Hi,
2014-07-19 14:17 GMT+02:00 Michael Niedermayer <michae...@gmx.at>:
> did you intend to attach a patch ?
Here you are.
--
Christophe
From 30f5f833280c0753a000ab05fd60b9d0a9685dcb Mon Sep 17 00:00:00 2001
From: Christophe Gisquet <christophe.gisq...@gmail.com>
Date: Thu, 10 Jul 2014 20:49:06 +0200
Subject: [PATCH 1/4] libavutil: document side effects of macros
---
libavutil/intreadwrite.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavutil/intreadwrite.h b/libavutil/intreadwrite.h
index 7ee6977..51fbe30 100644
--- a/libavutil/intreadwrite.h
+++ b/libavutil/intreadwrite.h
@@ -50,6 +50,14 @@ typedef union {
* AV_[RW][BLN](16|24|32|48|64) and AV_(COPY|SWAP|ZERO)(64|128) macros.
* Preprocessor symbols must be defined, even if these are implemented
* as inline functions.
+ *
+ * R/W means read/write, B/L/N means big/little/native endianness.
+ * The following macros require aligned access, compared to their
+ * unaligned variants: AV_(COPY|SWAP|ZERO)(64|128), AV_[RW]N[8-64]A.
+ * Incorrect usage may range from abysmal performance to crash
+ * depending on the platform.
+ *
+ * The unaligned variants are AV_[RW][BLN][8-64] and AV_COPY*U.
*/
#ifdef HAVE_AV_CONFIG_H
--
1.9.2.msysgit.0
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