[Libav-user] Crash/access violation when flushing when encoding audio

[Michael Bradshaw]

Hi,

I'm encoding an AMR-NB stream, and I see that the libopen-core-amrnb
encoder has the CODEC_CAP_DELAY capability set. If I call
avcodec_encode_audio2() with a NULL frame (like the docs say to when
flushing the stream) more than once, I get an access violation and a
crash (it works the first time though). I have to call
av_init_packet() on the packet I pass to avcodec_encode_audio2() in
order to avoid the crash (despite the fact that the docs say
avcodec_encode_audio2() will call av_init_packet() for me (and I am
setting the data and size fields of the packet to my own buffer, if
that matters)). Is this behavior expected and lacking documentation,
or is it likely a bug? I can, of course, provide greater details if it
looks like a bug.

Thanks,

Michael