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/*
* Copyright (c) 2012 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.
*/
#include "modules/video_coding/video_coding_impl.h"
#include <algorithm>
#include <memory>
#include "api/video/encoded_image.h"
#include "modules/video_coding/include/video_codec_interface.h"
#include "modules/video_coding/timing.h"
#include "rtc_base/thread_checker.h"
#include "system_wrappers/include/clock.h"
namespace webrtc {
namespace vcm {
int64_t VCMProcessTimer::Period() const {
return _periodMs;
}
int64_t VCMProcessTimer::TimeUntilProcess() const {
const int64_t time_since_process = _clock->TimeInMilliseconds() - _latestMs;
const int64_t time_until_process = _periodMs - time_since_process;
return std::max<int64_t>(time_until_process, 0);
}
void VCMProcessTimer::Processed() {
_latestMs = _clock->TimeInMilliseconds();
}
} // namespace vcm
namespace {
class VideoCodingModuleImpl : public VideoCodingModule {
public:
explicit VideoCodingModuleImpl(Clock* clock)
: VideoCodingModule(),
timing_(new VCMTiming(clock)),
receiver_(clock, timing_.get()) {}
~VideoCodingModuleImpl() override {}
int64_t TimeUntilNextProcess() override {
int64_t receiver_time = receiver_.TimeUntilNextProcess();
RTC_DCHECK_GE(receiver_time, 0);
return receiver_time;
}
void Process() override { receiver_.Process(); }
int32_t RegisterReceiveCodec(const VideoCodec* receiveCodec,
int32_t numberOfCores,
bool requireKeyFrame) override {
return receiver_.RegisterReceiveCodec(receiveCodec, numberOfCores,
requireKeyFrame);
}
void RegisterExternalDecoder(VideoDecoder* externalDecoder,
uint8_t payloadType) override {
receiver_.RegisterExternalDecoder(externalDecoder, payloadType);
}
int32_t RegisterReceiveCallback(
VCMReceiveCallback* receiveCallback) override {
RTC_DCHECK(construction_thread_.IsCurrent());
return receiver_.RegisterReceiveCallback(receiveCallback);
}
int32_t RegisterFrameTypeCallback(
VCMFrameTypeCallback* frameTypeCallback) override {
return receiver_.RegisterFrameTypeCallback(frameTypeCallback);
}
int32_t RegisterPacketRequestCallback(
VCMPacketRequestCallback* callback) override {
RTC_DCHECK(construction_thread_.IsCurrent());
return receiver_.RegisterPacketRequestCallback(callback);
}
int32_t Decode(uint16_t maxWaitTimeMs) override {
return receiver_.Decode(maxWaitTimeMs);
}
int32_t IncomingPacket(const uint8_t* incomingPayload,
size_t payloadLength,
const RTPHeader& rtp_header,
const RTPVideoHeader& video_header) override {
return receiver_.IncomingPacket(incomingPayload, payloadLength, rtp_header,
video_header);
}
void SetNackSettings(size_t max_nack_list_size,
int max_packet_age_to_nack,
int max_incomplete_time_ms) override {
return receiver_.SetNackSettings(max_nack_list_size, max_packet_age_to_nack,
max_incomplete_time_ms);
}
private:
rtc::ThreadChecker construction_thread_;
const std::unique_ptr<VCMTiming> timing_;
vcm::VideoReceiver receiver_;
};
} // namespace
// DEPRECATED. Create method for current interface, will be removed when the
// new jitter buffer is in place.
VideoCodingModule* VideoCodingModule::Create(Clock* clock) {
RTC_DCHECK(clock);
return new VideoCodingModuleImpl(clock);
}
} // namespace webrtc
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