3
votes
1answer
648 views

Downmix from 5.1 Surround to two channel stereo using avconv

I have a .wmv with the audio codec of wmapro, which my target video player chokes on. I am generally in the process to "standardise" my collection to x264/aac (as this works fine on all my devices), ...
1
vote
1answer
476 views

Small pieces of video split by ffmpeg are not playing or playing with artifacts

I'm trying to cut a video file into small parts (0.5-5s) and encode these parts to h.264/aac with ffmpeg. I'm using this command: ffmpeg -i 1.avi -ss 00:05:00 -t 00:00:01,50 -vcodec libx264 -threads ...
0
votes
1answer
760 views

FFMPEG: how to add watermark to video?

My Platform: Ubuntu 10.10 + FFMPEG 0.5.3(I installed ffmpeg from source) I try to add Watermark to a .MOV video with FFMPEG 0.5.3 imlib2.so (Please note FFMPEG 0.6+ dont support imlib2.so, so I use ...
0
votes
1answer
611 views

Automatic adaptive gain normalization

How may I normalize a (voice) audio mp3 or aac file with no loss, having the gain rised as much as possible (mitigating distortion using a compressor), so in a long conversation people that speak ...