2008-05-24 17:11:32 +02:00
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#include "meta.h"
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2008-05-24 17:44:09 +02:00
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#include "../layout/layout.h"
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2008-05-24 17:11:32 +02:00
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#include "../util.h"
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/* XWAV
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XWAV use the common RIFF/WAVE format with Codec ID = 0x0069
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It has been renamed to xwav to avoid vgmstream to handle all RIFF/WAV format
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known extensions : XWAV
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2008-05-24 - Fastelbja : First version ...
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*/
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VGMSTREAM * init_vgmstream_xbox_xwav(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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char filename[260];
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int loop_flag=0;
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int channel_count;
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off_t start_offset;
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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("xwav",filename_extension(filename))) goto fail;
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/* Check for headers */
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if(!((read_32bitBE(0x00,streamFile)==0x52494646) &&
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(read_32bitBE(0x08,streamFile)==0x57415645) &&
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(read_32bitBE(0x0C,streamFile)==0x666D7420) &&
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(read_16bitLE(0x14,streamFile)==0x0069)))
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goto fail;
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/* No loop on wavm */
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loop_flag = 0;
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/* Always stereo files */
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channel_count=read_16bitLE(0x16,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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vgmstream->channels = channel_count;
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vgmstream->sample_rate = read_32bitLE(0x18,streamFile);
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/* search for "data" */
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start_offset=0x1C;
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do {
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if(read_32bitBE(start_offset,streamFile)==0x64617461)
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break;
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start_offset+=4;
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} while (start_offset<get_streamfile_size(streamFile));
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if(start_offset>=get_streamfile_size(streamFile))
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goto fail;
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start_offset+=4;
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vgmstream->coding_type = coding_XBOX;
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vgmstream->num_samples = read_32bitLE(start_offset,streamFile) / 36 * 64 / vgmstream->channels;
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vgmstream->layout_type = layout_xbox_blocked;
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vgmstream->current_block_size=36*vgmstream->channels;
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vgmstream->current_block_offset=start_offset+4;
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xbox_block_update(start_offset+4,vgmstream);
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vgmstream->meta_type = meta_XBOX_RIFF;
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/* open the file for reading by each channel */
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{
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for (i=0;i<channel_count;i++) {
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vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,36);
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if (!vgmstream->ch[i].streamfile) goto fail;
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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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