mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-24 04:14:50 +01:00
188 lines
7.7 KiB
C
188 lines
7.7 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* XNB - Microsoft XNA Game Studio 4.0 format */
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VGMSTREAM * init_vgmstream_xnb(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset, xma_chunk_offset = 0;
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int loop_flag = 0, channel_count, num_samples = 0, loop_start = 0, loop_end = 0;
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int big_endian, flags, codec, sample_rate, block_align, bps;
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size_t data_size;
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char platform;
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/* checks */
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if (!check_extensions(streamFile,"xnb"))
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goto fail;
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if ((read_32bitBE(0,streamFile) & 0xFFFFFF00) != 0x584E4200) /* "XNB" */
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goto fail;
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/* XNA Studio platforms: 'w' = Windows, 'm' = Windows Phone 7, 'x' = X360
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* MonoGame extensions: 'i' = iOS, 'a' = Android, 'X' = MacOSX, 'P' = PS4, 'S' = Switch, etc */
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platform = read_8bit(0x03,streamFile);
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big_endian = (platform == 'x');
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if (read_8bit(0x04,streamFile) != 0x04 && /* XNA 3.0? found on Scare Me (XBLIG), no notable diffs */
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read_8bit(0x04,streamFile) != 0x05) /* XNA 4.0 version */
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goto fail;
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flags = read_8bit(0x05,streamFile);
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//if (flags & 0x01) goto fail; /* "HiDef profile" content (no actual difference) */
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if (flags & 0x80) goto fail; /* compressed with LZX/XMemCompress (at 0x0a is decompressed size) */
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if (flags & 0x40) goto fail; /* compressed with LZ4, MonoGame extension [ex. Square Heroes (PS4)] */
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/* full size */
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if (read_32bitLE(0x06,streamFile) != get_streamfile_size(streamFile))
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goto fail;
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/* XNB contains "type reader" class references to parse "shared resource" data (can be any implemented filetype) */
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{
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char reader_name[255+1];
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off_t current_offset = 0x0a;
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size_t reader_string_len;
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uint32_t fmt_chunk_size;
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const char * type_sound = "Microsoft.Xna.Framework.Content.SoundEffectReader"; /* partial "fmt" chunk or XMA */
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//const char * type_song = "Microsoft.Xna.Framework.Content.SongReader"; /* just references a companion .wma */
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/* type reader count, accept only one for now */
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if (read_8bit(current_offset++, streamFile) != 1)
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goto fail;
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reader_string_len = read_8bit(current_offset++, streamFile); /* doesn't count null */
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if (reader_string_len > 255) goto fail;
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/* check SoundEffect type string */
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if (read_string(reader_name,reader_string_len+1,current_offset,streamFile) != reader_string_len)
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goto fail;
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if ( strcmp(reader_name, type_sound) != 0 )
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goto fail;
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current_offset += reader_string_len + 1;
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current_offset += 0x04; /* reader version */
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/* shared resource count */
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if (read_8bit(current_offset++, streamFile) != 1)
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goto fail;
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/* shared resource: partial "fmt" chunk */
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fmt_chunk_size = read_32bitLE(current_offset, streamFile);
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current_offset += 0x04;
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{
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int32_t (*read_32bit)(off_t,STREAMFILE*) = big_endian ? read_32bitBE : read_32bitLE;
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int16_t (*read_16bit)(off_t,STREAMFILE*) = big_endian ? read_16bitBE : read_16bitLE;
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codec = (uint16_t)read_16bit(current_offset+0x00, streamFile);
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channel_count = read_16bit(current_offset+0x02, streamFile);
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sample_rate = read_32bit(current_offset+0x04, streamFile);
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/* 0x08: byte rate */
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block_align = read_16bit(current_offset+0x0c, streamFile);
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bps = read_16bit(current_offset+0x0e, streamFile);
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if (codec == 0x0002) {
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if (!msadpcm_check_coefs(streamFile, current_offset + 0x14))
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goto fail;
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}
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if (codec == 0x0166) {
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xma2_parse_fmt_chunk_extra(streamFile, current_offset, &loop_flag, &num_samples, &loop_start, &loop_end, big_endian);
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xma_chunk_offset = current_offset;
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}
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if (codec == 0xFFFF) {
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if (platform != 'S') goto fail;
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sample_rate = read_32bit(current_offset+fmt_chunk_size+0x04+0x08, streamFile);
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}
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}
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current_offset += fmt_chunk_size;
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data_size = read_32bitLE(current_offset, streamFile);
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current_offset += 0x04;
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start_offset = current_offset;
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}
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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_XNB;
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switch (codec) {
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case 0x01: /* Dragon's Blade (Android) */
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/* null in Metagalactic Blitz (PC) */
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if (!block_align)
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block_align = (bps == 8 ? 0x01 : 0x02) * channel_count;
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vgmstream->coding_type = bps == 8 ? coding_PCM8_U : coding_PCM16LE;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = block_align / channel_count;
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vgmstream->num_samples = pcm_bytes_to_samples(data_size, channel_count, bps);
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break;
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case 0x02: /* White Noise Online (PC) */
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if (!block_align) goto fail;
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vgmstream->coding_type = coding_MSADPCM;
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vgmstream->layout_type = layout_none;
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vgmstream->frame_size = block_align;
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vgmstream->num_samples = msadpcm_bytes_to_samples(data_size, block_align, channel_count);
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break;
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case 0x11:
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if (!block_align) goto fail;
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vgmstream->coding_type = coding_MS_IMA;
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vgmstream->layout_type = layout_none;
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vgmstream->interleave_block_size = block_align;
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vgmstream->num_samples = ms_ima_bytes_to_samples(data_size, block_align, channel_count);
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break;
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#ifdef VGM_USE_FFMPEG
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case 0x166: { /* Terraria (X360) */
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uint8_t buf[0x100];
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int32_t bytes, block_size, block_count;
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block_size = 0x10000; /* guessed */
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block_count = data_size / block_size + (data_size % block_size ? 1 : 0);
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bytes = ffmpeg_make_riff_xma2(buf,0x100, num_samples, data_size, vgmstream->channels, vgmstream->sample_rate, block_count, block_size);
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vgmstream->codec_data = init_ffmpeg_header_offset(streamFile, buf,bytes, start_offset,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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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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xma_fix_raw_samples(vgmstream, streamFile, start_offset,data_size, xma_chunk_offset, 1,1);
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break;
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}
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#endif
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case 0xFFFF: /* Eagle Island (Switch) */
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = data_size / channel_count;
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vgmstream->num_samples = read_32bitLE(start_offset + 0x00, streamFile);
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//vgmstream->num_samples = dsp_bytes_to_samples(data_size - 0x60*channel_count, channel_count);
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dsp_read_coefs(vgmstream,streamFile,start_offset + 0x1c,vgmstream->interleave_block_size,big_endian);
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dsp_read_hist (vgmstream,streamFile,start_offset + 0x3c,vgmstream->interleave_block_size,big_endian);
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break;
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default:
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VGM_LOG("XNB: unknown codec 0x%x\n", codec);
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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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