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53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* .AIF - from Asobo Studio games [Ratatouille (PC), WALL-E (PC), Up (PC)] */
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VGMSTREAM* init_vgmstream_aif_asobo(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t start_offset;
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size_t data_size;
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int loop_flag, channels, sample_rate;
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/* checks */
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if (read_u16le(0x00,sf) != 0x69) /* fmt chunk with Xbox codec */
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goto fail;
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/* aif: standard, .laif: for plugins */
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if ( !check_extensions(sf,"aif,laif") )
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goto fail;
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channels = read_u16le(0x02,sf); /* assumed, only stereo is known */
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if (channels != 2) goto fail;
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sample_rate = read_u32le(0x04,sf);
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/* 0x08: bitrate */
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if (read_u16le(0x0c,sf) != 0x24 * channels) /* Xbox block */
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goto fail;
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if (read_u16le(0x0e,sf) != 0x04) /* Xbox bps */
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goto fail;
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loop_flag = 0;
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start_offset = 0x14;
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data_size = get_streamfile_size(sf) - start_offset;
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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_AIF_ASOBO;
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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = xbox_ima_bytes_to_samples(data_size, channels);
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vgmstream->coding_type = coding_XBOX_IMA;
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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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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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