Filter SDK/SimpleSample - Revision history

Jmac698 at 12:25, 11 June 2016

2016-06-11T12:25:50Z

2015-08-25T20:53:53Z

typo

2015-08-24T20:43:37Z

2015-08-24T20:42:30Z

2014-10-06T20:36:25Z

2014-09-19T04:38:39Z

Filter_SDK -> FilterSDK

2014-09-19T03:53:40Z

2013-09-21T15:36:06Z

2013-09-21T15:17:26Z

2013-09-15T20:09:57Z

← Older revision		Revision as of 12:25, 11 June 2016
Line 1:		Line 1:
		+	Note: An updated version of this example with source code, documentation, and Avisynth test scripts in available at http://forum.doom9.org/showthread.php?p=1656962#post1656962
		+
	I have rewritten SimpleSample for AviSynth 2.6. I changed it into an in place filter (so the source is overwritten). It draws a white square in the center of the clip and it supports all colorformats.		I have rewritten SimpleSample for AviSynth 2.6. I changed it into an in place filter (so the source is overwritten). It draws a white square in the center of the clip and it supports all colorformats.

@@ Line 375: / Line 375: @@
+  }
-The [[Filter_SDK/Cplusplus_API#AddFunction|AddFunction]] has the following paramters:
+The [[Filter_SDK/Cplusplus_API#AddFunction|AddFunction]] has the following parameters:
   AddFunction(Filtername, Arguments, Function to call, 0);

@@ Line 388: / Line 388: @@
    b - boolean
    . - Any type (dot)
-  # Array Specifiers (have a look at StackVertical and SelectEvery for example A how to access such arrays)
+  # Array Specifiers (have a look at StackVertical and SelectEvery for example as to how access such arrays)
    i* - Integer Array, zero or more
    i+ - Integer Array, one or more

@@ Line 381: / Line 381: @@
 ''Arguments'' is a string that defines the types and optional names of the arguments for your filter. The possible types are:
-  c - clip
+  # Argument type specifier strings
- i - integer
+  c - clip
- f - float
+  i - integer
- s - string
+  f - float
- b - boolean
+  s - string
 The text inside the [ ] lets you used named parameters in your script. Thus

@@ Line 311: / Line 311: @@
            height_sub = vi.GetPlaneHeightSubsampling(planes[p]);
-Since the planes have unequal width (measured in bytes; same for height) we will need their subsampling. The functions [[Cplusplus_API/VideoInfo|GetPlaneWidthSubsampling]] and [[Cplusplus_API/VideoInfo|GetPlaneHeightSubsampling]] are new in the 2.6 api. They return the horizontal and vertical subsampling of the plane compared to the luma plane. The subsampling of the formats is:
+Since the planes have unequal width (measured in bytes; same for height) we will need their subsampling. The functions [[Filter_SDK/Cplusplus_API/VideoInfo|GetPlaneWidthSubsampling]] and [[Filter_SDK/Cplusplus_API/VideoInfo|GetPlaneHeightSubsampling]] are new in the 2.6 api. They return the horizontal and vertical subsampling of the plane compared to the luma plane. The subsampling of the formats is:
 {| border="1"
@@ Line 375: / Line 375: @@
+  }
-The [[Cplusplus_API#AddFunction|AddFunction]] has the following paramters:
+The [[Filter_SDK/Cplusplus_API#AddFunction|AddFunction]] has the following paramters:
   AddFunction(Filtername, Arguments, Function to call, 0);

← Older revision		Revision as of 04:38, 19 September 2014
Line 403:		Line 403:
	[[Filter_SDK/Simple_sample\|Simple sample]] <need to move the old examples>		[[Filter_SDK/Simple_sample\|Simple sample]] <need to move the old examples>

−	[[Category:~~Filter_SDK~~]]	+	[[Category:FilterSDK]]

← Older revision		Revision as of 03:53, 19 September 2014
Line 402:		Line 402:

	[[Filter_SDK/Simple_sample\|Simple sample]] <need to move the old examples>		[[Filter_SDK/Simple_sample\|Simple sample]] <need to move the old examples>
		+
		+	[[Category:Filter_SDK]]

@@ Line 146: / Line 146: @@
   extern "C" __declspec(dllexport) const char* __stdcall AvisynthPluginInit3(IScriptEnvironment* env, const AVS_Linkage* const vectors) {
      AVS_linkage = vectors;
-     env->AddFunction("SimpleSample", "c[SIZE]i", Create_SimpleSample, 0);
+     env->AddFunction("SimpleSample", "c[size]i", Create_SimpleSample, 0);
      return "SimpleSample plugin";
+  }

@@ Line 9: / Line 9: @@
      int SquareSize;
   public:
-     SimpleSample(PClip _child,	int _SquareSize, IScriptEnvironment* env);
+     SimpleSample(PClip _child, int _SquareSize, IScriptEnvironment* env);
      ~SimpleSample();
      PVideoFrame __stdcall GetFrame(int n, IScriptEnvironment* env);

@@ Line 340: / Line 340: @@
 |}
-Note GetPlaneWidthSubsampling(PLANAR_Y) = GetPlaneHeightSubsampling(PLANAR_Y). The chroma planes PLANAR_U and PLANAR_V have the same subsampling.
+The chroma planes PLANAR_U and PLANAR_V have the same subsampling. Also GetPlaneWidthSubsampling(PLANAR_Y) = GetPlaneHeightSubsampling(PLANAR_Y) = 0 since PLANAR_Y is not subsampled.
            srcp = srcp + (src_height/2 - (SquareSize>>height_sub)/2) * src_pitch;