Cast: Reshuffle files under media/cast

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;
-    if (is_key_frame_)
-      DCHECK_EQ(rtp_header.frame_id, rtp_header.reference_frame_id);
-    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::AssembleEncodedFrame(transport::EncodedFrame* frame) const {
-  if (!Complete())
-    return false;
-
-  // Frame is complete -> construct.
-  if (is_key_frame_)
-    frame->dependency = transport::EncodedFrame::KEY;
-  else if (frame_id_ == last_referenced_frame_id_)
-    frame->dependency = transport::EncodedFrame::INDEPENDENT;
-  else
-    frame->dependency = transport::EncodedFrame::DEPENDENT;
-  frame->frame_id = frame_id_;
-  frame->referenced_frame_id = last_referenced_frame_id_;
-  frame->rtp_timestamp = rtp_timestamp_;
-
-  // Build the data vector.
-  frame->data.clear();
-  frame->data.reserve(total_data_size_);
-  PacketMap::const_iterator it;
-  for (it = packets_.begin(); it != packets_.end(); ++it)
-    frame->data.insert(frame->data.end(), it->second.begin(), it->second.end());
-  return true;
-}
-
-}  // namespace cast
-}  // namespace media