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authorDiego Biurrun <diego@biurrun.de>2012-04-01 10:34:10 +0200
committerDiego Biurrun <diego@biurrun.de>2012-04-13 19:22:00 +0200
commitef0ee7f657e66d91162d2b4fad882ece9fbb264e (patch)
treefd785cfe63776eebdfa8136b294ba287b0ffcb58
parent90a43060077dbbca7ef161a584e95cbc7466264d (diff)
downloadffmpeg-ef0ee7f657e66d91162d2b4fad882ece9fbb264e.tar.gz
swscale: K&R formatting cosmetics (part II)
Also adjust some comments including wording and typo fixes.
Diffstat
-rw-r--r--libswscale/swscale.c567
-rw-r--r--libswscale/swscale_internal.h8
-rw-r--r--libswscale/utils.c1473
3 files changed, 1128 insertions, 920 deletions
diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index a98a4bb90f..7ae5af37a8 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -18,61 +18,63 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <assert.h>
#include <inttypes.h>
-#include <string.h>
#include <math.h>
#include <stdio.h>
-#include "config.h"
-#include <assert.h>
-#include "swscale.h"
-#include "swscale_internal.h"
-#include "rgb2rgb.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/cpu.h"
+#include <string.h>
+
#include "libavutil/avutil.h"
-#include "libavutil/mathematics.h"
#include "libavutil/bswap.h"
+#include "libavutil/cpu.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/mathematics.h"
#include "libavutil/pixdesc.h"
+#include "config.h"
+#include "rgb2rgb.h"
+#include "swscale_internal.h"
+#include "swscale.h"
DECLARE_ALIGNED(8, const uint8_t, dither_8x8_128)[8][8] = {
-{ 36, 68, 60, 92, 34, 66, 58, 90,},
-{ 100, 4,124, 28, 98, 2,122, 26,},
-{ 52, 84, 44, 76, 50, 82, 42, 74,},
-{ 116, 20,108, 12,114, 18,106, 10,},
-{ 32, 64, 56, 88, 38, 70, 62, 94,},
-{ 96, 0,120, 24,102, 6,126, 30,},
-{ 48, 80, 40, 72, 54, 86, 46, 78,},
-{ 112, 16,104, 8,118, 22,110, 14,},
+ { 36, 68, 60, 92, 34, 66, 58, 90, },
+ { 100, 4, 124, 28, 98, 2, 122, 26, },
+ { 52, 84, 44, 76, 50, 82, 42, 74, },
+ { 116, 20, 108, 12, 114, 18, 106, 10, },
+ { 32, 64, 56, 88, 38, 70, 62, 94, },
+ { 96, 0, 120, 24, 102, 6, 126, 30, },
+ { 48, 80, 40, 72, 54, 86, 46, 78, },
+ { 112, 16, 104, 8, 118, 22, 110, 14, },
+};
+
+DECLARE_ALIGNED(8, const uint8_t, ff_sws_pb_64)[8] = {
+ 64, 64, 64, 64, 64, 64, 64, 64
};
-DECLARE_ALIGNED(8, const uint8_t, ff_sws_pb_64)[8] =
-{ 64, 64, 64, 64, 64, 64, 64, 64 };
-static av_always_inline void fillPlane(uint8_t* plane, int stride,
- int width, int height,
- int y, uint8_t val)
+static av_always_inline void fillPlane(uint8_t *plane, int stride, int width,
+ int height, int y, uint8_t val)
{
int i;
- uint8_t *ptr = plane + stride*y;
- for (i=0; i<height; i++) {
+ uint8_t *ptr = plane + stride * y;
+ for (i = 0; i < height; i++) {
memset(ptr, val, width);
ptr += stride;
}
}
-static void hScale16To19_c(SwsContext *c, int16_t *_dst, int dstW, const uint8_t *_src,
- const int16_t *filter,
+static void hScale16To19_c(SwsContext *c, int16_t *_dst, int dstW,
+ const uint8_t *_src, const int16_t *filter,
const int32_t *filterPos, int filterSize)
{
int i;
- int32_t *dst = (int32_t *) _dst;
+ int32_t *dst = (int32_t *) _dst;
const uint16_t *src = (const uint16_t *) _src;
- int bits = av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1;
- int sh = bits - 4;
+ int bits = av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1;
+ int sh = bits - 4;
for (i = 0; i < dstW; i++) {
int j;
int srcPos = filterPos[i];
- int val = 0;
+ int val = 0;
for (j = 0; j < filterSize; j++) {
val += src[srcPos + j] * filter[filterSize * i + j];
@@ -82,18 +84,18 @@ static void hScale16To19_c(SwsContext *c, int16_t *_dst, int dstW, const uint8_t
}
}
-static void hScale16To15_c(SwsContext *c, int16_t *dst, int dstW, const uint8_t *_src,
- const int16_t *filter,
+static void hScale16To15_c(SwsContext *c, int16_t *dst, int dstW,
+ const uint8_t *_src, const int16_t *filter,
const int32_t *filterPos, int filterSize)
{
int i;
const uint16_t *src = (const uint16_t *) _src;
- int sh = av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1;
+ int sh = av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1;
for (i = 0; i < dstW; i++) {
int j;
int srcPos = filterPos[i];
- int val = 0;
+ int val = 0;
for (j = 0; j < filterSize; j++) {
val += src[srcPos + j] * filter[filterSize * i + j];
@@ -104,72 +106,71 @@ static void hScale16To15_c(SwsContext *c, int16_t *dst, int dstW, const uint8_t
}
// bilinear / bicubic scaling
-static void hScale8To15_c(SwsContext *c, int16_t *dst, int dstW, const uint8_t *src,
- const int16_t *filter, const int32_t *filterPos,
- int filterSize)
+static void hScale8To15_c(SwsContext *c, int16_t *dst, int dstW,
+ const uint8_t *src, const int16_t *filter,
+ const int32_t *filterPos, int filterSize)
{
int i;
- for (i=0; i<dstW; i++) {
+ for (i = 0; i < dstW; i++) {
int j;
- int srcPos= filterPos[i];
- int val=0;
- for (j=0; j<filterSize; j++) {
- val += ((int)src[srcPos + j])*filter[filterSize*i + j];
+ int srcPos = filterPos[i];
+ int val = 0;
+ for (j = 0; j < filterSize; j++) {
+ val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
}
- //filter += hFilterSize;
- dst[i] = FFMIN(val>>7, (1<<15)-1); // the cubic equation does overflow ...
- //dst[i] = val>>7;
+ dst[i] = FFMIN(val >> 7, (1 << 15) - 1); // the cubic equation does overflow ...
}
}
-static void hScale8To19_c(SwsContext *c, int16_t *_dst, int dstW, const uint8_t *src,
- const int16_t *filter, const int32_t *filterPos,
- int filterSize)
+static void hScale8To19_c(SwsContext *c, int16_t *_dst, int dstW,
+ const uint8_t *src, const int16_t *filter,
+ const int32_t *filterPos, int filterSize)
{
int i;
int32_t *dst = (int32_t *) _dst;
- for (i=0; i<dstW; i++) {
+ for (i = 0; i < dstW; i++) {
int j;
- int srcPos= filterPos[i];
- int val=0;
- for (j=0; j<filterSize; j++) {
- val += ((int)src[srcPos + j])*filter[filterSize*i + j];
+ int srcPos = filterPos[i];
+ int val = 0;
+ for (j = 0; j < filterSize; j++) {
+ val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
}
- //filter += hFilterSize;
- dst[i] = FFMIN(val>>3, (1<<19)-1); // the cubic equation does overflow ...
- //dst[i] = val>>7;
+ dst[i] = FFMIN(val >> 3, (1 << 19) - 1); // the cubic equation does overflow ...
}
}
-//FIXME all pal and rgb srcFormats could do this convertion as well
-//FIXME all scalers more complex than bilinear could do half of this transform
+// FIXME all pal and rgb srcFormats could do this convertion as well
+// FIXME all scalers more complex than bilinear could do half of this transform
static void chrRangeToJpeg_c(int16_t *dstU, int16_t *dstV, int width)
{
int i;
for (i = 0; i < width; i++) {
- dstU[i] = (FFMIN(dstU[i],30775)*4663 - 9289992)>>12; //-264
- dstV[i] = (FFMIN(dstV[i],30775)*4663 - 9289992)>>12; //-264
+ dstU[i] = (FFMIN(dstU[i], 30775) * 4663 - 9289992) >> 12; // -264
+ dstV[i] = (FFMIN(dstV[i], 30775) * 4663 - 9289992) >> 12; // -264
}
}
+
static void chrRangeFromJpeg_c(int16_t *dstU, int16_t *dstV, int width)
{
int i;
for (i = 0; i < width; i++) {
- dstU[i] = (dstU[i]*1799 + 4081085)>>11; //1469
- dstV[i] = (dstV[i]*1799 + 4081085)>>11; //1469
+ dstU[i] = (dstU[i] * 1799 + 4081085) >> 11; // 1469
+ dstV[i] = (dstV[i] * 1799 + 4081085) >> 11; // 1469
}
}
+
static void lumRangeToJpeg_c(int16_t *dst, int width)
{
int i;
for (i = 0; i < width; i++)
- dst[i] = (FFMIN(dst[i],30189)*19077 - 39057361)>>14;
+ dst[i] = (FFMIN(dst[i], 30189) * 19077 - 39057361) >> 14;
}
+
static void lumRangeFromJpeg_c(int16_t *dst, int width)
{
int i;
for (i = 0; i < width; i++)
- dst[i] = (dst[i]*14071 + 33561947)>>14;
+ dst[i] = (dst[i] * 14071 + 33561947) >> 14;
}
static void chrRangeToJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width)
@@ -178,70 +179,77 @@ static void chrRangeToJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width)
int32_t *dstU = (int32_t *) _dstU;
int32_t *dstV = (int32_t *) _dstV;
for (i = 0; i < width; i++) {
- dstU[i] = (FFMIN(dstU[i],30775<<4)*4663 - (9289992<<4))>>12; //-264
- dstV[i] = (FFMIN(dstV[i],30775<<4)*4663 - (9289992<<4))>>12; //-264
+ dstU[i] = (FFMIN(dstU[i], 30775 << 4) * 4663 - (9289992 << 4)) >> 12; // -264
+ dstV[i] = (FFMIN(dstV[i], 30775 << 4) * 4663 - (9289992 << 4)) >> 12; // -264
}
}
+
static void chrRangeFromJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width)
{
int i;
int32_t *dstU = (int32_t *) _dstU;
int32_t *dstV = (int32_t *) _dstV;
for (i = 0; i < width; i++) {
- dstU[i] = (dstU[i]*1799 + (4081085<<4))>>11; //1469
- dstV[i] = (dstV[i]*1799 + (4081085<<4))>>11; //1469
+ dstU[i] = (dstU[i] * 1799 + (4081085 << 4)) >> 11; // 1469
+ dstV[i] = (dstV[i] * 1799 + (4081085 << 4)) >> 11; // 1469
}
}
+
static void lumRangeToJpeg16_c(int16_t *_dst, int width)
{
int i;
int32_t *dst = (int32_t *) _dst;
for (i = 0; i < width; i++)
- dst[i] = (FFMIN(dst[i],30189<<4)*4769 - (39057361<<2))>>12;
+ dst[i] = (FFMIN(dst[i], 30189 << 4) * 4769 - (39057361 << 2)) >> 12;
}
+
static void lumRangeFromJpeg16_c(int16_t *_dst, int width)
{
int i;
int32_t *dst = (int32_t *) _dst;
for (i = 0; i < width; i++)
- dst[i] = (dst[i]*14071 + (33561947<<4))>>14;
+ dst[i] = (dst[i] * 14071 + (33561947 << 4)) >> 14;
}
static void hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth,
const uint8_t *src, int srcW, int xInc)
{
int i;
- unsigned int xpos=0;
- for (i=0;i<dstWidth;i++) {
- register unsigned int xx=xpos>>16;
- register unsigned int xalpha=(xpos&0xFFFF)>>9;
- dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;
- xpos+=xInc;
+ unsigned int xpos = 0;
+ for (i = 0; i < dstWidth; i++) {
+ register unsigned int xx = xpos >> 16;
+ register unsigned int xalpha = (xpos & 0xFFFF) >> 9;
+ dst[i] = (src[xx] << 7) + (src[xx + 1] - src[xx]) * xalpha;
+ xpos += xInc;
}
}
// *** horizontal scale Y line to temp buffer
static av_always_inline void hyscale(SwsContext *c, int16_t *dst, int dstWidth,
- const uint8_t *src_in[4], int srcW, int xInc,
+ const uint8_t *src_in[4],
+ int srcW, int xInc,
const int16_t *hLumFilter,
- const int32_t *hLumFilterPos, int hLumFilterSize,
+ const int32_t *hLumFilterPos,
+ int hLumFilterSize,
uint8_t *formatConvBuffer,
uint32_t *pal, int isAlpha)
{
- void (*toYV12)(uint8_t *, const uint8_t *, int, uint32_t *) = isAlpha ? c->alpToYV12 : c->lumToYV12;
+ void (*toYV12)(uint8_t *, const uint8_t *, int, uint32_t *) =
+ isAlpha ? c->alpToYV12 : c->lumToYV12;
void (*convertRange)(int16_t *, int) = isAlpha ? NULL : c->lumConvertRange;
const uint8_t *src = src_in[isAlpha ? 3 : 0];
if (toYV12) {
toYV12(formatConvBuffer, src, srcW, pal);
- src= formatConvBuffer;
+ src = formatConvBuffer;
} else if (c->readLumPlanar && !isAlpha) {
c->readLumPlanar(formatConvBuffer, src_in, srcW);
src = formatConvBuffer;
}
if (!c->hyscale_fast) {
- c->hyScale(c, dst, dstWidth, src, hLumFilter, hLumFilterPos, hLumFilterSize);
+ c->hyScale(c, dst, dstWidth, src, hLumFilter,
+ hLumFilterPos, hLumFilterSize);
} else { // fast bilinear upscale / crap downscale
c->hyscale_fast(c, dst, dstWidth, src, srcW, xInc);
}
@@ -255,33 +263,38 @@ static void hcscale_fast_c(SwsContext *c, int16_t *dst1, int16_t *dst2,
const uint8_t *src2, int srcW, int xInc)
