2014-08-03 01:10:45 +02:00
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#include "meta.h"
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#include "../util.h"
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VGMSTREAM * init_vgmstream_bfwav(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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2014-08-03 05:32:30 +02:00
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char filename[PATH_LIMIT];
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2014-08-03 01:10:45 +02:00
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coding_t coding_type;
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2017-07-05 19:47:30 +02:00
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coding_t coding_PCM16;
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int32_t (*read_32bit)(off_t,STREAMFILE*) = NULL;
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int16_t (*read_16bit)(off_t,STREAMFILE*) = NULL;
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2014-08-03 01:10:45 +02:00
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2016-12-27 16:33:10 +01:00
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/*int ima = 0;*/
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2014-10-18 23:54:31 +02:00
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int nsmbu_flag = 0;
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2014-08-03 05:51:21 +02:00
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2014-10-20 01:34:03 +02:00
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off_t data_offset;
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off_t head_offset;
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int codec_number;
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int channel_count;
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int loop_flag;
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off_t start_offset;
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2014-08-03 01:10:45 +02:00
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/* check extension, case insensitive */
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streamFile->get_name(streamFile, filename, sizeof(filename));
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2014-10-20 01:34:03 +02:00
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if (strcasecmp("bfwav", filename_extension(filename)) && strcasecmp("fwav", filename_extension(filename))) {
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2014-10-18 23:54:31 +02:00
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if (strcasecmp("bfwavnsmbu",filename_extension(filename))) goto fail;
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else nsmbu_flag = 1;
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}
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2014-08-03 01:10:45 +02:00
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/* check header */
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if ((uint32_t)read_32bitBE(0, streamFile) != 0x46574156) /* "FWAV" */
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goto fail;
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2017-07-05 19:47:30 +02:00
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if ((uint16_t)read_16bitBE(4, streamFile) == 0xFEFF) { /* endian marker (BE most common) */
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read_32bit = read_32bitBE;
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read_16bit = read_16bitBE;
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coding_PCM16 = coding_PCM16BE;
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} else if ((uint16_t)read_16bitBE(4, streamFile) == 0xFFFE) { /* LE endian marker */
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read_32bit = read_32bitLE;
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read_16bit = read_16bitLE;
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coding_PCM16 = coding_PCM16LE;
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} else {
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2014-08-03 01:10:45 +02:00
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goto fail;
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2017-07-05 19:47:30 +02:00
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}
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2014-08-03 01:10:45 +02:00
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/* get head offset, check */
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2014-10-20 01:34:03 +02:00
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head_offset = read_32bit(0x18, streamFile);
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data_offset = read_32bit(0x24, streamFile);
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2014-08-03 01:10:45 +02:00
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if ((uint32_t)read_32bitBE(head_offset, streamFile) != 0x494E464F) /* "INFO" (FWAV)*/
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goto fail;
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/* check type details */
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codec_number = read_8bit(head_offset + 0x8, streamFile);
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loop_flag = read_8bit(head_offset + 0x9, streamFile);
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2017-07-05 19:47:30 +02:00
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channel_count = read_32bit(head_offset + 0x1C, streamFile);
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2014-08-03 01:10:45 +02:00
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switch (codec_number) {
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case 0:
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coding_type = coding_PCM8;
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break;
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case 1:
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2017-07-05 19:47:30 +02:00
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coding_type = coding_PCM16;
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2014-08-03 01:10:45 +02:00
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break;
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case 2:
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coding_type = coding_NGC_DSP;
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break;
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default:
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goto fail;
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}
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if (channel_count < 1) goto fail;
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count, loop_flag);
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if (!vgmstream) goto fail;
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/* fill in the vital statistics */
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vgmstream->num_samples = read_32bit(head_offset + 0x14, streamFile);
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2014-10-18 23:54:31 +02:00
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if (nsmbu_flag)
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2014-10-20 01:34:03 +02:00
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vgmstream->sample_rate = 16000;
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else
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2017-07-05 19:47:30 +02:00
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vgmstream->sample_rate = (uint16_t)read_32bit(head_offset + 0xC, streamFile);
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2014-08-03 01:10:45 +02:00
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/* channels and loop flag are set by allocate_vgmstream */
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vgmstream->loop_start_sample = read_32bit(head_offset + 0x10, streamFile);
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vgmstream->loop_end_sample = vgmstream->num_samples;
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vgmstream->coding_type = coding_type;
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if (channel_count == 1)
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vgmstream->layout_type = layout_none;
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else
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2014-10-20 01:34:03 +02:00
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vgmstream->layout_type = layout_interleave;
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2014-08-03 01:10:45 +02:00
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2014-10-20 01:34:03 +02:00
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vgmstream->meta_type = meta_FWAV;
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2017-07-05 19:47:30 +02:00
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vgmstream->interleave_block_size = read_32bit(read_32bit(0x6c, streamFile) + 0x60, streamFile) - 0x18;
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2014-10-20 01:34:03 +02:00
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2014-08-03 01:10:45 +02:00
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2014-10-20 01:34:03 +02:00
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start_offset = data_offset + 0x20;
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2014-08-03 01:10:45 +02:00
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if (vgmstream->coding_type == coding_NGC_DSP) {
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int i, j;
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for (j = 0; j<vgmstream->channels; j++) {
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for (i = 0; i<16; i++) {
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2017-07-05 19:47:30 +02:00
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off_t coeffheader = head_offset + 0x1C + read_32bit(head_offset + 0x24 + (j*8), streamFile);
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if ((uint32_t)read_16bit(coeffheader, streamFile) != 0x1F00) goto fail;
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off_t coef_offset = read_32bit(coeffheader + 0xC, streamFile) + coeffheader;
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2017-07-07 02:39:48 +02:00
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vgmstream->ch[j].adpcm_coef[i] = read_16bit(coef_offset + i * 2, streamFile);
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2014-08-03 01:10:45 +02:00
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}
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}
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}
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/* open the file for reading by each channel */
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{
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int i;
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for (i = 0; i<channel_count; i++) {
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if (vgmstream->layout_type == layout_interleave_shortblock)
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vgmstream->ch[i].streamfile = streamFile->open(streamFile, filename,
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vgmstream->interleave_block_size);
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else if (vgmstream->layout_type == layout_interleave)
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vgmstream->ch[i].streamfile = streamFile->open(streamFile, filename,
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STREAMFILE_DEFAULT_BUFFER_SIZE);
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else
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vgmstream->ch[i].streamfile = streamFile->open(streamFile, filename,
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0x1000);
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if (!vgmstream->ch[i].streamfile) goto fail;
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vgmstream->ch[i].channel_start_offset =
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vgmstream->ch[i].offset =
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start_offset + i*vgmstream->interleave_block_size;
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}
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}
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return vgmstream;
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/* clean up anything we may have opened */
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fail:
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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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2016-12-27 16:33:10 +01:00
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}
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