merged all the latest changes from 2.4 to trunk
This commit is contained in:
86
3rdparty/include/ffmpeg_/libswscale/swscale.h
vendored
86
3rdparty/include/ffmpeg_/libswscale/swscale.h
vendored
@@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
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* Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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@@ -28,10 +28,12 @@
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*/
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#include "libavutil/avutil.h"
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#include "libavutil/log.h"
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#include "libavutil/pixfmt.h"
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#define LIBSWSCALE_VERSION_MAJOR 2
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#define LIBSWSCALE_VERSION_MINOR 0
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#define LIBSWSCALE_VERSION_MICRO 0
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#define LIBSWSCALE_VERSION_MINOR 1
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#define LIBSWSCALE_VERSION_MICRO 100
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#define LIBSWSCALE_VERSION_INT AV_VERSION_INT(LIBSWSCALE_VERSION_MAJOR, \
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LIBSWSCALE_VERSION_MINOR, \
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@@ -58,17 +60,17 @@
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#endif
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/**
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* Returns the LIBSWSCALE_VERSION_INT constant.
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* Return the LIBSWSCALE_VERSION_INT constant.
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*/
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unsigned swscale_version(void);
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/**
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* Returns the libswscale build-time configuration.
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* Return the libswscale build-time configuration.
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*/
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const char *swscale_configuration(void);
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/**
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* Returns the libswscale license.
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* Return the libswscale license.
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*/
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const char *swscale_license(void);
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@@ -125,7 +127,7 @@ const char *swscale_license(void);
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#define SWS_CS_DEFAULT 5
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/**
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* Returns a pointer to yuv<->rgb coefficients for the given colorspace
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* Return a pointer to yuv<->rgb coefficients for the given colorspace
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* suitable for sws_setColorspaceDetails().
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*
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* @param colorspace One of the SWS_CS_* macros. If invalid,
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@@ -133,7 +135,6 @@ const char *swscale_license(void);
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*/
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const int *sws_getCoefficients(int colorspace);
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// when used for filters they must have an odd number of elements
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// coeffs cannot be shared between vectors
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typedef struct {
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@@ -152,26 +153,26 @@ typedef struct {
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struct SwsContext;
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/**
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* Returns a positive value if pix_fmt is a supported input format, 0
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* Return a positive value if pix_fmt is a supported input format, 0
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* otherwise.
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*/
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int sws_isSupportedInput(enum PixelFormat pix_fmt);
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/**
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* Returns a positive value if pix_fmt is a supported output format, 0
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* Return a positive value if pix_fmt is a supported output format, 0
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* otherwise.
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*/
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int sws_isSupportedOutput(enum PixelFormat pix_fmt);
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/**
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* Allocates an empty SwsContext. This must be filled and passed to
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* Allocate an empty SwsContext. This must be filled and passed to
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* sws_init_context(). For filling see AVOptions, options.c and
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* sws_setColorspaceDetails().
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*/
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struct SwsContext *sws_alloc_context(void);
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/**
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* Initializes the swscaler context sws_context.
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* Initialize the swscaler context sws_context.
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*
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* @return zero or positive value on success, a negative value on
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* error
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@@ -179,14 +180,14 @@ struct SwsContext *sws_alloc_context(void);
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int sws_init_context(struct SwsContext *sws_context, SwsFilter *srcFilter, SwsFilter *dstFilter);
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/**
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* Frees the swscaler context swsContext.
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* Free the swscaler context swsContext.
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* If swsContext is NULL, then does nothing.
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*/
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void sws_freeContext(struct SwsContext *swsContext);
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#if FF_API_SWS_GETCONTEXT
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/**
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* Allocates and returns a SwsContext. You need it to perform
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* Allocate and return an SwsContext. You need it to perform
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* scaling/conversion operations using sws_scale().
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*
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* @param srcW the width of the source image
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@@ -208,7 +209,7 @@ struct SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat
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#endif
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/**
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* Scales the image slice in srcSlice and puts the resulting scaled
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* Scale the image slice in srcSlice and put the resulting scaled
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* slice in the image in dst. A slice is a sequence of consecutive
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* rows in an image.
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*
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@@ -216,7 +217,7 @@ struct SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat
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* top-bottom or bottom-top order. If slices are provided in
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* non-sequential order the behavior of the function is undefined.
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*
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* @param context the scaling context previously created with
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* @param c the scaling context previously created with
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* sws_getContext()
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* @param srcSlice the array containing the pointers to the planes of
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* the source slice
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@@ -233,17 +234,9 @@ struct SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat
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* the destination image
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* @return the height of the output slice
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*/
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int sws_scale(struct SwsContext *context, const uint8_t* const srcSlice[], const int srcStride[],
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int srcSliceY, int srcSliceH, uint8_t* const dst[], const int dstStride[]);
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#if LIBSWSCALE_VERSION_MAJOR < 1
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/**
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* @deprecated Use sws_scale() instead.
