Video Color Managament

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 <climits>
 
 #include "base/atomic_sequence_num.h"
@@ skipping 635 matching lines @@
 
 bool VideoFrame::IsMappable() const {
   return IsStorageTypeMappable(storage_type_);
 }
 
 bool VideoFrame::HasTextures() const {
   return !mailbox_holders_[0].mailbox.IsZero();
 }
 
 gfx::ColorSpace VideoFrame::ColorSpace() const {
-  int videoframe_color_space;
-  if (metadata()->GetInteger(media::VideoFrameMetadata::COLOR_SPACE,
-                             &videoframe_color_space)) {
-    switch (videoframe_color_space) {
-      case media::COLOR_SPACE_JPEG:
-        return gfx::ColorSpace::CreateJpeg();
-      case media::COLOR_SPACE_HD_REC709:
-        return gfx::ColorSpace::CreateREC709();
-      case media::COLOR_SPACE_SD_REC601:
-        return gfx::ColorSpace::CreateREC601();
-      default:
-        break;
+  if (color_space_ == gfx::ColorSpace()) {
+    int videoframe_color_space;
+    if (metadata()->GetInteger(media::VideoFrameMetadata::COLOR_SPACE,
+                               &videoframe_color_space)) {
+      switch (videoframe_color_space) {
+        case media::COLOR_SPACE_JPEG:
+          return gfx::ColorSpace::CreateJpeg();
+        case media::COLOR_SPACE_HD_REC709:
+          return gfx::ColorSpace::CreateREC709();
+        case media::COLOR_SPACE_SD_REC601:
+          return gfx::ColorSpace::CreateREC601();
+        default:
+          break;
+      }
     }
   }
-  return gfx::ColorSpace();
+  return color_space_;
+}
+
+void VideoFrame::set_color_space(const gfx::ColorSpace& color_space) {
+  color_space_ = color_space;
 }
 
 int VideoFrame::stride(size_t plane) const {
   DCHECK(IsValidPlane(plane, format_));
   return strides_[plane];
 }
 
 int VideoFrame::row_bytes(size_t plane) const {
   return RowBytes(plane, format_, coded_size_.width());
 }
@@ skipping 467 matching lines @@
   if (zero_initialize_memory)
     memset(data, 0, data_size);
 
   for (size_t plane = 0; plane < NumPlanes(format_); ++plane)
     data_[plane] = data + offset[plane];
 
   AddDestructionObserver(base::Bind(&base::AlignedFree, data));
 }
 
 }  // namespace media