mirror of
https://github.com/vgmstream/vgmstream.git
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53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
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#include "meta.h"
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#include "../coding/coding.h"
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/* .zwv - from Namco games [THE iDOLM@STER Shiny TV (PS3)] */
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VGMSTREAM* init_vgmstream_zwv(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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STREAMFILE* temp_sf = NULL;
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off_t subfile_offset;
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size_t subfile_size;
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/* checks */
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if (!check_extensions(sf,"zwv"))
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goto fail;
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if (read_u32be(0x00,sf) != 0x77617665) /* "wave" */
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goto fail;
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/* has a mini header then a proper MSF:
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* 0x04: null
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* 0x08: null
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* 0x0c: version/config? (0x06040000)
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* 0x10: version/config? (0x00030210)
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* 0x14: sample rate
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* 0x18: ? (related to sample rate)
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* 0x1c: null
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* 0x20: data offset
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* 0x24: data size
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* 0x28: loop flag (0x30+ is removed if no loop)
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* 0x2c: ? (related to loop, or null)
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* 0x30: null
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* 0x30: loop start offset (same as MSF)
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* 0x30: loop end offset (same as MSF start+length)
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* 0x3c: null
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*/
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subfile_offset = read_u32be(0x20, sf) - 0x40;
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subfile_size = read_u32be(0x24, sf) + 0x40;
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temp_sf = setup_subfile_streamfile(sf, subfile_offset, subfile_size, "msf");
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if (!temp_sf) goto fail;
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vgmstream = init_vgmstream_msf(temp_sf);
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if (!vgmstream) goto fail;
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close_streamfile(temp_sf);
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return vgmstream;
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fail:
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close_streamfile(temp_sf);
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close_vgmstream(vgmstream);
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return NULL;
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}
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