Some more explicit palette type handling

Original commit message from CVS:
Some more explicit palette type handling

sys/v4l/gstv4lsrc.c

@@ -42,7 +42,10 @@ enum {
   ARG_0,
   ARG_WIDTH,
   ARG_HEIGHT,
-  ARG_PALETTE
+  ARG_PALETTE,
+  ARG_PALETTE_NAME,
+  ARG_NUMBUFS,
+  ARG_BUFSIZE
 };
 
 
@@ -126,7 +129,16 @@ gst_v4lsrc_class_init (GstV4lSrcClass *klass)
     G_MININT,G_MAXINT,0,G_PARAM_READWRITE));
   g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PALETTE,
     g_param_spec_int("palette","palette","palette",
-    G_MININT,G_MAXINT,0,G_PARAM_READWRITE));
+    0,G_MAXUSHORT,0,G_PARAM_READWRITE));
+  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PALETTE_NAME,
+    g_param_spec_string("palette_name","palette_name","palette_name",
+    NULL, G_PARAM_READABLE));
+  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_NUMBUFS,
+    g_param_spec_int("num_buffers","num_buffers","num_buffers",
+    G_MININT,G_MAXINT,0,G_PARAM_READABLE));
+  g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BUFSIZE,
+    g_param_spec_int("buffer_size","buffer_size","buffer_size",
+    G_MININT,G_MAXINT,0,G_PARAM_READABLE));
 
   gobject_class->set_property = gst_v4lsrc_set_property;
   gobject_class->get_property = gst_v4lsrc_get_property;
@@ -434,6 +446,18 @@ gst_v4lsrc_get_property (GObject    *object,
       g_value_set_int(value, v4lsrc->mmap.format);
       break;
 
+    case ARG_PALETTE_NAME:
+      g_value_set_string(value, g_strdup(palette_name[v4lsrc->mmap.format]));
+      break;
+
+    case ARG_NUMBUFS:
+      g_value_set_int(value, v4lsrc->mbuf.frames);
+      break;
+
+    case ARG_BUFSIZE:
+      g_value_set_int(value, v4lsrc->mbuf.size/(v4lsrc->mbuf.frames*1024));
+      break;
+
     default:
       /*parent_class->get_property(object, prop_id, value, pspec);*/
       break;

sys/v4l/gstv4lsrc.h

@@ -74,7 +74,7 @@ struct _GstV4lSrc {
   /* caching values */
   gint width;
   gint height;
-  gint palette;
+  guint16 palette;
 };
 
 struct _GstV4lSrcClass {

sys/v4l/v4lsrc_calls.c

@@ -39,6 +39,28 @@
 #endif
 
 
+/* palette names */
+char *palette_name[] = {
+  "",                          /* 0 */
+  "grayscale",                 /* VIDEO_PALETTE_GREY */
+  "Hi-420",                    /* VIDEO_PALETTE_HI420 */
+  "16-bit RGB (RGB-565)",      /* VIDEO_PALETTE_RB565 */
+  "24-bit RGB",                /* VIDEO_PALETTE_RGB24 */
+  "32-bit RGB",                /* VIDEO_PALETTE_RGB32 */
+  "15-bit RGB (RGB-555)",      /* VIDEO_PALETTE_RGB555 */
+  "YUV-4:2:2 (packed)",        /* VIDEO_PALETTE_YUV422 */
+  "YUYV",                      /* VIDEO_PALETTE_YUYV */
+  "UYVY",                      /* VIDEO_PALETTE_UYVY */
+  "YUV-4:2:0 (packed)",        /* VIDEO_PALETTE_YUV420 */
+  "YUV-4:1:1 (packed)",        /* VIDEO_PALETTE_YUV411 */
+  "Raw",                       /* VIDEO_PALETTE_RAW */
+  "YUV-4:2:2 (planar)",        /* VIDEO_PALETTE_YUV422P */
+  "YUV-4:1:1 (planar)",        /* VIDEO_PALETTE_YUV411P */
+  "YUV-4:2:0 (planar)",        /* VIDEO_PALETTE_YUV420P */
+  "YUV-4:1:0 (planar)"         /* VIDEO_PALETTE_YUV410P */
+};
+
+
 /******************************************************
  * gst_v4lsrc_queue_frame():
  *   queue a frame for capturing
@@ -265,8 +287,9 @@ gst_v4lsrc_capture_init (GstV4lSrc *v4lsrc)
   }
 
   gst_element_info(GST_ELEMENT(v4lsrc),
-    "Got %d buffers of size %d KB",
+    "Got %d buffers (\'%s\') of size %d KB",
-    v4lsrc->mbuf.frames, v4lsrc->mbuf.size/(v4lsrc->mbuf.frames*1024));
+    v4lsrc->mbuf.frames, palette_name[v4lsrc->mmap.format],
+    v4lsrc->mbuf.size/(v4lsrc->mbuf.frames*1024));
 
   /* keep trakc of queued buffers */
   v4lsrc->frame_queued = (gint *) malloc(sizeof(int) * v4lsrc->mbuf.frames);

sys/v4l/v4lsrc_calls.h

@@ -28,6 +28,9 @@ extern "C" {
 #endif /* __cplusplus */
 
 
+extern char *palette_name[];
+
+
 /* frame grabbing/capture (palette = VIDEO_PALETTE_* - see videodev.h) */
 gboolean gst_v4lsrc_set_capture    (GstV4lSrc *v4lsrc, gint width, gint height, gint palette);
 gboolean gst_v4lsrc_capture_init   (GstV4lSrc *v4lsrc);