mirror of
https://github.com/vgmstream/vgmstream.git
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58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
#include "meta.h"
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#include "../layout/layout.h"
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#include "../coding/coding.h"
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/* STR - The Bouncer (PS2) */
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VGMSTREAM * init_vgmstream_ps2_strlr(STREAMFILE *streamFile) {
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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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/* .vs: real extension (from .nam container) , .str: partial header id */
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if (!check_extensions(streamFile, "vs,str"))
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goto fail;
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/* check header */
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if (!(read_32bitBE(0x000,streamFile) == 0x5354524C && /* "STRL" */
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read_32bitBE(0x800,streamFile) == 0x53545252) && /* "STRR" */
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read_32bitBE(0x00,streamFile) != 0x5354524D) /* "STRM" */
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goto fail;
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loop_flag = 0;
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channel_count = (read_32bitBE(0x00,streamFile) == 0x5354524D) ? 1 : 2; /* "STRM"=mono (voices) */
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start_offset = 0x00;
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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 = 44100;
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vgmstream->coding_type = coding_PSX;
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vgmstream->layout_type = layout_blocked_ps2_strlr;
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vgmstream->meta_type = meta_PS2_STRLR;
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if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
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goto fail;
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/* calc num_samples */
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{
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vgmstream->next_block_offset = start_offset;
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do {
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block_update_ps2_strlr(vgmstream->next_block_offset,vgmstream);
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vgmstream->num_samples += ps_bytes_to_samples(vgmstream->current_block_size, 1);
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}
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while (vgmstream->next_block_offset < get_streamfile_size(streamFile));
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}
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block_update_ps2_strlr(start_offset, vgmstream);
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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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