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57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* RSTM - from Rockstar games [Midnight Club 3, Bully - Canis Canim Edit (PS2)] */
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VGMSTREAM* init_vgmstream_rstm_rockstar(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t stream_offset, loop_start, loop_end;
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size_t stream_size;
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int sample_rate, channels, loop_flag;
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/* checks */
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if (!is_id32be(0x00, sf, "RSTM"))
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return NULL;
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/* .rsm: in filelist
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* .rstm: header id */
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if (!check_extensions(sf, "rsm,rstm"))
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return NULL;
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sample_rate = read_s32le(0x08, sf);
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channels = read_s32le(0x0C, sf);
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/* 0x10-0x18 - empty padding(?) */
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stream_size = read_s32le(0x18, sf);
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loop_start = read_s32le(0x1C, sf);
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loop_end = read_s32le(0x20, sf);
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/* other loop start/ends after here? (uncommon) */
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stream_offset = 0x800;
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//loop_flag = (read_s32le(0x24,sf) > 0);
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loop_flag = loop_end != stream_size;
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channels, loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->meta_type = meta_RSTM_ROCKSTAR;
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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = ps_bytes_to_samples(stream_size, channels);
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vgmstream->loop_start_sample = ps_bytes_to_samples(loop_start, channels);
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vgmstream->loop_end_sample = ps_bytes_to_samples(loop_end, channels);
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vgmstream->coding_type = coding_PSX;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x10;
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/* open the file for reading */
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if ( !vgmstream_open_stream(vgmstream, sf, stream_offset) )
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goto fail;
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return vgmstream;
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fail:
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close_vgmstream(vgmstream);
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return NULL;
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}
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