mirror of
https://github.com/vgmstream/vgmstream.git
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Added Killzone VAGp (.vag); code cleanup
This commit is contained in:
bnnm
parent
973c4bff1d
commit
46d7fcfe80
@ -2,28 +2,29 @@
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#include "../util.h"
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static int vag_find_loop_points(STREAMFILE *streamFile, off_t * loop_start, off_t * loop_end, off_t offset);
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static int vag_find_loop_offsets(STREAMFILE *streamFile, off_t start_offset, off_t * loop_start, off_t * loop_end);
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/* PS2 VAG format, found in many Sony games
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2008-05-17 - Fastelbja : First version ...
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/**
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* VAGp - SDK format, created by Sony's tools (like AIFF2VAG)
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*/
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VGMSTREAM * init_vgmstream_ps2_vag(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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char filename[PATH_LIMIT];
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off_t loopStart = 0;
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off_t loopEnd = 0;
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off_t loopStart = 0;
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off_t loopEnd = 0;
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uint8_t vagID;
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off_t start_offset;
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uint8_t vagID;
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uint32_t version = 0;
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size_t interleave;
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size_t filesize = 0, datasize = 0;
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size_t interleave;
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off_t start_offset;
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int loop_flag=0;
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int loop_samples_found = 0;
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int channel_count=0;
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int i;
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int loop_samples_found = 0;
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/* check extension, case insensitive */
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streamFile->get_name(streamFile,filename,sizeof(filename));
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@ -31,149 +32,167 @@ VGMSTREAM * init_vgmstream_ps2_vag(STREAMFILE *streamFile) {
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/* check VAG Header */
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if (((read_32bitBE(0x00,streamFile) & 0xFFFFFF00) != 0x56414700) && /* "VAG\0" */
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((read_32bitLE(0x00,streamFile) & 0xFFFFFF00) != 0x56414700))
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((read_32bitLE(0x00,streamFile) & 0xFFFFFF00) != 0x56414700))
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goto fail;
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/* Check for correct channel count and loop flag */
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vagID=read_8bit(0x03,streamFile);
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filesize = get_streamfile_size(streamFile);
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switch(vagID) {
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case '1': /* "VAG1" (1 channel) */
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/* version used to create the file
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* ex: 00000000 = v1.8 PC, 00000002 = v1.3 Mac, 00000003 = v1.6+ Mac, 00000020 = v2.0+ PC */
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version = read_32bitBE(0x04,streamFile);
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/* 0x08-0c: reserved */
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datasize = read_32bitBE(0x0c,streamFile);
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/* 0x14-20 reserved */
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/* 0x20-30: name (optional) */
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/* 0x30: data start (first 0x10 usually 0s to init SPU) */
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/* Check for correct channel count and loop flag */
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vagID=read_8bit(0x03,streamFile);
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switch(vagID) {
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case '1': /* "VAG1" (1 channel) [Metal Gear Solid 3] */
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channel_count=1;
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break;
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case '2': /* "VAG2" (2 channels) */
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case '2': /* "VAG2" (2 channels) [Metal Gear Solid 3] */
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channel_count=2;
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break;
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case 'i': /* "VAGi" (interleaved) */
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channel_count=2;
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break;
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case 'V': /* pGAV (little endian header) */
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if(read_32bitBE(0x20,streamFile)==0x53746572) /* "Ster" */
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channel_count=2;
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else
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channel_count=1;
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break;
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case 'p': /* "VAGp" (extended) */
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if((read_32bitBE(0x04,streamFile)<=0x00000004) && (read_32bitBE(0x0c,streamFile)<(get_streamfile_size(streamFile)/2))) {
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loop_flag=(read_32bitBE(0x14,streamFile)!=0);
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channel_count=2;
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}
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else if (read_32bitBE(0x04,streamFile) == 0x00020001) { /* HEVAG */
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loop_flag = vag_find_loop_points(streamFile, &loopStart, &loopEnd, 0x30);
