On Mon, Dec 19, 2016 at 20:45:59 +0100, Bernhard Döbler wrote: > FFMpeg Doc says > cutoff > Set cutoff bandwidth in Hz. > > https://ffmpeg.org/ffmpeg-codecs.html
More precisely in this section: https://ffmpeg.org/ffmpeg-codecs.html#Codec-Options What that documentation doesn't say is that it isn't generally valid. Furthermore, the encoders aac, libfdk_aac, libopus, libvorbis document it in their own sections (and make use of the option), the encoder ac3 also seems to use the option. Indeed, libmp3lame.c probably only needs a call in mp3lame_encode_init() to pass the option on to the encoding library: if (avctx->cutoff) lame_set_lowpassfreq(s->gfp, avctx->cutoff); I can provide (and perhaps test) a simple patch to ffmpeg-devel, if nobody beats me to it. Moritz _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
