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Diffstat (limited to 'src/lib/ffmpeg/swscale.pas')
| -rw-r--r-- | src/lib/ffmpeg/swscale.pas | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/lib/ffmpeg/swscale.pas b/src/lib/ffmpeg/swscale.pas new file mode 100644 index 00000000..cac14d57 --- /dev/null +++ b/src/lib/ffmpeg/swscale.pas @@ -0,0 +1,202 @@ +(* + * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + *) + +(* + * FFmpeg Pascal port + * - Ported by the UltraStar Deluxe Team + *) + +(* + * Conversion of libswscale/swscale.h + * revision 26183, Thu Mar 6 11:32:25 2008 UTC + *) + +unit swscale; + +{$IFDEF FPC} + {$MODE DELPHI } + {$PACKENUM 4} (* use 4-byte enums *) + {$PACKRECORDS C} (* C/C++-compatible record packing *) +{$ELSE} + {$MINENUMSIZE 4} (* use 4-byte enums *) +{$ENDIF} + +{$IFDEF DARWIN} + {$linklib libswscale} +{$ENDIF} + +interface + +uses + ctypes, + avutil, + UConfig; + +const + (* Max. supported version by this header *) + LIBSWSCALE_MAX_VERSION_MAJOR = 0; + LIBSWSCALE_MAX_VERSION_MINOR = 5; + LIBSWSCALE_MAX_VERSION_RELEASE = 1; + LIBSWSCALE_MAX_VERSION = (LIBSWSCALE_MAX_VERSION_MAJOR * VERSION_MAJOR) + + (LIBSWSCALE_MAX_VERSION_MINOR * VERSION_MINOR) + + (LIBSWSCALE_MAX_VERSION_RELEASE * VERSION_RELEASE); + +(* Check if linked versions are supported *) +{$IF (LIBSWSCALE_VERSION > LIBSWSCALE_MAX_VERSION)} + {$MESSAGE Warn 'Linked version of libswscale may be unsupported!'} +{$IFEND} + +type + TQuadCintArray = array[0..3] of cint; + PQuadCintArray = ^TQuadCintArray; + TCintArray = array[0..0] of cint; + PCintArray = ^TCintArray; + TPCuint8Array = array[0..0] of PCuint8; + PPCuint8Array = ^TPCuint8Array; + +const + {* values for the flags, the stuff on the command line is different *} + SWS_FAST_BILINEAR = 1; + SWS_BILINEAR = 2; + SWS_BICUBIC = 4; + SWS_X = 8; + SWS_POINT = $10; + SWS_AREA = $20; + SWS_BICUBLIN = $40; + SWS_GAUSS = $80; + SWS_SINC = $100; + SWS_LANCZOS = $200; + SWS_SPLINE = $400; + + SWS_SRC_V_CHR_DROP_MASK = $30000; + SWS_SRC_V_CHR_DROP_SHIFT = 16; + + SWS_PARAM_DEFAULT = 123456; + + SWS_PRINT_INFO = $1000; + + //the following 3 flags are not completely implemented + //internal chrominace subsampling info + SWS_FULL_CHR_H_INT = $2000; + //input subsampling info + SWS_FULL_CHR_H_INP = $4000; + SWS_DIRECT_BGR = $8000; + SWS_ACCURATE_RND = $40000; + + SWS_CPU_CAPS_MMX = $80000000; + SWS_CPU_CAPS_MMX2 = $20000000; + SWS_CPU_CAPS_3DNOW = $40000000; + SWS_CPU_CAPS_ALTIVEC = $10000000; + SWS_CPU_CAPS_BFIN = $01000000; + + SWS_MAX_REDUCE_CUTOFF = 0.002; + + SWS_CS_ITU709 = 1; + SWS_CS_FCC = 4; + SWS_CS_ITU601 = 5; + SWS_CS_ITU624 = 5; + SWS_CS_SMPTE170M = 5; + SWS_CS_SMPTE240M = 7; + SWS_CS_DEFAULT = 5; + + +type + + // when used for filters they must have an odd number of elements + // coeffs cannot be shared between vectors + PSwsVector = ^TSwsVector; + TSwsVector = record + coeff: PCdouble; + length: cint; + end; + + // vectors can be shared + PSwsFilter = ^TSwsFilter; + TSwsFilter = record + lumH: PSwsVector; + lumV: PSwsVector; + chrH: PSwsVector; + chrV: PSwsVector; + end; + + PSwsContext = ^TSwsContext; + TSwsContext = record + {internal structure} + end; + + +procedure sws_freeContext(swsContext: PSwsContext); + cdecl; external sw__scale; + +function sws_getContext(srcW: cint; srcH: cint; srcFormat: cint; dstW: cint; dstH: cint; dstFormat: cint; flags: cint; + srcFilter: PSwsFilter; dstFilter: PSwsFilter; param: PCdouble): PSwsContext; + cdecl; external sw__scale; +function sws_scale(context: PSwsContext; src: PPCuint8Array; srcStride: PCintArray; srcSliceY: cint; srcSliceH: cint; + dst: PPCuint8Array; dstStride: PCintArray): cint; + cdecl; external sw__scale; +function sws_scale_ordered(context: PSwsContext; src: PPCuint8Array; srcStride: PCintArray; srcSliceY: cint; + srcSliceH: cint; dst: PPCuint8Array; dstStride: PCintArray): cint; + cdecl; external sw__scale; deprecated; + +function sws_setColorspaceDetails(c: PSwsContext; inv_table: PQuadCintArray; srcRange: cint; table: PQuadCintArray; dstRange: cint; + brightness: cint; contrast: cint; saturation: cint): cint; + cdecl; external sw__scale; +function sws_getColorspaceDetails(c: PSwsContext; var inv_table: PQuadCintArray; var srcRange: cint; var table: PQuadCintArray; var dstRange: cint; + var brightness: cint; var contrast: cint; var saturation: cint): cint; + cdecl; external sw__scale; +function sws_getGaussianVec(variance: cdouble; quality: cdouble): PSwsVector; + cdecl; external sw__scale; +function sws_getConstVec(c: cdouble; length: cint): PSwsVector; + cdecl; external sw__scale; +function sws_getIdentityVec: PSwsVector; + cdecl; external sw__scale; +procedure sws_scaleVec(a: PSwsVector; scalar: cdouble); + cdecl; external sw__scale; +procedure sws_normalizeVec(a: PSwsVector; height: cdouble); + cdecl; external sw__scale; +procedure sws_convVec(a: PSwsVector; b: PSwsVector); + cdecl; external sw__scale; +procedure sws_addVec(a: PSwsVector; b: PSwsVector); + cdecl; external sw__scale; +procedure sws_subVec(a: PSwsVector; b: PSwsVector); + cdecl; external sw__scale; +procedure sws_shiftVec(a: PSwsVector; shift: cint); + cdecl; external sw__scale; +function sws_cloneVec(a: PSwsVector): PSwsVector; + cdecl; external sw__scale; + +procedure sws_printVec(a: PSwsVector); + cdecl; external sw__scale; +procedure sws_freeVec(a: PSwsVector); + cdecl; external sw__scale; + +function sws_getDefaultFilter(lumaGBlur: cfloat; chromaGBlur: cfloat; lumaSarpen: cfloat; chromaSharpen: cfloat; chromaHShift: cfloat; + chromaVShift: cfloat; verbose: cint): PSwsFilter; + cdecl; external sw__scale; +procedure sws_freeFilter(filter: PSwsFilter); + cdecl; external sw__scale; + +function sws_getCachedContext(context: PSwsContext; + srcW: cint; srcH: cint; srcFormat: cint; + dstW: cint; dstH: cint; dstFormat: cint; flags: cint; + srcFilter: PSwsFilter; dstFilter: PSwsFilter; param: PCdouble): PSwsContext; + cdecl; external sw__scale; + +implementation + +end. |