108     AVCodecParameters *par = s->streams[0]->codecpar;  in caf_write_header()  local
111     unsigned int codec_tag = ff_codec_get_tag(ff_codec_caf_tags, par->codec_id);  in caf_write_header()
113     int frame_size = par->frame_size;  in caf_write_header()
120     switch (par->codec_id) {  in caf_write_header()
126     if (par->codec_id == AV_CODEC_ID_OPUS && par->channels > 2) {  in caf_write_header()
136     if (!par->block_align && !(pb->seekable & AVIO_SEEKABLE_NORMAL)) {  in caf_write_header()
141     if (par->codec_id != AV_CODEC_ID_MP3 || frame_size != 576)  in caf_write_header()
142         frame_size = samples_per_packet(par->codec_id, par->channels, par->block_align);  in caf_write_header()
150     avio_wb64(pb, av_double2int(par->sample_rate));   //< mSampleRate  in caf_write_header()
152     avio_wb32(pb, codec_flags(par->codec_id));        //< mFormatFlags  in caf_write_header()
153     avio_wb32(pb, par->block_align);                  //< mBytesPerPacket  in caf_write_header()
155     avio_wb32(pb, par->channels);                     //< mChannelsPerFrame  in caf_write_header()
156     avio_wb32(pb, av_get_bits_per_sample(par->codec_id)); //< mBitsPerChannel  in caf_write_header()
158     if (par->channel_layout) {  in caf_write_header()
161         ff_mov_write_chan(pb, par->channel_layout);  in caf_write_header()
164     if (par->codec_id == AV_CODEC_ID_ALAC) {  in caf_write_header()
166         avio_wb64(pb, 12 + par->extradata_size);  in caf_write_header()
168         avio_write(pb, par->extradata, par->extradata_size);  in caf_write_header()
169     } else if (par->codec_id == AV_CODEC_ID_AMR_NB) {  in caf_write_header()
180     } else if (par->codec_id == AV_CODEC_ID_QDM2 || par->codec_id == AV_CODEC_ID_QDMC) {  in caf_write_header()
182         avio_wb64(pb, par->extradata_size);  in caf_write_header()
183         avio_write(pb, par->extradata, par->extradata_size);  in caf_write_header()
243     AVCodecParameters *par = s->streams[0]->codecpar;  in caf_write_trailer()  local
251         if (!par->block_align) {  in caf_write_trailer()
255 …avio_wb64(pb, caf->packets * samples_per_packet(par->codec_id, par->channels, par->block_align)); …  in caf_write_trailer()