Multimedia
Blocks for processing and manipulating video and audio files.
Add Audio To Video
What it is
Block to attach an audio file to a video file using moviepy.
How it works
This block combines a video file with an audio file using the moviepy library. The audio track is attached to the video, optionally with volume adjustment via the volume parameter (1.0 = original volume).
Input files can be URLs, data URIs, or local paths. The output can be returned as either a file path or base64 data URI.
Inputs
video_in
Video input (URL, data URI, or local path).
str (file)
Yes
audio_in
Audio input (URL, data URI, or local path).
str (file)
Yes
volume
Volume scale for the newly attached audio track (1.0 = original).
float
No
output_return_type
Return the final output as a relative path or base64 data URI.
"file_path" | "data_uri"
No
Outputs
error
Error message if the operation failed
str
video_out
Final video (with attached audio), as a path or data URI.
str (file)
Possible use case
Add Voiceover: Combine generated voiceover audio with video content for narrated videos.
Background Music: Add music tracks to silent videos or replace existing audio.
Audio Replacement: Swap the audio track of a video for localization or accessibility.
Loop Video
What it is
Block to loop a video to a given duration or number of repeats.
How it works
This block extends a video by repeating it to reach a target duration or number of loops. Set duration to specify the total length in seconds, or use n_loops to repeat the video a specific number of times.
The looped video is seamlessly concatenated and can be output as a file path or base64 data URI.
Inputs
video_in
The input video (can be a URL, data URI, or local path).
str (file)
Yes
duration
Target duration (in seconds) to loop the video to. If omitted, defaults to no looping.
float
No
n_loops
Number of times to repeat the video. If omitted, defaults to 1 (no repeat).
int
No
output_return_type
How to return the output video. Either a relative path or base64 data URI.
"file_path" | "data_uri"
No
Outputs
error
Error message if the operation failed
str
video_out
Looped video returned either as a relative path or a data URI.
str
Possible use case
Background Videos: Loop short clips to match the duration of longer audio or content.
GIF-Like Content: Create seamlessly looping video content for social media.
Filler Content: Extend short video clips to meet minimum duration requirements.
Media Duration
What it is
Block to get the duration of a media file.
How it works
This block analyzes a media file and returns its duration in seconds. Set is_video to true for video files or false for audio files to ensure proper parsing.
The input can be a URL, data URI, or local file path. The duration is returned as a float for precise timing calculations.
Inputs
media_in
Media input (URL, data URI, or local path).
str (file)
Yes
is_video
Whether the media is a video (True) or audio (False).
bool
No
Outputs
error
Error message if the operation failed
str
duration
Duration of the media file (in seconds).
float
Possible use case
Video Processing Prep: Get video duration before deciding how to loop, trim, or synchronize it.
Audio Matching: Determine audio length to generate matching-length video content.
Content Validation: Verify that uploaded media meets duration requirements.
Last updated
Was this helpful?