MJPEG acceleration for video capture using VAAPI

media/video/capture/linux/video_capture_device_linux.cc

Index: media/video/capture/linux/video_capture_device_linux.cc
diff --git a/media/video/capture/linux/video_capture_device_linux.cc b/media/video/capture/linux/video_capture_device_linux.cc
index 60d8f77d55cfe0497fe3835cdfe76f6016ff037a..99eae83582cb3afeab4a67c46676865c19b3a278 100644
--- a/media/video/capture/linux/video_capture_device_linux.cc
+++ b/media/video/capture/linux/video_capture_device_linux.cc
@@ -325,6 +325,7 @@ void VideoCaptureDeviceLinux::V4L2CaptureDelegate::AllocateAndStart(
     // Now check if the device is able to accept a capture framerate set.
     if (streamparm.parm.capture.capability & V4L2_CAP_TIMEPERFRAME) {
       // |frame_rate| is float, approximate by a fraction.
+      LOG(ERROR) << " frame_rate = " << frame_rate;
       streamparm.parm.capture.timeperframe.numerator =
           media::kFrameRatePrecision;
       streamparm.parm.capture.timeperframe.denominator = (frame_rate) ?
@@ -339,6 +340,9 @@ void VideoCaptureDeviceLinux::V4L2CaptureDelegate::AllocateAndStart(
       DVLOG(2) << "Actual camera driverframerate: "
                << streamparm.parm.capture.timeperframe.denominator << "/"
                << streamparm.parm.capture.timeperframe.numerator;
+      LOG(ERROR) << "Actual camera driverframerate: "
+               << streamparm.parm.capture.timeperframe.denominator << "/"
+               << streamparm.parm.capture.timeperframe.numerator;
     }
   }
   // TODO(mcasas): what should be done if the camera driver does not allow
@@ -408,6 +412,7 @@ void VideoCaptureDeviceLinux::V4L2CaptureDelegate::SetRotation(int rotation) {
 }
 
 void VideoCaptureDeviceLinux::V4L2CaptureDelegate::DoCapture() {
+  DVLOG(3) << __func__;
   DCHECK(v4l2_task_runner_->BelongsToCurrentThread());
   if (!is_capturing_)
     return;