diff options
Diffstat (limited to 'unicode/src/lib/ffmpeg/swscale.pas')
| -rw-r--r-- | unicode/src/lib/ffmpeg/swscale.pas | 160 |
1 files changed, 22 insertions, 138 deletions
diff --git a/unicode/src/lib/ffmpeg/swscale.pas b/unicode/src/lib/ffmpeg/swscale.pas index c0aabf45..965659d9 100644 --- a/unicode/src/lib/ffmpeg/swscale.pas +++ b/unicode/src/lib/ffmpeg/swscale.pas @@ -45,13 +45,12 @@ interface uses ctypes, avutil, - avcodec, UConfig; const (* Max. supported version by this header *) LIBSWSCALE_MAX_VERSION_MAJOR = 0; - LIBSWSCALE_MAX_VERSION_MINOR = 7; + LIBSWSCALE_MAX_VERSION_MINOR = 6; LIBSWSCALE_MAX_VERSION_RELEASE = 1; LIBSWSCALE_MAX_VERSION = (LIBSWSCALE_MAX_VERSION_MAJOR * VERSION_MAJOR) + (LIBSWSCALE_MAX_VERSION_MINOR * VERSION_MINOR) + @@ -79,7 +78,7 @@ function swscale_version(): cuint; {$IFEND} const - (* values for the flags, the stuff on the command line is different *) + {* values for the flags, the stuff on the command line is different *} SWS_FAST_BILINEAR = 1; SWS_BILINEAR = 2; SWS_BICUBIC = 4; @@ -99,10 +98,10 @@ const SWS_PRINT_INFO = $1000; - // the following 3 flags are not completely implemented - // internal chrominace subsampling info + //the following 3 flags are not completely implemented + //internal chrominace subsampling info SWS_FULL_CHR_H_INT = $2000; - // input subsampling info + //input subsampling info SWS_FULL_CHR_H_INP = $4000; SWS_DIRECT_BGR = $8000; SWS_ACCURATE_RND = $40000; @@ -124,14 +123,15 @@ const 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; // pointer to the list of coefficients - length: cint; // number of coefficients in the vector + coeff: PCdouble; + length: cint; end; // vectors can be shared @@ -148,179 +148,63 @@ type {internal structure} end; + procedure sws_freeContext(swsContext: PSwsContext); cdecl; external sw__scale; -(** - * Allocates and returns a SwsContext. You need it to perform - * scaling/conversion operations using sws_scale(). - * - * @param srcW the width of the source image - * @param srcH the height of the source image - * @param srcFormat the source image format - * @param dstW the width of the destination image - * @param dstH the height of the destination image - * @param dstFormat the destination image format - * @param flags specify which algorithm and options to use for rescaling - * @return a pointer to an allocated context, or NULL in case of error - *) function sws_getContext(srcW: cint; srcH: cint; srcFormat: TAVPixelFormat; - dstW: cint; dstH: cint; dstFormat: TAVPixelFormat; - flags: cint; srcFilter: PSwsFilter; - dstFilter: PSwsFilter; param: PCdouble): PSwsContext; + dstW: cint; dstH: cint; dstFormat: TAVPixelFormat; flags: cint; + srcFilter: PSwsFilter; dstFilter: PSwsFilter; param: PCdouble): PSwsContext; cdecl; external sw__scale; - -(** - * Scales the image slice in srcSlice and puts the resulting scaled - * slice in the image in dst. A slice is a sequence of consecutive - * rows in an image. - * - * @param context the scaling context previously created with - * sws_getContext() - * @param srcSlice the array containing the pointers to the planes of - * the source slice - * @param srcStride the array containing the strides for each plane of - * the source image - * @param srcSliceY the position in the source image of the slice to - * process, that is the number (counted starting from - * zero) in the image of the first row of the slice - * @param srcSliceH the height of the source slice, that is the number - * of rows in the slice - * @param dst the array containing the pointers to the planes of - * the destination image - * @param dstStride the array containing the strides for each plane of - * the destination image - * @return the height of the output slice - *) -function sws_scale(context: PSwsContext; srcSlice: PPCuint8Array; srcStride: PCintArray; - srcSliceY: cint; srcSliceH: cint; dst: PPCuint8Array; dstStride: PCintArray): cint; +function sws_scale(context: