fre 2023-02-24 klockan 20:25 +0800 skrev Zhao Zhili: > +static int mov_write_chnl_tag(AVFormatContext *s, AVIOContext *pb, > MOVTrack *track) > +{ > + int64_t pos = avio_tell(pb); > + int layout = 0; > + int ret; > + uint8_t speaker_pos[64] = { }; Magic 64 here too The rest looks OK /Tomas