55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* SPM - Seq-PCM stream Square Sounds Co. games [Lethal Skies Elite Pilot: Team SW (PS2)] */
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VGMSTREAM* init_vgmstream_spm(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channels;
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size_t data_size;
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int32_t loop_start, loop_end;
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/* checks */
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/* .spm: extension from debug strings */
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if (!check_extensions(sf, "spm"))
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goto fail;
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if (!is_id32be(0x00,sf,"SPM\0"))
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goto fail;
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data_size = read_u32le(0x04,sf);
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loop_start = read_s32le(0x08,sf);
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loop_end = read_s32le(0x0c,sf);
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/* 0x10: volume? */
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/* rest: null */
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start_offset = 0x20;
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channels = 2;
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loop_flag = 1;
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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_SPM;
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vgmstream->sample_rate = 48000;
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vgmstream->num_samples = pcm16_bytes_to_samples(data_size - start_offset, channels);
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vgmstream->loop_start_sample = loop_start;
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vgmstream->loop_end_sample = loop_end;
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vgmstream->coding_type = coding_PCM16LE;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x02;
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if (!vgmstream_open_stream(vgmstream, sf, start_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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