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Remove old scaler.

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Originally committed as revision 17786 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-03-03 22:51:30 +00:00
parent 1ad1eaadd6
commit 6d4f53cbac
10 changed files with 2 additions and 3400 deletions
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12
Makefile
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@ -20,9 +20,8 @@ ALLMANPAGES = $(addsuffix .1, $(BASENAMES))
FFLIBS-$(CONFIG_AVFILTER) += avfilter
FFLIBS-$(CONFIG_POSTPROC) += postproc
FFLIBS-$(CONFIG_SWSCALE) += swscale
FFLIBS := avdevice avformat avcodec avutil
FFLIBS := avdevice avformat avcodec avutil swscale
DATA_FILES := $(wildcard $(SRC_DIR)/ffpresets/*.ffpreset)
@ -236,15 +235,6 @@ LAVF_REG = tests/data/lavf.regression
ROTOZOOM_REG = tests/data/rotozoom.regression
VSYNTH_REG = tests/data/vsynth.regression
ifneq ($(CONFIG_SWSCALE),yes)
servertest codectest $(CODEC_TESTS) libavtest: swscale-error
swscale-error:
@echo
@echo "This regression test requires --enable-swscale."
@echo
@exit 1
endif
ifneq ($(CONFIG_ZLIB),yes)
regtest-flashsv codectest: zlib-error
endif

2
cmdutils.c
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@ -280,9 +280,7 @@ static void print_all_lib_versions(FILE* outstream, int indent)
#if CONFIG_AVFILTER
PRINT_LIB_VERSION(outstream, avfilter, AVFILTER, indent);
#endif
#if CONFIG_SWSCALE
PRINT_LIB_VERSION(outstream, swscale, SWSCALE, indent);
#endif
#if CONFIG_POSTPROC
PRINT_LIB_VERSION(outstream, postproc, POSTPROC, indent);
#endif

14
configure vendored
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@ -81,7 +81,6 @@ show_help(){
echo " --disable-ffplay disable ffplay build"
echo " --disable-ffserver disable ffserver build"
echo " --enable-postproc enable GPLed postprocessing support [no]"
echo " --enable-swscale enable GPLed software scaler support [no]"
echo " --enable-avfilter video filter support [no]"
echo " --enable-avfilter-lavf video filters dependent on avformat [no]"
echo " --enable-beosthreads use BeOS threads [no]"
@ -796,7 +795,6 @@ CONFIG_LIST="
shared
small
static
swscale
vdpau
x11grab
zlib
@ -912,7 +910,6 @@ HAVE_LIST="
# options emitted with CONFIG_ prefix but not available on command line
CONFIG_EXTRA="
oldscaler
"
CMDLINE_SELECT="
@ -980,9 +977,6 @@ sse_deps="mmx"
ssse3_deps="sse"
vis_deps="sparc"
# common features
oldscaler_deps="!swscale"
# decoders / encoders
aac_decoder_select="fft mdct"
ac3_decoder_deps="gpl"
@ -1170,7 +1164,6 @@ enable ffserver
enable ipv6
enable mpegaudio_hp
enable network
enable oldscaler
enable optimizations
enable protocols
enable static
@ -1691,7 +1684,6 @@ if ! enabled gpl; then
die_gpl_disabled "libxvidcore" libxvid
die_gpl_disabled "FAAD2" libfaad2
die_gpl_disabled "The X11 grabber" x11grab
die_gpl_disabled "The software scaler" swscale
fi
if ! enabled nonfree && enabled_any libamr_nb libamr_wb; then
@ -2265,7 +2257,6 @@ echo "optimizations ${optimizations-no}"
echo "static ${static-no}"
echo "shared ${shared-no}"
echo "postprocessing support ${postproc-no}"
echo "software scaler enabled ${swscale-no}"
echo "new filter support ${avfilter-no}"
echo "filters using lavformat ${avfilter_lavf-no}"
echo "network support ${network-no}"
@ -2549,9 +2540,4 @@ enabled avfilter &&
pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
enabled postproc &&
pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
if enabled swscale; then
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
else
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavcodec = $LIBAVCODEC_VERSION"
apply libswscale/libswscale.pc sed s/^Libs:.*$/Libs:/
fi

3
libavcodec/Makefile
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@ -29,7 +29,6 @@ OBJS-$(CONFIG_ENCODERS) += faandct.o jfdctfst.o jfdctint.o
OBJS-$(CONFIG_FFT) += fft.o
OBJS-$(CONFIG_GOLOMB) += golomb.o
OBJS-$(CONFIG_MDCT) += mdct.o
OBJS-$(CONFIG_OLDSCALER) += imgresample.o
OBJS-$(CONFIG_RDFT) += rdft.o
# decoders/encoders
@ -494,7 +493,6 @@ OBJS-$(ARCH_BFIN) += bfin/dsputil_bfin.o \
OBJS-$(ARCH_PPC) += ppc/dsputil_ppc.o \
ALTIVEC-OBJS-$(CONFIG_H264_DECODER) += ppc/h264_altivec.o
ALTIVEC-OBJS-$(CONFIG_OLDSCALER) += ppc/imgresample_altivec.o
ALTIVEC-OBJS-$(CONFIG_SNOW_DECODER) += ppc/snow_altivec.o
ALTIVEC-OBJS-$(CONFIG_VC1_DECODER) += ppc/vc1dsp_altivec.o
ALTIVEC-OBJS-$(CONFIG_WMV3_DECODER) += ppc/vc1dsp_altivec.o
@ -525,7 +523,6 @@ OBJS-$(HAVE_VIS) += sparc/dsputil_vis.o \
TESTS = $(addsuffix -test$(EXESUF), cabac dct eval fft h264 rangecoder snow)
TESTS-$(CONFIG_OLDSCALER) += imgresample-test$(EXESUF)
TESTS-$(ARCH_X86) += x86/cpuid-test$(EXESUF) motion-test$(EXESUF)
CLEANFILES = apiexample$(EXESUF)

1492
libavcodec/imgconvert.c
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File diff suppressed because it is too large Load Diff

875
libavcodec/imgconvert_template.c
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@ -1,875 +0,0 @@
/*
* templates for image conversion routines
* Copyright (c) 2001, 2002, 2003 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef RGB_OUT
#define RGB_OUT(d, r, g, b) RGBA_OUT(d, r, g, b, 0xff)
#endif
