Video Transcoding Scripts for Linux

These are bash scripts for transcoding video files using the free open source package ffmpeg. Ffmpeg is used because its efficiency, speed, and encoding quality far surpass anything commercially available. The scripts are structurally similar, but vary by the output screen dimensions, codec, and frame rate of the output videos.

Getting Started

These instructions will tell you everything you need to know to quickly and easily transcode your videos in preparation for deployment to hosting sites like YouTube or Vimeo, or to HTML5 sites.

Prerequisities

To use the scripts you will need

A system such as linux that allows you to run bash from the command line
ffmpeg
qt-faststart

Installing

After cloning the repository, go to the scripts directory and copy the script files to /usr/local/bin

sudo cp * /usr/local/bin

Running the scripts

Run the scripts with any number of arguments. All files matching the filespecs given by the arguments will be transcoded. The output filenames will match the bases of input filenames, but with screen dimensions and appropriate filetype endings. For example

mp4ify1080 video1.mov

creates the output file video1.1920x1080.mp4

In a directory containing

sequence-a.v1.mov
sequence-a.v2.mov
sequence-b.v2.mov

running the following:

mp4ify750 *.v2.mov

results in the creation of the transcoded video files

sequence-a.v2.1280x720.mp4
sequence-a.v2.1280x720.mp4

The scripts

mp4ify1080 creates a 1920x1080 23.976 fps h.264 / aac encoding in a .mp4 container
mp4ify1080-25 creates a 1920x1080 25 fps h.264 / aac encoding in a .mp4 container
mp4ify1080-30 creates a 1920x1080 29.97 fps h.264 / aac encoding in a .mp4 container
mp4ify360 creates a 640x360 23.976 fps h.264 / aac encoding in a .mp4 container
mp4ify360-25 creates a 640x360 25 fps h.264 / aac encoding in a .mp4 container
mp4ify360-30 creates a 640x360 29.97 fps h.264 / aac encoding in a .mp4 container
mp4ify360bitc creates a 640x360 23.976 fps h.264 / aac encoding with burn-in timecode in a .mp4 container
mp4ify360bitc-25 creates a 640x360 25fps h.264 / aac encoding with burn-in timecode in a .mp4 container
mp4ify720 creates a 1280x720 23.976 fps h.264 / aac encoding in a .mp4 container
mp4ify720bitc creates a 1280x720 23.976 fps h.264 / aac encoding with burn-in timecode in a .mp4 container
ogvify720 creates a 1280x720 23.976 fps Theora / Vorbis encoding in a .ogv container
ogvify720-30 creates a 1280x720 29.97 fps Theora / Vorbis encoding in a .ogv container
webmify720 creates a 1280x720 23.976 fps VP9 / Vorbis encoding in a .WebM container
webmify720-30 creates a 1280x720 9.97 fps VP9 / Vorbis encoding in a .WebM container

Authors

George Cohn - Initial work - https://github.com/GeoCohn

License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

slrslr / Video-Transcoding-Scripts