276     avio_wl32(pb, 1);                           /* version */  in peak_write_chunk()
277     avio_wl32(pb, wav->peak_format);            /* 8 or 16 bit */  in peak_write_chunk()
278     avio_wl32(pb, wav->peak_ppv);               /* positive and negative */  in peak_write_chunk()
279     avio_wl32(pb, wav->peak_block_size);        /* frames per value */  in peak_write_chunk()
280     avio_wl32(pb, par->channels);               /* number of channels */  in peak_write_chunk()
281     avio_wl32(pb, wav->peak_num_frames);        /* number of peak frames */  in peak_write_chunk()
282     avio_wl32(pb, -1);                          /* audio sample frame position (not implemented) */  in peak_write_chunk()
283     avio_wl32(pb, 128);                         /* equal to size of header */  in peak_write_chunk()
310         avio_wl32(pb, -1); /* RF64 chunk size: use size in ds64 */  in wav_write_header()
313         avio_wl32(pb, -1); /* file length */  in wav_write_header()
321         avio_wl32(pb, 28); /* chunk size */  in wav_write_header()
340         avio_wl32(pb, 0);  in wav_write_header()
433             avio_wl32(pb, (uint32_t)(file_size - 8));  in wav_write_trailer()
449                 avio_wl32(pb, -1);  in wav_write_trailer()
451                 avio_wl32(pb, number_of_samples);  in wav_write_trailer()
460             avio_wl32(pb, -1);  in wav_write_trailer()
465             avio_wl32(pb, 28);                  /* ds64 chunk size */  in wav_write_trailer()
469             avio_wl32(pb, 0);                   /* number of table entries for non-'data' chunks */  in wav_write_trailer()
473             avio_wl32(pb, -1);  in wav_write_trailer()