[FFmpeg-devel] [PATCH] vp9: avoid infinite loop with broken files

Hendrik Leppkes h.leppkes at gmail.com
Sat Jan 10 18:03:48 CET 2015

On Sat, Jan 10, 2015 at 6:00 PM, wm4 <nfxjfg at googlemail.com> wrote:

> With a certain fuzzed file, the parser will always return 0 consumed
> bytes, which makes calling code call the parser infinitely. Return the
> full packet size on error instead. (Here it would be nice if parsers
> could return errors at all.)
> Additionally, _if_ there's some data left, return that too, which might
> help with somewhat broken but still somehow playable files.
> Fixes ticket #4242.
> ---
> There might be a more elegant way to fix this.
> Also, not sure if the change *out_size has any worth.

Signaling the out_size would mean it should forward the data to the
decoder, if it remains 0 the data is just swallowed. What would make more
sense in this case?

- Hendrik

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