• Compression Techniques

  slice or frame based multi-threading libavcodec

  Posted by Anoop Bhagyanath on February 7, 2012 at 12:53 pm

  hello,

  i was trying to understand the level of parallelization implemented in ffmpeg libavcodec decoding h264 coded video files. i see decoding happening parallelly at frame level and slice level, with the number of threads limited to (number of cores + 1). but i could not figure out how they decide which level of parallelization to use for any video file. i find that the decision is taken based on the value of codeccontext->active_thread_type. but where is this parameter set ? please let me know if anyone is aware of this.

  thank you,
  bhagya

  Anoop Bhagyanath replied 14 years, 7 months ago 1 Member · 0 Replies
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