making act segmenter

1 files changed, 927 insertions, 0 deletions

diff --git a/ffmpeg/libswscale/rgb2rgb_template.c b/ffmpeg/libswscale/rgb2rgb_template.c
new file mode 100644
index 0000000..8753594
--- /dev/null
+++ b/ffmpeg/libswscale/rgb2rgb_template.c
@@ -0,0 +1,927 @@
+/*
+ * software RGB to RGB converter
+ * pluralize by software PAL8 to RGB converter
+ *              software YUV to YUV converter
+ *              software YUV to RGB converter
+ * Written by Nick Kurshev.
+ * palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at)
+ * lot of big-endian byte order fixes by Alex Beregszaszi
+ *
+ * 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
+ */
+
+#include <stddef.h>
+
+static inline void rgb24tobgr32_c(const uint8_t *src, uint8_t *dst,
+                                  int src_size)
+{
+    uint8_t *dest      = dst;
+    const uint8_t *s   = src;
+    const uint8_t *end = s + src_size;
+
+    while (s < end) {
+#if HAVE_BIGENDIAN
+        /* RGB24 (= R, G, B) -> RGB32 (= A, B, G, R) */
+        *dest++  = 255;
+        *dest++  = s[2];
+        *dest++  = s[1];
+        *dest++  = s[0];
+        s       += 3;
+#else
+        *dest++  = *s++;
+        *dest++  = *s++;
+        *dest++  = *s++;
+        *dest++  = 255;
+#endif
+    }
+}
+
+static inline void rgb32tobgr24_c(const uint8_t *src, uint8_t *dst,
+                                  int src_size)
+{
+    uint8_t *dest      = dst;
+    const uint8_t *s   = src;
+    const uint8_t *end = s + src_size;
+
+    while (s < end) {
+#if HAVE_BIGENDIAN
+        /* RGB32 (= A, B, G, R) -> RGB24 (= R, G, B) */
+        s++;
+        dest[2]  = *s++;
+        dest[1]  = *s++;
+        dest[0]  = *s++;
+        dest    += 3;
+#else
+        *dest++  = *s++;
+        *dest++  = *s++;
+        *dest++  = *s++;
+        s++;
+#endif
+    }
+}
+
+/*
+ * original by Strepto/Astral
+ * ported to gcc & bugfixed: A'rpi
+ * MMXEXT, 3DNOW optimization by Nick Kurshev
+ * 32-bit C version, and and&add trick by Michael Niedermayer
+ */
+static inline void rgb15to16_c(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    register uint8_t *d         = dst;
+    register const uint8_t *s   = src;
+    register const uint8_t *end = s + src_size;
+    const uint8_t *mm_end       = end - 3;
+
+    while (s < mm_end) {
+        register unsigned x = *((const uint32_t *)s);
+        *((uint32_t *)d)    = (x & 0x7FFF7FFF) + (x & 0x7FE07FE0);
+        d += 4;
+        s += 4;
+    }
+    if (s < end) {
+        register unsigned short x = *((const uint16_t *)s);
+        *((uint16_t *)d)          = (x & 0x7FFF) + (x & 0x7FE0);
+    }
+}
+
+static inline void rgb16to15_c(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    register uint8_t *d         = dst;
+    register const uint8_t *s   = src;
+    register const uint8_t *end = s + src_size;
+    const uint8_t *mm_end       = end - 3;
+
+    while (s < mm_end) {
+        register uint32_t x  = *((const uint32_t *)s);
+        *((uint32_t *)d)     = ((x >> 1) & 0x7FE07FE0) | (x & 0x001F001F);
+        s                   += 4;
+        d                   += 4;
+    }
+    if (s < end) {
+        register uint16_t x = *((const uint16_t *)s);
+        *((uint16_t *)d)    = ((x >> 1) & 0x7FE0) | (x & 0x001F);
+    }
+}
+
+static inline void rgb32to16_c(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    uint16_t *d        = (uint16_t *)dst;
+    const uint8_t *s   = src;
+    const uint8_t *end = s + src_size;
+
+    while (s < end) {
+        register int rgb  = *(const uint32_t *)s;
+        s                += 4;
+        *d++              = ((rgb & 0xFF)     >> 3) +
+                            ((rgb & 0xFC00)   >> 5) +
+                            ((rgb & 0xF80000) >> 8);
+    }
+}
+
+static inline void rgb32tobgr16_c(const uint8_t *src, uint8_t *dst,
+                                  int src_size)
+{
+    uint16_t *d        = (uint16_t *)dst;
+    const uint8_t *s   = src;
+    const uint8_t *end = s + src_size;
+
+    while (s < end) {
