4232fb3949
Updated VGMStream to r1980-242-gfccbb05f Signed-off-by: Christopher Snowhill <kode54@gmail.com>
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* ASTB - found in Dead Rising (X360) */
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VGMSTREAM* init_vgmstream_astb(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t start_offset, data_size;
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int loop_flag, channels;
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/* checks */
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if (!is_id32be(0x00,sf, "ASTB"))
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return NULL;
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if (!check_extensions(sf,"ast"))
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return NULL;
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// 04: file size
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// 08: 0x200?
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// 0c: version?
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start_offset = read_u32be(0x10,sf);
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// 14: -1?
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// 18: -1?
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// 1c: -1?
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data_size = read_u32be(0x20,sf);
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// 24: -1?
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// 28: -1?
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// 2c: -1?
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if (read_u16be(0x30,sf) != 0x0165) // XMA1 only
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return NULL;
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// 32: xma info size
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// 34: xma config
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int xma_streams = read_u16be(0x38,sf);
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loop_flag = read_u8(0x3a,sf);
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int sample_rate = read_s32be(0x3c + 0x04,sf); // first stream
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channels = 0; // sum of all stream channels (though only 1/2ch are ever seen)
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for (int i = 0; i < xma_streams; i++) {
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channels += read_u8(0x3c + 0x14 * i + 0x11,sf);
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}
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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_ASTB;
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vgmstream->sample_rate = sample_rate;
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{
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/* manually find sample offsets (XMA1 nonsense again) */
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ms_sample_data msd = {0};
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msd.xma_version = 1;
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msd.channels = channels;
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msd.data_offset = start_offset;
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msd.data_size = data_size;
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msd.loop_flag = loop_flag;
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msd.loop_start_b = read_u32be(0x44,sf);
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msd.loop_end_b = read_u32be(0x48,sf);
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msd.loop_start_subframe = read_u8(0x4c,sf) & 0xF; /* lower 4b: subframe where the loop starts, 0..4 */
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msd.loop_end_subframe = read_u8(0x4c,sf) >> 4; /* upper 4b: subframe where the loop ends, 0..3 */
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xma_get_samples(&msd, sf);
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vgmstream->num_samples = msd.num_samples;
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vgmstream->loop_start_sample = msd.loop_start_sample;
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vgmstream->loop_end_sample = msd.loop_end_sample;
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}
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#ifdef VGM_USE_FFMPEG
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{
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off_t fmt_offset = 0x30;
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size_t fmt_size = 0x0c + xma_streams * 0x14;
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/* XMA1 "fmt" chunk @ 0x20 (BE, unlike the usual LE) */
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vgmstream->codec_data = init_ffmpeg_xma_chunk(sf, start_offset, data_size, fmt_offset, fmt_size);
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if (!vgmstream->codec_data) goto fail;
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vgmstream->coding_type = coding_FFmpeg;
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vgmstream->layout_type = layout_none;
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xma_fix_raw_samples(vgmstream, sf, start_offset, data_size, fmt_offset, 1,1);
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}
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#else
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goto fail;
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#endif
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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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