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https://github.com/vgmstream/vgmstream.git
synced 2024-12-13 15:21:04 +01:00
8da3f4a7cb
Doesn't actually fix anything; looping or not with or without shortblocks it results in the same output
49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
#include "meta.h"
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#include "../util.h"
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/* STRM - from Final Fantasy Tactics A2 (NDS) */
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VGMSTREAM * init_vgmstream_nds_strm_ffta2(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channel_count;
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/* check extension, case insensitive (the ROM seems to use simply .bin though) */
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if (!check_extensions(streamFile,"strm"))
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goto fail;
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/* check header */
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if (read_32bitBE(0x00,streamFile) != 0x52494646 || /* "RIFF" */
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read_32bitBE(0x08,streamFile) != 0x494D4120) /* "IMA " */
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goto fail;
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loop_flag = (read_32bitLE(0x20,streamFile) !=0);
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channel_count = read_32bitLE(0x24,streamFile);
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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start_offset = 0x2C;
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vgmstream->channels = channel_count;
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vgmstream->sample_rate = read_32bitLE(0x0C,streamFile);
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vgmstream->coding_type = coding_IMA_int; //todo: seems it has some diffs vs regular IMA
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vgmstream->num_samples = (read_32bitLE(0x04,streamFile)-start_offset);
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if (loop_flag) {
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vgmstream->loop_start_sample = read_32bitLE(0x20,streamFile);
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vgmstream->loop_end_sample = read_32bitLE(0x28,streamFile);
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}
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vgmstream->interleave_block_size = 0x80;
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vgmstream->layout_type = layout_interleave;
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vgmstream->meta_type = meta_NDS_STRM_FFTA2;
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if (!vgmstream_open_stream(vgmstream,streamFile,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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