{
int i;
- unsigned int xpos=0;
- for (i=0;i<dstWidth;i++) {
- register unsigned int xx=xpos>>16;
- register unsigned int xalpha=(xpos&0xFFFF)>>9;
- dst1[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);
- dst2[i]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);
- xpos+=xInc;
+ unsigned int xpos = 0;
+ for (i = 0; i < dstWidth; i++) {
+ register unsigned int xx = xpos >> 16;
+ register unsigned int xalpha = (xpos & 0xFFFF) >> 9;
+ dst1[i] = (src1[xx] * (xalpha ^ 127) + src1[xx + 1] * xalpha);
+ dst2[i] = (src2[xx] * (xalpha ^ 127) + src2[xx + 1] * xalpha);
+ xpos += xInc;
}
}
-static av_always_inline void hcscale(SwsContext *c, int16_t *dst1, int16_t *dst2, int dstWidth,
+static av_always_inline void hcscale(SwsContext *c, int16_t *dst1,
+ int16_t *dst2, int dstWidth,
const uint8_t *src_in[4],
- int srcW, int xInc, const int16_t *hChrFilter,
- const int32_t *hChrFilterPos, int hChrFilterSize,
+ int srcW, int xInc,
+ const int16_t *hChrFilter,
+ const int32_t *hChrFilterPos,
+ int hChrFilterSize,
uint8_t *formatConvBuffer, uint32_t *pal)
{
const uint8_t *src1 = src_in[1], *src2 = src_in[2];
if (c->chrToYV12) {
- uint8_t *buf2 = formatConvBuffer + FFALIGN(srcW * FFALIGN(c->srcBpc, 8) >> 3, 16);
+ uint8_t *buf2 = formatConvBuffer +
+ FFALIGN(srcW * FFALIGN(c->srcBpc, 8) >> 3, 16);
c->chrToYV12(formatConvBuffer, buf2, src1, src2, srcW, pal);
- src1= formatConvBuffer;
- src2= buf2;
+ src1 = formatConvBuffer;
+ src2 = buf2;
} else if (c->readChrPlanar) {
- uint8_t *buf2 = formatConvBuffer + FFALIGN(srcW * FFALIGN(c->srcBpc, 8) >> 3, 16);
+ uint8_t *buf2 = formatConvBuffer +
+ FFALIGN(srcW * FFALIGN(c->srcBpc, 8) >> 3, 16);
c->readChrPlanar(formatConvBuffer, buf2, src_in, srcW);
- src1= formatConvBuffer;
- src2= buf2;
+ src1 = formatConvBuffer;
+ src2 = buf2;
}
if (!c->hcscale_fast) {
@@ -296,120 +309,130 @@ static av_always_inline void hcscale(SwsContext *c, int16_t *dst1, int16_t *dst2
}
#define DEBUG_SWSCALE_BUFFERS 0
-#define DEBUG_BUFFERS(...) if (DEBUG_SWSCALE_BUFFERS) av_log(c, AV_LOG_DEBUG, __VA_ARGS__)
+#define DEBUG_BUFFERS(...) \
+ if (DEBUG_SWSCALE_BUFFERS) \
+ av_log(c, AV_LOG_DEBUG, __VA_ARGS__)
-static int swScale(SwsContext *c, const uint8_t* src[],
+static int swScale(SwsContext *c, const uint8_t *src[],
int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dst[], int dstStride[])
+ int srcSliceH, uint8_t *dst[], int dstStride[])
{
- /* load a few things into local vars to make the code more readable? and faster */
- const int srcW= c->srcW;
- const int dstW= c->dstW;
- const int dstH= c->dstH;
- const int chrDstW= c->chrDstW;
- const int chrSrcW= c->chrSrcW;
- const int lumXInc= c->lumXInc;
- const int chrXInc= c->chrXInc;
- const enum PixelFormat dstFormat= c->dstFormat;
- const int flags= c->flags;
- int32_t *vLumFilterPos= c->vLumFilterPos;
- int32_t *vChrFilterPos= c->vChrFilterPos;
- int32_t *hLumFilterPos= c->hLumFilterPos;
- int32_t *hChrFilterPos= c->hChrFilterPos;
- int16_t *vLumFilter= c->vLumFilter;
- int16_t *vChrFilter= c->vChrFilter;
- int16_t *hLumFilter= c->hLumFilter;
- int16_t *hChrFilter= c->hChrFilter;
- int32_t *lumMmxFilter= c->lumMmxFilter;
- int32_t *chrMmxFilter= c->chrMmxFilter;
- const int vLumFilterSize= c->vLumFilterSize;
- const int vChrFilterSize= c->vChrFilterSize;
- const int hLumFilterSize= c->hLumFilterSize;
- const int hChrFilterSize= c->hChrFilterSize;
- int16_t **lumPixBuf= c->lumPixBuf;
- int16_t **chrUPixBuf= c->chrUPixBuf;
- int16_t **chrVPixBuf= c->chrVPixBuf;
- int16_t **alpPixBuf= c->alpPixBuf;
- const int vLumBufSize= c->vLumBufSize;
- const int vChrBufSize= c->vChrBufSize;
- uint8_t *formatConvBuffer= c->formatConvBuffer;
- const int chrSrcSliceY= srcSliceY >> c->chrSrcVSubSample;
- const int chrSrcSliceH= -((-srcSliceH) >> c->chrSrcVSubSample);
+ /* load a few things into local vars to make the code more readable?
+ * and faster */
+ const int srcW = c->srcW;
+ const int dstW = c->dstW;
+ const int dstH = c->dstH;
+ const int chrDstW = c->chrDstW;
+ const int chrSrcW = c->chrSrcW;
+ const int lumXInc = c->lumXInc;
+ const int chrXInc = c->chrXInc;
+ const enum PixelFormat dstFormat = c->dstFormat;
+ const int flags = c->flags;
+ int32_t *vLumFilterPos = c->vLumFilterPos;
+ int32_t *vChrFilterPos = c->vChrFilterPos;
+ int32_t *hLumFilterPos = c->hLumFilterPos;
+ int32_t *hChrFilterPos = c->hChrFilterPos;
+ int16_t *vLumFilter = c->vLumFilter;
+ int16_t *vChrFilter = c->vChrFilter;
+ int16_t *hLumFilter = c->hLumFilter;
+ int16_t *hChrFilter = c->hChrFilter;
+ int32_t *lumMmxFilter = c->lumMmxFilter;
+ int32_t *chrMmxFilter = c->chrMmxFilter;
+ const int vLumFilterSize = c->vLumFilterSize;
+ const int vChrFilterSize = c->vChrFilterSize;
+ const int hLumFilterSize = c->hLumFilterSize;
+ const int hChrFilterSize = c->hChrFilterSize;
+ int16_t **lumPixBuf = c->lumPixBuf;
+ int16_t **chrUPixBuf = c->chrUPixBuf;
+ int16_t **chrVPixBuf = c->chrVPixBuf;
+ int16_t **alpPixBuf = c->alpPixBuf;
+ const int vLumBufSize = c->vLumBufSize;
+ const int vChrBufSize = c->vChrBufSize;
+ uint8_t *formatConvBuffer = c->formatConvBuffer;
+ uint32_t *pal = c->pal_yuv;
+ yuv2planar1_fn yuv2plane1 = c->yuv2plane1;
+ yuv2planarX_fn yuv2planeX = c->yuv2planeX;
+ yuv2interleavedX_fn yuv2nv12cX = c->yuv2nv12cX;
+ yuv2packed1_fn yuv2packed1 = c->yuv2packed1;
+ yuv2packed2_fn yuv2packed2 = c->yuv2packed2;
+ yuv2packedX_fn yuv2packedX = c->yuv2packedX;
+ const int chrSrcSliceY = srcSliceY >> c->chrSrcVSubSample;
+ const int chrSrcSliceH = -((-srcSliceH) >> c->chrSrcVSubSample);
+ int should_dither = is9_OR_10BPS(c->srcFormat) ||
+ is16BPS(c->srcFormat);
int lastDstY;
- uint32_t *pal=c->pal_yuv;
- yuv2planar1_fn yuv2plane1 = c->yuv2plane1;
- yuv2planarX_fn yuv2planeX = c->yuv2planeX;
- yuv2interleavedX_fn yuv2nv12cX = c->yuv2nv12cX;
- yuv2packed1_fn yuv2packed1 = c->yuv2packed1;
- yuv2packed2_fn yuv2packed2 = c->yuv2packed2;
- yuv2packedX_fn yuv2packedX = c->yuv2packedX;
- int should_dither = is9_OR_10BPS(c->srcFormat) || is16BPS(c->srcFormat);
/* vars which will change and which we need to store back in the context */
- int dstY= c->dstY;
- int lumBufIndex= c->lumBufIndex;
- int chrBufIndex= c->chrBufIndex;
- int lastInLumBuf= c->lastInLumBuf;
- int lastInChrBuf= c->lastInChrBuf;
+ int dstY = c->dstY;
+ int lumBufIndex = c->lumBufIndex;
+ int chrBufIndex = c->chrBufIndex;
+ int lastInLumBuf = c->lastInLumBuf;
+ int lastInChrBuf = c->lastInChrBuf;
if (isPacked(c->srcFormat)) {
- src[0]=
- src[1]=
- src[2]=
- src[3]= src[0];
- srcStride[0]=
- srcStride[1]=
- srcStride[2]=
- srcStride[3]= srcStride[0];
+ src[0] =
+ src[1] =
+ src[2] =
+ src[3] = src[0];
+ srcStride[0] =
+ srcStride[1] =
+ srcStride[2] =
+ srcStride[3] = srcStride[0];
}
- srcStride[1]<<= c->vChrDrop;
- srcStride[2]<<= c->vChrDrop;
+ srcStride[1] <<= c->vChrDrop;
+ srcStride[2] <<= c->vChrDrop;
DEBUG_BUFFERS("swScale() %p[%d] %p[%d] %p[%d] %p[%d] -> %p[%d] %p[%d] %p[%d] %p[%d]\n",
- src[0], srcStride[0], src[1], srcStride[1], src[2], srcStride[2], src[3], srcStride[3],
- dst[0], dstStride[0], dst[1], dstStride[1], dst[2], dstStride[2], dst[3], dstStride[3]);
+ src[0], srcStride[0], src[1], srcStride[1],
+ src[2], srcStride[2], src[3], srcStride[3],
+ dst[0], dstStride[0], dst[1], dstStride[1],
+ dst[2], dstStride[2], dst[3], dstStride[3]);
DEBUG_BUFFERS("srcSliceY: %d srcSliceH: %d dstY: %d dstH: %d\n",
- srcSliceY, srcSliceH, dstY, dstH);
+ srcSliceY, srcSliceH, dstY, dstH);
DEBUG_BUFFERS("vLumFilterSize: %d vLumBufSize: %d vChrFilterSize: %d vChrBufSize: %d\n",
- vLumFilterSize, vLumBufSize, vChrFilterSize, vChrBufSize);
+ vLumFilterSize, vLumBufSize, vChrFilterSize, vChrBufSize);
- if (dstStride[0]%8 !=0 || dstStride[1]%8 !=0 || dstStride[2]%8 !=0 || dstStride[3]%8 != 0) {
- static int warnedAlready=0; //FIXME move this into the context perhaps
+ if (dstStride[0] % 8 != 0 || dstStride[1] % 8 != 0 ||
+ dstStride[2] % 8 != 0 || dstStride[3] % 8 != 0) {
+ static int warnedAlready = 0; // FIXME maybe move this into the context
if (flags & SWS_PRINT_INFO && !warnedAlready) {
- av_log(c, AV_LOG_WARNING, "Warning: dstStride is not aligned!\n"
+ av_log(c, AV_LOG_WARNING,
+ "Warning: dstStride is not aligned!\n"
" ->cannot do aligned memory accesses anymore\n");
- warnedAlready=1;
+ warnedAlready = 1;
}
}
/* Note the user might start scaling the picture in the middle so this
- will not get executed. This is not really intended but works
- currently, so people might do it. */
- if (srcSliceY ==0) {
- lumBufIndex=-1;
- chrBufIndex=-1;
- dstY=0;
- lastInLumBuf= -1;
- lastInChrBuf= -1;
+ * will not get executed. This is not really intended but works
+ * currently, so people might do it. */
+ if (srcSliceY == 0) {
+ lumBufIndex = -1;
+ chrBufIndex = -1;
+ dstY = 0;
+ lastInLumBuf = -1;
+ lastInChrBuf = -1;
}
if (!should_dither) {
c->chrDither8 = c->lumDither8 = ff_sws_pb_64;
}
- lastDstY= dstY;
+ lastDstY = dstY;
- for (;dstY < dstH; dstY++) {
- const int chrDstY= dstY>>c->chrDstVSubSample;
- uint8_t *dest[4] = {
+ for (; dstY < dstH; dstY++) {
+ const int chrDstY = dstY >> c->chrDstVSubSample;
+ uint8_t *dest[4] = {
dst[0] + dstStride[0] * dstY,
dst[1] + dstStride[1] * chrDstY,
dst[2] + dstStride[2] * chrDstY,
(CONFIG_SWSCALE_ALPHA && alpPixBuf) ? dst[3] + dstStride[3] * dstY : NULL,
};
- const int firstLumSrcY= FFMAX(1 - vLumFilterSize, vLumFilterPos[dstY]); //First line needed as input
- const int firstLumSrcY2= FFMAX(1 - vLumFilterSize, vLumFilterPos[FFMIN(dstY | ((1<<c->chrDstVSubSample) - 1), dstH-1)]);
- const int firstChrSrcY= FFMAX(1 - vChrFilterSize, vChrFilterPos[chrDstY]); //First line needed as input
+ // First line needed as input
+ const int firstLumSrcY = FFMAX(1 - vLumFilterSize, vLumFilterPos[dstY]);
+ const int firstLumSrcY2 = FFMAX(1 - vLumFilterSize, vLumFilterPos[FFMIN(dstY | ((1 << c->chrDstVSubSample) - 1), dstH - 1)]);
+ // First line needed as input
+ const int firstChrSrcY = FFMAX(1 - vChrFilterSize, vChrFilterPos[chrDstY]);
// Last line needed as input
int lastLumSrcY = FFMIN(c->srcH, firstLumSrcY + vLumFilterSize) - 1;
@@ -417,30 +440,33 @@ static int swScale(SwsContext *c, const uint8_t* src[],
int lastChrSrcY = FFMIN(c->chrSrcH, firstChrSrcY + vChrFilterSize) - 1;
int enough_lines;
- //handle holes (FAST_BILINEAR & weird filters)
- if (firstLumSrcY > lastInLumBuf) lastInLumBuf= firstLumSrcY-1;
- if (firstChrSrcY > lastInChrBuf) lastInChrBuf= firstChrSrcY-1;
+ // handle holes (FAST_BILINEAR & weird filters)
+ if (firstLumSrcY > lastInLumBuf)
+ lastInLumBuf = firstLumSrcY - 1;
+ if (firstChrSrcY > lastInChrBuf)
+ lastInChrBuf = firstChrSrcY - 1;
assert(firstLumSrcY >= lastInLumBuf - vLumBufSize + 1);
assert(firstChrSrcY >= lastInChrBuf - vChrBufSize + 1);
DEBUG_BUFFERS("dstY: %d\n", dstY);
DEBUG_BUFFERS("\tfirstLumSrcY: %d lastLumSrcY: %d lastInLumBuf: %d\n",
- firstLumSrcY, lastLumSrcY, lastInLumBuf);
+ firstLumSrcY, lastLumSrcY, lastInLumBuf);
DEBUG_BUFFERS("\tfirstChrSrcY: %d lastChrSrcY: %d lastInChrBuf: %d\n",
- firstChrSrcY, lastChrSrcY, lastInChrBuf);
+ firstChrSrcY, lastChrSrcY, lastInChrBuf);
