HW Video: Make media::VideoFrame handle the sync point of the compositor as well as webgl

media/base/video_frame.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/base/video_frame.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 391 matching lines @@
                        const gfx::Rect& visible_rect,
                        const gfx::Size& natural_size,
                        base::TimeDelta timestamp,
                        bool end_of_stream)
     : format_(format),
       coded_size_(coded_size),
       visible_rect_(visible_rect),
       natural_size_(natural_size),
       shared_memory_handle_(base::SharedMemory::NULLHandle()),
       timestamp_(timestamp),
+      release_sync_point_(0),
       end_of_stream_(end_of_stream) {
   memset(&strides_, 0, sizeof(strides_));
   memset(&data_, 0, sizeof(data_));
 }
 
 VideoFrame::~VideoFrame() {
   if (!mailbox_holder_release_cb_.is_null()) {
+    {
+      base::AutoLock locker(release_sync_point_lock_);
+      if (release_sync_point_)
+        mailbox_holder_->sync_point = release_sync_point_;
+    }
     base::ResetAndReturn(&mailbox_holder_release_cb_)
         .Run(mailbox_holder_.Pass());
   }
   if (!no_longer_needed_cb_.is_null())
     base::ResetAndReturn(&no_longer_needed_cb_).Run();
 }
 
 bool VideoFrame::IsValidPlane(size_t plane) const {
   return (plane < NumPlanes(format_));
 }
@@ skipping 62 matching lines @@
 
 gpu::MailboxHolder* VideoFrame::mailbox_holder() const {
   DCHECK_EQ(format_, NATIVE_TEXTURE);
   return mailbox_holder_.get();
 }
 
 base::SharedMemoryHandle VideoFrame::shared_memory_handle() const {
   return shared_memory_handle_;
 }
 
+void VideoFrame::SetReleaseSyncPoint(uint32 sync_point) {
+  DCHECK_EQ(format_, NATIVE_TEXTURE);
+  base::AutoLock locker(release_sync_point_lock_);
+  release_sync_point_ = sync_point;
+}
+
 void VideoFrame::HashFrameForTesting(base::MD5Context* context) {
   for (int plane = 0; plane < kMaxPlanes; ++plane) {
     if (!IsValidPlane(plane))
       break;
     for (int row = 0; row < rows(plane); ++row) {
       base::MD5Update(context, base::StringPiece(
           reinterpret_cast<char*>(data(plane) + stride(plane) * row),
           row_bytes(plane)));
     }
   }
 }
 
 }  // namespace media