Changes between Version 24 and Version 25 of x264EncodingGuide
- Timestamp:
- 09/25/2012 05:42:13 PM (8 months ago)
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x264EncodingGuide
v24 v25 146 146 === Why doesn't my lossless output look lossless? === 147 147 148 Blame the rgb->yuv conversion. If you convert to yuv4 22p, it should still be lossless (which is the default now).148 Blame the rgb->yuv conversion. If you convert to yuv444, it should still be lossless (which is the default now). 149 149 150 150 === Will a graphics card make x264 encode faster? === 151 151 152 No. x264 doesn't use them at all. There are some proprietary encoders that utilize the GPU, but that does not mean they are very good or well optimized; and they might be [http://phoronix.com/forums/showthread.php?50697-Test-tool-for-snb-h264-encoder-in-libva-git&p=205580#post205580 slower than x264] anyway. But they might be faster. Regardless, FFmpeg today doesn't support any means of gpu encoding.152 No. libx264 doesn't use them (at least not yet). There are some proprietary encoders that utilize the GPU, but that does not mean they are well optimized, though encoding time may be faster; and they might be [http://phoronix.com/forums/showthread.php?50697-Test-tool-for-snb-h264-encoder-in-libva-git&p=205580#post205580 worse than x264] anyway, and possibly slower. Regardless, FFmpeg today doesn't support any means of gpu encoding, outside of libx264.
