FastDub 3.8.0

A Python CLI package for voice over subtitles, with the ability to embed in video, audio ducking, and dynamic voice changer for a single track; auto translating; download and upload to YouTube supports

FastDub

Package for voice over subtitles:

• with the ability to embed in video,
• audio ducking,
• dynamic voice changer for a single track. Add --voice-set-anchor at the beginning of the subtitle line. (Applies to all subsequent ones)

pip install -U FastDub

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Install for Ubuntu

sudo apt update -y && sudo apt upgrade -y

sudo apt install python3 python3-pip ffmpeg espeak libxml2-dev libxslt1-dev

; libxml for translator functions

sudo python3 -m pip install -U pip setuptools wheel

sudo python3 -m pip install -U FastDub

Install all dependencies

pip install FastDub[ALL] # default

Youtube support

Youtube argument group

pip install FastDub[YT]

Process all videos from a channel

To get the channel id if it only has a username, run the JS code in the browser console:

document.querySelector("body>link").href

Then, in the input parameter, you can pass a link to the channel (with an id, not with a username) or a string of the format "c/CHANNEL_ID"

For example:

python -m fastdub -i "c/UCi-5OZ2tYuwMLIcEyOsbdRA" -yt

YouTube Search argument group

That the input data was a request to YouTube, they must begin with "?".

For Example:

python -m fastdub -i "?#python" -yt -yts-l 5

YouTube Upload argument group

pip install FastDub[YTU]

To download, you need to go to credentials (Create a new project if needed) > + Create credentials > OAuth Client ID > Desktop App

After filling in the required fields, DOWNLOAD JSON format and save to a working folder under the name client_secrets.json

• Specifying the -ytu-ps argument as non-private may result in processing errors, but this was not observed during testing.

• Please note that video uploads require a large amount of quota ( default has 10,000 per day)

Subtitles translate

Translate argument group

pip install FastDub[TR]

Usage

python -m fastdub --help

usage: fastdub [-h] [-rc {0,1,2}] [-ra | --cleanup-audio | -n-ra | --no-cleanup-audio] [-ev | --export-video | -n-ev | --no-export-video]
               [-l LANGUAGE] [-ll {CRITICAL,FATAL,ERROR,WARN,WARNING,INFO,DEBUG,NOTSET}] [-tc THREADS_COUNT] -i INPUT [-vf VIDEO_FORMAT]
               [-sf SUBTITLES_FORMAT] [-En EXCLUDE [EXCLUDE ...]] [-Eu EXCLUDE_UNDERSCORE] [-sc | --sidechain | -n-sc | --no-sidechain]
               [-sc-args SIDECHAIN_FFMPEG_PARAMS] [-sc-lvl SIDECHAIN_LEVEL_SC]
               [-v {...}]
               [-a ALIGN] [-v-set-a VOICE_SET_ANCHOR] [-fll {trace,debug,verbose,info,warning,error,fatal,panic,quiet}]
               [-y | --confirm | -n-y | --no-confirm] [-af AUDIO_FORMAT] [-wm WATERMARK] [-tb | --traceback | -n-tb | --no-traceback] [-yt]      
               [-ak API_KEYS [API_KEYS ...]] [-yts] [-yts-l YOUTUBE_SEARCH_LIMIT] [-yts-rg YOUTUBE_SEARCH_REGION] [-ytu]
               [-ytu-ps {private,public,unlisted}] [-ytu-t] [-tr] [--rewrite-srt | --no-rewrite-srt]
               [-ts {...}]

fastdub is a tool for dubbing videos by subtitle files.

optional arguments:
  -h, --help            show this help message and exit
  -rc {0,1,2}, --remove-cache {0,1,2}
                        Remove all cache (_cached_texts directory) files
                                0 - No remove cache
                                1 - Delete cache before voice acting
                                2 - Delete cache after voice acting (default)
  -ra, --cleanup-audio, -n-ra, --no-cleanup-audio
                        Remove result audio if video exists (default True) (default: True)
  -ev, --export-video, -n-ev, --no-export-video
  -l LANGUAGE, --language LANGUAGE
                        Subtitles language (ru)
  -ll {CRITICAL,FATAL,ERROR,WARN,WARNING,INFO,DEBUG,NOTSET}, --loglevel {CRITICAL,FATAL,ERROR,WARN,WARNING,INFO,DEBUG,NOTSET}
                        Program log level
  -tc THREADS_COUNT, --threads-count THREADS_COUNT
                        Process count to download (pass to cpu count, < 2 to disable)
                                *N = N * cpu count

