Remove old scaler.

Originally committed as revision 17786 to svn://svn.ffmpeg.org/ffmpeg/trunk

Makefile

@@ -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

cmdutils.c

@@ -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

configure

@@ -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

libavcodec/Makefile

@@ -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)

libavcodec/imgconvert.c

@@ -1033,357 +1033,6 @@ void av_picture_copy(AVPicture *dst, const AVPicture *src,
     }
 }
 
-/* XXX: totally non optimized */
-
-static void yuyv422_to_yuv420p(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    const uint8_t *p, *p1;
-    uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
-    int w;
-
-    p1 = src->data[0];
-    lum1 = dst->data[0];
-    cb1 = dst->data[1];
-    cr1 = dst->data[2];
-
-    for(;height >= 1; height -= 2) {
-        p = p1;
-        lum = lum1;
-        cb = cb1;
-        cr = cr1;
-        for(w = width; w >= 2; w -= 2) {
-            lum[0] = p[0];
-            cb[0] = p[1];
-            lum[1] = p[2];
-            cr[0] = p[3];
-            p += 4;
-            lum += 2;
-            cb++;
-            cr++;
-        }
-        if (w) {
-            lum[0] = p[0];
-            cb[0] = p[1];
-            cr[0] = p[3];
-            cb++;
-            cr++;
-        }
-        p1 += src->linesize[0];
-        lum1 += dst->linesize[0];
-        if (height>1) {
-            p = p1;
-            lum = lum1;
-            for(w = width; w >= 2; w -= 2) {
-                lum[0] = p[0];
-                lum[1] = p[2];
-                p += 4;
-                lum += 2;
-            }
-            if (w) {
-                lum[0] = p[0];
-            }
-            p1 += src->linesize[0];
-            lum1 += dst->linesize[0];
-        }
-        cb1 += dst->linesize[1];
-        cr1 += dst->linesize[2];
-    }
-}
-
-static void uyvy422_to_yuv420p(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    const uint8_t *p, *p1;
-    uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
-    int w;
-
-    p1 = src->data[0];
-
-    lum1 = dst->data[0];
-    cb1 = dst->data[1];
-    cr1 = dst->data[2];
-
-    for(;height >= 1; height -= 2) {
-        p = p1;
-        lum = lum1;
-        cb = cb1;
-        cr = cr1;
-        for(w = width; w >= 2; w -= 2) {
-            lum[0] = p[1];
-            cb[0] = p[0];
-            lum[1] = p[3];
-            cr[0] = p[2];
-            p += 4;
-            lum += 2;
-            cb++;
-            cr++;
-        }
-        if (w) {
-            lum[0] = p[1];
-            cb[0] = p[0];
-            cr[0] = p[2];
-            cb++;
-            cr++;
-        }
-        p1 += src->linesize[0];
-        lum1 += dst->linesize[0];
-        if (height>1) {
-            p = p1;
-            lum = lum1;
-            for(w = width; w >= 2; w -= 2) {
-                lum[0] = p[1];
-                lum[1] = p[3];
-                p += 4;
-                lum += 2;
-            }
-            if (w) {
-                lum[0] = p[1];
-            }
-            p1 += src->linesize[0];
-            lum1 += dst->linesize[0];
-        }
-        cb1 += dst->linesize[1];
-        cr1 += dst->linesize[2];
-    }
-}
-
-
-static void uyvy422_to_yuv422p(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    const uint8_t *p, *p1;
-    uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
-    int w;
-
-    p1 = src->data[0];
-    lum1 = dst->data[0];
-    cb1 = dst->data[1];
-    cr1 = dst->data[2];
-    for(;height > 0; height--) {
-        p = p1;
-        lum = lum1;
-        cb = cb1;
-        cr = cr1;
-        for(w = width; w >= 2; w -= 2) {
-            lum[0] = p[1];
-            cb[0] = p[0];
-            lum[1] = p[3];
-            cr[0] = p[2];
-            p += 4;
-            lum += 2;
-            cb++;
-            cr++;
-        }
-        p1 += src->linesize[0];
-        lum1 += dst->linesize[0];
-        cb1 += dst->linesize[1];
-        cr1 += dst->linesize[2];
-    }
-}
-
-
-static void yuyv422_to_yuv422p(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    const uint8_t *p, *p1;
-    uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
-    int w;
-
-    p1 = src->data[0];
-    lum1 = dst->data[0];
-    cb1 = dst->data[1];
-    cr1 = dst->data[2];
-    for(;height > 0; height--) {
-        p = p1;
-        lum = lum1;
-        cb = cb1;
-        cr = cr1;
-        for(w = width; w >= 2; w -= 2) {
-            lum[0] = p[0];
-            cb[0] = p[1];
-            lum[1] = p[2];
-            cr[0] = p[3];
-            p += 4;
-            lum += 2;
-            cb++;
-            cr++;
