ComfyUI Node: Export With Ffmpeg (mtb)

Export With Ffmpeg (mtb):

The Export With Ffmpeg (mtb) node is designed to facilitate the export of image sequences or playlists into video files using the powerful FFmpeg tool. This node is particularly useful for AI artists who need to convert their generated images into a cohesive video format for presentations, animations, or further processing. By leveraging FFmpeg, this node supports a variety of video formats and codecs, ensuring high compatibility and quality. The node can handle both individual image sequences and playlists of existing videos, making it a versatile tool for different export needs. Its primary function is to streamline the video creation process, allowing you to focus on your creative work without worrying about the technical complexities of video encoding.

Export With Ffmpeg (mtb) Input Parameters:

fps

The fps parameter stands for frames per second and determines the playback speed of the resulting video. A higher fps value results in smoother motion but requires more frames. The default value is 24, which is a standard frame rate for cinematic video. The minimum value is 1, ensuring at least one frame per second.

prefix

The prefix parameter allows you to specify a custom prefix for the output video file name. This helps in organizing and identifying your exported videos. The default value is "export".

format

The format parameter specifies the video file format for the export. Available options include "mov", "mp4", "mkv", "gif", and "avi". The default format is "mov". Choosing the right format depends on your specific needs and the platforms where the video will be used.

codec

The codec parameter determines the video codec used for encoding the video. Available options are "prores_ks", "libx264", "libx265", and "gif". The default codec is "prores_ks", which is known for high-quality video output. The choice of codec affects the video quality, file size, and compatibility.

images

The images parameter is an optional input that accepts a sequence of images (in tensor format) to be converted into a video. If no images are provided, the node will not perform the image sequence export function.

playlist

The playlist parameter is an optional input that accepts a list of video file paths to be concatenated into a single video. This is useful for combining multiple video clips into one continuous video file.

Export With Ffmpeg (mtb) Output Parameters:

VIDEO

The VIDEO output parameter provides the path to the exported video file. This path can be used to access the video for playback, further editing, or sharing. The output ensures that the video has been successfully created and saved in the specified format and location.

Export With Ffmpeg (mtb) Usage Tips:

• Ensure that the fps value matches the intended playback speed of your video to avoid unexpected results.
• Use a meaningful prefix to easily identify your exported videos, especially when working on multiple projects.
• Choose the format and codec that best suit your needs; for example, use "mp4" and "libx264" for web compatibility.
• When exporting a playlist, make sure all video files in the list are accessible and properly formatted to avoid errors.

Export With Ffmpeg (mtb) Common Errors and Solutions:

"images is None or images.size(0) == 0"

• Explanation: This error occurs when no images are provided for export.
• Solution: Ensure that the images parameter is correctly set with a valid sequence of images.

"Playlist is empty, skipping"

• Explanation: This error indicates that the provided playlist is empty.
• Solution: Verify that the playlist parameter contains valid video file paths and is not empty.

"Program 'ffmpeg' is not found"

• Explanation: This error means that FFmpeg is not installed or not found in the system path.
• Solution: Install FFmpeg using a package manager like apt-get install ffmpeg and ensure it is accessible from the command line.

"Error executing FFmpeg command"

• Explanation: This error occurs when there is an issue with the FFmpeg command execution.
• Solution: Check the FFmpeg command syntax and ensure all input files and parameters are correct. Review the log for specific error messages from FFmpeg.