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# 操作
使用mpp_frame_get_buffer()函数得到了解码器输出的frame对应的MppBuffer，然后使用mpp_buffer_get_ptr()函数得到了MppBuffer的地址，然后根据这个地址对图像数据进行操作，例如画框。
# 问题
对第一帧的数据操作没有问题，但是在第二帧的时候MppBuffer中的数据有残留第一帧中画的框，是不是因为MppBuffer对应的数据空间…
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rga kernel driver version:
```
cat /sys/kernel/debug/rkrga/driver_version
RGA2 Device Driver: v2.1.0
```
I exported yolov8s.onnx in https://github.com/airockchip/ultralytics_yolov8
`cd ultral…
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### Describe the problem you are having
I am using an Orange Pi 5 Plus with 16GB RAM and running Armbian with kernel 5.10. In my Frigate configuration, I deliberately set ffmpeg to decode at 10 fps t…
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### This issue respects the following points:
- [X] This is a **bug**, not a question or a configuration issue; Please visit our forum or chat rooms first to troubleshoot with volunteers, before crea…
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When debugging with breakpoints, it was found that `avcodec_receive_frame` allways return -11.
But using `h264` is normal, it can display.
```
try
{
ffmpeg.av_frame_unref(_videoFrame);
f…
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**NOTE**: These benchmarks are preliminary (run on an early preproduction batch of the board)—I will be re-testing with my production boards soon!
![DSC04085](https://github.com/geerlingguy/sbc-rev…
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can anybody help me find the problem here? @nyanmisaka
I changed this line https://github.com/MarcA711/Rockchip-FFmpeg-Builds/blob/2257758f4a66f396bb5bb1ad708f2f2a1f405792/scripts.d/50-vulkan/45-vu…
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I happily read that the latest version of Jellyfin server supports Rockchip HW acceleration, so I'm trying out the docker images. However it's not running out of the box. I get this inside the contain…
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Hello
I am experimenting the approach where the mmapped mppbuffer pointer is directly referenced to AVFrame->data[0,1,2], so that i can get rid off memcopy totally. I could expect some alignment is…
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Hello
I can get hwdecoder functioning with FFMpeg 4 & 5 with kodi, vlc, and ffplay etc. However dont knwo how to force Chromium Firefox or Opera to use rkmpp based decoders. Is there any previous p…