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47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
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#include "meta.h"
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/* MC3 - from Paradigm games [Spy Hunter, MX Rider, Terminator 3] */
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VGMSTREAM * init_vgmstream_mc3(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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/* check extension, case insensitive */
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if ( !check_extensions(streamFile,"mc3"))
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x4D504333) /* "MPC3" */
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goto fail;
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if (read_32bitBE(0x04,streamFile) != 0x00011400) /* version? */
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goto fail;
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start_offset = 0x1c;
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loop_flag = 0;
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channel_count = read_32bitLE(0x08, streamFile);
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if (channel_count > 2) goto fail; /* not seen, decoder must be adapted */
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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->coding_type = coding_MC3;
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vgmstream->layout_type = layout_none;
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vgmstream->meta_type = meta_MC3;
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vgmstream->sample_rate = read_32bitLE(0x0c, streamFile);
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vgmstream->num_samples = read_32bitLE(0x10, streamFile) * 10; /* sizes in sub-blocks of 10 samples (without headers) */
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vgmstream->interleave_block_size = (read_32bitLE(0x14, streamFile) * 4 * channel_count) + 4;
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if (read_32bitLE(0x18, streamFile) + start_offset != get_streamfile_size(streamFile))
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goto fail;
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/* open the file for reading */
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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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