mirror of
https://github.com/vgmstream/vgmstream.git
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38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
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#include "layout.h"
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#include "../coding/coding.h"
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/* EA style blocks */
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void block_update_ea_wve_au00(off_t block_offset, VGMSTREAM * vgmstream) {
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STREAMFILE* streamFile = vgmstream->ch[0].streamfile;
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int i;
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size_t block_size = 0, interleave;
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size_t file_size = get_streamfile_size(streamFile);
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while (block_offset < file_size) {
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uint32_t block_id = read_32bitBE(block_offset+0x00, streamFile);
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block_size = read_32bitBE(block_offset+0x04, streamFile);
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if (block_id == 0x61753030 || block_id == 0x61753031) { /* "au00/au01" audio block/footer found */
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break;
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}
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/* rest may be "MDEC" video blocks */
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block_offset += block_size;
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}
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/* size adjusted to frame boundaries as blocks have padding */
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interleave = ((block_size - 0x10) / vgmstream->interleave_block_size * vgmstream->interleave_block_size) / vgmstream->channels;
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/* set offsets */
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for (i = 0; i < vgmstream->channels; i++) {
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vgmstream->ch[i].offset = (block_offset + 0x10) + interleave*i;
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}
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vgmstream->current_block_size = interleave;
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vgmstream->current_block_offset = block_offset;
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vgmstream->next_block_offset = block_offset + block_size;
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}
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