DEFAULT_CODEC_ID   42 libavdevice/alsa.h #define DEFAULT_CODEC_ID AV_NE(AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_S16LE)
DEFAULT_CODEC_ID   36 libavdevice/pulse_audio_dec.c #define DEFAULT_CODEC_ID AV_NE(AV_CODEC_ID_PCM_S16BE, AV_CODEC_ID_PCM_S16LE)