// Do we have enough lines in this slice to output the dstY line
- enough_lines = lastLumSrcY2 < srcSliceY + srcSliceH && lastChrSrcY < -((-srcSliceY - srcSliceH)>>c->chrSrcVSubSample);
+ enough_lines = lastLumSrcY2 < srcSliceY + srcSliceH &&
+ lastChrSrcY < -((-srcSliceY - srcSliceH) >> c->chrSrcVSubSample);
if (!enough_lines) {
lastLumSrcY = srcSliceY + srcSliceH - 1;
lastChrSrcY = chrSrcSliceY + chrSrcSliceH - 1;
DEBUG_BUFFERS("buffering slice: lastLumSrcY %d lastChrSrcY %d\n",
- lastLumSrcY, lastChrSrcY);
+ lastLumSrcY, lastChrSrcY);
}
- //Do horizontal scaling
- while(lastInLumBuf < lastLumSrcY) {
+ // Do horizontal scaling
+ while (lastInLumBuf < lastLumSrcY) {
const uint8_t *src1[4] = {
src[0] + (lastInLumBuf + 1 - srcSliceY) * srcStride[0],
src[1] + (lastInLumBuf + 1 - srcSliceY) * srcStride[1],
@@ -448,23 +474,21 @@ static int swScale(SwsContext *c, const uint8_t* src[],
src[3] + (lastInLumBuf + 1 - srcSliceY) * srcStride[3],
};
lumBufIndex++;
- assert(lumBufIndex < 2*vLumBufSize);
+ assert(lumBufIndex < 2 * vLumBufSize);
assert(lastInLumBuf + 1 - srcSliceY < srcSliceH);
assert(lastInLumBuf + 1 - srcSliceY >= 0);
- hyscale(c, lumPixBuf[ lumBufIndex ], dstW, src1, srcW, lumXInc,
+ hyscale(c, lumPixBuf[lumBufIndex], dstW, src1, srcW, lumXInc,
hLumFilter, hLumFilterPos, hLumFilterSize,
- formatConvBuffer,
- pal, 0);
+ formatConvBuffer, pal, 0);
if (CONFIG_SWSCALE_ALPHA && alpPixBuf)
- hyscale(c, alpPixBuf[ lumBufIndex ], dstW, src1, srcW,
+ hyscale(c, alpPixBuf[lumBufIndex], dstW, src1, srcW,
lumXInc, hLumFilter, hLumFilterPos, hLumFilterSize,
- formatConvBuffer,
- pal, 1);
+ formatConvBuffer, pal, 1);
lastInLumBuf++;
DEBUG_BUFFERS("\t\tlumBufIndex %d: lastInLumBuf: %d\n",
- lumBufIndex, lastInLumBuf);
+ lumBufIndex, lastInLumBuf);
}
- while(lastInChrBuf < lastChrSrcY) {
+ while (lastInChrBuf < lastChrSrcY) {
const uint8_t *src1[4] = {
src[0] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[0],
src[1] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[1],
@@ -472,80 +496,90 @@ static int swScale(SwsContext *c, const uint8_t* src[],
src[3] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[3],
};
chrBufIndex++;
- assert(chrBufIndex < 2*vChrBufSize);
+ assert(chrBufIndex < 2 * vChrBufSize);
assert(lastInChrBuf + 1 - chrSrcSliceY < (chrSrcSliceH));
assert(lastInChrBuf + 1 - chrSrcSliceY >= 0);
- //FIXME replace parameters through context struct (some at least)
+ // FIXME replace parameters through context struct (some at least)
if (c->needs_hcscale)
hcscale(c, chrUPixBuf[chrBufIndex], chrVPixBuf[chrBufIndex],
- chrDstW, src1, chrSrcW, chrXInc,
- hChrFilter, hChrFilterPos, hChrFilterSize,
- formatConvBuffer, pal);
+ chrDstW, src1, chrSrcW, chrXInc,
+ hChrFilter, hChrFilterPos, hChrFilterSize,
+ formatConvBuffer, pal);
lastInChrBuf++;
DEBUG_BUFFERS("\t\tchrBufIndex %d: lastInChrBuf: %d\n",
- chrBufIndex, lastInChrBuf);
+ chrBufIndex, lastInChrBuf);
}
- //wrap buf index around to stay inside the ring buffer
- if (lumBufIndex >= vLumBufSize) lumBufIndex-= vLumBufSize;
- if (chrBufIndex >= vChrBufSize) chrBufIndex-= vChrBufSize;
+ // wrap buf index around to stay inside the ring buffer
+ if (lumBufIndex >= vLumBufSize)
+ lumBufIndex -= vLumBufSize;
+ if (chrBufIndex >= vChrBufSize)
+ chrBufIndex -= vChrBufSize;
if (!enough_lines)
- break; //we can't output a dstY line so let's try with the next slice
+ break; // we can't output a dstY line so let's try with the next slice
#if HAVE_MMX
- updateMMXDitherTables(c, dstY, lumBufIndex, chrBufIndex, lastInLumBuf, lastInChrBuf);
+ updateMMXDitherTables(c, dstY, lumBufIndex, chrBufIndex,
+ lastInLumBuf, lastInChrBuf);
#endif
if (should_dither) {
c->chrDither8 = dither_8x8_128[chrDstY & 7];
- c->lumDither8 = dither_8x8_128[dstY & 7];
+ c->lumDither8 = dither_8x8_128[dstY & 7];
}
- if (dstY >= dstH-2) {
- // hmm looks like we can't use MMX here without overwriting this array's tail
- ff_sws_init_output_funcs(c, &yuv2plane1, &yuv2planeX, &yuv2nv12cX,
+ if (dstY >= dstH - 2) {
+ /* hmm looks like we can't use MMX here without overwriting
+ * this array's tail */
+ ff_sws_init_output_funcs(c, &yuv2plane1, &yuv2planeX, &yuv2nv12cX,
&yuv2packed1, &yuv2packed2, &yuv2packedX);
}
{
- const int16_t **lumSrcPtr= (const int16_t **) lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
- const int16_t **chrUSrcPtr= (const int16_t **) chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
- const int16_t **chrVSrcPtr= (const int16_t **) chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
- const int16_t **alpSrcPtr= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? (const int16_t **) alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;
+ const int16_t **lumSrcPtr = (const int16_t **)lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
+ const int16_t **chrUSrcPtr = (const int16_t **)chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
+ const int16_t **chrVSrcPtr = (const int16_t **)chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
+ const int16_t **alpSrcPtr = (CONFIG_SWSCALE_ALPHA && alpPixBuf) ?
+ (const int16_t **)alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;
if (firstLumSrcY < 0 || firstLumSrcY + vLumFilterSize > c->srcH) {
- const int16_t **tmpY = (const int16_t **) lumPixBuf + 2 * vLumBufSize;
- int neg = -firstLumSrcY, i, end = FFMIN(c->srcH - firstLumSrcY, vLumFilterSize);
- for (i = 0; i < neg; i++)
+ const int16_t **tmpY = (const int16_t **)lumPixBuf +
+ 2 * vLumBufSize;
+ int neg = -firstLumSrcY, i;
+ int end = FFMIN(c->srcH - firstLumSrcY, vLumFilterSize);
+ for (i = 0; i < neg; i++)
tmpY[i] = lumSrcPtr[neg];
- for ( ; i < end; i++)
+ for (; i < end; i++)
tmpY[i] = lumSrcPtr[i];
- for ( ; i < vLumFilterSize; i++)
- tmpY[i] = tmpY[i-1];
+ for (; i < vLumFilterSize; i++)
+ tmpY[i] = tmpY[i - 1];
lumSrcPtr = tmpY;
if (alpSrcPtr) {
- const int16_t **tmpA = (const int16_t **) alpPixBuf + 2 * vLumBufSize;
- for (i = 0; i < neg; i++)
+ const int16_t **tmpA = (const int16_t **)alpPixBuf +
+ 2 * vLumBufSize;
+ for (i = 0; i < neg; i++)
tmpA[i] = alpSrcPtr[neg];
- for ( ; i < end; i++)
+ for (; i < end; i++)
tmpA[i] = alpSrcPtr[i];
- for ( ; i < vLumFilterSize; i++)
+ for (; i < vLumFilterSize; i++)
tmpA[i] = tmpA[i - 1];
alpSrcPtr = tmpA;
}
}
- if (firstChrSrcY < 0 || firstChrSrcY + vChrFilterSize > c->chrSrcH) {
- const int16_t **tmpU = (const int16_t **) chrUPixBuf + 2 * vChrBufSize,
- **tmpV = (const int16_t **) chrVPixBuf + 2 * vChrBufSize;
- int neg = -firstChrSrcY, i, end = FFMIN(c->chrSrcH - firstChrSrcY, vChrFilterSize);
- for (i = 0; i < neg; i++) {
+ if (firstChrSrcY < 0 ||
+ firstChrSrcY + vChrFilterSize > c->chrSrcH) {
+ const int16_t **tmpU = (const int16_t **)chrUPixBuf + 2 * vChrBufSize,
+ **tmpV = (const int16_t **)chrVPixBuf + 2 * vChrBufSize;
+ int neg = -firstChrSrcY, i;
+ int end = FFMIN(c->chrSrcH - firstChrSrcY, vChrFilterSize);
+ for (i = 0; i < neg; i++) {
tmpU[i] = chrUSrcPtr[neg];
tmpV[i] = chrVSrcPtr[neg];
}
- for ( ; i < end; i++) {
+ for (; i < end; i++) {
tmpU[i] = chrUSrcPtr[i];
tmpV[i] = chrVSrcPtr[i];
}
- for ( ; i < vChrFilterSize; i++) {
+ for (; i < vChrFilterSize; i++) {
tmpU[i] = tmpU[i - 1];
tmpV[i] = tmpV[i - 1];
}
@@ -553,57 +587,67 @@ static int swScale(SwsContext *c, const uint8_t* src[],
chrVSrcPtr = tmpV;
}
- if (isPlanarYUV(dstFormat) || (isGray(dstFormat) && !isALPHA(dstFormat))) { //YV12 like
- const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
+ if (isPlanarYUV(dstFormat) ||
+ (isGray(dstFormat) && !isALPHA(dstFormat))) { // YV12 like
+ const int chrSkipMask = (1 << c->chrDstVSubSample) - 1;
if (vLumFilterSize == 1) {
yuv2plane1(lumSrcPtr[0], dest[0], dstW, c->lumDither8, 0);
} else {
- yuv2planeX(vLumFilter + dstY * vLumFilterSize, vLumFilterSize,
- lumSrcPtr, dest[0], dstW, c->lumDither8, 0);
+ yuv2planeX(vLumFilter + dstY * vLumFilterSize,
+ vLumFilterSize, lumSrcPtr, dest[0],
+ dstW, c->lumDither8, 0);
}
- if (!((dstY&chrSkipMask) || isGray(dstFormat))) {
+ if (!((dstY & chrSkipMask) || isGray(dstFormat))) {
if (yuv2nv12cX) {
- yuv2nv12cX(c, vChrFilter + chrDstY * vChrFilterSize, vChrFilterSize, chrUSrcPtr, chrVSrcPtr, dest[1], chrDstW);
+ yuv2nv12cX(c, vChrFilter + chrDstY * vChrFilterSize,
+ vChrFilterSize, chrUSrcPtr, chrVSrcPtr,
+ dest[1], chrDstW);
} else if (vChrFilterSize == 1) {
yuv2plane1(chrUSrcPtr[0], dest[1], chrDstW, c->chrDither8, 0);
yuv2plane1(chrVSrcPtr[0], dest[2], chrDstW, c->chrDither8, 3);
} else {
- yuv2planeX(vChrFilter + chrDstY * vChrFilterSize, vChrFilterSize,
- chrUSrcPtr, dest[1], chrDstW, c->chrDither8, 0);
- yuv2planeX(vChrFilter + chrDstY * vChrFilterSize, vChrFilterSize,
- chrVSrcPtr, dest[2], chrDstW, c->chrDither8, 3);
+ yuv2planeX(vChrFilter + chrDstY * vChrFilterSize,
+ vChrFilterSize, chrUSrcPtr, dest[1],
+ chrDstW, c->chrDither8, 0);
+ yuv2planeX(vChrFilter + chrDstY * vChrFilterSize,
+ vChrFilterSize, chrVSrcPtr, dest[2],
+ chrDstW, c->chrDither8, 3);
}
}
- if (CONFIG_SWSCALE_ALPHA && alpPixBuf){
+ if (CONFIG_SWSCALE_ALPHA && alpPixBuf) {
if (vLumFilterSize == 1) {
- yuv2plane1(alpSrcPtr[0], dest[3], dstW, c->lumDither8, 0);
+ yuv2plane1(alpSrcPtr[0], dest[3], dstW,
+ c->lumDither8, 0);
} else {
- yuv2planeX(vLumFilter + dstY * vLumFilterSize, vLumFilterSize,
- alpSrcPtr, dest[3], dstW, c->lumDither8, 0);
+ yuv2planeX(vLumFilter + dstY * vLumFilterSize,
+ vLumFilterSize, alpSrcPtr, dest[3],
+ dstW, c->lumDither8, 0);
}
}
} else {
- assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2);
- assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize*2);
- if (c->yuv2packed1 && vLumFilterSize == 1 && vChrFilterSize <= 2) { //unscaled RGB
+ assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize * 2);
+ assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize * 2);
+ if (c->yuv2packed1 && vLumFilterSize == 1 &&
+ vChrFilterSize <= 2) { // unscaled RGB
int chrAlpha = vChrFilterSize == 1 ? 0 : vChrFilter[2 * dstY + 1];
yuv2packed1(c, *lumSrcPtr, chrUSrcPtr, chrVSrcPtr,
alpPixBuf ? *alpSrcPtr : NULL,
dest[0], dstW, chrAlpha, dstY);
- } else if (c->yuv2packed2 && vLumFilterSize == 2 && vChrFilterSize == 2) { //bilinear upscale RGB
+ } else if (c->yuv2packed2 && vLumFilterSize == 2 &&
+ vChrFilterSize == 2) { // bilinear upscale RGB
int lumAlpha = vLumFilter[2 * dstY + 1];
int chrAlpha = vChrFilter[2 * dstY + 1];
lumMmxFilter[2] =
- lumMmxFilter[3] = vLumFilter[2 * dstY ] * 0x10001;
+ lumMmxFilter[3] = vLumFilter[2 * dstY] * 0x10001;
chrMmxFilter[2] =
chrMmxFilter[3] = vChrFilter[2 * chrDstY] * 0x10001;
yuv2packed2(c, lumSrcPtr, chrUSrcPtr, chrVSrcPtr,
alpPixBuf ? alpSrcPtr : NULL,
dest[0], dstW, lumAlpha, chrAlpha, dstY);
- } else { //general RGB
+ } else { // general RGB
yuv2packedX(c, vLumFilter + dstY * vLumFilterSize,
lumSrcPtr, vLumFilterSize,
vChrFilter + dstY * vChrFilterSize,
@@ -615,20 +659,20 @@ static int swScale(SwsContext *c, const uint8_t* src[],
}
if (isPlanar(dstFormat) && isALPHA(dstFormat) && !alpPixBuf)
- fillPlane(dst[3], dstStride[3], dstW, dstY-lastDstY, lastDstY, 255);
+ fillPlane(dst[3], dstStride[3], dstW, dstY - lastDstY, lastDstY, 255);
