X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libswscale%2Futils.c;h=b644ed9610fa798429e8f185d82d17a47bb1391d;hb=b4dc68803bd7fa73c2e37f55ae73b5fdb293c68d;hp=35e11269e7d1dc9584bab4d57abfdeb4faf91023;hpb=53bc0dc2bdc1566156331ebe1c1d7bf0e0879c1f;p=ffmpeg diff --git a/libswscale/utils.c b/libswscale/utils.c index 35e11269e7d..b644ed9610f 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -1,25 +1,24 @@ /* * Copyright (C) 2001-2003 Michael Niedermayer * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav 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, + * Libav 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 + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _SVID_SOURCE //needed for MAP_ANONYMOUS -#define _DARWIN_C_SOURCE // needed for MAP_ANON #include #include #include @@ -41,8 +40,11 @@ #include "rgb2rgb.h" #include "libavutil/intreadwrite.h" #include "libavutil/x86_cpu.h" +#include "libavutil/cpu.h" #include "libavutil/avutil.h" #include "libavutil/bswap.h" +#include "libavutil/mathematics.h" +#include "libavutil/opt.h" #include "libavutil/pixdesc.h" unsigned swscale_version(void) @@ -52,100 +54,110 @@ unsigned swscale_version(void) const char *swscale_configuration(void) { - return FFMPEG_CONFIGURATION; + return LIBAV_CONFIGURATION; } const char *swscale_license(void) { #define LICENSE_PREFIX "libswscale license: " - return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1; + return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1; } #define RET 0xC3 //near return opcode for x86 -#define isSupportedIn(x) ( \ - (x)==PIX_FMT_YUV420P \ - || (x)==PIX_FMT_YUVA420P \ - || (x)==PIX_FMT_YUYV422 \ - || (x)==PIX_FMT_UYVY422 \ - || (x)==PIX_FMT_RGB48BE \ - || (x)==PIX_FMT_RGB48LE \ - || (x)==PIX_FMT_RGB32 \ - || (x)==PIX_FMT_RGB32_1 \ - || (x)==PIX_FMT_BGR24 \ - || (x)==PIX_FMT_BGR565 \ - || (x)==PIX_FMT_BGR555 \ - || (x)==PIX_FMT_BGR32 \ - || (x)==PIX_FMT_BGR32_1 \ - || (x)==PIX_FMT_RGB24 \ - || (x)==PIX_FMT_RGB565 \ - || (x)==PIX_FMT_RGB555 \ - || (x)==PIX_FMT_GRAY8 \ - || (x)==PIX_FMT_YUV410P \ - || (x)==PIX_FMT_YUV440P \ - || (x)==PIX_FMT_NV12 \ - || (x)==PIX_FMT_NV21 \ - || (x)==PIX_FMT_GRAY16BE \ - || (x)==PIX_FMT_GRAY16LE \ - || (x)==PIX_FMT_YUV444P \ - || (x)==PIX_FMT_YUV422P \ - || (x)==PIX_FMT_YUV411P \ - || (x)==PIX_FMT_YUVJ420P \ - || (x)==PIX_FMT_YUVJ422P \ - || (x)==PIX_FMT_YUVJ440P \ - || (x)==PIX_FMT_YUVJ444P \ - || (x)==PIX_FMT_PAL8 \ - || (x)==PIX_FMT_BGR8 \ - || (x)==PIX_FMT_RGB8 \ - || (x)==PIX_FMT_BGR4_BYTE \ - || (x)==PIX_FMT_RGB4_BYTE \ - || (x)==PIX_FMT_YUV440P \ - || (x)==PIX_FMT_MONOWHITE \ - || (x)==PIX_FMT_MONOBLACK \ - || (x)==PIX_FMT_YUV420P16LE \ - || (x)==PIX_FMT_YUV422P16LE \ - || (x)==PIX_FMT_YUV444P16LE \ - || (x)==PIX_FMT_YUV420P16BE \ - || (x)==PIX_FMT_YUV422P16BE \ - || (x)==PIX_FMT_YUV444P16BE \ - ) +typedef struct FormatEntry { + int is_supported_in, is_supported_out; +} FormatEntry; + +const static FormatEntry format_entries[PIX_FMT_NB] = { + [PIX_FMT_YUV420P] = { 1 , 1 }, + [PIX_FMT_YUYV422] = { 1 , 1 }, + [PIX_FMT_RGB24] = { 1 , 1 }, + [PIX_FMT_BGR24] = { 1 , 1 }, + [PIX_FMT_YUV422P] = { 1 , 1 }, + [PIX_FMT_YUV444P] = { 1 , 1 }, + [PIX_FMT_YUV410P] = { 1 , 1 }, + [PIX_FMT_YUV411P] = { 1 , 1 }, + [PIX_FMT_GRAY8] = { 1 , 1 }, + [PIX_FMT_MONOWHITE] = { 1 , 1 }, + [PIX_FMT_MONOBLACK] = { 1 , 1 }, + [PIX_FMT_PAL8] = { 1 , 0 }, + [PIX_FMT_YUVJ420P] = { 1 , 1 }, + [PIX_FMT_YUVJ422P] = { 1 , 1 }, + [PIX_FMT_YUVJ444P] = { 1 , 1 }, + [PIX_FMT_UYVY422] = { 1 , 1 }, + [PIX_FMT_UYYVYY411] = { 0 , 0 }, + [PIX_FMT_BGR8] = { 1 , 1 }, + [PIX_FMT_BGR4] = { 0 , 1 }, + [PIX_FMT_BGR4_BYTE] = { 1 , 1 }, + [PIX_FMT_RGB8] = { 1 , 1 }, + [PIX_FMT_RGB4] = { 0 , 1 }, + [PIX_FMT_RGB4_BYTE] = { 1 , 1 }, + [PIX_FMT_NV12] = { 1 , 1 }, + [PIX_FMT_NV21] = { 1 , 1 }, + [PIX_FMT_ARGB] = { 1 , 1 }, + [PIX_FMT_RGBA] = { 1 , 1 }, + [PIX_FMT_ABGR] = { 1 , 1 }, + [PIX_FMT_BGRA] = { 1 , 1 }, + [PIX_FMT_GRAY16BE] = { 1 , 1 }, + [PIX_FMT_GRAY16LE] = { 1 , 1 }, + [PIX_FMT_YUV440P] = { 1 , 1 }, + [PIX_FMT_YUVJ440P] = { 1 , 1 }, + [PIX_FMT_YUVA420P] = { 1 , 1 }, + [PIX_FMT_RGB48BE] = { 1 , 1 }, + [PIX_FMT_RGB48LE] = { 1 , 1 }, + [PIX_FMT_RGB565BE] = { 1 , 1 }, + [PIX_FMT_RGB565LE] = { 1 , 1 }, + [PIX_FMT_RGB555BE] = { 1 , 1 }, + [PIX_FMT_RGB555LE] = { 1 , 1 }, + [PIX_FMT_BGR565BE] = { 1 , 1 }, + [PIX_FMT_BGR565LE] = { 1 , 1 }, + [PIX_FMT_BGR555BE] = { 1 , 1 }, + [PIX_FMT_BGR555LE] = { 1 , 1 }, + [PIX_FMT_YUV420P16LE] = { 1 , 1 }, + [PIX_FMT_YUV420P16BE] = { 1 , 1 }, + [PIX_FMT_YUV422P16LE] = { 1 , 1 }, + [PIX_FMT_YUV422P16BE] = { 1 , 1 }, + [PIX_FMT_YUV444P16LE] = { 1 , 1 }, + [PIX_FMT_YUV444P16BE] = { 1 , 1 }, + [PIX_FMT_RGB444LE] = { 0 , 1 }, + [PIX_FMT_RGB444BE] = { 0 , 1 }, + [PIX_FMT_BGR444LE] = { 0 , 1 }, + [PIX_FMT_BGR444BE] = { 0 , 1 }, + [PIX_FMT_Y400A] = { 1 , 0 }, + [PIX_FMT_BGR48BE] = { 1 , 1 }, + [PIX_FMT_BGR48LE] = { 1 , 1 }, + [PIX_FMT_YUV420P9BE] = { 1 , 1 }, + [PIX_FMT_YUV420P9LE] = { 1 , 1 }, + [PIX_FMT_YUV420P10BE] = { 1 , 1 }, + [PIX_FMT_YUV420P10LE] = { 1 , 1 }, + [PIX_FMT_YUV422P9BE] = { 1 , 1 }, + [PIX_FMT_YUV422P9LE] = { 1 , 1 }, + [PIX_FMT_YUV422P10BE] = { 1 , 1 }, + [PIX_FMT_YUV422P10LE] = { 1 , 1 }, + [PIX_FMT_YUV444P9BE] = { 1 , 1 }, + [PIX_FMT_YUV444P9LE] = { 1 , 1 }, + [PIX_FMT_YUV444P10BE] = { 1 , 1 }, + [PIX_FMT_YUV444P10LE] = { 1 , 1 }, + [PIX_FMT_GBRP] = { 1 , 0 }, + [PIX_FMT_GBRP9LE] = { 1 , 0 }, + [PIX_FMT_GBRP9BE] = { 1 , 0 }, + [PIX_FMT_GBRP10LE] = { 1 , 0 }, + [PIX_FMT_GBRP10BE] = { 1 , 0 }, + [PIX_FMT_GBRP16LE] = { 1 , 0 }, + [PIX_FMT_GBRP16BE] = { 1 , 0 }, +}; int sws_isSupportedInput(enum PixelFormat pix_fmt) { - return isSupportedIn(pix_fmt); + return (unsigned)pix_fmt < PIX_FMT_NB ? + format_entries[pix_fmt].is_supported_in : 0; } -#define isSupportedOut(x) ( \ - (x)==PIX_FMT_YUV420P \ - || (x)==PIX_FMT_YUVA420P \ - || (x)==PIX_FMT_YUYV422 \ - || (x)==PIX_FMT_UYVY422 \ - || (x)==PIX_FMT_YUV444P \ - || (x)==PIX_FMT_YUV422P \ - || (x)==PIX_FMT_YUV411P \ - || (x)==PIX_FMT_YUVJ420P \ - || (x)==PIX_FMT_YUVJ422P \ - || (x)==PIX_FMT_YUVJ440P \ - || (x)==PIX_FMT_YUVJ444P \ - || isAnyRGB(x) \ - || (x)==PIX_FMT_NV12 \ - || (x)==PIX_FMT_NV21 \ - || (x)==PIX_FMT_GRAY16BE \ - || (x)==PIX_FMT_GRAY16LE \ - || (x)==PIX_FMT_GRAY8 \ - || (x)==PIX_FMT_YUV410P \ - || (x)==PIX_FMT_YUV440P \ - || (x)==PIX_FMT_YUV420P16LE \ - || (x)==PIX_FMT_YUV422P16LE \ - || (x)==PIX_FMT_YUV444P16LE \ - || (x)==PIX_FMT_YUV420P16BE \ - || (x)==PIX_FMT_YUV422P16BE \ - || (x)==PIX_FMT_YUV444P16BE \ - ) - int sws_isSupportedOutput(enum PixelFormat pix_fmt) { - return isSupportedOut(pix_fmt); + return (unsigned)pix_fmt < PIX_FMT_NB ? + format_entries[pix_fmt].is_supported_out : 0; } extern const int32_t ff_yuv2rgb_coeffs[8][4]; @@ -160,7 +172,6 @@ const char *sws_format_name(enum PixelFormat format) static double getSplineCoeff(double a, double b, double c, double d, double dist) { -// printf("%f %f %f %f %f\n", a,b,c,d,dist); if (dist<=1.0) return ((d*dist + c)*dist + b)*dist +a; else return getSplineCoeff( 0.0, b+ 2.0*c + 3.0*d, @@ -170,7 +181,7 @@ static double getSplineCoeff(double a, double b, double c, double d, double dist } static int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc, - int srcW, int dstW, int filterAlign, int one, int flags, + int srcW, int dstW, int filterAlign, int one, int flags, int cpu_flags, SwsVector *srcFilter, SwsVector *dstFilter, double param[2]) { int i; @@ -181,13 +192,11 @@ static int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSi int64_t *filter2=NULL; const int64_t fone= 1LL<<54; int ret= -1; -#if ARCH_X86 - if (flags & SWS_CPU_CAPS_MMX) - __asm__ volatile("emms\n\t"::: "memory"); //FIXME this should not be required but it IS (even for non-MMX versions) -#endif - // NOTE: the +1 is for the MMX scaler which reads over the end - FF_ALLOC_OR_GOTO(NULL, *filterPos, (dstW+1)*sizeof(int16_t), fail); + emms_c(); //FIXME this should not be required but it IS (even for non-MMX versions) + + // NOTE: the +3 is for the MMX(+1)/SSE(+3) scaler which reads over the end + FF_ALLOC_OR_GOTO(NULL, *filterPos, (dstW+3)*sizeof(int16_t), fail); if (FFABS(xInc - 0x10000) <10) { // unscaled int i; @@ -275,15 +284,18 @@ static int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSi if (flags & SWS_BICUBIC) { int64_t B= (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1<<24); int64_t C= (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1<<24); - int64_t dd = ( d*d)>>30; - int64_t ddd= (dd*d)>>30; - if (d < 1LL<<30) - coeff = (12*(1<<24)-9*B-6*C)*ddd + (-18*(1<<24)+12*B+6*C)*dd + (6*(1<<24)-2*B)*(1<<30); - else if (d < 1LL<<31) - coeff = (-B-6*C)*ddd + (6*B+30*C)*dd + (-12*B-48*C)*d + (8*B+24*C)*(1<<30); - else - coeff=0.0; + if (d >= 1LL<<31) { + coeff = 0.0; + } else { + int64_t dd = (d * d) >> 30; + int64_t ddd = (dd * d) >> 30; + + if (d < 1LL<<30) + coeff = (12*(1<<24)-9*B-6*C)*ddd + (-18*(1<<24)+12*B+6*C)*dd + (6*(1<<24)-2*B)*(1<<30); + else + coeff = (-B-6*C)*ddd + (6*B+30*C)*dd + (-12*B-48*C)*d + (8*B+24*C)*(1<<30); + } coeff *= fone>>(30+24); } /* else if (flags & SWS_X) { @@ -401,7 +413,7 @@ static int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSi if (min>minFilterSize) minFilterSize= min; } - if (flags & SWS_CPU_CAPS_ALTIVEC) { + if (HAVE_ALTIVEC && cpu_flags & AV_CPU_FLAG_ALTIVEC) { // we can handle the special case 4, // so we don't want to go to the full 8 if (minFilterSize < 5) @@ -416,7 +428,7 @@ static int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSi filterAlign = 1; } - if (flags & SWS_CPU_CAPS_MMX) { + if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) { // special case for unscaled vertical filtering if (minFilterSize == 1 && filterAlign == 2) filterAlign= 1; @@ -473,7 +485,7 @@ static int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSi // Note the +1 is for the MMX scaler which reads over the end /* align at 16 for AltiVec (needed by hScale_altivec_real) */ - FF_ALLOCZ_OR_GOTO(NULL, *outFilter, *outFilterSize*(dstW+1)*sizeof(int16_t), fail); + FF_ALLOCZ_OR_GOTO(NULL, *outFilter, *outFilterSize*(dstW+3)*sizeof(int16_t), fail); /* normalize & store in outFilter */ for (i=0; isrcColorspaceTable, inv_table, sizeof(int)*4); memcpy(c->dstColorspaceTable, table, sizeof(int)*4); @@ -684,17 +702,20 @@ int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange c->dstRange = dstRange; if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1; + c->dstFormatBpp = av_get_bits_per_pixel(&av_pix_fmt_descriptors[c->dstFormat]); + c->srcFormatBpp = av_get_bits_per_pixel(&av_pix_fmt_descriptors[c->srcFormat]); + ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation); //FIXME factorize -#if HAVE_ALTIVEC - if (c->flags & SWS_CPU_CAPS_ALTIVEC) + if (HAVE_ALTIVEC && av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) ff_yuv2rgb_init_tables_altivec(c, inv_table, brightness, contrast, saturation); -#endif return 0; } -int sws_getColorspaceDetails(SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation) +int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table, + int *srcRange, int **table, int *dstRange, + int *brightness, int *contrast, int *saturation) { if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1; @@ -720,39 +741,45 @@ static int handle_jpeg(enum PixelFormat *format) } } -SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, - int dstW, int dstH, enum PixelFormat dstFormat, int flags, - SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param) +SwsContext *sws_alloc_context(void) +{ + SwsContext *c= av_mallocz(sizeof(SwsContext)); + + c->av_class = &sws_context_class; + av_opt_set_defaults(c); + + return c; +} + +int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter) { - SwsContext *c; int i; int usesVFilter, usesHFilter; int unscaled; - int srcRange, dstRange; SwsFilter dummyFilter= {NULL, NULL, NULL, NULL}; -#if ARCH_X86 - if (flags & SWS_CPU_CAPS_MMX) - __asm__ volatile("emms\n\t"::: "memory"); -#endif - -#if !CONFIG_RUNTIME_CPUDETECT //ensure that the flags match the compiled variant if cpudetect is off - flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW|SWS_CPU_CAPS_ALTIVEC|SWS_CPU_CAPS_BFIN); - flags |= ff_hardcodedcpuflags(); -#endif /* CONFIG_RUNTIME_CPUDETECT */ - if (!rgb15to16) sws_rgb2rgb_init(flags); + int