Quote:
Originally Posted by Gser
But what about playing AC3 on DVD's? Was there no system sounds then? It's been too long, I can't remember. Personally I don't seen much use of systems sounds during file playback so it would have been a sacrifice I would have been more than willing to make. I also didn't have a surround setup so decoding AC3 to stereo PCM and then adding system sounds to that would have also been no problem. The very reason I joined this forum was because of this problem.
Thanks for all this information btw. I can now settle my nerdrage and sleep a bit better at night.
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I
think passthrough was enabled (eventually?) for optical discs, since system audio isn't expected then (DVD players don't do it once a movie is playing). File playback is a lot more interactive.
But this is getting quite off topic from H.264 decoder support. One lesson that comes out of this is that Level 4.0 support is pretty well understood. But Level 4.1 has caveats on different implementations and formats. For example, on Blu-ray Level 4.1 requires 4 slices, but if you use Level 4.0, there isn't a slice requirement.
So, to answer the original question, I would say Level 4.1 is NOT safe at this point, although it's gotten a lot better.