can be seen
> with j2k_dump:
> [WARNING] 0000006a: expected a marker instead of 0


Then perhaps a opj_event_mgr_t event handler should be registered. The
openjpeg encoder does this to log all warnings with av_log. But if openjpeg
is giving back bad data without a warning/error code from the returning
function, then perhaps this error check is justified.