ffmpeg で vorbis ogg をいい感じに m4a aac にする - ci7lus

ffmpeg で vorbis ogg をいい感じに m4a aac にする

いい感じというのは完全に主観

code:sh

ffmpeg -i music.ogg -i artwork.png -c:a aac -c:v mjpeg -ar 48000 -ab 320k --disposition:v attached_pic -aac_coder twoloop

subprocess

code:py

p = subprocess.Popen("ffmpeg", "-i", "in.ogg", "-i", "artwork.png", "-c:a", "aac", "-c:v", "mjpeg", "-ar", "48000", "-ab", "320k", "-disposition:v", "attached_pic", "-aac_coder", "twoloop", "dest.m4a", stdout=subprocess.PIPE, stderr=subprocess.STDOUT)

for line in iter(p.stdout.readline, b''):

print(line.rstrip().decode("utf8"))

#ffmpeg #vorbis #ogg #m4a #aac