#if HAVE_MMX2
if (av_get_cpu_flags() & AV_CPU_FLAG_MMX2)
- __asm__ volatile("sfence":::"memory");
+ __asm__ volatile ("sfence" ::: "memory");
#endif
emms_c();
/* store changed local vars back in the context */
- c->dstY= dstY;
- c->lumBufIndex= lumBufIndex;
- c->chrBufIndex= chrBufIndex;
- c->lastInLumBuf= lastInLumBuf;
- c->lastInChrBuf= lastInChrBuf;
+ c->dstY = dstY;
+ c->lumBufIndex = lumBufIndex;
+ c->chrBufIndex = chrBufIndex;
+ c->lastInLumBuf = lastInLumBuf;
+ c->lastInChrBuf = lastInChrBuf;
return dstY - lastDstY;
}
@@ -654,7 +698,8 @@ static av_cold void sws_init_swScale_c(SwsContext *c)
c->hyScale = c->hcScale = hScale8To19_c;
}
} else {
- c->hyScale = c->hcScale = c->dstBpc > 10 ? hScale16To19_c : hScale16To15_c;
+ c->hyScale = c->hcScale = c->dstBpc > 10 ? hScale16To19_c
+ : hScale16To15_c;
}
if (c->srcRange != c->dstRange && !isAnyRGB(c->dstFormat)) {
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index aa56aa70db..2a7d2dbd1d 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -614,8 +614,8 @@ const char *sws_format_name(enum PixelFormat format);
(isRGBinInt(x) || \
isBGRinInt(x))
-#define isALPHA(x) \
- (av_pix_fmt_descriptors[x].nb_components == 2 || \
+#define isALPHA(x) \
+ (av_pix_fmt_descriptors[x].nb_components == 2 || \
av_pix_fmt_descriptors[x].nb_components == 4)
#define isPacked(x) \
@@ -623,7 +623,7 @@ const char *sws_format_name(enum PixelFormat format);
!(av_pix_fmt_descriptors[x].flags & PIX_FMT_PLANAR)) || \
(x) == PIX_FMT_PAL8)
-#define isPlanar(x) \
+#define isPlanar(x) \
(av_pix_fmt_descriptors[x].nb_components >= 2 && \
(av_pix_fmt_descriptors[x].flags & PIX_FMT_PLANAR))
@@ -635,7 +635,7 @@ const char *sws_format_name(enum PixelFormat format);
((av_pix_fmt_descriptors[x].flags & \
(PIX_FMT_PLANAR | PIX_FMT_RGB)) == (PIX_FMT_PLANAR | PIX_FMT_RGB))
-#define usePal(x) ((av_pix_fmt_descriptors[x].flags & PIX_FMT_PAL) || \
+#define usePal(x) ((av_pix_fmt_descriptors[x].flags & PIX_FMT_PAL) || \
(av_pix_fmt_descriptors[x].flags & PIX_FMT_PSEUDOPAL) || \
(x) == PIX_FMT_Y400A)
diff --git a/libswscale/utils.c b/libswscale/utils.c
index 51dd331117..d8fee588a0 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -18,13 +18,14 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#define _SVID_SOURCE //needed for MAP_ANONYMOUS
+#include "config.h"
+
+#define _SVID_SOURCE // needed for MAP_ANONYMOUS
+#include <assert.h>
#include <inttypes.h>
-#include <string.h>
#include <math.h>
#include <stdio.h>
-#include "config.h"
-#include <assert.h>
+#include <string.h>
#if HAVE_SYS_MMAN_H
#include <sys/mman.h>
#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
@@ -35,17 +36,18 @@
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
-#include "swscale.h"
-#include "swscale_internal.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/cpu.h"
+#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
+#include "libavutil/x86_cpu.h"
+#include "rgb2rgb.h"
+#include "swscale.h"
+#include "swscale_internal.h"
unsigned swscale_version(void)
{
@@ -63,101 +65,101 @@ const char *swscale_license(void)
return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1;
}
-#define RET 0xC3 //near return opcode for x86
+#define RET 0xC3 // near return opcode for x86
typedef struct FormatEntry {
int is_supported_in, is_supported_out;
} FormatEntry;
static const 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] = { 1 , 1 },
- [PIX_FMT_RGB444BE] = { 1 , 1 },
- [PIX_FMT_BGR444LE] = { 1 , 1 },
- [PIX_FMT_BGR444BE] = { 1 , 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 },
+ [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] = { 1, 1 },
+ [PIX_FMT_RGB444BE] = { 1, 1 },
+ [PIX_FMT_BGR444LE] = { 1, 1 },
+ [PIX_FMT_BGR444BE] = { 1, 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 (unsigned)pix_fmt < PIX_FMT_NB ?
- format_entries[pix_fmt].is_supported_in : 0;
+ format_entries[pix_fmt].is_supported_in : 0;
}
int sws_isSupportedOutput(enum PixelFormat pix_fmt)
{
return (unsigned)pix_fmt < PIX_FMT_NB ?
- format_entries[pix_fmt].is_supported_out : 0;
+ format_entries[pix_fmt].is_supported_out : 0;
}
extern const int32_t ff_yuv2rgb_coeffs[8][4];
@@ -170,261 +172,302 @@ const char *sws_format_name(enum PixelFormat format)
return "Unknown format";
}
-static double getSplineCoeff(double a, double b, double c, double d, double dist)
+static double getSplineCoeff(double a, double b, double c, double d,
+ double 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,
- c + 3.0*d,
- -b- 3.0*c - 6.0*d,
- dist-1.0);
+ if (dist <= 1.0)
+ return ((d * dist + c) * dist + b) * dist + a;
+ else
+ return getSplineCoeff(0.0,
+ b + 2.0 * c + 3.0 * d,
+ c + 3.0 * d,
+ -b - 3.0 * c - 6.0 * d,
+ dist - 1.0);
}
-static int initFilter(int16_t **outFilter, int32_t **filterPos, int *outFilterSize, int xInc,
- int srcW, int dstW, int filterAlign, int one, int flags, int cpu_flags,
- SwsVector *srcFilter, SwsVector *dstFilter, double param[2], int is_horizontal)
+static int initFilter(int16_t **outFilter, int32_t **filterPos,
+ int *outFilterSize, int xInc, int srcW, int dstW,
+ int filterAlign, int one, int flags, int cpu_flags,
+ SwsVector *srcFilter, SwsVector *dstFilter,
+ double param[2], int is_horizontal)
{
int i;
int filterSize;
int filter2Size;
int minFilterSize;
- int64_t *filter=NULL;
- int64_t *filter2=NULL;
- const int64_t fone= 1LL<<54;
- int ret= -1;
+ int64_t *filter = NULL;
+ int64_t *filter2 = NULL;
+ const int64_t fone = 1LL << 54;
+ int ret = -1;
- emms_c(); //FIXME this should not be required but it IS (even for non-MMX versions)
+ emms_c(); // FIXME should not be required but 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(**filterPos), fail);
+ // 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(**filterPos), fail);
- if (FFABS(xInc - 0x10000) <10) { // unscaled
+ if (FFABS(xInc - 0x10000) < 10) { // unscaled
int i;
- filterSize= 1;
- FF_ALLOCZ_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail);
+ filterSize = 1;
+ FF_ALLOCZ_OR_GOTO(NULL, filter,
+ dstW * sizeof(*filter) * filterSize, fail);
- for (i=0; i<dstW; i++) {
- filter[i*filterSize]= fone;
- (*filterPos)[i]=i;
+ for (i = 0; i < dstW; i++) {
+ filter[i * filterSize] = fone;
+ (*filterPos)[i] = i;
}
-
- } else if (flags&SWS_POINT) { // lame looking point sampling mode
+ } else if (flags & SWS_POINT) { // lame looking point sampling mode
int i;
int xDstInSrc;
- filterSize= 1;
- FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail);
+ filterSize = 1;
+ FF_ALLOC_OR_GOTO(NULL, filter,
+ dstW * sizeof(*filter) * filterSize, fail);
- xDstInSrc= xInc/2 - 0x8000;
- for (i=0; i<dstW; i++) {
- int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
+ xDstInSrc = xInc / 2 - 0x8000;
+ for (i = 0; i < dstW; i++) {
+ int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
- (*filterPos)[i]= xx;
- filter[i]= fone;
- xDstInSrc+= xInc;
+ (*filterPos)[i] = xx;
+ filter[i] = fone;
+ xDstInSrc += xInc;
}
- } else if ((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) { // bilinear upscale
+ } else if ((xInc <= (1 << 16) && (flags & SWS_AREA)) ||
+ (flags & SWS_FAST_BILINEAR)) { // bilinear upscale
int i;
int xDstInSrc;
- filterSize= 2;
- FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail);
+ filterSize = 2;
+ FF_ALLOC_OR_GOTO(NULL, filter,
+ dstW * sizeof(*filter) * filterSize, fail);
- xDstInSrc= xInc/2 - 0x8000;
- for (i=0; i<dstW; i++) {
- int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
+ xDstInSrc = xInc / 2 - 0x8000;
+ for (i = 0; i < dstW; i++) {
+ int xx = (xDstInSrc - ((filterSize - 1) << 15) + (1 << 15)) >> 16;
int j;
- (*filterPos)[i]= xx;
- //bilinear upscale / linear interpolate / area averaging
- for (j=0; j<filterSize; j++) {
- int64_t coeff= fone - FFABS((xx<<16) - xDstInSrc)*(fone>>16);
- if (coeff<0) coeff=0;
- filter[i*filterSize + j]= coeff;
+ (*filterPos)[i] = xx;
+ // bilinear upscale / linear interpolate / area averaging
+ for (j = 0; j < filterSize; j++) {
+ int64_t coeff = fone - FFABS((xx << 16) - xDstInSrc) *
+ (fone >> 16);
+ if (coeff < 0)
+ coeff = 0;
+ filter[i * filterSize + j] = coeff;
xx++;
}
- xDstInSrc+= xInc;
+ xDstInSrc += xInc;
}
} else {
int64_t xDstInSrc;
int sizeFactor;
- if (flags&SWS_BICUBIC) sizeFactor= 4;
- else if (flags&SWS_X) sizeFactor= 8;
- else if (flags&SWS_AREA) sizeFactor= 1; //downscale only, for upscale it is bilinear
- else if (flags&SWS_GAUSS) sizeFactor= 8; // infinite ;)
- else if (flags&SWS_LANCZOS) sizeFactor= param[0] != SWS_PARAM_DEFAULT ? ceil(2*param[0]) : 6;
- else if (flags&SWS_SINC) sizeFactor= 20; // infinite ;)
- else if (flags&SWS_SPLINE) sizeFactor= 20; // infinite ;)
- else if (flags&SWS_BILINEAR) sizeFactor= 2;
+ if (flags & SWS_BICUBIC)
+ sizeFactor = 4;
+ else if (flags & SWS_X)
+ sizeFactor = 8;
+ else if (flags & SWS_AREA)
+ sizeFactor = 1; // downscale only, for upscale it is bilinear
+ else if (flags & SWS_GAUSS)
+ sizeFactor = 8; // infinite ;)
+ else if (flags & SWS_LANCZOS)
+ sizeFactor = param[0] != SWS_PARAM_DEFAULT ? ceil(2 * param[0]) : 6;
+ else if (flags & SWS_SINC)
+ sizeFactor = 20; // infinite ;)
+ else if (flags & SWS_SPLINE)
+ sizeFactor = 20; // infinite ;)
+ else if (flags & SWS_BILINEAR)
+ sizeFactor = 2;
else {
- sizeFactor= 0; //GCC warning killer
+ sizeFactor = 0; // GCC warning killer
assert(0);
}
- if (xInc <= 1<<16) filterSize= 1 + sizeFactor; // upscale
- else filterSize= 1 + (sizeFactor*srcW + dstW - 1)/ dstW;
+ if (xInc <= 1 << 16)
+ filterSize = 1 + sizeFactor; // upscale
+ else
+ filterSize = 1 + (sizeFactor * srcW + dstW - 1) / dstW;
filterSize = FFMIN(filterSize, srcW - 2);
filterSize = FFMAX(filterSize, 1);
- FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail);
+ FF_ALLOC_OR_GOTO(NULL, filter,
+ dstW * sizeof(*filter) * filterSize, fail);
- xDstInSrc= xInc - 0x10000;
- for (i=0; i<dstW; i++) {
- int xx= (xDstInSrc - ((filterSize-2)<<16)) / (1<<17);
+ xDstInSrc = xInc - 0x10000;
+ for (i = 0; i < dstW; i++) {
+ int xx = (xDstInSrc - ((filterSize - 2) << 16)) / (1 << 17);
int j;
- (*filterPos)[i]= xx;
- for (j=0; j<filterSize; j++) {
- int64_t d= (FFABS(((int64_t)xx<<17) - xDstInSrc))<<13;
+ (*filterPos)[i] = xx;
+ for (j = 0; j < filterSize; j++) {
+ int64_t d = (FFABS(((int64_t)xx << 17) - xDstInSrc)) << 13;
double floatd;
int64_t coeff;
- if (xInc > 1<<16)
- d= d*dstW/srcW;
- floatd= d * (1.0/(1<<30));
+ if (xInc > 1 << 16)
+ d = d * dstW / srcW;
+ floatd = d * (1.0 / (1 << 30));
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 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);
- if (d >= 1LL<<31) {
+ 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);
+ 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 = (-B - 6 * C) * ddd +
+ (6 * B + 30 * C) * dd +
+ (-12 * B - 48 * C) * d +
+ (8 * B + 24 * C) * (1 << 30);
}
- coeff *= fone>>(30+24);
+ coeff *= fone >> (30 + 24);
}
-/* else if (flags & SWS_X) {
- double p= param ? param*0.01 : 0.3;
- coeff = d ? sin(d*M_PI)/(d*M_PI) : 1.0;
- coeff*= pow(2.0, - p*d*d);
- }*/
+#if 0
+ else if (flags & SWS_X) {
+ double p = param ? param * 0.01 : 0.3;
