mirror of
https://github.com/vgmstream/vgmstream.git
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51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
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#include "meta.h"
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#include "../coding/coding.h"
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/* .CWAV - from CompressWave lib, found in few Japanese (doujin?) games around 1995-2002 [RADIO ZONDE (PC), GEO ~The Sword Millennia~ (PC)] */
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VGMSTREAM* init_vgmstream_compresswave(STREAMFILE *sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channels;
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/* checks */
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if (!check_extensions(sf, "cwav"))
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goto fail;
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if (!is_id64be(0x00,sf, "CmpWave\0"))
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goto fail;
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channels = 2; /* always, header channels is internal config */
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start_offset = 0x00;
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loop_flag = 1; //read_u8(0x430, sf) != 0; /* wrong count, see below */
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/* codec allows to use a cipher value, not seen */
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/* there is also title and artist, but default to "UnTitled" / "NoName" */
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channels, loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->meta_type = meta_COMPRESSWAVE;
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vgmstream->sample_rate = 44100; /* always, header rate is internal config */
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/* in PCM bytes */
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vgmstream->num_samples = read_u64le(0x418, sf) / sizeof(int16_t) / channels;
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/* known files have wrong loop values and just repeat */
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vgmstream->loop_start_sample = 0; //read_u64le(0x420, sf) / sizeof(int16_t) / channels;
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vgmstream->loop_end_sample = vgmstream->num_samples; //read_u64le(0x428, sf) / sizeof(int16_t) / channels;
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vgmstream->codec_data = init_compresswave(sf);
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if (!vgmstream->codec_data) goto fail;
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vgmstream->coding_type = coding_COMPRESSWAVE;
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vgmstream->layout_type = layout_none;
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if (!vgmstream_open_stream(vgmstream, sf, 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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