Pass GpuMemoryBuffer backed VideoFrame from browser to renderer processes

content/browser/renderer_host/media/video_capture_device_client.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 "content/browser/renderer_host/media/video_capture_device_client.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 103 matching lines @@
 class AutoReleaseBuffer : public media::VideoCaptureDevice::Client::Buffer {
  public:
   AutoReleaseBuffer(const scoped_refptr<VideoCaptureBufferPool>& pool,
                     int buffer_id)
       : id_(buffer_id),
         pool_(pool),
         buffer_handle_(pool_->GetBufferHandle(buffer_id).Pass()) {
     DCHECK(pool_.get());
   }
   int id() const override { return id_; }
-  size_t size() const override { return buffer_handle_->size(); }
+  gfx::Size dimensions() const override { return buffer_handle_->dimensions(); }
+  size_t mapped_size() const override { return buffer_handle_->mapped_size(); }
   void* data(int plane) override { return buffer_handle_->data(plane); }
   ClientBuffer AsClientBuffer(int plane) override {
     return buffer_handle_->AsClientBuffer(plane);
   }
 #if defined(OS_POSIX)
   base::FileDescriptor AsPlatformFile() override {
     return buffer_handle_->AsPlatformFile();
   }
 #endif
 
@@ skipping 212 matching lines @@
       break;
     case media::VIDEO_CAPTURE_PIXEL_FORMAT_MJPEG:
       origin_colorspace = libyuv::FOURCC_MJPG;
       break;
     default:
       NOTREACHED();
   }
 
   // The input |length| can be greater than the required buffer size because of
   // paddings and/or alignments, but it cannot be smaller.
-  DCHECK_GE(static_cast<size_t>(length), frame_format.ImageAllocationSize());
+//  DCHECK_GE(static_cast<size_t>(length), frame_format.ImageAllocationSize());

[reveman, 2015/08/26 11:54:04]

why comment this out?

[emircan, 2015/08/26 21:23:11]

My bad, leftover from crbug.com/520740.

 
   if (external_jpeg_decoder_) {
     const VideoCaptureGpuJpegDecoder::STATUS status =
         external_jpeg_decoder_->GetStatus();
     if (status == VideoCaptureGpuJpegDecoder::FAILED) {
       external_jpeg_decoder_.reset();
     } else if (status == VideoCaptureGpuJpegDecoder::INIT_PASSED &&
         frame_format.pixel_format == media::VIDEO_CAPTURE_PIXEL_FORMAT_MJPEG &&
         rotation == 0 && !flip) {
       external_jpeg_decoder_->DecodeCapturedData(data, length, frame_format,
@@ skipping 399 matching lines @@
 void VideoCaptureDeviceClient::TextureWrapHelper::OnError(
     const std::string& message) {
   DCHECK(capture_task_runner_->BelongsToCurrentThread());
   DLOG(ERROR) << message;
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&VideoCaptureController::DoErrorOnIOThread, controller_));
 }
 
 }  // namespace content