Merge remote-tracking branch 'qatar/master'

* qatar/master:
  qdm2: remove broken and disabled dump_context() debug function
  x86: h264_intrapred: use newly introduced SPLAT* and PSHUFLW macros
  x86inc: add SPLATB_LOAD, SPLATB_REG, PSHUFLW macros
  x86inc: modify ALIGN to not generate long nops on i586
  x86: h264_intrapred: port to cpuflag macros
  avplay: update input filter pointer when the filtergraph is reset.
  avconv: fix parsing of -force_key_frames option.
  h264: use templates to avoid excessive inlining
  xtea: Make the count parameter match the documentation
  blowfish: Make the count parameter match the documentation
  mpegvideo: Don't use ff_mspel_motion() for vc1
  xtea: invert branch and loop precedence
  blowfish: invert branch and loop precedence
  flvdec: optionally trust the metadata
  avconv: Set audio filter time base to the sample rate
  vp8: Add ifdef guards around the sse2 loopfilter in the sse2slow branch too

Conflicts:
	ffmpeg.c
	ffplay.c
	libavcodec/h264.c
	libavcodec/mpegvideo_common.h

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

1 files changed, 10 insertions, 7 deletions

diff --git a/libavutil/xtea.c b/libavutil/xtea.c
index 983cae90a5..0a5df1cec9 100644
--- a/libavutil/xtea.c
+++ b/libavutil/xtea.c
@@ -71,8 +71,8 @@ void av_xtea_crypt(AVXTEA *ctx, uint8_t *dst, const uint8_t *src, int count,
 {
     int i;
 
-    while (count > 0) {
-        if (decrypt) {
+    if (decrypt) {
+        while (count--) {
             xtea_crypt_ecb(ctx, dst, src, decrypt);
 
             if (iv) {
@@ -80,7 +80,12 @@ void av_xtea_crypt(AVXTEA *ctx, uint8_t *dst, const uint8_t *src, int count,
                     dst[i] = dst[i] ^ iv[i];
                 memcpy(iv, src, 8);
             }
-        } else {
+
+            src   += 8;
+            dst   += 8;
+        }
+    } else {
+        while (count--) {
             if (iv) {
                 for (i = 0; i < 8; i++)
                     dst[i] = src[i] ^ iv[i];
@@ -89,11 +94,9 @@ void av_xtea_crypt(AVXTEA *ctx, uint8_t *dst, const uint8_t *src, int count,
             } else {
                 xtea_crypt_ecb(ctx, dst, src, decrypt);
             }
+            src   += 8;
+            dst   += 8;
         }
-
-        src   += 8;
-        dst   += 8;
-        count -= 8;
     }
 }