FFmpex

An Elixir wrapper for the FFmpeg command line interface.

Documentation: https://hexdocs.pm/ffmpex/

Examples

alias FFmpex.StreamSpecifier

import FFmpex
import FFmpex.Options.Main
import FFmpex.Options.Video.Libx264

command =
  FFmpex.new_command
  |> add_global_option(option_y)
  |> add_input_file("/path/to/input.avi")
  |> add_output_file("/path/to/output.avi")
    |> add_stream_specifier(%StreamSpecifier{stream_type: :video})
      |> add_stream_option(option_b("64k"))
    |> add_file_option(option_maxrate("128k"))
    |> add_file_option(option_bufsize("64k"))

system_cmd_result = execute(command)
{_, 0} = system_cmd_result

You can use the FFprobe module to query for file info:

FFprobe.duration("/path/to/input.avi")
# => result in seconds, e.g., 228.456939

Prerequisites

FFmpeg must be installed.

Installation

1. Add ffmpex to your list of dependencies in mix.exs:

```elixir
def deps do
  [{:ffmpex, "~> 0.2.1"}]
end
```

1. Ensure ffmpex is started before your application:

```elixir
def application do
  [applications: [:ffmpex]]
end
```

Configuration

You can specify some options in config.exs:

config :ffmpex, ffmpeg_path: "/path/to/ffmpeg"
config :ffmpex, ffprobe_path: "/path/to/ffprobe"

Release notes

See the changelog for changes between versions.

Disclaimer

FFmpex is not affiliated with nor endorsed by the FFmpeg project.

FFmpeg is a trademark of Fabrice Bellard, originator of the FFmpeg project.

License

FFmpex source code is licensed under the MIT License.