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@ -32,7 +32,7 @@ import ffmpeg
)
```
## [[API reference]](https://kkroening.github.io/ffmpeg-python/)
## [API reference](https://kkroening.github.io/ffmpeg-python/)
## Complex filter graphs
FFmpeg is extremely powerful, but its command-line interface gets really complicated rather quickly - especially when working with signal graphs and doing anything more than trivial.
@ -51,7 +51,7 @@ ffmpeg -i input.mp4 -i overlay.png -filter_complex "[0]trim=start_frame=10:end_f
Maybe this looks great to you, but if you're not an FFmpeg command-line expert, it probably looks alien.
If you're like me and find Python to be powerful and readable, it's easy with `ffmpeg-python`:
If you're like me and find Python to be powerful and readable, it's easier with `ffmpeg-python`:
```python
import ffmpeg
@ -70,28 +70,24 @@ overlay_file = ffmpeg.input('overlay.png')
)
```
`ffmpeg-python` takes care of running `ffmpeg` with the command-line arguments that correspond to the above filter diagram, and it's easy to see what's going on and make changes as needed.
`ffmpeg-python` takes care of running `ffmpeg` with the command-line arguments that correspond to the above filter diagram, in familiar Python terms.
<img src="https://raw.githubusercontent.com/kkroening/ffmpeg-python/master/doc/screenshot.png" alt="Screenshot" align="middle" width="60%" />
Real-world signal graphs can get a heck of a lot more complex, but `ffmpeg-python` handles them with ease.
Real-world signal graphs can get a heck of a lot more complex, but `ffmpeg-python` handles arbitrarily large (directed-acyclic) signal graphs.
## Installation
The latest version of `ffmpeg-python` can be acquired via pip:
The latest version of `ffmpeg-python` can be acquired via a typical pip install:
```
pip install ffmpeg-python
```
It's also possible to clone the source and put it on your python path (`$PYTHONPATH`, `sys.path`, etc.):
Or clone the source and install locally:
```bash
$ git clone git@github.com:kkroening/ffmpeg-python.git
$ export PYTHONPATH=${PYTHONPATH}:ffmpeg-python
$ python
>>> import ffmpeg
git clone git@github.com:kkroening/ffmpeg-python.git
pip install -e ./ffmpeg-python
```
## [Examples](https://github.com/kkroening/ffmpeg-python/tree/master/examples)
@ -166,7 +162,7 @@ Some ffmpeg filters drop audio streams, and care must be taken to preserve the a
This dilemma is intrinsic to ffmpeg, and ffmpeg-python tries to stay out of the way while users may refer to the official ffmpeg documentation as to why certain filters drop audio.
As usual, take a look at the [Examples](https://github.com/kkroening/ffmpeg-python/tree/master/examples#audiovideo-pipeline) (the "Audio/video pipeline" example in particular).
As usual, take a look at the [examples](https://github.com/kkroening/ffmpeg-python/tree/master/examples#audiovideo-pipeline) (*Audio/video pipeline* in particular).
## Contributing
@ -180,6 +176,18 @@ Pull requests are welcome as well, but it wouldn't hurt to touch base in the iss
Anyone who fixes any of the [open bugs](https://github.com/kkroening/ffmpeg-python/labels/bug) or implements [requested enhancements](https://github.com/kkroening/ffmpeg-python/labels/enhancement) is a hero, but changes should include passing tests.
### Running tests
```bash
git clone git@github.com:kkroening/ffmpeg-python.git
cd ffmpeg-python
virtualenv venv
. venv/bin/activate # (OS X / Linux)
venv\bin\activate # (Windows)
pip install -e .[dev]
pytest
```
<br />
### Special thanks