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48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* WAF - KID's earlier PC games [ever17 (PC)] (for RLE-compressed WAFs see https://github.com/dsp2003/e17p) */
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VGMSTREAM * init_vgmstream_waf(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channel_count;
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/* checks */
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if (!check_extensions(streamFile, "waf"))
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x57414600) /* "WAF\0" */
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goto fail;
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if (read_32bitLE(0x34,streamFile) + 0x38 != get_streamfile_size(streamFile))
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goto fail;
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channel_count = read_16bitLE(0x06,streamFile);
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loop_flag = 0;
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start_offset = 0x38;
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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_WAF;
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vgmstream->sample_rate = read_32bitLE(0x08, streamFile);
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vgmstream->coding_type = coding_MSADPCM;
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vgmstream->layout_type = layout_none;
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vgmstream->frame_size = read_16bitLE(0x10, streamFile);
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/* 0x04: null?, 0x0c: avg br, 0x12: bps, 0x14: s_p_f, 0x16~34: coefs (a modified RIFF fmt) */
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if (!msadpcm_check_coefs(streamFile, 0x16))
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goto fail;
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vgmstream->num_samples = msadpcm_bytes_to_samples(read_32bitLE(0x34,streamFile), vgmstream->frame_size, channel_count);
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if (!vgmstream_open_stream(vgmstream,streamFile,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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