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authorMichael Niedermayer <michaelni@gmx.at>2014-10-31 23:45:43 +0100
committerMichael Niedermayer <michaelni@gmx.at>2014-11-03 18:54:51 +0100
commitbd0f866731ac8fed122100e5a4b86ac8f0d81dd1 (patch)
tree62799c4ac6a768ac104ab0455022cfa9a4970555
parent898635ad9ec9cadc3c45b61fba97a471f2be7d27 (diff)
downloadffmpeg-bd0f866731ac8fed122100e5a4b86ac8f0d81dd1.tar.gz
doc: Better documentation for the bitexact flag
Reviewed-by: Benoit Fouet <benoit.fouet@free.fr> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--doc/codecs.texi4
-rw-r--r--doc/formats.texi4
2 files changed, 6 insertions, 2 deletions
diff --git a/doc/codecs.texi b/doc/codecs.texi
index 2bb60595c9..35068c701c 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 bdae84232e..bca8924ebe 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})