пт, 2 июн. 2023 г., 19:51 Andrea paz via Cin <cin@lists.cinelerra-gg.org>:
> Taking advantage of the fact that I compiled a version that uses > system (external) ffmpeg, I did some comparative testing with CinGG > appimage which uses an internal ffmpeg instead. > I report the results: > > Source: blender movie "Tears of steel" 1080p, webm > (Used an interval of the first 1440 frames via In/Out Points) > > mp4; preset h264.mp4 > ffmpeg internal --> render at 117.4 fps (25.4MB) > ffmpeg external --> render at 175.3 fps (22.8MB) > > mxf; preset DNxHR 444 > ffmpeg internal --> render at 92.9 fps (1.8GB) > ffmpeg external --> render at 120.5 fps (1.8GB) > > I had already noticed that ffmpeg from the command line (external) was > faster than ffmpeg inside CinGG; but now we see that even external > ffmpeg called up inside CinGG is still faster than internal ffmpeg. > What could be the cause of this difference? > Some optimizations in swscale, decoders, and encoders? If quality not suffer - this is a win! -- > Cin mailing list > Cin@lists.cinelerra-gg.org > https://lists.cinelerra-gg.org/mailman/listinfo/cin >
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