+        register int rgb  = *(const uint32_t *)s;
+        s                += 4;
+        *d++              = ((rgb & 0xF8)     << 8) +
+                            ((rgb & 0xFC00)   >> 5) +
+                            ((rgb & 0xF80000) >> 19);
+    }
+}
+
+static inline void rgb32to15_c(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    uint16_t *d        = (uint16_t *)dst;
+    const uint8_t *s   = src;
+    const uint8_t *end = s + src_size;
+
+    while (s < end) {
+        register int rgb  = *(const uint32_t *)s;
+        s                += 4;
+        *d++              = ((rgb & 0xFF)     >> 3) +
+                            ((rgb & 0xF800)   >> 6) +
+                            ((rgb & 0xF80000) >> 9);
+    }
+}
+
+static inline void rgb32tobgr15_c(const uint8_t *src, uint8_t *dst,
+                                  int src_size)
+{
+    uint16_t *d        = (uint16_t *)dst;
+    const uint8_t *s   = src;
+    const uint8_t *end = s + src_size;
+
+    while (s < end) {
+        register int rgb  = *(const uint32_t *)s;
+        s                += 4;
+        *d++              = ((rgb & 0xF8)     <<  7) +
+                            ((rgb & 0xF800)   >>  6) +
+                            ((rgb & 0xF80000) >> 19);
+    }
+}
+
+static inline void rgb24tobgr16_c(const uint8_t *src, uint8_t *dst,
+                                  int src_size)
+{
+    uint16_t *d        = (uint16_t *)dst;
+    const uint8_t *s   = src;
+    const uint8_t *end = s + src_size;
+
+    while (s < end) {
+        const int b = *s++;
+        const int g = *s++;
+        const int r = *s++;
+        *d++        = (b >> 3) | ((g & 0xFC) << 3) | ((r & 0xF8) << 8);
+    }
+}
+
+static inline void rgb24to16_c(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    uint16_t *d        = (uint16_t *)dst;
+    const uint8_t *s   = src;
+    const uint8_t *end = s + src_size;
+
+    while (s < end) {
+        const int r = *s++;
+        const int g = *s++;
+        const int b = *s++;
+        *d++        = (b >> 3) | ((g & 0xFC) << 3) | ((r & 0xF8) << 8);
+    }
+}
+
+static inline void rgb24tobgr15_c(const uint8_t *src, uint8_t *dst,
+                                  int src_size)
+{
+    uint16_t *d        = (uint16_t *)dst;
+    const uint8_t *s   = src;
+    const uint8_t *end = s + src_size;
+
+    while (s < end) {
+        const int b = *s++;
+        const int g = *s++;
+        const int r = *s++;
+        *d++        = (b >> 3) | ((g & 0xF8) << 2) | ((r & 0xF8) << 7);
+    }
+}
+
+static inline void rgb24to15_c(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    uint16_t *d        = (uint16_t *)dst;
+    const uint8_t *s   = src;
+    const uint8_t *end = s + src_size;
+
+    while (s < end) {
+        const int r = *s++;
+        const int g = *s++;
+        const int b = *s++;
+        *d++        = (b >> 3) | ((g & 0xF8) << 2) | ((r & 0xF8) << 7);
+    }
+}
+
+static inline void rgb15tobgr24_c(const uint8_t *src, uint8_t *dst,
+                                  int src_size)
+{
+    uint8_t *d          = dst;
+    const uint16_t *s   = (const uint16_t *)src;
+    const uint16_t *end = s + src_size / 2;
+
+    while (s < end) {
+        register uint16_t bgr = *s++;
+        *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
+        *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
+        *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
+    }
+}
+
+static inline void rgb16tobgr24_c(const uint8_t *src, uint8_t *dst,
+                                  int src_size)
+{
+    uint8_t *d          = (uint8_t *)dst;
+    const uint16_t *s   = (const uint16_t *)src;
+    const uint16_t *end = s + src_size / 2;
+
+    while (s < end) {
+        register uint16_t bgr = *s++;
+        *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
+        *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
+        *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
+    }
+}
+
