|
|
|
@ -922,7 +922,7 @@ It accepts the following option: |
|
|
|
|
@table @option |
|
|
|
|
@item length |
|
|
|
|
Short window length in seconds, used for peak and trough RMS measurement. |
|
|
|
|
Default is @code{0.05} (50 miliseconds). Allowed range is @code{[0.1 - 10]}. |
|
|
|
|
Default is @code{0.05} (50 milliseconds). Allowed range is @code{[0.1 - 10]}. |
|
|
|
|
@end table |
|
|
|
|
|
|
|
|
|
A description of each shown parameter follows: |
|
|
|
@ -1465,12 +1465,12 @@ Set base delay in milliseconds. Range from 0 to 30. Default value is 0. |
|
|
|
|
Set added swep delay in milliseconds. Range from 0 to 10. Default value is 2. |
|
|
|
|
|
|
|
|
|
@item regen |
|
|
|
|
Set percentage regeneneration (delayed signal feedback). Range from -95 to 95. |
|
|
|
|
Set percentage regeneration (delayed signal feedback). Range from -95 to 95. |
|
|
|
|
Default value is 0. |
|
|
|
|
|
|
|
|
|
@item width |
|
|
|
|
Set percentage of delayed signal mixed with original. Range from 0 to 100. |
|
|
|
|
Default valu is 71. |
|
|
|
|
Default value is 71. |
|
|
|
|
|
|
|
|
|
@item speed |
|
|
|
|
Set sweeps per second (Hz). Range from 0.1 to 10. Default value is 0.5. |
|
|
|
@ -1875,7 +1875,7 @@ or amplitude ratio. Default value is @code{0}. |
|
|
|
|
@item stop_periods |
|
|
|
|
Set the count for trimming silence from the end of audio. |
|
|
|
|
To remove silence from the middle of a file, specify a @var{stop_periods} |
|
|
|
|
that is negative. This value is then threated as a positive value and is |
|
|
|
|
that is negative. This value is then treated as a positive value and is |
|
|
|
|
used to indicate the effect should restart processing as specified by |
|
|
|
|
@var{start_periods}, making it suitable for removing periods of silence |
|
|
|
|
in the middle of the audio. |
|
|
|
@ -2169,7 +2169,7 @@ The sample rate of the incoming audio buffers. |
|
|
|
|
|
|
|
|
|
@item sample_fmt |
|
|
|
|
The sample format of the incoming audio buffers. |
|
|
|
|
Either a sample format name or its corresponging integer representation from |
|
|
|
|
Either a sample format name or its corresponding integer representation from |
|
|
|
|
the enum AVSampleFormat in @file{libavutil/samplefmt.h} |
|
|
|
|
|
|
|
|
|
@item channel_layout |
|
|
|
@ -2378,7 +2378,7 @@ Set the voice to use for the speech synthesis. Default value is |
|
|
|
|
|
|
|
|
|
@itemize |
|
|
|
|
@item |
|
|
|
|
Read from file @file{speech.txt}, and synthetize the text using the |
|
|
|
|
Read from file @file{speech.txt}, and synthesize the text using the |
|
|
|
|
standard flite voice: |
|
|
|
|
@example |
|
|
|
|
flite=textfile=speech.txt |
|
|
|
@ -3258,7 +3258,7 @@ crop=in_w:1/PHI*in_w |
|
|
|
|
@end example |
|
|
|
|
|
|
|
|
|
@item |
|
|
|
|
Appply trembling effect: |
|
|
|
|
Apply trembling effect: |
|
|
|
|
@example |
|
|
|
|
crop=in_w/2:in_h/2:(in_w-out_w)/2+((in_w-out_w)/2)*sin(n/10):(in_h-out_h)/2 +((in_h-out_h)/2)*sin(n/7) |
|
|
|
|
@end example |
|
|
|
@ -5861,11 +5861,11 @@ The filter accepts the following options: |
|
|
|
|
@table @option |
|
|
|
|
@item cx |
|
|
|
|
Relative x-coordinate of the focal point of the image, and thereby the center of the |
|
|
|
|
distrortion. This value has a range [0,1] and is expressed as fractions of the image |
|
|
|
|
