Hey Carl, Are you sure that this is how HE-AACv2 works? Apple's AVAudioFile class is able to see the correct sampling rate & channel count. AVURLAsset & Exoplayer does not properly see it though. Does ffmpeg write the sampling rate in multiple parts of the MP4 container?
If so, maybe one of them isn't consistent? Ronak > On Mar 17, 2018, at 8:02 AM, Carl Eugen Hoyos <[email protected]> wrote: > > 2018-03-17 12:38 GMT+01:00, Ronak Patel <[email protected]>: >> Hello, >> >> I’m encoding my wav files to HE AAC v2 in 44kHz/32 Kbps and 44/64. > > Command line and complete, uncut console output missing. > >> Ffprobe is correctly showing that the audio is HE AAC v2 stereo with the >> correct sampling rate and nitrate. >> >> When I open the audio in Exoplayer or Apple’s AVURLAsset code, they report >> that the sampling rate is 22050kHz instead. > > I believe this is how SBR ("HE AAC v2") is defined. > > Carl Eugen > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
