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

Michael Niedermayer michaelni at gmx.at
Sat May 30 19:21:55 CEST 2015

On Sat, May 30, 2015 at 10:09:54AM -0700, Michael Bradshaw wrote:
> 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.

i think so too

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No human being will ever know the Truth, for even if they happen to say it
by chance, they would not even known they had done so. -- Xenophanes
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