mirror of
https://github.com/vgmstream/vgmstream.git
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52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* sadf - from Procyon Studio audio driver games [Xenoblade Chronicles 2 (Switch)] (sfx) */
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VGMSTREAM* init_vgmstream_sadf(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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int channel_count, loop_flag;
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off_t start_offset;
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/* checks */
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/* .sad: assumed (from older sadX formats)
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* .nop: assumed (from streamed files)
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* (extensionless): name in .xsp bigfiles */
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if (!check_extensions(sf, "sad,nop,"))
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goto fail;
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if (read_32bitBE(0x00, sf) != 0x73616466) /* "sadf" */
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goto fail;
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if (read_32bitBE(0x08, sf) != 0x6470636D) /* "dpcm" ("opus" is used too, see opus.c, "ipcm" supposedly too) */
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goto fail;
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channel_count = read_8bit(0x18, sf);
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loop_flag = read_8bit(0x19, sf);
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start_offset = read_32bitLE(0x1C, sf);
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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->num_samples = read_32bitLE(0x28, sf);
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vgmstream->sample_rate = read_32bitLE(0x24, sf);
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if (loop_flag) {
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vgmstream->loop_start_sample = read_32bitLE(0x2c, sf);
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vgmstream->loop_end_sample = read_32bitLE(0x30, sf);
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}
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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 = channel_count == 1 ? 0x8 : read_32bitLE(0x20, sf) / channel_count;
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vgmstream->meta_type = meta_SADF;
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dsp_read_coefs_le(vgmstream, sf, 0x80, 0x80);
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if (!vgmstream_open_stream(vgmstream, sf, 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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