带时间戳的视频到带时间戳的图像 [英] Time stamped video to time stamped images

问题描述

我有一个带时间戳的AVI视频文件.

I have a time stamped AVI video file.

我想从视频帧中创建图像，但是我还需要它们也有时间与它们相关联.

I want to create images from the frames of the video but I need them to also have a time associated with them as well.

我可以使用以下方法通过FFmpeg从视频创建图像:

I can create images from the video through FFmpeg using:

ffmpeg -i video.avi -r 0.1 image_％05.jpeg

ffmpeg -i video.avi -r 0.1 image_%05.jpeg

但是，此图像没有嵌入时间.是否还可以花费时间与视频中的每个帧相关联?

However this images do not have a time embedded. Is it possible to also take the time associated with each frame in the video?

我的最终目标是将时间戳记与GPS轨道同步以对图像(从视频帧中进行地理标记)

My end goal is to sync the time stamp with a GPS track to geotag the images (from the video frames.)

推荐答案

Stackoverflow与编程有关-这个问题更适合于超级用户.

Stackoverflow is related to programming - this question is more suited to superuser.

不过，要回答您的问题，如果您要包括原始视频文件中存在的时间戳叠加层，则可以调用该流并在输出文件上保留该叠加层.

To answer you question though, if you are trying to include a timestamp overlay that is present in the original video files, then you can call that stream and maintain the overlay on your output files.

如果相反，您尝试生成相对于PTS的自己的屏幕上文本，请尝试:

If instead you are trying to generate your own onscreen text relative to the PTS, try:

ffmpeg -i video.avi -vf "drawtext=fontfile='c\:\\windows\\fonts\\arialbd.ttf':'%{pts\:hms}':x=0:y=0:fontcolor=white:fontsize=10:box=1:boxcolor=black" /
-f image2 image_%05d.bmp

将x=0和y=0处的值更改为希望文本出现的像素坐标.还要更改fontsize=之后的值以更改文本的大小.

Chang the values at x=0 and y=0 to the pixel coordinates where you want the text to being. Also cahnge the value after fontsize= to change the size of the text.

.....对上述ffmpeg命令中的任何尴尬格式表示抱歉.我自己还是很习惯.

.... sorry for any awkward formating in the ffmpeg command above. I'm still getting used to this myself.

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