[FFmpeg-cvslog] h264dec: Dont display trash before a keyframe.

[Reimar Döffinger]

On 17 Sep 2011, at 22:02, git at videolan.org (Michael Niedermayer) wrote:
> ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Sep 17 19:59:48 2011 +0200| [a64b028aeb6579636e578ceb73f69b468bddb2f0] | committer: Michael Niedermayer
> 
> h264dec: Dont display trash before a keyframe.
> Fixes Ticket472
> This may (or may not) cause problems with files that have no keyframes.
> Plese open a bugreport or mail me if you have a file for which this fails.

I strongly dislike this. The user might prefer that "trash" (which for some streams might be fairly good quality, and for streaming trash is a whole lot better than having to wait several seconds before anything happens at all), and FFmpeg shouldn't just decide what is better.
Even more since I think H.264 is now the only codec that does this, IMO this is an inconsistent mess.
There are many simple and more useful ways of solving this, I suggested several like adding an error flag to the context or to AVFrame but nobody showed real interest, instead it's such a "oh, let's break it for the _other_ half of users I instead" solution :-(
>