srcW= c->srcW; + int srcH= c->srcH; + int dstW= c->dstW; + int dstH= c->dstH; + int dst_stride = FFALIGN(dstW * sizeof(int16_t) + 16, 16), dst_stride_px = dst_stride >> 1; + int flags, cpu_flags; + enum PixelFormat srcFormat= c->srcFormat; + enum PixelFormat dstFormat= c->dstFormat; + + cpu_flags = av_get_cpu_flags(); + flags = c->flags; + emms_c(); + if (!rgb15to16) sws_rgb2rgb_init(); unscaled = (srcW == dstW && srcH == dstH); - srcRange = handle_jpeg(&srcFormat); - dstRange = handle_jpeg(&dstFormat); - - if (!isSupportedIn(srcFormat)) { - av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as input pixel format\n", sws_format_name(srcFormat)); - return NULL; + if (!sws_isSupportedInput(srcFormat)) { + av_log(c, AV_LOG_ERROR, "%s is not supported as input pixel format\n", sws_format_name(srcFormat)); + return AVERROR(EINVAL); } - if (!isSupportedOut(dstFormat)) { - av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as output pixel format\n", sws_format_name(dstFormat)); - return NULL; + if (!sws_isSupportedOutput(dstFormat)) { + av_log(c, AV_LOG_ERROR, "%s is not supported as output pixel format\n", sws_format_name(dstFormat)); + return AVERROR(EINVAL); } i= flags & ( SWS_POINT @@ -767,36 +794,21 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, |SWS_SPLINE |SWS_BICUBLIN); if(!i || (i & (i-1))) { - av_log(NULL, AV_LOG_ERROR, "swScaler: Exactly one scaler algorithm must be chosen\n"); - return NULL; + av_log(c, AV_LOG_ERROR, "Exactly one scaler algorithm must be chosen\n"); + return AVERROR(EINVAL); } - /* sanity check */ if (srcW<4 || srcH<1 || dstW<8 || dstH<1) { //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code - av_log(NULL, AV_LOG_ERROR, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n", + av_log(c, AV_LOG_ERROR, "%dx%d -> %dx%d is invalid scaling dimension\n", srcW, srcH, dstW, dstH); - return NULL; - } - if(srcW > VOFW || dstW > VOFW) { - av_log(NULL, AV_LOG_ERROR, "swScaler: Compile-time maximum width is "AV_STRINGIFY(VOFW)" change VOF/VOFW and recompile\n"); - return NULL; + return AVERROR(EINVAL); } if (!dstFilter) dstFilter= &dummyFilter; if (!srcFilter) srcFilter= &dummyFilter; - FF_ALLOCZ_OR_GOTO(NULL, c, sizeof(SwsContext), fail); - - c->av_class = &sws_context_class; - c->srcW= srcW; - c->srcH= srcH; - c->dstW= dstW; - c->dstH= dstH; c->lumXInc= ((srcW<<16) + (dstW>>1))/dstW; c->lumYInc= ((srcH<<16) + (dstH>>1))/dstH; - c->flags= flags; - c->dstFormat= dstFormat; - c->srcFormat= srcFormat; c->dstFormatBpp = av_get_bits_per_pixel(&av_pix_fmt_descriptors[dstFormat]); c->srcFormatBpp = av_get_bits_per_pixel(&av_pix_fmt_descriptors[srcFormat]); c->vRounder= 4* 0x0001000100010001ULL; @@ -814,6 +826,19 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat); // reuse chroma for 2 pixels RGB/BGR unless user wants full chroma interpolation + if (flags & SWS_FULL_CHR_H_INT && + dstFormat != PIX_FMT_RGBA && + dstFormat != PIX_FMT_ARGB && + dstFormat != PIX_FMT_BGRA && + dstFormat != PIX_FMT_ABGR && + dstFormat != PIX_FMT_RGB24 && + dstFormat != PIX_FMT_BGR24) { + av_log(c, AV_LOG_ERROR, + "full chroma interpolation for destination format '%s' not yet implemented\n", + sws_format_name(dstFormat)); + flags &= ~SWS_FULL_CHR_H_INT; + c->flags = flags; + } if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1; // drop some chroma lines if the user wants it @@ -825,38 +850,39 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, && srcFormat!=PIX_FMT_RGB8 && srcFormat!=PIX_FMT_BGR8 && srcFormat!=PIX_FMT_RGB4 && srcFormat!=PIX_FMT_BGR4 && srcFormat!=PIX_FMT_RGB4_BYTE && srcFormat!