45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* IDSP - from Inevitable Entertainment games [Defender (GC)] */
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VGMSTREAM * init_vgmstream_idsp_ie(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,"idsp") )
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x49445350) /* "IDSP" */
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goto fail;
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loop_flag = 0;
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channel_count = read_32bitBE(0x0C,streamFile);
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if (channel_count > 2) goto fail;
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start_offset = 0x70;
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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->meta_type = meta_IDSP_IE;
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vgmstream->sample_rate = read_32bitBE(0x08,streamFile);
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->num_samples = dsp_bytes_to_samples(read_32bitBE(0x04,streamFile), channel_count);
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = read_32bitBE(0x10,streamFile);
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dsp_read_coefs_be(vgmstream,streamFile,0x14,0x2E);
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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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fail:
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close_vgmstream(vgmstream);
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return NULL;
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}
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