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44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
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#include "meta.h"
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#include "../coding/coding.h"
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/* .acx - CRI container [Baroque (SAT), Persona 3 (PS2), THE iDOLM@STER: Live For You (X360)] */
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VGMSTREAM* init_vgmstream_acx(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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int total_subsongs, target_subsong = sf->stream_index;
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/* checks */
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if (!check_extensions(sf,"acx"))
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goto fail;
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if (read_u32be(0x00,sf) != 0x00000000)
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goto fail;
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/* simple container for sfx and rarely music [Burning Rangers (SAT)],
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* mainly used until .csb was introduced */
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total_subsongs = read_u32be(0x04,sf);
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if (target_subsong == 0) target_subsong = 1;
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if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) goto fail;
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subfile_offset = read_u32be(0x08 + (target_subsong-1) * 0x08 + 0x00,sf);
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subfile_size = read_u32be(0x08 + (target_subsong-1) * 0x08 + 0x04,sf);
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temp_sf = setup_subfile_streamfile(sf, subfile_offset, subfile_size, "adx");
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if (!temp_sf) goto fail;
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vgmstream = init_vgmstream_adx(temp_sf);
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if (!vgmstream) goto fail;
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vgmstream->num_streams = total_subsongs;
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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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