distortion. This value has a range [0,1] and is expressed as fractions of the image |
|
|
|
|
width. |
|
|
|
|
@item cy |
|
|
|
|
Relative y-coordinate of the focal point of the image, and thereby the center of the |
|
|
|
|
distrortion. This value has a range [0,1] and is expressed as fractions of the image |
|
|
|
|
distortion. This value has a range [0,1] and is expressed as fractions of the image |
|
|
|
|
height. |
|
|
|
|
@item k1 |
|
|
|
|
Coefficient of the quadratic correction term. 0.5 means no correction. |
|
|
|
@ -6447,7 +6447,7 @@ libopencv function @code{cvSmooth}. |
|
|
|
|
Overlay one video on top of another. |
|
|
|
|
|
|
|
|
|
It takes two inputs and has one output. The first input is the "main" |
|
|
|
|
video on which the second input is overlayed. |
|
|
|
|
video on which the second input is overlaid. |
|
|
|
|
|
|
|
|
|
It accepts the following parameters: |
|
|
|
|
|
|
|
|
@ -6456,7 +6456,7 @@ A description of the accepted options follows. |
|
|
|
|
@table @option |
|
|
|
|
@item x |
|
|
|
|
@item y |
|
|
|
|
Set the expression for the x and y coordinates of the overlayed video |
|
|
|
|
Set the expression for the x and y coordinates of the overlaid video |
|
|
|
|
on the main video. Default value is "0" for both expressions. In case |
|
|
|
|
the expression is invalid, it is set to a huge value (meaning that the |
|
|
|
|
overlay will not be displayed within the output visible area). |
|
|
|
@ -7333,7 +7333,7 @@ it. Default value is 1. |
|
|
|
|
|
|
|
|
|
@item fillcolor, c |
|
|
|
|
Set the color used to fill the output area not covered by the rotated |
|
|
|
|
image. For the generalsyntax of this option, check the "Color" section in the |
|
|
|
|
image. For the general syntax of this option, check the "Color" section in the |
|
|
|
|
ffmpeg-utils manual. If the special value "none" is selected then no |
|
|
|
|
background is printed (useful for example if the background is never shown). |
|
|
|
|
|
|
|
|
@ -8558,7 +8558,7 @@ more advanced padding options (such as having different values for the edges), |
|
|
|
|
refer to the pad video filter. |
|
|
|
|
|
|
|
|
|
@item color |
|
|
|
|
Specify the color of the unused areaFor the syntax of this option, check the |
|
|
|
|
Specify the color of the unused area. For the syntax of this option, check the |
|
|
|
|
"Color" section in the ffmpeg-utils manual. The default value of @var{color} |
|
|
|
|
is "black". |
|
|
|
|
@end table |
|
|
|
@ -9919,7 +9919,7 @@ A '|'-separated list of parameters to pass to the frei0r source. |
|
|
|
|
@end table |
|
|
|
|
|
|
|
|
|
For example, to generate a frei0r partik0l source with size 200x200 |
|
|
|
|
and frame rate 10 which is overlayed on the overlay filter main input: |
|
|
|
|
and frame rate 10 which is overlaid on the overlay filter main input: |
|
|
|
|
@example |
|
|
|
|
frei0r_src=size=200x200:framerate=10:filter_name=partik0l:filter_params=1234 [overlay]; [in][overlay] overlay |
|
|
|
|
@end example |
|
|
|
@ -10910,7 +10910,7 @@ The previous output PTS. |
|
|
|
|
previous output time in seconds |
|
|
|
|
|
|
|
|
|
@item RTCTIME |
|
|
|
|
The wallclock (RTC) time in microseconds.. This is deprecated, use time(0) |
|
|
|
|
The wallclock (RTC) time in microseconds. This is deprecated, use time(0) |
|
|
|
|
instead. |
|
|
|
|
|
|
|
|
|
@item RTCSTART |
|
|
|
|