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57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* .VOI - from Raw Danger (PS2) */
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VGMSTREAM* init_vgmstream_voi(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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int channels, loop_flag = 0;
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off_t start_offset;
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/* checks */
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if (read_u32le(0x00,sf) != 1 && read_u32le(0x00,sf) != 2)
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return NULL;
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if (!check_extensions(sf, "voi"))
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return NULL;
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/* probably number of samples of all channels */
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if ((read_u32le(0x04,sf) * 2 + 0x800) != get_streamfile_size(sf))
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return NULL;
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channels = read_s32le(0x00,sf);
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loop_flag = 0;
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start_offset = 0x800;
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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->meta_type = meta_VOI;
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vgmstream->num_samples = pcm16_bytes_to_samples(get_streamfile_size(sf) - start_offset, channels);
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vgmstream->coding_type = coding_PCM16LE;
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vgmstream->layout_type = layout_interleave;
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if (read_32bitLE(0x08,sf) == 0) {
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vgmstream->sample_rate = 48000;
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vgmstream->interleave_block_size = 0x200;
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}
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else if (read_32bitLE(0x08,sf) == 1) {
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vgmstream->sample_rate = 24000;
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vgmstream->interleave_block_size = 0x100;
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}
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else {
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goto fail;
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}
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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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