mirror of
https://github.com/vgmstream/vgmstream.git
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64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
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#include "rsf.h"
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#include "../util.h"
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#include "../coding/g721_decoder.h"
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/* .rsf - from Metroid Prime */
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VGMSTREAM * init_vgmstream_rsf(const char * const filename) {
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VGMSTREAM * vgmstream = NULL;
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STREAMFILE * infile = NULL;
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size_t file_size;
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/* check extension, case insensitive */
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/* this is all we have to go on, rsf is completely headerless */
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if (strcasecmp("rsf",filename_extension(filename))) goto fail;
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/* try to open the file so we can count the filesize */
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infile = open_streamfile(filename);
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if (!infile) goto fail;
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file_size = get_streamfile_size(infile);
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close_streamfile(infile);
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infile = NULL;
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(2,0);
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if (!vgmstream) goto fail;
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/* fill in the vital statistics */
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vgmstream->num_samples = file_size/2*2;
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vgmstream->sample_rate = 32000;
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vgmstream->coding_type = coding_G721;
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vgmstream->layout_type = layout_none;
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vgmstream->meta_type = meta_RSF;
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/* open the file for reading by each channel */
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{
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int i;
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for (i=0;i<2;i++) {
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vgmstream->ch[i].streamfile = open_streamfile(filename);
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if (!vgmstream->ch[i].streamfile) goto fail;
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vgmstream->ch[i].channel_start_offset=
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vgmstream->ch[i].offset=
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file_size/2*i;
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g72x_init_state(&(vgmstream->ch[i].g72x_state));
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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 (infile) close_streamfile(infile);
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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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