*
* This file is part of FFmpeg.
*
- * FFmpeg is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * 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.
*
* 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 General Public License for more details.
+ * 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 General Public License
- * along with FFmpeg; if not, write to the Free Software
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * the C code (not assembly, mmx, ...) of this file can be used
- * under the LGPL license too
*/
#define _SVID_SOURCE //needed for MAP_ANONYMOUS
+#define _DARWIN_C_SOURCE // needed for MAP_ANON
#include <inttypes.h>
#include <string.h>
#include <math.h>
return isSupportedOut(pix_fmt);
}
-#define usePal(x) (av_pix_fmt_descriptors[x].flags & PIX_FMT_PAL)
-
extern const int32_t ff_yuv2rgb_coeffs[8][4];
const char *sws_format_name(enum PixelFormat format)
}
/* else if (flags & SWS_X) {
double p= param ? param*0.01 : 0.3;
- coeff = d ? sin(d*PI)/(d*PI) : 1.0;
+ coeff = d ? sin(d*M_PI)/(d*M_PI) : 1.0;
coeff*= pow(2.0, - p*d*d);
}*/
else if (flags & SWS_X) {
return ret;
}
-#if ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
+#if ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT)
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) && CONFIG_GPL */
+#endif /* ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) */
static void getSubSampleFactors(int *h, int *v, enum PixelFormat format)
{
*v = av_pix_fmt_descriptors[format].log2_chroma_h;
}
-static uint16_t roundToInt16(int64_t f)
-{
- int r= (f + (1<<15))>>16;
- if (r<-0x7FFF) return 0x8000;
- else if (r> 0x7FFF) return 0x7FFF;
- else return r;
-}
+static int update_flags_cpu(int flags);
int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation)
{
- int64_t crv = inv_table[0];
- int64_t cbu = inv_table[1];
- int64_t cgu = -inv_table[2];
- int64_t cgv = -inv_table[3];
- int64_t cy = 1<<16;
- int64_t oy = 0;
-
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->uOffset= 0x0400040004000400LL;
- c->vOffset= 0x0400040004000400LL;
-
- if (!srcRange) {
- cy= (cy*255) / 219;
- oy= 16<<16;
- } else {
- crv= (crv*224) / 255;
- cbu= (cbu*224) / 255;
- cgu= (cgu*224) / 255;
- cgv= (cgv*224) / 255;
- }
-
- cy = (cy *contrast )>>16;
- crv= (crv*contrast * saturation)>>32;
- cbu= (cbu*contrast * saturation)>>32;
- cgu= (cgu*contrast * saturation)>>32;
- cgv= (cgv*contrast * saturation)>>32;
-
- oy -= 256*brightness;
-
- c->yCoeff= roundToInt16(cy *8192) * 0x0001000100010001ULL;
- c->vrCoeff= roundToInt16(crv*8192) * 0x0001000100010001ULL;
- c->ubCoeff= roundToInt16(cbu*8192) * 0x0001000100010001ULL;
- c->vgCoeff= roundToInt16(cgv*8192) * 0x0001000100010001ULL;
- c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
- c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
-
- c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy <<13);
- c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9);
- c->yuv2rgb_v2r_coeff= (int16_t)roundToInt16(crv<<13);
- c->yuv2rgb_v2g_coeff= (int16_t)roundToInt16(cgv<<13);
- c->yuv2rgb_u2g_coeff= (int16_t)roundToInt16(cgu<<13);
- c->yuv2rgb_u2b_coeff= (int16_t)roundToInt16(cbu<<13);
+ 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]);
+ c->flags = update_flags_cpu(c->flags);
ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation);
//FIXME factorize
-#if ARCH_PPC && (HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT)
+#if HAVE_ALTIVEC
if (c->flags & SWS_CPU_CAPS_ALTIVEC)
ff_yuv2rgb_init_tables_altivec(c, inv_table, brightness, contrast, saturation);
#endif
static int handle_jpeg(enum PixelFormat *format)
{
switch (*format) {
- case PIX_FMT_YUVJ420P:
- *format = PIX_FMT_YUV420P;
- return 1;
- case PIX_FMT_YUVJ422P:
- *format = PIX_FMT_YUV422P;
- return 1;
- case PIX_FMT_YUVJ444P:
- *format = PIX_FMT_YUV444P;
- return 1;
- case PIX_FMT_YUVJ440P:
- *format = PIX_FMT_YUV440P;
- return 1;
- default:
- return 0;
+ case PIX_FMT_YUVJ420P: *format = PIX_FMT_YUV420P; return 1;
+ case PIX_FMT_YUVJ422P: *format = PIX_FMT_YUV422P; return 1;
+ case PIX_FMT_YUVJ444P: *format = PIX_FMT_YUV444P; return 1;
+ case PIX_FMT_YUVJ440P: *format = PIX_FMT_YUV440P; return 1;
+ default: return 0;
}
}
-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)
+static int update_flags_cpu(int flags)
{
+#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_SSE2
+ |SWS_CPU_CAPS_ALTIVEC
+ |SWS_CPU_CAPS_BFIN);
+ flags |= ff_hardcodedcpuflags();
+#endif /* CONFIG_RUNTIME_CPUDETECT */
+ return flags;
+}
- SwsContext *c;
+SwsContext *sws_alloc_context(void){
+ SwsContext *c= av_mallocz(sizeof(SwsContext));
+
+ c->av_class = &sws_context_class;
+
+ return c;
+}
+
+int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter){
int i;
int usesVFilter, usesHFilter;
int unscaled;
- int srcRange, dstRange;
SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
+ int srcW= c->srcW;
+ int srcH= c->srcH;
+ int dstW= c->dstW;
+ int dstH= c->dstH;
+ int flags;
+ enum PixelFormat srcFormat= c->srcFormat;
+ enum PixelFormat dstFormat= c->dstFormat;
+
+ flags= c->flags = update_flags_cpu(c->flags);
#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);
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;
+ 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;
+ return AVERROR(EINVAL);
}
i= flags & ( SWS_POINT
|SWS_BICUBLIN);
if(!i || (i & (i-1))) {
av_log(NULL, AV_LOG_ERROR, "swScaler: Exactly one scaler algorithm must be chosen\n");
- return NULL;
+ 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",
srcW, srcH, dstW, dstH);
- return NULL;
+ return AVERROR(EINVAL);
}
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;
&& 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;
}
}
/* precalculate horizontal scaler filter coefficients */
{
-#if ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
+#if ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT)
// can't downscale !!!
