[FFmpeg-cvslog] lavc/videotoolbox: fix H.264 hwaccel init issue

[Clément Bœsch]

On Fri, Jun 17, 2016 at 09:43:09AM -0400, Richard Kern wrote:
> Since ca2f19b9cc (h264: switch to h2645_parse for NAL parsing) the hwaccel wouldn’t init (when the first h.264 frame is decoded). It was the same on OS X and iOS - creating the decoder would return a “decoder malfunction” error. Apple’s suggested way to create the decoder config for h.264 decoders is CMVideoFormatDescriptionCreateFromH264ParameterSets(), and switching to this function solved the issue on OS X and iOS. A user on IRC confirmed it worked for them too.
> 

So avc_info constructed from extradata in decoder_config_create() wasn't
enough? (Any idea why?)

"the hwaccel wouldn't init", why? Is it because the SPS/PPS NALs were
somehow split out of the packets since ca2f19b9cc and thus VT never got
them, or I misunderstand?

-- 
Clément B.
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