如何从使用ffmpeg的时间戳命名的帧中创建视频 [英] How to create a video from frames named using timestamp with ffmpeg

问题描述

我有一个文件夹，里面装有以以下格式命名的带有时间戳的帧

I have a folder filled with frames that have the timestamp in the name in the folowing format

im_％H_％M_％S_％MS.png

im_%H_%M_%S_%MS.png

im_08_05_09_007324.png
im_08_05_09_532857.png
im_08_05_10_059340.png
im_08_05_10_575862.png
im_08_05_11_118361.png
im_08_05_11_596814.png
im_08_05_12_148340.png
im_08_05_12_665838.png

我尝试在Windows中使用 -pattern_type glob ，但是它不起作用.

I try to use -pattern_type glob in windows but it does not work.

ffmpeg.exe -framerate 10 -pattern_type glob -i im_*.png -c:v libx264 -r 30 -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2"  -pix_fmt yuv420p $videoName

我知道

 Pattern type 'glob' was selected but globbing is not supported by this libavformat build im_*.png: Function not implemented

后来我发现这在Windows上不起作用:(这是我正在使用的.

later I found that this do not work on windows :( which is what I am using. ffmpeg Error: Pattern type 'glob' was selected but globbing is not support ed by this libavformat build

我也尝试

ffmpeg.exe -framerate 10 -pattern_type glob -i im_%02d_%02d_%02d_%06d.png -c:v libx264 -r 30 -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2"  -pix_fmt yuv420p $videoName

我知道了

im_%02d_%02d_%02d_%06d.png: No such file or directory

我的想法不多了.我拒绝相信在ffmpeg和powershell中无法做到这一点.非常感谢您的帮助！

I am running out of ideas. I refuse to believe that there is no way to do this in ffmpeg and powershell. I really appreciate any help!

推荐答案

您可以通过concat多路分配器使用解决方法

You can use a workaround, via the concat demuxer

按顺序创建文件名列表的文本文件

Create a text file with the list of filenames in order

file im_08_05_09_007324.png
file im_08_05_09_532857.png
file im_08_05_10_059340.png
file im_08_05_10_575862.png
file im_08_05_11_118361.png

然后运行

ffmpeg -f concat -r 10 -i list.txt -c:v libx264 ...

(这将产生有关无效DTS的警告，但您可以忽略它们)

(this will produce warnings about invalid DTS but you can ignore them)

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