static void glue(yuv420p_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const uint8_t *y1_ptr, *y2_ptr, *cb_ptr, *cr_ptr;
uint8_t *d, *d1, *d2;
int w, y, cb, cr, r_add, g_add, b_add, width2;
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
unsigned int r, g, b;
d = dst->data[0];
y1_ptr = src->data[0];
cb_ptr = src->data[1];
cr_ptr = src->data[2];
width2 = (width + 1) >> 1;
for(;height >= 2; height -= 2) {
d1 = d;
d2 = d + dst->linesize[0];
y2_ptr = y1_ptr + src->linesize[0];
for(w = width; w >= 2; w -= 2) {
YUV_TO_RGB1_CCIR(cb_ptr[0], cr_ptr[0]);
/* output 4 pixels */
YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[0]);
RGB_OUT(d1, r, g, b);
YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[1]);
RGB_OUT(d1 + BPP, r, g, b);
YUV_TO_RGB2_CCIR(r, g, b, y2_ptr[0]);
RGB_OUT(d2, r, g, b);
YUV_TO_RGB2_CCIR(r, g, b, y2_ptr[1]);
RGB_OUT(d2 + BPP, r, g, b);
d1 += 2 * BPP;
d2 += 2 * BPP;
y1_ptr += 2;
y2_ptr += 2;
cb_ptr++;
cr_ptr++;
}
/* handle odd width */
if (w) {
YUV_TO_RGB1_CCIR(cb_ptr[0], cr_ptr[0]);
YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[0]);
RGB_OUT(d1, r, g, b);
YUV_TO_RGB2_CCIR(r, g, b, y2_ptr[0]);
RGB_OUT(d2, r, g, b);
d1 += BPP;
d2 += BPP;
y1_ptr++;
y2_ptr++;
cb_ptr++;
cr_ptr++;
}
d += 2 * dst->linesize[0];
y1_ptr += 2 * src->linesize[0] - width;
cb_ptr += src->linesize[1] - width2;
cr_ptr += src->linesize[2] - width2;
}
/* handle odd height */
if (height) {
d1 = d;
for(w = width; w >= 2; w -= 2) {
YUV_TO_RGB1_CCIR(cb_ptr[0], cr_ptr[0]);
/* output 2 pixels */
YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[0]);
RGB_OUT(d1, r, g, b);
YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[1]);
RGB_OUT(d1 + BPP, r, g, b);
d1 += 2 * BPP;
y1_ptr += 2;
cb_ptr++;
cr_ptr++;
}
/* handle width */
if (w) {
YUV_TO_RGB1_CCIR(cb_ptr[0], cr_ptr[0]);
/* output 2 pixels */
YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[0]);
RGB_OUT(d1, r, g, b);
d1 += BPP;
y1_ptr++;
cb_ptr++;
cr_ptr++;
}
}
}
static void glue(yuvj420p_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const uint8_t *y1_ptr, *y2_ptr, *cb_ptr, *cr_ptr;
uint8_t *d, *d1, *d2;
int w, y, cb, cr, r_add, g_add, b_add, width2;
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
unsigned int r, g, b;
d = dst->data[0];
y1_ptr = src->data[0];
cb_ptr = src->data[1];
cr_ptr = src->data[2];
width2 = (width + 1) >> 1;
for(;height >= 2; height -= 2) {
d1 = d;
d2 = d + dst->linesize[0];
y2_ptr = y1_ptr + src->linesize[0];
for(w = width; w >= 2; w -= 2) {
YUV_TO_RGB1(cb_ptr[0], cr_ptr[0]);
/* output 4 pixels */
YUV_TO_RGB2(r, g, b, y1_ptr[0]);
RGB_OUT(d1, r, g, b);
YUV_TO_RGB2(r, g, b, y1_ptr[1]);
RGB_OUT(d1 + BPP, r, g, b);
YUV_TO_RGB2(r, g, b, y2_ptr[0]);
RGB_OUT(d2, r, g, b);
YUV_TO_RGB2(r, g, b, y2_ptr[1]);
RGB_OUT(d2 + BPP, r, g, b);
d1 += 2 * BPP;
d2 += 2 * BPP;
y1_ptr += 2;
y2_ptr += 2;
cb_ptr++;
cr_ptr++;
}
/* handle odd width */
if (w) {
YUV_TO_RGB1(cb_ptr[0], cr_ptr[0]);
YUV_TO_RGB2(r, g, b, y1_ptr[0]);
RGB_OUT(d1, r, g, b);
YUV_TO_RGB2(r, g, b, y2_ptr[0]);
RGB_OUT(d2, r, g, b);
d1 += BPP;
d2 += BPP;
y1_ptr++;
y2_ptr++;
cb_ptr++;
cr_ptr++;
}
d += 2 * dst->linesize[0];
y1_ptr += 2 * src->linesize[0] - width;
cb_ptr += src->linesize[1] - width2;
cr_ptr += src->linesize[2] - width2;
}
/* handle odd height */
if (height) {
d1 = d;
for(w = width; w >= 2; w -= 2) {
YUV_TO_RGB1(cb_ptr[0], cr_ptr[0]);
/* output 2 pixels */
YUV_TO_RGB2(r, g, b, y1_ptr[0]);
RGB_OUT(d1, r, g, b);
YUV_TO_RGB2(r, g, b, y1_ptr[1]);
RGB_OUT(d1 + BPP, r, g, b);
d1 += 2 * BPP;
y1_ptr += 2;
cb_ptr++;
cr_ptr++;
}
/* handle width */
if (w) {
YUV_TO_RGB1(cb_ptr[0], cr_ptr[0]);
/* output 2 pixels */
YUV_TO_RGB2(r, g, b, y1_ptr[0]);
RGB_OUT(d1, r, g, b);
d1 += BPP;
y1_ptr++;
cb_ptr++;
cr_ptr++;
}
}
}
static void glue(RGB_NAME, _to_yuv420p)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
int wrap, wrap3, width2;
int r, g, b, r1, g1, b1, w;
uint8_t *lum, *cb, *cr;
const uint8_t *p;
lum = dst->data[0];
cb = dst->data[1];
cr = dst->data[2];
width2 = (width + 1) >> 1;
wrap = dst->linesize[0];
wrap3 = src->linesize[0];
p = src->data[0];
for(;height>=2;height -= 2) {
for(w = width; w >= 2; w -= 2) {
RGB_IN(r, g, b, p);
r1 = r;
g1 = g;
b1 = b;
lum[0] = RGB_TO_Y_CCIR(r, g, b);
RGB_IN(r, g, b, p + BPP);
r1 += r;
g1 += g;
b1 += b;
lum[1] = RGB_TO_Y_CCIR(r, g, b);
p += wrap3;
lum += wrap;
RGB_IN(r, g, b, p);
r1 += r;
g1 += g;
b1 += b;
lum[0] = RGB_TO_Y_CCIR(r, g, b);
RGB_IN(r, g, b, p + BPP);
r1 += r;
g1 += g;
b1 += b;
lum[1] = RGB_TO_Y_CCIR(r, g, b);
cb[0] = RGB_TO_U_CCIR(r1, g1, b1, 2);
cr[0] = RGB_TO_V_CCIR(r1, g1, b1, 2);
cb++;
cr++;
p += -wrap3 + 2 * BPP;
lum += -wrap + 2;
}
if (w) {
RGB_IN(r, g, b, p);
r1 = r;
g1 = g;
b1 = b;
lum[0] = RGB_TO_Y_CCIR(r, g, b);
p += wrap3;
lum += wrap;
RGB_IN(r, g, b, p);
r1 += r;
g1 += g;
b1 += b;
lum[0] = RGB_TO_Y_CCIR(r, g, b);
cb[0] = RGB_TO_U_CCIR(r1, g1, b1, 1);
cr[0] = RGB_TO_V_CCIR(r1, g1, b1, 1);
cb++;
cr++;
p += -wrap3 + BPP;
lum += -wrap + 1;
}
p += wrap3 + (wrap3 - width * BPP);
lum += wrap + (wrap - width);
cb += dst->linesize[1] - width2;
cr += dst->linesize[2] - width2;
}
/* handle odd height */
if (height) {
for(w = width; w >= 2; w -= 2) {
RGB_IN(r, g, b, p);
r1 = r;
g1 = g;
b1 = b;
