javacv

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I am using a usb video camera with a button and I would like to take a picture when the user clicks the button. I have asked the camera manufacture...

meeeee12

Grabbing/recording packets doesn't work, EXCEPTION_ACCESS_VIOLATION.

38

Hello, I'm trying to send a stream from grabber to recorder without transcoding. I already received some help from Samuel Audet, who pointed me to this sample: https://github.com/bytedeco/javacv/blob/master/samples/PacketRecorderTest.java#L53 I tried...

samokhodkin

The color of the image changes after compositing with addweighted

4

I use the addweighted function to synthesize 2 image, but the color of the synthesized image has changed from the previous image.

CJL6015

startUnsafe casue NullPointerException lead to jvm crash

3

private FFmpegFrameRecorder recorder; private boolean consumerIsVaild = true; public DataAutoRecordConsumer(DataCollect dataCollect, DataTask dataTask) throws FrameRecorder.Exception { super(dataCollect, dataTask); initRecord(); } private void initRecord() throws FrameRecorder.Exception { try { if (null...

347866243

org.bytedeco.javacv.FFmpegFrameRecorder$Exception: avformat_write_header error() error -40: Could not write header to 'rtmp://192.168.0.104/live/livestream'

5

Please how to solve this problem： Input #0, rtsp, from 'rtsp://admin:H2@[email protected]:554/Streaming/Channels/102': Metadata: title : Media Presentation Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: hevc (Main), yuvj420p(pc), 640x480 [SAR...

qingzhang0

Can I resample a single frame?

8

Can I resample a single frame。 `FFmpegframerecorder` will generate files. I don't want to generate files during resampling。

Code-Lonely

Using soundtouch to change the tone will cause noise

2

Hello, author. I have successfully transplanted SoundTouch to Android, and I want to achieve a player that supports tune-changing and unvariable speed. I use FFMPEG in JavacV to decode audio,...

Code-Lonely

Caused by: java.lang.NoClassDefFoundError: java.lang.ClassNotFoundException: org.bytedeco.javacpp.presets.javacpp

8

I encountered a problem when using javacv ffmpeg. Classnotfoundexception will be thrown when running.  I checked`app-debug.apk`package`classe.dex`Code in the file，It is found that the javacpp dependency has changed into this,...

Code-Lonely

"Fastest" way to display h264 decoded frames on Android device

13

Hi there, I'm very happy with javacv which helped me a lot to decode a raw h264 video stream from my robot. The pure decoding into the javacv's frame works...

Vinz1911

List all supported video types.

1

I'm looking for a way to list all supported video types. Something akin to the (javax.imageio) method ImageIO.getReaderMIMETypes(), returning: `"image/gif", "image/tga", "image/webp", ...`

p4paul