+static inline void rgb15to32_c(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    uint8_t *d          = dst;
+    const uint16_t *s   = (const uint16_t *)src;
+    const uint16_t *end = s + src_size / 2;
+
+    while (s < end) {
+        register uint16_t bgr = *s++;
+#if HAVE_BIGENDIAN
+        *d++ = 255;
+        *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
+        *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
+        *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
+#else
+        *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
+        *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
+        *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
+        *d++ = 255;
+#endif
+    }
+}
+
+static inline void rgb16to32_c(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    uint8_t *d          = dst;
+    const uint16_t *s   = (const uint16_t *)src;
+    const uint16_t *end = s + src_size / 2;
+
+    while (s < end) {
+        register uint16_t bgr = *s++;
+#if HAVE_BIGENDIAN
+        *d++ = 255;
+        *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
+        *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
+        *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
+#else
+        *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
+        *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
+        *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
+        *d++ = 255;
+#endif
+    }
+}
+
+static inline void shuffle_bytes_2103_c(const uint8_t *src, uint8_t *dst,
+                                        int src_size)
+{
+    int idx          = 15  - src_size;
+    const uint8_t *s = src - idx;
+    uint8_t *d       = dst - idx;
+
+    for (; idx < 15; idx += 4) {
+        register int v        = *(const uint32_t *)&s[idx], g = v & 0xff00ff00;
+        v                    &= 0xff00ff;
+        *(uint32_t *)&d[idx]  = (v >> 16) + g + (v << 16);
+    }
+}
+
+static inline void rgb24tobgr24_c(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    unsigned i;
+
+    for (i = 0; i < src_size; i += 3) {
+        register uint8_t x = src[i + 2];
+        dst[i + 1]         = src[i + 1];
+        dst[i + 2]         = src[i + 0];
+        dst[i + 0]         = x;
+    }
+}
+
+static inline void yuvPlanartoyuy2_c(const uint8_t *ysrc, const uint8_t *usrc,
+                                     const uint8_t *vsrc, uint8_t *dst,
+                                     int width, int height,
+                                     int lumStride, int chromStride,
+                                     int dstStride, int vertLumPerChroma)
+{
+    int y, i;
+    const int chromWidth = width >> 1;
+
+    for (y = 0; y < height; y++) {
+#if HAVE_FAST_64BIT
+        uint64_t *ldst = (uint64_t *)dst;
+        const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;
+        for (i = 0; i < chromWidth; i += 2) {
+            uint64_t k = yc[0] + (uc[0] << 8) +
+                         (yc[1] << 16) + (unsigned)(vc[0] << 24);
+            uint64_t l = yc[2] + (uc[1] << 8) +
+                         (yc[3] << 16) + (unsigned)(vc[1] << 24);
+            *ldst++ = k + (l << 32);
+            yc     += 4;
+            uc     += 2;
+            vc     += 2;
+        }
+
+#else
+        int *idst = (int32_t *)dst;
+        const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;
+
+        for (i = 0; i < chromWidth; i++) {
+#if HAVE_BIGENDIAN
+            *idst++ = (yc[0] << 24) + (uc[0] << 16) +
+                      (yc[1] <<  8) + (vc[0] <<  0);
+#else
+            *idst++ = yc[0] + (uc[0] << 8) +
+                      (yc[1] << 16) + (vc[0] << 24);
+#endif
+            yc += 2;
+            uc++;
+            vc++;
+        }
+#endif
+        if ((y & (vertLumPerChroma - 1)) == vertLumPerChroma - 1) {
+            usrc += chromStride;
+            vsrc += chromStride;
+        }
+        ysrc += lumStride;
+        dst  += dstStride;
+    }
+}
+
+/**
+ * Height should be a multiple of 2 and width should be a multiple of 16.
