76     AVCodecParameters *par;  in alp_read_header()  local
115     par                         = st->codecpar;  in alp_read_header()
116     par->codec_type             = AVMEDIA_TYPE_AUDIO;  in alp_read_header()
117     par->codec_id               = AV_CODEC_ID_ADPCM_IMA_ALP;  in alp_read_header()
118     par->format                 = AV_SAMPLE_FMT_S16;  in alp_read_header()
119     par->sample_rate            = hdr->sample_rate;  in alp_read_header()
120     par->channels               = hdr->num_channels;  in alp_read_header()
123         par->channel_layout     = AV_CH_LAYOUT_MONO;  in alp_read_header()
125         par->channel_layout     = AV_CH_LAYOUT_STEREO;  in alp_read_header()
129     par->bits_per_coded_sample  = 4;  in alp_read_header()
130     par->bits_per_raw_sample    = 16;  in alp_read_header()
131     par->block_align            = 1;  in alp_read_header()
132     par->bit_rate               = par->channels *  in alp_read_header()
133                                   par->sample_rate *  in alp_read_header()
134                                   par->bits_per_coded_sample;  in alp_read_header()
136     avpriv_set_pts_info(st, 64, 1, par->sample_rate);  in alp_read_header()
143     AVCodecParameters *par = s->streams[0]->codecpar;  in alp_read_packet()  local
150     pkt->duration       = ret * 2 / par->channels;  in alp_read_packet()
182     AVCodecParameters *par;  in alp_write_init()  local
196     par = s->streams[0]->codecpar;  in alp_write_init()
198     if (par->codec_id != AV_CODEC_ID_ADPCM_IMA_ALP) {  in alp_write_init()
200                avcodec_get_name(par->codec_id));  in alp_write_init()
204     if (par->channels > 2) {  in alp_write_init()
209     if (par->sample_rate > 44100) {  in alp_write_init()
214     if (alp->type == ALP_TYPE_TUN && par->sample_rate != 22050) {  in alp_write_init()
224     AVCodecParameters *par = s->streams[0]->codecpar;  in alp_write_header()  local
230     avio_w8(s->pb,    par->channels);  in alp_write_header()
232         avio_wl32(s->pb, par->sample_rate);  in alp_write_header()