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44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
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#include "meta.h"
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#include "../coding/coding.h"
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/* WAV2 - from Infrogrames North America games [Slave Zero (PC) (PS2)] */
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VGMSTREAM * init_vgmstream_wv2(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset;
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size_t data_size;
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int loop_flag, channel_count;
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/* checks */
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if ( !check_extensions(streamFile,"wv2") )
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x57415632) /* "WAV2" */
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goto fail;
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start_offset = 0x1c;
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data_size = get_streamfile_size(streamFile) - start_offset;
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channel_count = read_8bit(0x0c,streamFile);
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loop_flag = 0;
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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_WV2;
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vgmstream->sample_rate = read_32bitLE(0x10,streamFile);
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vgmstream->num_samples = ima_bytes_to_samples(data_size,channel_count); /* also 0x18 */
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vgmstream->coding_type = coding_DVI_IMA_int;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0xFA;
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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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