Input:
  -i INPUT, --input INPUT
                        Input directory/YouTube Playlist/Video URL.
  -vf VIDEO_FORMAT, --video-format VIDEO_FORMAT
                        Video format (default: .mp4).
  -sf SUBTITLES_FORMAT, --subtitles-format SUBTITLES_FORMAT
                        Subtitles format (default: .srt).

Input Exclude:
  -En EXCLUDE [EXCLUDE ...], --exclude EXCLUDE [EXCLUDE ...]
                        Exclude <name> (glob)
  -Eu EXCLUDE_UNDERSCORE, --exclude-underscore EXCLUDE_UNDERSCORE
                        Exclude files starts with underscore

Audio Ducking:
  -sc, --sidechain, -n-sc, --no-sidechain
                        Enable audio side chain compress (ducking) (default: True)
  -sc-args SIDECHAIN_FFMPEG_PARAMS, --sidechain-ffmpeg-params SIDECHAIN_FFMPEG_PARAMS
                        sidechain FFmpeg parameters (default '')
  -sc-lvl SIDECHAIN_LEVEL_SC, --sidechain-level-sc SIDECHAIN_LEVEL_SC
                        Set sidechain gain. Range is between 0.015625 and 64. (default 0.8)

Voicer:
  -v {...}, --voice {...}
                        SAPI voice for voice acting.
  -a ALIGN, --align ALIGN
                        Audio fit align (divisor)
                                1 = right
                                2 = center (default)
  -v-set-a VOICE_SET_ANCHOR, --voice-set-anchor VOICE_SET_ANCHOR
                        Anchor indicating voice actor change (default "!:")

FFmpeg Output:
  -fll {trace,debug,verbose,info,warning,error,fatal,panic,quiet}, --ffmpeg-loglevel {trace,debug,verbose,info,warning,error,fatal,panic,quiet}  
                        FFmpegWrapper loglevel
  -y, --confirm, -n-y, --no-confirm
                        Don't ask for confirmation (default: True)
  -af AUDIO_FORMAT, --audio-format AUDIO_FORMAT
                        Out audio files format (default wav)
  -wm WATERMARK, --watermark WATERMARK
                        Add watermark to output video

Terminal Output:
  -tb, --traceback, -n-tb, --no-traceback
                        Show debug traceback (default: False)

YouTube:
  -yt, --youtube
  -ak API_KEYS [API_KEYS ...], --api-keys API_KEYS [API_KEYS ...]
                        Youtube API key/s

YouTube Search:
  -yts, --youtube-search
                        The input data is a query for searching on YouTube. (Adds "?" at the start of input)
  -yts-l YOUTUBE_SEARCH_LIMIT, --youtube-search-limit YOUTUBE_SEARCH_LIMIT
                        Sets limit to the number of results. Defaults to 20.
  -yts-rg YOUTUBE_SEARCH_REGION, --youtube-search-region YOUTUBE_SEARCH_REGION
                        Sets the result region. Defaults to "US".

YouTube Upload:
  -ytu, --youtube-upload
                        yt_upload video to YouTube channel after voice acting.
  -ytu-ps {private,public,unlisted}, --privacy-status {private,public,unlisted}
                        Video privacy status (If not private, errors are possible)
  -ytu-t, --youtube-upload-translate
                        Translate title and description on upload. (+ Arguments from translate argument group)

Translate:
  -tr, --translate      Translate input subtitles files
  --rewrite-srt, --no-rewrite-srt
                        Rewrite input subtitles files.
                        If not, add "_" to the beginning of the original subtitle file. (default: False)
  -ts {...}, --translate-service {...}
                        Subtitle translation service. (default google)

If the voice set after "!:" is not selected during voiceover, clear the cache with the -rc argument

Example

python -m fastdub -i DirToDub -v "Yuriy" --no-sidechain -sf vtt -vf mkv

All files in the folder will be voices (*.mkv, *.vtt)

Default is mp4 video and srt subtitles.

