python-ffmpeg

A python interface for FFmpeg using asyncio

Requirements

Python 3.5+
pyee

Installation

pip install python-ffmpeg

Usage

import asyncio
from ffmpeg import FFmpeg

ffmpeg = FFmpeg().option('y').input(
    'rtsp://example.com/cam',
    # Specify file options using kwargs
    rtsp_transport='tcp',
    rtsp_flags='prefer_tcp',
).output(
    'output.ts',
    # Use a dictionary when an option name contains special characters
    {'codec:v': 'copy'},
    f='mpegts',
)

@ffmpeg.on('start')
def on_start(arguments):
    print('Arguments:', arguments)

@ffmpeg.on('stderr')
def on_stderr(line):
    print('stderr:', line)

@ffmpeg.on('progress')
def on_progress(progress):
    print(progress)

@ffmpeg.on('progress')
def time_to_terminate(progress):
    # Gracefully terminate when more than 200 frames are processed
    if progress.frame > 200:
        ffmpeg.terminate()

@ffmpeg.on('completed')
def on_completed():
    print('Completed')

@ffmpeg.on('terminated')
def on_terminated():
    print('Terminated')

@ffmpeg.on('error')
def on_error(code):
    print('Error:', code)

loop = asyncio.get_event_loop()
loop.run_until_complete(ffmpeg.execute())
loop.close()

API

FFmpeg

init(executable='ffmpeg')

executable: the path to the ffmpeg executable

Initializes the FFmpeg instance.

option(key, value=None)

key
value

Specifies a global option -key or -key value

input(url, options=None, **kwargs)

url
options
kwargs

Specifies an input file. An arbitrary number of input files can be specified by calling this method multiple times.

output(url, options=None, **kwargs)

url
options
kwargs

Specifies an output file. An arbitrary number of output files can be specified by calling this method multiple times.

execute()

Executes FFmpeg using specified options and files.

terminate()

Gracefully terminates the running FFmpeg process.

on(event, listener=None)

event: the name of the event
listener: the callback function

Registers the listener to the event. This method can be used as a decorator.

Event: 'start'

arguments: a sequence of arguments to execute FFmpeg

The 'start' event is emitted just before FFmpeg is executed.

Event: 'stderr'

line

The 'stderr' event is emitted when FFmpeg writes a line to stderr.

Event: 'progress'

progress: a namedtuple with frame, fps, size, time, bitrate, speed fields

The 'progress' event is emitted when FFmpeg reports progress.

Event: 'completed'

The 'completed' event is emitted when FFmpeg is successfully exited.

Event: 'terminated'

The 'terminated' event is emitted when FFmpeg is terminated by calling FFmpeg.terminate().

Event: 'error'

code: a return code of the FFmpeg process

The 'error' event is emitted when FFmpeg is exited with a non-zero return code

Development Status
- 4 - Beta
Intended Audience
- Developers
Programming Language

Release files for python-ffmpeg 1.0.12

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for python-ffmpeg 1.0.12
File	Size	Uploaded
python-ffmpeg-1.0.12.tar.gz	4.9 kB	Jan 25, 2022	Details

Built distribution (wheel)

Table of built distributions (wheels) for python-ffmpeg 1.0.12
File	Interpreter	ABI	Platform	Reset
python_ffmpeg-1.0.12-py3-none-any.whl 5.6 kB Jan 25, 2022	Python 3	none	any	Details

Total release size: 10.5 kB

Release files / python-ffmpeg-1.0.12.tar.gz

Download URL	python-ffmpeg-1.0.12.tar.gz
Size	4.9 kB
Tags	Source
SHA-256 checksum How to use checksums	`965b31e0b9bba7075f26ed1ff100bf4ecd712503c3ba434349646b76ff19a23c`
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Release files / python_ffmpeg-1.0.12-py3-none-any.whl

Download URL	python_ffmpeg-1.0.12-py3-none-any.whl
Size	5.6 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`2c4e294d297741de1e844f7e96f990623f1f6d6883d677bfa4457907b45db64b`
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Upload date	Jan 25, 2022
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Uploaded via	`twine/3.7.1 importlib_metadata/4.10.1 pkginfo/1.8.2 requests/2.27.1 requests-toolbelt/0.9.1 tqdm/4.62.3 CPython/3.9.10`