Implement HTMLMediaElement.fastSeek(), basically by changing all the
MediaDecoderReader::Seek() overrides to not call
MediaDecoderReader::DecodeToTarget(), and have MediaDecoderReader::DecodeSeek()
call DecodeToTarget() if we're doing an accurate (non-fast) seek.
Update gizmo.mp4 to have a keyframe every second, instead of only 1 keyframe at
the start of stream. This makes the unit test I added more useful for mp4...
I pushed most of the seek target clamping logic in MediaDecoder up into
HTMLMediaElement, so that we're clamping in fewer places. Note
MediaDecoderStateMachine::Seek() still sanity checks the seek target.
We have to update the currentTime/MediaDecoder playback position after a seek
completes now, rather than assuming the seek always got it exactly right.
Removed those pesky assertions about seek target lying in the first frame after
seek, since actually sometimes the media doesn't have samples for all streams
after a seek (either due to the media being encoded like that, or because of a
bug in the platform's decoder, not entirely sure).
Green: https://tbpl.mozilla.org/?tree=Try&rev=b028258565e2
* * *
Bug 778077 - Fix up MediaOMXReader fastseek to ensure audio stream stays in sync with video stream. r=cajbir
to remove any implication that the function might be for calculating
the number of output channels for an AudioNode.
--HG--
extra : transplant_source : %D9%12%BB%23n%92%EB%F7%1Df%11%3F%04%B4z%606%ADT%3A
The difference from Blink here is that Blink plays silence for if element
channel counts are > 32, but here more channels are down-mixed. Media stream
channel counts are also fixed to 2 in Blink, but that restriction is not
applied here.
Leaving the "inline" const static/class member initialization of
MaxChannelCount left missing symbols with gcc 4.7.3.
--HG--
extra : transplant_source : %C9%BA%84%0F%E8%89%E2%85p%B8%28%EF%E9M%CC%81%B9ob/
The extra null samples were mostly harmless, and may have even helped avoid
bug 983062 sometimes, but caused the "Samples missing" assertion to fail.
--HG--
extra : transplant_source : M%D6%B4ra2%AE%DA%EC%82%E1%D8_%83%9F%FBw%F2%ECh
Implement HTMLMediaElement.fastSeek(), basically by changing all the
MediaDecoderReader::Seek() overrides to not call
MediaDecoderReader::DecodeToTarget(), and have MediaDecoderReader::DecodeSeek()
call DecodeToTarget() if we're doing an accurate (non-fast) seek.
Update gizmo.mp4 to have a keyframe every second, instead of only 1 keyframe at
the start of stream. This makes the unit test I added more useful for mp4...
I pushed most of the seek target clamping logic in MediaDecoder up into
HTMLMediaElement, so that we're clamping in fewer places. Note
MediaDecoderStateMachine::Seek() still sanity checks the seek target.
We have to update the currentTime/MediaDecoder playback position after a seek
completes now, rather than assuming the seek always got it exactly right.
Removed those pesky assertions about seek target lying in the first frame after
seek, since actually sometimes the media doesn't have samples for all streams
after a seek (either due to the media being encoded like that, or because of a
bug in the platform's decoder, not entirely sure).
Green: https://tbpl.mozilla.org/?tree=Try&rev=b028258565e2