PSwsContext; src: PPCuint8Array; srcStride: PCintArray; srcSliceY: cint; srcSliceH: cint; + dst: PPCuint8Array; dstStride: PCintArray): cint; cdecl; external sw__scale; - -{$IF LIBSWSCALE_VERSION_MAJOR < 1} -// deprecated. Use sws_scale() instead. -function sws_scale_ordered(context: PSwsContext; src: PPCuint8Array; srcStride: PCintArray; - srcSliceY: cint; srcSliceH: cint; dst: PPCuint8Array; dstStride: PCintArray): cint; +function sws_scale_ordered(context: PSwsContext; src: PPCuint8Array; srcStride: PCintArray; srcSliceY: cint; + srcSliceH: cint; dst: PPCuint8Array; dstStride: PCintArray): cint; cdecl; external sw__scale; deprecated; -{$IFEND} -(** - * @param inv_table the yuv2rgb coefficients, normally ff_yuv2rgb_coeffs[x] - * @param fullRange if 1 then the luma range is 0..255 if 0 it is 16..235 - * @return -1 if not supported - *) -function sws_setColorspaceDetails(c: PSwsContext; inv_table: PQuadCintArray; - srcRange: cint; table: PQuadCintArray; dstRange: cint; +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; - -(** - * @return -1 if not supported - *) -function sws_getColorspaceDetails(c: PSwsContext; var inv_table: PQuadCintArray; - var srcRange: cint; var table: PQuadCintArray; var dstRange: cint; +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; - -(** - * Returns a normalized Gaussian curve used to filter stuff - * quality=3 is high quality, lower is lower quality. - *) function sws_getGaussianVec(variance: cdouble; quality: cdouble): PSwsVector; cdecl; external sw__scale; - -(** - * Allocates and returns a vector with length coefficients, all - * with the same value c. - *) function sws_getConstVec(c: cdouble; length: cint): PSwsVector; cdecl; external sw__scale; - -(** - * Allocates and returns a vector with just one coefficient, with - * value 1.0. - *) function sws_getIdentityVec: PSwsVector; cdecl; external sw__scale; - -(** - * Scales all the coefficients of a by the scalar value. - *) procedure sws_scaleVec(a: PSwsVector; scalar: cdouble); cdecl; external sw__scale; - -(** - * Scales all the coefficients of a so that their sum equals height. - *) 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; - -(** - * Allocates and returns a clone of the vector a, that is a vector - * with the same coefficients as a. - *) function sws_cloneVec(a: PSwsVector): PSwsVector; cdecl; external sw__scale; -{$IF LIBSWSCALE_VERSION_MAJOR < 1} -// deprecated Use sws_printVec2() instead. - procedure sws_printVec(a: PSwsVector); - cdecl; external sw__scale; deprecated; -{$IFEND} - -{$IF LIBSWSCALE_VERSION >= 000007000} // >= 0.7.0 -(** - * Prints with av_log() a textual representation of the vector a - * if log_level <= av_log_level. - *) -procedure sws_printVec2(a: PSwsVector; - log_ctx: PAVClass; // PAVClass is declared in avcodec.pas - log_level: cint); cdecl; external sw__scale; -{$IFEND} - procedure sws_freeVec(a: PSwsVector); cdecl; external sw__scale; -function sws_getDefaultFilter(lumaGBlur: cfloat; chromaGBlur: cfloat; - lumaSharpen: cfloat; chromaSharpen: cfloat; - chromaHShift: cfloat; chromaVShift: cfloat; - verbose: cint): PSwsFilter; +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; -(** - * Checks if context can be reused, otherwise reallocates a new - * one. - * - * If context is NULL, just calls sws_getContext() to get a new - * context. Otherwise, checks if the parameters are the ones already - * saved in context. If that is the case, returns the current - * context. Otherwise, frees context and gets a new context with - * the new parameters. - * - * Be warned that srcFilter and dstFilter are not checked, they - * are assumed to remain the same. - *) function sws_getCachedContext(context: PSwsContext; - srcW: cint; srcH: cint; srcFormat: TAVPixelFormat; - dstW: cint; dstH: cint; dstFormat: TAVPixelFormat; - flags: cint; srcFilter: PSwsFilter; - dstFilter: PSwsFilter; param: PCdouble): 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 |