43     AVCodecParameters *par;  in fwse_read_header()  local
57     par              = st->codecpar;  in fwse_read_header()
58     par->codec_type  = AVMEDIA_TYPE_AUDIO;  in fwse_read_header()
59     par->codec_id    = AV_CODEC_ID_ADPCM_IMA_MTF;  in fwse_read_header()
60     par->format      = AV_SAMPLE_FMT_S16;  in fwse_read_header()
61     par->channels    = avio_rl32(pb);  in fwse_read_header()
62     if (par->channels != 1 && par->channels != 2)  in fwse_read_header()
64     if (par->channels == 1)  in fwse_read_header()
65         par->channel_layout = AV_CH_LAYOUT_MONO;  in fwse_read_header()
66     else if (par->channels == 2)  in fwse_read_header()
67         par->channel_layout = AV_CH_LAYOUT_STEREO;  in fwse_read_header()
69     par->sample_rate = avio_rl32(pb);  in fwse_read_header()
70     if (par->sample_rate <= 0 || par->sample_rate > INT_MAX)  in fwse_read_header()
73     par->block_align = 1;  in fwse_read_header()
76     avpriv_set_pts_info(st, 64, 1, par->sample_rate);  in fwse_read_header()