9.1/sources/gst-plugins/gst-nvmultistream2/gstnvtimesynch.h

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2021-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef __GST_NVTIMESYNC_H__
#define __GST_NVTIMESYNC_H__
 
#include <gst/gst.h>
#include "nvstreammux.h"
#include "nvstreammux_batch.h"
#include "nvstreammux_pads.h"
#include <unordered_map>
#include <mutex>
 
class NvTimeSync : public ISynchronizeBuffer
{
 
    public:
    NvTimeSync(GstElement* el)
        : plugin(el), pipelineLatency(0), upstreamLatency(0),
          minFpsDuration(0),
          segments(), mutex()
    {}
 
    
    BUFFER_TS_STATUS get_synch_info(BufferWrapper* buffer);
    void removing_old_buffer(BufferWrapper* buffer);
 
    void SetPipelineLatency(GstClockTime latency);
 
    void SetUpstreamLatency(GstClockTime latency);
 
    GstClockTime GetUpstreamLatency();
 
    GstClockTime GetCurrentRunningTime();
 
    void SetSegment(unsigned int stream_id, const GstSegment* segment);
 
    void SetOperatingMinFpsDuration(NanoSecondsType min_fps_dur);
 
    NanoSecondsType get_buffer_earlyby_time();
 
    
    uint64_t GetBufferRunningTime(uint64_t pts, unsigned int stream_id);
 
    private:
    GstElement* plugin;
    GstClockTime pipelineLatency;
    GstClockTime upstreamLatency;
    GstClockTime minFpsDuration;
    GstClockTime bufferWasEarlyByTime;
    std::unordered_map<unsigned int, GstSegment*> segments;
    std::mutex              mutex;
};
 
 
#endif