V4L2VDA: Generalize EGLImage import and query driver for output formats.

content/common/gpu/media/v4l2_video_device.cc

Index: content/common/gpu/media/v4l2_video_device.cc
diff --git a/content/common/gpu/media/v4l2_video_device.cc b/content/common/gpu/media/v4l2_video_device.cc
index 771ea41bed934b353b7fa2626e9944a461abead7..5a05365af8a48d90d3da912a953cf3c70c6b1067 100644
--- a/content/common/gpu/media/v4l2_video_device.cc
+++ b/content/common/gpu/media/v4l2_video_device.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <libdrm/drm_fourcc.h>
 #include <linux/videodev2.h>
 
 #include "base/numerics/safe_conversions.h"
@@ -40,6 +41,9 @@ media::VideoFrame::Format V4L2Device::V4L2PixFmtToVideoFrameFormat(
     case V4L2_PIX_FMT_YUV420M:
       return media::VideoFrame::I420;
 
+    case V4L2_PIX_FMT_RGB32:
+      return media::VideoFrame::ARGB;
+
     default:
       LOG(FATAL) << "Add more cases as needed";
       return media::VideoFrame::UNKNOWN;
@@ -78,6 +82,26 @@ uint32 V4L2Device::VideoCodecProfileToV4L2PixFmt(
 }
 
 // static
+uint32_t V4L2Device::V4L2PixFmtToDrmFormat(uint32_t format) {
+  switch (format) {
+    case V4L2_PIX_FMT_NV12:
+    case V4L2_PIX_FMT_NV12M:
+      return DRM_FORMAT_NV12;
+
+    case V4L2_PIX_FMT_YUV420:
+    case V4L2_PIX_FMT_YUV420M:
+      return DRM_FORMAT_YUV420;
+
+    case V4L2_PIX_FMT_RGB32:
+      return DRM_FORMAT_ARGB8888;
+
+    default:
+      LOG(FATAL) << "Add more cases as needed";
+      return 0;
+  }
+}
+
+// static
 gfx::Size V4L2Device::CodedSizeFromV4L2Format(struct v4l2_format format) {
   gfx::Size coded_size;
   gfx::Size visible_size;