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channel_count = read_8bit(0x1e,streamFile);
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case 'i': /* "VAGi" (interleaved) */
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channel_count=2;
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break;
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case 'V': /* pGAV (little endian / stereo) [Jak 3, Jak X] */
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if (read_32bitBE(0x20,streamFile)==0x53746572) /* "Ster" */
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channel_count=2;
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else
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channel_count=1;
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break;
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case 'p': /* "VAGp" (extended) [most common, ex Ratchet & Clank] */
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if ((version <= 0x00000004) && (datasize < filesize / 2)) {
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loop_flag=(read_32bitBE(0x14,streamFile)!=0);
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channel_count=2;
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}
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else {
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loop_flag = vag_find_loop_points(streamFile, &loopStart, &loopEnd, 0x30);
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channel_count = 1;
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}
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break;
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else if (version == 0x00020001) { /* HEVAG */
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loop_flag = vag_find_loop_offsets(streamFile, 0x30, &loopStart, &loopEnd);
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channel_count = read_8bit(0x1e,streamFile);
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if (channel_count == 0)
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channel_count = 1; /* ex. Lumines */
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}
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else {
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loop_flag = vag_find_loop_offsets(streamFile, 0x30, &loopStart, &loopEnd);
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channel_count = 1;
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}
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break;
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default:
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goto fail;
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}
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}
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/* build the VGMSTREAM */
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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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/* fill in the vital statistics */
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vgmstream->channels = channel_count;
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vgmstream->coding_type = coding_PSX;
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vgmstream->sample_rate = read_32bitBE(0x10,streamFile);
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switch(vagID) {
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case '1': // VAG1
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vgmstream->layout_type=layout_none;
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vgmstream->sample_rate = read_32bitBE(0x10,streamFile);
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vgmstream->num_samples = read_32bitBE(0x0C,streamFile)/16*28;
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interleave = read_32bitLE(0x08,streamFile);
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vgmstream->layout_type=layout_none;
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vgmstream->num_samples = datasize / 16 * 28;
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interleave = read_32bitLE(0x08,streamFile);
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if (interleave != 0) goto fail;
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vgmstream->meta_type=meta_PS2_VAG1;
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start_offset=0x40;
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vgmstream->meta_type=meta_PS2_VAG1;
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start_offset=0x40; /* 0x30 is extra data in VAG1 */
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break;
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case '2': // VAG2
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vgmstream->layout_type=layout_interleave;
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vgmstream->sample_rate = read_32bitBE(0x10,streamFile);
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vgmstream->num_samples = read_32bitBE(0x0C,streamFile)/16*28;
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interleave = 0x800;
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vgmstream->meta_type=meta_PS2_VAG2;
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start_offset=0x40;
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vgmstream->layout_type=layout_interleave;
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vgmstream->num_samples = datasize / 16 * 28; /* datasize is for 1 channel only in VAG2 */
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interleave = 0x800;
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vgmstream->meta_type=meta_PS2_VAG2;
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start_offset=0x40; /* 0x30 is extra data in VAG2 */
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break;
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case 'i': // VAGi
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vgmstream->layout_type=layout_interleave;
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vgmstream->sample_rate = read_32bitBE(0x10,streamFile);
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vgmstream->num_samples = read_32bitBE(0x0C,streamFile)/16*28;
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interleave = read_32bitLE(0x08,streamFile);
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vgmstream->meta_type=meta_PS2_VAGi;
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start_offset=0x800;
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break;
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case 'p': // VAGp
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vgmstream->sample_rate = read_32bitBE(0x10,streamFile);
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interleave=0x10;
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case 'i': // VAGi
