- beautifulsoup4
- internetarchive
- pytube
- scipy
- twitch-python
- twitter-scraper
- scrapy / shub
Clone or download the repository. If downloaded, unzip / extract it.
Change directories into the repository folder:
cd /path/to/web-api-tools
where /path/to/web-api-tools is the path to the repository folder.
To run:
docker-compose run web_api_tools
For convenience the repository directory is mounted to the /working directory in the container. You can move files and sub-folders into the repository folder if you wish to manipulate them, or save new files to the /working directory to persist them onto the host machine. You can also mount another volume with the following command:
docker-compose run -v /path/to/new/dir:/my-dir
where /path/to/new/dir is the absolute path to the folder you want to mount on the host machine (hint - you can drag and drop the folder into your shell to get the absolute path) and /my-dir is the absolute path mounted in the container.
#Using default settings w/ default codec library
ffmpeg -i /path/to/input /path/to/output
#Specifying a codec library
ffmpeg -i /path/to/input -c:v libx264 /path/to/output
#Using constant rate factor (visually lossless)
ffmpeg -i /path/to/input -c:v libx264 -crf 18 /path/to/output
#Creating a webm file
ffmpeg -i /path/to/input -c:v libvpx -crf 23 -b:v 1M -c:a libvorbis /path/to/output.webm #where -b:v is the max bitrate
#Creating an H.264 file
ffmpeg -i /path/to/input -c:v libx264 -crf 23 -strict -2 -pix_fmt yuv420p -movflags faststart /path/to/output.mp4
#Copy video stream and transcode audio stream
ffmpeg -i /path/to/input -c:v copy -c:a aac -strict -2 /path/to/output.mp4
#Remove audio
ffmpeg -i /path/to/input -c:v copy -an /path/to/output.mp4 #audio null
#Export audio and video to separate files
ffmpeg -i /path/to/input -map 0:0 /path/to/output.mp4 -map 0:1 /path/to/output.wav #defaults to 16 bit pcm
#Export sections of a video
ffmpeg -i /path/to/input -ss 00:00:00 -to 00:00:30 -c:v libx264 /path/to/output #export first 30 seconds of a video
#Export a single frame as an image
ffmpeg -i /path/to/input -ss 00:00:14.435 -vframes 1 /path/to/output.png
#Altering framerates / time bases
ffmpeg -i /path/to/input -c:v libx264 -vf setpts=0.5*PTS /path/to/output.mp4
# Alters the actual presentation time stamp so that the playback is 2x faster
ffmpeg -i /path/to/input -c:v libx264 -vf setpts=2.0*PTS /path/to/output.mp4
# Alters the presentation time stamp so the playback is 2x slower
#Scale
ffmpeg -i /path/to/input -c:v libx264 -vf scale=1920:1080 /path/to/output.mp4 #w:h
#Crop
ffmpeg -i /path/to/input -c:v libx264 -vf crop=100:100:0:0 /path/to/output.mp4
# will crop a video to 100x100 square starting in the top left corner (crop=w:h:x_start:y_start)
#Chaining filters
ffmpeg -i /path/to/input -c:v libx264 -vf scale=100:100,crop=100:100:0:0 /path/to/output.mp4
#Batch process files
for x in *.avi; do
ffmpeg -i $x -c:v libx264 -strict -2 ${x%.avi}.mp4;
done
# Spectrogram
ffmpeg -i my_audio.mp3 -filter_complex [0:a]showspectrum=s=1280x720=color -map 0:a -pix_fmt yuv420p -strict -2 spectrogram.mp4
# Waveform
ffmpeg -i my_audio.mp3 -filter_complex [0:a]showwaves=s=1280x720:mode=line:split_channels=1 -map 0:a -pix_fmt yuv420p -strict -2 waveform.mp4
# Audio Vectorscope
ffmpeg -i my_audio.mp3 -filter_complex [0:a]avectorscope=s=1280x720:zoom=2.5 -map 0:a -pix_fmt yuv420p -strict -2 vectorscope.mp4
# Image Vectorscope
ffmpeg -i my_video.mp4 -filter_complex [0:v]vectorscope=mode=color4,scale=1280x720 -map 0:v -pix_fmt yuv420p -strict -2
color_vectorscope.mp4
Basic conversion
convert /path/to/image.jpg /path/to/image.png
Setting the quality
convert /path/to/image.jpg -quality 75 /path/to/image.png
Rotating images (rotates 90deg clockwise)
convert /path/to/image.jpg -rotate 90 /path/to/image.png
Resizing / scaling images (resizes to 50% of original size)
convert /path/to/image.jpg -resize 50 /path/to/image.png
Cropping images (crops 100px x 100px square from top left corner)
convert /path/to/image.jpg -crop 100x100+0+0 /path/to/image.png
Denoise an image (with an aggression level of 5)
convert /path/to/image.jpg -noise 5 /path/to/image.png
Sharpen an image (with an aggression level of 5)
convert /path/to/image.jpg -sharpen 5 /path/to/image.png
Add contrast to an image
convert /path/to/image.jpg -contrast /path/to/image.png
Display technical metadata
identify /path/to/image.jpg
Produce a histogram
convert /path/to/image.jpg histogram:/path/to/image.png
Basic conversion
sox /path/to/audio.wav /path/to/audio.mp3
Setting the sample rate (48kHz)
sox -r 48000 /path/to/audio.wav /path/to/audio.mp3
Convert stereo to mono
sox -c 1 /path/to/audio.wav /path/to/audio.mp3
Increase the volume of a file (2x louder)
sox -v 2.0 /path/to/audio.wav /path/to/audio.mp3
Decrease the volume of a file (2x quieter)
sox -v -0.5 /path/to/audio.wav /path/to/audio.mp3
Trim a file (trims a 30 second clip from the beginning of a file )
sox /path/to/audio.wav /path/to/audio.mp3 trim 0 30
Reverse an audio file
sox /path/to/audio.wav /path/to/audio.mp3 reverse
Speed up an audio file (2x faster)
sox /path/to/audio.wav /path/to/audio.mp3 speed 2.0
Speed up an audio file (2x slower)
sox /path/to/audio.wav /path/to/audio.mp3 speed 0.5
Apply a low pass filter (everything below this frequency "passes" through)
sox /path/to/audio.wav /path/to/audio.mp3 lowpass 500
Apply a high pass filter (everything above this frequency "passes" through)
sox /path/to/audio.wav /path/to/audio.mp3 highpass 500
Sox has several effects you can apply (chorus, flanger, echo). The syntax is like this:
sox /path/to/audio.wav /path/to/audio.mp3 [EFFECT NAME] [EFFECT PARAMETERS]
You can find them here: http://sox.sourceforge.net/sox.html
Get some technical metadata on the file
sox --i /path/to/audio.wav
Produce a spectrogram of your file
sox /path/to/audio.wav -n spectrogram -r -o /path/to/image.png