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50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* NWAV - from Chunsoft games [Fuurai no Shiren Gaiden: Onnakenshi Asuka Kenzan! (PC)] */
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VGMSTREAM* init_vgmstream_nwav(STREAMFILE* sf) {
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off_t start_offset;
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/* checks */
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if (!is_id32be(0x00,sf, "NWAV"))
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goto fail;
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/* .nwav: header id (no filenames in bigfiles) */
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if (!check_extensions(sf,"nwav,") )
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goto fail;
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{
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ogg_vorbis_meta_info_t ovmi = {0};
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int channels;
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/* 0x04: version? */
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/* 0x08: crc? */
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ovmi.stream_size = read_u32le(0x0c, sf);
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ovmi.loop_end = read_u32le(0x10, sf); /* num_samples, actually */
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/* 0x14: sample rate */
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/* 0x18: bps? (16) */
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channels = read_u8(0x19, sf);
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start_offset = read_u16le(0x1a, sf);
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ovmi.loop_flag = read_u16le(0x1c, sf) != 0; /* loop count? -1 = loops */
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/* 0x1e: always 2? */
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/* 0x20: always 1? */
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ovmi.loop_start = read_u32le(0x24, sf);
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/* 0x28: always 1? */
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/* 0x2a: always 1? */
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/* 0x2c: always null? */
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ovmi.meta_type = meta_NWAV;
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/* values are in resulting bytes */
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ovmi.loop_start = ovmi.loop_start / sizeof(int16_t) / channels;
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ovmi.loop_end = ovmi.loop_end / sizeof(int16_t) / channels;
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return init_vgmstream_ogg_vorbis_config(sf, start_offset, &ovmi);
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}
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fail:
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return NULL;
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}
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