bytedeco/javacv

how can i insert file stream on the fly use ffmpegFrameRecord

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#2,098 opened on Sep 14, 2023

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Description

the background is i use javacv ffmpeg to push some file to rtmp address, after i start a FFmpegFrameRecord record loop, i need insert one file when the previous file is push over, how can i do this use javacv; in ffmpeg command, i try "ffmpeg -re -f concat -i "list1.txt" -c:v libx264 -c:a aac -f flv "rtmp://***" and in "list1.txt",i write ffconcat、 file list and another file "list2.txt", and in file list2.txt ,i list some file and "list1.txt"

Contributor guide

Research direction
Investigate how to dynamically add files to an FFmpegFrameRecorder loop. Look into using FFmpeg's concat demuxer with dynamic file list updates or implementing a custom InputStream that blocks until the next file is available. Check javacv source code for examples like FFmpegFrameGrabber with custom IO.
Tech stack
java
Domain
backendapi
Issue type
Research
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.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Needs investigation
Prerequisites
JavaFFmpeg basicsjavacv basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40