103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
#include "meta.h"
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#include "../util.h"
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/* HSF - Found in Lowrider (PS2) - STREAM.BIN archive */
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VGMSTREAM * init_vgmstream_ps2_hsf(STREAMFILE *streamFile)
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{
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VGMSTREAM * vgmstream = NULL;
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char filename[PATH_LIMIT];
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off_t start_offset;
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int loop_flag = 0;
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int channel_count;
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size_t fileLength;
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size_t frequencyFlag;
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#if 0
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off_t readOffset = 0;
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uint8_t testBuffer[0x10];
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off_t loopEndOffset;
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#endif
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/* check extension, case insensitive */
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streamFile->get_name(streamFile,filename,sizeof(filename));
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if (strcasecmp("hsf",filename_extension(filename))) goto fail;
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/* check header */
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if (read_32bitBE(0x00,streamFile) != 0x48534600) // "HSF"
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goto fail;
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loop_flag = 0;
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channel_count = 2;
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fileLength = get_streamfile_size(streamFile);
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frequencyFlag = read_32bitLE(0x08, streamFile);
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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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/* fill in the vital statistics */
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start_offset = 0x10;
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vgmstream->channels = channel_count;
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if (frequencyFlag == 0x0EB3)
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{
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vgmstream->sample_rate = 44100;
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}
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else if (frequencyFlag == 0x1000)
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{
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vgmstream->sample_rate = 48000;
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}
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vgmstream->coding_type = coding_PSX;
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vgmstream->num_samples = ((fileLength - 0x10) / 16 * 28) / vgmstream->channels;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = read_32bitLE(0x0C, streamFile);
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vgmstream->meta_type = meta_PS2_HSF;
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if (vgmstream->loop_flag)
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{
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vgmstream->loop_start_sample = 0;
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vgmstream->loop_end_sample = vgmstream->num_samples;
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#if 0
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readOffset = fileLength - 0x10;
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do
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{
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readOffset -=(off_t)read_streamfile(testBuffer, readOffset, 0x10, streamFile);
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if (testBuffer[1] == 0x07)
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{
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loopEndOffset = readOffset + 0x10;
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vgmstream->loop_end_sample = ((loopEndOffset - 0x10) / 16 * 28) / vgmstream->channels;
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break;
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}
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} while (readOffset > 0);
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#endif
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}
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/* open the file for reading */
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{
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int i;
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STREAMFILE * file;
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file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!file) goto fail;
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for (i=0;i<channel_count;i++) {
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vgmstream->ch[i].streamfile = file;
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vgmstream->ch[i].channel_start_offset=
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vgmstream->ch[i].offset=start_offset+
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vgmstream->interleave_block_size*i;
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}
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}
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return vgmstream;
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/* clean up anything we may have opened */
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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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