Commit fb3d8c23 authored by Anton Khirnov's avatar Anton Khirnov
Browse files

ffmpeg.c: document default metadata mappings

Originally committed as revision 25795 to svn://
parent 477b1aea
......@@ -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
stream/chapter/program number. If metadata specifier is omitted, it defaults to
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
of the output file:
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