lum[0] = RGB_TO_Y_CCIR(r, g, b);
RGB_IN(r, g, b, p + BPP);
r1 += r;
g1 += g;
b1 += b;
lum[1] = RGB_TO_Y_CCIR(r, g, b);
cb[0] = RGB_TO_U_CCIR(r1, g1, b1, 1);
cr[0] = RGB_TO_V_CCIR(r1, g1, b1, 1);
cb++;
cr++;
p += 2 * BPP;
lum += 2;
}
if (w) {
RGB_IN(r, g, b, p);
lum[0] = RGB_TO_Y_CCIR(r, g, b);
cb[0] = RGB_TO_U_CCIR(r, g, b, 0);
cr[0] = RGB_TO_V_CCIR(r, g, b, 0);
}
}
}
static void glue(RGB_NAME, _to_gray)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const unsigned char *p;
unsigned char *q;
int r, g, b, dst_wrap, src_wrap;
int x, y;
p = src->data[0];
src_wrap = src->linesize[0] - BPP * width;
q = dst->data[0];
dst_wrap = dst->linesize[0] - width;
for(y=0;y<height;y++) {
for(x=0;x<width;x++) {
RGB_IN(r, g, b, p);
q[0] = RGB_TO_Y(r, g, b);
q++;
p += BPP;
}
p += src_wrap;
q += dst_wrap;
}
}
static void glue(gray_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const unsigned char *p;
unsigned char *q;
int r, dst_wrap, src_wrap;
int x, y;
p = src->data[0];
src_wrap = src->linesize[0] - width;
q = dst->data[0];
dst_wrap = dst->linesize[0] - BPP * width;
for(y=0;y<height;y++) {
for(x=0;x<width;x++) {
r = p[0];
RGB_OUT(q, r, r, r);
q += BPP;
p ++;
}
p += src_wrap;
q += dst_wrap;
}
}
static void glue(pal8_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const unsigned char *p;
unsigned char *q;
int r, g, b, dst_wrap, src_wrap;
int x, y;
uint32_t v;
const uint32_t *palette;
p = src->data[0];
src_wrap = src->linesize[0] - width;
palette = (uint32_t *)src->data[1];
q = dst->data[0];
dst_wrap = dst->linesize[0] - BPP * width;
for(y=0;y<height;y++) {
for(x=0;x<width;x++) {
v = palette[p[0]];
r = (v >> 16) & 0xff;
g = (v >> 8) & 0xff;
b = (v) & 0xff;
#ifdef RGBA_OUT
{
int a;
a = (v >> 24) & 0xff;
RGBA_OUT(q, r, g, b, a);
}
#else
RGB_OUT(q, r, g, b);
#endif
q += BPP;
p ++;
}
p += src_wrap;
q += dst_wrap;
}
}
// RGB24 has optimized routines
#if !defined(FMT_RGB32) && !defined(FMT_RGB24)
/* alpha support */
static void glue(rgb32_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const uint8_t *s;
uint8_t *d;
int src_wrap, dst_wrap, j, y;
unsigned int v, r, g, b;
#ifdef RGBA_OUT
unsigned int a;
#endif
s = src->data[0];
src_wrap = src->linesize[0] - width * 4;
d = dst->data[0];
dst_wrap = dst->linesize[0] - width * BPP;
for(y=0;y<height;y++) {
for(j = 0;j < width; j++) {
v = ((const uint32_t *)(s))[0];
r = (v >> 16) & 0xff;
g = (v >> 8) & 0xff;
b = v & 0xff;
#ifdef RGBA_OUT
a = (v >> 24) & 0xff;
RGBA_OUT(d, r, g, b, a);
#else
RGB_OUT(d, r, g, b);
#endif
s += 4;
d += BPP;
}
s += src_wrap;
d += dst_wrap;
}
}
static void glue(RGB_NAME, _to_rgb32)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const uint8_t *s;
uint8_t *d;
int src_wrap, dst_wrap, j, y;
unsigned int r, g, b;
#ifdef RGBA_IN
unsigned int a;
#endif
s = src->data[0];
src_wrap = src->linesize[0] - width * BPP;
d = dst->data[0];
dst_wrap = dst->linesize[0] - width * 4;
for(y=0;y<height;y++) {
for(j = 0;j < width; j++) {
#ifdef RGBA_IN
RGBA_IN(r, g, b, a, s);
((uint32_t *)(d))[0] = (a << 24) | (r << 16) | (g << 8) | b;
#else
RGB_IN(r, g, b, s);
((uint32_t *)(d))[0] = (0xff << 24) | (r << 16) | (g << 8) | b;
#endif
d += 4;
s += BPP;
}
s += src_wrap;
d += dst_wrap;
}
}
#endif /* !defined(FMT_RGB32) */
#ifndef FMT_RGB24
static void glue(rgb24_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const uint8_t *s;
uint8_t *d;
int src_wrap, dst_wrap, j, y;
unsigned int r, g, b;
s = src->data[0];
src_wrap = src->linesize[0] - width * 3;
d = dst->data[0];
dst_wrap = dst->linesize[0] - width * BPP;
for(y=0;y<height;y++) {
for(j = 0;j < width; j++) {
r = s[0];
g = s[1];
b = s[2];
RGB_OUT(d, r, g, b);
s += 3;
d += BPP;
}
s += src_wrap;
d += dst_wrap;
}
}
static void glue(RGB_NAME, _to_rgb24)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const uint8_t *s;
uint8_t *d;
int src_wrap, dst_wrap, j, y;
unsigned int r, g , b;
s = src->data[0];
src_wrap = src->linesize[0] - width * BPP;
d = dst->data[0];
dst_wrap = dst->linesize[0] - width * 3;
for(y=0;y<height;y++) {
for(j = 0;j < width; j++) {
RGB_IN(r, g, b, s)
d[0] = r;
d[1] = g;
d[2] = b;
d += 3;
s += BPP;
}
s += src_wrap;
d += dst_wrap;
}
}
#endif /* !FMT_RGB24 */
#ifdef FMT_RGB24
static void yuv444p_to_rgb24(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const uint8_t *y1_ptr, *cb_ptr, *cr_ptr;
uint8_t *d, *d1;
int w, y, cb, cr, r_add, g_add, b_add;
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
unsigned int r, g, b;
d = dst->data[0];
y1_ptr = src->data[0];
cb_ptr = src->data[1];
cr_ptr = src->data[2];
for(;height > 0; height --) {
d1 = d;
for(w = width; w > 0; w--) {
YUV_TO_RGB1_CCIR(cb_ptr[0], cr_ptr[0]);
YUV_TO_RGB2_CCIR(r, g, b, y1_ptr[0]);
RGB_OUT(d1, r, g, b);
d1 += BPP;
y1_ptr++;
cb_ptr++;
cr_ptr++;
}
d += dst->linesize[0];
y1_ptr += src->linesize[0] - width;
cb_ptr += src->linesize[1] - width;
cr_ptr += src->linesize[2] - width;
}
}
static void yuvj444p_to_rgb24(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const uint8_t *y1_ptr, *cb_ptr, *cr_ptr;
uint8_t *d, *d1;
int w, y, cb, cr, r_add, g_add, b_add;
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
unsigned int r, g, b;
d = dst->data[0];
y1_ptr = src->data[0];
cb_ptr = src->data[1];
