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49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* .MIC - from KOEI games [Crimson Sea 2 (PS2), Dynasty Tactics 2 (PS2)] */
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VGMSTREAM * init_vgmstream_ps2_mic(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, loop_start, loop_end, sample_rate;
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size_t interleave, block_size;
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/* checks */
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if (!check_extensions(streamFile, "mic"))
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goto fail;
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start_offset = read_32bitLE(0x00,streamFile);
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if (start_offset != 0x800) goto fail;
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sample_rate = read_32bitLE(0x04,streamFile);
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channel_count = read_32bitLE(0x08,streamFile);
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interleave = read_32bitLE(0x0c,streamFile);
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loop_end = read_32bitLE(0x10,streamFile);
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loop_start = read_32bitLE(0x14,streamFile);
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loop_flag = (loop_start != 1);
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block_size = interleave * channel_count;
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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_PS2_MIC;
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vgmstream->sample_rate = sample_rate;
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vgmstream->coding_type = coding_PSX;
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vgmstream->interleave_block_size = interleave;
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vgmstream->layout_type = layout_interleave;
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vgmstream->num_samples = ps_bytes_to_samples(loop_end * block_size, channel_count);
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vgmstream->loop_start_sample = ps_bytes_to_samples(loop_start * block_size, channel_count);
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vgmstream->loop_end_sample = vgmstream->num_samples;
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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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