-        }
-        p1 += src->linesize[0];
-        lum1 += dst->linesize[0];
-        cb1 += dst->linesize[1];
-        cr1 += dst->linesize[2];
-    }
-}
-
-static void yuv422p_to_yuyv422(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    uint8_t *p, *p1;
-    const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
-    int w;
-
-    p1 = dst->data[0];
-    lum1 = src->data[0];
-    cb1 = src->data[1];
-    cr1 = src->data[2];
-    for(;height > 0; height--) {
-        p = p1;
-        lum = lum1;
-        cb = cb1;
-        cr = cr1;
-        for(w = width; w >= 2; w -= 2) {
-            p[0] = lum[0];
-            p[1] = cb[0];
-            p[2] = lum[1];
-            p[3] = cr[0];
-            p += 4;
-            lum += 2;
-            cb++;
-            cr++;
-        }
-        p1 += dst->linesize[0];
-        lum1 += src->linesize[0];
-        cb1 += src->linesize[1];
-        cr1 += src->linesize[2];
-    }
-}
-
-static void yuv422p_to_uyvy422(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    uint8_t *p, *p1;
-    const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
-    int w;
-
-    p1 = dst->data[0];
-    lum1 = src->data[0];
-    cb1 = src->data[1];
-    cr1 = src->data[2];
-    for(;height > 0; height--) {
-        p = p1;
-        lum = lum1;
-        cb = cb1;
-        cr = cr1;
-        for(w = width; w >= 2; w -= 2) {
-            p[1] = lum[0];
-            p[0] = cb[0];
-            p[3] = lum[1];
-            p[2] = cr[0];
-            p += 4;
-            lum += 2;
-            cb++;
-            cr++;
-        }
-        p1 += dst->linesize[0];
-        lum1 += src->linesize[0];
-        cb1 += src->linesize[1];
-        cr1 += src->linesize[2];
-    }
-}
-
-static void uyyvyy411_to_yuv411p(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    const uint8_t *p, *p1;
-    uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
-    int w;
-
-    p1 = src->data[0];
-    lum1 = dst->data[0];
-    cb1 = dst->data[1];
-    cr1 = dst->data[2];
-    for(;height > 0; height--) {
-        p = p1;
-        lum = lum1;
-        cb = cb1;
-        cr = cr1;
-        for(w = width; w >= 4; w -= 4) {
-            cb[0] = p[0];
-            lum[0] = p[1];
-            lum[1] = p[2];
-            cr[0] = p[3];
-            lum[2] = p[4];
-            lum[3] = p[5];
-            p += 6;
-            lum += 4;
-            cb++;
-            cr++;
-        }
-        p1 += src->linesize[0];
-        lum1 += dst->linesize[0];
-        cb1 += dst->linesize[1];
-        cr1 += dst->linesize[2];
-    }
-}
-
-
-static void yuv420p_to_yuyv422(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    int w, h;
-    uint8_t *line1, *line2, *linesrc = dst->data[0];
-    uint8_t *lum1, *lum2, *lumsrc = src->data[0];
-    uint8_t *cb1, *cb2 = src->data[1];
-    uint8_t *cr1, *cr2 = src->data[2];
-
-    for(h = height / 2; h--;) {
-        line1 = linesrc;
-        line2 = linesrc + dst->linesize[0];
-
-        lum1 = lumsrc;
-        lum2 = lumsrc + src->linesize[0];
-
-        cb1 = cb2;
-        cr1 = cr2;
-
-        for(w = width / 2; w--;) {
-                *line1++ = *lum1++; *line2++ = *lum2++;
-                *line1++ =          *line2++ = *cb1++;
-                *line1++ = *lum1++; *line2++ = *lum2++;
-                *line1++ =          *line2++ = *cr1++;
-        }
-
-        linesrc += dst->linesize[0] * 2;
-        lumsrc += src->linesize[0] * 2;
-        cb2 += src->linesize[1];
-        cr2 += src->linesize[2];
-    }
-}
-
-static void yuv420p_to_uyvy422(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    int w, h;
-    uint8_t *line1, *line2, *linesrc = dst->data[0];
-    uint8_t *lum1, *lum2, *lumsrc = src->data[0];
-    uint8_t *cb1, *cb2 = src->data[1];
-    uint8_t *cr1, *cr2 = src->data[2];
-
-    for(h = height / 2; h--;) {
-        line1 = linesrc;
-        line2 = linesrc + dst->linesize[0];
-
-        lum1 = lumsrc;
-        lum2 = lumsrc + src->linesize[0];
-
-        cb1 = cb2;
-        cr1 = cr2;
-
-        for(w = width / 2; w--;) {
-                *line1++ =          *line2++ = *cb1++;
-                *line1++ = *lum1++; *line2++ = *lum2++;
-                *line1++ =          *line2++ = *cr1++;
-                *line1++ = *lum1++; *line2++ = *lum2++;
-        }
-
-        linesrc += dst->linesize[0] * 2;
-        lumsrc += src->linesize[0] * 2;
-        cb2 += src->linesize[1];
-        cr2 += src->linesize[2];
-    }
-}
-
 /* 2x2 -> 1x1 */
 void ff_shrink22(uint8_t *dst, int dst_wrap,
                      const uint8_t *src, int src_wrap,
@@ -1470,622 +1119,6 @@ void ff_shrink88(uint8_t *dst, int dst_wrap,
     }
 }
 
