[FFmpeg-cvslog] swscale/swscale: silence unused function warning

[Ganesh Ajjanagadde]

ffmpeg | branch: master | Ganesh Ajjanagadde <gajjanagadde at gmail.com> | Wed Sep 16 17:20:22 2015 -0400| [80d23d9d32d0a310f85d9623337d8681be080aa8] | committer: Timothy Gu

swscale/swscale: silence unused function warning

gamma_convert is only used with the old code. Thus, it is
placed under a header guard. This patch silences a -Wunused-function
observed on GCC 5.2.

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=80d23d9d32d0a310f85d9623337d8681be080aa8
---

 libswscale/swscale.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index 9558048..120bba1 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -52,6 +52,7 @@ DECLARE_ALIGNED(8, static const uint8_t, sws_pb_64)[8] = {
     64, 64, 64, 64, 64, 64, 64, 64
 };
 
+#ifndef NEW_FILTER
 static void gamma_convert(uint8_t * src[], int width, uint16_t *gamma)
 {
     int i;
@@ -67,6 +68,7 @@ static void gamma_convert(uint8_t * src[], int width, uint16_t *gamma)
         AV_WL16(src1 + i*4 + 2, gamma[b]);
     }
 }
+#endif
 
 static av_always_inline void fillPlane(uint8_t *plane, int stride, int width,
                                        int height, int y, uint8_t val)