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@ -16,7 +16,7 @@ VGMSTREAM * init_vgmstream_adx(STREAMFILE *streamFile) {
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off_t stream_offset;
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uint16_t version_signature;
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int loop_flag=0;
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int channel_count;
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int channel_count, i, j, channel_header_spacing;
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int32_t loop_start_sample=0;
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int32_t loop_end_sample=0;
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meta_t header_type;
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@ -25,160 +25,197 @@ VGMSTREAM * init_vgmstream_adx(STREAMFILE *streamFile) {
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char filename[PATH_LIMIT];
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int coding_type = coding_CRI_ADX;
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uint16_t xor_start=0,xor_mult=0,xor_add=0;
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/* Xenoblade Chronicles 3D uses an adx extension as with
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the Wii version, but it's actually DSP ADPCM. Adding
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this flag to account for it. */
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int xb3d_flag = 0;
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/* check extension, case insensitive */
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streamFile->get_name(streamFile,filename,sizeof(filename));
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if (strcasecmp("adx",filename_extension(filename))) goto fail;
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/* check first 2 bytes */
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if ((uint16_t)read_16bitBE(0,streamFile)!=0x8000) goto fail;
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if ((uint16_t)read_16bitBE(0,streamFile)!=0x8000) {
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if (read_8bit(0,streamFile)!=2)goto fail;
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else {xb3d_flag = 1; coding_type = coding_NGC_DSP;}
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}
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if (xb3d_flag) {
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channel_count = read_32bitLE(0, streamFile);
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loop_flag = read_16bitLE(0x6e, streamFile);
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channel_header_spacing = 0x34;
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}
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else {
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/* get stream offset, check for CRI signature just before */
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stream_offset = (uint16_t)read_16bitBE(2,streamFile) + 4;
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if ((uint16_t)read_16bitBE(stream_offset-6,streamFile)!=0x2863 ||/* "(c" */
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(uint32_t)read_32bitBE(stream_offset-4,streamFile)!=0x29435249 /* ")CRI" */
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) goto fail;
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/* get stream offset, check for CRI signature just before */
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stream_offset = (uint16_t)read_16bitBE(2,streamFile) + 4;
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if ((uint16_t)read_16bitBE(stream_offset-6,streamFile)!=0x2863 ||/* "(c" */
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(uint32_t)read_32bitBE(stream_offset-4,streamFile)!=0x29435249 /* ")CRI" */
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) goto fail;
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/* check for encoding type */
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/* 2 is for some unknown fixed filter, 3 is standard ADX, 4 is
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* ADX with exponential scale, 0x11 is AHX */
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if (read_8bit(4,streamFile) != 3) goto fail;
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/* check for encoding type */
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/* 2 is for some unknown fixed filter, 3 is standard ADX, 4 is
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* ADX with exponential scale, 0x11 is AHX */
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if (read_8bit(4,streamFile) != 3) goto fail;
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/* check for frame size (only 18 is supported at the moment) */
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if (read_8bit(5,streamFile) != 18) goto fail;
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/* check for frame size (only 18 is supported at the moment) */
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if (read_8bit(5,streamFile) != 18) goto fail;
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/* check for bits per sample? (only 4 makes sense for ADX) */
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if (read_8bit(6,streamFile) != 4) goto fail;
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/* check for bits per sample? (only 4 makes sense for ADX) */
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if (read_8bit(6,streamFile) != 4) goto fail;
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/* check version signature, read loop info */
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version_signature = read_16bitBE(0x12,streamFile);
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/* encryption */
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if (version_signature == 0x0408) {
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if (find_key(streamFile, 8, &xor_start, &xor_mult, &xor_add))
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{
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coding_type = coding_CRI_ADX_enc_8;
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version_signature = 0x0400;
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}
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}
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else if (version_signature == 0x0409) {
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if (find_key(streamFile, 9, &xor_start, &xor_mult, &xor_add))
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{
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coding_type = coding_CRI_ADX_enc_9;
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version_signature = 0x0400;
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}
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}
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/* check version signature, read loop info */
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version_signature = read_16bitBE(0x12,streamFile);
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/* encryption */
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if (version_signature == 0x0408) {
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if (find_key(streamFile, 8, &xor_start, &xor_mult, &xor_add))
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{
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coding_type = coding_CRI_ADX_enc_8;
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version_signature = 0x0400;
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}
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}
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else if (version_signature == 0x0409) {
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if (find_key(streamFile, 9, &xor_start, &xor_mult, &xor_add))
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{
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coding_type = coding_CRI_ADX_enc_9;
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version_signature = 0x0400;
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}
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}
