v4l library YVYU decoding

@@ -59,6 +59,10 @@
 #define V4L2_PIX_FMT_SRGGB8 v4l2_fourcc('R','G','G','B')
 #endif
 
+#ifndef V4L2_PIX_FMT_YVYU
+#define V4L2_PIX_FMT_YVYU v4l2_fourcc('Y', 'V', 'Y', 'U')
+#endif
+
 #define V4LCONVERT_ERROR_MSG_SIZE 256
 
 #define V4LCONVERT_ERR(...) \

@@ -87,6 +91,15 @@
 void v4lconvert_yuv420_to_bgr24(const unsigned char *src, unsigned char *dst,
   int width, int height);
 
+void v4lconvert_yvyu_to_rgb24(const unsigned char *src, unsigned char *dst,
+  int width, int height);
+
+void v4lconvert_yvyu_to_bgr24(const unsigned char *src, unsigned char *dst,
+  int width, int height);
+
+void v4lconvert_yvyu_to_yuv420(const unsigned char *src, unsigned char *dst,
+  int width, int height);
+
 void v4lconvert_swap_rgb(const unsigned char *src, unsigned char *dst,
   int width, int height);
 

@@ -49,6 +49,7 @@
   V4L2_PIX_FMT_SN9C10X,
   V4L2_PIX_FMT_PAC207,
   V4L2_PIX_FMT_PJPG,
+  V4L2_PIX_FMT_YVYU,
 };
 
 static const unsigned int supported_dst_pixfmts[] = {

@@ -518,6 +519,23 @@
       }
       break;
 
+    case V4L2_PIX_FMT_YVYU:
+      switch (dest_fmt->fmt.pix.pixelformat) {
+      case V4L2_PIX_FMT_RGB24:
+	v4lconvert_yvyu_to_rgb24(src, dest, dest_fmt->fmt.pix.width,
+				   dest_fmt->fmt.pix.height);
+	break;
+      case V4L2_PIX_FMT_BGR24:
+	v4lconvert_yvyu_to_bgr24(src, dest, dest_fmt->fmt.pix.width,
+				   dest_fmt->fmt.pix.height);
+	break;
+      default:
+	v4lconvert_yvyu_to_yuv420(src, dest, dest_fmt->fmt.pix.width,
+		    dest_fmt->fmt.pix.height);
+	break;
+      }
+      break;
+
     default:
       V4LCONVERT_ERR("Unknown src format in conversion\n");
       errno = EINVAL;

91 lines not on this page · raw message