javacv issues

Dependencies check

1

avaCPP Presets is a project providing Java distributions of native C++ libraries. All the actions in the bytedeco/javacpp-presets use the github.event.head_commit.message? parameter in an insecure way. For example, the commit...

jinl2011

enhancement

help wanted

FFmpegFrameRecorder$Exception: avformat_write_header error() error -22: Could not write header (How to fix this, help)

1

public static void video2Webp(String localVideoPath, String localWebpPath) { try(FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(localVideoPath); FFmpegFrameFilter filter = new FFmpegFrameFilter("scale=iw/2:ih/2", grabber.getImageWidth() / 2, grabber.getImageHeight() / 2)) { grabber.start(); filter.setAudioChannels(1); filter.setSampleFormat(grabber.getSampleFormat()); filter.setSampleRate(grabber.getSampleRate()); filter.start();...

ZhangTeng2017

help wanted

question

I used FFmpegFrameGrabber and FFmpegFrameRecorder to record videos of RTSP addresses in mp4 format, but the recorded video would lag when dragging the progress bar, and the video frame would repeat in the last few seconds

2

public class RTSPStreamAndRecordMP4 { private static AtomicBoolean flag = new AtomicBoolean(true); private static long videoTime = 0; static { // 设置日志的级别，高于这个级别的日志不会打印 avutil.av_log_set_level(avutil.AV_LOG_INFO); // 开启日志 FFmpegLogCallback.set(); } public static void main(String[]...

lvzhouzhijun

help wanted

question

png image stream synthesis webm video transparent channel lost

6

I have a png pipeline stream, similar to the one below ``` PipeInputStream pis = new PipeInputStream() grabber = new FFmpegFrameGrabber(pis, 0); grabber.setImageWidth(1920); grabber.setImageHeight(1080); grabber.setFrameRate(25); grabber.setImageMode(FrameGrabber.ImageMode.RAW); grabber.setFormat("png_pipe"); //Why `PixelFormat` is...

jetamie

help wanted

question

JavaFxPlayVideoAndAudio example plays audio out of sync with video

6

I tried running the video player example below but the audio is very out of sync with the video. I tried 2 videos of different formats and both are not...

mrlimbic

enhancement

help wanted

question

Audio and Video not syncing properly when combining multiple cut videos

1

Hi, I have this issue where I first take multiple .mp4 videos, cut them and combine them after. The video comes out fine until the audio part... All videos have...

LukaDimtrijevic

help wanted

question

Rtmp streams are stored as mp4 files

5

Hi，I want to store the rmtp stream as an mp4 file，For example, use the ffmpeg command ：`ffmpeg -i rtmp://xx.com/3573613170/18573613170 -f mp4 -vcodec copy -acodec copy C:\Users\lhd\Desktop\2.mp4` But what should we...

fantasylhd