On Thu, Oct 11, 2012 at 5:15 PM, Carl Eugen Hoyos <[email protected]> wrote: > Michael Bradshaw <mbradshaw@...> writes: > >> QuickTime reports it as mono. So does Windows Media Player. It plays >> ok in ffplay and QuickTime though (didn't try Windows Media Player). >> >> Seeing as remuxing the audio stream to plain .aac seems to have fixed >> the issue, I'm thinking the container might be bad. Do you know of any >> tools or options in ffmpeg to help validate that conclusion? > > I would say you just have to open out.aac in QuickTime > or am I wrong?
Actually, I just tried ffmpeg -i ~/MP4-Apple264-AACPlus.mp4 -acodec copy -vcodec copy ~/out.mp4 and it generated a .mp4 with the same issue (that is, ffprobe -show_streams reports the audio stream as having 1 channel, whereas the dump and show_frames reports 2 channels). I get the same thing if I also do ./ffmpeg -i ~/MP4-Apple264-AACPlus.mp4 -acodec copy -vn ~/out.mp4 Why would ffmpeg generate an .mp4 with the same issue? I think it's weird because if I just remux the audio alone to a .aac it works fine in ffprobe, but if I remux it into .mp4 it has the same problems. _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
