42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* ALP - from LEGO Racers (PC) */
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VGMSTREAM * init_vgmstream_tun(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,"tun") )
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x414C5020) /* "ALP " */
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goto fail;
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channel_count = 2; /* probably at 0x0F */
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loop_flag = 0;
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start_offset = 0x10;
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/* also "ADPCM" at 0x08 */
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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->channels = channel_count;
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vgmstream->sample_rate = 22050;
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vgmstream->num_samples = ima_bytes_to_samples(get_streamfile_size(streamFile) - 0x10, channel_count);
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vgmstream->coding_type = coding_ALP_IMA;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x01;
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vgmstream->meta_type = meta_TUN;
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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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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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