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42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
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#ifndef _UBI_SB_GARBAGE_STREAMFILE_H_
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#define _UBI_SB_GARBAGE_STREAMFILE_H_
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#include "deblock_streamfile.h"
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/* In typical Ubisoft-insane fashion, some SC:PT PS2 (not GC) streams have mixed garbage (after 0x6B00 bytes has 0x4240).
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* No apparent flag but seems to be related to stream sizes or samples (only files of +10MB, but not all).
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*
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* Since garbage is consistent between all files we can detect by checking expected crap. stream_sizes do take
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* into account extra crap, while layers don't (offset field assumes no crap), so we use a separate de-garbage
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* streamfile to simulate. */
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static int is_garbage_stream(STREAMFILE* sf) {
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/* must test from file's beginning, not stream's */
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return get_streamfile_size(sf) >= 0x00800000 &&
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read_u32be(0x6B00, sf) == 0x6047BF7F &&
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read_u32be(0x6B04, sf) == 0x94FACC01;
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}
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//static size_t get_garbage_stream_size(off_t offset, size_t size) {
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// /* readjust size removing all possible garbage taking into account offset */
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//}
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static void block_callback(STREAMFILE* sf, deblock_io_data* data) {
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data->block_size = 0x6b00 + 0x4240;
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data->data_size = 0x6b00;
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}
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static STREAMFILE* setup_ubi_sb_garbage_streamfile_f(STREAMFILE* new_sf) {
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//STREAMFILE *new_sf = NULL;
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deblock_config_t cfg = {0};
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cfg.stream_start = 0;
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cfg.block_callback = block_callback;
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/* setup sf */
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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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return new_sf;
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}
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#endif /* _UBI_SB_GARBAGE_STREAMFILE_H_ */
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