ffmpeg将一系列图像转换为视频 - 交叉渐变或每两帧之间的任何其他转换 [英] ffmpeg convert a series of images to video - with crossfade or any other transition between every two frames

问题描述

我目前可以将一系列图像转换为视频，但我也需要在它们之间添加转换/动画。

  String [] ffmpegCommand = {/ data / data / mypackage / app_bin / ffmpeg，-y，
-qscale，1，-r ，-i，/data/data/mypackage/app_ipImg/image%3d.jpg，
-t，+（（（total_images）* delay_of_each_frame_in_seconds）+ 4），// -s，heightwidth，
-vcodec，libx264，-s，640x480，
 Environment.getExternalStorageDirectory（）+/photo_directory/myVideo.mp4}; 
  

上述命令正在为我创建来自图像系列的视频 / p>

但

现在，我想添加淡入淡出或其他转换/动画在每个框架之前的最终视频中显示。

我google了很多，但没有找到解决这个问题的办法，

请以建议的方式。

提前感谢。

解决方案

我建议您找到有关框架混合或运动插补的更多信息。

这是例如在timelapse视频中用于平滑渲染。

• 混合帧，使用ffmpeg与tblend过滤器。
  例如，以下命令可以帮助：
  ffmpeg -i {input} -vftblend = average，framestep = 2，setpts = 0.50 * PTS-r {srcfps} - {encoding parameters} {output} 。通过输入文件的名称 {input} 由输入文件 {output} 替换 {srcfps} 每秒的源帧数，以及 - {encoding parameters} 您要告诉ffmpeg输出的参数。
  您还可以将 minterpolate 过滤器添加到过滤器堆栈中以添加一些运动模糊。




• 为了根据运动生成新的框架，Butterflow项目可以帮助： https：//

  
  
  < b $ b

  使运动内插视频（通过基于运动渲染中间帧来增加视频的帧速率，使用像素扭曲和混合的组合）。

  
  
  

  使平滑运动视频（简单的帧间混合）。

  
  
  

  利用内插帧使流体慢动作视频。

  
  

I am currently able to convert a series of images to video, but I do also need to add transitions / animation in between them.

String[] ffmpegCommand = {"/data/data/mypackage/app_bin/ffmpeg", "-y",
"-qscale", "1", "-r", "" + framerate, "-i", "/data/data/mypackage/app_ipImg/image%3d.jpg",
"-t", "" + (((total_images) * delay_of_each_frame_in_seconds) + 4), //"-s",heightwidth,
"-vcodec", "libx264", "-s", "640x480",
 Environment.getExternalStorageDirectory() + "/photo_directory/myVideo.mp4"};

The above command is working for me to create video from image series

But

Now, I do want to add fade or other transition / animation to be displayed in final video before each of the frames.

I googled a lot, but didn't find any solution to this trouble, yet.

Please suggest me the way.

Thanks in advance.

解决方案

I would suggest you to find more information about Frame Blending or Motion interpolation.

This is for example used in timelapse videos to smooth the render.

• To blend frames, use ffmpeg with the tblend filter. For example the following command can help : ffmpeg -i {input} -vf "tblend=average,framestep=2,setpts=0.50*PTS" -r {srcfps} -{encoding parameters} {output}. Replace {input} by your input file, {output} by the name of the output file, {srcfps} by your source frames per second, and -{encoding parameters} the parameters you tell ffmpeg to output. You could also add minterpolate filter to the filter stack to add some motion blur.

• To generate new frames based on motion, the Butterflow project can help : https://github.com/dthpham/butterflow

  Features

  Makes motion interpolated videos (increase a video's frame rate by rendering intermediate frames based on motion, uses a combination of pixel-warping and blending).

  Makes smooth motion videos (simple blending between frames).

  Leverages interpolated frames to make fluid slow motion videos.

这篇关于ffmpeg将一系列图像转换为视频 - 交叉渐变或每两帧之间的任何其他转换的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！