Could we know how ffmpeg determine audio channel number from MP4 file? MP4
container indicates it's channel count is 2, but ffprobe shows mono as
expected.
ffprobe probably looks at the actual AAC stream?
Here's a hint:
http://sourceforge.net/p/opencore-amr/mailman/message/31876733/
The
* Moritz Barsnick on Friday, December 05, 2014 at 10:37:14 +0100
Could we know how ffmpeg determine audio channel number from MP4 file? MP4
container indicates it's channel count is 2, but ffprobe shows mono as
expected.
ffprobe probably looks at the actual AAC stream?
Here's a hint:
Hi,
Could we know how ffmpeg determine audio channel number from MP4 file? MP4
container indicates it's channel count is 2, but ffprobe shows mono as
expected.
--
I use ffmpeg to convert a audio into mono by the following command:
ffmpeg -y -t 30 -i audio.mp4 -dn -sn -vn -map 0 -c:a libfdk_aac