cr_ptr = src->data[2];
for(;height > 0; height --) {
d1 = d;
for(w = width; w > 0; w--) {
YUV_TO_RGB1(cb_ptr[0], cr_ptr[0]);
YUV_TO_RGB2(r, g, b, y1_ptr[0]);
RGB_OUT(d1, r, g, b);
d1 += BPP;
y1_ptr++;
cb_ptr++;
cr_ptr++;
}
d += dst->linesize[0];
y1_ptr += src->linesize[0] - width;
cb_ptr += src->linesize[1] - width;
cr_ptr += src->linesize[2] - width;
}
}
static void rgb24_to_yuv444p(AVPicture *dst, const AVPicture *src,
int width, int height)
{
int src_wrap, x, y;
int r, g, b;
uint8_t *lum, *cb, *cr;
const uint8_t *p;
lum = dst->data[0];
cb = dst->data[1];
cr = dst->data[2];
src_wrap = src->linesize[0] - width * BPP;
p = src->data[0];
for(y=0;y<height;y++) {
for(x=0;x<width;x++) {
RGB_IN(r, g, b, p);
lum[0] = RGB_TO_Y_CCIR(r, g, b);
cb[0] = RGB_TO_U_CCIR(r, g, b, 0);
cr[0] = RGB_TO_V_CCIR(r, g, b, 0);
p += BPP;
cb++;
cr++;
lum++;
}
p += src_wrap;
lum += dst->linesize[0] - width;
cb += dst->linesize[1] - width;
cr += dst->linesize[2] - width;
}
}
static void rgb24_to_yuvj420p(AVPicture *dst, const AVPicture *src,
int width, int height)
{
int wrap, wrap3, width2;
int r, g, b, r1, g1, b1, w;
uint8_t *lum, *cb, *cr;
const uint8_t *p;
lum = dst->data[0];
cb = dst->data[1];
cr = dst->data[2];
width2 = (width + 1) >> 1;
wrap = dst->linesize[0];
wrap3 = src->linesize[0];
p = src->data[0];
for(;height>=2;height -= 2) {
for(w = width; w >= 2; w -= 2) {
RGB_IN(r, g, b, p);
r1 = r;
g1 = g;
b1 = b;
lum[0] = RGB_TO_Y(r, g, b);
RGB_IN(r, g, b, p + BPP);
r1 += r;
g1 += g;
b1 += b;
lum[1] = RGB_TO_Y(r, g, b);
p += wrap3;
lum += wrap;
RGB_IN(r, g, b, p);
r1 += r;
g1 += g;
b1 += b;
lum[0] = RGB_TO_Y(r, g, b);
RGB_IN(r, g, b, p + BPP);
r1 += r;
g1 += g;
b1 += b;
lum[1] = RGB_TO_Y(r, g, b);
cb[0] = RGB_TO_U(r1, g1, b1, 2);
cr[0] = RGB_TO_V(r1, g1, b1, 2);
cb++;
cr++;
p += -wrap3 + 2 * BPP;
lum += -wrap + 2;
}
if (w) {
RGB_IN(r, g, b, p);
r1 = r;
g1 = g;
b1 = b;
lum[0] = RGB_TO_Y(r, g, b);
p += wrap3;
lum += wrap;
RGB_IN(r, g, b, p);
r1 += r;
g1 += g;
b1 += b;
lum[0] = RGB_TO_Y(r, g, b);
cb[0] = RGB_TO_U(r1, g1, b1, 1);
cr[0] = RGB_TO_V(r1, g1, b1, 1);
cb++;
cr++;
p += -wrap3 + BPP;
lum += -wrap + 1;
}
p += wrap3 + (wrap3 - width * BPP);
lum += wrap + (wrap - width);
cb += dst->linesize[1] - width2;
cr += dst->linesize[2] - width2;
}
/* handle odd height */
if (height) {
for(w = width; w >= 2; w -= 2) {
RGB_IN(r, g, b, p);
r1 = r;
g1 = g;
b1 = b;
lum[0] = RGB_TO_Y(r, g, b);
RGB_IN(r, g, b, p + BPP);
r1 += r;
g1 += g;
b1 += b;
lum[1] = RGB_TO_Y(r, g, b);
cb[0] = RGB_TO_U(r1, g1, b1, 1);
cr[0] = RGB_TO_V(r1, g1, b1, 1);
cb++;
cr++;
p += 2 * BPP;
lum += 2;
}
if (w) {
RGB_IN(r, g, b, p);
lum[0] = RGB_TO_Y(r, g, b);
cb[0] = RGB_TO_U(r, g, b, 0);
cr[0] = RGB_TO_V(r, g, b, 0);
}
}
}
static void rgb24_to_yuvj444p(AVPicture *dst, const AVPicture *src,
int width, int height)
{
int src_wrap, x, y;
int r, g, b;
uint8_t *lum, *cb, *cr;
const uint8_t *p;
lum = dst->data[0];
cb = dst->data[1];
cr = dst->data[2];
src_wrap = src->linesize[0] - width * BPP;
p = src->data[0];
for(y=0;y<height;y++) {
for(x=0;x<width;x++) {
RGB_IN(r, g, b, p);
lum[0] = RGB_TO_Y(r, g, b);
cb[0] = RGB_TO_U(r, g, b, 0);
cr[0] = RGB_TO_V(r, g, b, 0);
p += BPP;
cb++;
cr++;
lum++;
}
p += src_wrap;
lum += dst->linesize[0] - width;
cb += dst->linesize[1] - width;
cr += dst->linesize[2] - width;
}
}
#endif /* FMT_RGB24 */
#if defined(FMT_RGB24) || defined(FMT_RGB32)
static void glue(RGB_NAME, _to_pal8)(AVPicture *dst, const AVPicture *src,
int width, int height)
{
const unsigned char *p;
unsigned char *q;
int dst_wrap, src_wrap;
int x, y, has_alpha;
unsigned int r, g, b;
p = src->data[0];
src_wrap = src->linesize[0] - BPP * width;
q = dst->data[0];
dst_wrap = dst->linesize[0] - width;
has_alpha = 0;
for(y=0;y<height;y++) {
for(x=0;x<width;x++) {
#ifdef RGBA_IN
{
unsigned int a;
RGBA_IN(r, g, b, a, p);
/* crude approximation for alpha ! */
if (a < 0x80) {
has_alpha = 1;
q[0] = TRANSP_INDEX;
} else {
q[0] = gif_clut_index(r, g, b);
}
}
#else
RGB_IN(r, g, b, p);
q[0] = gif_clut_index(r, g, b);
#endif
q++;
p += BPP;
}
p += src_wrap;
q += dst_wrap;
}
build_rgb_palette(dst->data[1], has_alpha);
}
#endif /* defined(FMT_RGB24) || defined(FMT_RGB32) */
#ifdef RGBA_IN
static int glue(get_alpha_info_, RGB_NAME)(const AVPicture *src,
int width, int height)
{
const unsigned char *p;
int src_wrap, ret, x, y;
unsigned int r, g, b, a;
p = src->data[0];
src_wrap = src->linesize[0] - BPP * width;
ret = 0;
for(y=0;y<height;y++) {
for(x=0;x<width;x++) {
RGBA_IN(r, g, b, a, p);
if (a == 0x00) {
ret |= FF_ALPHA_TRANSP;
} else if (a != 0xff) {
ret |= FF_ALPHA_SEMI_TRANSP;
}
p += BPP;
}
p += src_wrap;
}
return ret;
}
#endif /* RGBA_IN */
#undef RGB_IN
#undef RGBA_IN
#undef RGB_OUT
#undef RGBA_OUT
#undef BPP
#undef RGB_NAME
#undef FMT_RGB24
#undef FMT_RGB32

833
libavcodec/imgresample.c
View File

@ -1,833 +0,0 @@
/*
* High quality image resampling with polyphase filters
* Copyright (c) 2001 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file libavcodec/imgresample.c
* High quality image resampling with polyphase filters .
*
* WARNING: This file is deprecated and will be removed after FFmpeg 0.5
* release, do not lose your time improving it!
