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Wolfram Language & System Documentation Center
VideoJoin
  • See Also
    • VideoInsert
    • VideoReplace
    • VideoCombine
    • VideoTrim
    • VideoSplit
    • VideoDelete
    • AudioJoin
    • Join

    • Formats
    • MP4
    • QuickTime
    • Matroska
    • Ogg
  • Related Guides
    • Video Editing
    • Video Computation: Update History
    • See Also
      • VideoInsert
      • VideoReplace
      • VideoCombine
      • VideoTrim
      • VideoSplit
      • VideoDelete
      • AudioJoin
      • Join

      • Formats
      • MP4
      • QuickTime
      • Matroska
      • Ogg
    • Related Guides
      • Video Editing
      • Video Computation: Update History

VideoJoin[video1,video2,…]

concatenates all videoi and returns a video object.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Options  
AudioEncoding  
CompressionLevel  
ConformationMethod  
Show More Show More
FrameRate  
GeneratedAssetLocation  
OverwriteTarget  
RasterSize  
SampleRate  
SubtitleEncoding  
TransitionDirection  
TransitionDuration  
TransitionEffect  
VideoEncoding  
See Also
Related Guides
History
Cite this Page
BUILT-IN SYMBOL
  • See Also
    • VideoInsert
    • VideoReplace
    • VideoCombine
    • VideoTrim
    • VideoSplit
    • VideoDelete
    • AudioJoin
    • Join

    • Formats
    • MP4
    • QuickTime
    • Matroska
    • Ogg
  • Related Guides
    • Video Editing
    • Video Computation: Update History
    • See Also
      • VideoInsert
      • VideoReplace
      • VideoCombine
      • VideoTrim
      • VideoSplit
      • VideoDelete
      • AudioJoin
      • Join

      • Formats
      • MP4
      • QuickTime
      • Matroska
      • Ogg
    • Related Guides
      • Video Editing
      • Video Computation: Update History

VideoJoin

VideoJoin[video1,video2,…]

concatenates all videoi and returns a video object.

Details and Options

  • VideoJoin is typically used to combine multiple video files in a sequence.
  • Video objects videoi may have different properties, including frame size and frame rate. The properties are conformed before joining.
  • Video objects may have different numbers of tracks. Corresponding tracks are joined together.
  • By default, VideoJoin places the new video under the "Video" directory in $WolframDocumentsDirectory.
  • The following options can be specified:
  • AudioEncoding Automaticaudio encoding to use
    CompressionLevel Automaticcompression level to use
    ConformationMethod Automatichow to conform frames of different sizes
    FrameRate Automaticframe rate to use
    GeneratedAssetFormatAutomaticthe file format of the result
    GeneratedAssetLocation $GeneratedAssetLocationlocation of the generated asset
    OverwriteTarget Automaticwhether to overwrite an existing file
    RasterSize Automaticraster size of video frames
    SampleRate Automaticsample rate to use
    SubtitleEncoding Automaticsubtitle encoding to use
    TransitionDirection Automaticdirection of the transition
    TransitionDuration Automaticduration of the transition
    TransitionEffect Automatictransition effect to use
    VideoEncoding Automaticvideo encoding to use
    VideoTransparencyFalsewhether the output video should have a transparency channel
  • By default, videos are joined without any transition effect.
  • Using TransitionDurationdur, videos are overlapped by the specified duration dur during which the transition happens.
  • Supported settings for TransitionEffect are:
  • Noneupdate instantly without a visual effect
    "Fade"fade from old content to new
    "Push"have new content push old content away
    "Wipe"fade from old content to new using a wiping effect

Examples

open all close all

Basic Examples  (1)

Join two videos:

Scope  (2)

Join videos with similar properties:

Join videos with different properties:

Properties of the resulting video are chosen such that most input data can be stored in the output:

Options  (17)

AudioEncoding  (1)

Specify the audio encoding to use:

CompressionLevel  (1)

Join videos using default compression:

Use maximum compression:

The choice of encoders affects the amount by which a file can be compressed:

ConformationMethod  (2)

By default, black padding is used when images are not stretched to fit the common image size:

By default, a common frame size is used and videos are made to fit in the frame:

Use "Fill" fitting to fill the whole canvas for all frames:

Use "Stretch" fitting to resize the frames:

Perform windowboxing when fitting frames:

Specify a padding value:

Use the RasterSize option to specify the desired frame dimensions:

By default, a common frame size is used and videos are made to fit in the frame:

Specify the padding value:

Specify a different fitting scheme:

FrameRate  (1)

By default, the largest frame rate (rounded to the nearest integer value) is used:

Specify the frame rate to use:

GeneratedAssetLocation  (1)

By default, generated video files are stored in $WolframDocumentsDirectory:

Specify the output file directory:

Specify the output file path:

OverwriteTarget  (1)

By default, existing files are not overwritten:

Overwrite existing file:

RasterSize  (1)

By default, the largest raster size is used:

Specify the raster width to use, while preserving the aspect ratio:

Specify the raster width and height:

SampleRate  (1)

By default, the largest sample rate is used:

Specify the sample rate to use:

SubtitleEncoding  (1)

Specify the subtitle encoding to use:

TransitionDirection  (2)

Transition to the left:

Transition to the top:

TransitionDuration  (1)

Specify a transition duration for a smooth transition:

TransitionEffect  (3)

By default, no transition effect is happening:

Specify a transition duration for a smooth transition:

Specify a transition duration for a smooth transition:

VideoEncoding  (1)

Specify the video encoding to use:

See Also

VideoInsert  VideoReplace  VideoCombine  VideoTrim  VideoSplit  VideoDelete  AudioJoin  Join

Formats: MP4  QuickTime  Matroska  Ogg

Related Guides

    ▪
  • Video Editing
  • ▪
  • Video Computation: Update History

History

Introduced in 2020 (12.2) | Updated in 2021 (12.3) ▪ 2021 (13.0) ▪ 2024 (14.0)

Wolfram Research (2020), VideoJoin, Wolfram Language function, https://reference.wolfram.com/language/ref/VideoJoin.html (updated 2024).

Text

Wolfram Research (2020), VideoJoin, Wolfram Language function, https://reference.wolfram.com/language/ref/VideoJoin.html (updated 2024).

CMS

Wolfram Language. 2020. "VideoJoin." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2024. https://reference.wolfram.com/language/ref/VideoJoin.html.

APA

Wolfram Language. (2020). VideoJoin. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/VideoJoin.html

BibTeX

@misc{reference.wolfram_2025_videojoin, author="Wolfram Research", title="{VideoJoin}", year="2024", howpublished="\url{https://reference.wolfram.com/language/ref/VideoJoin.html}", note=[Accessed: 04-February-2026]}

BibLaTeX

@online{reference.wolfram_2025_videojoin, organization={Wolfram Research}, title={VideoJoin}, year={2024}, url={https://reference.wolfram.com/language/ref/VideoJoin.html}, note=[Accessed: 04-February-2026]}

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