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I'm saddled with using ffmpeg for some video conversion on an older windows box. Unfortunately my app crawls to a halt whenever ffmpeg is running. Can any ffmpeg experts suggest any performance tips to optimize ffmpeg?
These are the arguments I am supplying ffmpeg with
['-i', _master, '-s', '720x540', '-sws_flags', 'lanczos', '-qscale:v', '1', '-y', _tempMaster]
Actually forgot 2 additional operations
2 CONCATENATE
['-i', "concat:" + _head + "|" + _tempMaster + "|" + _tail, '-c', 'copy', '-y', _concatALL]
3 MUX WITH AUDIO AND HIGH QUALITY TRANSCODE
['-i', _audio, '-i', _concatALL, '-vcodec', 'libx264', '-crf', '22', '-vf', 'hqdn3d=1:1:1:1,unsharp=2:2:.7:2:2:0.0', '-y', _finalOutput]
Please show the actual ffmpeg commands and the complete console outputs. – llogan – 2013-05-02T17:30:25.660