javacv

javacv copied to clipboard

When to get data from recorder's stream

1

I tried this for record sample data ``` PipedOutputStream pos=new PipedOutputStream(); FFMpegFrameRecorder recorder=new FFmpegFrameRecorder(pos,channels); PipedInputStream pis=new PipedInputStream(pos,640000)； ...setRecorder... recorder.start(); ....get frame from somewhere... while((frame!=null){ recorder.record(frame); while(pis.avaliable()>0){ pis.read(new byte[2048]); } frame.close();...

steeveen

Not compatible with spring on MacBook

12

I initialize a spring boot project with spring initializer, it works fine; Then I add javacv dependency to it, it failed with the following message. But the above code javacv...

flyhigher139

I want to change the video cover by JavaCV , but I have no idea.

CJL6015

JVM Crash SIGSEGV (0xb) at pc=0x00007fafeb33b900, pid=18758, tid=19555

12

I use the FFmpegFrameGrabber.grabImage() functions. The program always runs for a period of time, and there will be got JVM CRASH Exception: try (FFmpegFrameGrabber frameGrabber = FFmpegFrameGrabber.createDefault(streamUrl)) { if (StringUtils.startsWithIgnoreCase(streamUrl,...

lirongmvp

FFmpegFrameFilter$Exception: avfilter_graph_config() error -22

10

I want to merge a video with several audio files, but get this error：org.bytedeco.javacv.FFmpegFrameFilter$Exception: avfilter_graph_config() error -22。 My filter is "[0:a]adelay=0|0[a0];[1:a]adelay=3000|3000[a1];[2:a]adelay=10000|10000[a2];[a0][a1][a2]amix=inputs=3[a]". Another error is the sample rate of video grabber...

CJL6015

How can I change the start?

1

Can I change the start of audio? 

CJL6015

Android muxer bytebuffers

8

Hi! I'm using Android API to record audio and video and then muxing them. But i don't want to use the Android MediaMuxer API to mux the incoming bytebuffers. Could...

FunnyDevs

java.lang.UnsatisfiedLinkError: no jniopenblas_nolapack in java 11

61

java 11 macos 10.14.6 ``` Warning: Could not load Loader: java.lang.UnsatisfiedLinkError: no jnijavacpp in java.library.path: [/Users/jkolobok/Library/Java/Extensions, /Library/Java/Extensions, /Network/Library/Java/Extensions, /System/Library/Java/Extensions, /usr/lib/java, .] Exception in thread "main" java.lang.UnsatisfiedLinkError: no jniopenblas_nolapack in java.library.path:...

jkolobok

FFmpegFrameRecorder-recordSamples-NullPointerException for transcodeVideo MP4 to mov

3

```java private static final String filename2 = "H:\\inout.mp4"; private static final String filename3 = "H:\\output.mov"; public static void main(String[] args) { FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(filename2); grabber.start(); FFmpegFrameRecorder recorder =...

JinLike

How can i convert avframe to ImageBitmap?(Compose for Desktop)

2

Here is an example code: ``` @Composable fun App() { val videoUrl by remember { mutableStateOf("") } var imageBitmap by remember { mutableStateOf(null) } LaunchedEffect(Unit) { val pFormatContext = avformat_alloc_context()...

habibg1232191