59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* RAS_ - from Donkey Kong Country Returns (Wii) */
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VGMSTREAM * init_vgmstream_wii_ras(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channel_count;
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/* checks */
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if (!check_extensions(streamFile, "ras"))
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x5241535F) /* "RAS_" */
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goto fail;
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loop_flag = 0;
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if (read_32bitBE(0x30,streamFile) != 0 ||
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read_32bitBE(0x34,streamFile) != 0 ||
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read_32bitBE(0x38,streamFile) != 0 ||
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read_32bitBE(0x3C,streamFile) != 0) {
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loop_flag = 1;
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}
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channel_count = 2;
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start_offset = read_32bitBE(0x18,streamFile);
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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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vgmstream->sample_rate = read_32bitBE(0x14,streamFile);
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vgmstream->meta_type = meta_WII_RAS;
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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 = read_32bitBE(0x20,streamFile);
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vgmstream->num_samples = read_32bitBE(0x1c,streamFile)/channel_count/8*14;
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if (loop_flag) { /* loop is block + samples into block */
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vgmstream->loop_start_sample = read_32bitBE(0x30,streamFile)*vgmstream->interleave_block_size/8*14 +
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read_32bitBE(0x34,streamFile);
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vgmstream->loop_end_sample = read_32bitBE(0x38,streamFile)*vgmstream->interleave_block_size/8*14 +
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read_32bitBE(0x3C,streamFile);
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}
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dsp_read_coefs_be(vgmstream,streamFile,0x40,0x30);
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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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return NULL;
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}
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