[FFmpeg-devel] [PATCH] AAC: [PATCH] AAC: Add support for 7350Hz sampling rates

Michael Niedermayer michaelni at gmx.at
Mon Mar 9 17:38:05 CET 2015

On Mon, Mar 09, 2015 at 01:31:26PM -0300, Claudio Freire wrote:
> On Mon, Mar 9, 2015 at 1:26 PM, Michael Niedermayer <michaelni at gmx.at> wrote:
> > doesnt help
> > but
> > this does:
> > -fate-aac-s7350-encode: CMD = enc_dec_pcm adts wav s16le $(REF) -strict -2 -c:a aac -b:a 256k
> > +fate-aac-s7350-encode: CMD = enc_dec_pcm adts wav s16le $(REF) -strict -2 -c:a aac -b:a 88k
> >
> > this seems to fix it, didnt ivestigate why ...
> 88k is the maximum allowed bitrate at 7350hz, but it shouldn't make
> any difference given that lavc/aacenc.c:775 already clamps the bitrate
> to that number.

i think it clamps to 88200 while 88k sets 88000
i can reproduce the difference with -b:a 88200


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Into a blind darkness they enter who follow after the Ignorance,
they as if into a greater darkness enter who devote themselves
to the Knowledge alone. -- Isha Upanishad
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 181 bytes
Desc: Digital signature
URL: <https://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20150309/07424f50/attachment.asc>

More information about the ffmpeg-devel mailing list