H264 used in video for audio stream -


i've been reading on h.264/mpeg4 (avc) format/codec, , understand, it's codec audiovisual content. i've downloaded few hd videos , looked codec in vlc player. i've notice h.264 used lot video codec, can used audio codec?

in picture below see h264 being use in video stream not in audio stream. possible video use h264 codec audio stream?

enter image description here

h.264 video codec, it's covered mpeg-4 part 10 "advanced video coding" , h.264 itu alias same spec.

mpeg-4 part 14 "mp4 file format" format of file hooked onto vlc. it's video part h.264, , it's audio part aac can see on screenshot.

aac audio codec. it's covered mpeg-4 part 3 spec.


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