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DarkFoon · 10th October 2005, 06:43

I stand corrected.

By the way, how is max bitrate determined by quenc/libavc? I remember come confusion on the subject a while back.
I always thought it was the number of bits used to encode 30 frames (NTSC) or 25 frames (PAL). And when a new frame was encoded, the oldest frame in the comparison group (the 30 or 25 frames used to determine max bitrate) was dumped, and the newest frame could have at most as many bits that would make the group total the max bitrate.

hmmm, but that wouldn't work too well... if there were 29 frames of 0 bits(unlikely), the 30th frame could by 8.5 megabits in size (assuming max bitrate=8500) which would totally mess up set top playback devices.

10th October 2005, 06:43	#246 \| Link
DarkFoon Awakened to video Dec2003 Join Date: Dec 2003 Location: US West Posts: 191	I stand corrected. By the way, how is max bitrate determined by quenc/libavc? I remember come confusion on the subject a while back. I always thought it was the number of bits used to encode 30 frames (NTSC) or 25 frames (PAL). And when a new frame was encoded, the oldest frame in the comparison group (the 30 or 25 frames used to determine max bitrate) was dumped, and the newest frame could have at most as many bits that would make the group total the max bitrate. hmmm, but that wouldn't work too well... if there were 29 frames of 0 bits(unlikely), the 30th frame could by 8.5 megabits in size (assuming max bitrate=8500) which would totally mess up set top playback devices. __________________ Mac killed my inner-child My Quant Matrices: Caerulea For MPEG-2 DVD Destination Anime Simple Lo General Purpose MPEG-2 (tested with anime only)