[FFmpeg-cvslog] avcodec/flac_parser: Use native endianness when possible

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Sun Oct  6 07:01:13 2019 +0200| [5e546864b09379910721b35a14713982d933d9dd] | committer: Paul B Mahol

avcodec/flac_parser: Use native endianness when possible

FLAC sync codes contain a byte equal to 0xFF and so the function that
searches for sync codes first searched for this byte. It did this by
checking four bytes at once; these bytes have been read via AV_RB32, but
the test works just as well with native endianness.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5e546864b09379910721b35a14713982d933d9dd
---

 libavcodec/flac_parser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/flac_parser.c b/libavcodec/flac_parser.c
index 2721286464..5d0705ce63 100644
--- a/libavcodec/flac_parser.c
+++ b/libavcodec/flac_parser.c
@@ -221,7 +221,7 @@ static int find_headers_search(FLACParseContext *fpc, uint8_t *buf, int buf_size
     }
 
     for (; i < buf_size - 1; i += 4) {
-        x = AV_RB32(buf + i);
+        x = AV_RN32(buf + i);
         if (((x & ~(x + 0x01010101)) & 0x80808080)) {
             for (j = 0; j < 4; j++) {
                 if ((AV_RB16(buf + i + j) & 0xFFFE) == 0xFFF8)