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51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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#include "../util.h"
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/* .ADX - from Capcom games [Resident Evil: Revelations (Switch), Monster Hunter XX (Switch)] */
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VGMSTREAM * init_vgmstream_adpcm_capcom(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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/* .mca: Monster Hunter Generations Ultimate / XX */
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if (!check_extensions(streamFile,"adpcm,mca"))
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x02000000)
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goto fail;
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channel_count = read_16bitLE(0x04, streamFile);
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if (channel_count > 2) goto fail; /* header size seems fixed for mono/stereo */
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/* 0x08: channel size */
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/* 0x0c-14: some config/id? (may be shared between files) */
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loop_flag = read_16bitLE(0x68, streamFile);
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start_offset = 0xd8; /* also fixed for mono/stereo */
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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_ADPCM_CAPCOM;
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vgmstream->sample_rate = read_32bitLE(0x64,streamFile); /* from first headerm repeated at +0x60 */
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vgmstream->num_samples = read_32bitLE(0x60, streamFile);
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vgmstream->loop_start_sample = read_32bitLE(0x6c, streamFile);
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vgmstream->loop_end_sample = read_32bitLE(0x70, streamFile) + 1;
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = read_16bitLE(0x06, streamFile);
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dsp_read_coefs_le(vgmstream,streamFile, 0x18, 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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