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Mostrando postagens com marcador linux. Mostrar todas as postagens
Mostrando postagens com marcador linux. Mostrar todas as postagens

sábado, 25 de outubro de 2014

Alterar volume de áudio com FFmpeg

Abaixar ou aumentar o volume de um áudio usando o FFmpeg, basta usar o filtro de audio "volume":

$ ffmpeg -i input.wav -af 'volume=0.5' output.wav 

Nesse caso, o volume é diminuido pela metade.

Cortar vídeo usando FFmpeg

Exemplo: cortar um vídeo dos 2m10s aos 3m30s (1m20s a partir de 2m10s).

$ ffmpeg -ss 00:02:10 -i video.mp4 -to 00:01:20 -c copy cut.mp4