Add Support for .GCM from NamCollection (PS2)

git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@766 51a99a44-fe44-0410-b1ba-c3e57ba2b86b

src/Makefile

@@ -227,7 +227,8 @@ META_OBJS=meta/adx_header.o \
     meta/ps2_ster.o \
     meta/ps2_wb.o \
     meta/bnsf.o \
-    meta/s14_sss.o
+    meta/s14_sss.o \
+    meta/ps2_gcm.o
     
 OBJECTS=vgmstream.o streamfile.o util.o $(CODING_OBJS) $(LAYOUT_OBJS) $(META_OBJS)
 

src/libvgmstream.vcproj

@@ -570,6 +570,10 @@
 					RelativePath=".\meta\ps2_gbts.c"
 					>
 				</File>
+				<File
+					RelativePath=".\meta\ps2_gcm.c"
+					>
+				</File>
 				<File
 					RelativePath=".\meta\ps2_hgc1.c"
 					>

src/meta/Makefile.unix.am

@@ -184,5 +184,6 @@ libmeta_la_SOURCES += ps2_ster.c
 libmeta_la_SOURCES += bnsf.c
 libmeta_la_SOURCES += ps2_wb.c
 libmeta_la_SOURCES += s14_sss.c
+libmeta_la_SOURCES += ps2_gcm.c
 
 EXTRA_DIST = meta.h

src/meta/meta.h

@@ -453,4 +453,6 @@ VGMSTREAM * init_vgmstream_ps2_wb(STREAMFILE* streamFile);
 
 VGMSTREAM * init_vgmstream_s14_sss(STREAMFILE* streamFile);
 
+VGMSTREAM * init_vgmstream_ps2_gcm(STREAMFILE* streamFile);
+
 #endif

src/meta/ps2_gcm.c

@@ -0,0 +1,62 @@
+#include "meta.h"
+#include "../util.h"
+
+/* GCM (from NamCollection) */
+VGMSTREAM * init_vgmstream_ps2_gcm(STREAMFILE *streamFile) {
+    VGMSTREAM * vgmstream = NULL;
+    char filename[260];
+    off_t start_offset;
+
+    int loop_flag;
+   int channel_count;
+
+    /* check extension, case insensitive */
+    streamFile->get_name(streamFile,filename,sizeof(filename));
+    if (strcasecmp("gcm",filename_extension(filename))) goto fail;
+
+    /* check header */
+    if (read_32bitBE(0x00,streamFile) != 0x4D434700) /* "MCG" */
+        goto fail;
+	if (read_32bitBE(0x20,streamFile) != 0x56414770) /* "VAGp" */
+        goto fail;
+
+    loop_flag = 0;
+    channel_count= 2;
+    
+   /* build the VGMSTREAM */
+    vgmstream = allocate_vgmstream(channel_count,loop_flag);
+    if (!vgmstream) goto fail;
+
+   /* fill in the vital statistics */
+    start_offset = 0x80;
+   vgmstream->channels = channel_count;
+    vgmstream->sample_rate = read_32bitBE(0x30,streamFile);
+    vgmstream->coding_type = coding_PSX;
+    vgmstream->num_samples = read_32bitLE(0x10,streamFile)*28/32;
+    vgmstream->layout_type = layout_interleave;
+    vgmstream->interleave_block_size = read_32bitLE(0x14,streamFile);
+    vgmstream->meta_type = meta_PS2_GCM;
+
+    /* open the file for reading */
+    {
+        int i;
+        STREAMFILE * file;
+        file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
+        if (!file) goto fail;
+        for (i=0;i<channel_count;i++) {
+            vgmstream->ch[i].streamfile = file;
+
+            vgmstream->ch[i].channel_start_offset=
+                vgmstream->ch[i].offset=start_offset+
+                vgmstream->interleave_block_size*i;
+
+        }
+    }
+
+    return vgmstream;
+
+    /* clean up anything we may have opened */
+fail:
+    if (vgmstream) close_vgmstream(vgmstream);
+    return NULL;
+}

src/meta/ps2_wb.c

@@ -22,7 +22,7 @@ VGMSTREAM * init_vgmstream_ps2_wb(STREAMFILE *streamFile) {
     channel_count = 2;
 
     /* build the VGMSTREAM */
-    vgmstream = allocate_vgmstream(channel_count,loop_flag);
+    vgmstream = allocate_vgmstream(channel_count,loop_flag);
     if (!vgmstream) goto fail;
 
     /* fill in the vital statistics */

src/vgmstream.c

@@ -247,6 +247,7 @@ VGMSTREAM * (*init_vgmstream_fcns[])(STREAMFILE *streamFile) = {
 	init_vgmstream_ps2_wb,
     init_vgmstream_bnsf,
     init_vgmstream_s14_sss,
+    init_vgmstream_ps2_gcm,
 };
 
 #define INIT_VGMSTREAM_FCNS (sizeof(init_vgmstream_fcns)/sizeof(init_vgmstream_fcns[0]))
@@ -2485,6 +2486,9 @@ void describe_vgmstream(VGMSTREAM * vgmstream, char * desc, int length) {
         case meta_SSS:
             snprintf(temp,TEMPSIZE,"assumed Polycom Siren 14 by .sss extension");
             break;
+        case meta_PS2_GCM:
+            snprintf(temp,TEMPSIZE,"NamCollection");
+            break;
         default:
            snprintf(temp,TEMPSIZE,"THEY SHOULD HAVE SENT A POET");
     }

src/vgmstream.h

@@ -446,6 +446,7 @@ typedef enum {
 	meta_PS2_WB,            /* Shooting Love. ~TRIZEAL~ */
     meta_S14,               /* raw Siren 14, 24kbit mono */
     meta_SSS,               /* raw Siren 14, 48kbit stereo */
+	meta_PS2_GCM,           /* NamCollection */
 } meta_t;
 
 typedef struct {