Merge remote-tracking branch 'qatar/master'

* qatar/master:
  g723.1: simplify scale_vector()
  g723.1: simplify normalize_bits()
  vda: cosmetics: fix Doxygen comment formatting
  vda: better frame allocation
  vda: Merge implementation into one file
  vda: support synchronous decoding
  vda: Reuse the bitstream buffer and reallocate it only if needed
  build: Factor out mpegvideo encoding dependencies to CONFIG_MPEGVIDEOENC
  avprobe: Include libm.h for the log2 fallback
  proresenc: use the edge emulation buffer
  rtmp: handle bytes read reports
  configure: Fix typo in mpeg2video/svq1 decoder dependency declaration
  Use log2(x) instead of log(x) / log(2)
  x86: swscale: fix fragile memory accesses
  x86: swscale: remove disabled code
  x86: yadif: fix asm with suncc
  x86: cabac: allow building with suncc
  x86: mlpdsp: avoid taking address of void
  ARM: intmath: use native-size return types for clipping functions

Conflicts:
	configure
	ffprobe.c
	libavcodec/Makefile
	libavcodec/g723_1.c
	libavcodec/v210dec.h
	libavcodec/vda.h
	libavcodec/vda_h264.c
	libavcodec/x86/cabac.h
	libavfilter/x86/yadif_template.c
	libswscale/x86/rgb2rgb_template.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/g723_1.c

@@ -230,17 +230,7 @@ static int16_t square_root(int val)
  */
 static int normalize_bits(int num, int width)
 {
-    int i = 0;
-
-    if (num) {
-        if (num == -1)
-            return width;
-        if (num < 0)
-            num = ~num;
-        i= width - av_log2(num) - 1;
-        i= FFMAX(i, 0);
-    }
-    return i;
+    return width - av_log2(num) - 1;
 }
 
 #define normalize_bits_int16(num) normalize_bits(num, 15)