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https://github.com/vgmstream/vgmstream.git
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46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
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#include "meta.h"
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/* IMU - found in Alter Echo (PS2) */
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VGMSTREAM * init_vgmstream_ps2_omu(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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/* check extension */
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if ( !check_extensions(streamFile,"omu") )
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goto fail;
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/* check header */
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if (read_32bitBE(0x00,streamFile) != 0x4F4D5520 && /* "OMU " */
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read_32bitBE(0x08,streamFile) != 0x46524D54) /* "FRMT" */
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goto fail;
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loop_flag = 1;
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channel_count = (int)read_8bit(0x14,streamFile);
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start_offset = 0x40;
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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_32bitLE(0x10,streamFile);
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vgmstream->num_samples = (int32_t)(read_32bitLE(0x3C,streamFile)/(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_PS2_OMU;
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/* open the file for reading */
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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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