wav_demuxer_select="riffdec"
wav_muxer_select="riffenc"
webm_muxer_select="riffenc"
-webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
wtv_demuxer_select="riffdec"
wtv_muxer_select="riffenc"
xmv_demuxer_select="riffdec"