diff --git a/index.html b/index.html index 32f87d9..e50d089 100644 --- a/index.html +++ b/index.html @@ -427,7 +427,7 @@

ffplay -f lavfi "amovie='input.mp3',astats=metadata=1:reset=1,adrawgraph=lavfi.astats.Overall.Peak_level:max=0:min=-30.0:size=700x256:bg=Black[out]"

ffplay
starts the command
-
-f lavfi
tells ffmpeg to use the Libavfilter input virtual device [more]
+
-f lavfi
tells ffmpeg to use the Libavfilter input virtual device
"
quotation mark to start command
movie='input.mp3'
declares audio source file on which to apply filter
,
comma signifies the end of audio source section and the beginning of the filter section
@@ -435,7 +435,7 @@
:
divides beteen options of the same filter
reset=1
tells the filter to calculate the stats on every frame (increasing this number would calculate stats for groups of frames)
,
comma divides one filter in the chain from another
-
adrawgraph=lavfi.astats.Overall.Peak_level:max=0:min=-30.0
draws a graph using the overall peak volume calculated by the astats filter. It sets the max for the graph to 0 (dB) and the minimum to -30 (dB). For more options on data points that can be graphed see [more]
+
adrawgraph=lavfi.astats.Overall.Peak_level:max=0:min=-30.0
draws a graph using the overall peak volume calculated by the astats filter. It sets the max for the graph to 0 (dB) and the minimum to -30 (dB). For more options on data points that can be graphed see the ffmpeg astats documentation
size=700x256:bg=Black
sets the background color and size of the output
[out]
ends the filterchain and sets the output
"
quotation mark to close command
@@ -461,7 +461,7 @@

ffplay -f lavfi "movie='input.mp4',signalstats=out=brng:color=cyan[out]"

ffplay
starts the command
-
-f lavfi
tells ffmpeg to use the Libavfilter input virtual device [more]
+
-f lavfi
tells ffmpeg to use the Libavfilter input virtual device
"
quotation mark to start command
movie='input.mp4'
declares video file source to apply filter
,
comma signifies closing of video source assertion and ready for filter assertion
@@ -525,7 +525,7 @@
ffprobe
starts the command
-show_entries
sets a list of entries to show
frame_tags=lavfi.ocr.text
shows the lavfi.ocr.text tag in the frame section of the video
-
-f lavfi
tells ffmpeg to use the Libavfilter input virtual device [more]
+
-f lavfi
tells ffmpeg to use the Libavfilter input virtual device
-i "movie=input_file,ocr"
declares 'movie' as input_file and passes in the 'ocr' command
@@ -552,7 +552,6 @@
input_file
path, name and extension of the input file
-vf
creates a filtergraph to use for the streams
"
quotation mark to start command
-
,
comma signifies there is another parameter coming
split=2[m][v]
Splits the input into two identical outputs and names them [m] and [v]
,
comma signifies there is another parameter coming
[v]vectorscope=b=0.7:m=color3:g=green[v]
asserts usage of the vectorscope filter and sets a light background opacity (b, alias for bgopacity), sets a background color style (m, alias for mode), and graticule color (g, alias for graticule)