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107 lines
3.6 KiB
ReStructuredText
107 lines
3.6 KiB
ReStructuredText
ENCODING
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========
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You can encode files from one format/codec to another using this facility.
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``--o=<filename>``
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Enables encoding mode and specifies the output file name.
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``--of=<format>``
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Specifies the output format (overrides autodetection by the file name
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extension of the file specified by ``--o``). See ``--of=help`` for a full
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list of supported formats.
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``--ofopts=<options>``
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Specifies the output format options for libavformat.
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See ``--ofopts=help`` for a full list of supported options.
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This is a key/value list option. See `List Options`_ for details.
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``--ofopts-add=<option>``
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Appends the option given as an argument to the options list. (Passing
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multiple options is currently still possible, but deprecated.)
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``--ofopts=""``
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Completely empties the options list.
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``--oac=<codec>``
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Specifies the output audio codec. See ``--oac=help`` for a full list of
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supported codecs.
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``--oacopts=<options>``
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Specifies the output audio codec options for libavcodec.
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See ``--oacopts=help`` for a full list of supported options.
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.. admonition:: Example
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"``--oac=libmp3lame --oacopts=b=128000``"
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selects 128 kbps MP3 encoding.
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This is a key/value list option. See `List Options`_ for details.
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``--oacopts-add=<option>``
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Appends the option given as an argument to the options list. (Passing
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multiple options is currently still possible, but deprecated.)
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``--oacopts=""``
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Completely empties the options list.
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``--ovc=<codec>``
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Specifies the output video codec. See ``--ovc=help`` for a full list of
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supported codecs.
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``--ovcopts=<options>``
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Specifies the output video codec options for libavcodec.
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See --ovcopts=help for a full list of supported options.
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.. admonition:: Examples
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``"--ovc=mpeg4 --ovcopts=qscale=5"``
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selects constant quantizer scale 5 for MPEG-4 encoding.
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``"--ovc=libx264 --ovcopts=crf=23"``
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selects VBR quality factor 23 for H.264 encoding.
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This is a key/value list option. See `List Options`_ for details.
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``--ovcopts-add=<option>``
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Appends the option given as an argument to the options list. (Passing
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multiple options is currently still possible, but deprecated.)
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``--ovcopts=""``
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Completely empties the options list.
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``--orawts``
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Copies input pts to the output video (not supported by some output
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container formats, e.g. AVI). In this mode, discontinuities are not fixed
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and all pts are passed through as-is. Never seek backwards or use multiple
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input files in this mode!
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``--ocopy-metadata=<yes|no>``
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Copy metadata from input files to output files when encoding (default: yes).
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``--oset-metadata=<metadata-tag[,metadata-tag,...]>``
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Specifies metadata to include in the output file.
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Supported keys vary between output formats. For example, Matroska (MKV) and
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FLAC allow almost arbitrary keys, while support in MP4 and MP3 is more
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limited.
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This is a key/value list option. See `List Options`_ for details.
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.. admonition:: Example
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"``--oset-metadata=title="Output title",comment="Another tag"``"
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adds a title and a comment to the output file.
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``--oremove-metadata=<metadata-tag[,metadata-tag,...]>``
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Specifies metadata to exclude from the output file when copying from the
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input file.
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This is a string list option. See `List Options`_ for details.
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.. admonition:: Example
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"``--oremove-metadata=comment,genre``"
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excludes copying of the the comment and genre tags to the output
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file.
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