62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
#ifndef _XAVS_STREAMFILE_H_
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#define _XAVS_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 chunk_type = read_u32le(data->physical_offset, sf) & 0xFF;
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uint32_t chunk_size = read_u32le(data->physical_offset, sf) >> 8;
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data->skip_size = 0x04;
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switch(chunk_type) {
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/* audio */
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case 0x41:
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case 0x61:
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case 0x62:
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case 0x63:
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data->block_size = 0x04 + chunk_size;
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if (data->cfg.track_number + 1 == (chunk_type & 0x0F)) {
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data->data_size = chunk_size;
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} else {
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data->data_size = 0; /* ignore other subsongs */
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}
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break;
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/* video */
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case 0x56:
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data->block_size = 0x04 + chunk_size;
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data->data_size = 0;
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break;
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/* empty */
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case 0x21: /* related to video */
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case 0x5F: /* "_EOS" */
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data->block_size = 0x04;
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data->data_size = 0;
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break;
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default:
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VGM_LOG("XAVS: unknown type at %lx\n", data->physical_offset);
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data->block_size = 0x04;
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data->data_size = 0;
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break;
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}
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}
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/* Deblocks XAVS video/audio data */
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static STREAMFILE* setup_xavs_streamfile(STREAMFILE *sf, off_t stream_offset, int stream_number) {
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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.track_number = stream_number;
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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 /* _XAVS_STREAMFILE_H_ */
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