Add allocator interface for use by cdm_adapter

media/cdm/cdm_video_frame.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 "media/cdm/cdm_video_frame.h"
+
+#include "base/logging.h"
+#include "media/base/video_frame.h"
+
+namespace media {
+
+CdmVideoFrame::CdmVideoFrame()

[xhwang, 2016/02/11 19:24:13]

Are these implementations exactly the same as VideoFrameImpl?

Maybe we should just rename VideoFrameImpl to CdmVideoFrame and add
CreateVideoFrame(), which will only be used in the CdmAdapter path. Will that
work?

[jrummell, 2016/02/11 22:08:16]

Done (conditionally).

+    : format_(cdm::kUnknownVideoFormat), frame_buffer_(nullptr), timestamp_(0) {
+  for (uint32_t i = 0; i < kMaxPlanes; ++i) {
+    plane_offsets_[i] = 0;
+    strides_[i] = 0;
+  }
+}
+
+CdmVideoFrame::~CdmVideoFrame() {
+  if (frame_buffer_)
+    frame_buffer_->Destroy();
+}
+
+void CdmVideoFrame::SetFormat(cdm::VideoFormat format) {
+  format_ = format;
+}
+
+cdm::VideoFormat CdmVideoFrame::Format() const {
+  return format_;
+}
+
+void CdmVideoFrame::SetSize(cdm::Size size) {
+  size_ = size;
+}
+
+cdm::Size CdmVideoFrame::Size() const {
+  return size_;
+}
+
+void CdmVideoFrame::SetFrameBuffer(cdm::Buffer* frame_buffer) {
+  frame_buffer_ = frame_buffer;
+}
+
+cdm::Buffer* CdmVideoFrame::FrameBuffer() {
+  return frame_buffer_;
+}
+
+void CdmVideoFrame::SetPlaneOffset(cdm::VideoFrame::VideoPlane plane,
+                                   uint32_t offset) {
+  DCHECK(plane < kMaxPlanes);
+  plane_offsets_[plane] = offset;
+}
+
+uint32_t CdmVideoFrame::PlaneOffset(VideoPlane plane) {
+  DCHECK(plane < kMaxPlanes);
+  return plane_offsets_[plane];
+}
+
+void CdmVideoFrame::SetStride(VideoPlane plane, uint32_t stride) {
+  DCHECK(plane < kMaxPlanes);
+  strides_[plane] = stride;
+}
+
+uint32_t CdmVideoFrame::Stride(VideoPlane plane) {
+  DCHECK(plane < kMaxPlanes);
+  return strides_[plane];
+}
+
+void CdmVideoFrame::SetTimestamp(int64_t timestamp) {
+  timestamp_ = timestamp;
+}
+
+int64_t CdmVideoFrame::Timestamp() const {
+  return timestamp_;
+}
+
+}  // namespace media