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https://github.com/vgmstream/vgmstream.git
synced 2025-01-19 00:04:04 +01:00
cleanup
This commit is contained in:
bnnm
parent
5fdb71dbb1
commit
93e680910d
@ -28,10 +28,10 @@ VGMSTREAM* init_vgmstream_bfstm(STREAMFILE* sf) {
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/* checks */
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if (!check_extensions(sf,"bfstm"))
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goto fail;
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if (!is_id32be(0x00,sf, "FSTM"))
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goto fail;
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if (!check_extensions(sf,"bfstm"))
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goto fail;
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/* 0x06(2): header size (0x40)
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* 0x08: version (0x00000400)
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* 0x0c: file size */
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207
src/meta/brstm.c
207
src/meta/brstm.c
@ -1,168 +1,123 @@
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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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VGMSTREAM * init_vgmstream_brstm(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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char filename[PATH_LIMIT];
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VGMSTREAM* init_vgmstream_brstm(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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uint32_t start_offset, head_size, head_offset, info_offset;
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int channels, loop_flag, codec, version;
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coding_t coding_type;
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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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/* Certain Super Paper Mario tracks have a 44.1KHz sample rate in the
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* header, but they should be played at 22.05KHz. We will make this
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* correction if we see a file with a .brstmspm extension. */
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int spm_flag = 0;
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/* Trauma Center Second Opinion has an odd, semi-corrupt header */
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int atlus_shrunken_head = 0;
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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("brstm",filename_extension(filename))) {
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if (strcasecmp("brstmspm",filename_extension(filename))) goto fail;
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else spm_flag = 1;
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}
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/* check header */
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if ((uint32_t)read_32bitBE(0,streamFile)!=0x5253544D) /* "RSTM" */
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goto fail;
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if ((uint32_t)read_32bitBE(4,streamFile)!=0xFEFF0100)
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{
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if ((uint32_t)read_32bitBE(4,streamFile)!=0xFEFF0001)
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goto fail;
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else
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atlus_shrunken_head = 1;
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}
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/* get head offset, check */
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head_offset = read_32bitBE(0x10,streamFile);
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if (atlus_shrunken_head)
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{
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/* the HEAD chunk is where we would expect to find the offset of that
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* chunk... */
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if ((uint32_t)head_offset!=0x48454144 || read_32bitBE(0x14,streamFile) != 8)
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/* checks */
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if (!is_id32be(0x00,sf, "RSTM"))
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goto fail;
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head_offset = -8; /* most of the normal Nintendo RSTM offsets work
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with this assumption */
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}
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else
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{
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if ((uint32_t)read_32bitBE(head_offset,streamFile)!=0x48454144) /* "HEAD" */
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/* .brstm: standard
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* .brstmspm: fake hack */
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if (!check_extensions(sf,"brstm,brstmspm"))
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goto fail;
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if (read_u16be(0x04, sf) != 0xFEFF) /* BE BOM for all Wii games */
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goto fail;
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version = read_u16be(0x06, sf); /* 0.1 (Trauma Center), 1.0 (all others) */
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if (read_u32be(0x08, sf) != get_streamfile_size(sf))
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goto fail;
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head_size = read_u16be(0x0c, sf);
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/* 0x0e: chunk count */
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if (version == 0x0001) {
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/* smaller simpler header found in some (beta?) files */
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head_offset = head_size;
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info_offset = head_offset + 0x08;
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}
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else {
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/* chunk table: offset + sixe x N chunks */
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head_offset = read_u32be(0x10,sf); /* in practice same as head_size */
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info_offset = head_offset + 0x20;
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/* HEAD starts with a sub-chunk table (info, )*/
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}
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/* check type details */
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codec_number = read_8bit(head_offset+0x20,streamFile);
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loop_flag = read_8bit(head_offset+0x21,streamFile);
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channel_count = read_8bit(head_offset+0x22,streamFile);
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if (!is_id32be(head_offset,sf, "HEAD"))
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goto fail;
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/* 0x04: chunk size (set to 0x8 in v0.1) */
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switch (codec_number) {
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codec = read_u8(info_offset+0x00,sf);
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loop_flag = read_u8(info_offset+0x01,sf);
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channels = read_u8(info_offset+0x02,sf);
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start_offset = read_u32be(info_offset+0x10,sf); /* inside DATA chunk */