*/
#include "avcodec.h"
#include "dsputil.h"
#include "imgconvert.h"
#include "libswscale/swscale.h"
#if HAVE_ALTIVEC
#include "ppc/imgresample_altivec.h"
#endif
#define NB_COMPONENTS 3
#define PHASE_BITS 4
#define NB_PHASES (1 << PHASE_BITS)
#define NB_TAPS 4
#define FCENTER 1 /* index of the center of the filter */
//#define TEST 1 /* Test it */
#define POS_FRAC_BITS 16
#define POS_FRAC (1 << POS_FRAC_BITS)
/* 6 bits precision is needed for MMX */
#define FILTER_BITS 8
#define LINE_BUF_HEIGHT (NB_TAPS * 4)
struct SwsContext {
const AVClass *av_class;
struct ImgReSampleContext *resampling_ctx;
enum PixelFormat src_pix_fmt, dst_pix_fmt;
};
typedef struct ImgReSampleContext {
int iwidth, iheight, owidth, oheight;
int topBand, bottomBand, leftBand, rightBand;
int padtop, padbottom, padleft, padright;
int pad_owidth, pad_oheight;
int h_incr, v_incr;
DECLARE_ALIGNED_8(int16_t, h_filters[NB_PHASES][NB_TAPS]); /* horizontal filters */
DECLARE_ALIGNED_8(int16_t, v_filters[NB_PHASES][NB_TAPS]); /* vertical filters */
uint8_t *line_buf;
} ImgReSampleContext;
void av_build_filter(int16_t *filter, double factor, int tap_count, int phase_count, int scale, int type);
static inline int get_phase(int pos)
{
return ((pos) >> (POS_FRAC_BITS - PHASE_BITS)) & ((1 << PHASE_BITS) - 1);
}
/* This function must be optimized */
static void h_resample_fast(uint8_t *dst, int dst_width, const uint8_t *src,
int src_width, int src_start, int src_incr,
int16_t *filters)
{
int src_pos, phase, sum, i;
const uint8_t *s;
int16_t *filter;
src_pos = src_start;
for(i=0;i<dst_width;i++) {
#ifdef TEST
/* test */
if ((src_pos >> POS_FRAC_BITS) < 0 ||
(src_pos >> POS_FRAC_BITS) > (src_width - NB_TAPS))
av_abort();
#endif
s = src + (src_pos >> POS_FRAC_BITS);
phase = get_phase(src_pos);
filter = filters + phase * NB_TAPS;
#if NB_TAPS == 4
sum = s[0] * filter[0] +
s[1] * filter[1] +
s[2] * filter[2] +
s[3] * filter[3];
#else
{
int j;
sum = 0;
for(j=0;j<NB_TAPS;j++)
sum += s[j] * filter[j];
}
#endif
sum = sum >> FILTER_BITS;
if (sum < 0)
sum = 0;
else if (sum > 255)
sum = 255;
dst[0] = sum;
src_pos += src_incr;
dst++;
}
}
/* This function must be optimized */
static void v_resample(uint8_t *dst, int dst_width, const uint8_t *src,
int wrap, int16_t *filter)
{
int sum, i;
const uint8_t *s;
s = src;
for(i=0;i<dst_width;i++) {
#if NB_TAPS == 4
sum = s[0 * wrap] * filter[0] +
s[1 * wrap] * filter[1] +
s[2 * wrap] * filter[2] +
s[3 * wrap] * filter[3];
#else
{
int j;
uint8_t *s1 = s;
sum = 0;
for(j=0;j<NB_TAPS;j++) {
sum += s1[0] * filter[j];
s1 += wrap;
}
}
#endif
sum = sum >> FILTER_BITS;
if (sum < 0)
sum = 0;
else if (sum > 255)
sum = 255;
dst[0] = sum;
dst++;
s++;
}
}
#if HAVE_MMX
#include "x86/mmx.h"
#define FILTER4(reg) \
{\
s = src + (src_pos >> POS_FRAC_BITS);\
phase = get_phase(src_pos);\
filter = filters + phase * NB_TAPS;\
movq_m2r(*s, reg);\
punpcklbw_r2r(mm7, reg);\
movq_m2r(*filter, mm6);\
pmaddwd_r2r(reg, mm6);\
movq_r2r(mm6, reg);\
psrlq_i2r(32, reg);\
paddd_r2r(mm6, reg);\
psrad_i2r(FILTER_BITS, reg);\
src_pos += src_incr;\
}
#define DUMP(reg) movq_r2m(reg, tmp); printf(#reg "=%016"PRIx64"\n", tmp.uq);
/* XXX: do four pixels at a time */
static void h_resample_fast4_mmx(uint8_t *dst, int dst_width,
const uint8_t *src, int src_width,
int src_start, int src_incr, int16_t *filters)
{
int src_pos, phase;
const uint8_t *s;
int16_t *filter;
uint64_t tmp;
src_pos = src_start;
pxor_r2r(mm7, mm7);
while (dst_width >= 4) {
FILTER4(mm0);
FILTER4(mm1);
FILTER4(mm2);
FILTER4(mm3);
packuswb_r2r(mm7, mm0);
packuswb_r2r(mm7, mm1);
packuswb_r2r(mm7, mm3);
packuswb_r2r(mm7, mm2);
movq_r2m(mm0, tmp);
dst[0] = tmp & 0xFF;
movq_r2m(mm1, tmp);
dst[1] = tmp & 0xFF;
movq_r2m(mm2, tmp);
dst[2] = tmp & 0xFF;
movq_r2m(mm3, tmp);
dst[3] = tmp & 0xFF;
dst += 4;
dst_width -= 4;
}
while (dst_width > 0) {
FILTER4(mm0);
packuswb_r2r(mm7, mm0);
movq_r2m(mm0, tmp);
dst[0] = tmp & 0xFF;
dst++;
dst_width--;
}
emms();
}
static void v_resample4_mmx(uint8_t *dst, int dst_width, const uint8_t *src,
int wrap, int16_t *filter)
{
int sum, i;
const uint8_t *s;
uint64_t tmp;
uint64_t coefs[4];
for(i=0;i<4;i++) {
tmp = filter[i];
coefs[i] = (tmp<<48) + (tmp<<32) + (tmp<<16) + tmp;
}
pxor_r2r(mm7, mm7);
s = src;
while (dst_width >= 4) {
movq_m2r(s[0 * wrap], mm0);
punpcklbw_r2r(mm7, mm0);
movq_m2r(s[1 * wrap], mm1);
punpcklbw_r2r(mm7, mm1);
movq_m2r(s[2 * wrap], mm2);
punpcklbw_r2r(mm7, mm2);
movq_m2r(s[3 * wrap], mm3);
punpcklbw_r2r(mm7, mm3);
pmullw_m2r(coefs[0], mm0);
pmullw_m2r(coefs[1], mm1);
pmullw_m2r(coefs[2], mm2);
pmullw_m2r(coefs[3], mm3);
paddw_r2r(mm1, mm0);
paddw_r2r(mm3, mm2);
paddw_r2r(mm2, mm0);
psraw_i2r(FILTER_BITS, mm0);
packuswb_r2r(mm7, mm0);
movq_r2m(mm0, tmp);
*(uint32_t *)dst = tmp & 0xFFFFFFFF;
dst += 4;
s += 4;
dst_width -= 4;
}
while (dst_width > 0) {
sum = s[0 * wrap] * filter[0] +
s[1 * wrap] * filter[1] +
s[2 * wrap] * filter[2] +
s[3 * wrap] * filter[3];
sum = sum >> FILTER_BITS;
if (sum < 0)
sum = 0;
else if (sum > 255)
sum = 255;
dst[0] = sum;
dst++;
s++;
dst_width--;
}
emms();
}
#endif /* HAVE_MMX */
/* slow version to handle limit cases. Does not need optimization */
static void h_resample_slow(uint8_t *dst, int dst_width,
const uint8_t *src, int src_width,
int src_start, int src_incr, int16_t *filters)
{
int src_pos, phase, sum, j, v, i;
const uint8_t *s, *src_end;
int16_t *filter;
src_end = src + src_width;
src_pos = src_start;
for(i=0;i<dst_width;i++) {
s = src + (src_pos >> POS_FRAC_BITS);
phase = get_phase(src_pos);
filter = filters + phase * NB_TAPS;
sum = 0;
for(j=0;j<NB_TAPS;j++) {
if (s < src)
v = src[0];
else if (s >= src_end)
v = src_end[-1];
else
v = s[0];
sum += v * filter[j];
s++;
}
sum = sum >> FILTER_BITS;
if (sum < 0)
sum = 0;
else if (sum > 255)
sum = 255;
dst[0] = sum;
src_pos += src_incr;
dst++;
}
}
static void h_resample(uint8_t *dst, int dst_width, const uint8_t *src,
int src_width, int src_start, int src_incr,
int16_t *filters)
{
int n, src_end;
if (src_start < 0) {
n = (0 - src_start + src_incr - 1) / src_incr;
h_resample_slow(dst, n, src, src_width, src_start, src_incr, filters);
dst += n;
dst_width -= n;
src_start += n * src_incr;
