87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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#include "xwma_konami_streamfile.h"
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/* MSFC - Konami (Armature?) variation [Metal Gear Solid 2 HD (X360), Metal Gear Solid 3 HD (X360)] */
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VGMSTREAM * init_vgmstream_xwma_konami(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, codec, sample_rate;
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size_t data_size;
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STREAMFILE *temp_streamFile = NULL;
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/* checks */
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if (!check_extensions(streamFile,"xwma"))
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x58574D41) /* "XWMA" */
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goto fail;
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codec = read_32bitBE(0x04,streamFile);
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channel_count = read_32bitBE(0x08,streamFile);
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sample_rate = read_32bitBE(0x0c,streamFile);
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data_size = read_32bitBE(0x10,streamFile); /* data size without padding */
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loop_flag = 0;
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start_offset = 0x20;
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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->meta_type = meta_XWMA_KONAMI;
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#ifdef VGM_USE_FFMPEG
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{
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uint8_t buf[0x100];
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int bytes, avg_bps, block_align;
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/* 0x10: related to size? */
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avg_bps = read_32bitBE(0x14, streamFile);
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block_align = read_32bitBE(0x18, streamFile);
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/* data has padding (unrelated to KCEJ blocks) */
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temp_streamFile = setup_xwma_konami_streamfile(streamFile, start_offset, block_align);
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if (!temp_streamFile) goto fail;
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bytes = ffmpeg_make_riff_xwma(buf,0x100, codec, data_size, channel_count, sample_rate, avg_bps, block_align);
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vgmstream->codec_data = init_ffmpeg_header_offset(temp_streamFile, buf,bytes, 0x00,data_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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/* manually find total samples */
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{
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ms_sample_data msd = {0};
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msd.channels = vgmstream->channels;
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msd.data_offset = 0x00;
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msd.data_size = data_size;
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if (codec == 0x0161)
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wma_get_samples(&msd, temp_streamFile, block_align, vgmstream->sample_rate,0x001F);
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//else //todo not correct
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// wmapro_get_samples(&msd, temp_streamFile, block_align, vgmstream->sample_rate,0x00E0);
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vgmstream->num_samples = msd.num_samples;
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if (vgmstream->num_samples == 0)
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vgmstream->num_samples = ffmpeg_get_samples(vgmstream->codec_data); /* from avg-br */
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//num_samples seem to be found in the last "seek" table entry too, as: entry / channels / 2
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}
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}
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#else
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goto fail;
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#endif
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close_streamfile(temp_streamFile);
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return vgmstream;
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fail:
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close_streamfile(temp_streamFile);
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close_vgmstream(vgmstream);
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return NULL;
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}
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