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https://github.com/vgmstream/vgmstream.git
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111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* .WVS - found in Metal Arms - Glitch in the System (Xbox) */
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VGMSTREAM* init_vgmstream_wvs_xbox(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channels, sample_rate;
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size_t data_size;
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/* checks */
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if (!check_extensions(sf,"wvs"))
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goto fail;
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data_size = read_u32le(0x00,sf);
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/* 0x04: float seconds (slightly bigger than max num_samples) */
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sample_rate = read_f32le(0x08,sf);
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if (read_u16le(0x0c,sf) != 0x0069) /* codec */
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goto fail;
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channels = read_s16le(0x0e,sf);
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sample_rate = read_s32le(0x10,sf);
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/* 0x10: sample rate (int) */
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/* 0x14: bitrate */
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/* 0x18: block size / bps */
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/* 0x1c: size? / block samples */
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loop_flag = (channels > 1 && sample_rate >= 44100); /* bgm full loops */
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start_offset = 0x20;
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if (data_size + start_offset != get_streamfile_size(sf))
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goto fail;
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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_WVS;
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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = xbox_ima_bytes_to_samples(data_size, channels);
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vgmstream->loop_start_sample = 0;
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vgmstream->loop_end_sample = vgmstream->num_samples;
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vgmstream->coding_type = coding_XBOX_IMA;
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vgmstream->layout_type = layout_none;
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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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fail:
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close_vgmstream(vgmstream);
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return NULL;
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}
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/* .WVS - found in Metal Arms - Glitch in the System (GC) */
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VGMSTREAM* init_vgmstream_wvs_ngc(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channels, sample_rate, interleave;
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size_t data_size;
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/* checks */
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if (!check_extensions(sf,"wvs"))
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goto fail;
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channels = read_s32be(0x00,sf);
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/* 0x04: float seconds (slightly bigger than max num_samples) */
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sample_rate = read_f32be(0x08,sf);
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interleave = read_u32be(0x0C,sf); /* even in mono */
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/* 0x10: number of interleave blocks */
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data_size = read_s32be(0x14,sf) * channels;
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loop_flag = (channels > 1 && sample_rate >= 44100); /* bgm full loops */
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start_offset = 0x60;
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if (data_size + start_offset != get_streamfile_size(sf))
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goto fail;
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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_WVS;
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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = dsp_bytes_to_samples(data_size, channels);
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vgmstream->loop_start_sample = 0;
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vgmstream->loop_end_sample = vgmstream->num_samples;
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = interleave;
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if (interleave)
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vgmstream->interleave_last_block_size = (data_size % (interleave * channels)) / channels;
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dsp_read_coefs_be(vgmstream, sf, 0x18, 0x20);
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//dsp_read_hist_be(vgmstream, sf, 0x18 + 0x20*channels, 0x04); /* not seen */
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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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fail:
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close_vgmstream(vgmstream);
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return NULL;
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}
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