mirror of
https://github.com/vgmstream/vgmstream.git
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77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
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#include "meta.h"
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#include "../coding/coding.h"
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/* WXD+WXH - stream container from Relic's earlier games [Homeworld (PC), Homeworld Cataclysm (PC)] */
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VGMSTREAM* init_vgmstream_wxd_wxh(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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STREAMFILE* sh = NULL;
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uint32_t start_offset, offset, data_size;
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int loop_flag, channels, bitrate, internal_rate;
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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, "wxd"))
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goto fail;
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if (!is_id32be(0x00,sf, "WXD1"))
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goto fail;
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/* 0x04: crc? */
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/* companion .wxh found in .big bigfiles, must extract and put together */
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sh = open_streamfile_by_ext(sf,"wxh");
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if (!sh) goto fail;
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if (!is_id32be(0x00,sh, "WXH1"))
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goto fail;
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/* 0x04: crc? */
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total_subsongs = read_u32le(0x08,sh);
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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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offset = 0x0c + (target_subsong-1) * 0x0c;
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start_offset = read_u32le(offset + 0x00,sh);
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loop_flag = read_u16le(offset + 0x04,sh);
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bitrate = read_u16le(offset + 0x06,sh);
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/* 0x08: volume (255=max) */
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channels = read_u8 (offset + 0x09,sh);
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/* 0x0a: unused (-1) */
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internal_rate = 44100;
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/* stream info */
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if (!is_id32be(start_offset + 0x00,sf, "DATA"))
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goto fail;
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data_size = read_u32le(start_offset + 0x04,sf);
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start_offset += 0x08;
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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_WXD_WXH;
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vgmstream->sample_rate = 44100;
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vgmstream->num_samples = relic_bytes_to_samples(data_size, channels, bitrate);
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vgmstream->loop_start_sample = 0;
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vgmstream->loop_end_sample = vgmstream->num_samples;
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vgmstream->num_streams = total_subsongs;
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vgmstream->stream_size = data_size;
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vgmstream->codec_data = init_relic(channels, bitrate, internal_rate);
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if (!vgmstream->codec_data) goto fail;
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vgmstream->coding_type = coding_RELIC;
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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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close_streamfile(sh);
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return vgmstream;
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fail:
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close_streamfile(sh);
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close_vgmstream(vgmstream);
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return NULL;
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}
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