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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/* UTK - from Maxis games [The Sims Online (PC), SimCity 4 (PC)] */
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VGMSTREAM * init_vgmstream_utk(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, "utk"))
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x55544D30) /* "UTM0" */
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goto fail;
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if (read_32bitLE(0x08,streamFile) != 0x14) /* header size? */
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goto fail;
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if (read_16bitLE(0x0c,streamFile) != 0x01) /* codec */
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goto fail;
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/* 0x14: avg bitrate, 0x18: PCM block size, 0x1a: PCM bits, 0x1c: extra size? */
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channel_count = read_16bitLE(0x0e,streamFile);
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if (channel_count > 1) goto fail; /* unknown */
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loop_flag = 0;
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start_offset = 0x20;
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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_UTK;
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vgmstream->sample_rate = read_32bitLE(0x10, streamFile);
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vgmstream->num_samples = read_32bitLE(0x04, streamFile) / 2; /* PCM size */
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vgmstream->coding_type = coding_EA_MT;
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vgmstream->layout_type = layout_none;
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vgmstream->codec_data = init_ea_mt(vgmstream->channels, 0);
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if (!vgmstream->codec_data) goto fail;
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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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