Then: name and name2 will be announced, and the results will be saved to a folder with the appropriate name.

YT Example

python -m fastdub -yt -i https://youtu.be/DD5UKQggXTc -v "Yuriy" -l ru

YouTube Search Example

python -m fastdub -yt -yts -i "#annoyingorange" -l ru

Translate Example

python -m fastdub -i DirToDub -tr -ts iciba -l ru

Default service is Google.

Other

The fastdub.utils module stores helper functions.

You can write your issues on GitHub in English or in Russian.

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CHANGELOG

3.8.0

General

• changelog has been translated into English.
• Added logging.error

FFmpeg Wrapper

• ffmpeg_wrapper module objects renamed according to PEP-8 (FFMpeg to FFmpeg)

Translator

• translator.get_service_by_name is now a valid function even if required dependencies are not installed, in which case if call it will raise KeyError

YouTube

• dependency pafy added to extra_requires/requires_yt.txt

3.7.0

General

• Changed minimum supported Python version from 3.8 to 3.9

CLI

• Fixed bug with logging.getLevelNamesMapping() in __main__.py

3.6.0

General

• Package logging used
• Bugfix
• optimization

Audio Processing

• sidechain is now much faster using ffmpeg

FFmpeg Wrapper

• The ffmpeg-imageio library is no longer used, instead the ffmpeg command is always called

CLI

• Argument --sidechain-ffmpeg-params see FFmpeg Documentation
• Separate --sidechain-level-sc see level_sc higher.
• -ll is now program loglevel and ffmpeg loglevel is now -fll

3.5.2

Translator

• Now it will not cause an error in the absence of the Internet.

Subtitles

• Fixed possible .srt format differences (now . is allowed instead of ,)

3.5.1

Subtitles

• Fixed possible problems with different encodings (added chardet module)

3.5.0

Voiceover Process

• Added argument --export-video (-ev): BooleanOptionalAction if False (--no-export-video, -n-ev) only exports audio

3.4.2

• Minor improvements and optimizations.

Subtitles

• The TimeLabel class is no longer a subclass of Line

3.4.1

• Fixed documentation

3.4.0

General

• Added the ability to apply a watermark to the video (see the --watermark argument)

CLI

• Bugfix
• The --watermark argument. The text of the watermark is passed to it.
• Now, when launched from the console, the FastDub mini-banner is shown.

Voiceover Process

• Bugfix
• Now fitted audio (which starts with '_') is always deleted as it's a temporary file

FFmpeg Wrapper

• Added class method FFmpegWrapper.get_video_duration_s which is used in FFmpegWrapper.get_video_duration_ms
• The video result includes: dubbed audio, original audio, subtitles, original subtitles (if any)

Submodules

Translator

• The latest version of the translators module is now used

3.3.0

General

• Implemented class GlobalSettings

Audio Processing

• The calc_speed_change_ffmpeg_arg function for calculating the -af ffmpeg argument for speed change has been changed.

• Significantly accelerated using a different algorithm.

• Optimized side_chain function.

Voiceover Process

• Audio length trimming and TTS are now combined into one process to increase performance.
• Now a subfolder _result_working_dir is created in which separate already fitted subtitle lines are saved, after which all parts are glued together with ffmpeg. Due to this, memory consumption is significantly reduced.
• moviepy is no longer a dependency, ffmpeg output is parsed instead

FFmpeg Wrapper

• Now all arguments are converted to strings before calling check_call

3.2.0

CLI

• Omitted optional type=str arguments.
• Changed BooleanOptionalAction logic, both --no- and -n- negation are now available.
• The --cleanup-audio argument is now BooleanOptionalAction (default True), --cleanup-level has been removed.
• Argument --voice-set-anchor (also !: by default).
• --audio-format argument for output audio (default wav).
• The --sidechain argument has been renamed to --side-chain.
• Added shorthand to --traceback argument - -tb.

Voiceover Process

• Bugfix.
• Optimization of track length fitting (Fitting).

TTS

• anchor argument (see --voice-set-anchor).
• Voice change optimization.

Submodules

YouTube

• When multi-loading, fully loaded videos are removed from the screen (so as not to take up space in vain).