ffmpeg/README.md

# Operator: video-decoder

Author: JunJie Jiang

## Overview



## Interface

```python
__init__(self, start_time=None, end_time=None, sample_type=None, args=None)


Args:

- start_time: float

- end_time: float

  decode video from start_time to end_time

-  sample_type: str
  
        uniform_temporal_subsample

-  args: dict
  
      num_samples: int
```      


```python
__call__(self, video_path: str)
```

Args:

- video_path:
  support local path and http/https url.

Returns:

- Image

## Requirements
av


## How it works

```python
from towhee import ops

d = ops.video_decode.ffmpeg(start_time=10.0, end_time=20.0, sample_type='uniform_temporal_subsample', args={'num_samples': 10})
for frame in d(video_path):
    print(frame)

result:
Outputs(image=<towhee.types.image.Image object at 0x7fa444776310>, TIMESTAMP=10010)
Outputs(image=<towhee.types.image.Image object at 0x7fa444776700>, TIMESTAMP=11078)
Outputs(image=<towhee.types.image.Image object at 0x7fa444776310>, TIMESTAMP=12145)
Outputs(image=<towhee.types.image.Image object at 0x7fa444776700>, TIMESTAMP=13280)
Outputs(image=<towhee.types.image.Image object at 0x7fa444776310>, TIMESTAMP=14348)
Outputs(image=<towhee.types.image.Image object at 0x7fa444776700>, TIMESTAMP=15482)
Outputs(image=<towhee.types.image.Image object at 0x7fa444776310>, TIMESTAMP=16550)
Outputs(image=<towhee.types.image.Image object at 0x7fa444776700>, TIMESTAMP=17684)
Outputs(image=<towhee.types.image.Image object at 0x7fa444776310>, TIMESTAMP=18752)
Outputs(image=<towhee.types.image.Image object at 0x7fa444776700>, TIMESTAMP=19887)
```

## Reference