mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-22 11:25:53 +01:00
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* GCub - found in Sega Soccer Slam (GC) */
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VGMSTREAM* init_vgmstream_gcub(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t start_offset;
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int channels, loop_flag, sample_rate;
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size_t data_size;
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/* checks */
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/* .wav: extension found in bigfile
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* .gcub: header id */
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if (!check_extensions(sf, "wav,lwav,gcub"))
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goto fail;
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if (!is_id32be(0x00,sf, "GCub"))
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goto fail;
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loop_flag = 0;
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channels = read_u32be(0x04,sf);
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sample_rate = read_u32be(0x08,sf);
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data_size = read_u32be(0x0c,sf);
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if (is_id32be(0x60,sf, "GCxx")) /* seen in sfx */
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start_offset = 0x88;
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else
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start_offset = 0x60;
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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_GCUB;
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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->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x8000;
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dsp_read_coefs_be(vgmstream, sf, 0x10, 0x20);
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/* 0x50: initial ps for ch1/2 (16b) */
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/* 0x54: hist? (always blank) */
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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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