C++ OpenCV无法读取MP4视频_C++_Opencv_Ubuntu_Image Processing_Ffmpeg

C++ OpenCV无法读取MP4视频

c++ opencv ubuntu image-processing ffmpeg

C++ OpenCV无法读取MP4视频,c++,opencv,ubuntu,image-processing,ffmpeg,C++,Opencv,Ubuntu,Image Processing,Ffmpeg,我正在使用Ubuntu 14.04上的OpenCV 2.4.8阅读一些MP4视频。该程序可在Mac和其他Linux机器上运行，但由于某种原因，当我编译并运行该程序时，它在退出之前会给我以下错误： [h264 @ 0x1d0dcc0] missing picture in access unit [h264 @ 0x1d0dcc0] missing picture in access unit Non-reference picture received and no reference avai

我正在使用Ubuntu 14.04上的OpenCV 2.4.8阅读一些MP4视频。该程序可在Mac和其他Linux机器上运行，但由于某种原因，当我编译并运行该程序时，它在退出之前会给我以下错误：

[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
[h264 @ 0x1d0dcc0] missing picture in access unit
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d0dcc0] decode_slice_header error
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
Non-reference picture received and no reference available
[h264 @ 0x1d8a5c0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d8a5c0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d8a5c0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d8a5c0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d8a5c0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d8a5c0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d8a5c0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1d8a5c0] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1cf8f40] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1cf8f40] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1cf8f40] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1cf8f40] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1cf8f40] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1cf8f40] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1cf8f40] decode_slice_header error
Non-reference picture received and no reference available
[h264 @ 0x1cf8f40] decode_slice_header error
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit
[h264 @ 0x1d0dcc0] missing picture in access unit

在文件中读取的代码的主要部分如下所示（它们在一些方法之间分割，因此我包含了执行打开和读取帧的所有工作的行：

cv::VideoCapture cap;
cap.open (input_path);
success = cap.read (data.frames[i]);

有人知道如何让我的程序在这些视频中正确阅读吗？我试着在“cap.open”之前加上“cap.set（CV_cap_PROP_FOURCC，CV_FOURCC（'H'，'2'，'6'，'4'））；”但这似乎不起作用。

根据我的经验，最简单的解决方案是转换为.avi

opencv不能像.avi那样简单地处理mp4文件，这似乎是opencv的错。不幸的是，我要处理数百个mp4视频，这将占用大量的时间（和空间）虽然你可能是对的，但我还是想把它们全部转换成视频。如果我只需要再处理几段视频而不制作更多视频，那么我就可以把它们转换成.avi。怎么样？干杯！当我也换成Mac时，我遇到了一个问题，但我发现如果我显式地使用一个标志将其链接到ffmpeg，这是可行的。