V4L2VDA: use YV12 as output format if processor supports it.

media/gpu/v4l2_device.cc

 // Copyright 2014 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 <libdrm/drm_fourcc.h>
 #include <linux/videodev2.h>
 #include <string.h>
 
 #include "base/numerics/safe_conversions.h"
 #include "build/build_config.h"
@@ skipping 33 matching lines @@
     case V4L2_PIX_FMT_NV12M:
       return PIXEL_FORMAT_NV12;
 
     case V4L2_PIX_FMT_MT21:
       return PIXEL_FORMAT_MT21;
 
     case V4L2_PIX_FMT_YUV420:
     case V4L2_PIX_FMT_YUV420M:
       return PIXEL_FORMAT_I420;
 
+    case V4L2_PIX_FMT_YVU420:
+      return PIXEL_FORMAT_YV12;
+
     case V4L2_PIX_FMT_RGB32:
       return PIXEL_FORMAT_ARGB;
 
     default:
       LOG(FATAL) << "Add more cases as needed";
       return PIXEL_FORMAT_UNKNOWN;
   }
 }
 
 // static
 uint32_t V4L2Device::VideoPixelFormatToV4L2PixFmt(VideoPixelFormat format) {
   switch (format) {
     case PIXEL_FORMAT_NV12:
       return V4L2_PIX_FMT_NV12M;
 
     case PIXEL_FORMAT_MT21:
       return V4L2_PIX_FMT_MT21;
 
     case PIXEL_FORMAT_I420:
       return V4L2_PIX_FMT_YUV420M;
 
+    case PIXEL_FORMAT_YV12:
+      return V4L2_PIX_FMT_YVU420;
+
     default:
       LOG(FATAL) << "Add more cases as needed";
       return 0;
   }
 }
 
 // static
 uint32_t V4L2Device::VideoCodecProfileToV4L2PixFmt(VideoCodecProfile profile,
                                                    bool slice_based) {
   if (profile >= H264PROFILE_MIN && profile <= H264PROFILE_MAX) {
@@ skipping 18 matching lines @@
 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_YVU420:
+      return DRM_FORMAT_YVU420;
+
     case V4L2_PIX_FMT_RGB32:
       return DRM_FORMAT_ARGB8888;
 
     default:
       DVLOG(1) << "Add more cases as needed";
       return 0;
   }
 }
 
 // static
@@ skipping 183 matching lines @@
   const auto iter = std::find_if(
       supported_profiles.begin(), supported_profiles.end(),
       [profile](const VideoDecodeAccelerator::SupportedProfile& p) {
         return profile == p.profile;
       });
 
   return iter != supported_profiles.end();
 }
 
 }  //  namespace media