=PIX_FMT_BGR4_BYTE - && ((dstW>>c->chrDstHSubSample) <= (srcW>>1) || (flags&(SWS_FAST_BILINEAR|SWS_POINT)))) + && ((dstW>>c->chrDstHSubSample) <= (srcW>>1) || (flags&SWS_FAST_BILINEAR))) c->chrSrcHSubSample=1; - if (param) { - c->param[0] = param[0]; - c->param[1] = param[1]; - } else { - c->param[0] = - c->param[1] = SWS_PARAM_DEFAULT; - } - // Note the -((-x)>>y) is so that we always round toward +inf. c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample); c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample); c->chrDstW= -((-dstW) >> c->chrDstHSubSample); c->chrDstH= -((-dstH) >> c->chrDstVSubSample); - sws_setColorspaceDetails(c, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], srcRange, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT] /* FIXME*/, dstRange, 0, 1<<16, 1<<16); - /* unscaled special cases */ - if (unscaled && !usesHFilter && !usesVFilter && (srcRange == dstRange || isAnyRGB(dstFormat))) { + if (unscaled && !usesHFilter && !usesVFilter && (c->srcRange == c->dstRange || isAnyRGB(dstFormat))) { ff_get_unscaled_swscale(c); if (c->swScale) { if (flags&SWS_PRINT_INFO) av_log(c, AV_LOG_INFO, "using unscaled %s -> %s special converter\n", sws_format_name(srcFormat), sws_format_name(dstFormat)); - return c; + return 0; } } - if (flags & SWS_CPU_CAPS_MMX2) { + c->srcBpc = 1 + av_pix_fmt_descriptors[srcFormat].comp[0].depth_minus1; + if (c->srcBpc < 8) + c->srcBpc = 8; + c->dstBpc = 1 + av_pix_fmt_descriptors[dstFormat].comp[0].depth_minus1; + if (c->dstBpc < 8) + c->dstBpc = 8; + if (c->dstBpc == 16) + dst_stride <<= 1; + FF_ALLOC_OR_GOTO(c, c->formatConvBuffer, + (FFALIGN(srcW, 16) * 2 * FFALIGN(c->srcBpc, 8) >> 3) + 16, + fail); + if (HAVE_MMX2 && cpu_flags & AV_CPU_FLAG_MMX2 && c->srcBpc == 8 && c->dstBpc <= 10) { c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0; if (!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR)) { if (flags&SWS_PRINT_INFO) @@ -882,7 +908,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, c->chrXInc+= 20; } //we don't use the x86 asm scaler if MMX is available - else if (flags & SWS_CPU_CAPS_MMX) { + else if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) { c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20; c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20; } @@ -890,7 +916,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, /* precalculate horizontal scaler filter coefficients */ { -#if ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) +#if HAVE_MMX2 // can't downscale !!! if (c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR)) { c->lumMmx2FilterCodeSize = initMMX2HScaler( dstW, c->lumXInc, NULL, NULL, NULL, 8); @@ -908,7 +934,7 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, #endif if (!c->lumMmx2FilterCode || !c->chrMmx2FilterCode) - goto fail; + return AVERROR(ENOMEM); FF_ALLOCZ_OR_GOTO(c, c->hLumFilter , (dstW /8+8)*sizeof(int16_t), fail); FF_ALLOCZ_OR_GOTO(c, c->hChrFilter , (c->chrDstW /4+8)*sizeof(int16_t), fail); FF_ALLOCZ_OR_GOTO(c, c->hLumFilterPos, (dstW /2/8+8)*sizeof(int32_t), fail); @@ -922,21 +948,21 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, mprotect(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize, PROT_EXEC | PROT_READ); #endif } else -#endif /* ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) */ +#endif /* HAVE_MMX2 */ { const int filterAlign= - (flags & SWS_CPU_CAPS_MMX) ? 4 : - (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 : + (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) ? 4 : + (HAVE_ALTIVEC && cpu_flags & AV_CPU_FLAG_ALTIVEC) ? 8 : 1; if (initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc, srcW , dstW, filterAlign, 1<<14, - (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags, + (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags, cpu_flags, srcFilter->lumH, dstFilter->lumH, c->param) < 0) goto fail; if (initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc, c->chrSrcW, c->chrDstW, filterAlign, 1<<14, - (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags, + (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags, cpu_flags, srcFilter->chrH, dstFilter->chrH, c->param) < 0) goto fail; } @@ -945,18 +971,18 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, /* precalculate vertical scaler filter coefficients */ { const int filterAlign= - (flags & SWS_CPU_CAPS_MMX) && (flags & SWS_ACCURATE_RND) ? 2 : - (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 : + (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) ? 