ff_alsa_open       84 libavdevice/alsa-audio-dec.c     ret = ff_alsa_open(s1, SND_PCM_STREAM_CAPTURE, &sample_rate, ap->channels,
ff_alsa_open       56 libavdevice/alsa-audio-enc.c     res = ff_alsa_open(s1, SND_PCM_STREAM_PLAYBACK, &sample_rate,
ff_alsa_open       66 libavdevice/alsa-audio.h int ff_alsa_open(AVFormatContext *s, int mode, unsigned int *sample_rate,