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intel / libyami

Yet Another Media Infrastructure. it is core part of media codec with hardware acceleration, it is yummy to your video experience on Linux like platform.
Apache License 2.0
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Fix low latency #849

Closed xuguangxin closed 6 years ago

xuguangxin commented 6 years ago

two things done to fix low latency mode.

  1. output output-able frame immediately when we add a frame to dpb. Do not check "current poc - previous poc == 1", this will introduce problem for poc "0, 2, 4, 6, 8"
  2. add a flag VIDEO_DECODE_BUFFER_FLAG_FRAME_END to tell decoder to stop search next frame, so the decoder can decode current frame ASAP this fixes https://github.com/intel/libyami/issues/844 and https://github.com/intel/libyami/issues/847
jsorg71 commented 6 years ago

It looks like h265 will have this feature too. Is that correct?

xuguangxin commented 6 years ago

@jsorg71 , h265 may not need this. Bitstream will carry latency indication. see checkLatency . h264 does not have this, it only checks dpb fullness. This is why we need a flag for h264.

uartie commented 6 years ago

status?

xuguangxin commented 6 years ago

Hi @uartie , sorry for late.