mirror of
https://github.com/vgmstream/vgmstream.git
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56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
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#include "meta.h"
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#include "../coding/coding.h"
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/* AST - from Marvelous(?) games [Katekyou Hitman Reborn! Dream Hyper Battle! (PS2), Binchou-tan: Shiawasegoyomi (PS2)] */
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VGMSTREAM* init_vgmstream_ast_mmv(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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uint32_t start_offset, data_size;
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int loop_flag, channels, sample_rate, interleave;
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/* checks */
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if (!is_id32be(0x00,sf, "AST\0"))
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goto fail;
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/* .ast: from executables (usually found in bigfiles) */
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if (!check_extensions(sf,"ast"))
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goto fail;
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data_size = read_u32le(0x04, sf);
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if (data_size != get_streamfile_size(sf))
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goto fail;
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sample_rate = read_s32le(0x08,sf);
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channels = read_32bitLE(0x0C,sf);
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interleave = read_u32le(0x10,sf);
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/* 0x14: number of blocks */
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/* 0x18: ? (not fully related to size/time) */
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/* 0x1c: f32 time */
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loop_flag = 0;
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start_offset = 0x100;
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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_AST_MMV;
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vgmstream->num_samples = ps_bytes_to_samples(data_size - start_offset, channels);
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vgmstream->sample_rate = sample_rate;
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vgmstream->interleave_block_size = interleave;
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vgmstream->layout_type = layout_interleave;
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vgmstream->coding_type = coding_PSX;
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read_string(vgmstream->stream_name,0x20, 0x20,sf);
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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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