Add ToString function for media::VideoCaptureFormat

BUG=409636

Review URL: https://codereview.chromium.org/532533002

Cr-Commit-Position: refs/heads/master@{#293332}

content/renderer/media/media_stream_video_source.cc

@@ -480,13 +480,7 @@ void MediaStreamVideoSource::OnSupportedFormats(
   }
 
   state_ = STARTING;
-  DVLOG(3) << "Starting the capturer with"
-           << " width = " << current_format_.frame_size.width()
-           << " height = " << current_format_.frame_size.height()
-           << " frame rate = " << current_format_.frame_rate
-           << " pixel format = "
-           << media::VideoCaptureFormat::PixelFormatToString(
-               current_format_.pixel_format);
+  DVLOG(3) << "Starting the capturer with " << current_format_.ToString();
 
   media::VideoCaptureParams params;
   params.requested_format = current_format_;

media/video/capture/android/video_capture_device_factory_android.cc

@@ -120,10 +120,7 @@ void VideoCaptureDeviceFactoryAndroid::GetDeviceSupportedFormats(
                                                                   format.obj()),
         pixel_format);
     capture_formats->push_back(capture_format);
-    DVLOG(1) << device.name() << " resolution: "
-        << capture_format.frame_size.ToString() << ", fps: "
-        << capture_format.frame_rate << ", pixel format: "
-        << capture_format.pixel_format;
+    DVLOG(1) << device.name() << " " << capture_format.ToString();
   }
 }
 

media/video/capture/linux/video_capture_device_factory_linux.cc

@@ -175,10 +175,7 @@ void VideoCaptureDeviceFactoryLinux::GetDeviceSupportedFormats(
           break;
         }
         supported_formats->push_back(supported_format);
-        DVLOG(1) << device.name()
-                 << " resolution: " << supported_format.frame_size.ToString()
-                 << ", fps: " << supported_format.frame_rate
-                 << ", pixel format: " << supported_format.pixel_format;
+        DVLOG(1) << device.name() << " " << supported_format.ToString();
         ++frame_interval.index;
       }
       ++frame_size.index;

media/video/capture/mac/video_capture_device_avfoundation_mac.mm

@@ -81,10 +81,7 @@
           frameRate.maxFrameRate,
           pixelFormat);
       formats->push_back(format);
-      DVLOG(2) << name.name() << " resolution: "
-               << format.frame_size.ToString() << ", fps: "
-               << format.frame_rate << ", pixel format: "
-               << format.pixel_format;
+      DVLOG(2) << name.name() << " " << format.ToString();
     }
   }
 

media/video/capture/video_capture_types.cc

@@ -5,6 +5,7 @@
 #include "media/video/capture/video_capture_types.h"
 
 #include "base/logging.h"
+#include "base/strings/stringprintf.h"
 #include "media/base/limits.h"
 
 namespace media {
@@ -30,6 +31,15 @@ bool VideoCaptureFormat::IsValid() const {
          (pixel_format < PIXEL_FORMAT_MAX);
 }
 
+#if !defined(NDEBUG)
+std::string VideoCaptureFormat::ToString() const {
+  return base::StringPrintf("resolution: %s, fps: %f, pixel format: %s",
+                            frame_size.ToString().c_str(),
+                            frame_rate,
+                            PixelFormatToString(pixel_format).c_str());
+}
+#endif
+
 std::string VideoCaptureFormat::PixelFormatToString(VideoPixelFormat format) {
   switch (format) {
   case PIXEL_FORMAT_UNKNOWN:

media/video/capture/video_capture_types.h

@@ -46,6 +46,7 @@ class MEDIA_EXPORT VideoCaptureFormat {
                      float frame_rate,
                      VideoPixelFormat pixel_format);
 
+  std::string ToString() const;
   static std::string PixelFormatToString(VideoPixelFormat format);
 
   // Checks that all values are in the expected range. All limits are specified

media/video/capture/win/video_capture_device_factory_win.cc

@@ -273,9 +273,7 @@ static void GetDeviceSupportedFormatsDirectShow(const Name& device,
           kSecondsToReferenceTime / static_cast<float>(h->AvgTimePerFrame) :
           0.0f;
       formats->push_back(format);
-      DVLOG(1) << device.name() << " resolution: "
-          << format.frame_size.ToString() << ", fps: " << format.frame_rate
-          << ", pixel format: " << format.pixel_format;
+      DVLOG(1) << device.name() << " " << format.ToString();
     }
   }
 }
@@ -336,10 +334,7 @@ static void GetDeviceSupportedFormatsMediaFoundation(
     formats->push_back(capture_format);
     ++stream_index;
 
-    DVLOG(1) << device.name() << " resolution: "
-             << capture_format.frame_size.ToString() << ", fps: "
-             << capture_format.frame_rate << ", pixel format: "
-             << capture_format.pixel_format;
+    DVLOG(1) << device.name() << " " << capture_format.ToString();
   }
 }