-/* XXX: add jpeg quantize code */
-
-#define TRANSP_INDEX (6*6*6)
-
-/* this is maybe slow, but allows for extensions */
-static inline unsigned char gif_clut_index(uint8_t r, uint8_t g, uint8_t b)
-{
-    return (((r) / 47) % 6) * 6 * 6 + (((g) / 47) % 6) * 6 + (((b) / 47) % 6);
-}
-
-static void build_rgb_palette(uint8_t *palette, int has_alpha)
-{
-    uint32_t *pal;
-    static const uint8_t pal_value[6] = { 0x00, 0x33, 0x66, 0x99, 0xcc, 0xff };
-    int i, r, g, b;
-
-    pal = (uint32_t *)palette;
-    i = 0;
-    for(r = 0; r < 6; r++) {
-        for(g = 0; g < 6; g++) {
-            for(b = 0; b < 6; b++) {
-                pal[i++] = (0xff << 24) | (pal_value[r] << 16) |
-                    (pal_value[g] << 8) | pal_value[b];
-            }
-        }
-    }
-    if (has_alpha)
-        pal[i++] = 0;
-    while (i < 256)
-        pal[i++] = 0xff000000;
-}
-
-/* copy bit n to bits 0 ... n - 1 */
-static inline unsigned int bitcopy_n(unsigned int a, int n)
-{
-    int mask;
-    mask = (1 << n) - 1;
-    return (a & (0xff & ~mask)) | ((-((a >> n) & 1)) & mask);
-}
-
-/* rgb555 handling */
-
-#define RGB_NAME rgb555
-
-#define RGB_IN(r, g, b, s)\
-{\
-    unsigned int v = ((const uint16_t *)(s))[0];\
-    r = bitcopy_n(v >> (10 - 3), 3);\
-    g = bitcopy_n(v >> (5 - 3), 3);\
-    b = bitcopy_n(v << 3, 3);\
-}
-
-
-#define RGB_OUT(d, r, g, b)\
-{\
-    ((uint16_t *)(d))[0] = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3);\
-}
-
-#define BPP 2
-
-#include "imgconvert_template.c"
-
-/* rgb565 handling */
-
-#define RGB_NAME rgb565
-
-#define RGB_IN(r, g, b, s)\
-{\
-    unsigned int v = ((const uint16_t *)(s))[0];\
-    r = bitcopy_n(v >> (11 - 3), 3);\
-    g = bitcopy_n(v >> (5 - 2), 2);\
-    b = bitcopy_n(v << 3, 3);\
-}
-
-#define RGB_OUT(d, r, g, b)\
-{\
-    ((uint16_t *)(d))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);\
-}
-
-#define BPP 2
-
-#include "imgconvert_template.c"
-
-/* bgr24 handling */
-
-#define RGB_NAME bgr24
-
-#define RGB_IN(r, g, b, s)\
-{\
-    b = (s)[0];\
-    g = (s)[1];\
-    r = (s)[2];\
-}
-
-#define RGB_OUT(d, r, g, b)\
-{\
-    (d)[0] = b;\
-    (d)[1] = g;\
-    (d)[2] = r;\
-}
-
-#define BPP 3
-
-#include "imgconvert_template.c"
-
-#undef RGB_IN
-#undef RGB_OUT
-#undef BPP
-
-/* rgb24 handling */
-
-#define RGB_NAME rgb24
-#define FMT_RGB24
-
-#define RGB_IN(r, g, b, s)\
-{\
-    r = (s)[0];\
-    g = (s)[1];\
-    b = (s)[2];\
-}
-
-#define RGB_OUT(d, r, g, b)\
-{\
-    (d)[0] = r;\
-    (d)[1] = g;\
-    (d)[2] = b;\
-}
-
-#define BPP 3
-
-#include "imgconvert_template.c"
-
-/* rgb32 handling */
-
-#define RGB_NAME rgb32
-#define FMT_RGB32
-
-#define RGB_IN(r, g, b, s)\
-{\
-    unsigned int v = ((const uint32_t *)(s))[0];\
-    r = (v >> 16) & 0xff;\
-    g = (v >> 8) & 0xff;\
-    b = v & 0xff;\
-}
-
-#define RGBA_IN(r, g, b, a, s)\
-{\
-    unsigned int v = ((const uint32_t *)(s))[0];\
-    a = (v >> 24) & 0xff;\
-    r = (v >> 16) & 0xff;\
-    g = (v >> 8) & 0xff;\
-    b = v & 0xff;\
-}
-
-#define RGBA_OUT(d, r, g, b, a)\
-{\
-    ((uint32_t *)(d))[0] = (a << 24) | (r << 16) | (g << 8) | b;\
-}
-
-#define BPP 4
-
-#include "imgconvert_template.c"
-
-static void mono_to_gray(AVPicture *dst, const AVPicture *src,
-                         int width, int height, int xor_mask)
-{
-    const unsigned char *p;
-    unsigned char *q;
-    int v, dst_wrap, src_wrap;
-    int y, w;
-
-    p = src->data[0];
-    src_wrap = src->linesize[0] - ((width + 7) >> 3);
-
-    q = dst->data[0];
-    dst_wrap = dst->linesize[0] - width;
-    for(y=0;y<height;y++) {
-        w = width;
-        while (w >= 8) {
-            v = *p++ ^ xor_mask;
-            q[0] = -(v >> 7);
-            q[1] = -((v >> 6) & 1);
-            q[2] = -((v >> 5) & 1);
-            q[3] = -((v >> 4) & 1);
-            q[4] = -((v >> 3) & 1);
-            q[5] = -((v >> 2) & 1);
-            q[6] = -((v >> 1) & 1);
-            q[7] = -((v >> 0) & 1);
-            w -= 8;
-            q += 8;
-        }
-        if (w > 0) {
-            v = *p++ ^ xor_mask;
-            do {
-                q[0] = -((v >> 7) & 1);
-                q++;
-                v <<= 1;
-            } while (--w);
-        }
-        p += src_wrap;
-        q += dst_wrap;
-    }
-}
-
-static void monowhite_to_gray(AVPicture *dst, const AVPicture *src,
-                               int width, int height)
-{
-    mono_to_gray(dst, src, width, height, 0xff);
-}
-
-static void monoblack_to_gray(AVPicture *dst, const AVPicture *src,
-                               int width, int height)
-{
-    mono_to_gray(dst, src, width, height, 0x00);
-}
-
-static void gray_to_mono(AVPicture *dst, const AVPicture *src,
-                         int width, int height, int xor_mask)
-{
-    int n;
-    const uint8_t *s;
-    uint8_t *d;
-    int j, b, v, n1, src_wrap, dst_wrap, y;
-
-    s = src->data[0];
-    src_wrap = src->linesize[0] - width;
-
-    d = dst->data[0];
-    dst_wrap = dst->linesize[0] - ((width + 7) >> 3);
-
