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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "media/cast/framer/framer.h" | 5 #include "media/cast/framer/framer.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 | 8 |
| 9 namespace media { | 9 namespace media { |
| 10 namespace cast { | 10 namespace cast { |
| 11 | 11 |
| 12 typedef FrameList::const_iterator ConstFrameIterator; | 12 typedef FrameList::const_iterator ConstFrameIterator; |
| 13 | 13 |
| 14 Framer::Framer(base::TickClock* clock, | 14 Framer::Framer(base::TickClock* clock, |
| 15 RtpPayloadFeedback* incoming_payload_feedback, | 15 RtpPayloadFeedback* incoming_payload_feedback, |
| 16 uint32 ssrc, | 16 uint32 ssrc, |
| 17 bool decoder_faster_than_max_frame_rate, | 17 bool decoder_faster_than_max_frame_rate, |
| 18 int max_unacked_frames) | 18 int max_unacked_frames) |
| 19 : decoder_faster_than_max_frame_rate_(decoder_faster_than_max_frame_rate), | 19 : decoder_faster_than_max_frame_rate_(decoder_faster_than_max_frame_rate), |
| 20 cast_msg_builder_(new CastMessageBuilder(clock, incoming_payload_feedback, | 20 cast_msg_builder_( |
| 21 &frame_id_map_, ssrc, decoder_faster_than_max_frame_rate, | 21 new CastMessageBuilder(clock, |
| 22 max_unacked_frames)) { | 22 incoming_payload_feedback, |
| 23 &frame_id_map_, |
| 24 ssrc, |
| 25 decoder_faster_than_max_frame_rate, |
| 26 max_unacked_frames)) { |
| 23 DCHECK(incoming_payload_feedback) << "Invalid argument"; | 27 DCHECK(incoming_payload_feedback) << "Invalid argument"; |
| 24 } | 28 } |
| 25 | 29 |
| 26 Framer::~Framer() {} | 30 Framer::~Framer() {} |
| 27 | 31 |
| 28 bool Framer::InsertPacket(const uint8* payload_data, | 32 bool Framer::InsertPacket(const uint8* payload_data, |
| 29 size_t payload_size, | 33 size_t payload_size, |
| 30 const RtpCastHeader& rtp_header, | 34 const RtpCastHeader& rtp_header, |
| 31 bool* duplicate) { | 35 bool* duplicate) { |
| 32 *duplicate = false; | 36 *duplicate = false; |
| (...skipping 42 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 75 *next_frame = true; | 79 *next_frame = true; |
| 76 } else { | 80 } else { |
| 77 if (!frame_id_map_.NextAudioFrameAllowingMissingFrames(&frame_id)) { | 81 if (!frame_id_map_.NextAudioFrameAllowingMissingFrames(&frame_id)) { |
| 78 return false; | 82 return false; |
| 79 } | 83 } |
| 80 *next_frame = false; | 84 *next_frame = false; |
| 81 } | 85 } |
| 82 | 86 |
| 83 ConstFrameIterator it = frames_.find(frame_id); | 87 ConstFrameIterator it = frames_.find(frame_id); |
| 84 DCHECK(it != frames_.end()); | 88 DCHECK(it != frames_.end()); |
| 85 if (it == frames_.end()) return false; | 89 if (it == frames_.end()) |
| 90 return false; |
| 86 | 91 |
| 87 return it->second->GetEncodedAudioFrame(audio_frame, rtp_timestamp); | 92 return it->second->GetEncodedAudioFrame(audio_frame, rtp_timestamp); |
| 88 } | 93 } |
| 89 | 94 |
| 90 // This does not release the frame. | 95 // This does not release the frame. |
| 91 bool Framer::GetEncodedVideoFrame(transport::EncodedVideoFrame* video_frame, | 96 bool Framer::GetEncodedVideoFrame(transport::EncodedVideoFrame* video_frame, |
| 92 uint32* rtp_timestamp, | 97 uint32* rtp_timestamp, |
| 93 bool* next_frame) { | 98 bool* next_frame) { |
| 94 uint32 frame_id; | 99 uint32 frame_id; |
| 95 // Find frame id. | 100 // Find frame id. |
| 96 if (frame_id_map_.NextContinuousFrame(&frame_id)) { | 101 if (frame_id_map_.NextContinuousFrame(&frame_id)) { |