+ coeff = d ? sin(d * M_PI) / (d * M_PI) : 1.0;
+ coeff *= pow(2.0, -p * d * d);
+ }
+#endif
else if (flags & SWS_X) {
- double A= param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
+ double A = param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
double c;
- if (floatd<1.0)
- c = cos(floatd*M_PI);
+ if (floatd < 1.0)
+ c = cos(floatd * M_PI);
else
- c=-1.0;
- if (c<0.0) c= -pow(-c, A);
- else c= pow( c, A);
- coeff= (c*0.5 + 0.5)*fone;
+ c = -1.0;
+ if (c < 0.0)
+ c = -pow(-c, A);
+ else
+ c = pow(c, A);
+ coeff = (c * 0.5 + 0.5) * fone;
} else if (flags & SWS_AREA) {
- int64_t d2= d - (1<<29);
- if (d2*xInc < -(1LL<<(29+16))) coeff= 1.0 * (1LL<<(30+16));
- else if (d2*xInc < (1LL<<(29+16))) coeff= -d2*xInc + (1LL<<(29+16));
- else coeff=0.0;
- coeff *= fone>>(30+16);
+ int64_t d2 = d - (1 << 29);
+ if (d2 * xInc < -(1LL << (29 + 16)))
+ coeff = 1.0 * (1LL << (30 + 16));
+ else if (d2 * xInc < (1LL << (29 + 16)))
+ coeff = -d2 * xInc + (1LL << (29 + 16));
+ else
+ coeff = 0.0;
+ coeff *= fone >> (30 + 16);
} else if (flags & SWS_GAUSS) {
- double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
- coeff = (pow(2.0, - p*floatd*floatd))*fone;
+ double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
+ coeff = (pow(2.0, -p * floatd * floatd)) * fone;
} else if (flags & SWS_SINC) {
- coeff = (d ? sin(floatd*M_PI)/(floatd*M_PI) : 1.0)*fone;
+ coeff = (d ? sin(floatd * M_PI) / (floatd * M_PI) : 1.0) * fone;
} else if (flags & SWS_LANCZOS) {
- double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
- coeff = (d ? sin(floatd*M_PI)*sin(floatd*M_PI/p)/(floatd*floatd*M_PI*M_PI/p) : 1.0)*fone;
- if (floatd>p) coeff=0;
+ double p = param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
+ coeff = (d ? sin(floatd * M_PI) * sin(floatd * M_PI / p) /
+ (floatd * floatd * M_PI * M_PI / p) : 1.0) * fone;
+ if (floatd > p)
+ coeff = 0;
} else if (flags & SWS_BILINEAR) {
- coeff= (1<<30) - d;
- if (coeff<0) coeff=0;
+ coeff = (1 << 30) - d;
+ if (coeff < 0)
+ coeff = 0;
coeff *= fone >> 30;
} else if (flags & SWS_SPLINE) {
- double p=-2.196152422706632;
- coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, floatd) * fone;
+ double p = -2.196152422706632;
+ coeff = getSplineCoeff(1.0, 0.0, p, -p - 1.0, floatd) * fone;
} else {
- coeff= 0.0; //GCC warning killer
+ coeff = 0.0; // GCC warning killer
assert(0);
}
- filter[i*filterSize + j]= coeff;
+ filter[i * filterSize + j] = coeff;
xx++;
}
- xDstInSrc+= 2*xInc;
+ xDstInSrc += 2 * xInc;
}
}
/* apply src & dst Filter to filter -> filter2
- av_free(filter);
- */
- assert(filterSize>0);
- filter2Size= filterSize;
- if (srcFilter) filter2Size+= srcFilter->length - 1;
- if (dstFilter) filter2Size+= dstFilter->length - 1;
- assert(filter2Size>0);
- FF_ALLOCZ_OR_GOTO(NULL, filter2, filter2Size*dstW*sizeof(*filter2), fail);
-
- for (i=0; i<dstW; i++) {
+ * av_free(filter);
+ */
+ assert(filterSize > 0);
+ filter2Size = filterSize;
+ if (srcFilter)
+ filter2Size += srcFilter->length - 1;
+ if (dstFilter)
+ filter2Size += dstFilter->length - 1;
+ assert(filter2Size > 0);
+ FF_ALLOCZ_OR_GOTO(NULL, filter2, filter2Size * dstW * sizeof(*filter2), fail);
+
+ for (i = 0; i < dstW; i++) {
int j, k;
- if(srcFilter) {
- for (k=0; k<srcFilter->length; k++) {
- for (j=0; j<filterSize; j++)
- filter2[i*filter2Size + k + j] += srcFilter->coeff[k]*filter[i*filterSize + j];
+ if (srcFilter) {
+ for (k = 0; k < srcFilter->length; k++) {
+ for (j = 0; j < filterSize; j++)
+ filter2[i * filter2Size + k + j] +=
+ srcFilter->coeff[k] * filter[i * filterSize + j];
}
} else {
- for (j=0; j<filterSize; j++)
- filter2[i*filter2Size + j]= filter[i*filterSize + j];
+ for (j = 0; j < filterSize; j++)
+ filter2[i * filter2Size + j] = filter[i * filterSize + j];
}
- //FIXME dstFilter
+ // FIXME dstFilter
- (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2;
+ (*filterPos)[i] += (filterSize - 1) / 2 - (filter2Size - 1) / 2;
}
av_freep(&filter);
/* try to reduce the filter-size (step1 find size and shift left) */
// Assume it is near normalized (*0.5 or *2.0 is OK but * 0.001 is not).
- minFilterSize= 0;
- for (i=dstW-1; i>=0; i--) {
- int min= filter2Size;
+ minFilterSize = 0;
+ for (i = dstW - 1; i >= 0; i--) {
+ int min = filter2Size;
int j;
- int64_t cutOff=0.0;
+ int64_t cutOff = 0.0;
/* get rid of near zero elements on the left by shifting left */
- for (j=0; j<filter2Size; j++) {
+ for (j = 0; j < filter2Size; j++) {
int k;
- cutOff += FFABS(filter2[i*filter2Size]);
+ cutOff += FFABS(filter2[i * filter2Size]);
- if (cutOff > SWS_MAX_REDUCE_CUTOFF*fone) break;
+ if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
+ break;
- /* preserve monotonicity because the core can't handle the filter otherwise */
- if (i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
+ /* preserve monotonicity because the core can't handle the
+ * filter otherwise */
+ if (i < dstW - 1 && (*filterPos)[i] >= (*filterPos)[i + 1])
+ break;
// move filter coefficients left
- for (k=1; k<filter2Size; k++)
- filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k];
- filter2[i*filter2Size + k - 1]= 0;
+ for (k = 1; k < filter2Size; k++)
+ filter2[i * filter2Size + k - 1] = filter2[i * filter2Size + k];
+ filter2[i * filter2Size + k - 1] = 0;
(*filterPos)[i]++;
}
- cutOff=0;
+ cutOff = 0;
/* count near zeros on the right */
- for (j=filter2Size-1; j>0; j--) {
- cutOff += FFABS(filter2[i*filter2Size + j]);
+ for (j = filter2Size - 1; j > 0; j--) {
+ cutOff += FFABS(filter2[i * filter2Size + j]);
- if (cutOff > SWS_MAX_REDUCE_CUTOFF*fone) break;
+ if (cutOff > SWS_MAX_REDUCE_CUTOFF * fone)
+ break;
min--;
}
- if (min>minFilterSize) minFilterSize= min;
+ if (min > minFilterSize)
+ minFilterSize = min;
}
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
+ // we can handle the special case 4, so we don't want to go the full 8
if (minFilterSize < 5)
filterAlign = 4;
- // We really don't want to waste our time
- // doing useless computation, so fall back on
- // the scalar C code for very small filters.
- // Vectorizing is worth it only if you have a
- // decent-sized vector.
+ /* We really don't want to waste our time doing useless computation, so
+ * fall back on the scalar C code for very small filters.
+ * Vectorizing is worth it only if you have a decent-sized vector. */
if (minFilterSize < 3)
filterAlign = 1;
}
@@ -432,34 +475,39 @@ static int initFilter(int16_t **outFilter, int32_t **filterPos, int *outFilterSi
if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) {
// special case for unscaled vertical filtering
if (minFilterSize == 1 && filterAlign == 2)
- filterAlign= 1;
+ filterAlign = 1;
}
assert(minFilterSize > 0);
- filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
+ filterSize = (minFilterSize + (filterAlign - 1)) & (~(filterAlign - 1));
assert(filterSize > 0);
- filter= av_malloc(filterSize*dstW*sizeof(*filter));
- if (filterSize >= MAX_FILTER_SIZE*16/((flags&SWS_ACCURATE_RND) ? APCK_SIZE : 16) || !filter)
+ filter = av_malloc(filterSize * dstW * sizeof(*filter));
+ if (filterSize >= MAX_FILTER_SIZE * 16 /
+ ((flags & SWS_ACCURATE_RND) ? APCK_SIZE : 16) || !filter)
goto fail;
- *outFilterSize= filterSize;
+ *outFilterSize = filterSize;
- if (flags&SWS_PRINT_INFO)
- av_log(NULL, AV_LOG_VERBOSE, "SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size, filterSize);
+ if (flags & SWS_PRINT_INFO)
+ av_log(NULL, AV_LOG_VERBOSE,
+ "SwScaler: reducing / aligning filtersize %d -> %d\n",
+ filter2Size, filterSize);
/* try to reduce the filter-size (step2 reduce it) */
- for (i=0; i<dstW; i++) {
+ for (i = 0; i < dstW; i++) {
int j;
- for (j=0; j<filterSize; j++) {
- if (j>=filter2Size) filter[i*filterSize + j]= 0;
- else filter[i*filterSize + j]= filter2[i*filter2Size + j];
- if((flags & SWS_BITEXACT) && j>=minFilterSize)
- filter[i*filterSize + j]= 0;
+ for (j = 0; j < filterSize; j++) {
+ if (j >= filter2Size)
+ filter[i * filterSize + j] = 0;
+ else
+ filter[i * filterSize + j] = filter2[i * filter2Size + j];
+ if ((flags & SWS_BITEXACT) && j >= minFilterSize)
+ filter[i * filterSize + j] = 0;
}
}
- //FIXME try to align filterPos if possible
+ // FIXME try to align filterPos if possible
- //fix borders
+ // fix borders
if (is_horizontal) {
for (i = 0; i < dstW; i++) {
int j;
@@ -468,7 +516,7 @@ static int initFilter(int16_t **outFilter, int32_t **filterPos, int *outFilterSi
for (j = 1; j < filterSize; j++) {
int left = FFMAX(j + (*filterPos)[i], 0);
filter[i * filterSize + left] += filter[i * filterSize + j];
- filter[i * filterSize + j ] = 0;
+ filter[i * filterSize + j] = 0;
}
(*filterPos)[i] = 0;
}
@@ -479,7 +527,7 @@ static int initFilter(int16_t **outFilter, int32_t **filterPos, int *outFilterSi
for (j = filterSize - 2; j >= 0; j--) {
int right = FFMIN(j + shift, filterSize - 1);
filter[i * filterSize + right] += filter[i * filterSize + j];
- filter[i * filterSize + j ] = 0;
+ filter[i * filterSize + j] = 0;
}
(*filterPos)[i] = srcW - filterSize;
}
@@ -488,37 +536,40 @@ static int initFilter(int16_t **outFilter, int32_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+3)*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++) {
+ for (i = 0; i < dstW; i++) {
int j;
- int64_t error=0;
- int64_t sum=0;
+ int64_t error = 0;
+ int64_t sum = 0;
- for (j=0; j<filterSize; j++) {
- sum+= filter[i*filterSize + j];
+ for (j = 0; j < filterSize; j++) {
+ sum += filter[i * filterSize + j];
}
- sum= (sum + one/2)/ one;
- for (j=0; j<*outFilterSize; j++) {
- int64_t v= filter[i*filterSize + j] + error;
- int intV= ROUNDED_DIV(v, sum);
- (*outFilter)[i*(*outFilterSize) + j]= intV;
- error= v - intV*sum;
+ sum = (sum + one / 2) / one;
+ for (j = 0; j < *outFilterSize; j++) {
+ int64_t v = filter[i * filterSize + j] + error;
+ int intV = ROUNDED_DIV(v, sum);
+ (*outFilter)[i * (*outFilterSize) + j] = intV;
+ error = v - intV * sum;
}
}
- (*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 k= (dstW - 1) * (*outFilterSize) + i;
+ (*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 k = (dstW - 1) * (*outFilterSize) + i;
(*outFilter)[k + 1 * (*outFilterSize)] =
(*outFilter)[k + 2 * (*outFilterSize)] =
(*outFilter)[k + 3 * (*outFilterSize)] = (*outFilter)[k];
}
- ret=0;
+ ret = 0;
+
fail:
av_free(filter);
av_free(filter2);
@@ -526,7 +577,8 @@ fail:
}
#if HAVE_MMX2
-static int initMMX2HScaler(int dstW, int xInc, uint8_t *filterCode, int16_t *filter, int32_t *filterPos, int numSplits)
+static int initMMX2HScaler(int dstW, int xInc, uint8_t *filterCode,
+ int16_t *filter, int32_t *filterPos, int numSplits)
{
uint8_t *fragmentA;
x86_reg imm8OfPShufW1A;
@@ -541,18 +593,17 @@ static int initMMX2HScaler(int dstW, int xInc, uint8_t *filterCode, int16_t *fil
int xpos, i;
// create an optimized horizontal scaling routine
- /* This scaler is made of runtime-generated MMX2 code using specially
- * tuned pshufw instructions. For every four output pixels, if four
- * input pixels are enough for the fast bilinear scaling, then a chunk
- * of fragmentB is used. If five input pixels are needed, then a chunk
- * of fragmentA is used.
