mirror of
https://github.com/vgmstream/vgmstream.git
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56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
#include "meta.h"
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#include "../layout/layout.h"
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#include "../coding/coding.h"
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#include "../util.h"
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/* .IAB - from Runtime(?) games [Ueki no Housoku - Taosu ze Robert Juudan!! (PS2), RPG Maker 3 (PS2)] */
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VGMSTREAM * init_vgmstream_ps2_iab(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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/* checks */
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if (!check_extensions(streamFile,"iab"))
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x10000000)
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goto fail;
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if (read_32bitLE(0x1C,streamFile) != get_streamfile_size(streamFile))
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goto fail;
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loop_flag = 0;
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channel_count = 2;
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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(0x04,streamFile);
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vgmstream->meta_type = meta_PS2_IAB;
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vgmstream->coding_type = coding_PSX;
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vgmstream->layout_type = layout_blocked_ps2_iab;
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//vgmstream->interleave_block_size = read_32bitLE(0x0C, streamFile); /* unneeded */
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if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
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goto fail;
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/* calc num_samples */
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{
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vgmstream->next_block_offset = start_offset;
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do {
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block_update(vgmstream->next_block_offset, vgmstream);
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vgmstream->num_samples += ps_bytes_to_samples(vgmstream->current_block_size, 1);
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}
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while (vgmstream->next_block_offset < get_streamfile_size(streamFile));
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block_update(start_offset, vgmstream);
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}
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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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