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56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* .gin - EA engine sounds [Need for Speed: Most Wanted (multi)] */
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VGMSTREAM * init_vgmstream_gin(STREAMFILE *sf) {
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VGMSTREAM *vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channel_count, sample_rate, num_samples;
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if (!check_extensions(sf, "gin"))
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goto fail;
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/* checks */
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if (!is_id32be(0x00, sf, "Gnsu") && /* original */
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!is_id32be(0x00, sf, "Octn")) /* later (2013+) games, looks same as "Gnsu" */
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goto fail;
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/* contains mapped values for engine RPM sounds but we'll just play the whole thing */
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/* 0x04: size? "20\00\00"? */
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/* 0x08/0c: min/max float RPM? */
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/* 0x10: RPM up? (pitch/frequency) table size */
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/* 0x14: RPM ??? table size */
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/* always LE even on X360/PS3 */
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num_samples = read_u32le(0x18, sf);
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sample_rate = read_u32le(0x1c, sf);
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start_offset = 0x20 +
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(read_u32le(0x10, sf) + 1) * 0x04 +
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(read_u32le(0x14, sf) + 1) * 0x04;
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channel_count = 1;
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loop_flag = 0;
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count, loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->meta_type = meta_GIN;
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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = num_samples;
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vgmstream->coding_type = coding_EA_XAS_V0;
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vgmstream->layout_type = layout_none;
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/* calculate size for TMX */
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vgmstream->stream_size = (align_size_to_block(num_samples, 32) / 32) * 0x13;
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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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