+ /* This scaler is made of runtime-generated MMX2 code using specially tuned
+ * pshufw instructions. For every four output pixels, if four input pixels
+ * are enough for the fast bilinear scaling, then a chunk of fragmentB is
+ * used. If five input pixels are needed, then a chunk of fragmentA is used.
*/
- //code fragment
+ // code fragment
- __asm__ volatile(
+ __asm__ volatile (
"jmp 9f \n\t"
- // Begin
+ // Begin
"0: \n\t"
"movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
"movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
@@ -572,27 +623,27 @@ static int initMMX2HScaler(int dstW, int xInc, uint8_t *filterCode, int16_t *fil
"movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
"add $8, %%"REG_a" \n\t"
- // End
+ // End
"9: \n\t"
-// "int $3 \n\t"
- "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
- "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
- "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
+ // "int $3 \n\t"
+ "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
+ "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
+ "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
"dec %1 \n\t"
"dec %2 \n\t"
"sub %0, %1 \n\t"
"sub %0, %2 \n\t"
- "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
+ "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
"sub %0, %3 \n\t"
- :"=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
- "=r" (fragmentLengthA)
- );
+ : "=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
+ "=r" (fragmentLengthA)
+ );
- __asm__ volatile(
+ __asm__ volatile (
"jmp 9f \n\t"
- // Begin
+ // Begin
"0: \n\t"
"movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
"movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
@@ -610,76 +661,81 @@ static int initMMX2HScaler(int dstW, int xInc, uint8_t *filterCode, int16_t *fil
"movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
"add $8, %%"REG_a" \n\t"
- // End
+ // End
"9: \n\t"
-// "int $3 \n\t"
- "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
- "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
- "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
+ // "int $3 \n\t"
+ "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
+ "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
+ "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
"dec %1 \n\t"
"dec %2 \n\t"
"sub %0, %1 \n\t"
"sub %0, %2 \n\t"
- "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
+ "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
"sub %0, %3 \n\t"
- :"=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
- "=r" (fragmentLengthB)
- );
+ : "=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
+ "=r" (fragmentLengthB)
+ );
- xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
- fragmentPos=0;
+ xpos = 0; // lumXInc/2 - 0x8000; // difference between pixel centers
+ fragmentPos = 0;
- for (i=0; i<dstW/numSplits; i++) {
- int xx=xpos>>16;
+ for (i = 0; i < dstW / numSplits; i++) {
+ int xx = xpos >> 16;
- if ((i&3) == 0) {
- int a=0;
- int b=((xpos+xInc)>>16) - xx;
- int c=((xpos+xInc*2)>>16) - xx;
- int d=((xpos+xInc*3)>>16) - xx;
- int inc = (d+1<4);
- uint8_t *fragment = (d+1<4) ? fragmentB : fragmentA;
- x86_reg imm8OfPShufW1 = (d+1<4) ? imm8OfPShufW1B : imm8OfPShufW1A;
- x86_reg imm8OfPShufW2 = (d+1<4) ? imm8OfPShufW2B : imm8OfPShufW2A;
- x86_reg fragmentLength = (d+1<4) ? fragmentLengthB : fragmentLengthA;
- int maxShift= 3-(d+inc);
- int shift=0;
+ if ((i & 3) == 0) {
+ int a = 0;
+ int b = ((xpos + xInc) >> 16) - xx;
+ int c = ((xpos + xInc * 2) >> 16) - xx;
+ int d = ((xpos + xInc * 3) >> 16) - xx;
+ int inc = (d + 1 < 4);
+ uint8_t *fragment = (d + 1 < 4) ? fragmentB : fragmentA;
+ x86_reg imm8OfPShufW1 = (d + 1 < 4) ? imm8OfPShufW1B : imm8OfPShufW1A;
+ x86_reg imm8OfPShufW2 = (d + 1 < 4) ? imm8OfPShufW2B : imm8OfPShufW2A;
+ x86_reg fragmentLength = (d + 1 < 4) ? fragmentLengthB : fragmentLengthA;
+ int maxShift = 3 - (d + inc);
+ int shift = 0;
if (filterCode) {
- filter[i ] = (( xpos & 0xFFFF) ^ 0xFFFF)>>9;
- filter[i+1] = (((xpos+xInc ) & 0xFFFF) ^ 0xFFFF)>>9;
- filter[i+2] = (((xpos+xInc*2) & 0xFFFF) ^ 0xFFFF)>>9;
- filter[i+3] = (((xpos+xInc*3) & 0xFFFF) ^ 0xFFFF)>>9;
- filterPos[i/2]= xx;
+ filter[i] = ((xpos & 0xFFFF) ^ 0xFFFF) >> 9;
+ filter[i + 1] = (((xpos + xInc) & 0xFFFF) ^ 0xFFFF) >> 9;
+ filter[i + 2] = (((xpos + xInc * 2) & 0xFFFF) ^ 0xFFFF) >> 9;
+ filter[i + 3] = (((xpos + xInc * 3) & 0xFFFF) ^ 0xFFFF) >> 9;
+ filterPos[i / 2] = xx;
memcpy(filterCode + fragmentPos, fragment, fragmentLength);
- filterCode[fragmentPos + imm8OfPShufW1]=
- (a+inc) | ((b+inc)<<2) | ((c+inc)<<4) | ((d+inc)<<6);
- filterCode[fragmentPos + imm8OfPShufW2]=
- a | (b<<2) | (c<<4) | (d<<6);
-
- if (i+4-inc>=dstW) shift=maxShift; //avoid overread
- else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align
-
- if (shift && i>=shift) {
- filterCode[fragmentPos + imm8OfPShufW1]+= 0x55*shift;
- filterCode[fragmentPos + imm8OfPShufW2]+= 0x55*shift;
- filterPos[i/2]-=shift;
+ filterCode[fragmentPos + imm8OfPShufW1] = (a + inc) |
+ ((b + inc) << 2) |
+ ((c + inc) << 4) |
+ ((d + inc) << 6);
+ filterCode[fragmentPos + imm8OfPShufW2] = a | (b << 2) |
+ (c << 4) |
+ (d << 6);
+
+ if (i + 4 - inc >= dstW)
+ shift = maxShift; // avoid overread
+ else if ((filterPos[i / 2] & 3) <= maxShift)
+ shift = filterPos[i / 2] & 3; // align
+
+ if (shift && i >= shift) {
+ filterCode[fragmentPos + imm8OfPShufW1] += 0x55 * shift;
+ filterCode[fragmentPos + imm8OfPShufW2] += 0x55 * shift;
+ filterPos[i / 2] -= shift;
}
}
- fragmentPos+= fragmentLength;
+ fragmentPos += fragmentLength;
if (filterCode)
- filterCode[fragmentPos]= RET;
+ filterCode[fragmentPos] = RET;
}
- xpos+=xInc;
+ xpos += xInc;
}
if (filterCode)
- filterPos[((i/2)+1)&(~1)]= xpos>>16; // needed to jump to the next part
+ filterPos[((i / 2) + 1) & (~1)] = xpos >> 16; // needed to jump to the next part
return fragmentPos + 1;
}
@@ -695,24 +751,27 @@ 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);
+ memcpy(c->srcColorspaceTable, inv_table, sizeof(int) * 4);
+ memcpy(c->dstColorspaceTable, table, sizeof(int) * 4);
- c->brightness= brightness;
- c->contrast = contrast;
- c->saturation= saturation;
- c->srcRange = srcRange;
- c->dstRange = dstRange;
- if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
+ c->brightness = brightness;
+ c->contrast = contrast;
+ c->saturation = saturation;
+ c->srcRange = 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
+ ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness,
+ contrast, saturation);
+ // FIXME factorize
if (HAVE_ALTIVEC && av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC)
- ff_yuv2rgb_init_tables_altivec(c, inv_table, brightness, contrast, saturation);
+ ff_yuv2rgb_init_tables_altivec(c, inv_table, brightness,
+ contrast, saturation);
return 0;
}
@@ -720,15 +779,16 @@ 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;
+ if (isYUV(c->dstFormat) || isGray(c->dstFormat))
+ return -1;
- *inv_table = c->srcColorspaceTable;
- *table = c->dstColorspaceTable;
- *srcRange = c->srcRange;
- *dstRange = c->dstRange;
- *brightness= c->brightness;
- *contrast = c->contrast;
- *saturation= c->saturation;
+ *inv_table = c->srcColorspaceTable;
+ *table = c->dstColorspaceTable;
+ *srcRange = c->srcRange;
+ *dstRange = c->dstRange;
+ *brightness = c->brightness;
+ *contrast = c->contrast;
+ *saturation = c->saturation;
return 0;
}
@@ -736,17 +796,26 @@ int sws_getColorspaceDetails(struct SwsContext *c, int **inv_table,
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_alloc_context(void)
{
- SwsContext *c= av_mallocz(sizeof(SwsContext));
+ SwsContext *c = av_mallocz(sizeof(SwsContext));
c->av_class = &sws_context_class;
av_opt_set_defaults(c);
@@ -759,117 +828,133 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
int i;
int usesVFilter, usesHFilter;
int unscaled;
- SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
- 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;
+ SwsFilter dummyFilter = { NULL, NULL, NULL, NULL };
+ 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);
+ int dst_stride_px = dst_stride >> 1;
int flags, cpu_flags;
- enum PixelFormat srcFormat= c->srcFormat;
- enum PixelFormat dstFormat= c->dstFormat;
+ 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();
+ if (!rgb15to16)
+ sws_rgb2rgb_init();
unscaled = (srcW == dstW && srcH == dstH);
if (!sws_isSupportedInput(srcFormat)) {
- av_log(c, AV_LOG_ERROR, "%s is not supported as input pixel format\n", sws_format_name(srcFormat));
+ av_log(c, AV_LOG_ERROR, "%s is not supported as input pixel format\n",
+ sws_format_name(srcFormat));
return AVERROR(EINVAL);
}
if (!sws_isSupportedOutput(dstFormat)) {
- av_log(c, AV_LOG_ERROR, "%s is not supported as output pixel format\n", sws_format_name(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_AREA
- |SWS_BILINEAR
- |SWS_FAST_BILINEAR
- |SWS_BICUBIC
- |SWS_X
- |SWS_GAUSS
- |SWS_LANCZOS
- |SWS_SINC
- |SWS_SPLINE
- |SWS_BICUBLIN);
- if(!i || (i & (i-1))) {
- av_log(c, AV_LOG_ERROR, "Exactly one scaler algorithm must be chosen\n");
+ i = flags & (SWS_POINT |
+ SWS_AREA |
+ SWS_BILINEAR |
+ SWS_FAST_BILINEAR |
+ SWS_BICUBIC |
+ SWS_X |
+ SWS_GAUSS |
+ SWS_LANCZOS |
+ SWS_SINC |
+ SWS_SPLINE |
+ SWS_BICUBLIN);
+ if (!i || (i & (i - 1))) {
+ 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
+ if (srcW < 4 || srcH < 1 || dstW < 8 || dstH < 1) {
+ /* FIXME check if these are enough and try to lower them after
+ * fixing the relevant parts of the code */
av_log(c, AV_LOG_ERROR, "%dx%d -> %dx%d is invalid scaling dimension\n",
srcW, srcH, dstW, dstH);
return AVERROR(EINVAL);
}
- if (!dstFilter) dstFilter= &dummyFilter;
- if (!srcFilter) srcFilter= &dummyFilter;
+ if (!dstFilter)
+ dstFilter = &dummyFilter;
+ if (!srcFilter)
+ srcFilter = &dummyFilter;
- c->lumXInc= (((int64_t)srcW<<16) + (dstW>>1))/dstW;
- c->lumYInc= (((int64_t)srcH<<16) + (dstH>>1))/dstH;
+ c->lumXInc = (((int64_t)srcW << 16) + (dstW >> 1)) / dstW;
+ c->lumYInc = (((int64_t)srcH << 16) + (dstH >> 1)) / dstH;
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;
+ c->vRounder = 4 * 0x0001000100010001ULL;
- usesVFilter = (srcFilter->lumV && srcFilter->lumV->length>1) ||
- (srcFilter->chrV && srcFilter->chrV->length>1) ||
- (dstFilter->lumV && dstFilter->lumV->length>1) ||
- (dstFilter->chrV && dstFilter->chrV->length>1);
- usesHFilter = (srcFilter->lumH && srcFilter->lumH->length>1) ||
- (srcFilter->chrH && srcFilter->chrH->length>1) ||
- (dstFilter->lumH && dstFilter->lumH->length>1) ||
- (dstFilter->chrH && dstFilter->chrH->length>1);
+ usesVFilter = (srcFilter->lumV && srcFilter->lumV->length > 1) ||
+ (srcFilter->chrV && srcFilter->chrV->length > 1) ||
+ (dstFilter->lumV && dstFilter->lumV->length > 1) ||
+ (dstFilter->chrV && dstFilter->chrV->length > 1);
+ usesHFilter = (srcFilter->lumH && srcFilter->lumH->length > 1) ||
+ (srcFilter->chrH && srcFilter->chrH->length > 1) ||
+ (dstFilter->lumH && dstFilter->lumH->length > 1) ||
+ (dstFilter->chrH && dstFilter->chrH->length > 1);
getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
- // reuse chroma for 2 pixels RGB/BGR unless user wants full chroma interpolation
+ /* reuse chroma for 2 pixels RGB/BGR unless user wants full
+ * chroma interpolation */
if (flags & SWS_FULL_CHR_H_INT &&
- isAnyRGB(dstFormat) &&
- dstFormat != PIX_FMT_RGBA &&
- dstFormat != PIX_FMT_ARGB &&
- dstFormat != PIX_FMT_BGRA &&
- dstFormat != PIX_FMT_ABGR &&
+ isAnyRGB(dstFormat) &&
+ 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;
+ flags &= ~SWS_FULL_CHR_H_INT;
c->flags = flags;
}
- if (isAnyRGB(dstFormat) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
+ if (isAnyRGB(dstFormat) && !(flags & SWS_FULL_CHR_H_INT))
+ c->chrDstHSubSample = 1;
// drop some chroma lines if the user wants it
- c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT;
- c->chrSrcVSubSample+= c->vChrDrop;
-
- // drop every other pixel for chroma calculation unless user wants full chroma
- if (isAnyRGB(srcFormat) && !(flags&SWS_FULL_CHR_H_INP)
- && 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)))
- c->chrSrcHSubSample=1;
+ c->vChrDrop = (flags & SWS_SRC_V_CHR_DROP_MASK) >>
+ SWS_SRC_V_CHR_DROP_SHIFT;
+ c->chrSrcVSubSample += c->vChrDrop;
+
+ /* drop every other pixel for chroma calculation unless user
+ * wants full chroma */
+ if (isAnyRGB(srcFormat) && !(flags & SWS_FULL_CHR_H_INP) &&
+ 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)))
+ c->chrSrcHSubSample = 1;
// 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);
+ c->chrSrcW = -((-srcW) >> c->chrSrcHSubSample);
+ c->chrSrcH = -((-srcH) >> c->chrSrcVSubSample);
+ c->chrDstW = -((-dstW) >> c->chrDstHSubSample);
+ c->chrDstH = -((-dstH) >> c->chrDstVSubSample);
/* unscaled special cases */
- if (unscaled && !usesHFilter && !usesVFilter && (c->srcRange == c->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",
+ 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 0;
}
@@ -886,35 +971,40 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
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)
- av_log(c, AV_LOG_INFO, "output width is not a multiple of 32 -> no MMX2 scaler\n");
+ 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)
+ av_log(c, AV_LOG_INFO,
+ "output width is not a multiple of 32 -> no MMX2 scaler\n");
}
- if (usesHFilter) c->canMMX2BeUsed=0;
- }
- else
- c->canMMX2BeUsed=0;
-
- c->chrXInc= (((int64_t)c->chrSrcW<<16) + (c->chrDstW>>1))/c->chrDstW;
- c->chrYInc= (((int64_t)c->chrSrcH<<16) + (c->chrDstH>>1))/c->chrDstH;
-
- // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
- // but only for the FAST_BILINEAR mode otherwise do correct scaling
- // n-2 is the last chrominance sample available
- // this is not perfect, but no one should notice the difference, the more correct variant
- // would be like the vertical one, but that would require some special code for the
- // first and last pixel
- if (flags&SWS_FAST_BILINEAR) {
+ if (usesHFilter)
+ c->canMMX2BeUsed = 0;
+ } else
+ c->canMMX2BeUsed = 0;
+
+ c->chrXInc = (((int64_t)c->chrSrcW << 16) + (c->chrDstW >> 1)) / c->chrDstW;
+ c->chrYInc = (((int64_t)c->chrSrcH << 16) + (c->chrDstH >> 1)) / c->chrDstH;
+
+ /* Match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src
+ * to pixel n-2 of dst, but only for the FAST_BILINEAR mode otherwise do
+ * correct scaling.
