OpenCV 视频录制codec

最新推荐文章于 2024-08-12 17:39:41 发布

scyscyao

最新推荐文章于 2024-08-12 17:39:41 发布

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本文提供了一系列使用OpenCV库进行视频文件写入的示例代码。通过不同的编码方式和文件格式，展示了如何根据需求选择合适的视频压缩编码来创建视频文件。

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一直对此比较疑惑，而且代码里似乎也找不到相关所以网上找了下，大概就下面这几种把

if(videoWriter==NULL) filename = filenamePrefix + ".avi";

    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC('D','I','V','X'),fps,cvGetSize(f));
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC('M','J','P','G'),fps,cvGetSize(f));
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC('P','I','M','1'),fps,cvGetSize(f));
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC('P','I','C','1'),fps,cvGetSize(f));
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC('M','P','4','2'),fps,cvGetSize(f));
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC('D','I','V','3'),fps,cvGetSize(f));
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC('V','P','3','1'),fps,cvGetSize(f));
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC('V','P','3','0'),fps,cvGetSize(f));
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC('C','V','I','D'),fps,cvGetSize(f));
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC('f','f','d','s'),fps,cvGetSize(f));
    if(videoWriter==NULL) filename = filenamePrefix + ".mpg";
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),CV_FOURCC_DEFAULT,         fps,cvGetSize(f));
    if(videoWriter==NULL) filename = filenamePrefix + ".avi";
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),-1,                        fps,cvGetSize(f)); // ask usr to choose
    if(videoWriter==NULL) filename = filenamePrefix + "_00001.png";
    if(videoWriter==NULL) videoWriter = cvCreateVideoWriter(filename.c_str(),0,                         fps,cvGetSize(f)); // fall back on image output

if(videoWriter==NULL) // unable to write anything...

from http://comments.gmane.org/gmane.comp.lib.opencv/43761