inspiregaq.blogg.se - Ffmpeg extract frames from video high quality

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Getting ffmpegįFmpeg development is very active and it is always a good idea to use a recent version.

Since I do not use the fork my answer may not work for you. Who can tell me the difference and relation between ffmpeg, libav, and avconv?.

I've noticed that FFMPEG on my Mac works as expected and generates nice frames, but FFMPEG on my production server that runs Ubuntu exhibits this problem. This is good practice, although it does not matter for your input since you have no audio. It is recommended to be explicit as to which stream you want to apply -q to since ffmpeg can not know if it should be applied to video or audio, so in your case use -q:v.A sane range for -q:v for the encoder mjpeg is 2-5 lower is higher quality.-f image2 is superfluous here since ffmpeg knows that your outputs are images.Therefore, you must move your -q (alias for -qscale) option: ffmpeg -i video_test.avc -q:v 2 frames/frames_%04d.jpg See the FFmpeg synopsis and FFmpeg description for more details on option placement. Options before the input apply to the input, and options before the output generally apply to the output.