+ * n-2 is the last chrominance sample available.
+ * This is not perfect, but no one should notice the difference, the more
+ * correct variant would be like the vertical one, but that would require
+ * some special code for the first and last pixel */
+ if (flags & SWS_FAST_BILINEAR) {
if (c->canMMX2BeUsed) {
- c->lumXInc+= 20;
- c->chrXInc+= 20;
+ c->lumXInc += 20;
+ c->chrXInc += 20;
}
- //we don't use the x86 asm scaler if MMX is available
+ // we don't use the x86 asm scaler if MMX is available
else if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) {
- c->lumXInc = ((int64_t)(srcW-2)<<16)/(dstW-2) - 20;
- c->chrXInc = ((int64_t)(c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20;
+ c->lumXInc = ((int64_t)(srcW - 2) << 16) / (dstW - 2) - 20;
+ c->chrXInc = ((int64_t)(c->chrSrcW - 2) << 16) / (c->chrDstW - 2) - 20;
}
}
@@ -923,8 +1013,10 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
#if HAVE_MMX2
// 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);
+ 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, -1, 0);
@@ -939,13 +1031,15 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
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);
- FF_ALLOCZ_OR_GOTO(c, c->hChrFilterPos, (c->chrDstW/2/4+8)*sizeof(int32_t), fail);
+ 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);
+ FF_ALLOCZ_OR_GOTO(c, c->hChrFilterPos, (c->chrDstW / 2 / 4 + 8) * sizeof(int32_t), fail);
- initMMX2HScaler( dstW, c->lumXInc, c->lumMmx2FilterCode, c->hLumFilter, c->hLumFilterPos, 8);
- initMMX2HScaler(c->chrDstW, c->chrXInc, c->chrMmx2FilterCode, c->hChrFilter, c->hChrFilterPos, 4);
+ initMMX2HScaler(dstW, c->lumXInc, c->lumMmx2FilterCode,
+ c->hLumFilter, c->hLumFilterPos, 8);
+ initMMX2HScaler(c->chrDstW, c->chrXInc, c->chrMmx2FilterCode,
+ c->hChrFilter, c->hChrFilterPos, 4);
#ifdef MAP_ANONYMOUS
mprotect(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize, PROT_EXEC | PROT_READ);
@@ -954,182 +1048,221 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
} else
#endif /* HAVE_MMX2 */
{
- const int filterAlign=
- (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) ? 4 :
+ const int filterAlign =
+ (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, cpu_flags,
- srcFilter->lumH, dstFilter->lumH, c->param, 1) < 0)
+ if (initFilter(&c->hLumFilter, &c->hLumFilterPos,
+ &c->hLumFilterSize, c->lumXInc,
+ srcW, dstW, filterAlign, 1 << 14,
+ (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
+ cpu_flags, srcFilter->lumH, dstFilter->lumH,
+ c->param, 1) < 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, cpu_flags,
- srcFilter->chrH, dstFilter->chrH, c->param, 1) < 0)
+ if (initFilter(&c->hChrFilter, &c->hChrFilterPos,
+ &c->hChrFilterSize, c->chrXInc,
+ c->chrSrcW, c->chrDstW, filterAlign, 1 << 14,
+ (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
+ cpu_flags, srcFilter->chrH, dstFilter->chrH,
+ c->param, 1) < 0)
goto fail;
}
} // initialize horizontal stuff
/* precalculate vertical scaler filter coefficients */
{
- const int filterAlign=
- (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) ? 2 :
+ const int filterAlign =
+ (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, cpu_flags,
- srcFilter->lumV, dstFilter->lumV, c->param, 0) < 0)
+ if (initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize,
+ c->lumYInc, srcH, dstH, filterAlign, (1 << 12),
+ (flags & SWS_BICUBLIN) ? (flags | SWS_BICUBIC) : flags,
+ cpu_flags, srcFilter->lumV, dstFilter->lumV,
+ c->param, 0) < 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, cpu_flags,
- srcFilter->chrV, dstFilter->chrV, c->param, 0) < 0)
+ if (initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize,
+ c->chrYInc, c->chrSrcH, c->chrDstH,
+ filterAlign, (1 << 12),
+ (flags & SWS_BICUBLIN) ? (flags | SWS_BILINEAR) : flags,
+ cpu_flags, srcFilter->chrV, dstFilter->chrV,
+ c->param, 0) < 0)
goto fail;
#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);
+ 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);
- for (i=0;i<c->vLumFilterSize*c->dstH;i++) {
+ for (i = 0; i < c->vLumFilterSize * c->dstH; i++) {
int j;
short *p = (short *)&c->vYCoeffsBank[i];
- for (j=0;j<8;j++)
+ for (j = 0; j < 8; j++)
p[j] = c->vLumFilter[i];
}
- for (i=0;i<c->vChrFilterSize*c->chrDstH;i++) {
+ for (i = 0; i < c->vChrFilterSize * c->chrDstH; i++) {
int j;
short *p = (short *)&c->vCCoeffsBank[i];
- for (j=0;j<8;j++)
+ for (j = 0; j < 8; j++)
p[j] = c->vChrFilter[i];
}
#endif
}
// calculate buffer sizes so that they won't run out while handling these damn slices
- c->vLumBufSize= c->vLumFilterSize;
- c->vChrBufSize= c->vChrFilterSize;
- for (i=0; i<dstH; i++) {
- int chrI = (int64_t) i * c->chrDstH / dstH;
- int nextSlice= FFMAX(c->vLumFilterPos[i ] + c->vLumFilterSize - 1,
- ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
-
- nextSlice>>= c->chrSrcVSubSample;
- nextSlice<<= c->chrSrcVSubSample;
- if (c->vLumFilterPos[i ] + c->vLumBufSize < nextSlice)
- c->vLumBufSize= nextSlice - c->vLumFilterPos[i];
- if (c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>c->chrSrcVSubSample))
- c->vChrBufSize= (nextSlice>>c->chrSrcVSubSample) - c->vChrFilterPos[chrI];
+ c->vLumBufSize = c->vLumFilterSize;
+ c->vChrBufSize = c->vChrFilterSize;
+ for (i = 0; i < dstH; i++) {
+ int chrI = (int64_t)i * c->chrDstH / dstH;
+ int nextSlice = FFMAX(c->vLumFilterPos[i] + c->vLumFilterSize - 1,
+ ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)
+ << c->chrSrcVSubSample));
+
+ nextSlice >>= c->chrSrcVSubSample;
+ nextSlice <<= c->chrSrcVSubSample;
+ if (c->vLumFilterPos[i] + c->vLumBufSize < nextSlice)
+ c->vLumBufSize = nextSlice - c->vLumFilterPos[i];
+ if (c->vChrFilterPos[chrI] + c->vChrBufSize <
+ (nextSlice >> c->chrSrcVSubSample))
+ c->vChrBufSize = (nextSlice >> c->chrSrcVSubSample) -
+ c->vChrFilterPos[chrI];
}
- // 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*3*sizeof(int16_t*), fail);
- FF_ALLOC_OR_GOTO(c, c->chrUPixBuf, c->vChrBufSize*3*sizeof(int16_t*), fail);
- FF_ALLOC_OR_GOTO(c, c->chrVPixBuf, c->vChrBufSize*3*sizeof(int16_t*), 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 * 3 * sizeof(int16_t *), fail);
+ FF_ALLOC_OR_GOTO(c, c->chrUPixBuf, c->vChrBufSize * 3 * sizeof(int16_t *), fail);
+ FF_ALLOC_OR_GOTO(c, c->chrVPixBuf, c->vChrBufSize * 3 * sizeof(int16_t *), fail);
if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat))
- FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf, c->vLumBufSize*3*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)
+ FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf, c->vLumBufSize * 3 * sizeof(int16_t *), fail);
+ /* Note we need at least one pixel more at the end because of the MMX code
+ * (just in case someone wants to 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], dst_stride+16, fail);
- c->lumPixBuf[i] = c->lumPixBuf[i+c->vLumBufSize];
+ for (i = 0; i < c->vLumBufSize; i++) {
+ 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_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->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;
+ for (i = 0; i < c->vChrBufSize; i++) {
+ 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], dst_stride+16, fail);
- c->alpPixBuf[i] = c->alpPixBuf[i+c->vLumBufSize];
+ for (i = 0; i < c->vLumBufSize; i++) {
+ 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->chrUPixBuf[i], 64, dst_stride*2+1);
+ // try to avoid drawing green stuff between the right end and the stride end
+ 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_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?! ");
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 ||
+ 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 " : "",
+ dstFormat == PIX_FMT_BGR444BE || dstFormat == PIX_FMT_BGR444LE ?
