8000 Update examples README.md by kkroening · Pull Request #89 · kkroening/ffmpeg-python · GitHub
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Jun 2, 2018
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Update examples README.md #89

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kkroening Jun 2, 2018
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kkroening Jun 2, 2018
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kkroening Jun 2, 2018
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Update examples readme
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@kkroening
kkroening authored Jun 2, 2018
commit 5af85c889d2c6fa5af7f133366e698dafaf9dbd0
50 changes: 49 additions & 1 deletion examples/README.md
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# Examples

## [Get video info](https://github.com/kkroening/ffmpeg-python/blob/master/examples/video_info.py)
## [Get video info](https://github.com/kkroening/ffmpeg-python/blob/master/examples/video_info.py#L15)

```python
probe = ffmpeg.probe(args.in_filename)
video_stream = next((stream for stream in probe['streams'] if stream['codec_type'] == 'video'), None)
width = int(video_stream['width'])
height = int(video_stream['height'])
```

## [Convert video to numpy array](https://github.com/kkroening/ffmpeg-python/blob/master/examples/ffmpeg-numpy.ipynb)

```python
out, _ = (
ffmpeg
.input('in.mp4')
.output('pipe:', format='rawvideo', pix_fmt='rgb24')
.run(capture_stdout=True)
)
video = (
np
.frombuffer(out, np.uint8)
.reshape([-1, height, width, 3])
)
```

## [Generate thumbnail for video](https://github.com/kkroening/ffmpeg-python/blob/master/examples/get_video_thumbnail.py#L21)
```python
(
ffmpeg
.input(in_filename, ss=time)
.filter_('scale', width, -1)
.output(out_filename, vframes=1)
.run()
)
```

## [Read single video frame as jpeg through pipe](https://github.com/kkroening/ffmpeg-python/blob/master/examples/read_frame_as_jpeg.py#L16)
```python
out, _ = (
ffmpeg
.input(in_filename)
.filter_('select', 'gte(n,{})'.format(frame_num))
.output('pipe:', vframes=1, format='image2', vcodec='mjpeg')
.run(capture_output=True)
)
```

## [Convert sound to raw PCM audio](https://github.com/kkroening/ffmpeg-python/blob/master/examples/transcribe.py#L23)
```python
out, _ = (ffmpeg
.input(in_filename, **input_kwargs)
.output('-', format='s16le', acodec='pcm_s16le', ac=1, ar='16k')
.overwrite_output()
.run(capture_stdout=True)
)
```
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