Add VDA supported profile to GPUInfo.

content/common/gpu/media/v4l2_slice_video_decode_accelerator.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <fcntl.h>
 #include <linux/videodev2.h>
 #include <poll.h>
 #include <sys/eventfd.h>
 #include <sys/ioctl.h>
 #include <sys/mman.h>
@@ skipping 2459 matching lines @@
   DCHECK(decoder_thread_proxy_->BelongsToCurrentThread());
   DCHECK_GT(picture_clearing_count_, 0);
   picture_clearing_count_--;
   SendPictureReady();
 }
 
 bool V4L2SliceVideoDecodeAccelerator::CanDecodeOnIOThread() {
   return true;
 }
 
+// static
+std::vector<media::VideoDecodeAccelerator::SupportedProfile>
+V4L2SliceVideoDecodeAccelerator::GetSupportedProfiles() {
+  std::vector<SupportedProfile> profiles;
+  scoped_refptr<V4L2Device> device = V4L2Device::Create(V4L2Device::kDecoder);
+  if (!device)
+    return profiles;
+
+  SupportedProfile profile;
+  profile.min_resolution.SetSize(16, 16);
+  // NOTE: additional autodetection logic may require updating input buffer size
+  // selection.
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kIgnoreResolutionLimitsForAcceleratedVideoDecode))
+    profile.max_resolution.SetSize(4096, 2160);
+  else
+    profile.max_resolution.SetSize(1920, 1088);
+
+  v4l2_fmtdesc fmtdesc;
+  memset(&fmtdesc, 0, sizeof(fmtdesc));
+  fmtdesc.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+  for (; device->Ioctl(VIDIOC_ENUM_FMT, &fmtdesc) == 0; ++fmtdesc.index) {
+    switch (fmtdesc.pixelformat) {
+      case V4L2_PIX_FMT_H264_SLICE:
+        profile.profile = media::H264PROFILE_MAIN;

[Pawel Osciak, 2015/03/26 08:36:40]

We need more, at least:
H264PROFILE_BASELINE
H264PROFILE_MAIN
H264PROFILE_HIGH

[henryhsu_tw, 2015/03/26 09:38:34]

Done.

+        profiles.push_back(profile);
+        break;
+      case V4L2_PIX_FMT_VP8_FRAME:
+        profile.profile = media::VP8PROFILE_ANY;
+        profiles.push_back(profile);
+        break;
+    }
+  }
+
+  return profiles;
+}
+
 }  // namespace content