[FFmpeg-devel] H.264 Lossless Decoding Patch (Profile 244) for 8x8 Intra Prediction

[Hendrik Leppkes]

On Wed, Mar 5, 2014 at 8:14 PM, Reimar Döffinger
<Reimar.Doeffinger at gmx.de> wrote:
> On 05.03.2014, at 20:05, Jason Garrett-Glaser <darkshikari at gmail.com> wrote:
>> This will break decoding on all x264-encoded lossless files (the vast
>> majority of lossless files) produced in the past half decade or so.
>
> Any chance of auto-detecting this? (reliably?)
> Either way I guess it should be configured by a bug workaround flag as we do for other codecs.

The decoder already parses the x264 version string and sets
H264Context->x264_build. Could make it switch implementation based on
that. That is assuming the person encoding didn't go out of their way
to purge this information.