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authorAnton Khirnov <anton@khirnov.net>2012-04-03 08:32:23 +0200
committerAnton Khirnov <anton@khirnov.net>2012-04-15 20:37:47 +0200
commit7ce118bae5cd6b29692e0b3963d48a5610823322 (patch)
treee37fdc7d300202f63596418d259915aac6c519b0 /doc
parent9e8aae443b4b3f377ccb038a6444f4c33dc5dc78 (diff)
doc/filters: update documentation.
Diffstat (limited to 'doc')
-rw-r--r--doc/filters.texi18
1 files changed, 8 insertions, 10 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index f0367bfdc2..b012dc791f 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -17,10 +17,11 @@ output pads is called a "sink".
@anchor{Filtergraph syntax}
@section Filtergraph syntax
-A filtergraph can be represented using a textual representation, which
-is recognized by the @code{-vf} and @code{-af} options in @command{avconv}
-and @command{avplay}, and by the @code{av_parse_graph()} function defined in
-@file{libavfilter/avfiltergraph}.
+A filtergraph can be represented using a textual representation, which is
+recognized by the @option{-filter}/@option{-vf} and @option{-filter_complex}
+options in @command{avconv} and @option{-vf} in @command{avplay}, and by the
+@code{avfilter_graph_parse()}/@code{avfilter_graph_parse2()} function defined in
+@file{libavfilter/avfiltergraph.h}.
A filterchain consists of a sequence of connected filters, each one
connected to the previous one in the sequence. A filterchain is
@@ -1125,15 +1126,12 @@ Follow some examples:
overlay=main_w-overlay_w-10:main_h-overlay_h-10
# insert a transparent PNG logo in the bottom left corner of the input
-movie=logo.png [logo];
-[in][logo] overlay=10:main_h-overlay_h-10 [out]
+avconv -i input -i logo -filter_complex 'overlay=10:main_h-overlay_h-10' output
# insert 2 different transparent PNG logos (second logo on bottom
# right corner):
-movie=logo1.png [logo1];
-movie=logo2.png [logo2];
-[in][logo1] overlay=10:H-h-10 [in+logo1];
-[in+logo1][logo2] overlay=W-w-10:H-h-10 [out]
+avconv -i input -i logo1 -i logo2 -filter_complex
+'overlay=10:H-h-10,overlay=W-w-10:H-h-10' output
# add a transparent color layer on top of the main video,
# WxH specifies the size of the main input to the overlay filter