| 97 // We have our next frame. | 102 // We have our next frame. |
| 98 *next_frame = true; | 103 *next_frame = true; |
| 99 } else { | 104 } else { |
| 100 // Check if we can skip frames when our decoder is too slow. | 105 // Check if we can skip frames when our decoder is too slow. |
| 101 if (!decoder_faster_than_max_frame_rate_) return false; | 106 if (!decoder_faster_than_max_frame_rate_) |
| 107 return false; |
| 102 | 108 |
| 103 if (!frame_id_map_.NextVideoFrameAllowingSkippingFrames(&frame_id)) { | 109 if (!frame_id_map_.NextVideoFrameAllowingSkippingFrames(&frame_id)) { |
| 104 return false; | 110 return false; |
| 105 } | 111 } |
| 106 *next_frame = false; | 112 *next_frame = false; |
| 107 } | 113 } |
| 108 | 114 |
| 109 ConstFrameIterator it = frames_.find(frame_id); | 115 ConstFrameIterator it = frames_.find(frame_id); |
| 110 DCHECK(it != frames_.end()); | 116 DCHECK(it != frames_.end()); |
| 111 if (it == frames_.end()) return false; | 117 if (it == frames_.end()) |
| 118 return false; |
| 112 | 119 |
| 113 return it->second->GetEncodedVideoFrame(video_frame, rtp_timestamp); | 120 return it->second->GetEncodedVideoFrame(video_frame, rtp_timestamp); |
| 114 } | 121 } |
| 115 | 122 |
| 116 void Framer::Reset() { | 123 void Framer::Reset() { |
| 117 frame_id_map_.Clear(); | 124 frame_id_map_.Clear(); |
| 118 frames_.clear(); | 125 frames_.clear(); |
| 119 cast_msg_builder_->Reset(); | 126 cast_msg_builder_->Reset(); |
| 120 } | 127 } |
| 121 | 128 |
| 122 void Framer::ReleaseFrame(uint32 frame_id) { | 129 void Framer::ReleaseFrame(uint32 frame_id) { |
| 123 frame_id_map_.RemoveOldFrames(frame_id); | 130 frame_id_map_.RemoveOldFrames(frame_id); |
| 124 frames_.erase(frame_id); | 131 frames_.erase(frame_id); |
| 125 | 132 |
| 126 // We have a frame - remove all frames with lower frame id. | 133 // We have a frame - remove all frames with lower frame id. |
| 127 bool skipped_old_frame = false; | 134 bool skipped_old_frame = false; |
| 128 FrameList::iterator it; | 135 FrameList::iterator it; |
| 129 for (it = frames_.begin(); it != frames_.end(); ) { | 136 for (it = frames_.begin(); it != frames_.end();) { |
| 130 if (IsOlderFrameId(it->first, frame_id)) { | 137 if (IsOlderFrameId(it->first, frame_id)) { |
| 131 frames_.erase(it++); | 138 frames_.erase(it++); |
| 132 skipped_old_frame = true; | 139 skipped_old_frame = true; |
| 133 } else { | 140 } else { |
| 134 ++it; | 141 ++it; |
| 135 } | 142 } |
| 136 } | 143 } |
| 137 if (skipped_old_frame) { | 144 if (skipped_old_frame) { |
| 138 cast_msg_builder_->UpdateCastMessage(); | 145 cast_msg_builder_->UpdateCastMessage(); |
| 139 } | 146 } |
| 140 } | 147 } |
| 141 | 148 |
| 142 bool Framer::TimeToSendNextCastMessage(base::TimeTicks* time_to_send) { | 149 bool Framer::TimeToSendNextCastMessage(base::TimeTicks* time_to_send) { |
| 143 return cast_msg_builder_->TimeToSendNextCastMessage(time_to_send); | 150 return cast_msg_builder_->TimeToSendNextCastMessage(time_to_send); |
| 144 } | 151 } |
| 145 | 152 |
| 146 void Framer::SendCastMessage() { | 153 void Framer::SendCastMessage() { cast_msg_builder_->UpdateCastMessage(); } |
| 147 cast_msg_builder_->UpdateCastMessage(); | |
| 148 } | |
| 149 | 154 |
| 150 } // namespace cast | 155 } // namespace cast |
| 151 } // namespace media | 156 } // namespace media |
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