+ * (If this is a problem for anyone then tell me, and I will fix it.)
+ */
+static inline void yv12toyuy2_c(const uint8_t *ysrc, const uint8_t *usrc,
+                                const uint8_t *vsrc, uint8_t *dst,
+                                int width, int height, int lumStride,
+                                int chromStride, int dstStride)
+{
+    //FIXME interpolate chroma
+    yuvPlanartoyuy2_c(ysrc, usrc, vsrc, dst, width, height, lumStride,
+                      chromStride, dstStride, 2);
+}
+
+static inline void yuvPlanartouyvy_c(const uint8_t *ysrc, const uint8_t *usrc,
+                                     const uint8_t *vsrc, uint8_t *dst,
+                                     int width, int height,
+                                     int lumStride, int chromStride,
+                                     int dstStride, int vertLumPerChroma)
+{
+    int y, i;
+    const int chromWidth = width >> 1;
+
+    for (y = 0; y < height; y++) {
+#if HAVE_FAST_64BIT
+        uint64_t *ldst = (uint64_t *)dst;
+        const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;
+        for (i = 0; i < chromWidth; i += 2) {
+            uint64_t k = uc[0] + (yc[0] << 8) +
+                         (vc[0] << 16) + (unsigned)(yc[1] << 24);
+            uint64_t l = uc[1] + (yc[2] << 8) +
+                         (vc[1] << 16) + (unsigned)(yc[3] << 24);
+            *ldst++ = k + (l << 32);
+            yc     += 4;
+            uc     += 2;
+            vc     += 2;
+        }
+
+#else
+        int *idst = (int32_t *)dst;
+        const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;
+
+        for (i = 0; i < chromWidth; i++) {
+#if HAVE_BIGENDIAN
+            *idst++ = (uc[0] << 24) + (yc[0] << 16) +
+                      (vc[0] <<  8) + (yc[1] <<  0);
+#else
+            *idst++ = uc[0] + (yc[0] << 8) +
+                      (vc[0] << 16) + (yc[1] << 24);
+#endif
+            yc += 2;
+            uc++;
+            vc++;
+        }
+#endif
+        if ((y & (vertLumPerChroma - 1)) == vertLumPerChroma - 1) {
+            usrc += chromStride;
+            vsrc += chromStride;
+        }
+        ysrc += lumStride;
+        dst  += dstStride;
+    }
+}
+
+/**
+ * Height should be a multiple of 2 and width should be a multiple of 16
+ * (If this is a problem for anyone then tell me, and I will fix it.)
+ */
+static inline void yv12touyvy_c(const uint8_t *ysrc, const uint8_t *usrc,
+                                const uint8_t *vsrc, uint8_t *dst,
+                                int width, int height, int lumStride,
+                                int chromStride, int dstStride)
+{
+    //FIXME interpolate chroma
+    yuvPlanartouyvy_c(ysrc, usrc, vsrc, dst, width, height, lumStride,
+                      chromStride, dstStride, 2);
+}
+
+/**
+ * Width should be a multiple of 16.
+ */
+static inline void yuv422ptouyvy_c(const uint8_t *ysrc, const uint8_t *usrc,
+                                   const uint8_t *vsrc, uint8_t *dst,
+                                   int width, int height, int lumStride,
+                                   int chromStride, int dstStride)
+{
+    yuvPlanartouyvy_c(ysrc, usrc, vsrc, dst, width, height, lumStride,
+                      chromStride, dstStride, 1);
+}
+
+/**
+ * Width should be a multiple of 16.
+ */
+static inline void yuv422ptoyuy2_c(const uint8_t *ysrc, const uint8_t *usrc,
+                                   const uint8_t *vsrc, uint8_t *dst,
+                                   int width, int height, int lumStride,
+                                   int chromStride, int dstStride)
+{
+    yuvPlanartoyuy2_c(ysrc, usrc, vsrc, dst, width, height, lumStride,
+                      chromStride, dstStride, 1);
+}
+
+/**
+ * Height should be a multiple of 2 and width should be a multiple of 16.
