mirror of
https://github.com/vgmstream/vgmstream.git
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56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
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#include "meta.h"
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#include "../coding/coding.h"
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/* SSPR - Capcom container [Sengoku Basara 4 (PS3/PS4), Mega Man Zero ZX Legacy Collection (PS4)] */
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VGMSTREAM* init_vgmstream_sspr(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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STREAMFILE* temp_sf = NULL;
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uint32_t name_offset, subfile_offset, subfile_size, name_size;
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int big_endian;
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int total_subsongs, target_subsong = sf->stream_index;
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char* extension;
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uint32_t (*read_u32)(off_t,STREAMFILE*) = NULL;
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/* checks */
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if (!check_extensions(sf,"sspr"))
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goto fail;
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if (!is_id32be(0x00,sf,"SSPR"))
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goto fail;
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/* Simple (audio only) container used some Capcom games (common engine?).
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* Some files come with a .stqr with unknown data (cues?). */
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big_endian = guess_endianness32bit(0x04, sf); /* 0x01 (version?) */
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read_u32 = big_endian ? read_u32be : read_u32le;
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total_subsongs = read_u32(0x08,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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/* 0x0c: null */
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name_offset = read_u32(0x10 + (target_subsong-1) * 0x10 + 0x00,sf);
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subfile_offset = read_u32(0x10 + (target_subsong-1) * 0x10 + 0x04,sf);
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name_size = read_u32(0x10 + (target_subsong-1) * 0x10 + 0x08,sf);
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subfile_size = read_u32(0x10 + (target_subsong-1) * 0x10 + 0x0c,sf);
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extension = big_endian ? "at3" : "at9";
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temp_sf = setup_subfile_streamfile(sf, subfile_offset, subfile_size, extension);
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if (!temp_sf) goto fail;
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vgmstream = init_vgmstream_riff(temp_sf);
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if (!vgmstream) goto fail;
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vgmstream->num_streams = total_subsongs;
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read_string(vgmstream->stream_name,name_size+1, name_offset,sf);
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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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