2 : + (HAVE_ALTIVEC && cpu_flags & AV_CPU_FLAG_ALTIVEC) ? 8 : 1; if (initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc, srcH , dstH, filterAlign, (1<<12), - (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags, + (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags, cpu_flags, srcFilter->lumV, dstFilter->lumV, c->param) < 0) goto fail; if (initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc, c->chrSrcH, c->chrDstH, filterAlign, (1<<12), - (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags, + (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags, cpu_flags, srcFilter->chrV, dstFilter->chrV, c->param) < 0) goto fail; @@ -999,57 +1025,49 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, // allocate pixbufs (we use dynamic allocation because otherwise we would need to // allocate several megabytes to handle all possible cases) FF_ALLOC_OR_GOTO(c, c->lumPixBuf, c->vLumBufSize*2*sizeof(int16_t*), fail); - FF_ALLOC_OR_GOTO(c, c->chrPixBuf, c->vChrBufSize*2*sizeof(int16_t*), fail); + FF_ALLOC_OR_GOTO(c, c->chrUPixBuf, c->vChrBufSize*2*sizeof(int16_t*), fail); + FF_ALLOC_OR_GOTO(c, c->chrVPixBuf, c->vChrBufSize*2*sizeof(int16_t*), fail); if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf, c->vLumBufSize*2*sizeof(int16_t*), fail); //Note we need at least one pixel more at the end because of the MMX code (just in case someone wanna replace the 4000/8000) /* align at 16 bytes for AltiVec */ for (i=0; ivLumBufSize; i++) { - FF_ALLOCZ_OR_GOTO(c, c->lumPixBuf[i+c->vLumBufSize], VOF+1, fail); + FF_ALLOCZ_OR_GOTO(c, c->lumPixBuf[i+c->vLumBufSize], dst_stride+16, fail); c->lumPixBuf[i] = c->lumPixBuf[i+c->vLumBufSize]; } + // 64 / (c->dstBpc & ~7) is the same as 16 / sizeof(scaling_intermediate) + c->uv_off_px = dst_stride_px + 64 / (c->dstBpc &~ 7); + c->uv_off_byte = dst_stride + 16; for (i=0; ivChrBufSize; i++) { - FF_ALLOC_OR_GOTO(c, c->chrPixBuf[i+c->vChrBufSize], (VOF+1)*2, fail); - c->chrPixBuf[i] = c->chrPixBuf[i+c->vChrBufSize]; + FF_ALLOC_OR_GOTO(c, c->chrUPixBuf[i+c->vChrBufSize], dst_stride*2+32, fail); + c->chrUPixBuf[i] = c->chrUPixBuf[i+c->vChrBufSize]; + c->chrVPixBuf[i] = c->chrVPixBuf[i+c->vChrBufSize] = c->chrUPixBuf[i] + (dst_stride >> 1) + 8; } if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) for (i=0; ivLumBufSize; i++) { - FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf[i+c->vLumBufSize], VOF+1, fail); + FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf[i+c->vLumBufSize], dst_stride+16, fail); c->alpPixBuf[i] = c->alpPixBuf[i+c->vLumBufSize]; } //try to avoid drawing green stuff between the right end and the stride end - for (i=0; ivChrBufSize; i++) memset(c->chrPixBuf[i], 64, (VOF+1)*2); - - assert(2*VOFW == VOF); + for (i=0; ivChrBufSize; i++) + memset(c->chrUPixBuf[i], 64, dst_stride*2+1); assert(c->chrDstH <= dstH); if (flags&SWS_PRINT_INFO) { - if (flags&SWS_FAST_BILINEAR) - av_log(c, AV_LOG_INFO, "FAST_BILINEAR scaler, "); - else if (flags&SWS_BILINEAR) - av_log(c, AV_LOG_INFO, "BILINEAR scaler, "); - else if (flags&SWS_BICUBIC) - av_log(c, AV_LOG_INFO, "BICUBIC scaler, "); - else if (flags&SWS_X) - av_log(c, AV_LOG_INFO, "Experimental scaler, "); - else if (flags&SWS_POINT) - av_log(c, AV_LOG_INFO, "Nearest Neighbor / POINT scaler, "); - else if (flags&SWS_AREA) - av_log(c, AV_LOG_INFO, "Area Averaging scaler, "); - else if (flags&SWS_BICUBLIN) - av_log(c, AV_LOG_INFO, "luma BICUBIC / chroma BILINEAR scaler, "); - else if (flags&SWS_GAUSS) - av_log(c, AV_LOG_INFO, "Gaussian scaler, "); - else if (flags&SWS_SINC) - av_log(c, AV_LOG_INFO, "Sinc scaler, "); - else if (flags&SWS_LANCZOS) - av_log(c, AV_LOG_INFO, "Lanczos scaler, "); - else if (flags&SWS_SPLINE) - av_log(c, AV_LOG_INFO, "Bicubic spline scaler, "); - else - av_log(c, AV_LOG_INFO, "ehh flags invalid?! "); + if (flags&SWS_FAST_BILINEAR) av_log(c, AV_LOG_INFO, "FAST_BILINEAR scaler, "); + else if (flags&SWS_BILINEAR) av_log(c, AV_LOG_INFO, "BILINEAR scaler, "); + else if (flags&SWS_BICUBIC) av_log(c, AV_LOG_INFO, "BICUBIC scaler, "); + else if (flags&SWS_X) av_log(c, AV_LOG_INFO, "Experimental