34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
#include "layout.h"
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#include "../coding/coding.h"
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/* EA style blocks, one block per channel when stereo */
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void block_update_ea_wve_ad10(off_t block_offset, VGMSTREAM* vgmstream) {
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STREAMFILE* sf = vgmstream->ch[0].streamfile;
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int i;
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size_t channel_size = 0, interleave = 0;
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uint32_t block_id, block_size;
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int flag_be = (vgmstream->codec_config & 0x01);
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uint32_t (*read_u32)(off_t,STREAMFILE*) = flag_be ? read_u32be : read_u32le;
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block_id = read_u32be(block_offset+0x00, sf);
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block_size = read_u32 (block_offset+0x04, sf);
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/* accept "Ad10/Ad11" audio block/footer */
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if (block_id == 0x41643130 || block_id == 0x41643131) {
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channel_size = block_size - 0x08; /* one block per channel */
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interleave = block_size;
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block_size = block_size * vgmstream->channels;
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}
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/* rest could be "MDEC" video blocks with 0 size/samples */
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vgmstream->current_block_size = channel_size;
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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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for (i = 0; i < vgmstream->channels; i++) {
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vgmstream->ch[i].offset = (block_offset + 0x08) + interleave*i;
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}
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}
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