bytedeco/javacv

Daley in startup streaming with RTMP

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#862 opened on Dec 20, 2017

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Description

Hello, i'm using FFMPEG to capture webcam and stream it to RTMP nginx server , but i get latency in startup about 4-6 seconds then the client send a stream to server. i use FLV1 codec for video. i use this configurations:

recorder = new FFmpegFrameRecorder( "rtmp://server_ip/application_name/stream_name" , 320 , 240 , 2 );
recorder.setInterleaved(true);
recorder.setVideoBitrate(120000);
recorder.setVideoCodec(avcodec.AV_CODEC_ID_FLV1);
recorder.setFormat("flv");
recorder.setFrameRate(FRAME_RATE);
recorder.setGopSize(GOP_LENGTH_IN_FRAMES);// GOP_LENGTH_IN_FRAMES
recorder.start();

is it normal configurations or i need change the streaming protocol ?

Contributor guide

Research direction
Examine the FFmpeg encoder configuration for initial buffering and latency. Consider using a lower GOP length, enabling low latency flags, or switching to a protocol with lower overhead like SRT or WebRTC.
Tech stack
java
Domain
backendperformance
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaFFmpegRTMP streaming concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50