}
src_end = src_start + dst_width * src_incr;
if (src_end > ((src_width - NB_TAPS) << POS_FRAC_BITS)) {
n = (((src_width - NB_TAPS + 1) << POS_FRAC_BITS) - 1 - src_start) /
src_incr;
} else {
n = dst_width;
}
#if HAVE_MMX
if ((mm_flags & FF_MM_MMX) && NB_TAPS == 4)
h_resample_fast4_mmx(dst, n,
src, src_width, src_start, src_incr, filters);
else
#endif
h_resample_fast(dst, n,
src, src_width, src_start, src_incr, filters);
if (n < dst_width) {
dst += n;
dst_width -= n;
src_start += n * src_incr;
h_resample_slow(dst, dst_width,
src, src_width, src_start, src_incr, filters);
}
}
static void component_resample(ImgReSampleContext *s,
uint8_t *output, int owrap, int owidth, int oheight,
uint8_t *input, int iwrap, int iwidth, int iheight)
{
int src_y, src_y1, last_src_y, ring_y, phase_y, y1, y;
uint8_t *new_line, *src_line;
last_src_y = - FCENTER - 1;
/* position of the bottom of the filter in the source image */
src_y = (last_src_y + NB_TAPS) * POS_FRAC;
ring_y = NB_TAPS; /* position in ring buffer */
for(y=0;y<oheight;y++) {
/* apply horizontal filter on new lines from input if needed */
src_y1 = src_y >> POS_FRAC_BITS;
while (last_src_y < src_y1) {
if (++ring_y >= LINE_BUF_HEIGHT + NB_TAPS)
ring_y = NB_TAPS;
last_src_y++;
/* handle limit conditions : replicate line (slightly
inefficient because we filter multiple times) */
y1 = last_src_y;
if (y1 < 0) {
y1 = 0;
} else if (y1 >= iheight) {
y1 = iheight - 1;
}
src_line = input + y1 * iwrap;
new_line = s->line_buf + ring_y * owidth;
/* apply filter and handle limit cases correctly */
h_resample(new_line, owidth,
src_line, iwidth, - FCENTER * POS_FRAC, s->h_incr,
&s->h_filters[0][0]);
/* handle ring buffer wrapping */
if (ring_y >= LINE_BUF_HEIGHT) {
memcpy(s->line_buf + (ring_y - LINE_BUF_HEIGHT) * owidth,
new_line, owidth);
}
}
/* apply vertical filter */
phase_y = get_phase(src_y);
#if HAVE_MMX
/* desactivated MMX because loss of precision */
if ((mm_flags & FF_MM_MMX) && NB_TAPS == 4 && 0)
v_resample4_mmx(output, owidth,
s->line_buf + (ring_y - NB_TAPS + 1) * owidth, owidth,
&s->v_filters[phase_y][0]);
else
#endif
#if HAVE_ALTIVEC
if ((mm_flags & FF_MM_ALTIVEC) && NB_TAPS == 4 && FILTER_BITS <= 6)
v_resample16_altivec(output, owidth,
s->line_buf + (ring_y - NB_TAPS + 1) * owidth,
owidth, &s->v_filters[phase_y][0]);
else
#endif
v_resample(output, owidth,
s->line_buf + (ring_y - NB_TAPS + 1) * owidth, owidth,
&s->v_filters[phase_y][0]);
src_y += s->v_incr;
output += owrap;
}
}
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
int iwidth, int iheight,
int topBand, int bottomBand,
int leftBand, int rightBand,
int padtop, int padbottom,
int padleft, int padright)
{
ImgReSampleContext *s;
if (!owidth || !oheight || !iwidth || !iheight)
return NULL;
s = av_mallocz(sizeof(ImgReSampleContext));
if (!s)
return NULL;
if((unsigned)owidth >= UINT_MAX / (LINE_BUF_HEIGHT + NB_TAPS))
goto fail;
s->line_buf = av_mallocz(owidth * (LINE_BUF_HEIGHT + NB_TAPS));
if (!s->line_buf)
goto fail;
s->owidth = owidth;
s->oheight = oheight;
s->iwidth = iwidth;
s->iheight = iheight;
s->topBand = topBand;
s->bottomBand = bottomBand;
s->leftBand = leftBand;
s->rightBand = rightBand;
s->padtop = padtop;
s->padbottom = padbottom;
s->padleft = padleft;
s->padright = padright;
s->pad_owidth = owidth - (padleft + padright);
s->pad_oheight = oheight - (padtop + padbottom);
s->h_incr = ((iwidth - leftBand - rightBand) * POS_FRAC) / s->pad_owidth;
s->v_incr = ((iheight - topBand - bottomBand) * POS_FRAC) / s->pad_oheight;
av_build_filter(&s->h_filters[0][0], (float) s->pad_owidth /
(float) (iwidth - leftBand - rightBand), NB_TAPS, NB_PHASES, 1<<FILTER_BITS, 0);
av_build_filter(&s->v_filters[0][0], (float) s->pad_oheight /
(float) (iheight - topBand - bottomBand), NB_TAPS, NB_PHASES, 1<<FILTER_BITS, 0);
return s;
fail:
av_free(s);
return NULL;
}
ImgReSampleContext *img_resample_init(int owidth, int oheight,
int iwidth, int iheight)
{
return img_resample_full_init(owidth, oheight, iwidth, iheight,
0, 0, 0, 0, 0, 0, 0, 0);
}
void img_resample(ImgReSampleContext *s,
AVPicture *output, const AVPicture *input)
{
int i, shift;
uint8_t* optr;
for (i=0;i<3;i++) {
shift = (i == 0) ? 0 : 1;
optr = output->data[i] + (((output->linesize[i] *
s->padtop) + s->padleft) >> shift);
component_resample(s, optr, output->linesize[i],
s->pad_owidth >> shift, s->pad_oheight >> shift,
input->data[i] + (input->linesize[i] *
(s->topBand >> shift)) + (s->leftBand >> shift),
input->linesize[i], ((s->iwidth - s->leftBand -
s->rightBand) >> shift),
(s->iheight - s->topBand - s->bottomBand) >> shift);
}
}
void img_resample_close(ImgReSampleContext *s)
{
av_free(s->line_buf);
av_free(s);
}
static const char *context_to_name(void* ptr)
{
return "imgconvert";
}
static const AVClass context_class = { "imgresample", context_to_name, NULL };
struct SwsContext *sws_getContext(int srcW, int srcH, int srcFormat,
int dstW, int dstH, int dstFormat,
int flags, SwsFilter *srcFilter,
SwsFilter *dstFilter, double *param)
{
struct SwsContext *ctx;
ctx = av_malloc(sizeof(struct SwsContext));
if (!ctx) {
av_log(NULL, AV_LOG_ERROR, "Cannot allocate a resampling context!\n");
return NULL;
}
ctx->av_class = &context_class;
if ((srcH != dstH) || (srcW != dstW)) {
if ((srcFormat != PIX_FMT_YUV420P) || (dstFormat != PIX_FMT_YUV420P)) {
av_log(ctx, AV_LOG_INFO, "PIX_FMT_YUV420P will be used as an intermediate format for rescaling\n");
}
ctx->resampling_ctx = img_resample_init(dstW, dstH, srcW, srcH);
} else {
ctx->resampling_ctx = av_malloc(sizeof(ImgReSampleContext));
ctx->resampling_ctx->iheight = srcH;
ctx->resampling_ctx->iwidth = srcW;
ctx->resampling_ctx->oheight = dstH;
ctx->resampling_ctx->owidth = dstW;
}
ctx->src_pix_fmt = srcFormat;
ctx->dst_pix_fmt = dstFormat;
return ctx;
}
void sws_freeContext(struct SwsContext *ctx)
{
if (!ctx)
return;
if ((ctx->resampling_ctx->iwidth != ctx->resampling_ctx->owidth) ||
(ctx->resampling_ctx->iheight != ctx->resampling_ctx->oheight)) {
img_resample_close(ctx->resampling_ctx);
} else {
av_free(ctx->resampling_ctx);
}
av_free(ctx);
}
/**
* Checks if context is valid or reallocs a new one instead.
