[Cast] EncodedAudioFrame+EncodedVideoFrame+reference_time --> EncodedFrame

media/cast/framer/frame_buffer.cc

 // Copyright 2013 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/cast/framer/frame_buffer.h"
 
 #include "base/logging.h"
 
 namespace media {
 namespace cast {
 
 FrameBuffer::FrameBuffer()
     : frame_id_(0),
       max_packet_id_(0),
       num_packets_received_(0),
-      is_key_frame_(false),
       total_data_size_(0),
       last_referenced_frame_id_(0),
       packets_() {}
 
 FrameBuffer::~FrameBuffer() {}
 
 void FrameBuffer::InsertPacket(const uint8* payload_data,
                                size_t payload_size,
                                const RtpCastHeader& rtp_header) {
   // Is this the first packet in the frame?
   if (packets_.empty()) {
     frame_id_ = rtp_header.frame_id;
     max_packet_id_ = rtp_header.max_packet_id;
-    is_key_frame_ = rtp_header.is_key_frame;
-    last_referenced_frame_id_ = rtp_header.reference_frame_id;
+    if (rtp_header.is_key_frame) {
+      DCHECK_EQ(rtp_header.frame_id, rtp_header.reference_frame_id);
+      last_referenced_frame_id_ = rtp_header.frame_id;
+    } else {
+      last_referenced_frame_id_ = rtp_header.reference_frame_id;
+    }
     rtp_timestamp_ = rtp_header.rtp_timestamp;
   }
   // Is this the correct frame?
   if (rtp_header.frame_id != frame_id_)
     return;
 
   // Insert every packet only once.
   if (packets_.find(rtp_header.packet_id) != packets_.end()) {
     return;
   }
 
   std::vector<uint8> data;
   std::pair<PacketMap::iterator, bool> retval =
       packets_.insert(make_pair(rtp_header.packet_id, data));
 
   // Insert the packet.
   retval.first->second.resize(payload_size);
   std::copy(
       payload_data, payload_data + payload_size, retval.first->second.begin());
 
   ++num_packets_received_;
   total_data_size_ += payload_size;
 }
 
 bool FrameBuffer::Complete() const {
   return num_packets_received_ - 1 == max_packet_id_;
 }
 
-bool FrameBuffer::GetEncodedAudioFrame(
-    transport::EncodedAudioFrame* audio_frame) const {
+bool FrameBuffer::AssembleEncodedFrame(transport::EncodedFrame* frame) const {
   if (!Complete())
     return false;
 
   // Frame is complete -> construct.
-  audio_frame->frame_id = frame_id_;
-  audio_frame->rtp_timestamp = rtp_timestamp_;
+  frame->frame_id = frame_id_;
+  frame->base_frame_id = last_referenced_frame_id_;
+  frame->rtp_timestamp = rtp_timestamp_;
 
   // Build the data vector.
-  audio_frame->data.clear();
-  audio_frame->data.reserve(total_data_size_);
+  frame->data.clear();
+  frame->data.reserve(total_data_size_);
   PacketMap::const_iterator it;
-  for (it = packets_.begin(); it != packets_.end(); ++it) {
-    audio_frame->data.insert(
-        audio_frame->data.end(), it->second.begin(), it->second.end());
-  }
+  for (it = packets_.begin(); it != packets_.end(); ++it)
+    frame->data.insert(frame->data.end(), it->second.begin(), it->second.end());
   return true;
 }
 
-bool FrameBuffer::GetEncodedVideoFrame(
-    transport::EncodedVideoFrame* video_frame) const {
-  if (!Complete())
-    return false;
-  // Frame is complete -> construct.
-  video_frame->key_frame = is_key_frame_;
-  video_frame->frame_id = frame_id_;
-  video_frame->last_referenced_frame_id = last_referenced_frame_id_;
-  video_frame->rtp_timestamp = rtp_timestamp_;
-
-  // Build the data vector.
-  video_frame->data.clear();
-  video_frame->data.reserve(total_data_size_);
-  PacketMap::const_iterator it;
-  for (it = packets_.begin(); it != packets_.end(); ++it) {
-    video_frame->data.insert(
-        video_frame->data.end(), it->second.begin(), it->second.end());
-  }
-  return true;
-}
-
 }  // namespace cast
 }  // namespace media