[FFmpeg-cvslog] avcodec/bitstream: document the double volatile
Michael Niedermayer
git at videolan.org
Sat Jun 21 17:05:45 CEST 2014
ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Jun 21 14:55:32 2014 +0200| [a2de7b1bd5045bc244ddebbf81f353f03dff2a9b] | committer: Michael Niedermayer
avcodec/bitstream: document the double volatile
Suggested-by: Reimar Döffinger <Reimar.Doeffinger at gmx.de>
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a2de7b1bd5045bc244ddebbf81f353f03dff2a9b
---
libavcodec/bitstream.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/bitstream.c b/libavcodec/bitstream.c
index eb36c6f..aae2dcd 100644
--- a/libavcodec/bitstream.c
+++ b/libavcodec/bitstream.c
@@ -163,7 +163,7 @@ static int build_table(VLC *vlc, int table_nb_bits, int nb_codes,
int table_size, table_index, index, code_prefix, symbol, subtable_bits;
int i, j, k, n, nb, inc;
uint32_t code;
- volatile VLC_TYPE (* volatile table)[2];
+ volatile VLC_TYPE (* volatile table)[2]; // the double volatile is needed to prevent a internal compiler error in gcc 4.2
table_size = 1 << table_nb_bits;
if (table_nb_bits > 30)
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