ComfyUI Node: Video Synth (Path List + Audio)

Video Synth (Path List + Audio):

The VideoFromPathsAndAudio node is designed to create a video by combining a series of images and an audio track. This node allows you to specify multiple image paths, each representing a sequence of frames, and synchronize them with an audio file to produce a cohesive video output. It offers flexibility in terms of video format and frame rate, and includes options for smooth transitions between image sequences. This node is particularly useful for AI artists looking to generate videos from static images and audio, providing a streamlined process to create dynamic visual content with synchronized sound.

Video Synth (Path List + Audio) Input Parameters:

image_paths

This parameter accepts a multiline string where each line represents a path to an image file or a directory containing images. These paths are used to load the images that will form the frames of the video. The order of the paths determines the sequence of the frames in the video. There is no default value, and you must provide at least one valid path.

frame_counts

This parameter is a multiline string where each line corresponds to the number of frames associated with each image path provided in image_paths. It ensures that the correct number of frames is used from each path, allowing for precise control over the video composition. There is no default value, and it must match the number of lines in image_paths.

audio

This parameter takes an audio file that will be synchronized with the video frames. The audio provides the soundtrack for the video, enhancing the visual experience. There is no default value, and you must provide a valid audio file.

fps

This integer parameter sets the frames per second for the video, determining the playback speed. The default value is 25, with a minimum of 1 and a maximum of 120. Adjusting this value affects the smoothness and duration of the video.

filename_prefix

This string parameter specifies the prefix for the output video file's name. The default value is "video_output". It helps in organizing and identifying the generated video files.

format

This parameter allows you to choose the output video format from options such as "mp4", "mkv", and "mov". The choice of format can affect compatibility with different media players and platforms.

enable_transition

This boolean parameter determines whether transitions between image sequences are enabled. The default value is True, which allows for smoother visual transitions between different image paths.

transition_seconds

This float parameter sets the duration of the transition effect between image sequences, with a default value of 0.5 seconds. The minimum value is 0.05 seconds, and the maximum is 5.0 seconds. Adjusting this value changes the length of the transition effect.

transition_type

This parameter provides options for the type of transition effect to apply between image sequences. Available options include "crossfade", "left_wipe", and "right_wipe". The choice of transition type affects the visual style of the video.

Video Synth (Path List + Audio) Output Parameters:

video_output

The output of this node is a video file that combines the specified image sequences and audio track. The video is generated according to the specified frame rate, format, and transition settings. This output is crucial for creating a cohesive multimedia presentation that integrates both visual and auditory elements.

Video Synth (Path List + Audio) Usage Tips:

• Ensure that the number of lines in frame_counts matches the number of paths in image_paths to avoid synchronization issues.
• Experiment with different fps values to achieve the desired video speed and smoothness.
• Use the enable_transition and transition_type parameters to enhance the visual flow between image sequences, making the video more engaging.

Video Synth (Path List + Audio) Common Errors and Solutions:

"Invalid image path"

• Explanation: This error occurs when one or more paths in image_paths do not point to valid image files or directories.
• Solution: Verify that all paths are correct and accessible, and ensure they point to valid image files or directories.

"Mismatch in frame counts"

• Explanation: This error arises when the number of lines in frame_counts does not match the number of paths in image_paths.
• Solution: Ensure that each image path has a corresponding frame count entry, and that the numbers match.

"Unsupported audio format"

• Explanation: This error occurs if the provided audio file is in a format not supported by the node.
• Solution: Convert the audio file to a supported format, such as WAV or MP3, and try again.

"Invalid transition type"

• Explanation: This error happens when an unsupported transition type is specified.
• Solution: Choose a transition type from the available options: "crossfade", "left_wipe", or "right_wipe".