mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-11-29 00:34:33 +01:00
Fix some Switch .bfwav interleave/panning; cleanup
This commit is contained in:
bnnm
parent
e8aad5a38a
commit
adc7a776f9
178
src/meta/bfwav.c
178
src/meta/bfwav.c
@ -1,145 +1,133 @@
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#include "meta.h"
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#include "../util.h"
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#include "../coding/coding.h"
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/* FWAV - Nintendo streams */
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VGMSTREAM * init_vgmstream_bfwav(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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char filename[PATH_LIMIT];
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coding_t coding_type;
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coding_t coding_PCM16;
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off_t start_offset;
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off_t info_offset, data_offset;
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int channel_count, loop_flag, codec;
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int big_endian;
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size_t interleave = 0;
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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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/*int ima = 0;*/
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int nsmbu_flag = 0;
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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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/* check extension, case insensitive */
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streamFile->get_name(streamFile, filename, sizeof(filename));
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if (strcasecmp("bfwav", filename_extension(filename)) && strcasecmp("fwav", filename_extension(filename))) {
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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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/* check header */
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if ((uint32_t)read_32bitBE(0, streamFile) != 0x46574156) /* "FWAV" */
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/* checks */
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/* .bfwavnsmbu: fake extension to detect New Super Mario Bros U files with weird sample rate */
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if (!check_extensions(streamFile, "bfwav,fwav,bfwavnsmbu"))
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goto fail;
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nsmbu_flag = check_extensions(streamFile, "bfwavnsmbu");
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if ((uint16_t)read_16bitBE(4, streamFile) == 0xFEFF) { /* endian marker (BE most common) */
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/* FWAV header */
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if (read_32bitBE(0x00, streamFile) != 0x46574156) /* "FWAV" */
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goto fail;
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/* 0x06(2): header size (0x40), 0x08: version (0x00010200), 0x0c: file size 0x10(2): sections (2) */
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if ((uint16_t)read_16bitBE(0x04, streamFile) == 0xFEFF) { /* BE BOM check */
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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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big_endian = 1;
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} else if ((uint16_t)read_16bitBE(0x04, streamFile) == 0xFFFE) { /* LE BOM check */
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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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big_endian = 0;
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} else {
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goto fail;
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}
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/* get head offset, check */
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head_offset = read_32bit(0x18, streamFile);
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data_offset = read_32bit(0x24, streamFile);
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info_offset = read_32bit(0x18, streamFile); /* 0x14(2): info mark (0x7000), 0x1c: info size */
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data_offset = read_32bit(0x24, streamFile); /* 0x20(2): data mark (0x7001), 0x28: data size */
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if ((uint32_t)read_32bitBE(head_offset, streamFile) != 0x494E464F) /* "INFO" (FWAV)*/
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/* INFO section */
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if (read_32bitBE(info_offset, streamFile) != 0x494E464F) /* "INFO" */
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goto fail;
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codec = read_8bit(info_offset + 0x08, streamFile);
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loop_flag = read_8bit(info_offset + 0x09, streamFile);
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channel_count = read_32bit(info_offset + 0x1C, streamFile);
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/* parse channel table */
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{
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off_t channel1_info, data_start;
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int i;
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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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channel_count = read_32bit(head_offset + 0x1C, streamFile);
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channel1_info = info_offset + 0x1c + read_32bit(info_offset+0x20+0x08*0+0x04, streamFile);
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data_start = read_32bit(channel1_info+0x04, streamFile); /* within "DATA" after 0x08 */
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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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coding_type = coding_PCM16;
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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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/* channels use absolute offsets but should be ok as interleave */
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interleave = 0;
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if (channel_count > 1) {
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off_t channel2_info = info_offset + 0x1c + read_32bit(info_offset+0x20+0x08*1+0x04, streamFile);
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interleave = read_32bit(channel2_info+0x04, streamFile) - data_start;
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}
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start_offset = data_offset + 0x08 + data_start;
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/* validate all channels just in case of multichannel with non-constant interleave */
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for (i = 0; i < channel_count; i++) {
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/* channel table, 0x00: flag (0x7100), 0x04: channel info offset */
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off_t channel_info = info_offset + 0x1c + read_32bit(info_offset+0x20+0x08*i+0x04, streamFile);
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/* channel info, 0x00(2): flag (0x1f00), 0x04: offset, 0x08(2): ADPCM flag (0x0300), 0x0c: ADPCM offset */
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if ((uint16_t)read_16bit(channel_info+0x00, streamFile) != 0x1F00)
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goto fail;
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if (read_32bit(channel_info+0x04, streamFile) != data_start + interleave*i)
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goto fail;
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}
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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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vgmstream->sample_rate = read_32bit(info_offset + 0x0C, streamFile);
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if (nsmbu_flag)
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vgmstream->sample_rate = 16000;
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else
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vgmstream->sample_rate = (uint16_t)read_32bit(head_offset + 0xC, streamFile);
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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->num_samples = read_32bit(info_offset + 0x14, streamFile);
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vgmstream->loop_start_sample = read_32bit(info_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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vgmstream->layout_type = layout_interleave;
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vgmstream->meta_type = meta_FWAV;
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vgmstream->layout_type = (channel_count == 1) ? layout_none : layout_interleave;
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vgmstream->interleave_block_size = interleave;
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vgmstream->interleave_block_size = read_32bit(read_32bit(0x6c, streamFile) + 0x60, streamFile) - 0x18;
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switch (codec) {
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case 0x00:
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vgmstream->coding_type = coding_PCM8;
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break;
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case 0x01:
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vgmstream->coding_type = big_endian ? coding_PCM16BE : coding_PCM16LE;
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break;
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start_offset = data_offset + 0x20;
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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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off_t coeffheader = head_offset + 0x1C + read_32bit(head_offset + 0x24 + (j*8), streamFile);
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off_t coef_offset;
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if ((uint32_t)read_16bit(coeffheader, streamFile) != 0x1F00) goto fail;
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coef_offset = read_32bit(coeffheader + 0xC, streamFile) + coeffheader;
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vgmstream->ch[j].adpcm_coef[i] = read_16bit(coef_offset + i * 2, streamFile);
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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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case 0x02:
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vgmstream->coding_type = coding_NGC_DSP;
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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)
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vgmstream->ch[i].streamfile = streamFile->open(streamFile, filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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else
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vgmstream->ch[i].streamfile = streamFile->open(streamFile, filename,0x1000);
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int i, c;
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off_t coef_header, coef_offset;
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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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for (i = 0; i < vgmstream->channels; i++) {
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for (c = 0; c < 16; c++) {
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coef_header = info_offset + 0x1C + read_32bit(info_offset + 0x24 + (i*0x08), streamFile);
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coef_offset = read_32bit(coef_header + 0x0c, streamFile) + coef_header;
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vgmstream->ch[i].adpcm_coef[c] = read_16bit(coef_offset + c*2, streamFile);
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}
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}
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}
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break;
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default: /* 0x03: IMA? */
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goto fail;
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}
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if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
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goto fail;
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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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close_vgmstream(vgmstream);
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return NULL;
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}
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