41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
#ifndef _VSV_STREAMFILE_H_
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#define _VSV_STREAMFILE_H_
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#include "../streamfile.h"
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typedef struct {
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off_t null_offset;
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} vsv_io_data;
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static size_t vsv_io_read(STREAMFILE *sf, uint8_t *dest, off_t offset, size_t length, vsv_io_data *data) {
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int i;
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size_t bytes = read_streamfile(dest, offset, length, sf);
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/* VSVs do start at 0x00, but first line is also the header; must null it to avoid clicks */
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if (offset < data->null_offset) {
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int max = data->null_offset - offset;
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if (max > bytes)
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max = bytes;
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for (i = 0; i < max; i++) {
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dest[i] = 0;
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}
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}
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/* VSV also has last 0x800 block with a PS-ADPCM flag of 0x10 (incorrect), but it's ignored by the decoder */
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return bytes;
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}
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/* cleans VSV data */
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static STREAMFILE* setup_vsv_streamfile(STREAMFILE *sf) {
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STREAMFILE *new_sf = NULL;
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vsv_io_data io_data = {0};
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io_data.null_offset = 0x10;
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new_sf = open_wrap_streamfile(sf);
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new_sf = open_io_streamfile_f(new_sf, &io_data, sizeof(vsv_io_data), vsv_io_read, NULL);
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return new_sf;
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}
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#endif /* _VSV_STREAMFILE_H_ */
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