Linux Video Capture: Add V4L2VideoCaptureDelegate{Single,Multi}Plane.

media/video/capture/video_capture_device.h

Index: media/video/capture/video_capture_device.h
diff --git a/media/video/capture/video_capture_device.h b/media/video/capture/video_capture_device.h
index 747f1b00d3a6a98e74ab4d3091e84d9cf13e792c..c3a4abd99cc238a4fe1ffd9b0f1df0e2a0f128e5 100644
--- a/media/video/capture/video_capture_device.h
+++ b/media/video/capture/video_capture_device.h
@@ -41,7 +41,14 @@ class MEDIA_EXPORT VideoCaptureDevice {
     Name();
     Name(const std::string& name, const std::string& id);
 
-#if defined(OS_WIN)
+#if defined(OS_LINUX)
+    // Linux/CrOS targets Capture Api type: it can only be set on construction.
+    enum CaptureApiType {
+      V4L2_SINGLE_PLANE,
+      V4L2_MULTI_PLANE,
+      API_TYPE_UNKNOWN
+    };
+#elif defined(OS_WIN)
     // Windows targets Capture Api type: it can only be set on construction.
     enum CaptureApiType {
       MEDIA_FOUNDATION,
@@ -49,8 +56,7 @@ class MEDIA_EXPORT VideoCaptureDevice {
       DIRECT_SHOW_WDM_CROSSBAR,
       API_TYPE_UNKNOWN
     };
-#endif
-#if defined(OS_MACOSX)
+#elif defined(OS_MACOSX)
     // Mac targets Capture Api type: it can only be set on construction.
     enum CaptureApiType {
       AVFOUNDATION,
@@ -64,7 +70,7 @@ class MEDIA_EXPORT VideoCaptureDevice {
       OTHER_TRANSPORT
     };
 #endif
-#if defined(OS_WIN) || defined(OS_MACOSX)
+#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)
     Name(const std::string& name,
          const std::string& id,
          const CaptureApiType api_type);
@@ -102,7 +108,7 @@ class MEDIA_EXPORT VideoCaptureDevice {
       return unique_id_ < other.id();
     }
 
-#if defined(OS_WIN) || defined(OS_MACOSX)
+#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)
     CaptureApiType capture_api_type() const {
       return capture_api_class_.capture_api_type();
     }
@@ -133,7 +139,7 @@ class MEDIA_EXPORT VideoCaptureDevice {
    private:
     std::string device_name_;
     std::string unique_id_;
-#if defined(OS_WIN) || defined(OS_MACOSX)
+#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)
     // This class wraps the CaptureApiType to give it a by default value if not
     // initialized.
     class CaptureApiClass {
@@ -195,9 +201,22 @@ class MEDIA_EXPORT VideoCaptureDevice {
     virtual void OnIncomingCapturedData(const uint8* data,
                                         int length,
                                         const VideoCaptureFormat& frame_format,
-                                        int rotation,  // Clockwise.
+                                        int clockwise_rotation,
                                         const base::TimeTicks& timestamp) = 0;
 
+    // Captured a 3 planar YUV frame. Planes are possibly disjoint.
+    // |frame_format| must indicate I420.
+    virtual void OnIncomingCapturedYuvData(
+        const uint8* y_data,
+        const uint8* u_data,
+        const uint8* v_data,
+        size_t y_length,

[Pawel Osciak, 2015/03/20 00:56:07]

This is stride?

[mcasas, 2015/03/20 03:01:20]

Done.

Gosh this signature is repeated in 7 places X-|

+        size_t u_length,
+        size_t v_length,
+        const VideoCaptureFormat& frame_format,
+        int clockwise_rotation,
+        const base::TimeTicks& timestamp) = 0;
+
     // Reserve an output buffer into which contents can be captured directly.
     // The returned Buffer will always be allocated with a memory size suitable
     // for holding a packed video frame with pixels of |format| format, of