MPlayer: cambiar el brillo/contraste al archivo de video y guardar la salida

I need to change brightness and contrast to a video permanently, I tried this:

mplayer -vf eq=50:50 a.mp4 -dumpstream
mv stream.dump b.mp4

But it saves as a file which look likes the original file. Any idea?

preguntado el 31 de julio de 12 a las 12:07

1 Respuestas

You want to use mencoder to transcode the video to apply the video filter eq=50:50. Cuando usas -dumpstream with mplayer, it simply dumps the stream while the video filter is being applied to playback. Take a look at the mencoder options, but you'll need to chose a video codec and some options for that codec (like bitrate). Then you can apply the brightness and contrast filter.

Respondido 01 ago 12, 08:08

con el comando: mencoder a.mp4 -oac copy -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=8000 -vf eq=75:100 -force-avi-aspect 1.777 -o b.mp4 i get the video but the video bitrate doesn't match with the vbitrate... grgrgrg i tried with bits, bytes, kbytes, always puts: Video stream: 602.555 kbit/s WTF - ZiTAL

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