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if (version_signature == 0x0300) { /* type 03 */
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header_type = meta_ADX_03;
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if (stream_offset-6 >= 0x2c) { /* enough space for loop info? */
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loop_flag = (read_32bitBE(0x18,streamFile) != 0);
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loop_start_sample = read_32bitBE(0x1c,streamFile);
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//loop_start_offset = read_32bitBE(0x20,streamFile);
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loop_end_sample = read_32bitBE(0x24,streamFile);
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//loop_end_offset = read_32bitBE(0x28,streamFile);
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}
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} else if (version_signature == 0x0400) {
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if (version_signature == 0x0300) { /* type 03 */
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header_type = meta_ADX_03;
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if (stream_offset-6 >= 0x2c) { /* enough space for loop info? */
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loop_flag = (read_32bitBE(0x18,streamFile) != 0);
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loop_start_sample = read_32bitBE(0x1c,streamFile);
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//loop_start_offset = read_32bitBE(0x20,streamFile);
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loop_end_sample = read_32bitBE(0x24,streamFile);
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//loop_end_offset = read_32bitBE(0x28,streamFile);
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}
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} else if (version_signature == 0x0400) {
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off_t ainf_info_length=0;
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off_t ainf_info_length=0;
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if((uint32_t)read_32bitBE(0x24,streamFile)==0x41494E46) /* AINF Header */
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ainf_info_length = (off_t)read_32bitBE(0x28,streamFile);
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if((uint32_t)read_32bitBE(0x24,streamFile)==0x41494E46) /* AINF Header */
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ainf_info_length = (off_t)read_32bitBE(0x28,streamFile);
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header_type = meta_ADX_04;
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if (stream_offset-ainf_info_length-6 >= 0x38) { /* enough space for loop info? */
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if (read_32bitBE(0x24,streamFile) == 0xFFFEFFFE)
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loop_flag = 0;
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else
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loop_flag = (read_32bitBE(0x24,streamFile) != 0);
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header_type = meta_ADX_04;
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if (stream_offset-ainf_info_length-6 >= 0x38) { /* enough space for loop info? */
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if (read_32bitBE(0x24,streamFile) == 0xFFFEFFFE)
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loop_start_sample = read_32bitBE(0x28,streamFile);
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//loop_start_offset = read_32bitBE(0x2c,streamFile);
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loop_end_sample = read_32bitBE(0x30,streamFile);
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//loop_end_offset = read_32bitBE(0x34,streamFile);
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}
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} else if (version_signature == 0x0500) { /* found in some SFD : Buggy Heat, appears to have no loop */
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header_type = meta_ADX_05;
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} else goto fail; /* not a known/supported version signature */
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/* At this point we almost certainly have an ADX file,
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* so let's build the VGMSTREAM. */
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/* high-pass cutoff frequency, always 500 that I've seen */
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cutoff = (uint16_t)read_16bitBE(0x10,streamFile);
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if (loop_start_sample == 0 && loop_end_sample == 0) {
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loop_flag = 0;
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else
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loop_flag = (read_32bitBE(0x24,streamFile) != 0);
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}
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loop_start_sample = read_32bitBE(0x28,streamFile);
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//loop_start_offset = read_32bitBE(0x2c,streamFile);
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loop_end_sample = read_32bitBE(0x30,streamFile);
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//loop_end_offset = read_32bitBE(0x34,streamFile);
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}
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} else if (version_signature == 0x0500) { /* found in some SFD : Buggy Heat, appears to have no loop */
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header_type = meta_ADX_05;
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} else goto fail; /* not a known/supported version signature */
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/* At this point we almost certainly have an ADX file,
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* so let's build the VGMSTREAM. */
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/* high-pass cutoff frequency, always 500 that I've seen */
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cutoff = (uint16_t)read_16bitBE(0x10,streamFile);
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if (loop_start_sample == 0 && loop_end_sample == 0) {
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loop_flag = 0;
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}
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channel_count = read_8bit(7,streamFile);
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channel_count = read_8bit(7,streamFile);
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}
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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/* fill in the vital statistics */
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vgmstream->num_samples = read_32bitBE(0xc,streamFile);
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vgmstream->sample_rate = read_32bitBE(8,streamFile);
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/* channels and loop flag are set by allocate_vgmstream */
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vgmstream->loop_start_sample = loop_start_sample;
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vgmstream->loop_end_sample = loop_end_sample;
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vgmstream->coding_type = coding_type;
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if (channel_count==1)
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vgmstream->layout_type = layout_none;
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else
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vgmstream->layout_type = layout_interleave;
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vgmstream->meta_type = header_type;
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vgmstream->interleave_block_size=18;
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/* calculate filter coefficients */
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{
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double x,y,z,a,b,c;
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x = cutoff;
