[FFmpeg-cvslog] avcodec/dpxenc: implement write16/32 as functions
Michael Niedermayer
git at videolan.org
Fri Jun 19 17:41:25 CEST 2015
ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Fri Jun 19 16:46:06 2015 +0200| [8edc17b639c4ac47913c467107ffb43c67c64890] | committer: Michael Niedermayer
avcodec/dpxenc: implement write16/32 as functions
Fixes undefined behavior and segfault
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8edc17b639c4ac47913c467107ffb43c67c64890
---
libavcodec/dpxenc.c | 23 +++++++++++++----------
1 file changed, 13 insertions(+), 10 deletions(-)
diff --git a/libavcodec/dpxenc.c b/libavcodec/dpxenc.c
index aca745b..76aa0cc 100644
--- a/libavcodec/dpxenc.c
+++ b/libavcodec/dpxenc.c
@@ -75,17 +75,20 @@ static av_cold int encode_init(AVCodecContext *avctx)
return 0;
}
-#define write16(p, value) \
-do { \
- if (s->big_endian) AV_WB16(p, value); \
- else AV_WL16(p, value); \
-} while(0)
+static av_always_inline void write16_internal(int big_endian, void *p, int value)
+{
+ if (big_endian) AV_WB16(p, value);
+ else AV_WL16(p, value);
+}
+
+static av_always_inline void write32_internal(int big_endian, void *p, int value)
+{
+ if (big_endian) AV_WB32(p, value);
+ else AV_WL32(p, value);
+}
-#define write32(p, value) \
-do { \
- if (s->big_endian) AV_WB32(p, value); \
- else AV_WL32(p, value); \
-} while(0)
+#define write16(p, value) write16_internal(s->big_endian, p, value)
+#define write32(p, value) write32_internal(s->big_endian, p, value)
static void encode_rgb48_10bit(AVCodecContext *avctx, const AVPicture *pic, uint8_t *dst)
{
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