-    for(y=0;y<height;y++) {
-        n = width;
-        while (n >= 8) {
-            v = 0;
-            for(j=0;j<8;j++) {
-                b = s[0];
-                s++;
-                v = (v << 1) | (b >> 7);
-            }
-            d[0] = v ^ xor_mask;
-            d++;
-            n -= 8;
-        }
-        if (n > 0) {
-            n1 = n;
-            v = 0;
-            while (n > 0) {
-                b = s[0];
-                s++;
-                v = (v << 1) | (b >> 7);
-                n--;
-            }
-            d[0] = (v << (8 - (n1 & 7))) ^ xor_mask;
-            d++;
-        }
-        s += src_wrap;
-        d += dst_wrap;
-    }
-}
-
-static void gray_to_monowhite(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    gray_to_mono(dst, src, width, height, 0xff);
-}
-
-static void gray_to_monoblack(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    gray_to_mono(dst, src, width, height, 0x00);
-}
-
-static void gray_to_gray16(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    int x, y, src_wrap, dst_wrap;
-    uint8_t *s, *d;
-    s = src->data[0];
-    src_wrap = src->linesize[0] - width;
-    d = dst->data[0];
-    dst_wrap = dst->linesize[0] - width * 2;
-    for(y=0; y<height; y++){
-        for(x=0; x<width; x++){
-            *d++ = *s;
-            *d++ = *s++;
-        }
-        s += src_wrap;
-        d += dst_wrap;
-    }
-}
-
-static void gray16_to_gray(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    int x, y, src_wrap, dst_wrap;
-    uint8_t *s, *d;
-    s = src->data[0];
-    src_wrap = src->linesize[0] - width * 2;
-    d = dst->data[0];
-    dst_wrap = dst->linesize[0] - width;
-    for(y=0; y<height; y++){
-        for(x=0; x<width; x++){
-            *d++ = *s;
-            s += 2;
-        }
-        s += src_wrap;
-        d += dst_wrap;
-    }
-}
-
-static void gray16be_to_gray(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    gray16_to_gray(dst, src, width, height);
-}
-
-static void gray16le_to_gray(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    AVPicture tmpsrc = *src;
-    tmpsrc.data[0]++;
-    gray16_to_gray(dst, &tmpsrc, width, height);
-}
-
-static void gray16_to_gray16(AVPicture *dst, const AVPicture *src,
-                              int width, int height)
-{
-    int x, y, src_wrap, dst_wrap;
-    uint16_t *s, *d;
-    s = (uint16_t*)src->data[0];
-    src_wrap = (src->linesize[0] - width * 2)/2;
-    d = (uint16_t*)dst->data[0];
-    dst_wrap = (dst->linesize[0] - width * 2)/2;
-    for(y=0; y<height; y++){
-        for(x=0; x<width; x++){
-            *d++ = bswap_16(*s++);
-        }
-        s += src_wrap;
-        d += dst_wrap;
-    }
-}
-
-
-typedef struct ConvertEntry {
-    void (*convert)(AVPicture *dst,
-                    const AVPicture *src, int width, int height);
-} ConvertEntry;
-
-/* Add each new conversion function in this table. In order to be able
-   to convert from any format to any format, the following constraints
-   must be satisfied:
-
-   - all FF_COLOR_RGB formats must convert to and from PIX_FMT_RGB24
-
-   - all FF_COLOR_GRAY formats must convert to and from PIX_FMT_GRAY8
-
-   - all FF_COLOR_RGB formats with alpha must convert to and from PIX_FMT_RGB32
-
-   - PIX_FMT_YUV444P and PIX_FMT_YUVJ444P must convert to and from
-     PIX_FMT_RGB24.
-
-   - PIX_FMT_422 must convert to and from PIX_FMT_422P.
-
-   The other conversion functions are just optimizations for common cases.
-*/
-static const ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB] = {
-    [PIX_FMT_YUV420P] = {
-        [PIX_FMT_YUYV422] = {
-            .convert = yuv420p_to_yuyv422,
-        },
-        [PIX_FMT_RGB555] = {
-            .convert = yuv420p_to_rgb555
-        },
-        [PIX_FMT_RGB565] = {
-            .convert = yuv420p_to_rgb565
-        },
-        [PIX_FMT_BGR24] = {
-            .convert = yuv420p_to_bgr24
-        },
-        [PIX_FMT_RGB24] = {
-            .convert = yuv420p_to_rgb24
-        },
-        [PIX_FMT_RGB32] = {
-            .convert = yuv420p_to_rgb32
-        },
-        [PIX_FMT_UYVY422] = {
-            .convert = yuv420p_to_uyvy422,
-        },
-    },
-    [PIX_FMT_YUV422P] = {
-        [PIX_FMT_YUYV422] = {
-            .convert = yuv422p_to_yuyv422,
-        },
-        [PIX_FMT_UYVY422] = {
-            .convert = yuv422p_to_uyvy422,
-        },
-    },
-    [PIX_FMT_YUV444P] = {
-        [PIX_FMT_RGB24] = {
-            .convert = yuv444p_to_rgb24
-        },
-    },
-    [PIX_FMT_YUVJ420P] = {
-        [PIX_FMT_RGB555] = {
-            .convert = yuvj420p_to_rgb555
-        },
-        [PIX_FMT_RGB565] = {
-            .convert = yuvj420p_to_rgb565
-        },
-        [PIX_FMT_BGR24] = {
-            .convert = yuvj420p_to_bgr24
-        },
-        [PIX_FMT_RGB24] = {
-            .convert = yuvj420p_to_rgb24
-        },
-        [PIX_FMT_RGB32] = {
-            .convert = yuvj420p_to_rgb32
-        },
-    },
-    [PIX_FMT_YUVJ444P] = {
-        [PIX_FMT_RGB24] = {
