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https://github.com/vgmstream/vgmstream.git
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44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
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#include "meta.h"
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/* ADP - from Omikron: The Nomad Soul (PC/DC) */
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VGMSTREAM * init_vgmstream_pc_adp_otns(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset, datasize;
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int loop_flag = 0, channel_count, stereo_flag;
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if (!check_extensions(streamFile,"adp")) goto fail;
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/* no ID, only a basic 0x10 header with filesize and nulls; do some extra checks */
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datasize = read_32bitLE(0x00,streamFile) & 0x00FFFFFF; /*24 bit*/
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if (datasize + 0x10 != streamFile->get_size(streamFile)
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|| read_32bitLE(0x04,streamFile) != 0
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|| read_32bitLE(0x08,streamFile) != 0
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|| read_32bitLE(0x0c,streamFile) != 0)
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goto fail;
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stereo_flag = read_8bit(0x03, streamFile);
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if (stereo_flag > 1 || stereo_flag < 0) goto fail;
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channel_count = stereo_flag ? 2 : 1;
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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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start_offset = 0x10;
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vgmstream->channels = channel_count;
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vgmstream->sample_rate = 22050;
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vgmstream->num_samples = channel_count== 1 ? datasize*2 : datasize;
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vgmstream->coding_type = coding_OTNS_IMA;
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vgmstream->layout_type = layout_none;
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vgmstream->meta_type = meta_OTNS_ADP;
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if (!vgmstream_open_stream(vgmstream, streamFile, start_offset))
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goto fail;
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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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