first of all wow! this decoder really blows away!
i guess i can for the first time decode D1 res avc + he-aac in realtime on my 866mhz pentium3
here my speed results for
x264_hp_2pass_720x288_B3-Ref_Ref5_p4x4-i8x8_loop-5_WBP_cabac:
coreavc-tcpmp: 90.32fps
ateme: 50.62fps
ffmpeg-mplayer: 49.91fps
ffmpeg-ffdshow: 44.98fps
ffmpeg-tcpmp: 38.58fps
i guess the values speak for themselves, coreavc-tcpmp is ~80% faster than the second fastest decoder, ateme!!!
the tcpmp values are derived via the tcpmp benchmark option together with "null video".
with directdraw video i still get 36.92fps
as i see it the now used avc features not supported by coreavc are:
- custom quant matrices
- lossless
- interlacing
i hope at least the first two will be supported too
another interesting thing i saw was that ffmpeg avc decoding via tcpmp is clearly more slower than when decoding with ffmpeg via ffdshow or mplayer. i guess thats because tcpmp itself is not that fast?
Quote:
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Originally Posted by PicardGK
Thanks. The problem was caused by a buffering problem with high bitrate files dropping reference frames (there were also some audio gaps)
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i am wondering when does tcpmp drop frames? and is it possible to disable this, so i know for sure that tcpmp plays my videos in realtime without dropping frames