[FFmpeg-devel] Invalid behaviour of av_parser_parse2 with some content
jyavenard at gmail.com
Wed Oct 25 19:37:59 EEST 2017
According to the documentation of av_parser_parse2:
"poutbuf_size set to size of parsed buffer or zero if not yet finished. "
So we can expect that both poutbuf_size and poutbuf will be set upon
However, looking at the code of some parser, such as the vp8 decoder:
we can see that the vp8 parser will do return buf_size immediately
under some circumstances (such as the size being to small, the sync
code being invalid and so forth... but when doing so doesn't set the
two out parameters.
I believe this is a bug....
Either the documentation needs fixing, or the two out parameters needs
to be set to poutbuf and poutbuf_size respectively as all data is to
An alternative would be to set them both to 0 if content is invalid
(or too small) and as such we don't want the parser to output
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