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/*
* Copyright (c) 2011 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.
*/
#ifndef WEBRTC_MODULES_VIDEO_CODING_MAIN_SOURCE_RECEIVER_H_
#define WEBRTC_MODULES_VIDEO_CODING_MAIN_SOURCE_RECEIVER_H_
#include "webrtc/modules/video_coding/main/source/jitter_buffer.h"
#include "webrtc/modules/video_coding/main/source/packet.h"
#include "webrtc/modules/video_coding/main/source/timing.h"
#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
#include "webrtc/modules/video_coding/main/interface/video_coding.h"
#include "webrtc/modules/video_coding/main/interface/video_coding_defines.h"
namespace webrtc {
class Clock;
class VCMEncodedFrame;
enum VCMNackStatus {
kNackOk,
kNackKeyFrameRequest
};
enum VCMReceiverState {
kReceiving,
kPassive,
kWaitForPrimaryDecode
};
class VCMReceiver {
public:
VCMReceiver(VCMTiming* timing,
Clock* clock,
EventFactory* event_factory,
bool master);
~VCMReceiver();
void Reset();
int32_t Initialize();
void UpdateRtt(uint32_t rtt);
int32_t InsertPacket(const VCMPacket& packet,
uint16_t frame_width,
uint16_t frame_height);
VCMEncodedFrame* FrameForDecoding(uint16_t max_wait_time_ms,
int64_t& next_render_time_ms,
bool render_timing = true);
void ReleaseFrame(VCMEncodedFrame* frame);
void ReceiveStatistics(uint32_t* bitrate, uint32_t* framerate);
uint32_t DiscardedPackets() const;
// NACK.
void SetNackMode(VCMNackMode nackMode,
int low_rtt_nack_threshold_ms,
int high_rtt_nack_threshold_ms);
void SetNackSettings(size_t max_nack_list_size,
int max_packet_age_to_nack,
int max_incomplete_time_ms);
VCMNackMode NackMode() const;
VCMNackStatus NackList(uint16_t* nackList, uint16_t size,
uint16_t* nack_list_length);
VCMReceiverState State() const;
// Receiver video delay.
int SetMinReceiverDelay(int desired_delay_ms);
// Decoding with errors.
void SetDecodeErrorMode(VCMDecodeErrorMode decode_error_mode);
VCMDecodeErrorMode DecodeErrorMode() const;
// Returns size in time (milliseconds) of complete continuous frames in the
// jitter buffer. The render time is estimated based on the render delay at
// the time this function is called.
int RenderBufferSizeMs();
void RegisterStatsCallback(VCMReceiveStatisticsCallback* callback);
private:
static int32_t GenerateReceiverId();
CriticalSectionWrapper* crit_sect_;
Clock* clock_;
VCMJitterBuffer jitter_buffer_;
VCMTiming* timing_;
scoped_ptr<EventWrapper> render_wait_event_;
VCMReceiverState state_;
int max_video_delay_ms_;
static int32_t receiver_id_counter_;
};
} // namespace webrtc
#endif // WEBRTC_MODULES_VIDEO_CODING_MAIN_SOURCE_RECEIVER_H_
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