+ * (If this is a problem for anyone then tell me, and I will fix it.)
+ */
+static inline void yuy2toyv12_c(const uint8_t *src, uint8_t *ydst,
+                                uint8_t *udst, uint8_t *vdst,
+                                int width, int height, int lumStride,
+                                int chromStride, int srcStride)
+{
+    int y;
+    const int chromWidth = width >> 1;
+
+    for (y = 0; y < height; y += 2) {
+        int i;
+        for (i = 0; i < chromWidth; i++) {
+            ydst[2 * i + 0] = src[4 * i + 0];
+            udst[i]         = src[4 * i + 1];
+            ydst[2 * i + 1] = src[4 * i + 2];
+            vdst[i]         = src[4 * i + 3];
+        }
+        ydst += lumStride;
+        src  += srcStride;
+
+        for (i = 0; i < chromWidth; i++) {
+            ydst[2 * i + 0] = src[4 * i + 0];
+            ydst[2 * i + 1] = src[4 * i + 2];
+        }
+        udst += chromStride;
+        vdst += chromStride;
+        ydst += lumStride;
+        src  += srcStride;
+    }
+}
+
+static inline void planar2x_c(const uint8_t *src, uint8_t *dst, int srcWidth,
+                              int srcHeight, int srcStride, int dstStride)
+{
+    int x, y;
+
+    dst[0] = src[0];
+
+    // first line
+    for (x = 0; x < srcWidth - 1; x++) {
+        dst[2 * x + 1] = (3 * src[x] + src[x + 1]) >> 2;
+        dst[2 * x + 2] = (src[x] + 3 * src[x + 1]) >> 2;
+    }
+    dst[2 * srcWidth - 1] = src[srcWidth - 1];
+
+    dst += dstStride;
+
+    for (y = 1; y < srcHeight; y++) {
+        const int mmxSize = 1;
+
+        dst[0]         = (src[0] * 3 + src[srcStride]) >> 2;
+        dst[dstStride] = (src[0] + 3 * src[srcStride]) >> 2;
+
+        for (x = mmxSize - 1; x < srcWidth - 1; x++) {
+            dst[2 * x + 1]             = (src[x + 0] * 3 + src[x + srcStride + 1]) >> 2;
+            dst[2 * x + dstStride + 2] = (src[x + 0] + 3 * src[x + srcStride + 1]) >> 2;
+            dst[2 * x + dstStride + 1] = (src[x + 1] + 3 * src[x + srcStride])     >> 2;
+            dst[2 * x + 2]             = (src[x + 1] * 3 + src[x + srcStride])     >> 2;
+        }
+        dst[srcWidth * 2 - 1]             = (src[srcWidth - 1] * 3 + src[srcWidth - 1 + srcStride]) >> 2;
+        dst[srcWidth * 2 - 1 + dstStride] = (src[srcWidth - 1] + 3 * src[srcWidth - 1 + srcStride]) >> 2;
+
+        dst += dstStride * 2;
+        src += srcStride;
+    }
+
+    // last line
+    dst[0] = src[0];
+
+    for (x = 0; x < srcWidth - 1; x++) {
+        dst[2 * x + 1] = (src[x] * 3 + src[x + 1]) >> 2;
+        dst[2 * x + 2] = (src[x] + 3 * src[x + 1]) >> 2;
+    }
+    dst[2 * srcWidth - 1] = src[srcWidth - 1];
+}
+
+/**
+ * Height should be a multiple of 2 and width should be a multiple of 16.
+ * (If this is a problem for anyone then tell me, and I will fix it.)
+ * Chrominance data is only taken from every second line, others are ignored.
+ * FIXME: Write HQ version.
