[Libav-user] Encode PCM16 to AAC

[Carl Eugen Hoyos]

2018-03-13 17:16 GMT+01:00, Michael IV <explomaster at gmail.com>:
> Hi. I have a PCM 16 bit (signed) stream,which I want to encode using AAC
> codec.
>
> Now I am following the setup of audio encoding example and where  I check
> for
> SAMPLE FMT support by the codec,the check fails:
>
>        while (*p != AV_SAMPLE_FMT_NONE)
> {
> if (*p == c->sample_fmt)
> {
> break;
> }
> p++;
> }
>
> Because AAC codec which I opened contains only AV_SAMPLE_FMT_FLTP
>
> Does it mean I can't use audio data as PCM16 to encode with AAC?

Yes, either use the aresample filter to convert from pcm_s16le to pcm_flt
or use libswresample directly.

Carl Eugen