[FFmpeg-cvslog] rgb2rgb: rgb12to15()

Paul B Mahol git at videolan.org
Sat Jan 14 02:53:46 CET 2012


ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Thu Jan 12 20:28:47 2012 +0000| [0cc1a86dc34b020d857f946e47edf9e425274330] | committer: Ronald S. Bultje

rgb2rgb: rgb12to15()

Signed-off-by: Ronald S. Bultje <rsbultje at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0cc1a86dc34b020d857f946e47edf9e425274330
---

 libswscale/rgb2rgb.c          |   19 +++++++++++++++++++
 libswscale/rgb2rgb.h          |    1 +
 libswscale/swscale_unscaled.c |    1 +
 3 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/libswscale/rgb2rgb.c b/libswscale/rgb2rgb.c
index 9fbb6cf..47b06f5 100644
--- a/libswscale/rgb2rgb.c
+++ b/libswscale/rgb2rgb.c
@@ -183,6 +183,25 @@ void rgb16tobgr32(const uint8_t *src, uint8_t *dst, int src_size)
     }
 }
 
+void rgb12to15(const uint8_t *src, uint8_t *dst, int src_size)
+{
+    const uint16_t *end;
+    uint16_t *d = (uint16_t *)dst;
+    const uint16_t *s = (const uint16_t *)src;
+    uint16_t rgb, r, g, b;
+    end = s + src_size / 2;
+    while (s < end) {
+        rgb = *s++;
+        r = rgb & 0xF00;
+        g = rgb & 0x0F0;
+        b = rgb & 0x00F;
+        r = (r << 3) | ((r & 0x800) >> 1);
+        g = (g << 2) | ((g & 0x080) >> 2);
+        b = (b << 1) | ( b          >> 3);
+        *d++ = r | g | b;
+    }
+}
+
 void rgb16to24(const uint8_t *src, uint8_t *dst, int src_size)
 {
     const uint16_t *end;
diff --git a/libswscale/rgb2rgb.h b/libswscale/rgb2rgb.h
index bfb85d7..42f468f 100644
--- a/libswscale/rgb2rgb.h
+++ b/libswscale/rgb2rgb.h
@@ -63,6 +63,7 @@ void    rgb15to24(const uint8_t *src, uint8_t *dst, int src_size);
 void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size);
 void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size);
 void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size);
+void    rgb12to15(const uint8_t *src, uint8_t *dst, int src_size);
 void   bgr8torgb8(const uint8_t *src, uint8_t *dst, int src_size);
 
 void shuffle_bytes_0321(const uint8_t *src, uint8_t *dst, int src_size);
diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c
index e497fef..5fe2b14 100644
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@@ -389,6 +389,7 @@ static rgbConvFn findRgbConvFn(SwsContext *c)
     if ((isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) ||
         (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {
         switch (srcId | (dstId << 16)) {
+        case 0x000F000C: conv = rgb12to15; break;
         case 0x000F0010: conv = rgb16to15; break;
         case 0x000F0018: conv = rgb24to15; break;
         case 0x000F0020: conv = rgb32to15; break;



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