mirror of
https://github.com/vgmstream/vgmstream.git
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104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
#include "meta.h"
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#include "../layout/layout.h"
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#include "../util.h"
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/* THP (Just play audio from .thp movie file)
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by fastelbja */
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VGMSTREAM * init_vgmstream_thp(STREAMFILE *streamFile) {
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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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uint32_t maxAudioSize=0;
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uint32_t numComponents;
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off_t componentTypeOffset;
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off_t componentDataOffset;
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char thpVersion;
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int loop_flag;
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int channel_count=-1;
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int i;
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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("thp",filename_extension(filename)) &&
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strcasecmp("dsp",filename_extension(filename))) goto fail;
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/* check header */
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if (read_32bitBE(0x00,streamFile) != 0x54485000)
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goto fail;
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maxAudioSize = read_32bitBE(0x0C,streamFile);
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thpVersion = read_8bit(0x06,streamFile);
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if(maxAudioSize==0) // no sound
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goto fail;
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loop_flag = 0; // allways unloop
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/* fill in the vital statistics */
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if(thpVersion==0x10) {
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start_offset = read_32bitBE(0x24,streamFile);
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/* No idea what's up with this */
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if (start_offset == 0)
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start_offset = read_32bitBE(0x28,streamFile);
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} else
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start_offset = read_32bitBE(0x28,streamFile);
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// Get info from the first block
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componentTypeOffset = read_32bitBE(0x20,streamFile);
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numComponents = read_32bitBE(componentTypeOffset ,streamFile);
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componentDataOffset=componentTypeOffset+0x14;
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componentTypeOffset+=4;
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for(i=0;i<numComponents;i++) {
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if(read_8bit(componentTypeOffset+i,streamFile)==1) {
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channel_count=read_32bitBE(componentDataOffset,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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vgmstream->channels=channel_count;
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vgmstream->sample_rate=read_32bitBE(componentDataOffset+4,streamFile);
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vgmstream->num_samples=read_32bitBE(componentDataOffset+8,streamFile);
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break;
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} else {
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if(thpVersion==0x10)
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componentDataOffset+=0x0c;
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else
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componentDataOffset+=0x08;
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}
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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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}
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}
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vgmstream->thpNextFrameSize=read_32bitBE(0x18,streamFile);
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thp_block_update(start_offset,vgmstream);
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = layout_thp_blocked;
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vgmstream->meta_type = meta_THP;
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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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