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channels, loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->meta_type = meta_RSTM;
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vgmstream->sample_rate = read_u16be(info_offset+0x04,sf);
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vgmstream->loop_start_sample = read_s32be(info_offset+0x08,sf);
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vgmstream->num_samples = read_s32be(info_offset+0x0c,sf);
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vgmstream->loop_end_sample = vgmstream->num_samples;
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vgmstream->interleave_block_size = read_u32be(info_offset+0x18,sf);
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vgmstream->interleave_last_block_size = read_u32be(info_offset+0x28,sf);
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/* many Super Paper Mario tracks have a 44.1KHz sample rate in the header,
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* but they should be played at 22.05KHz; detect with fake extension */
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if (vgmstream->sample_rate == 44100 && check_extensions(sf, "brstmspm")) //TODO remove
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vgmstream->sample_rate = 22050;
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vgmstream->layout_type = (channels == 1) ? layout_none : layout_interleave;
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switch(codec) {
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case 0:
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coding_type = coding_PCM8;
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vgmstream->coding_type = coding_PCM8;
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break;
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case 1:
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coding_type = coding_PCM16BE;
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vgmstream->coding_type = coding_PCM16BE;
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break;
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case 2:
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coding_type = coding_NGC_DSP;
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vgmstream->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_32bitBE(head_offset+0x2c,streamFile);
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vgmstream->sample_rate = (uint16_t)read_16bitBE(head_offset+0x24,streamFile);
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/* channels and loop flag are set by allocate_vgmstream */
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vgmstream->loop_start_sample = read_32bitBE(head_offset+0x28,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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vgmstream->layout_type = (channel_count == 1) ? layout_none : layout_interleave;
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vgmstream->meta_type = meta_RSTM;
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if (atlus_shrunken_head)
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vgmstream->meta_type = meta_RSTM_shrunken;
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if (spm_flag&& vgmstream->sample_rate == 44100) {
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vgmstream->meta_type = meta_RSTM_SPM;
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vgmstream->sample_rate = 22050;
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}
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vgmstream->interleave_block_size = read_32bitBE(head_offset+0x38,streamFile);
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vgmstream->interleave_last_block_size = read_32bitBE(head_offset+0x48,streamFile);
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// TODO read hist
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if (vgmstream->coding_type == coding_NGC_DSP) {
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off_t coef_offset;
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off_t head_part3_offset;
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off_t adpcm_header_offset;
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int i,j;
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int coef_spacing;
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int i, ch;
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if (atlus_shrunken_head)
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{
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coef_offset = 0x50;
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coef_spacing = 0x30;
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if (version == 0x0001) {
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/* standard */
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VGM_LOG("ss=%x\n", head_offset + 0x38);
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dsp_read_coefs_be(vgmstream, sf, head_offset + 0x38, 0x30);
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}
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else {
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uint32_t head_part3_offset = read_32bitBE(head_offset + 0x1c, sf);
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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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vgmstream->ch[j].adpcm_coef[i] = read_16bitBE(head_offset + coef_offset + j * coef_spacing + i * 2,streamFile);
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}
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}
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}
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else
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{
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head_part3_offset = read_32bitBE(head_offset + 0x1c, streamFile);
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for (j = 0; j < vgmstream->channels; j++) {
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/* read from offset table */
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for (ch = 0; ch < vgmstream->channels; ch++) {
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adpcm_header_offset = head_offset + 0x08
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+ head_part3_offset + 0x04 /* skip over HEAD part 3 */
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+ j * 0x08 /* skip to channel's ADPCM offset table */
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+ ch * 0x08 /* skip to channel's ADPCM offset table */
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+ 0x04; /* ADPCM header offset field */
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coef_offset = head_offset + 0x08
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+ read_32bitBE(adpcm_header_offset, streamFile)
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+ read_u32be(adpcm_header_offset, sf)
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+ 0x08; /* coeffs field */
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for (i = 0; i < 16; i++) {
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vgmstream->ch[j].adpcm_coef[i] = read_16bitBE(coef_offset + i * 2, streamFile);
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vgmstream->ch[ch].adpcm_coef[i] = read_s16be(coef_offset + i * 2, sf);
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}
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}
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}
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}
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start_offset = read_32bitBE(head_offset+0x30,streamFile);
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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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vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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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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if (!vgmstream_open_stream(vgmstream, sf, 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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