ff_v4l2_m2m_codec_init   96 libavcodec/v4l2_m2m.h int ff_v4l2_m2m_codec_init(V4L2m2mPriv *priv);
ff_v4l2_m2m_codec_init  212 libavcodec/v4l2_m2m_dec.c     ret = ff_v4l2_m2m_codec_init(priv);
ff_v4l2_m2m_codec_init  345 libavcodec/v4l2_m2m_enc.c     ret = ff_v4l2_m2m_codec_init(priv);