mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-14 07:32:52 +01:00
69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
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#include "meta.h"
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#include "../header.h"
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/* CXS - found in Eternal Sonata (Xbox 360) */
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VGMSTREAM * init_vgmstream_x360_cxs(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 */
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if ( !header_check_extensions(streamFile,"cxs"))
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x43585320) /* "CXS " */
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goto fail;
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loop_flag = read_32bitBE(0x18,streamFile) > 0;
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channel_count = read_32bitBE(0x0c,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 = read_32bitBE(0x04,streamFile) + read_32bitBE(0x28,streamFile); /* assumed, seek table always at 0x800 */
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/* 0x04: data start? */
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vgmstream->sample_rate = read_32bitBE(0x08,streamFile);
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vgmstream->channels = channel_count; /*0x0c*/
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vgmstream->num_samples = read_32bitBE(0x10,streamFile) + 576; /*todo add proper encoder_delay*/
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vgmstream->loop_start_sample = read_32bitBE(0x14,streamFile);
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vgmstream->loop_end_sample = read_32bitBE(0x18,streamFile);
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/* 0x1c: below */
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vgmstream->meta_type = meta_X360_CXS;
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vgmstream->layout_type = layout_none;
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#ifdef VGM_USE_FFMPEG
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{
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ffmpeg_codec_data *ffmpeg_data = NULL;
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uint8_t buf[100];
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size_t bytes, datasize, block_size, block_count;
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block_count = read_32bitBE(0x1c,streamFile);
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block_size = read_32bitBE(0x20,streamFile);
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datasize = read_32bitBE(0x24,streamFile);
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/* make a fake riff so FFmpeg can parse the XMA2 */
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bytes = header_make_riff_xma2(buf,100, vgmstream->num_samples, datasize, vgmstream->channels, vgmstream->sample_rate, block_count, block_size);
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if (bytes <= 0)
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goto fail;
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ffmpeg_data = init_ffmpeg_header_offset(streamFile, buf,bytes, start_offset,datasize);
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if ( !ffmpeg_data ) goto fail;
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vgmstream->codec_data = ffmpeg_data;
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vgmstream->coding_type = coding_FFmpeg;
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}
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#else
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goto fail;
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#endif
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/* open the file for reading */
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if ( !header_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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