scaler, "); + else if (flags&SWS_POINT) av_log(c, AV_LOG_INFO, "Nearest Neighbor / POINT scaler, "); + else if (flags&SWS_AREA) av_log(c, AV_LOG_INFO, "Area Averaging scaler, "); + else if (flags&SWS_BICUBLIN) av_log(c, AV_LOG_INFO, "luma BICUBIC / chroma BILINEAR scaler, "); + else if (flags&SWS_GAUSS) av_log(c, AV_LOG_INFO, "Gaussian scaler, "); + else if (flags&SWS_SINC) av_log(c, AV_LOG_INFO, "Sinc scaler, "); + else if (flags&SWS_LANCZOS) av_log(c, AV_LOG_INFO, "Lanczos scaler, "); + else if (flags&SWS_SPLINE) av_log(c, AV_LOG_INFO, "Bicubic spline scaler, "); + else av_log(c, AV_LOG_INFO, "ehh flags invalid?! "); av_log(c, AV_LOG_INFO, "from %s to %s%s ", sws_format_name(srcFormat), @@ -1062,72 +1080,11 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, #endif sws_format_name(dstFormat)); - if (flags & SWS_CPU_CAPS_MMX2) - av_log(c, AV_LOG_INFO, "using MMX2\n"); - else if (flags & SWS_CPU_CAPS_3DNOW) - av_log(c, AV_LOG_INFO, "using 3DNOW\n"); - else if (flags & SWS_CPU_CAPS_MMX) - av_log(c, AV_LOG_INFO, "using MMX\n"); - else if (flags & SWS_CPU_CAPS_ALTIVEC) - av_log(c, AV_LOG_INFO, "using AltiVec\n"); - else - av_log(c, AV_LOG_INFO, "using C\n"); - - if (flags & SWS_CPU_CAPS_MMX) { - if (c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR)) - av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR MMX2 scaler for horizontal scaling\n"); - else { - if (c->hLumFilterSize==4) - av_log(c, AV_LOG_VERBOSE, "using 4-tap MMX scaler for horizontal luminance scaling\n"); - else if (c->hLumFilterSize==8) - av_log(c, AV_LOG_VERBOSE, "using 8-tap MMX scaler for horizontal luminance scaling\n"); - else - av_log(c, AV_LOG_VERBOSE, "using n-tap MMX scaler for horizontal luminance scaling\n"); - - if (c->hChrFilterSize==4) - av_log(c, AV_LOG_VERBOSE, "using 4-tap MMX scaler for horizontal chrominance scaling\n"); - else if (c->hChrFilterSize==8) - av_log(c, AV_LOG_VERBOSE, "using 8-tap MMX scaler for horizontal chrominance scaling\n"); - else - av_log(c, AV_LOG_VERBOSE, "using n-tap MMX scaler for horizontal chrominance scaling\n"); - } - } else { -#if ARCH_X86 - av_log(c, AV_LOG_VERBOSE, "using x86 asm scaler for horizontal scaling\n"); -#else - if (flags & SWS_FAST_BILINEAR) - av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR C scaler for horizontal scaling\n"); - else - av_log(c, AV_LOG_VERBOSE, "using C scaler for horizontal scaling\n"); -#endif - } - if (isPlanarYUV(dstFormat)) { - if (c->vLumFilterSize==1) - av_log(c, AV_LOG_VERBOSE, "using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"); - else - av_log(c, AV_LOG_VERBOSE, "using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"); - } else { - if (c->vLumFilterSize==1 && c->vChrFilterSize==2) - av_log(c, AV_LOG_VERBOSE, "using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n" - " 2-tap scaler for vertical chrominance scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"); - else if (c->vLumFilterSize==2 && c->vChrFilterSize==2) - av_log(c, AV_LOG_VERBOSE, "using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"); - else - av_log(c, AV_LOG_VERBOSE, "using n-tap %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"); - } - - if (dstFormat==PIX_FMT_BGR24) - av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR24 converter\n", - (flags & SWS_CPU_CAPS_MMX2) ? "MMX2" : ((flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C")); - else if (dstFormat==PIX_FMT_RGB32) - av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR32 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"); - else if (dstFormat==PIX_FMT_BGR565) - av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR16 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"); - else if (dstFormat==PIX_FMT_BGR555) - av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR15 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"); - else if (dstFormat == PIX_FMT_RGB444BE || dstFormat == PIX_FMT_RGB444LE || - dstFormat == PIX_FMT_BGR444BE || dstFormat == PIX_FMT_BGR444LE) - av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR12 