Merge commit '096abfa15052977eed93f0b5e01afd2d47c53c1f'

* commit '096abfa15052977eed93f0b5e01afd2d47c53c1f':
  parser: fix large overreads
  bitstream: add get_bits64() to support reading more than 32 bits at once
  arm: detect cpu features at runtime on Linux

Conflicts:
	libavcodec/parser.c
	libavformat/mpegts.c

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

2 files changed, 8 insertions, 7 deletions

diff --git a/libavcodec/get_bits.h b/libavcodec/get_bits.h
index 965d69c061..777176dd30 100644
--- a/libavcodec/get_bits.h
+++ b/libavcodec/get_bits.h
@@ -322,15 +322,15 @@ static inline unsigned int get_bits_long(GetBitContext *s, int n)
  */
 static inline uint64_t get_bits64(GetBitContext *s, int n)
 {
-    if (n <= 32)
+    if (n <= 32) {
         return get_bits_long(s, n);
-    else {
+    } else {
 #ifdef BITSTREAM_READER_LE
         uint64_t ret = get_bits_long(s, 32);
-        return ret | (((uint64_t)get_bits_long(s, n-32)) << 32);
+        return ret | (uint64_t)get_bits_long(s, n - 32) << 32;
 #else
-        uint64_t ret = ((uint64_t)get_bits_long(s, 32)) << (n-32);
-        return ret | get_bits_long(s, n-32);
+        uint64_t ret = (uint64_t)get_bits_long(s, n - 32) << 32;
+        return ret | get_bits_long(s, 32);
 #endif
     }
 }
diff --git a/libavcodec/parser.c b/libavcodec/parser.c
index 2e204e2c2a..3b4715035a 100644
--- a/libavcodec/parser.c
+++ b/libavcodec/parser.c
@@ -253,8 +253,9 @@ int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_s
         if(!new_buffer)
             return AVERROR(ENOMEM);
         pc->buffer = new_buffer;
-        if(FF_INPUT_BUFFER_PADDING_SIZE > -next)
-        memcpy(&pc->buffer[pc->index], *buf, next + FF_INPUT_BUFFER_PADDING_SIZE );
+        if (next > -FF_INPUT_BUFFER_PADDING_SIZE)
+            memcpy(&pc->buffer[pc->index], *buf,
+                   next + FF_INPUT_BUFFER_PADDING_SIZE);
         pc->index = 0;
         *buf= pc->buffer;
     }