mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-14 07:32:52 +01:00
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* raw PCM file assumed by extension [PaRappa The Rapper 2 (PS2)? , Amplitude (PS2)?] */
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VGMSTREAM * init_vgmstream_ps2_int(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset;
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int channel_count;
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/* checks */
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if (!check_extensions(streamFile, "int,wp2"))
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goto fail;
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if (check_extensions(streamFile, "int"))
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channel_count = 2;
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else
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channel_count = 4;
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/* try to skip known .int (a horrible idea this parser exists) */
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{
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/* ignore A2M .int */
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if (read_32bitBE(0x00,streamFile) == 0x41324D00) /* "A2M\0" */
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goto fail;
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/* ignore EXST .int */
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if (read_32bitBE(0x10,streamFile) == 0x0C020000 &&
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read_32bitBE(0x20,streamFile) == 0x0C020000 &&
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read_32bitBE(0x30,streamFile) == 0x0C020000 &&
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read_32bitBE(0x40,streamFile) == 0x0C020000) /* check a few empty PS-ADPCM frames */
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goto fail;
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}
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start_offset = 0x00;
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count,0);
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if (!vgmstream) goto fail;
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vgmstream->sample_rate = 48000;
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vgmstream->meta_type = meta_PS2_RAW;
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vgmstream->num_samples = pcm_bytes_to_samples(get_streamfile_size(streamFile), vgmstream->channels, 16);
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vgmstream->coding_type = coding_PCM16LE;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x200;
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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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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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