Video Converter: FAQ - Revision history

Admin: /* '''How do I use the Video Converter to downscale HD material to SD?''' */

2009-02-16T03:54:21Z

'''How do I use the Video Converter to downscale HD material to SD?'''

Admin at 04:14, 11 February 2009

2009-02-11T04:14:40Z

Admin at 04:10, 11 February 2009

2009-02-11T04:10:38Z

Admin at 04:10, 11 February 2009

2009-02-11T04:10:18Z

Admin at 04:10, 11 February 2009

2009-02-11T04:10:05Z

Admin at 11:26, 15 January 2009

2009-01-15T11:26:51Z

Admin at 09:40, 15 January 2009

2009-01-15T09:40:03Z

Admin at 09:39, 15 January 2009

2009-01-15T09:39:06Z

Admin at 09:30, 15 January 2009

2009-01-15T09:30:57Z

Admin at 06:51, 9 July 2008

2008-07-09T06:51:52Z

@@ Line 20: / Line 20: @@
 CONVERTER_PROPS2 cnvProps2;
 ::ZeroMemory( &cnvProps2, sizeof(cnvProps2) );
-cnvProps.eInterlaceIn = eVCI_Auto; // Or eVCI_Field1First, eVCI_Field2First, eVCI_Progressive for manual setting of interlace.
 cnvProps.nAspectIn = 0; // For use VideoInfoHeader2 flags or e.g. MAKELPARAM( 16, 9 ) for 16:9 AR.
 cnvProps.eInterlaceIn = eVCI_Auto; // Or eVCI_Field1First, eVCI_Field2First, eVCI_Progressive for manual setting of interlace.

@@ Line 34: / Line 34: @@
 int nMask = VC_ALL_MASK;
 cpVideConverter->SetConversionProps2( &cnvProps, &nMask );
 </source>
 [[Category:FAQs]]

@@ Line 9: / Line 9: @@
 Integer base algorithm.
-'''How to use programmatically only those resize methods that I need?'''
+==='''How to use programmatically only those resize methods that I need?'''===
 You can set them via via IVideoConverter2::SetConversionProps2().
-'''How do I use the Video Converter to downscale HD material to SD?'''
+==='''How do I use the Video Converter to downscale HD material to SD?'''===
 For this purpose you need to specify the CONVERTER_PROPS2 structure:

@@ Line 5: / Line 5: @@
 We use MMX, SSE and SSE2 extensions with auto detection of supported features.
-'''What is precision used?'''
+==='''What is precision used?'''===
 Integer base algorithm.

@@ Line 1: / Line 1: @@
 This is the FAQ page for the [[Video Converter]] DirectShow filter.
-'''What CPU extensions are used?'''
+==='''What CPU extensions are used?'''===
 We use MMX, SSE and SSE2 extensions with auto detection of supported features.

← Older revision		Revision as of 11:26, 15 January 2009
Line 8:		Line 8:

	Integer base algorithm.		Integer base algorithm.
−
−	~~'''What is the technique implemented in each resize method?'''~~
−
−	~~As follows:~~
−
−

	'''How to use programmatically only those resize methods that I need?'''		'''How to use programmatically only those resize methods that I need?'''

@@ Line 13: / Line 13: @@
 As follows:
-* '''eVCR_Nearest''' - neighbours neirborn. ''Not very fine quality but very fast.''
-* '''eVCR_Linear''' - linear interpolation (bilinear). ''Middle quality, but rather fast.''
-* '''eVCR_Cubic''' - cubic interpolation (bicubic). ''Fine quality.''
-* '''eVCR_Super''' - super sampling interpolation (bicubic in enlarge case). ''Fine quality.''
-* '''eVCR_Lanczos''' - lanczos interpolation. ''Fine quality.''
-* '''eVCR_CubicWithMP''' - cubic interpolation for horizontal and weight-based with gauss distribution for vertical. ''Fine quality, recommended for resizing of interlaced video.''
-* '''eVCR_MPLinear''' - weight-based algorithm with linear distribution. ''Fine quality but not very fast.''
-* '''eVCR_MPGauss''' - weight-based algorithm with gauss distribution. ''Fine quality but not very fast.''
-* '''eVCR_MPBlackman''' - weight-based algorithm with blackman distribution. ''Fine quality but not very fast.''
-* '''eVCR_MPHamming''' - weight-based algorithm with hamming distribution. ''Fine quality but not very fast.''
 '''How to use programmatically only those resize methods that I need?'''

@@ Line 13: / Line 13: @@
 As follows:
-<source lang="csharp">
+* '''eVCR_Nearest''' - neighbours neirborn (not very fine quality but very fast).
-eVCR_Nearest, // Neighbours neirborn.
+* '''eVCR_Linear''' - linear interpolation (bilinear).
-eVCR_Linear, // Linear interpolation (bilinear).
 eVCR_Cubic, // Cubic interpolation (bicubic).
 eVCR_Super, // Super sampling interpolation (bicubic in enlarge case).
@@ Line 25: / Line 25: @@
 eVCR_MPBlackman, // Weight-based algorithm with blackman distribution.
 eVCR_MPHamming // Weight-based algorithm with hamming distribution.
-</source>
 '''How to use programmatically only those resize methods that I need?'''

@@ Line 38: / Line 38: @@
 CONVERTER_PROPS2 cnvProps2;
 ::ZeroMemory( &cnvProps2, sizeof(cnvProps2) );
-cnvProps.eInterlaceIn = eVCI_Auto; // or eVCI_Field1First, eVCI_Field2First, eVCI_Progressive for manual set interlace
+cnvProps.eInterlaceIn = eVCI_Auto; // Or eVCI_Field1First, eVCI_Field2First, eVCI_Progressive for manual setting of interlace.
-cnvProps.nAspectIn = 0; // For use VideoInfoHeader2 flags or e.g. MAKELPARAM( 16, 9 ) for 16:9 AR
+cnvProps.nAspectIn = 0; // For use VideoInfoHeader2 flags or e.g. MAKELPARAM( 16, 9 ) for 16:9 AR.
-cnvProps.eInterlaceIn = eVCI_Auto; // or eVCI_Field1First, eVCI_Field2First, eVCI_Progressive for manual set interlace
+cnvProps.eInterlaceIn = eVCI_Auto; // Or eVCI_Field1First, eVCI_Field2First, eVCI_Progressive for manual setting of interlace.
 cnvProps.szOutput.cx = 720;
 cnvProps.szOutput.cy = 576;
 cnvProps.nAspectOut = MAKELPARAM( 4, 3 );
-cnvProps.eKeepAspect2 = eVCKA_LetterBox; // or eVCKA_Crop for crop or eVCKA_None for not maintain AR
+cnvProps.eKeepAspect2 = eVCKA_LetterBox; // Or eVCKA_Crop for crop or eVCKA_None for not maintain AR.
-cnvProps.eResize = eVCR_CubicWithMP; // See eVCResize for other interplation algorithms
+cnvProps.eResize = eVCR_CubicWithMP; // See eVCResize for other interplation algorithms.
-cnvProps.eFieldProcess = eVCFP_Auto; // See eVCFieldProcess for other options
+cnvProps.eFieldProcess = eVCFP_Auto; // See eVCFieldProcess for other options.
-cnvProps.optimization = eThreadPerProc; // Or eOneThread - for work in 'sync' mode
+cnvProps.optimization = eThreadPerProc; // Or eOneThread - for work in 'sync' mode.
-cnvProps.dwUseCPUMask = -1; // Use all available cores/CPUs
+cnvProps.dwUseCPUMask = -1; // Use all available cores/CPUs.
 int nMask = VC_ALL_MASK;