+ */
+static inline void uyvytoyv12_c(const uint8_t *src, uint8_t *ydst,
+                                uint8_t *udst, uint8_t *vdst,
+                                int width, int height, int lumStride,
+                                int chromStride, int srcStride)
+{
+    int y;
+    const int chromWidth = width >> 1;
+
+    for (y = 0; y < height; y += 2) {
+        int i;
+        for (i = 0; i < chromWidth; i++) {
+            udst[i]         = src[4 * i + 0];
+            ydst[2 * i + 0] = src[4 * i + 1];
+            vdst[i]         = src[4 * i + 2];
+            ydst[2 * i + 1] = src[4 * i + 3];
+        }
+        ydst += lumStride;
+        src  += srcStride;
+
+        for (i = 0; i < chromWidth; i++) {
+            ydst[2 * i + 0] = src[4 * i + 1];
+            ydst[2 * i + 1] = src[4 * i + 3];
+        }
+        udst += chromStride;
+        vdst += chromStride;
+        ydst += lumStride;
+        src  += srcStride;
+    }
+}
+
+/**
+ * Height should be a multiple of 2 and width should be a multiple of 2.
+ * (If this is a problem for anyone then tell me, and I will fix it.)
+ * Chrominance data is only taken from every second line,
+ * others are ignored in the C version.
+ * FIXME: Write HQ version.
+ */
+void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+                   uint8_t *vdst, int width, int height, int lumStride,
+                   int chromStride, int srcStride)
+{
+    int y;
+    const int chromWidth = width >> 1;
+
+    for (y = 0; y < height; y += 2) {
+        int i;
+        for (i = 0; i < chromWidth; i++) {
+            unsigned int b = src[6 * i + 0];
+            unsigned int g = src[6 * i + 1];
+            unsigned int r = src[6 * i + 2];
+
+            unsigned int Y = ((RY * r + GY * g + BY * b) >> RGB2YUV_SHIFT) +  16;
+            unsigned int V = ((RV * r + GV * g + BV * b) >> RGB2YUV_SHIFT) + 128;
+            unsigned int U = ((RU * r + GU * g + BU * b) >> RGB2YUV_SHIFT) + 128;
+
+            udst[i]     = U;
+            vdst[i]     = V;
+            ydst[2 * i] = Y;
+
+            b = src[6 * i + 3];
+            g = src[6 * i + 4];
+            r = src[6 * i + 5];
+
+            Y = ((RY * r + GY * g + BY * b) >> RGB2YUV_SHIFT) + 16;
+            ydst[2 * i + 1] = Y;
+        }
+        ydst += lumStride;
+        src  += srcStride;
+
+        if (y+1 == height)
+            break;
+
+        for (i = 0; i < chromWidth; i++) {
+            unsigned int b = src[6 * i + 0];
+            unsigned int g = src[6 * i + 1];
+            unsigned int r = src[6 * i + 2];
+
+            unsigned int Y = ((RY * r + GY * g + BY * b) >> RGB2YUV_SHIFT) + 16;
+
+            ydst[2 * i] = Y;
+
+            b = src[6 * i + 3];
+            g = src[6 * i + 4];
+            r = src[6 * i + 5];
+
+            Y = ((RY * r + GY * g + BY * b) >> RGB2YUV_SHIFT) + 16;
+            ydst[2 * i + 1] = Y;
+        }
+        udst += chromStride;
+        vdst += chromStride;
+        ydst += lumStride;
+        src  += srcStride;
+    }
+}
+
+static void interleaveBytes_c(const uint8_t *src1, const uint8_t *src2,
+                              uint8_t *dest, int width, int height,
+                              int src1Stride, int src2Stride, int dstStride)
+{
+    int h;
+
+    for (h = 0; h < height; h++) {
+        int w;
+        for (w = 0; w < width; w++) {
+            dest[2 * w + 0] = src1[w];
+            dest[2 * w + 1] = src2[w];
+        }
+        dest += dstStride;
+        src1 += src1Stride;
+        src2 += src2Stride;
+    }
+}
+
+static inline void vu9_to_vu12_c(const uint8_t *src1, const uint8_t *src2,
+                                 uint8_t *dst1, uint8_t *dst2,