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*/
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int sws_scale_ordered(struct SwsContext *context, const uint8_t* const src[],
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int srcStride[], int srcSliceY, int srcSliceH,
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uint8_t* dst[], int dstStride[]) attribute_deprecated;
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#endif
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int sws_scale(struct SwsContext *c, const uint8_t *const srcSlice[],
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const int srcStride[], int srcSliceY, int srcSliceH,
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uint8_t *const dst[], const int dstStride[]);
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/**
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* @param inv_table the yuv2rgb coefficients, normally ff_yuv2rgb_coeffs[x]
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@@ -261,35 +254,35 @@ int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table,
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int *brightness, int *contrast, int *saturation);
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/**
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* Allocates and returns an uninitialized vector with length coefficients.
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* Allocate and return an uninitialized vector with length coefficients.
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*/
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SwsVector *sws_allocVec(int length);
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/**
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* Returns a normalized Gaussian curve used to filter stuff
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* quality=3 is high quality, lower is lower quality.
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* Return a normalized Gaussian curve used to filter stuff
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* quality = 3 is high quality, lower is lower quality.
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*/
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SwsVector *sws_getGaussianVec(double variance, double quality);
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/**
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* Allocates and returns a vector with length coefficients, all
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* Allocate and return a vector with length coefficients, all
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* with the same value c.
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*/
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SwsVector *sws_getConstVec(double c, int length);
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/**
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* Allocates and returns a vector with just one coefficient, with
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* Allocate and return a vector with just one coefficient, with
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* value 1.0.
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*/
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SwsVector *sws_getIdentityVec(void);
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/**
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* Scales all the coefficients of a by the scalar value.
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* Scale all the coefficients of a by the scalar value.
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*/
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void sws_scaleVec(SwsVector *a, double scalar);
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/**
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* Scales all the coefficients of a so that their sum equals height.
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* Scale all the coefficients of a so that their sum equals height.
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*/
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void sws_normalizeVec(SwsVector *a, double height);
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void sws_convVec(SwsVector *a, SwsVector *b);
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@@ -298,20 +291,13 @@ void sws_subVec(SwsVector *a, SwsVector *b);
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void sws_shiftVec(SwsVector *a, int shift);
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/**
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* Allocates and returns a clone of the vector a, that is a vector
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* Allocate and return a clone of the vector a, that is a vector
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* with the same coefficients as a.
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*/
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SwsVector *sws_cloneVec(SwsVector *a);
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#if LIBSWSCALE_VERSION_MAJOR < 1
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/**
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* @deprecated Use sws_printVec2() instead.
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*/
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attribute_deprecated void sws_printVec(SwsVector *a);
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#endif
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/**
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* Prints with av_log() a textual representation of the vector a
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* Print with av_log() a textual representation of the vector a
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* if log_level <= av_log_level.
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*/
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void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level);
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@@ -325,8 +311,7 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
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void sws_freeFilter(SwsFilter *filter);
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/**
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* Checks if context can be reused, otherwise reallocates a new
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* one.
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* Check if context can be reused, otherwise reallocate a new one.
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*
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* If context is NULL, just calls sws_getContext() to get a new
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* context. Otherwise, checks if the parameters are the ones already
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@@ -344,7 +329,7 @@ struct SwsContext *sws_getCachedContext(struct SwsContext *context,
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SwsFilter *dstFilter, const double *param);
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/**
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* Converts an 8bit paletted frame into a frame with a color depth of 32-bits.
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* Convert an 8-bit paletted frame into a frame with a color depth of 32 bits.
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*
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* The output frame will have the same packed format as the palette.
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*
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@@ -356,7 +341,7 @@ struct SwsContext *sws_getCachedContext(struct SwsContext *context,
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void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette);
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/**
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* Converts an 8bit paletted frame into a frame with a color depth of 24 bits.
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* Convert an 8-bit paletted frame into a frame with a color depth of 24 bits.
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*
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* With the palette format "ABCD", the destination frame ends up with the format "ABC".
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*
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@@ -367,5 +352,12 @@ void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pix
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*/
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void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette);
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/**
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* Get the AVClass for swsContext. It can be used in combination with
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* AV_OPT_SEARCH_FAKE_OBJ for examining options.
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*
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* @see av_opt_find().
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*/
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const AVClass *sws_get_class(void);
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#endif /* SWSCALE_SWSCALE_H */
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