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vgmstream->layout_type=layout_interleave;
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vgmstream->num_samples = datasize / 16 * 28;
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interleave = read_32bitLE(0x08,streamFile);
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vgmstream->meta_type=meta_PS2_VAGi;
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start_offset=0x800;
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break;
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case 'p': // VAGp
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interleave=0x10;
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if((read_32bitBE(0x04,streamFile)==0x00000004) && (read_32bitBE(0x0c,streamFile)<(get_streamfile_size(streamFile)/2))) {
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vgmstream->channels=2;
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vgmstream->num_samples = read_32bitBE(0x0C,streamFile);
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if ((version == 0x00000004) && (datasize < filesize / 2)) {
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vgmstream->channels=2;
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vgmstream->num_samples = datasize; /* todo test if datasize/16*28? */
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if(loop_flag) {
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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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loop_samples_found = 1;
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}
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if(loop_flag) {
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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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loop_samples_found = 1;
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}
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start_offset=0x80;
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vgmstream->layout_type=layout_interleave;
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vgmstream->meta_type=meta_PS2_VAGs;
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start_offset=0x80;
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vgmstream->layout_type=layout_interleave;
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vgmstream->meta_type=meta_PS2_VAGs;
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// Double VAG Header @ 0x0000 & 0x1000
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if(read_32bitBE(0,streamFile)==read_32bitBE(0x1000,streamFile)) {
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vgmstream->num_samples = read_32bitBE(0x0C,streamFile)/16*28;
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interleave=0x1000;
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start_offset=0;
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}
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// Double VAG Header @ 0x0000 & 0x1000
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if(read_32bitBE(0,streamFile)==read_32bitBE(0x1000,streamFile)) {
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vgmstream->num_samples = datasize / 16 * 28;
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interleave=0x1000;
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start_offset=0;
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}
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}
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else if (read_32bitBE(0x04,streamFile) == 0x00020001) { /* HEVAG */
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vgmstream->meta_type = meta_PS2_VAGs;
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else if (version == 0x40000000) { /* Guerilla VAG (little endian) */
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datasize = read_32bitLE(0x0c,streamFile);
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vgmstream->sample_rate = read_32bitLE(0x10,streamFile);
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vgmstream->layout_type=layout_none;
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vgmstream->meta_type=meta_PS2_VAGp;
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vgmstream->num_samples = datasize / channel_count / 16 * 28;
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start_offset = 0x30;
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}
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else if (version == 0x00020001) { /* HEVAG */
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vgmstream->coding_type = coding_HEVAG_ADPCM;
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vgmstream->layout_type = layout_interleave;
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vgmstream->meta_type = meta_PS2_VAGs;
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vgmstream->num_samples = read_32bitBE(0x0C,streamFile) / channel_count / 16 * 28;
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vgmstream->num_samples = datasize / channel_count / 16 * 28;
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start_offset = 0x30;
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}
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else { /* VAGp, usually separate L/R files */
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vgmstream->layout_type=layout_none;
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vgmstream->meta_type=meta_PS2_VAGp;
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vgmstream->num_samples = datasize / channel_count / 16 * 28;
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start_offset=0x30;
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}
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else {
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vgmstream->layout_type=layout_none;
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vgmstream->num_samples = read_32bitBE(0x0C,streamFile)/16*28;
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vgmstream->meta_type=meta_PS2_VAGp;
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start_offset=0x30;
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}
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break;
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}
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break;
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case 'V': // pGAV
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vgmstream->layout_type=layout_interleave;
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interleave=0x2000;
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interleave=0x2000; /* Jak 3 interleave, includes header */
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// Jak X hack ...
