RTSP帧抓取会产生污点，像素化和损坏的图像 [英] RTSP Frame Grabbing creates smeared , pixeled and corrupted images

问题描述

我正在尝试使用以下命令每秒从RTSP流中捕获单个帧ffmpeg -i rtsp://XXX -q:v 1 -vf fps = fps = 1 -strftime 1 ZZZZ \％H_％M_％S.jpg

I am trying to capture a single frame per second from a RTSP stream with following command ffmpeg -i rtsp://XXX -q:v 1 -vf fps=fps=1 -strftime 1 ZZZZ\%H_%M_%S.jpg

但是某些帧被涂抹，像素化和损坏-如果提高rtsp分辨率，此效果会大大增加 (如果分辨率为例如减少到720P，大多数帧都可以)

But some of the frames are smeared ,pixeled and corrupted - this effect is drastically increases if rtsp resolution is increased (if the resolution is decreased for example to 720P most of the frames are OK)

我不得不说，在VLC或FFPLAY中播放相同的rtsp流是没有流程的.

I have to say that playing same rtsp stream in VLC or FFPLAY is flowless.

我如何解决它以获取更好的质量

How I can fix it to grab better quality

谢谢.

推荐答案

解决方案显然是强制FFMPEG按照以下方式使用 TCP PROTOCOL

Solution for that apparently is to force FFMPEG use TCP PROTOCOL following way

ffmpeg -rtsp_transport tcp -i rtsp://XXX -q:v 1 -vf fps = fps = 1 -strftime 1 ZZZZ \％H_％M_％S.jpg

ffmpeg -rtsp_transport tcp -i rtsp://XXX -q:v 1 -vf fps=fps=1 -strftime 1 ZZZZ\%H_%M_%S.jpg

非常感谢此问题和解决方案

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