Plumb decoded video pixel format from GPU process to renderer.

chrome/gpu/arc_gpu_video_decode_accelerator.cc

 // Copyright 2016 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 "chrome/gpu/arc_gpu_video_decode_accelerator.h"
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/numerics/safe_math.h"
 #include "base/run_loop.h"
@@ skipping 286 matching lines @@
   DCHECK(thread_checker_.CalledOnValidThread());
   if (!vda_) {
     DLOG(ERROR) << "VDA not initialized";
     return;
   }
   vda_->Flush();
 }
 
 void ArcGpuVideoDecodeAccelerator::ProvidePictureBuffers(
     uint32_t requested_num_of_buffers,
+    media::VideoPixelFormat output_pixel_format,
     uint32_t textures_per_buffer,
     const gfx::Size& dimensions,
     uint32_t texture_target) {
   DVLOG(5) << "ProvidePictureBuffers("
            << "requested_num_of_buffers=" << requested_num_of_buffers
            << ", dimensions=" << dimensions.ToString() << ")";
   DCHECK(thread_checker_.CalledOnValidThread());
   coded_size_ = dimensions;
-  output_pixel_format_ = vda_->GetOutputFormat();
+  if ((output_pixel_format_ != media::PIXEL_FORMAT_UNKNOWN) &&
+      (output_pixel_format_ != output_pixel_format)) {
+    arc_client_->OnError(PLATFORM_FAILURE);
+    return;
+  }
+  output_pixel_format_ = output_pixel_format;
 
   VideoFormat video_format;
   switch (output_pixel_format_) {
     case media::PIXEL_FORMAT_I420:
     case media::PIXEL_FORMAT_YV12:
     case media::PIXEL_FORMAT_NV12:
     case media::PIXEL_FORMAT_NV21:
       // HAL_PIXEL_FORMAT_YCbCr_420_888 is the flexible pixel format in Android
       // which handles all 420 formats, with both orderings of chroma (CbCr and
       // CrCb) as well as planar and semi-planar layouts.
@@ skipping 134 matching lines @@
       }
       return true;
     default:
       DLOG(ERROR) << "Invalid port: " << port;
       return false;
   }
 }
 
 }  // namespace arc
 }  // namespace chromeos