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if(read_32bitLE(0x1000,streamFile)==0x56414770)
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interleave=0x1000;
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if(read_32bitLE(0x1000,streamFile)==0x56414770) /* "pGAV" */
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interleave=0x1000; /* Jak X interleave, includes header */
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vgmstream->sample_rate = read_32bitLE(0x10,streamFile);
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vgmstream->num_samples = read_32bitLE(0x0C,streamFile)/16*14;
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vgmstream->meta_type=meta_PS2_pGAV;
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start_offset=0;
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break;
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vgmstream->sample_rate = read_32bitLE(0x10,streamFile);
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vgmstream->num_samples = read_32bitLE(0x0C,streamFile)/16*14;
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vgmstream->meta_type=meta_PS2_pGAV;
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start_offset=0;
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break;
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default:
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goto fail;
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}
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}
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vgmstream->interleave_block_size=interleave;
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/* Don't add the header size to loop calc points */
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if(loop_flag && !loop_samples_found) {
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loopStart-=start_offset;
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loopEnd-=start_offset;
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vgmstream->interleave_block_size=interleave;
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/* Don't add the header size to loop calc points */
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if(loop_flag && !loop_samples_found) {
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loopStart-=start_offset;
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loopEnd-=start_offset;
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vgmstream->loop_start_sample = (int32_t)((loopStart/(interleave*channel_count))*interleave)/16*28;
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vgmstream->loop_start_sample += (int32_t)(loopStart%(interleave*channel_count))/16*28;
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vgmstream->loop_end_sample = (int32_t)((loopEnd/(interleave*channel_count))*interleave)/16*28;
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vgmstream->loop_end_sample += (int32_t)(loopEnd%(interleave*channel_count))/16*28;
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}
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}
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/* open the file for reading by each channel */
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@ -203,15 +222,16 @@ fail:
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/**
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* Finds loop points in VAG data using flag markers and updates loop_start and loop_end with the offsets.
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* Finds loop points in VAG data using flag markers and updates loop_start and loop_end with the global offsets.
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*
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* returns 0 if not found
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*/
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static int vag_find_loop_points(STREAMFILE *streamFile, off_t * loop_start, off_t * loop_end, off_t offset) {
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static int vag_find_loop_offsets(STREAMFILE *streamFile, off_t start_offset, off_t * loop_start, off_t * loop_end) {
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off_t loopStart = 0;
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off_t loopEnd = 0;
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/* used for loop points ... */
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/* used for loop points (todo: variations: 0x0c0700..00, 0x070077..77 ) */
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/* 'used to prevent unnecessary SPU interrupts' (optional if no IRQ or no looping) */
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uint8_t eofVAG[16]={0x00,0x07,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x77};
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uint8_t eofVAG2[16]={0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
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uint8_t readbuf[16];
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@ -221,7 +241,7 @@ static int vag_find_loop_points(STREAMFILE *streamFile, off_t * loop_start, off_
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size_t fileLength = get_streamfile_size(streamFile);
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off_t readOffset = offset - 0x10;
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off_t readOffset = start_offset - 0x10;
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do {
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readOffset+=0x10;
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@ -246,8 +266,8 @@ static int vag_find_loop_points(STREAMFILE *streamFile, off_t * loop_start, off_
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// if so we don't loop, if not present, we loop from end to start ...
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int read = read_streamfile(readbuf,readOffset+0x10,0x10,streamFile);
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if(read > 0 && readbuf[0]!=0x00 && readbuf[0]!=0x0c) { /* is there valid data after flag 0x1? */
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if(memcmp(readbuf,eofVAG,0x10) && (memcmp(readbuf,eofVAG2,0x10))) { /* probably could just check flag 0x7 */
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loopStart = offset + 0x10;
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if(memcmp(readbuf,eofVAG,0x10) && (memcmp(readbuf,eofVAG2,0x10))) { /* probably could just check flag 0x7*/
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loopStart = start_offset + 0x10; /* todo proper start */
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loopEnd = readOffset;
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break;
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}
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@ -257,7 +277,7 @@ static int vag_find_loop_points(STREAMFILE *streamFile, off_t * loop_start, off_
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} while (streamFile->get_offset(streamFile)<(off_t)fileLength);
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if (loopEnd) {
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if (loopStart && loopEnd) {
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*loop_start = loopStart;
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*loop_end = loopEnd;
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return 1;
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