-            .convert = yuvj444p_to_rgb24
-        },
-    },
-    [PIX_FMT_YUYV422] = {
-        [PIX_FMT_YUV420P] = {
-            .convert = yuyv422_to_yuv420p,
-        },
-        [PIX_FMT_YUV422P] = {
-            .convert = yuyv422_to_yuv422p,
-        },
-    },
-    [PIX_FMT_UYVY422] = {
-        [PIX_FMT_YUV420P] = {
-            .convert = uyvy422_to_yuv420p,
-        },
-        [PIX_FMT_YUV422P] = {
-            .convert = uyvy422_to_yuv422p,
-        },
-    },
-    [PIX_FMT_RGB24] = {
-        [PIX_FMT_YUV420P] = {
-            .convert = rgb24_to_yuv420p
-        },
-        [PIX_FMT_RGB565] = {
-            .convert = rgb24_to_rgb565
-        },
-        [PIX_FMT_RGB555] = {
-            .convert = rgb24_to_rgb555
-        },
-        [PIX_FMT_RGB32] = {
-            .convert = rgb24_to_rgb32
-        },
-        [PIX_FMT_BGR24] = {
-            .convert = rgb24_to_bgr24
-        },
-        [PIX_FMT_GRAY8] = {
-            .convert = rgb24_to_gray
-        },
-        [PIX_FMT_PAL8] = {
-            .convert = rgb24_to_pal8
-        },
-        [PIX_FMT_YUV444P] = {
-            .convert = rgb24_to_yuv444p
-        },
-        [PIX_FMT_YUVJ420P] = {
-            .convert = rgb24_to_yuvj420p
-        },
-        [PIX_FMT_YUVJ444P] = {
-            .convert = rgb24_to_yuvj444p
-        },
-    },
-    [PIX_FMT_RGB32] = {
-        [PIX_FMT_RGB24] = {
-            .convert = rgb32_to_rgb24
-        },
-        [PIX_FMT_BGR24] = {
-            .convert = rgb32_to_bgr24
-        },
-        [PIX_FMT_RGB565] = {
-            .convert = rgb32_to_rgb565
-        },
-        [PIX_FMT_RGB555] = {
-            .convert = rgb32_to_rgb555
-        },
-        [PIX_FMT_PAL8] = {
-            .convert = rgb32_to_pal8
-        },
-        [PIX_FMT_YUV420P] = {
-            .convert = rgb32_to_yuv420p
-        },
-        [PIX_FMT_GRAY8] = {
-            .convert = rgb32_to_gray
-        },
-    },
-    [PIX_FMT_BGR24] = {
-        [PIX_FMT_RGB32] = {
-            .convert = bgr24_to_rgb32
-        },
-        [PIX_FMT_RGB24] = {
-            .convert = bgr24_to_rgb24
-        },
-        [PIX_FMT_YUV420P] = {
-            .convert = bgr24_to_yuv420p
-        },
-        [PIX_FMT_GRAY8] = {
-            .convert = bgr24_to_gray
-        },
-    },
-    [PIX_FMT_RGB555] = {
-        [PIX_FMT_RGB24] = {
-            .convert = rgb555_to_rgb24
-        },
-        [PIX_FMT_RGB32] = {
-            .convert = rgb555_to_rgb32
-        },
-        [PIX_FMT_YUV420P] = {
-            .convert = rgb555_to_yuv420p
-        },
-        [PIX_FMT_GRAY8] = {
-            .convert = rgb555_to_gray
-        },
-    },
-    [PIX_FMT_RGB565] = {
-        [PIX_FMT_RGB32] = {
-            .convert = rgb565_to_rgb32
-        },
-        [PIX_FMT_RGB24] = {
-            .convert = rgb565_to_rgb24
-        },
-        [PIX_FMT_YUV420P] = {
-            .convert = rgb565_to_yuv420p
-        },
-        [PIX_FMT_GRAY8] = {
-            .convert = rgb565_to_gray
-        },
-    },
-    [PIX_FMT_GRAY16BE] = {
-        [PIX_FMT_GRAY8] = {
-            .convert = gray16be_to_gray
-        },
-        [PIX_FMT_GRAY16LE] = {
-            .convert = gray16_to_gray16
-        },
-    },
-    [PIX_FMT_GRAY16LE] = {
-        [PIX_FMT_GRAY8] = {
-            .convert = gray16le_to_gray
-        },
-        [PIX_FMT_GRAY16BE] = {
-            .convert = gray16_to_gray16
-        },
-    },
-    [PIX_FMT_GRAY8] = {
-        [PIX_FMT_RGB555] = {
-            .convert = gray_to_rgb555
-        },
-        [PIX_FMT_RGB565] = {
-            .convert = gray_to_rgb565
-        },
-        [PIX_FMT_RGB24] = {
-            .convert = gray_to_rgb24
-        },
-        [PIX_FMT_BGR24] = {
-            .convert = gray_to_bgr24
-        },
-        [PIX_FMT_RGB32] = {
-            .convert = gray_to_rgb32
-        },
-        [PIX_FMT_MONOWHITE] = {
-            .convert = gray_to_monowhite
-        },
-        [PIX_FMT_MONOBLACK] = {
-            .convert = gray_to_monoblack
-        },
-        [PIX_FMT_GRAY16LE] = {
-            .convert = gray_to_gray16
-        },
-        [PIX_FMT_GRAY16BE] = {
-            .convert = gray_to_gray16
-        },
-    },
-    [PIX_FMT_MONOWHITE] = {
-        [PIX_FMT_GRAY8] = {
-            .convert = monowhite_to_gray
-        },
-    },
-    [PIX_FMT_MONOBLACK] = {
-        [PIX_FMT_GRAY8] = {
-            .convert = monoblack_to_gray
-        },
-    },
-    [PIX_FMT_PAL8] = {
-        [PIX_FMT_RGB555] = {
-            .convert = pal8_to_rgb555
-        },
-        [PIX_FMT_RGB565] = {
-            .convert = pal8_to_rgb565
-        },
-        [PIX_FMT_BGR24] = {
-            .convert = pal8_to_bgr24
-        },
-        [PIX_FMT_RGB24] = {
-            .convert = pal8_to_rgb24
-        },
-        [PIX_FMT_RGB32] = {
-            .convert = pal8_to_rgb32
-        },
-    },
-    [PIX_FMT_UYYVYY411] = {
-        [PIX_FMT_YUV411P] = {
-            .convert = uyyvyy411_to_yuv411p,
-        },
-    },
-
-};
 