+ "dithered " : "",
#else
"",
#endif
sws_format_name(dstFormat));
- 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");
+ 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",
+ av_log(c, AV_LOG_DEBUG,
+ "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
- av_log(c, AV_LOG_DEBUG, "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
- c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
+ av_log(c, AV_LOG_DEBUG,
+ "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
+ c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH,
+ c->chrXInc, c->chrYInc);
}
- c->swScale= ff_getSwsFunc(c);
+ c->swScale = ff_getSwsFunc(c);
return 0;
-fail: //FIXME replace things by appropriate error codes
+fail: // FIXME replace things by appropriate error codes
return -1;
}
#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)
+ int dstW, int dstH, enum PixelFormat dstFormat,
+ int flags, SwsFilter *srcFilter,
+ SwsFilter *dstFilter, const double *param)
{
SwsContext *c;
- if(!(c=sws_alloc_context()))
+ 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;
+ 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);
+ 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){
+ if (sws_init_context(c, srcFilter, dstFilter) < 0) {
sws_freeContext(c);
return NULL;
}
@@ -1143,28 +1276,28 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
float chromaHShift, float chromaVShift,
int verbose)
{
- SwsFilter *filter= av_malloc(sizeof(SwsFilter));
+ SwsFilter *filter = av_malloc(sizeof(SwsFilter));
if (!filter)
return NULL;
- if (lumaGBlur!=0.0) {
- filter->lumH= sws_getGaussianVec(lumaGBlur, 3.0);
- filter->lumV= sws_getGaussianVec(lumaGBlur, 3.0);
+ if (lumaGBlur != 0.0) {
+ filter->lumH = sws_getGaussianVec(lumaGBlur, 3.0);
+ filter->lumV = sws_getGaussianVec(lumaGBlur, 3.0);
} else {
- filter->lumH= sws_getIdentityVec();
- filter->lumV= sws_getIdentityVec();
+ filter->lumH = sws_getIdentityVec();
+ filter->lumV = sws_getIdentityVec();
}
- if (chromaGBlur!=0.0) {
- filter->chrH= sws_getGaussianVec(chromaGBlur, 3.0);
- filter->chrV= sws_getGaussianVec(chromaGBlur, 3.0);
+ if (chromaGBlur != 0.0) {
+ filter->chrH = sws_getGaussianVec(chromaGBlur, 3.0);
+ filter->chrV = sws_getGaussianVec(chromaGBlur, 3.0);
} else {
- filter->chrH= sws_getIdentityVec();
- filter->chrV= sws_getIdentityVec();
+ filter->chrH = sws_getIdentityVec();
+ filter->chrV = sws_getIdentityVec();
}
- if (chromaSharpen!=0.0) {
- SwsVector *id= sws_getIdentityVec();
+ if (chromaSharpen != 0.0) {
+ SwsVector *id = sws_getIdentityVec();
sws_scaleVec(filter->chrH, -chromaSharpen);
sws_scaleVec(filter->chrV, -chromaSharpen);
sws_addVec(filter->chrH, id);
@@ -1172,8 +1305,8 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
sws_freeVec(id);
}
- if (lumaSharpen!=0.0) {
- SwsVector *id= sws_getIdentityVec();
+ if (lumaSharpen != 0.0) {
+ SwsVector *id = sws_getIdentityVec();
sws_scaleVec(filter->lumH, -lumaSharpen);
sws_scaleVec(filter->lumV, -lumaSharpen);
sws_addVec(filter->lumH, id);
@@ -1182,18 +1315,20 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
}
if (chromaHShift != 0.0)
- sws_shiftVec(filter->chrH, (int)(chromaHShift+0.5));
+ sws_shiftVec(filter->chrH, (int)(chromaHShift + 0.5));
if (chromaVShift != 0.0)
- sws_shiftVec(filter->chrV, (int)(chromaVShift+0.5));
+ sws_shiftVec(filter->chrV, (int)(chromaVShift + 0.5));
sws_normalizeVec(filter->chrH, 1.0);
sws_normalizeVec(filter->chrV, 1.0);
sws_normalizeVec(filter->lumH, 1.0);
sws_normalizeVec(filter->lumV, 1.0);
- if (verbose) sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
- if (verbose) sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
+ if (verbose)
+ sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
+ if (verbose)
+ sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
return filter;
}
@@ -1212,17 +1347,18 @@ SwsVector *sws_allocVec(int length)
SwsVector *sws_getGaussianVec(double variance, double quality)
{
- const int length= (int)(variance*quality + 0.5) | 1;
+ const int length = (int)(variance * quality + 0.5) | 1;
int i;
- double middle= (length-1)*0.5;
- SwsVector *vec= sws_allocVec(length);
+ double middle = (length - 1) * 0.5;
+ SwsVector *vec = sws_allocVec(length);
if (!vec)
return NULL;
- for (i=0; i<length; i++) {
- double dist= i-middle;
- vec->coeff[i]= exp(-dist*dist/(2*variance*variance)) / sqrt(2*variance*M_PI);
+ for (i = 0; i < length; i++) {
+ double dist = i - middle;
+ vec->coeff[i] = exp(-dist * dist / (2 * variance * variance)) /
+ sqrt(2 * variance * M_PI);
}
sws_normalizeVec(vec, 1.0);
@@ -1233,13 +1369,13 @@ SwsVector *sws_getGaussianVec(double variance, double quality)
SwsVector *sws_getConstVec(double c, int length)
{
int i;
- SwsVector *vec= sws_allocVec(length);
+ SwsVector *vec = sws_allocVec(length);
if (!vec)
return NULL;
- for (i=0; i<length; i++)
- vec->coeff[i]= c;
+ for (i = 0; i < length; i++)
+ vec->coeff[i] = c;
return vec;
}
@@ -1252,10 +1388,10 @@ SwsVector *sws_getIdentityVec(void)
static double sws_dcVec(SwsVector *a)
{
int i;
- double sum=0;
+ double sum = 0;
- for (i=0; i<a->length; i++)
- sum+= a->coeff[i];
+ for (i = 0; i < a->length; i++)
+ sum += a->coeff[i];
return sum;
}
@@ -1264,27 +1400,27 @@ void sws_scaleVec(SwsVector *a, double scalar)
{
int i;
- for (i=0; i<a->length; i++)
- a->coeff[i]*= scalar;
+ for (i = 0; i < a->length; i++)
+ a->coeff[i] *= scalar;
}
void sws_normalizeVec(SwsVector *a, double height)
{
- sws_scaleVec(a, height/sws_dcVec(a));
+ sws_scaleVec(a, height / sws_dcVec(a));
}
static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b)
{
- int length= a->length + b->length - 1;
+ int length = a->length + b->length - 1;
int i, j;
- SwsVector *vec= sws_getConstVec(0.0, length);
+ SwsVector *vec = sws_getConstVec(0.0, length);
if (!vec)
return NULL;
- for (i=0; i<a->length; i++) {
- for (j=0; j<b->length; j++) {
- vec->coeff[i+j]+= a->coeff[i]*b->coeff[j];
+ for (i = 0; i < a->length; i++) {
+ for (j = 0; j < b->length; j++) {
+ vec->coeff[i + j] += a->coeff[i] * b->coeff[j];
}
}
@@ -1293,30 +1429,34 @@ static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b)
static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b)
{
- int length= FFMAX(a->length, b->length);
+ int length = FFMAX(a->length, b->length);
int i;
- SwsVector *vec= sws_getConstVec(0.0, length);
+ SwsVector *vec = sws_getConstVec(0.0, length);
if (!vec)
return NULL;
- for (i=0; i<a->length; i++) vec->coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
- for (i=0; i<b->length; i++) vec->coeff[i + (length-1)/2 - (b->length-1)/2]+= b->coeff[i];
+ for (i = 0; i < a->length; i++)
+ vec->coeff[i + (length - 1) / 2 - (a->length - 1) / 2] += a->coeff[i];
+ for (i = 0; i < b->length; i++)
+ vec->coeff[i + (length - 1) / 2 - (b->length - 1) / 2] += b->coeff[i];
return vec;
}
static SwsVector *sws_diffVec(SwsVector *a, SwsVector *b)
{
- int length= FFMAX(a->length, b->length);
+ int length = FFMAX(a->length, b->length);
int i;
- SwsVector *vec= sws_getConstVec(0.0, length);
+ SwsVector *vec = sws_getConstVec(0.0, length);
if (!vec)
return NULL;
- for (i=0; i<a->length; i++) vec->coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
- for (i=0; i<b->length; i++) vec->coeff[i + (length-1)/2 - (b->length-1)/2]-= b->coeff[i];
+ for (i = 0; i < a->length; i++)
+ vec->coeff[i + (length - 1) / 2 - (a->length - 1) / 2] += a->coeff[i];
+ for (i = 0; i < b->length; i++)
+ vec->coeff[i + (length - 1) / 2 - (b->length - 1) / 2] -= b->coeff[i];
return vec;
}
@@ -1324,15 +1464,16 @@ static SwsVector *sws_diffVec(SwsVector *a, SwsVector *b)
/* shift left / or right if "shift" is negative */
static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
{
- int length= a->length + FFABS(shift)*2;
+ int length = a->length + FFABS(shift) * 2;
int i;
- SwsVector *vec= sws_getConstVec(0.0, length);
+ SwsVector *vec = sws_getConstVec(0.0, length);
if (!vec)
return NULL;
- for (i=0; i<a->length; i++) {
- vec->coeff[i + (length-1)/2 - (a->length-1)/2 - shift]= a->coeff[i];
+ for (i = 0; i < a->length; i++) {
+ vec->coeff[i + (length - 1) / 2 -
+ (a->length - 1) / 2 - shift] = a->coeff[i];
}
return vec;
@@ -1340,49 +1481,50 @@ static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
void sws_shiftVec(SwsVector *a, int shift)
{
- SwsVector *shifted= sws_getShiftedVec(a, shift);
+ SwsVector *shifted = sws_getShiftedVec(a, shift);
av_free(a->coeff);
- a->coeff= shifted->coeff;
- a->length= shifted->length;
+ a->coeff = shifted->coeff;
+ a->length = shifted->length;
av_free(shifted);
}
void sws_addVec(SwsVector *a, SwsVector *b)
{
- SwsVector *sum= sws_sumVec(a, b);
+ SwsVector *sum = sws_sumVec(a, b);
av_free(a->coeff);
- a->coeff= sum->coeff;
- a->length= sum->length;
+ a->coeff = sum->coeff;
+ a->length = sum->length;
av_free(sum);
}
void sws_subVec(SwsVector *a, SwsVector *b)
{
- SwsVector *diff= sws_diffVec(a, b);
+ SwsVector *diff = sws_diffVec(a, b);
av_free(a->coeff);
- a->coeff= diff->coeff;
- a->length= diff->length;
+ a->coeff = diff->coeff;
+ a->length = diff->length;
av_free(diff);
}
void sws_convVec(SwsVector *a, SwsVector *b)
{
- SwsVector *conv= sws_getConvVec(a, b);
+ SwsVector *conv = sws_getConvVec(a, b);
av_free(a->coeff);
- a->coeff= conv->coeff;
- a->length= conv->length;
+ a->coeff = conv->coeff;
+ a->length = conv->length;
av_free(conv);
}
SwsVector *sws_cloneVec(SwsVector *a)
{
int i;
- SwsVector *vec= sws_allocVec(a->length);
+ SwsVector *vec = sws_allocVec(a->length);
if (!vec)
return NULL;
- for (i=0; i<a->length; i++) vec->coeff[i]= a->coeff[i];
+ for (i = 0; i < a->length; i++)
+ vec->coeff[i] = a->coeff[i];
return vec;
}
@@ -1390,65 +1532,75 @@ SwsVector *sws_cloneVec(SwsVector *a)
void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
{
int i;
- double max=0;
- double min=0;
+ double max = 0;
+ double min = 0;
double range;
- for (i=0; i<a->length; i++)
- if (a->coeff[i]>max) max= a->coeff[i];
+ for (i = 0; i < a->length; i++)
+ if (a->coeff[i] > max)
+ max = a->coeff[i];
- for (i=0; i<a->length; i++)
- if (a->coeff[i]<min) min= a->coeff[i];
+ for (i = 0; i < a->length; i++)
+ if (a->coeff[i] < min)
+ min = a->coeff[i];
- range= max - min;
+ range = max - min;
- for (i=0; i<a->length; i++) {
- int x= (int)((a->coeff[i]-min)*60.0/range +0.5);
+ for (i = 0; i < a->length; i++) {
+ int x = (int)((a->coeff[i] - min) * 60.0 / range + 0.5);
av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
- for (;x>0; x--) av_log(log_ctx, log_level, " ");
+ for (; x > 0; x--)
+ av_log(log_ctx, log_level, " ");
av_log(log_ctx, log_level, "|\n");
}
}
void sws_freeVec(SwsVector *a)
{
- if (!a) return;
+ if (!a)
+ return;
av_freep(&a->coeff);
- a->length=0;
+ a->length = 0;
av_free(a);
}
void sws_freeFilter(SwsFilter *filter)
{
- if (!filter) return;
-
- if (filter->lumH) sws_freeVec(filter->lumH);
- if (filter->lumV) sws_freeVec(filter->lumV);
- if (filter->chrH) sws_freeVec(filter->chrH);
- if (filter->chrV) sws_freeVec(filter->chrV);
+ if (!filter)
+ return;
+
+ if (filter->lumH)
+ sws_freeVec(filter->lumH);
+ if (filter->lumV)
+ sws_freeVec(filter->lumV);
+ if (filter->chrH)
+ sws_freeVec(filter->chrH);
+ if (filter->chrV)
+ sws_freeVec(filter->chrV);
av_free(filter);
}
void sws_freeContext(SwsContext *c)
{
int i;
- if (!c) return;
+ if (!c)
+ return;
if (c->lumPixBuf) {
- for (i=0; i<c->vLumBufSize; i++)
+ for (i = 0; i < c->vLumBufSize; i++)
av_freep(&c->lumPixBuf[i]);
av_freep(&c->lumPixBuf);
}
if (c->chrUPixBuf) {
- for (i=0; i<c->vChrBufSize; i++)
+ for (i = 0; i < c->vChrBufSize; i++)
av_freep(&c->chrUPixBuf[i]);
av_freep(&c->chrUPixBuf);
av_freep(&c->chrVPixBuf);
}
if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
- for (i=0; i<c->vLumBufSize; i++)
+ for (i = 0; i < c->vLumBufSize; i++)
av_freep(&c->alpPixBuf[i]);
av_freep(&c->alpPixBuf);
}
@@ -1469,17 +1621,21 @@ void sws_freeContext(SwsContext *c)
#if HAVE_MMX
#ifdef MAP_ANONYMOUS
- if (c->lumMmx2FilterCode) munmap(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize);
- if (c->chrMmx2FilterCode) munmap(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize);
+ 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, 0, MEM_RELEASE);
- if (c->chrMmx2FilterCode) VirtualFree(c->chrMmx2FilterCode, 0, 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;
+ c->lumMmx2FilterCode = NULL;
+ c->chrMmx2FilterCode = NULL;
#endif /* HAVE_MMX */
av_freep(&c->yuvTable);
@@ -1488,12 +1644,16 @@ void sws_freeContext(SwsContext *c)
av_free(c);
}
-struct SwsContext *sws_getCachedContext(struct SwsContext *context,
- int srcW, int srcH, enum PixelFormat srcFormat,
- int dstW, int dstH, enum PixelFormat dstFormat, int flags,
- SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
+struct SwsContext *sws_getCachedContext(struct SwsContext *context, int srcW,
+ int srcH, enum PixelFormat srcFormat,
+ int dstW, int dstH,
+ enum PixelFormat dstFormat, int flags,
+ SwsFilter *srcFilter,
+ SwsFilter *dstFilter,
+ const double *param)
{
- static const double default_param[2] = {SWS_PARAM_DEFAULT, SWS_PARAM_DEFAULT};
+ static const double default_param[2] = { SWS_PARAM_DEFAULT,
+ SWS_PARAM_DEFAULT };
if (!param)
param = default_param;
@@ -1526,7 +1686,10 @@ struct SwsContext *sws_getCachedContext(struct SwsContext *context,
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);
+ 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;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 11:37:16 +0000