mirror of
https://github.com/kkroening/ffmpeg-python.git
synced 2025-04-05 20:11:11 +08:00
94 lines
2.4 KiB
Python
94 lines
2.4 KiB
Python
from __future__ import unicode_literals
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from ._utils import basestring
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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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OutputStream)
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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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@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(*streams_and_filename, **kwargs):
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"""Output file URL
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Syntax:
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`ffmpeg.output(stream1[, stream2, stream3...], filename, **ffmpeg_args)`
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If multiple streams are provided, they are mapped to the same output.
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Official documentation: `Synopsis <https://ffmpeg.org/ffmpeg.html#Synopsis>`__
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"""
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streams_and_filename = list(streams_and_filename)
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if 'filename' not in kwargs:
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if not isinstance(streams_and_filename[-1], basestring):
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raise ValueError('A filename must be provided')
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kwargs['filename'] = streams_and_filename.pop(-1)
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streams = streams_and_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(streams, output.__name__, kwargs=kwargs).stream()
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@output_operator()
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def map(*streams):
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"""Map multiple streams to the same output
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"""
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head = streams[0]
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tail = streams[1:]
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if not isinstance(head, OutputStream):
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raise ValueError('First argument must be an output stream')
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if not tail:
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return head
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return OutputNode(head.node, tail).stream()
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__all__ = [
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'input',
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'merge_outputs',
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'output',
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'map',
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'overwrite_output',
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]
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