if (c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR)) {
c->lumMmx2FilterCodeSize = initMMX2HScaler( dstW, c->lumXInc, NULL, NULL, NULL, 8);
c->chrMmx2FilterCodeSize = initMMX2HScaler(c->chrDstW, c->chrXInc, NULL, NULL, NULL, 4);
#ifdef MAP_ANONYMOUS
- c->lumMmx2FilterCode = mmap(NULL, c->lumMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
- c->chrMmx2FilterCode = mmap(NULL, c->chrMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+ c->lumMmx2FilterCode = mmap(NULL, c->lumMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ c->chrMmx2FilterCode = mmap(NULL, c->chrMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
#elif HAVE_VIRTUALALLOC
c->lumMmx2FilterCode = VirtualAlloc(NULL, c->lumMmx2FilterCodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
c->chrMmx2FilterCode = VirtualAlloc(NULL, c->chrMmx2FilterCodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
c->chrMmx2FilterCode = av_malloc(c->chrMmx2FilterCodeSize);
#endif
+ if (!c->lumMmx2FilterCode || !c->chrMmx2FilterCode)
+ 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) && CONFIG_GPL */
+#endif /* ARCH_X86 && (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) */
{
const int filterAlign=
(flags & SWS_CPU_CAPS_MMX) ? 4 :
srcFilter->chrV, dstFilter->chrV, c->param) < 0)
goto fail;
-#if ARCH_PPC && (HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT)
+#if HAVE_ALTIVEC
FF_ALLOC_OR_GOTO(c, c->vYCoeffsBank, sizeof (vector signed short)*c->vLumFilterSize*c->dstH, fail);
FF_ALLOC_OR_GOTO(c, c->vCCoeffsBank, sizeof (vector signed short)*c->vChrFilterSize*c->chrDstH, fail);
av_log(c, AV_LOG_INFO, "from %s to %s%s ",
sws_format_name(srcFormat),
#ifdef DITHER1XBPP
- dstFormat == PIX_FMT_BGR555 || dstFormat == PIX_FMT_BGR565 ? "dithered " : "",
+ dstFormat == PIX_FMT_BGR555 || dstFormat == PIX_FMT_BGR565 ||
+ dstFormat == PIX_FMT_RGB444BE || dstFormat == PIX_FMT_RGB444LE ||
+ dstFormat == PIX_FMT_BGR444BE || dstFormat == PIX_FMT_BGR444LE ? "dithered " : "",
#else
"",
#endif
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");
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;
+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];
+ } else {
+ c->param[0] =
+ c->param[1] = SWS_PARAM_DEFAULT;
+ }
+ 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;
}
SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
return sws_getConstVec(1.0, 1);
}
-double sws_dcVec(SwsVector *a)
+static double sws_dcVec(SwsVector *a)
{
int i;
double sum=0;
av_freep(&c->vChrFilter);
av_freep(&c->hLumFilter);
av_freep(&c->hChrFilter);
-#if ARCH_PPC && (HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT)
+#if HAVE_ALTIVEC
av_freep(&c->vYCoeffsBank);
av_freep(&c->vCCoeffsBank);
#endif
av_freep(&c->hLumFilterPos);
av_freep(&c->hChrFilterPos);
-#if ARCH_X86 && CONFIG_GPL
+#if ARCH_X86
#ifdef MAP_ANONYMOUS
if (c->lumMmx2FilterCode) munmap(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize);
if (c->chrMmx2FilterCode) munmap(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize);
#elif HAVE_VIRTUALALLOC
- if (c->lumMmx2FilterCode) VirtualFree(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize, MEM_RELEASE);
- if (c->chrMmx2FilterCode) VirtualFree(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize, MEM_RELEASE);
+ if (c->lumMmx2FilterCode) VirtualFree(c->lumMmx2FilterCode, 0, MEM_RELEASE);
+ if (c->chrMmx2FilterCode) VirtualFree(c->chrMmx2FilterCode, 0, MEM_RELEASE);
#else
av_free(c->lumMmx2FilterCode);
av_free(c->chrMmx2FilterCode);
#endif
c->lumMmx2FilterCode=NULL;
c->chrMmx2FilterCode=NULL;
-#endif /* ARCH_X86 && CONFIG_GPL */
+#endif /* ARCH_X86 */
av_freep(&c->yuvTable);
if (!param)
param = default_param;
+ flags = update_flags_cpu(flags);
+
if (context &&
(context->srcW != srcW ||
context->srcH != srcH ||
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