/*
* Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
*
- * 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 <inttypes.h>
#include <string.h>
#include <math.h>
#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)
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];
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,
}
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;
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;
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) {
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)
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;
// 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; i<dstW; i++) {
}
}
- (*filterPos)[dstW]= (*filterPos)[dstW-1]; // the MMX scaler will read over the end
+ (*filterPos)[dstW+0] =
+ (*filterPos)[dstW+1] =
+ (*filterPos)[dstW+2] = (*filterPos)[dstW-1]; // the MMX/SSE scaler will read over the end
for (i=0; i<*outFilterSize; i++) {
- int j= dstW*(*outFilterSize);
- (*outFilter)[j + i]= (*outFilter)[j + i - (*outFilterSize)];
+ int k= (dstW - 1) * (*outFilterSize) + i;
+ (*outFilter)[k + 1 * (*outFilterSize)] =
+ (*outFilter)[k + 2 * (*outFilterSize)] =
+ (*outFilter)[k + 3 * (*outFilterSize)] = (*outFilter)[k];
}
ret=0;
return ret;
}
-#if ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT)
+#if HAVE_MMX2
static int initMMX2HScaler(int dstW, int xInc, uint8_t *filterCode, int16_t *filter, int32_t *filterPos, int numSplits)
{
uint8_t *fragmentA;
return fragmentPos + 1;
}
-#endif /* ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) */
+#endif /* HAVE_MMX2 */
static void getSubSampleFactors(int *h, int *v, enum PixelFormat format)
{
*v = av_pix_fmt_descriptors[format].log2_chroma_h;
}
-int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation)
+int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],
+ int srcRange, const int table[4], int dstRange,
+ int brightness, int contrast, int saturation)
{
memcpy(c->srcColorspaceTable, inv_table, sizeof(int)*4);
memcpy(c->dstColorspaceTable, table, sizeof(int)*4);
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;
}
}
-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
|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;
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
&& 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)
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;
}
/* 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);
#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);
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;
}
/* 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;
// 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; i<c->vLumBufSize; 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; i<c->vChrBufSize; 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; i<c->vLumBufSize; 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; i<c->vChrBufSize; i++) memset(c->chrPixBuf[i], 64, (VOF+1)*2);
-
- assert(2*VOFW == VOF);
+ for (i=0; i<c->vChrBufSize; 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),
#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",
}
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,
}
}
-#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;
av_freep(&c->lumPixBuf);
}
- if (c->chrPixBuf) {
+ if (c->chrUPixBuf) {
for (i=0; i<c->vChrBufSize; 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) {
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);
#endif
c->lumMmx2FilterCode=NULL;
c->chrMmx2FilterCode=NULL;
-#endif /* ARCH_X86 */
+#endif /* HAVE_MMX */
av_freep(&c->yuvTable);
+ av_free(c->formatConvBuffer);
av_free(c);
}
}
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;
}
projects / ffmpeg / blobdiff