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ffmpeg: make -lavfi an alias for -filter_complex.

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This commit is contained in:
Nicolas George 2013-03-16 17:08:33 +01:00
parent 975fbd43ad
commit 40ea006b76
2 changed files with 9 additions and 0 deletions
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7
doc/ffmpeg.texi
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@ -167,6 +167,8 @@ Complex filtergraphs are configured with the @option{-filter_complex} option.
Note that this option is global, since a complex filtergraph by its nature Note that this option is global, since a complex filtergraph by its nature
cannot be unambiguously associated with a single stream or file. cannot be unambiguously associated with a single stream or file.
The @option{-lavfi} option is equivalent to @option{-filter_complex}.
A trivial example of a complex filtergraph is the @code{overlay} filter, which A trivial example of a complex filtergraph is the @code{overlay} filter, which
has two video inputs and one video output, containing one video overlaid on top has two video inputs and one video output, containing one video overlaid on top
of the other. Its audio counterpart is the @code{amix} filter. of the other. Its audio counterpart is the @code{amix} filter.
@ -1032,6 +1034,11 @@ To generate 5 seconds of pure red video using lavfi @code{color} source:
@example @example
ffmpeg -filter_complex 'color=c=red' -t 5 out.mkv ffmpeg -filter_complex 'color=c=red' -t 5 out.mkv
@end example @end example
@item -lavfi @var{filtergraph} (@emph{global})
Define a complex filter graph, i.e. one with arbitrary number of inputs and/or
outputs. Equivalent to @option{-filter_complex}.
@end table @end table
As a special exception, you can use a bitmap subtitle stream as input: it As a special exception, you can use a bitmap subtitle stream as input: it

2
ffmpeg_opt.c
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@ -2603,6 +2603,8 @@ const OptionDef options[] = {
"reinit filtergraph on input parameter changes", "" }, "reinit filtergraph on input parameter changes", "" },
{ "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex }, { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
"create a complex filtergraph", "graph_description" }, "create a complex filtergraph", "graph_description" },
{ "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
"create a complex filtergraph", "graph_description" },
{ "stats", OPT_BOOL, { &print_stats }, { "stats", OPT_BOOL, { &print_stats },
"print progress report during encoding", }, "print progress report during encoding", },
{ "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT | { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |