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Diffstat (limited to 'libavcodec/rangecoder.c')
-rw-r--r--libavcodec/rangecoder.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/libavcodec/rangecoder.c b/libavcodec/rangecoder.c
index af0a8c009e..e4c5763e4d 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
*/
@@ -34,6 +34,7 @@
#include <string.h>
#include "libavutil/attributes.h"
+#include "libavutil/avassert.h"
#include "avcodec.h"
#include "rangecoder.h"
#include "bytestream.h"
@@ -55,7 +56,7 @@ av_cold void ff_init_range_decoder(RangeCoder *c, const uint8_t *buf,
/* cast to avoid compiler warning */
ff_init_range_encoder(c, (uint8_t *)buf, buf_size);
- c->low = bytestream_get_be16(&c->bytestream);
+ c->low = bytestream_get_be16((const uint8_t **)&c->bytestream);
}
void ff_build_rac_states(RangeCoder *c, int factor, int max_p)
@@ -107,8 +108,8 @@ 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;
}
@@ -119,11 +120,12 @@ int ff_rac_terminate(RangeCoder *c)
#include "libavutil/lfg.h"
#include "libavutil/log.h"
+static uint8_t b[9 * SIZE];
+static uint8_t r[9 * SIZE];
+
int main(void)
{
RangeCoder c;
- uint8_t b[9 * SIZE];
- uint8_t r[9 * SIZE];
int i;
uint8_t state[10];
AVLFG prng;
@@ -131,7 +133,7 @@ int main(void)
av_lfg_init(&prng, 1);
ff_init_range_encoder(&c, b, SIZE);
- ff_build_rac_states(&c, 0.05 * (1LL << 32), 128 + 64 + 32 + 16);
+ ff_build_rac_states(&c, (1LL << 32) / 20, 128 + 64 + 32 + 16);
memset(state, 128, sizeof(state));