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44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
#include "meta.h"
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/* IMU - found in Alter Echo (PS2) */
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VGMSTREAM* init_vgmstream_omu(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;
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/* checks */
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if (!is_id32be(0x00,sf, "OMU "))
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return NULL;
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if (!check_extensions(sf,"omu"))
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return NULL;
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if (!is_id32be(0x08,sf, "FRMT"))
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return NULL;
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loop_flag = 1;
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channels = read_u8(0x14,sf);
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start_offset = 0x40;
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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->sample_rate = read_s32le(0x10,sf);
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vgmstream->num_samples = (read_u32le(0x3C,sf) / (vgmstream->channels*2));
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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_PCM16LE;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x200;
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vgmstream->meta_type = meta_OMU;
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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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