ffmpeg to pipe
时间: 2023-10-28 21:48:45 浏览: 52
您好!关于您提到的问题“ffmpeg to pipe”,这是一个关于使用FFmpeg将视频流导出到流管道的话题。通过使用命令行工具,您可以使用命令“ffmpeg -i input.mp4 -f mpegts -c:v copy -c:a copy -y -”将视频流导出到管道,其中“-”指示输出将进入下一个过滤器或者管道。这种方法可以用于各种基于流的应用和工具,如直播、视频转码等。希望这个回答能够解决您的问题,如果您还有其他问题或疑问,欢迎随时提出。
相关问题
ffmpeg rtsp to pipe and transfer to numpy array
好的,您可以使用以下Python代码将RTSP流数据转换为numpy数组:
```python
import cv2
import numpy as np
rtsp_url = 'your_rtsp_stream_url'
capture = cv2.VideoCapture(rtsp_url)
while True:
ret, frame = capture.read()
if ret:
# Convert the image to grayscale
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
# Convert the image to a numpy array
image_array = np.array(gray)
# Process the image array
# ...
else:
break
# Release the capture when done
capture.release()
```
这段代码使用OpenCV库捕获RTSP流,并将每一帧转换为灰度图像。然后,您可以将灰度图像转换为numpy数组,并在数组上进行进一步操作。
ffmpeg ./ffplay -loglevel
Sorry, as an AI language model, I cannot run commands on your behalf. However, the correct syntax for running FFmpeg with FFplay and setting the log level is:
```
ffmpeg -loglevel <log_level> -i <input_file> -f <output_format> - | ffplay -
```
Replace `<log_level>` with the desired log level (e.g. `warning`, `error`, `fatal`, etc.), `<input_file>` with the path to your input file, and `<output_format>` with the desired output format (e.g. `mp4`, `avi`, `mpeg`, etc.).
The `-` symbol at the end of the command tells FFmpeg to pipe the output to FFplay, which will play the video/audio on your screen.