+                                 int width, int height,
+                                 int srcStride1, int srcStride2,
+                                 int dstStride1, int dstStride2)
+{
+    int x, y;
+    int w = width  / 2;
+    int h = height / 2;
+
+    for (y = 0; y < h; y++) {
+        const uint8_t *s1 = src1 + srcStride1 * (y >> 1);
+        uint8_t *d        = dst1 + dstStride1 *  y;
+        for (x = 0; x < w; x++)
+            d[2 * x] = d[2 * x + 1] = s1[x];
+    }
+    for (y = 0; y < h; y++) {
+        const uint8_t *s2 = src2 + srcStride2 * (y >> 1);
+        uint8_t *d        = dst2 + dstStride2 *  y;
+        for (x = 0; x < w; x++)
+            d[2 * x] = d[2 * x + 1] = s2[x];
+    }
+}
+
+static inline void yvu9_to_yuy2_c(const uint8_t *src1, const uint8_t *src2,
+                                  const uint8_t *src3, uint8_t *dst,
+                                  int width, int height,
+                                  int srcStride1, int srcStride2,
+                                  int srcStride3, int dstStride)
+{
+    int x, y;
+    int w = width / 2;
+    int h = height;
+
+    for (y = 0; y < h; y++) {
+        const uint8_t *yp = src1 + srcStride1 *  y;
+        const uint8_t *up = src2 + srcStride2 * (y >> 2);
+        const uint8_t *vp = src3 + srcStride3 * (y >> 2);
+        uint8_t *d        = dst  + dstStride  *  y;
+        for (x = 0; x < w; x++) {
+            const int x2 = x << 2;
+            d[8 * x + 0] = yp[x2];
+            d[8 * x + 1] = up[x];
+            d[8 * x + 2] = yp[x2 + 1];
+            d[8 * x + 3] = vp[x];
+            d[8 * x + 4] = yp[x2 + 2];
+            d[8 * x + 5] = up[x];
+            d[8 * x + 6] = yp[x2 + 3];
+            d[8 * x + 7] = vp[x];
+        }
+    }
+}
+
+static void extract_even_c(const uint8_t *src, uint8_t *dst, int count)
+{
+    dst   +=  count;
+    src   +=  count * 2;
+    count  = -count;
+    while (count < 0) {
+        dst[count] = src[2 * count];
+        count++;
+    }
+}
+
+static void extract_even2_c(const uint8_t *src, uint8_t *dst0, uint8_t *dst1,
+                            int count)
+{
+    dst0  +=  count;
+    dst1  +=  count;
+    src   +=  count * 4;
+    count  = -count;
+    while (count < 0) {
+        dst0[count] = src[4 * count + 0];
+        dst1[count] = src[4 * count + 2];
+        count++;
+    }
+}
+
+static void extract_even2avg_c(const uint8_t *src0, const uint8_t *src1,
+                               uint8_t *dst0, uint8_t *dst1, int count)
+{
+    dst0  +=  count;
+    dst1  +=  count;
+    src0  +=  count * 4;
+    src1  +=  count * 4;
+    count  = -count;
+    while (count < 0) {
+        dst0[count] = (src0[4 * count + 0] + src1[4 * count + 0]) >> 1;
+        dst1[count] = (src0[4 * count + 2] + src1[4 * count + 2]) >> 1;
+        count++;
+    }
+}
+
+static void extract_odd2_c(const uint8_t *src, uint8_t *dst0, uint8_t *dst1,
+                           int count)
+{
+    dst0  +=  count;
+    dst1  +=  count;
+    src   +=  count * 4;
+    count  = -count;
+    src++;
+    while (count < 0) {
+        dst0[count] = src[4 * count + 0];
+        dst1[count] = src[4 * count + 2];
+        count++;
+    }
+}
+
+static void extract_odd2avg_c(const uint8_t *src0, const uint8_t *src1,
+                              uint8_t *dst0, uint8_t *dst1, int count)
+{
+    dst0  +=  count;
+    dst1  +=  count;
+    src0  +=  count * 4;
+    src1  +=  count * 4;
+    count  = -count;
+    src0++;
+    src1++;
+    while (count < 0) {
+        dst0[count] = (src0[4 * count + 0] + src1[4 * count + 0]) >> 1;
+        dst1[count] = (src0[4 * count + 2] + src1[4 * count + 2]) >> 1;
+        count++;
+    }
+}
+
