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46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
#ifndef _EA_SCHL_STREAMFILE_H_
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#define _EA_SCHL_STREAMFILE_H_
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#include "deblock_streamfile.h"
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static void block_callback(STREAMFILE *sf, deblock_io_data *data) {
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uint32_t block_type, block_size;
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block_type = read_u32be(data->physical_offset + 0x00, sf);
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block_size = read_u32le(data->physical_offset + 0x04, sf); /* always LE, hopefully */
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if (block_type == 0x5343456C) /* "SCEl" end block */
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return;
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data->block_size = block_size;
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if (block_type != 0x5343446C) /* skip non-"SCDl" blocks */
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return;
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switch(data->cfg.codec) {
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case 0x1b: /* ATRAC3plus */
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data->data_size = read_32bitLE(data->physical_offset + 0x0c + 0x04 * data->cfg.channels, sf);
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data->skip_size = 0x0c + 0x04 * data->cfg.channels + 0x04;
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break;
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default:
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break;
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}
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}
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/* Deblocks SCHl streams */
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static STREAMFILE* setup_schl_streamfile(STREAMFILE *sf, int codec, int channels, off_t stream_offset, size_t logical_size) {
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STREAMFILE *new_sf = NULL;
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deblock_config_t cfg = {0};
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cfg.stream_start = stream_offset;
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cfg.logical_size = logical_size;
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cfg.codec = codec;
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cfg.channels = channels; //todo chunk size?
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cfg.block_callback = block_callback;
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new_sf = open_wrap_streamfile(sf);
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new_sf = open_io_deblock_streamfile_f(new_sf, &cfg);
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//new_sf = open_buffer_streamfile(new_sf, 0);
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return new_sf;
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}
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#endif /* _EA_SCHL_STREAMFILE_H_ */
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