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Karl Kroening 2018-07-13 03:52:30 +02:00
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14
README.md
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@ -23,7 +23,8 @@ ffmpeg.run(stream)
Or if you prefer a fluent interface:
```python
import ffmpeg
(ffmpeg
(
ffmpeg
.input('input.mp4')
.hflip()
.output('output.mp4')
@ -54,7 +55,8 @@ import ffmpeg
in_file = ffmpeg.input('input.mp4')
overlay_file = ffmpeg.input('overlay.png')
(ffmpeg
(
ffmpeg
.concat(
in_file.trim(start_frame=10, end_frame=20),
in_file.trim(start_frame=30, end_frame=40),
@ -117,7 +119,7 @@ Alternatively, standard python help is available, such as at the python REPL pro
## Custom Filters
Don't see the filter you're looking for? `ffmpeg-python` includes , but it's easy to use any arbitrary ffmpeg filter:
Don't see the filter you're looking for? `ffmpeg-python` includes shorthand notation for some of the most commonly used filters (such as `concat`), but it's easy to use any arbitrary ffmpeg filter:
```python
stream = ffmpeg.input('dummy.mp4')
stream = ffmpeg.filter_(stream, 'fps', fps=25, round='up')
@ -127,7 +129,8 @@ ffmpeg.run(stream)
Or fluently:
```python
(ffmpeg
(
ffmpeg
.input('dummy.mp4')
.filter_('fps', fps=25, round='up')
.output('dummy2.mp4')
@ -137,7 +140,8 @@ Or fluently:
Arguments with special names such as `-qscale:v` can be specified as a keyword-args dictionary as follows:
```python
(ffmpeg
(
ffmpeg
.input('dummy.mp4')
.output('dummy2.mp4', **{'qscale:v': 3})
.run()

38
examples/README.md
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@ -1,6 +1,6 @@
# Examples
## [Get video info](https://github.com/kkroening/ffmpeg-python/blob/master/examples/video_info.py#L15)
## [Get video info (ffprobe)](https://github.com/kkroening/ffmpeg-python/blob/master/examples/video_info.py#L15)
```python
probe = ffmpeg.probe(args.in_filename)
@ -23,24 +23,6 @@ height = int(video_stream['height'])
)
```
## Process audio and video simultaneously
<img src="https://raw.githubusercontent.com/kkroening/ffmpeg-python/master/examples/graphs/av-pipeline.png" alt="av-pipeline graph" width="80%" />
```python
in1 = ffmpeg.input('in1.mp4')
in2 = ffmpeg.input('in2.mp4')
v1 = in1['v'].hflip()
a1 = in1['a']
v2 = in2['v'].filter_('reverse').filter_('hue', s=0)
a2 = in2['a'].filter_('areverse').filter_('aphaser')
joined = ffmpeg.concat(v1, a1, v2, a2, v=1, a=1).node
v3 = joined[0]
a3 = joined[1].filter_('volume', 0.8)
out = ffmpeg.output(v3, a3, 'out.mp4')
out.run()
```
## [Convert video to numpy array](https://github.com/kkroening/ffmpeg-python/blob/master/examples/ffmpeg-numpy.ipynb)
<img src="https://raw.githubusercontent.com/kkroening/ffmpeg-python/master/examples/graphs/ffmpeg-numpy.png" alt="ffmpeg-numpy graph" width="20%" />
@ -86,6 +68,24 @@ out, _ = (ffmpeg
)
```
## Audio/video pipeline
<img src="https://raw.githubusercontent.com/kkroening/ffmpeg-python/master/examples/graphs/av-pipeline.png" alt="av-pipeline graph" width="80%" />
```python
in1 = ffmpeg.input('in1.mp4')
in2 = ffmpeg.input('in2.mp4')
v1 = in1['v'].hflip()
a1 = in1['a']
v2 = in2['v'].filter_('reverse').filter_('hue', s=0)
a2 = in2['a'].filter_('areverse').filter_('aphaser')
joined = ffmpeg.concat(v1, a1, v2, a2, v=1, a=1).node
v3 = joined[0]
a3 = joined[1].filter_('volume', 0.8)
out = ffmpeg.output(v3, a3, 'out.mp4')
out.run()
```
## [Jupyter Frame Viewer](https://github.com/kkroening/ffmpeg-python/blob/master/examples/ffmpeg-numpy.ipynb)
<img src="https://raw.githubusercontent.com/kkroening/ffmpeg-python/master/doc/jupyter-screenshot.png" alt="jupyter screenshot" width="75%" />