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"); + if (HAVE_MMX2 && cpu_flags & AV_CPU_FLAG_MMX2) av_log(c, AV_LOG_INFO, "using MMX2\n"); + else if (HAVE_AMD3DNOW && cpu_flags & AV_CPU_FLAG_3DNOW) av_log(c, AV_LOG_INFO, "using 3DNOW\n"); + else if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) av_log(c, AV_LOG_INFO, "using MMX\n"); + else if (HAVE_ALTIVEC && cpu_flags & AV_CPU_FLAG_ALTIVEC) av_log(c, AV_LOG_INFO, "using AltiVec\n"); + else av_log(c, AV_LOG_INFO, "using C\n"); av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH); av_log(c, AV_LOG_DEBUG, "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n", @@ -1137,12 +1094,45 @@ SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, } c->swScale= ff_getSwsFunc(c); - return c; + return 0; +fail: //FIXME replace things by appropriate error codes + return -1; +} -fail: - sws_freeContext(c); - return NULL; +#if FF_API_SWS_GETCONTEXT +SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, + int dstW, int dstH, enum PixelFormat dstFormat, int flags, + SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param) +{ + SwsContext *c; + + if(!(c=sws_alloc_context())) + return NULL; + + c->flags= flags; + c->srcW= srcW; + c->srcH= srcH; + c->dstW= dstW; + c->dstH= dstH; + c->srcRange = handle_jpeg(&srcFormat); + c->dstRange = handle_jpeg(&dstFormat); + c->srcFormat= srcFormat; + c->dstFormat= dstFormat; + + if (param) { + c->param[0] = param[0]; + c->param[1] = param[1]; + } + sws_setColorspaceDetails(c, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], c->srcRange, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT] /* FIXME*/, c->dstRange, 0, 1<<16, 1<<16); + + if(sws_init_context(c, srcFilter, dstFilter) < 0){ + sws_freeContext(c); + return NULL; + } + + return c; } +#endif SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, float lumaSharpen, float chromaSharpen, @@ -1416,13 +1406,6 @@ void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level) } } -#if LIBSWSCALE_VERSION_MAJOR < 1 -void sws_printVec(SwsVector *a) -{ - sws_printVec2(a, NULL, AV_LOG_DEBUG); -} -#endif - void sws_freeVec(SwsVector *a) { if (!a) return; @@ -1453,10 +1436,11 @@ void sws_freeContext(SwsContext *c) av_freep(&c->lumPixBuf); } - if (c->chrPixBuf) { + if (c->chrUPixBuf) { for (i=0; ivChrBufSize; i++) - av_freep(&c->chrPixBuf[i]); - av_freep(&c->chrPixBuf); + av_freep(&c->chrUPixBuf[i]); + av_freep(&c->chrUPixBuf); + av_freep(&c->chrVPixBuf); } if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) { @@ -1479,7 +1463,7 @@ void sws_freeContext(SwsContext *c) av_freep(&c->hLumFilterPos); av_freep(&c->hChrFilterPos); -#if ARCH_X86 +#if HAVE_MMX #ifdef MAP_ANONYMOUS if (c->lumMmx2FilterCode) munmap(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize); if (c->chrMmx2FilterCode) munmap(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize); @@ -1492,9 +1476,10 @@ void sws_freeContext(SwsContext *c) #endif c->lumMmx2FilterCode=NULL; c->chrMmx2FilterCode=NULL; -#endif /* ARCH_X86 */ +#endif /* HAVE_MMX */ av_freep(&c->yuvTable); + av_free(c->formatConvBuffer); av_free(c); } @@ -1524,9 +1509,24 @@ struct SwsContext *sws_getCachedContext(struct SwsContext *context, } if (!context) { - return sws_getContext(srcW, srcH, srcFormat, - dstW, dstH, dstFormat, flags, - srcFilter, dstFilter, param); + if (!(context = sws_alloc_context())) + return NULL; + context->srcW = srcW; + context->srcH = srcH; + context->srcRange = handle_jpeg(&srcFormat); + context->srcFormat = srcFormat; + context->dstW = dstW; + context->dstH = dstH; + context->dstRange = handle_jpeg(&dstFormat); + context->dstFormat = dstFormat; + context->flags = flags; + context->param[0] = param[0]; + context->param[1] = param[1]; + sws_setColorspaceDetails(context, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], context->srcRange, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT] /* FIXME*/, context->dstRange, 0, 1<<16, 1<<16); + if (sws_init_context(context, srcFilter, dstFilter) < 0) { + sws_freeContext(context); + return NULL; + } } return context; }