diff options
Diffstat (limited to 'libswscale/swscale.h')
| -rw-r--r-- | libswscale/swscale.h | 67 |
1 files changed, 32 insertions, 35 deletions
diff --git a/libswscale/swscale.h b/libswscale/swscale.h index 68ca100542..efcbef35b2 100644 --- a/libswscale/swscale.h +++ b/libswscale/swscale.h @@ -1,20 +1,20 @@ /* - * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> + * Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -24,8 +24,7 @@ /** * @file * @ingroup libsws - * @brief - * external api for the swscale stuff + * external API header */ #include <stdint.h> @@ -81,6 +80,7 @@ const char *swscale_license(void); #define SWS_DIRECT_BGR 0x8000 #define SWS_ACCURATE_RND 0x40000 #define SWS_BITEXACT 0x80000 +#define SWS_ERROR_DIFFUSION 0x800000 #define SWS_MAX_REDUCE_CUTOFF 0.002 @@ -91,6 +91,7 @@ const char *swscale_license(void); #define SWS_CS_SMPTE170M 5 #define SWS_CS_SMPTE240M 7 #define SWS_CS_DEFAULT 5 +#define SWS_CS_BT2020 9 /** * Return a pointer to yuv<->rgb coefficients for the given colorspace @@ -150,6 +151,7 @@ struct SwsContext *sws_alloc_context(void); * @return zero or positive value on success, a negative value on * error */ +av_warn_unused_result int sws_init_context(struct SwsContext *sws_context, SwsFilter *srcFilter, SwsFilter *dstFilter); /** @@ -169,6 +171,12 @@ void sws_freeContext(struct SwsContext *swsContext); * @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 + * @param param extra parameters to tune the used scaler + * For SWS_BICUBIC param[0] and [1] tune the shape of the basis + * function, param[0] tunes f(1) and param[1] f´(1) + * For SWS_GAUSS param[0] tunes the exponent and thus cutoff + * frequency + * For SWS_LANCZOS param[0] tunes the width of the window function * @return a pointer to an allocated context, or NULL in case of error * @note this function is to be removed after a saner alternative is * written @@ -209,7 +217,13 @@ int sws_scale(struct SwsContext *c, const uint8_t *const srcSlice[], uint8_t *const dst[], const int dstStride[]); /** - * @param inv_table the yuv2rgb coefficients, normally ff_yuv2rgb_coeffs[x] + * @param dstRange flag indicating the while-black range of the output (1=jpeg / 0=mpeg) + * @param srcRange flag indicating the while-black range of the input (1=jpeg / 0=mpeg) + * @param table the yuv2rgb coefficients describing the output yuv space, normally ff_yuv2rgb_coeffs[x] + * @param inv_table the yuv2rgb coefficients describing the input yuv space, normally ff_yuv2rgb_coeffs[x] + * @param brightness 16.16 fixed point brightness correction + * @param contrast 16.16 fixed point contrast correction + * @param saturation 16.16 fixed point saturation correction * @return -1 if not supported */ int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4], @@ -235,18 +249,6 @@ SwsVector *sws_allocVec(int length); SwsVector *sws_getGaussianVec(double variance, double quality); /** - * Allocate and return a vector with length coefficients, all - * with the same value c. - */ -SwsVector *sws_getConstVec(double c, int length); - -/** - * Allocate and return a vector with just one coefficient, with - * value 1.0. - */ -SwsVector *sws_getIdentityVec(void); - -/** * Scale all the coefficients of a by the scalar value. */ void sws_scaleVec(SwsVector *a, double scalar); @@ -255,22 +257,17 @@ void sws_scaleVec(SwsVector *a, double scalar); * Scale all the coefficients of a so that their sum equals height. */ void sws_normalizeVec(SwsVector *a, double height); -void sws_convVec(SwsVector *a, SwsVector *b); -void sws_addVec(SwsVector *a, SwsVector *b); -void sws_subVec(SwsVector *a, SwsVector *b); -void sws_shiftVec(SwsVector *a, int shift); -/** - * Allocate and return a clone of the vector a, that is a vector - * with the same coefficients as a. - */ -SwsVector *sws_cloneVec(SwsVector *a); - -/** - * Print with av_log() a textual representation of the vector a - * if log_level <= av_log_level. - */ -void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level); +#if FF_API_SWS_VECTOR +attribute_deprecated SwsVector *sws_getConstVec(double c, int length); +attribute_deprecated SwsVector *sws_getIdentityVec(void); +attribute_deprecated void sws_convVec(SwsVector *a, SwsVector *b); +attribute_deprecated void sws_addVec(SwsVector *a, SwsVector *b); +attribute_deprecated void sws_subVec(SwsVector *a, SwsVector *b); +attribute_deprecated void sws_shiftVec(SwsVector *a, int shift); +attribute_deprecated SwsVector *sws_cloneVec(SwsVector *a); +attribute_deprecated void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level); +#endif void sws_freeVec(SwsVector *a); |