Allow to use {FFmpeg/Vpx}VideoDecoder from a UtilityProcess

media/filters/vpx_video_decoder.cc

 // Copyright (c) 2012 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 "media/filters/vpx_video_decoder.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 17 matching lines @@
 #include "base/threading/thread.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/memory_allocator_dump.h"
 #include "base/trace_event/memory_dump_manager.h"
 #include "base/trace_event/memory_dump_provider.h"
 #include "base/trace_event/process_memory_dump.h"
 #include "base/trace_event/trace_event.h"
 #include "media/base/bind_to_current_loop.h"
 #include "media/base/decoder_buffer.h"
 #include "media/base/media_switches.h"
+#include "media/base/video_frame_provider.h"
 
 // Include libvpx header files.
 // VPX_CODEC_DISABLE_COMPAT excludes parts of the libvpx API that provide
 // backwards compatibility for legacy applications using the library.
 #define VPX_CODEC_DISABLE_COMPAT 1
 extern "C" {
 #include "third_party/libvpx/source/libvpx/vpx/vp8dx.h"
 #include "third_party/libvpx/source/libvpx/vpx/vpx_decoder.h"
 #include "third_party/libvpx/source/libvpx/vpx/vpx_frame_buffer.h"
 }
@@ skipping 286 matching lines @@
 void VpxVideoDecoder::MemoryPool::OnVideoFrameDestroyed(
     VP9FrameBuffer* frame_buffer) {
   --frame_buffer->ref_cnt;
 }
 
 VpxVideoDecoder::VpxVideoDecoder()
     : state_(kUninitialized), vpx_codec_(nullptr), vpx_codec_alpha_(nullptr) {
   thread_checker_.DetachFromThread();
 }
 
+VpxVideoDecoder::VpxVideoDecoder(
+    std::unique_ptr<VideoFrameProvider> video_frame_provider)
+    : state_(kUninitialized),
+      vpx_codec_(nullptr),
+      vpx_codec_alpha_(nullptr),
+      frame_pool_(std::move(video_frame_provider)) {
+  thread_checker_.DetachFromThread();
+}
+
 VpxVideoDecoder::~VpxVideoDecoder() {
   DCHECK(thread_checker_.CalledOnValidThread());
   CloseDecoder();
   // Ensure CloseDecoder() released the offload thread.
   DCHECK(!offload_task_runner_);
 }
 
 std::string VpxVideoDecoder::GetDisplayName() const {
   return "VpxVideoDecoder";
 }
@@ skipping 493 matching lines @@
       (*video_frame)->visible_data(VideoFrame::kUPlane),
       (*video_frame)->stride(VideoFrame::kUPlane),
       (*video_frame)->visible_data(VideoFrame::kVPlane),
       (*video_frame)->stride(VideoFrame::kVPlane), coded_size.width(),
       coded_size.height());
 
   return true;
 }
 
 }  // namespace media