* If context is NULL, just calls sws_getContext() to get a new one.
* Otherwise, checks if the parameters are the same already saved in context.
* If that is the case, returns the current context.
* Otherwise, frees context and gets a new one.
*
* Be warned that srcFilter, dstFilter are not checked, they are
* assumed to remain valid.
*/
struct SwsContext *sws_getCachedContext(struct SwsContext *ctx,
int srcW, int srcH, int srcFormat,
int dstW, int dstH, int dstFormat, int flags,
SwsFilter *srcFilter, SwsFilter *dstFilter, double *param)
{
if (ctx != NULL) {
if ((ctx->resampling_ctx->iwidth != srcW) ||
(ctx->resampling_ctx->iheight != srcH) ||
(ctx->src_pix_fmt != srcFormat) ||
(ctx->resampling_ctx->owidth != dstW) ||
(ctx->resampling_ctx->oheight != dstH) ||
(ctx->dst_pix_fmt != dstFormat))
{
sws_freeContext(ctx);
ctx = NULL;
}
}
if (ctx == NULL) {
return sws_getContext(srcW, srcH, srcFormat,
dstW, dstH, dstFormat, flags,
srcFilter, dstFilter, param);
}
return ctx;
}
int sws_scale(struct SwsContext *ctx, uint8_t* src[], int srcStride[],
int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[])
{
AVPicture src_pict, dst_pict;
int i, res = 0;
AVPicture picture_format_temp;
AVPicture picture_resample_temp, *formatted_picture, *resampled_picture;
uint8_t *buf1 = NULL, *buf2 = NULL;
enum PixelFormat current_pix_fmt;
for (i = 0; i < 4; i++) {
src_pict.data[i] = src[i];
src_pict.linesize[i] = srcStride[i];
dst_pict.data[i] = dst[i];
dst_pict.linesize[i] = dstStride[i];
}
if ((ctx->resampling_ctx->iwidth != ctx->resampling_ctx->owidth) ||
(ctx->resampling_ctx->iheight != ctx->resampling_ctx->oheight)) {
/* We have to rescale the picture, but only YUV420P rescaling is supported... */
if (ctx->src_pix_fmt != PIX_FMT_YUV420P) {
int size;
/* create temporary picture for rescaling input*/
size = avpicture_get_size(PIX_FMT_YUV420P, ctx->resampling_ctx->iwidth, ctx->resampling_ctx->iheight);
buf1 = av_malloc(size);
if (!buf1) {
res = -1;
goto the_end;
}
formatted_picture = &picture_format_temp;
avpicture_fill((AVPicture*)formatted_picture, buf1,
PIX_FMT_YUV420P, ctx->resampling_ctx->iwidth, ctx->resampling_ctx->iheight);
if (img_convert((AVPicture*)formatted_picture, PIX_FMT_YUV420P,
&src_pict, ctx->src_pix_fmt,
ctx->resampling_ctx->iwidth, ctx->resampling_ctx->iheight) < 0) {
av_log(ctx, AV_LOG_ERROR, "pixel format conversion not handled\n");
res = -1;
goto the_end;
}
} else {
formatted_picture = &src_pict;
}
if (ctx->dst_pix_fmt != PIX_FMT_YUV420P) {
int size;
/* create temporary picture for rescaling output*/
size = avpicture_get_size(PIX_FMT_YUV420P, ctx->resampling_ctx->owidth, ctx->resampling_ctx->oheight);
buf2 = av_malloc(size);
if (!buf2) {
res = -1;
goto the_end;
}
resampled_picture = &picture_resample_temp;
avpicture_fill((AVPicture*)resampled_picture, buf2,
PIX_FMT_YUV420P, ctx->resampling_ctx->owidth, ctx->resampling_ctx->oheight);
} else {
resampled_picture = &dst_pict;
}
/* ...and finally rescale!!! */
img_resample(ctx->resampling_ctx, resampled_picture, formatted_picture);
current_pix_fmt = PIX_FMT_YUV420P;
} else {
resampled_picture = &src_pict;
current_pix_fmt = ctx->src_pix_fmt;
}
if (current_pix_fmt != ctx->dst_pix_fmt) {
if (img_convert(&dst_pict, ctx->dst_pix_fmt,
resampled_picture, current_pix_fmt,
ctx->resampling_ctx->owidth, ctx->resampling_ctx->oheight) < 0) {
av_log(ctx, AV_LOG_ERROR, "pixel format conversion not handled\n");
res = -1;
goto the_end;
}
} else if (resampled_picture != &dst_pict) {
av_picture_copy(&dst_pict, resampled_picture, current_pix_fmt,
ctx->resampling_ctx->owidth, ctx->resampling_ctx->oheight);
}
the_end:
av_free(buf1);
av_free(buf2);
return res;
}
#ifdef TEST
#include <stdio.h>
#undef exit
/* input */
#define XSIZE 256
#define YSIZE 256
uint8_t img[XSIZE * YSIZE];
/* output */
#define XSIZE1 512
#define YSIZE1 512
uint8_t img1[XSIZE1 * YSIZE1];
uint8_t img2[XSIZE1 * YSIZE1];
void save_pgm(const char *filename, uint8_t *img, int xsize, int ysize)
{
#undef fprintf
FILE *f;
f=fopen(filename,"w");
fprintf(f,"P5\n%d %d\n%d\n", xsize, ysize, 255);
fwrite(img,1, xsize * ysize,f);
fclose(f);
#define fprintf please_use_av_log
}
static void dump_filter(int16_t *filter)
{
int i, ph;
for(ph=0;ph<NB_PHASES;ph++) {
av_log(NULL, AV_LOG_INFO, "%2d: ", ph);
for(i=0;i<NB_TAPS;i++) {
av_log(NULL, AV_LOG_INFO, " %5.2f", filter[ph * NB_TAPS + i] / 256.0);
}
av_log(NULL, AV_LOG_INFO, "\n");
}
}
#if HAVE_MMX
int mm_flags;
#endif
int main(int argc, char **argv)
{
int x, y, v, i, xsize, ysize;
ImgReSampleContext *s;
float fact, factors[] = { 1/2.0, 3.0/4.0, 1.0, 4.0/3.0, 16.0/9.0, 2.0 };
char buf[256];
/* build test image */
for(y=0;y<YSIZE;y++) {
for(x=0;x<XSIZE;x++) {
if (x < XSIZE/2 && y < YSIZE/2) {
if (x < XSIZE/4 && y < YSIZE/4) {
if ((x % 10) <= 6 &&
(y % 10) <= 6)
v = 0xff;
else
v = 0x00;
} else if (x < XSIZE/4) {
if (x & 1)
v = 0xff;
else
v = 0;
} else if (y < XSIZE/4) {
if (y & 1)
v = 0xff;
else
v = 0;
} else {
if (y < YSIZE*3/8) {
if ((y+x) & 1)
v = 0xff;
else
v = 0;
} else {
if (((x+3) % 4) <= 1 &&
((y+3) % 4) <= 1)
v = 0xff;
else
v = 0x00;
}
}
} else if (x < XSIZE/2) {
v = ((x - (XSIZE/2)) * 255) / (XSIZE/2);
} else if (y < XSIZE/2) {
v = ((y - (XSIZE/2)) * 255) / (XSIZE/2);
} else {
v = ((x + y - XSIZE) * 255) / XSIZE;
}
img[(YSIZE - y) * XSIZE + (XSIZE - x)] = v;
}
}
save_pgm("/tmp/in.pgm", img, XSIZE, YSIZE);
for(i=0;i<FF_ARRAY_ELEMS(factors);i++) {
fact = factors[i];
xsize = (int)(XSIZE * fact);
ysize = (int)((YSIZE - 100) * fact);
