Please provide complete information as applicable to your setup.
**• Hardware Platform (Jetson / GPU)**dGPU
• DeepStream Version 5.1
• JetPack Version (valid for Jetson only)
• TensorRT Version The latest version that came with Deepstream 5.1
• NVIDIA GPU Driver Version (valid for GPU only) 460.39
• Issue Type( questions, new requirements, bugs) Question
• How to reproduce the issue ? (This is for bugs. Including which sample app is using, the configuration files content, the command line used and other details for reproducing)
Hello, My use case is to perform auto color correction through a custom element(the function SimplestCB performs this), colorbalance in an image using c++ and opencv - Stack Overflow.
Looking at Not able to draw line on incoming frame, *dsexample->cvmat, is the cv::Mat object of the frame, which I would need to modify.
I call the SimplestCB function, right after the transcoding of RGBA to BGR conversion takes place inside, get_converted_mat
#if (CV_MAJOR_VERSION >= 4)
cv::cvtColor(in_mat, *dsexample->cvmat, cv::COLOR_RGBA2BGR);
#else
cv::cvtColor(in_mat, *dsexample->cvmat, CV_RGBA2BGR);
SimplestCB(*dsexample->cvmat, tmp, 1);
NvBufSurfaceSyncForDevice(dsexample->inter_buf, 0, 0);
cv::cvtColor(*dsexample->cvmat, in_mat, cv::COLOR_BGR2RGBA);
NvBufSurfaceMap(dsexample->inter_buf, 0, 0, NVBUF_MAP_READ_WRITE);
*dsexample->cvmat = tmp.clone();
Here’s the gst-launch command.
gst-launch-1.0 uridecodebin uri='file:///opt/nvidia/deepstream/deepstream-5.1/samples/streams/sample_1080p_h264.mp4' ! m.sink_0 nvstreammux name=m batch-size=1 width=1280 height=720 ! nvinfer config-file-path=/opt/nvidia/deepstream/deepstream-5.1/sources/deepstream-python-pipeline-structuring/dstest_imagedata_config.ini ! nvvideoconvert ! "video/x-raw(memory:NVMM), format=RGBA" ! dsexample full-frame=1 ! nvvideoconvert ! "video/x-raw(memory:NVMM), format=I420" ! nvv4l2h264enc bitrate=2000000 ! h264parse ! flvmux latency=200 ! rtmpsink location='rtmp://13.xxx.xxx.xx/streamkey'
The issue is that I’m not able to get the color-corrected frame.
Here, is the normal image before color correction named(Normal-image.png)
Here’s the color-corrected image, i.e what the frame should look like if processed correctly.
I have tried adding NvBuf map and unmap, but that gave internal data stream errors, hence I decided to exclude it from the code I’ve posted here.
Thank you in advance!