mirror of
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53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
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#include "meta.h"
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#include "../coding/coding.h"
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/* .IMA - Blitz Games early games [Lilo & Stitch: Trouble in Paradise (PC)] */
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VGMSTREAM * init_vgmstream_ima(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, num_samples, sample_rate;
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/* checks */
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if (!check_extensions(streamFile, "ima"))
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x02000000) /* version? */
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goto fail;
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if (read_32bitBE(0x04,streamFile) != 0)
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goto fail;
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num_samples = read_32bitLE(0x08, streamFile);
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channel_count = read_32bitLE(0x0c,streamFile);
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sample_rate = read_32bitLE(0x10, streamFile);
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loop_flag = 0;
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start_offset = 0x14;
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if (channel_count > 1) /* unknown interleave */
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goto fail;
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if (num_samples != ima_bytes_to_samples(get_streamfile_size(streamFile) - start_offset, channel_count))
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goto fail;
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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_IMA;
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vgmstream->sample_rate = sample_rate;
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vgmstream->coding_type = coding_BLITZ_IMA;
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vgmstream->layout_type = layout_none;
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vgmstream->num_samples = num_samples;
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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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