 int avpicture_alloc(AVPicture *picture,
                            int pix_fmt, int width, int height)
@@ -2204,528 +1237,6 @@ int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width,
     return 0;
 }
 
-#if !CONFIG_SWSCALE
-static uint8_t y_ccir_to_jpeg[256];
-static uint8_t y_jpeg_to_ccir[256];
-static uint8_t c_ccir_to_jpeg[256];
-static uint8_t c_jpeg_to_ccir[256];
-
-/* init various conversion tables */
-static av_cold void img_convert_init(void)
-{
-    int i;
-    uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
-
-    for(i = 0;i < 256; i++) {
-        y_ccir_to_jpeg[i] = Y_CCIR_TO_JPEG(i);
-        y_jpeg_to_ccir[i] = Y_JPEG_TO_CCIR(i);
-        c_ccir_to_jpeg[i] = C_CCIR_TO_JPEG(i);
-        c_jpeg_to_ccir[i] = C_JPEG_TO_CCIR(i);
-    }
-}
-
-/* apply to each pixel the given table */
-static void img_apply_table(uint8_t *dst, int dst_wrap,
-                            const uint8_t *src, int src_wrap,
-                            int width, int height, const uint8_t *table1)
-{
-    int n;
-    const uint8_t *s;
-    uint8_t *d;
-    const uint8_t *table;
-
-    table = table1;
-    for(;height > 0; height--) {
-        s = src;
-        d = dst;
-        n = width;
-        while (n >= 4) {
-            d[0] = table[s[0]];
-            d[1] = table[s[1]];
-            d[2] = table[s[2]];
-            d[3] = table[s[3]];
-            d += 4;
-            s += 4;
-            n -= 4;
-        }
-        while (n > 0) {
-            d[0] = table[s[0]];
-            d++;
-            s++;
-            n--;
-        }
-        dst += dst_wrap;
-        src += src_wrap;
-    }
-}
-
-/* XXX: use generic filter ? */
-/* XXX: in most cases, the sampling position is incorrect */
-
-/* 4x1 -> 1x1 */
-static void shrink41(uint8_t *dst, int dst_wrap,
-                     const uint8_t *src, int src_wrap,
-                     int width, int height)
-{
-    int w;
-    const uint8_t *s;
-    uint8_t *d;
-
-    for(;height > 0; height--) {
-        s = src;
-        d = dst;
-        for(w = width;w > 0; w--) {
-            d[0] = (s[0] + s[1] + s[2] + s[3] + 2) >> 2;
-            s += 4;
-            d++;
-        }
-        src += src_wrap;
-        dst += dst_wrap;
-    }
-}
-
-/* 2x1 -> 1x1 */
-static void shrink21(uint8_t *dst, int dst_wrap,
-                     const uint8_t *src, int src_wrap,
-                     int width, int height)
-{
-    int w;
-    const uint8_t *s;
-    uint8_t *d;
-
-    for(;height > 0; height--) {
-        s = src;
-        d = dst;
-        for(w = width;w > 0; w--) {
-            d[0] = (s[0] + s[1]) >> 1;
-            s += 2;
-            d++;
-        }
-        src += src_wrap;
-        dst += dst_wrap;
-    }
-}
-
-/* 1x2 -> 1x1 */
-static void shrink12(uint8_t *dst, int dst_wrap,
-                     const uint8_t *src, int src_wrap,
-                     int width, int height)
-{
-    int w;
-    uint8_t *d;
-    const uint8_t *s1, *s2;
-
-    for(;height > 0; height--) {
-        s1 = src;
-        s2 = s1 + src_wrap;
-        d = dst;
-        for(w = width;w >= 4; w-=4) {
-            d[0] = (s1[0] + s2[0]) >> 1;
-            d[1] = (s1[1] + s2[1]) >> 1;
-            d[2] = (s1[2] + s2[2]) >> 1;
-            d[3] = (s1[3] + s2[3]) >> 1;
-            s1 += 4;
-            s2 += 4;
-            d += 4;
-        }
-        for(;w > 0; w--) {
-            d[0] = (s1[0] + s2[0]) >> 1;
-            s1++;
-            s2++;
-            d++;
-        }
-        src += 2 * src_wrap;
-        dst += dst_wrap;
-    }
-}
-
-static void grow21_line(uint8_t *dst, const uint8_t *src,
-                        int width)
-{
-    int w;
-    const uint8_t *s1;
-    uint8_t *d;
-
-    s1 = src;
-    d = dst;
-    for(w = width;w >= 4; w-=4) {
-        d[1] = d[0] = s1[0];
-        d[3] = d[2] = s1[1];
-        s1 += 2;
-        d += 4;
-    }
-    for(;w >= 2; w -= 2) {
-        d[1] = d[0] = s1[0];
-        s1 ++;
-        d += 2;
-    }
-    /* only needed if width is not a multiple of two */
-    /* XXX: veryfy that */
-    if (w) {
-        d[0] = s1[0];
-    }
-}
-
-static void grow41_line(uint8_t *dst, const uint8_t *src,
-                        int width)
-{
-    int w, v;
-    const uint8_t *s1;
-    uint8_t *d;
-
-    s1 = src;
-    d = dst;
-    for(w = width;w >= 4; w-=4) {
-        v = s1[0];
-        d[0] = v;
-        d[1] = v;
-        d[2] = v;
-        d[3] = v;
-        s1 ++;
-        d += 4;
-    }
-}
-
-/* 1x1 -> 2x1 */
-static void grow21(uint8_t *dst, int dst_wrap,
-                   const uint8_t *src, int src_wrap,
-                   int width, int height)
-{
-    for(;height > 0; height--) {
-        grow21_line(dst, src, width);
-        src += src_wrap;
-        dst += dst_wrap;
-    }
-}
-
-/* 1x1 -> 1x2 */
-static void grow12(uint8_t *dst, int dst_wrap,
-                   const uint8_t *src, int src_wrap,
-                   int width, int height)
-{
-    for(;height > 0; height-=2) {
-        memcpy(dst, src, width);
-        dst += dst_wrap;
-        memcpy(dst, src, width);
-        dst += dst_wrap;
-        src += src_wrap;
-    }
-}
-
-/* 1x1 -> 2x2 */
-static void grow22(uint8_t *dst, int dst_wrap,
-                   const uint8_t *src, int src_wrap,
-                   int width, int height)
-{
-    for(;height > 0; height--) {
-        grow21_line(dst, src, width);
-        if (height%2)
-            src += src_wrap;
-        dst += dst_wrap;
-    }
-}
-
-/* 1x1 -> 4x1 */
-static void grow41(uint8_t *dst, int dst_wrap,