s = img_resample_full_init(xsize, ysize, XSIZE, YSIZE, 50 ,50, 0, 0, 0, 0, 0, 0);
av_log(NULL, AV_LOG_INFO, "Factor=%0.2f\n", fact);
dump_filter(&s->h_filters[0][0]);
component_resample(s, img1, xsize, xsize, ysize,
img + 50 * XSIZE, XSIZE, XSIZE, YSIZE - 100);
img_resample_close(s);
snprintf(buf, sizeof(buf), "/tmp/out%d.pgm", i);
save_pgm(buf, img1, xsize, ysize);
}
/* mmx test */
#if HAVE_MMX
av_log(NULL, AV_LOG_INFO, "MMX test\n");
fact = 0.72;
xsize = (int)(XSIZE * fact);
ysize = (int)(YSIZE * fact);
mm_flags = FF_MM_MMX;
s = img_resample_init(xsize, ysize, XSIZE, YSIZE);
component_resample(s, img1, xsize, xsize, ysize,
img, XSIZE, XSIZE, YSIZE);
mm_flags = 0;
s = img_resample_init(xsize, ysize, XSIZE, YSIZE);
component_resample(s, img2, xsize, xsize, ysize,
img, XSIZE, XSIZE, YSIZE);
if (memcmp(img1, img2, xsize * ysize) != 0) {
av_log(NULL, AV_LOG_ERROR, "mmx error\n");
exit(1);
}
av_log(NULL, AV_LOG_INFO, "MMX OK\n");
#endif /* HAVE_MMX */
return 0;
}
#endif /* TEST */

142
libavcodec/ppc/imgresample_altivec.c
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@ -1,142 +0,0 @@
/*
* High quality image resampling with polyphase filters
* Copyright (c) 2001 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file libavcodec/ppc/imgresample_altivec.c
* High quality image resampling with polyphase filters - AltiVec bits
*/
#include "util_altivec.h"
#define FILTER_BITS 8
typedef union {
vector signed short v;
signed short s[8];
} vec_ss;
void v_resample16_altivec(uint8_t *dst, int dst_width, const uint8_t *src,
int wrap, int16_t *filter)
{
int sum, i;
const uint8_t *s;
vector unsigned char *tv, tmp, dstv, zero;
vec_ss srchv[4], srclv[4], fv[4];
vector signed short zeros, sumhv, sumlv;
s = src;
for(i=0;i<4;i++) {
/*
The vec_madds later on does an implicit >>15 on the result.
Since FILTER_BITS is 8, and we have 15 bits of magnitude in
a signed short, we have just enough bits to pre-shift our
filter constants <<7 to compensate for vec_madds.
*/
fv[i].s[0] = filter[i] << (15-FILTER_BITS);
fv[i].v = vec_splat(fv[i].v, 0);
}
zero = vec_splat_u8(0);
zeros = vec_splat_s16(0);
/*
When we're resampling, we'd ideally like both our input buffers,
and output buffers to be 16-byte aligned, so we can do both aligned
reads and writes. Sadly we can't always have this at the moment, so
we opt for aligned writes, as unaligned writes have a huge overhead.
To do this, do enough scalar resamples to get dst 16-byte aligned.
*/
i = (-(int)dst) & 0xf;
while(i>0) {
sum = s[0 * wrap] * filter[0] +
s[1 * wrap] * filter[1] +
s[2 * wrap] * filter[2] +
s[3 * wrap] * filter[3];
sum = sum >> FILTER_BITS;
if (sum<0) sum = 0; else if (sum>255) sum=255;
dst[0] = sum;
dst++;
s++;
dst_width--;
i--;
}
/* Do our altivec resampling on 16 pixels at once. */
while(dst_width>=16) {
/* Read 16 (potentially unaligned) bytes from each of
4 lines into 4 vectors, and split them into shorts.
Interleave the multipy/accumulate for the resample
filter with the loads to hide the 3 cycle latency
the vec_madds have. */
tv = (vector unsigned char *) &s[0 * wrap];
tmp = vec_perm(tv[0], tv[1], vec_lvsl(0, &s[i * wrap]));
srchv[0].v = (vector signed short) vec_mergeh(zero, tmp);
srclv[0].v = (vector signed short) vec_mergel(zero, tmp);
sumhv = vec_madds(srchv[0].v, fv[0].v, zeros);
sumlv = vec_madds(srclv[0].v, fv[0].v, zeros);
tv = (vector unsigned char *) &s[1 * wrap];
tmp = vec_perm(tv[0], tv[1], vec_lvsl(0, &s[1 * wrap]));
srchv[1].v = (vector signed short) vec_mergeh(zero, tmp);
srclv[1].v = (vector signed short) vec_mergel(zero, tmp);
sumhv = vec_madds(srchv[1].v, fv[1].v, sumhv);
sumlv = vec_madds(srclv[1].v, fv[1].v, sumlv);
tv = (vector unsigned char *) &s[2 * wrap];
tmp = vec_perm(tv[0], tv[1], vec_lvsl(0, &s[2 * wrap]));
srchv[2].v = (vector signed short) vec_mergeh(zero, tmp);
srclv[2].v = (vector signed short) vec_mergel(zero, tmp);
sumhv = vec_madds(srchv[2].v, fv[2].v, sumhv);
sumlv = vec_madds(srclv[2].v, fv[2].v, sumlv);
tv = (vector unsigned char *) &s[3 * wrap];
tmp = vec_perm(tv[0], tv[1], vec_lvsl(0, &s[3 * wrap]));
srchv[3].v = (vector signed short) vec_mergeh(zero, tmp);
srclv[3].v = (vector signed short) vec_mergel(zero, tmp);
sumhv = vec_madds(srchv[3].v, fv[3].v, sumhv);
sumlv = vec_madds(srclv[3].v, fv[3].v, sumlv);
/* Pack the results into our destination vector,
and do an aligned write of that back to memory. */
dstv = vec_packsu(sumhv, sumlv) ;
vec_st(dstv, 0, (vector unsigned char *) dst);
dst+=16;
s+=16;
dst_width-=16;
}
/* If there are any leftover pixels, resample them
with the slow scalar method. */
while(dst_width>0) {
sum = s[0 * wrap] * filter[0] +
s[1 * wrap] * filter[1] +
s[2 * wrap] * filter[2] +
s[3 * wrap] * filter[3];
sum = sum >> FILTER_BITS;
if (sum<0) sum = 0; else if (sum>255) sum=255;
dst[0] = sum;
dst++;
s++;
dst_width--;
}
}

26
libavcodec/ppc/imgresample_altivec.h
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@ -1,26 +0,0 @@
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_PPC_IMGRESAMPLE_ALTIVEC_H
#define AVCODEC_PPC_IMGRESAMPLE_ALTIVEC_H
#include <stdint.h>
void v_resample16_altivec(uint8_t *dst, int dst_width, const uint8_t *src,
int wrap, int16_t *filter);
#endif /* AVCODEC_PPC_IMGRESAMPLE_ALTIVEC_H */

3
libavfilter/Makefile
View File

@ -1,8 +1,7 @@
include $(SUBDIR)../config.mak
NAME = avfilter
FFLIBS = avcodec avutil
FFLIBS-$(CONFIG_SWSCALE) += swscale
FFLIBS = avcodec avutil swscale
FFLIBS-$(CONFIG_AVFILTER_LAVF) += avformat
HEADERS = avfilter.h