mirror of
https://github.com/vgmstream/vgmstream.git
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65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* CKD RIFF - Ubisoft audio [Rayman Origins (Wii)] */
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VGMSTREAM * init_vgmstream_ubi_ckd(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset, first_offset = 0xc, chunk_offset;
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size_t chunk_size, data_size;
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int loop_flag, channel_count, interleave;
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/* check extension, case insensitive */
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if (!check_extensions(streamFile,"ckd")) goto fail;
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/* check header */
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if (read_32bitBE(0x0,streamFile) != 0x52494646) /* RIFF */
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goto fail;
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if (read_32bitBE(0x26,streamFile) != 0x6473704C) /* dspL */
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goto fail;
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loop_flag = 0;
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channel_count = read_16bitBE(0x16,streamFile);
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/* find data chunk, in 3 variants */
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if (find_chunk_be(streamFile, 0x64617453,first_offset,0, &chunk_offset,&chunk_size)) { /*"datS"*/
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/* normal interleave */
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start_offset = chunk_offset;
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data_size = chunk_size;
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interleave = 8;
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} else if (find_chunk_be(streamFile, 0x6461744C,first_offset,0, &chunk_offset,&chunk_size)) { /*"datL"*/
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/* mono or full interleave (with a "datR" after the "datL", no check as we can just pretend it exists) */
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start_offset = chunk_offset;
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data_size = chunk_size * channel_count;
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interleave = (4+4) + chunk_size; /* don't forget to skip the "datR"+size chunk */
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} else {
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goto fail;
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}
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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->sample_rate = read_32bitBE(0x18,streamFile);
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vgmstream->num_samples = dsp_bytes_to_samples(data_size, channel_count);
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = channel_count==1 ? layout_none : layout_interleave;
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vgmstream->interleave_block_size = interleave;
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vgmstream->meta_type = meta_UBI_CKD;
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dsp_read_coefs_be(vgmstream,streamFile, 0x4A, (4+4)+0x60);
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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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