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y = vgmstream->sample_rate;
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z = cos(2.0*M_PI*x/y);
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a = M_SQRT2-z;
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b = M_SQRT2-1.0;
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c = (a-sqrt((a+b)*(a-b)))/b;
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coef1 = floor(c*8192);
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coef2 = floor(c*c*-4096);
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}
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{
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int i;
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STREAMFILE * chstreamfile;
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/* ADX is so tightly interleaved that having two buffers is silly */
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chstreamfile = streamFile->open(streamFile,filename,18*0x400);
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if (!chstreamfile) goto fail;
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for (i=0;i<channel_count;i++) {
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vgmstream->ch[i].streamfile = chstreamfile;
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vgmstream->ch[i].channel_start_offset=
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vgmstream->ch[i].offset=
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stream_offset+18*i;
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vgmstream->ch[i].adpcm_coef[0] = coef1;
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vgmstream->ch[i].adpcm_coef[1] = coef2;
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if (coding_type == coding_CRI_ADX_enc_8 ||
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coding_type == coding_CRI_ADX_enc_9)
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{
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int j;
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vgmstream->ch[i].adx_channels = channel_count;
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vgmstream->ch[i].adx_xor = xor_start;
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vgmstream->ch[i].adx_mult = xor_mult;
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vgmstream->ch[i].adx_add = xor_add;
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for (j=0;j<i;j++)
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adx_next_key(&vgmstream->ch[i]);
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if (xb3d_flag) {
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for (j=0;j<vgmstream->channels;j++) {
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for (i=0;i<16;i++) {
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vgmstream->ch[j].adpcm_coef[i]=read_16bitLE(4+j*channel_header_spacing+i*2,streamFile);
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}
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}
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}
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vgmstream->layout_type = layout_none;
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vgmstream->coding_type = coding_type;
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vgmstream->meta_type = meta_XB3D_ADX;
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vgmstream->sample_rate = read_32bitLE(0x70,streamFile);
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vgmstream->num_samples = read_32bitLE(0x74, streamFile);
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vgmstream->loop_start_sample = read_32bitLE(0x78, streamFile);
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vgmstream->loop_end_sample = read_32bitLE(0x7c, streamFile);
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for (i = 0; i<channel_count; i++) {
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vgmstream->ch[i].streamfile = streamFile->open(streamFile, filename, 0x1000);
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vgmstream->ch[i].channel_start_offset = vgmstream->ch[i].offset
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= read_32bitLE(0x34+i*channel_header_spacing, streamFile);
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if (!vgmstream->ch[i].streamfile) goto fail;
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}
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}
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else {
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vgmstream->num_samples = read_32bitBE(0xc,streamFile);
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vgmstream->sample_rate = read_32bitBE(8,streamFile);
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/* channels and loop flag are set by allocate_vgmstream */
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vgmstream->loop_start_sample = loop_start_sample;
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vgmstream->loop_end_sample = loop_end_sample;
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vgmstream->coding_type = coding_type;
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if (channel_count==1)
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vgmstream->layout_type = layout_none;
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else
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vgmstream->layout_type = layout_interleave;
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vgmstream->meta_type = header_type;
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vgmstream->interleave_block_size=18;
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/* calculate filter coefficients */
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{
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|
double x,y,z,a,b,c;
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x = cutoff;
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y = vgmstream->sample_rate;
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z = cos(2.0*M_PI*x/y);
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a = M_SQRT2-z;
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b = M_SQRT2-1.0;
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|
c = (a-sqrt((a+b)*(a-b)))/b;
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|
coef1 = floor(c*8192);
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coef2 = floor(c*c*-4096);
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|
}
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|
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{
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|
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int i;
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|
|
STREAMFILE * chstreamfile;
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|
/* ADX is so tightly interleaved that having two buffers is silly */
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|
|
|
chstreamfile = streamFile->open(streamFile,filename,18*0x400);
|
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|
|
|
if (!chstreamfile) goto fail;
|
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|
|
for (i=0;i<channel_count;i++) {
|
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|
|
|
vgmstream->ch[i].streamfile = chstreamfile;
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|
|
vgmstream->ch[i].channel_start_offset=
|
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|
|
vgmstream->ch[i].offset=
|
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|
|
|
stream_offset+18*i;
|
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|
|
vgmstream->ch[i].adpcm_coef[0] = coef1;
|
|
|
|
|
vgmstream->ch[i].adpcm_coef[1] = coef2;
|
|
|
|
|
|
|
|
|
|
if (coding_type == coding_CRI_ADX_enc_8 ||
|
|
|
|
|
coding_type == coding_CRI_ADX_enc_9)
|
|
|
|
|
{
|
|
|
|
|
int j;
|
|
|
|
|
vgmstream->ch[i].adx_channels = channel_count;
|
|
|
|
|
vgmstream->ch[i].adx_xor = xor_start;
|
|
|
|
|
vgmstream->ch[i].adx_mult = xor_mult;
|
|
|
|
|
vgmstream->ch[i].adx_add = xor_add;
|
|
|
|
|
|
|
|
|
|
for (j=0;j<i;j++)
|
|
|
|
|
adx_next_key(&vgmstream->ch[i]);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return vgmstream;
|
|
|
|
|
|
|
|
|
|
/* clean up anything we may have opened */
|
|
|
|
|