[FFmpeg-cvslog] doc: Better documentation for the bitexact flag

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Fri Oct 31 23:45:43 2014 +0100| [bd0f866731ac8fed122100e5a4b86ac8f0d81dd1] | committer: Michael Niedermayer

doc: Better documentation for the bitexact flag

Reviewed-by: Benoit Fouet <benoit.fouet at free.fr>
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bd0f866731ac8fed122100e5a4b86ac8f0d81dd1
---

 doc/codecs.texi  |    4 +++-
 doc/formats.texi |    4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/doc/codecs.texi b/doc/codecs.texi
index 2bb6059..35068c7 100644
--- a/doc/codecs.texi
+++ b/doc/codecs.texi
@@ -71,7 +71,9 @@ Force low delay.
 @item global_header
 Place global headers in extradata instead of every keyframe.
 @item bitexact
-Use only bitexact stuff (except (I)DCT).
+Only write platform-, build- and time-independent data. (except (I)DCT).
+This ensures that file and data checksums are reproducable and match between
+platforms. Its primary use is for regression testing.
 @item aic
 Apply H263 advanced intra coding / mpeg4 ac prediction.
 @item cbp
diff --git a/doc/formats.texi b/doc/formats.texi
index bdae842..bca8924 100644
--- a/doc/formats.texi
+++ b/doc/formats.texi
@@ -56,7 +56,9 @@ Enable RTP MP4A-LATM payload.
 @item nobuffer
 Reduce the latency introduced by optional buffering
 @item bitexact
-Only write binary portable, build and time independant data.
+Only write platform-, build- and time-independent data.
+This ensures that file and data checksums are reproducable and match between
+platforms. Its primary use is for regression testing.
 @end table
 
 @item seek2any @var{integer} (@emph{input})