javacv
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Java interface to OpenCV, FFmpeg, and more
Hi, Can you please tell me how to convert org.bytedeco.javacv.Frame to base64 ? I am sorry i am asking here this but i have been searching this for weeks. ```...
public File convertToMp4(File file) throws IOException, FrameGrabber.Exception, FrameRecorder.Exception { FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(file); grabber.start(); FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(file, 0); recorder.setFormat("mp4"); recorder.setFrameRate(grabber.getFrameRate()); recorder.setSampleRate(grabber.getSampleRate()); recorder.setVideoCodec(grabber.getVideoCodec()); recorder.setAudioCodec(grabber.getAudioCodec()); recorder.start(); Frame frame; while...
This is the solution for the issue #2172 The replacement for avfilter solves this issue completely and colors in the output picture matches to the command-line version of ffmpeg
You can see that one thread is blocked in the avformat_open_input method after entering the start() method, causing other threads to be unable to acquire the lock to process all...
The problem I meeting is that I use `ToOrgOpenCvCoreMat` converting frame to mat1. I generate mat2 from mat1. When I try to convert mat2 back to frame, I see all...
I find a way to print the direct memory used by the direct byte buffers and mapped byte buffers: https://stackoverflow.com/questions/20058489/is-there-a-way-to-measure-direct-memory-usage-in-java But this solution can only print direct byte buffers. As...
Could you please advise if it's feasible to implement the functionality of sending RTCP packets at the receiving endpoint of an RTSP stream and simultaneously receiving and displaying RTCP packets...
I have an RTSP playback video that supports variable speed. I'm using JavaCV to process the RTSP and send the video data to a web player. How can I implement...
When I use the following code to transcode videos, I find that the GPU utilization is much lower compared to directly using cmd to call ffmpeg. ```java public boolean convert(String...
I am experiencing an issue where FFmpegFrameRecorder.start() hangs indefinitely when trying to start an RTSP stream. The issue occurs consistently and prevents the stream from being established. Steps to Reproduce:...