mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-13 15:21:04 +01:00
97 lines
3.3 KiB
C
97 lines
3.3 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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#include "../util.h"
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/* BNSF - Namco Bandai's Bandai Namco Sound Format/File */
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VGMSTREAM * init_vgmstream_bnsf(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset = 0, first_offset = 0x0C;
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int loop_flag = 0, channel_count = 0;
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int sample_rate, num_samples, loop_start = 0, loop_end = 0, block_size;
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uint32_t codec, subcodec = 0;
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size_t sdat_size;
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off_t loop_chunk = 0, sfmt_chunk, sdat_chunk;
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if (!check_extensions(streamFile,"bnsf"))
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goto fail;
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if (read_32bitBE(0,streamFile) != 0x424E5346) /* "BNSF" */
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goto fail;
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codec = read_32bitBE(0x08,streamFile);
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/* check RIFF size (for siren22 it's full size) */
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if (read_32bitBE(0x04,streamFile) + (codec == 0x49533232 ? 0 : 8) != get_streamfile_size(streamFile))
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goto fail;
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if (!find_chunk_be(streamFile, 0x73666d74,first_offset,0, &sfmt_chunk,NULL)) /* "sfmt" */
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goto fail;
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if (!find_chunk_be(streamFile, 0x73646174,first_offset,0, &sdat_chunk,&sdat_size)) /* "sdat" */
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goto fail;
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if ( find_chunk_be(streamFile, 0x6C6F6F70,first_offset,0, &loop_chunk,NULL)) { /* "loop" */
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loop_flag = 1;
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loop_start = read_32bitBE(loop_chunk+0x00, streamFile);
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loop_end = read_32bitBE(loop_chunk+0x04,streamFile);
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}
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subcodec = read_16bitBE(sfmt_chunk+0x00,streamFile);
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channel_count = read_16bitBE(sfmt_chunk+0x02,streamFile);
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sample_rate = read_32bitBE(sfmt_chunk+0x04,streamFile);
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num_samples = read_32bitBE(sfmt_chunk+0x08,streamFile);
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/* 0x0c: some kind of sample count (skip?), can be 0 when no loops */
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block_size = read_16bitBE(sfmt_chunk+0x10,streamFile);
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//block_samples = read_16bitBE(sfmt_chunk+0x12,streamFile);
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/* max_samples = sdat_size/block_size*block_samples //num_samples is smaller */
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start_offset = sdat_chunk;
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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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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = num_samples;
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vgmstream->loop_start_sample = loop_start;
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vgmstream->loop_end_sample = loop_end;
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vgmstream->meta_type = meta_BNSF;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = block_size/channel_count;
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/* some IS14 voice files have 0x02 (Tales of Zestiria, The Idolm@ster 2); data looks normal and silent
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* frames decode ok but rest fails, must be some subtle decoding variation (not encryption) */
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if (subcodec != 0)
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goto fail;
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switch (codec) {
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#ifdef VGM_USE_G7221
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case 0x49533134: /* "IS14" */
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vgmstream->coding_type = coding_G7221C;
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vgmstream->codec_data = init_g7221(vgmstream->channels, vgmstream->interleave_block_size);
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if (!vgmstream->codec_data) goto fail;
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break;
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#endif
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#ifdef VGM_USE_G719
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case 0x49533232: /* "IS22" */
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vgmstream->coding_type = coding_G719;
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vgmstream->codec_data = init_g719(vgmstream->channels, vgmstream->interleave_block_size);
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if (!vgmstream->codec_data) goto fail;
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break;
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#endif
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default:
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goto fail;
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}
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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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