Originally committed as revision 8042 to svn://svn.ffmpeg.org/ffmpeg/trunk
} else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
put_le16(pb, 2); /* wav_extra_size */
hdrsize += 2;
- put_le16(pb, ((enc->block_align - 4 * enc->channels) / (4 * enc->channels)) * 8 + 1); /* wSamplesPerBlock */
+ put_le16(pb, enc->frame_size); /* wSamplesPerBlock */
} else if(enc->extradata_size){
put_le16(pb, enc->extradata_size);
put_buffer(pb, enc->extradata, enc->extradata_size);