[英]How to resize video stream from cv2 according to tkinter window
[英]RTMP stream from OpenCV/cv2 to an nginx server, but client get just a green window
我想实现一个监视服务器来检测带有 openCV 的对象。
为此,我为此工作流设置了 Ubuntu 服务器:
Mobile CAM (from an Android) stream
|
| put the stream with RTMP to server rtmp://nginx/live/in [1]
|
v
nginx with the rtmp plugin
^
|
| the python script gets the mobile CAM stream from nginx rtmp://nginx/live/in [2]
|
v
surveillance script
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| Stream to output back to rtmp://nginx/live/out with the results [3]
|
v
nginx with the rtmp plugin
^
|
| get the output stream from nginx rtmp://nginx/live/in [4]
|
RTMP stream client
我真的不了解 stream 和 RTMP 参数。 到目前为止,我的 [1] 和 [2] 工作正常,所以我在 phython OpenCV 脚本的帧中拥有来自移动 CAM 的视频。
在目标客户端 [4](我使用 ffplay rtmp://nginx/live/out)上,我只有一个绿色的 window,没有其他内容。
我将其用于流式传输部分:
...
send_gst = "appsrc ! videoconvert ! video/x-raw,format=I420,clock-rate=90000 ! x264enc ! video/x-h264,stream-format=(string)byte-stream,alignment=(string)au ! h264parse ! queue ! flvmux ! rtmpsink location=rtmp://nginx/live/out"
writer = cv2.VideoWriter(send_gst, 0, 20, (520, 380), True)
...
if writer is not None:
writer.write(frame)
...
也许有人可以给我一些提示或哪部分代码需要帮助我。
解决了,源和目的分辨率应该是一样的
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