mirror of
https://github.com/kkroening/ffmpeg-python.git
synced 2025-04-06 04:15:44 +08:00
91 lines
2.4 KiB
Python
91 lines
2.4 KiB
Python
from __future__ import unicode_literals
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from .nodes import (
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filter_operator,
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GlobalNode,
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InputNode,
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MergeOutputsNode,
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OutputNode,
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output_operator,
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SourceNode)
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def input(filename, **kwargs):
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"""Input file URL (ffmpeg ``-i`` option)
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Official documentation: `Main options <https://ffmpeg.org/ffmpeg.html#Main-options>`__
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"""
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kwargs['filename'] = filename
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fmt = kwargs.pop('f', None)
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if fmt:
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if 'format' in kwargs:
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raise ValueError("Can't specify both `format` and `f` kwargs")
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kwargs['format'] = fmt
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return InputNode(input.__name__, kwargs=kwargs).stream()
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def source_multi_output(filter_name, *args, **kwargs):
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"""Apply custom filter with one or more outputs.
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This is the same as ``filter_`` except that the filter can produce more than one output.
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To reference an output stream, use either the ``.stream`` operator or bracket shorthand:
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Example:
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```
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split = ffmpeg.input('in.mp4').filter_multi_output('split')
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split0 = split.stream(0)
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split1 = split[1]
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ffmpeg.concat(split0, split1).output('out.mp4').run()
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```
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"""
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return SourceNode(filter_name, args=args, kwargs=kwargs)
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def source(filter_name, *args, **kwargs):
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return source_multi_output(filter_name, *args, **kwargs).stream()
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@output_operator()
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def overwrite_output(stream):
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"""Overwrite output files without asking (ffmpeg ``-y`` option)
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Official documentation: `Main options <https://ffmpeg.org/ffmpeg.html#Main-options>`__
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"""
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return GlobalNode(stream, overwrite_output.__name__).stream()
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@output_operator()
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def merge_outputs(*streams):
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"""Include all given outputs in one ffmpeg command line
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"""
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return MergeOutputsNode(streams, merge_outputs.__name__).stream()
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@filter_operator()
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def output(stream, filename, **kwargs):
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"""Output file URL
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Official documentation: `Synopsis <https://ffmpeg.org/ffmpeg.html#Synopsis>`__
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"""
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kwargs['filename'] = filename
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fmt = kwargs.pop('f', None)
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if fmt:
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if 'format' in kwargs:
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raise ValueError("Can't specify both `format` and `f` kwargs")
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kwargs['format'] = fmt
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return OutputNode(stream, output.__name__, kwargs=kwargs).stream()
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__all__ = [
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'input',
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'source_multi_output',
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'source',
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'merge_outputs',
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'output',
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'overwrite_output',
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]
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