-                   const uint8_t *src, int src_wrap,
-                   int width, int height)
-{
-    for(;height > 0; height--) {
-        grow41_line(dst, src, width);
-        src += src_wrap;
-        dst += dst_wrap;
-    }
-}
-
-/* 1x1 -> 4x4 */
-static void grow44(uint8_t *dst, int dst_wrap,
-                   const uint8_t *src, int src_wrap,
-                   int width, int height)
-{
-    for(;height > 0; height--) {
-        grow41_line(dst, src, width);
-        if ((height & 3) == 1)
-            src += src_wrap;
-        dst += dst_wrap;
-    }
-}
-
-/* 1x2 -> 2x1 */
-static void conv411(uint8_t *dst, int dst_wrap,
-                    const uint8_t *src, int src_wrap,
-                    int width, int height)
-{
-    int w, c;
-    const uint8_t *s1, *s2;
-    uint8_t *d;
-
-    width>>=1;
-
-    for(;height > 0; height--) {
-        s1 = src;
-        s2 = src + src_wrap;
-        d = dst;
-        for(w = width;w > 0; w--) {
-            c = (s1[0] + s2[0]) >> 1;
-            d[0] = c;
-            d[1] = c;
-            s1++;
-            s2++;
-            d += 2;
-        }
-        src += src_wrap * 2;
-        dst += dst_wrap;
-    }
-}
-
-/* XXX: always use linesize. Return -1 if not supported */
-int img_convert(AVPicture *dst, int dst_pix_fmt,
-                const AVPicture *src, int src_pix_fmt,
-                int src_width, int src_height)
-{
-    static int initialized;
-    int i, ret, dst_width, dst_height, int_pix_fmt;
-    const PixFmtInfo *src_pix, *dst_pix;
-    const ConvertEntry *ce;
-    AVPicture tmp1, *tmp = &tmp1;
-
-    if (src_pix_fmt < 0 || src_pix_fmt >= PIX_FMT_NB ||
-        dst_pix_fmt < 0 || dst_pix_fmt >= PIX_FMT_NB)
-        return -1;
-    if (src_width <= 0 || src_height <= 0)
-        return 0;
-
-    if (!initialized) {
-        initialized = 1;
-        img_convert_init();
-    }
-
-    dst_width = src_width;
-    dst_height = src_height;
-
-    dst_pix = &pix_fmt_info[dst_pix_fmt];
-    src_pix = &pix_fmt_info[src_pix_fmt];
-    if (src_pix_fmt == dst_pix_fmt) {
-        /* no conversion needed: just copy */
-        av_picture_copy(dst, src, dst_pix_fmt, dst_width, dst_height);
-        return 0;
-    }
-
-    ce = &convert_table[src_pix_fmt][dst_pix_fmt];
-    if (ce->convert) {
-        /* specific conversion routine */
-        ce->convert(dst, src, dst_width, dst_height);
-        return 0;
-    }
-
-    /* gray to YUV */
-    if (is_yuv_planar(dst_pix) &&
-        src_pix_fmt == PIX_FMT_GRAY8) {
-        int w, h, y;
-        uint8_t *d;
-
-        if (dst_pix->color_type == FF_COLOR_YUV_JPEG) {
-            ff_img_copy_plane(dst->data[0], dst->linesize[0],
-                     src->data[0], src->linesize[0],
-                     dst_width, dst_height);
-        } else {
-            img_apply_table(dst->data[0], dst->linesize[0],
-                            src->data[0], src->linesize[0],
-                            dst_width, dst_height,
-                            y_jpeg_to_ccir);
-        }
-        /* fill U and V with 128 */
-        w = dst_width;
-        h = dst_height;
-        w >>= dst_pix->x_chroma_shift;
-        h >>= dst_pix->y_chroma_shift;
-        for(i = 1; i <= 2; i++) {
-            d = dst->data[i];
-            for(y = 0; y< h; y++) {
-                memset(d, 128, w);
-                d += dst->linesize[i];
-            }
-        }
-        return 0;
-    }
-
-    /* YUV to gray */
-    if (is_yuv_planar(src_pix) &&
-        dst_pix_fmt == PIX_FMT_GRAY8) {
-        if (src_pix->color_type == FF_COLOR_YUV_JPEG) {
-            ff_img_copy_plane(dst->data[0], dst->linesize[0],
-                     src->data[0], src->linesize[0],
-                     dst_width, dst_height);
-        } else {
-            img_apply_table(dst->data[0], dst->linesize[0],
-                            src->data[0], src->linesize[0],
-                            dst_width, dst_height,
-                            y_ccir_to_jpeg);
-        }
-        return 0;
-    }
-
-    /* YUV to YUV planar */
-    if (is_yuv_planar(dst_pix) && is_yuv_planar(src_pix)) {
-        int x_shift, y_shift, w, h, xy_shift;
-        void (*resize_func)(uint8_t *dst, int dst_wrap,
-                            const uint8_t *src, int src_wrap,
-                            int width, int height);
-
-        /* compute chroma size of the smallest dimensions */
-        w = dst_width;
-        h = dst_height;
-        if (dst_pix->x_chroma_shift >= src_pix->x_chroma_shift)
-            w >>= dst_pix->x_chroma_shift;
-        else
-            w >>= src_pix->x_chroma_shift;
-        if (dst_pix->y_chroma_shift >= src_pix->y_chroma_shift)
-            h >>= dst_pix->y_chroma_shift;
-        else
-            h >>= src_pix->y_chroma_shift;
-
-        x_shift = (dst_pix->x_chroma_shift - src_pix->x_chroma_shift);
-        y_shift = (dst_pix->y_chroma_shift - src_pix->y_chroma_shift);
-        xy_shift = ((x_shift & 0xf) << 4) | (y_shift & 0xf);
-        /* there must be filters for conversion at least from and to
-           YUV444 format */
-        switch(xy_shift) {
-        case 0x00:
-            resize_func = ff_img_copy_plane;
-            break;
-        case 0x10:
-            resize_func = shrink21;
-            break;
-        case 0x20:
-            resize_func = shrink41;
-            break;
-        case 0x01:
-            resize_func = shrink12;
-            break;
-        case 0x11:
