[Libav-user] avcodec_decode_audio4() help

[Gonzalo Garramuno]

I placed a print statement with:
>
> const char *av_get_sample_fmt_name(enum AVSampleFormat sample_fmt);
>
> and the return value for 1.0.6 is s16, while for 1.1.4 is fltp, which 
> I assume is float planar.
>
> Does this mean I need to use the swresample library to resample the 
> sound to s16 which the audio card can play?
>
When I run the video under ffmpeg I got:

    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, 
s16, 159 kb/s

Stereo, s16.  Why am I getting float data in the newer ffmpegs?