+static void yuyvtoyuv420_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
+                           const uint8_t *src, int width, int height,
+                           int lumStride, int chromStride, int srcStride)
+{
+    int y;
+    const int chromWidth = -((-width) >> 1);
+
+    for (y = 0; y < height; y++) {
+        extract_even_c(src, ydst, width);
+        if (y & 1) {
+            extract_odd2avg_c(src - srcStride, src, udst, vdst, chromWidth);
+            udst += chromStride;
+            vdst += chromStride;
+        }
+
+        src  += srcStride;
+        ydst += lumStride;
+    }
+}
+
+static void yuyvtoyuv422_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
+                           const uint8_t *src, int width, int height,
+                           int lumStride, int chromStride, int srcStride)
+{
+    int y;
+    const int chromWidth = -((-width) >> 1);
+
+    for (y = 0; y < height; y++) {
+        extract_even_c(src, ydst, width);
+        extract_odd2_c(src, udst, vdst, chromWidth);
+
+        src  += srcStride;
+        ydst += lumStride;
+        udst += chromStride;
+        vdst += chromStride;
+    }
+}
+
+static void uyvytoyuv420_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
+                           const uint8_t *src, int width, int height,
+                           int lumStride, int chromStride, int srcStride)
+{
+    int y;
+    const int chromWidth = -((-width) >> 1);
+
+    for (y = 0; y < height; y++) {
+        extract_even_c(src + 1, ydst, width);
+        if (y & 1) {
+            extract_even2avg_c(src - srcStride, src, udst, vdst, chromWidth);
+            udst += chromStride;
+            vdst += chromStride;
+        }
+
+        src  += srcStride;
+        ydst += lumStride;
+    }
+}
+
+static void uyvytoyuv422_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
+                           const uint8_t *src, int width, int height,
+                           int lumStride, int chromStride, int srcStride)
+{
+    int y;
+    const int chromWidth = -((-width) >> 1);
+
+    for (y = 0; y < height; y++) {
+        extract_even_c(src + 1, ydst, width);
+        extract_even2_c(src, udst, vdst, chromWidth);
+
+        src  += srcStride;
+        ydst += lumStride;
+        udst += chromStride;
+        vdst += chromStride;
+    }
+}
+
+static inline void rgb2rgb_init_c(void)
+{
+    rgb15to16          = rgb15to16_c;
+    rgb15tobgr24       = rgb15tobgr24_c;
+    rgb15to32          = rgb15to32_c;
+    rgb16tobgr24       = rgb16tobgr24_c;
+    rgb16to32          = rgb16to32_c;
+    rgb16to15          = rgb16to15_c;
+    rgb24tobgr16       = rgb24tobgr16_c;
+    rgb24tobgr15       = rgb24tobgr15_c;
+    rgb24tobgr32       = rgb24tobgr32_c;
+    rgb32to16          = rgb32to16_c;
+    rgb32to15          = rgb32to15_c;
+    rgb32tobgr24       = rgb32tobgr24_c;
+    rgb24to15          = rgb24to15_c;
+    rgb24to16          = rgb24to16_c;
+    rgb24tobgr24       = rgb24tobgr24_c;
+    shuffle_bytes_2103 = shuffle_bytes_2103_c;
+    rgb32tobgr16       = rgb32tobgr16_c;
+    rgb32tobgr15       = rgb32tobgr15_c;
+    yv12toyuy2         = yv12toyuy2_c;
+    yv12touyvy         = yv12touyvy_c;
+    yuv422ptoyuy2      = yuv422ptoyuy2_c;
+    yuv422ptouyvy      = yuv422ptouyvy_c;
+    yuy2toyv12         = yuy2toyv12_c;
+    planar2x           = planar2x_c;
+    rgb24toyv12        = rgb24toyv12_c;
+    interleaveBytes    = interleaveBytes_c;
+    vu9_to_vu12        = vu9_to_vu12_c;
+    yvu9_to_yuy2       = yvu9_to_yuy2_c;
+
+    uyvytoyuv420       = uyvytoyuv420_c;
+    uyvytoyuv422       = uyvytoyuv422_c;
+    yuyvtoyuv420       = yuyvtoyuv420_c;
+    yuyvtoyuv422       = yuyvtoyuv422_c;
+}