-            resize_func = ff_shrink22;
-            break;
-        case 0x22:
-            resize_func = ff_shrink44;
-            break;
-        case 0xf0:
-            resize_func = grow21;
-            break;
-        case 0x0f:
-            resize_func = grow12;
-            break;
-        case 0xe0:
-            resize_func = grow41;
-            break;
-        case 0xff:
-            resize_func = grow22;
-            break;
-        case 0xee:
-            resize_func = grow44;
-            break;
-        case 0xf1:
-            resize_func = conv411;
-            break;
-        default:
-            /* currently not handled */
-            goto no_chroma_filter;
-        }
-
-        ff_img_copy_plane(dst->data[0], dst->linesize[0],
-                       src->data[0], src->linesize[0],
-                       dst_width, dst_height);
-
-        for(i = 1;i <= 2; i++)
-            resize_func(dst->data[i], dst->linesize[i],
-                        src->data[i], src->linesize[i],
-                        dst_width>>dst_pix->x_chroma_shift, dst_height>>dst_pix->y_chroma_shift);
-        /* if yuv color space conversion is needed, we do it here on
-           the destination image */
-        if (dst_pix->color_type != src_pix->color_type) {
-            const uint8_t *y_table, *c_table;
-            if (dst_pix->color_type == FF_COLOR_YUV) {
-                y_table = y_jpeg_to_ccir;
-                c_table = c_jpeg_to_ccir;
-            } else {
-                y_table = y_ccir_to_jpeg;
-                c_table = c_ccir_to_jpeg;
-            }
-            img_apply_table(dst->data[0], dst->linesize[0],
-                            dst->data[0], dst->linesize[0],
-                            dst_width, dst_height,
-                            y_table);
-
-            for(i = 1;i <= 2; i++)
-                img_apply_table(dst->data[i], dst->linesize[i],
-                                dst->data[i], dst->linesize[i],
-                                dst_width>>dst_pix->x_chroma_shift,
-                                dst_height>>dst_pix->y_chroma_shift,
-                                c_table);
-        }
-        return 0;
-    }
- no_chroma_filter:
-
-    /* try to use an intermediate format */
-    if (src_pix_fmt == PIX_FMT_YUYV422 ||
-        dst_pix_fmt == PIX_FMT_YUYV422) {
-        /* specific case: convert to YUV422P first */
-        int_pix_fmt = PIX_FMT_YUV422P;
-    } else if (src_pix_fmt == PIX_FMT_UYVY422 ||
-        dst_pix_fmt == PIX_FMT_UYVY422) {
-        /* specific case: convert to YUV422P first */
-        int_pix_fmt = PIX_FMT_YUV422P;
-    } else if (src_pix_fmt == PIX_FMT_UYYVYY411 ||
-        dst_pix_fmt == PIX_FMT_UYYVYY411) {
-        /* specific case: convert to YUV411P first */
-        int_pix_fmt = PIX_FMT_YUV411P;
-    } else if ((src_pix->color_type == FF_COLOR_GRAY &&
-                src_pix_fmt != PIX_FMT_GRAY8) ||
-               (dst_pix->color_type == FF_COLOR_GRAY &&
-                dst_pix_fmt != PIX_FMT_GRAY8)) {
-        /* gray8 is the normalized format */
-        int_pix_fmt = PIX_FMT_GRAY8;
-    } else if ((is_yuv_planar(src_pix) &&
-                src_pix_fmt != PIX_FMT_YUV444P &&
-                src_pix_fmt != PIX_FMT_YUVJ444P)) {
-        /* yuv444 is the normalized format */
-        if (src_pix->color_type == FF_COLOR_YUV_JPEG)
-            int_pix_fmt = PIX_FMT_YUVJ444P;
-        else
-            int_pix_fmt = PIX_FMT_YUV444P;
-    } else if ((is_yuv_planar(dst_pix) &&
-                dst_pix_fmt != PIX_FMT_YUV444P &&
-                dst_pix_fmt != PIX_FMT_YUVJ444P)) {
-        /* yuv444 is the normalized format */
-        if (dst_pix->color_type == FF_COLOR_YUV_JPEG)
-            int_pix_fmt = PIX_FMT_YUVJ444P;
-        else
-            int_pix_fmt = PIX_FMT_YUV444P;
-    } else {
-        /* the two formats are rgb or gray8 or yuv[j]444p */
-        if (src_pix->is_alpha && dst_pix->is_alpha)
-            int_pix_fmt = PIX_FMT_RGB32;
-        else
-            int_pix_fmt = PIX_FMT_RGB24;
-    }
-    if (src_pix_fmt == int_pix_fmt)
-        return -1;
-    if (avpicture_alloc(tmp, int_pix_fmt, dst_width, dst_height) < 0)
-        return -1;
-    ret = -1;
-    if (img_convert(tmp, int_pix_fmt,
-                    src, src_pix_fmt, src_width, src_height) < 0)
-        goto fail1;
-    if (img_convert(dst, dst_pix_fmt,
-                    tmp, int_pix_fmt, dst_width, dst_height) < 0)
-        goto fail1;
-    ret = 0;
- fail1:
-    avpicture_free(tmp);
-    return ret;
-}
-#endif
-
 /* NOTE: we scan all the pixels to have an exact information */
 static int get_alpha_info_pal8(const AVPicture *src, int width, int height)
 {
@@ -2763,9 +1274,6 @@ int img_get_alpha_info(const AVPicture *src,
     if (!pf->is_alpha)
         return 0;
     switch(pix_fmt) {
-    case PIX_FMT_RGB32:
-        ret = get_alpha_info_rgb32(src, width, height);
-        break;
     case PIX_FMT_PAL8:
         ret = get_alpha_info_pal8(src, width, height);
         break;

libavcodec/imgconvert_template.c

-/*
- * 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

libavcodec/imgresample.c

-/*
- * 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 */

libavcodec/ppc/imgresample_altivec.c

-/*
- * 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--;
-    }
-}
-

libavcodec/ppc/imgresample_altivec.h

-/*
- * 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 */

libavfilter/Makefile

 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