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-rw-r--r--libavcodec/bytestream.h21
1 files changed, 17 insertions, 4 deletions
diff --git a/libavcodec/bytestream.h b/libavcodec/bytestream.h
index 0f89558..f245859 100644
--- a/libavcodec/bytestream.h
+++ b/libavcodec/bytestream.h
@@ -3,20 +3,20 @@
* copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
* Copyright (c) 2012 Aneesh Dogra (lionaneesh) <lionaneesh@gmail.com>
*
- * 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
*/
@@ -26,6 +26,7 @@
#include <stdint.h>
#include <string.h>
+#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
@@ -131,6 +132,7 @@ static av_always_inline void bytestream2_init(GetByteContext *g,
const uint8_t *buf,
int buf_size)
{
+ av_assert0(buf_size >= 0);
g->buffer = buf;
g->buffer_start = buf;
g->buffer_end = buf + buf_size;
@@ -140,6 +142,7 @@ static av_always_inline void bytestream2_init_writer(PutByteContext *p,
uint8_t *buf,
int buf_size)
{
+ av_assert0(buf_size >= 0);
p->buffer = buf;
p->buffer_start = buf;
p->buffer_end = buf + buf_size;
@@ -190,6 +193,16 @@ static av_always_inline int bytestream2_tell_p(PutByteContext *p)
return (int)(p->buffer - p->buffer_start);
}
+static av_always_inline int bytestream2_size(GetByteContext *g)
+{
+ return (int)(g->buffer_end - g->buffer_start);
+}
+
+static av_always_inline int bytestream2_size_p(PutByteContext *p)
+{
+ return (int)(p->buffer_end - p->buffer_start);
+}
+
static av_always_inline int bytestream2_seek(GetByteContext *g,
int offset,
int whence)
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