audio_write_header  166 libavdevice/alsa_enc.c     .write_header   = audio_write_header,
audio_write_header  108 libavdevice/oss_enc.c     .write_header   = audio_write_header,
audio_write_header   98 libavdevice/sndio_enc.c     .write_header   = audio_write_header,