我想知道是否有一种方法可以抑制，隐藏或禁用从OpenCV输出到屏幕上的错误或警告消息，我认为这源自cap.read（）？
我认为它们是使用FFMpeg来自OpenCV的，它们显示如下：
情况1：
[mpeg2video @ 0x3430c00] Invalid frame dimensions 0x0.
[mpeg2video @ 0x3430c00] Invalid frame dimensions 0x0.
[mpeg2video @ 0x3430c00] Invalid frame dimensions 0x0.
[mpeg2video @ 0x3430c00] Invalid frame dimensions 0x0.
[mpeg2video @ 0x3430c00] Invalid frame dimensions 0x0.
[mpeg2video @ 0x3430c00] Invalid frame dimensions 0x0.
[mpeg2video @ 0x3430c00] Invalid frame dimensions 0x0.
[mpeg2video @ 0x3430c00] Invalid frame dimensions 0x0.
[mpeg2video @ 0x3430c00] Invalid frame dimensions 0x0.
[mpeg2video @ 0x3430c00] Invalid frame dimensions 0x0.
或
情况2：
...
[h264 @ 0x29e5a40] co located POCs unavailable
[h264 @ 0x2a6c3c0] co located POCs unavailable
[h264 @ 0x29d7b80] reference picture missing during reorder
[h264 @ 0x29d7b80] Missing reference picture, default is 65656
[h264 @ 0x298da80] mmco: unref short failure
[h264 @ 0x298da80] number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one
[h264 @ 0x29dc700] reference picture missing during reorder
[h264 @ 0x29dc700] Missing reference picture, default is 65672
[h264 @ 0x2a27180] mmco: unref short failure
[h264 @ 0x2af7680] co located POCs unavailable
[h264 @ 0x29e5a40] mmco: unref short failure
[h264 @ 0x29e5a40] number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one
[h264 @ 0x2af9040] mmco: unref short failure
据我所知，案例1是一个已知问题，因为它正在寻找PES标头。直到找到标题，这些消息中只有很少一部分。
我不了解情况2，不知道发生了什么，但似乎正在读取图像@框架。这些消息很多，它们输出到控制台窗口并增加处理时间。