tanganke / presentation_to_video

convert presentation to video

Presentation to Video

[中文文档]

convert presentation to video.

Usage

before running the script, you need to make sure that the images and audios (these files are needed to be prepared in advance) are in the following format:

images/
    1.png
    2.png
    ...
audios/
    1.mp3
    2.mp3
    ...

then run the script:

bash presentation_to_video.sh -o output.mp4

this will create a video named output.mp4 in the current directory, and a directory named temp_videos will be created to store the temporary files.

Options

Usage:

bash presentation_to_video.sh [-b begin] [-n end]
    [--image_dir image_dir] [--audio_dir audio_dir] [--temp_dir temp_dir] 
    [--image_prefix image_prefix] [--image_postfix image_postfix] [--image_format image_format] 
    [--audio_prefix audio_prefix] [--audio_postfix audio_postfix] [--audio_format audio_format] 
    [--scale scale] [-o output_file] [--skip]

image options:

Images are the slides of the presentation. They are placed at ${image_dir}/${image_prefix}${i}${image_postfix}.${image_format}.

• --image_dir string: the directory of the images, defaults to images.
• --image_prefix string: the prefix of the images, defaults to empty string.
• --image_postfix string: the postfix of the images, defaults to empty string.
• --image_format format: the format of the images, defaults to png.

audios options:

Audios are the background music or speech of the presentation. They are placed at ${audio_dir}/${audio_prefix}${i}${audio_postfix}.${audio_format}.

• --audio_dir string: the directory of the audios, defaults to audios.
• --audio_prefix string: the prefix of the audios, defaults to empty string.
• --audio_postfix string: the postfix of the audios, defaults to empty string.
• --audio_format format: the format of the audios, defaults to mp3.

range options:

The index i of images and audios are in {$b..$n}.

• -b value: the begin index of the images, defaults to 1.
• -n value: the end index of the images, defaults to 1.

output options:

The output temporary videos are placed at ${temp_dir}/{i}.mp4.

• -o output_file: the final output video, defaults to output.mp4.
• --scale scale: the scale of the output video, defaults to 1920:1080.
  • 1080p: 1920:1080
  • 2K/1440p: 2560:1440
  • 4K/2160p: 3840:2160
• --skip: skip the existing temporary videos, defaults to false, which means the script will overwrite the existing temporary videos. If --skip is provided, the script will skip the existing temporary videos.
• --temp_dir temp_dir: the directory of the temporary videos, defaults to temp_videos.

Requirements

• ffmpeg