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-rw-r--r--libavcodec/rangecoder.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/libavcodec/rangecoder.c b/libavcodec/rangecoder.c
index 4c4731d..0d53bef 100644
--- a/libavcodec/rangecoder.c
+++ b/libavcodec/rangecoder.c
@@ -2,20 +2,20 @@
* Range coder
* Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -33,6 +33,7 @@
#include <string.h>
#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
@@ -57,6 +58,11 @@ av_cold void ff_init_range_decoder(RangeCoder *c, const uint8_t *buf,
c->low = AV_RB16(c->bytestream);
c->bytestream += 2;
+ c->overread = 0;
+ if (c->low >= 0xFF00) {
+ c->low = 0xFF00;
+ c->bytestream_end = c->bytestream;
+ }
}
void ff_build_rac_states(RangeCoder *c, int factor, int max_p)
@@ -108,8 +114,8 @@ int ff_rac_terminate(RangeCoder *c)
c->range = 0xFF;
renorm_encoder(c);
- assert(c->low == 0);
- assert(c->range >= 0x100);
+ av_assert1(c->low == 0);
+ av_assert1(c->range >= 0x100);
return c->bytestream - c->bytestream_start;
}
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