ps2 EXST support added

git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@112 51a99a44-fe44-0410-b1ba-c3e57ba2b86b

src/libvgmstream.vcproj

@@ -246,6 +246,10 @@
 					RelativePath=".\meta\ps2_ads.c"
 					>
 				</File>
+				<File
+					RelativePath=".\meta\ps2_exst.c"
+					>
+				</File>
 				<File
 					RelativePath=".\meta\ps2_int.c"
 					>

src/meta/ps2_exst.c

@@ -0,0 +1,85 @@
+#include "meta.h"
+#include "../util.h"
+
+/* EXST
+
+   PS2 INT format is an interleaved format found in Shadow of the Colossus                
+   The header start with a EXST id.
+   The headers and bgm datas was separated in the game, and joined in order
+   to add support for vgmstream
+
+   The interleave value is allways 0x400
+   known extensions : .STS
+
+   2008-05-13 - Fastelbja : First version ...
+*/
+
+VGMSTREAM * init_vgmstream_ps2_ads(const char * const filename) {
+    VGMSTREAM * vgmstream = NULL;
+    STREAMFILE * infile = NULL;
+
+    int loop_flag=0;
+    int channel_count;
+    int i;
+
+    /* check extension, case insensitive */
+    if (strcasecmp("sts",filename_extension(filename))) goto fail;
+
+    /* try to open the file for header reading */
+    infile = open_streamfile(filename);
+    if (!infile) goto fail;
+
+    /* check EXST Header */
+    if (read_32bitBE(0x00,infile) != 0x45585354)
+        goto fail;
+
+    /* check loop */
+    loop_flag = (read_32bitLE(0x0C,infile)==1);
+
+    channel_count=read_16bitLE(0x06,infile);
+
+    /* build the VGMSTREAM */
+    vgmstream = allocate_vgmstream(channel_count,loop_flag);
+    if (!vgmstream) goto fail;
+
+    /* fill in the vital statistics */
+    vgmstream->channels = read_16bitLE(0x06,infile);
+    vgmstream->sample_rate = read_32bitLE(0x08,infile);
+
+    /* Compression Scheme */
+    vgmstream->coding_type = coding_PSX;
+    vgmstream->num_samples = (read_32bitLE(0x14,infile)*0x400)/16*28;
+
+    /* Get loop point values */
+    if(vgmstream->loop_flag) {
+        vgmstream->loop_start_sample = (read_32bitLE(0x10,infile)*0x400)/16*28;
+        vgmstream->loop_end_sample = (read_32bitLE(0x14,infile)*0x400)/16*28;
+    }
+
+    vgmstream->interleave_block_size = 0x400;
+    vgmstream->layout_type = layout_interleave;
+    vgmstream->meta_type = meta_PS2_EXST;
+
+    close_streamfile(infile); infile=NULL;
+
+    /* open the file for reading by each channel */
+    {
+        for (i=0;i<channel_count;i++) {
+            vgmstream->ch[i].streamfile = open_streamfile_buffer(filename,0x8000);
+
+            if (!vgmstream->ch[i].streamfile) goto fail;
+
+            vgmstream->ch[i].channel_start_offset=
+                vgmstream->ch[i].offset=
+                0x800+vgmstream->interleave_block_size*i;
+        }
+    }
+
+    return vgmstream;
+
+    /* clean up anything we may have opened */
+fail:
+    if (infile) close_streamfile(infile);
+    if (vgmstream) close_vgmstream(vgmstream);
+    return NULL;
+}

src/vgmstream.c

@@ -598,6 +598,9 @@ void describe_vgmstream(VGMSTREAM * vgmstream, char * desc, int length) {
         case meta_DSP_STM:
             snprintf(temp,TEMPSIZE,"Nintendo STM header");
             break;
+        case meta_PS2_EXST:
+            snprintf(temp,TEMPSIZE,"EXST File (Shadow of the Colossus)");
+            break;
         default:
             snprintf(temp,TEMPSIZE,"THEY SHOULD HAVE SENT A POET");
     }

src/vgmstream.h

@@ -78,7 +78,7 @@ typedef enum {
 	meta_PS2_NPSF,			/* Namco Production Sound File */
 	meta_PS2_RXW,			/* Sony Arc The Lad Sound File */
 	meta_PS2_RAW,			/* RAW Interleaved Format */
-
+	meta_PS2_EXST,			/* Shadow of Colossus EXST */
 	meta_PSX_XA,			/* CD-XA with RIFF header */
 
 } meta_t;

winamp/in_vgmstream.c

@@ -45,7 +45,7 @@ int fade_samples = 0;
 
 #define EXTENSION_LIST_SIZE 1024
 char working_extension_list[EXTENSION_LIST_SIZE] = {0};
-#define EXTENSION_COUNT 18
+#define EXTENSION_COUNT 19
 char * extension_list[EXTENSION_COUNT] = {
     "adx\0ADX Audio File (*.ADX)\0",
     "afc\0AFC Audio File (*.AFC)\0",
@@ -65,6 +65,7 @@ char * extension_list[EXTENSION_COUNT] = {
 	"xa\0PSX CD-XA File (*.XA)\0",
 	"rxw\0PS2 RXWS File (*.RXW)\0",
 	"int\0PS2 RAW Interleaved PCM (*.INT)\0",
+	"sts\0PS2 EXST Audio File (*.STS)\0",
 };
 
 /* stubs, we don't do anything fancy yet */