WIP

modules/video_coding/codecs/vp8/default_temporal_layers.h

 /* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
-*
-*  Use of this source code is governed by a BSD-style license
-*  that can be found in the LICENSE file in the root of the source
-*  tree. An additional intellectual property rights grant can be found
-*  in the file PATENTS.  All contributing project authors may
-*  be found in the AUTHORS file in the root of the source tree.
-*/
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
 /*
-* This file defines classes for doing temporal layers with VP8.
-*/
+ * This file defines classes for doing temporal layers with VP8.
+ */
 #ifndef MODULES_VIDEO_CODING_CODECS_VP8_DEFAULT_TEMPORAL_LAYERS_H_
 #define MODULES_VIDEO_CODING_CODECS_VP8_DEFAULT_TEMPORAL_LAYERS_H_
 
 #include <vector>
 
 #include "modules/video_coding/codecs/vp8/temporal_layers.h"
 
 #include "api/optional.h"
 
 namespace webrtc {
@@ skipping 30 matching lines @@
   const std::vector<unsigned int> temporal_ids_;
   const std::vector<bool> temporal_layer_sync_;
   const std::vector<TemporalLayers::FrameConfig> temporal_pattern_;
 
   uint8_t tl0_pic_idx_;
   uint8_t pattern_idx_;
   bool last_base_layer_sync_;
   rtc::Optional<std::vector<uint32_t>> new_bitrates_kbps_;
 };
 
+class DefaultTemporalLayersChecker : public TemporalLayersChecker {
+ public:
+  DefaultTemporalLayersChecker(int number_of_temporal_layers,
+                               uint8_t initial_tl0_pic_idx);
+  bool CheckOnFrameEncoded(bool frame_is_keyframe,
+                           CodecSpecificInfoVP8& codec_specific,
+                           TemporalLayers::FrameConfig& frame_config) override;
+
+ private:
+  struct BufferState {
+    BufferState()
+        : is_updated_this_cycle(false), is_keyframe(false), pattern_idx(0) {}
+
+    bool is_updated_this_cycle;
+    bool is_keyframe;
+    uint8_t pattern_idx;
+  };
+  const size_t num_layers_;
+  const std::vector<unsigned int> temporal_ids_;
+  const std::vector<std::vector<uint8_t>> temporal_dependencies_;
+  BufferState last_;
+  BufferState arf_;
+  BufferState golden_;
+  uint8_t tl0_pic_idx_;
+  uint8_t pattern_idx_;
+};
+
 }  // namespace webrtc
 #endif  // MODULES_VIDEO_CODING_CODECS_VP8_DEFAULT_TEMPORAL_LAYERS_H_