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ffmpeg.c: document default metadata mappings

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Originally committed as revision 25795 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Anton Khirnov 2010-11-22 07:32:27 +00:00
parent 477b1aeac9
commit fb3d8c23cc
1 changed files with 6 additions and 0 deletions
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doc/ffmpeg-doc.texi
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@ -625,6 +625,12 @@ Optional @var{metadata} parameters specify, which metadata to copy - (g)lobal
per-(p)rogram. All metadata specifiers other than global must be followed by the per-(p)rogram. All metadata specifiers other than global must be followed by the
stream/chapter/program number. If metadata specifier is omitted, it defaults to stream/chapter/program number. If metadata specifier is omitted, it defaults to
global. global.
By default, global metadata is copied from the first input file to all output files,
per-stream and per-chapter metadata is copied along with streams/chapters. These
default mappings are disabled by creating any mapping of the relevant type. A negative
file index can be used to create a dummy mapping that just disables automatic copying.
For example to copy metadata from the first stream of the input file to global metadata For example to copy metadata from the first stream of the input file to global metadata
of the output file: of the output file:
@example @example