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/*
* Copyright (c) 2015 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 VIDEO_PAYLOAD_ROUTER_H_
#define VIDEO_PAYLOAD_ROUTER_H_
#include <map>
#include <vector>
#include "api/video_codecs/video_encoder.h"
#include "common_types.h" // NOLINT(build/include)
#include "rtc_base/constructormagic.h"
#include "rtc_base/criticalsection.h"
#include "rtc_base/thread_annotations.h"
namespace webrtc {
class RTPFragmentationHeader;
class RtpRtcp;
struct RTPVideoHeader;
// PayloadRouter routes outgoing data to the correct sending RTP module, based
// on the simulcast layer in RTPVideoHeader.
class PayloadRouter : public EncodedImageCallback {
public:
// Rtp modules are assumed to be sorted in simulcast index order.
PayloadRouter(const std::vector<RtpRtcp*>& rtp_modules,
const std::vector<uint32_t>& ssrcs,
int payload_type,
const std::map<uint32_t, RtpPayloadState>& states);
~PayloadRouter();
// PayloadRouter will only route packets if being active, all packets will be
// dropped otherwise.
void SetActive(bool active);
bool IsActive();
std::map<uint32_t, RtpPayloadState> GetRtpPayloadStates() const;
// Implements EncodedImageCallback.
// Returns 0 if the packet was routed / sent, -1 otherwise.
EncodedImageCallback::Result OnEncodedImage(
const EncodedImage& encoded_image,
const CodecSpecificInfo* codec_specific_info,
const RTPFragmentationHeader* fragmentation) override;
void OnBitrateAllocationUpdated(const BitrateAllocation& bitrate);
private:
class RtpPayloadParams;
void UpdateModuleSendingState() RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_);
rtc::CriticalSection crit_;
bool active_ RTC_GUARDED_BY(crit_);
// Rtp modules are assumed to be sorted in simulcast index order. Not owned.
const std::vector<RtpRtcp*> rtp_modules_;
const int payload_type_;
const bool forced_fallback_enabled_;
std::vector<RtpPayloadParams> params_ RTC_GUARDED_BY(crit_);
RTC_DISALLOW_COPY_AND_ASSIGN(PayloadRouter);
};
} // namespace webrtc
#endif // VIDEO_PAYLOAD_ROUTER_H_
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