Add av_clip_uintp2() function

[ffmpeg] / libavcodec / bytestream.h

diff --git a/libavcodec/bytestream.h b/libavcodec/bytestream.h
index ae5438b49c7fe9021d16c8e664a1cb0cc685d374..98f00879be29cf47ede9f7dcdf720c8478630f66 100644 (file)
--- a/libavcodec/bytestream.h
+++ b/libavcodec/bytestream.h
@@ -2,88 +2,70 @@
  * Bytestream functions
  * copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifndef FFMPEG_BYTESTREAM_H
-#define FFMPEG_BYTESTREAM_H
+#ifndef AVCODEC_BYTESTREAM_H
+#define AVCODEC_BYTESTREAM_H
 
-static av_always_inline unsigned int bytestream_get_le32(uint8_t **b)
-{
-    (*b) += 4;
-    return AV_RL32(*b - 4);
-}
+#include <string.h>
+#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
 
-static av_always_inline unsigned int bytestream_get_le16(uint8_t **b)
-{
-    (*b) += 2;
-    return AV_RL16(*b - 2);
+#define DEF_T(type, name, bytes, read, write)                             \
+static av_always_inline type bytestream_get_ ## name(const uint8_t **b){\
+    (*b) += bytes;\
+    return read(*b - bytes);\
+}\
+static av_always_inline void bytestream_put_ ##name(uint8_t **b, const type value){\
+    write(*b, value);\
+    (*b) += bytes;\
 }
 
-static av_always_inline unsigned int bytestream_get_byte(uint8_t **b)
-{
-    (*b)++;
-    return (*b)[-1];
-}
+#define DEF(name, bytes, read, write) \
+    DEF_T(unsigned int, name, bytes, read, write)
+#define DEF64(name, bytes, read, write) \
+    DEF_T(uint64_t, name, bytes, read, write)
+
+DEF64(le64, 8, AV_RL64, AV_WL64)
+DEF  (le32, 4, AV_RL32, AV_WL32)
+DEF  (le24, 3, AV_RL24, AV_WL24)
+DEF  (le16, 2, AV_RL16, AV_WL16)
+DEF64(be64, 8, AV_RB64, AV_WB64)
+DEF  (be32, 4, AV_RB32, AV_WB32)
+DEF  (be24, 3, AV_RB24, AV_WB24)
+DEF  (be16, 2, AV_RB16, AV_WB16)
+DEF  (byte, 1, AV_RB8 , AV_WB8 )
 
-static av_always_inline unsigned int bytestream_get_buffer(uint8_t **b, uint8_t *dst, unsigned int size)
+#undef DEF
+#undef DEF64
+#undef DEF_T
+
+static av_always_inline unsigned int bytestream_get_buffer(const uint8_t **b, uint8_t *dst, unsigned int size)
 {
     memcpy(dst, *b, size);
     (*b) += size;
     return size;
 }
 
-static av_always_inline void bytestream_put_be32(uint8_t **b, const unsigned int value)
-{
-    *(*b)++ = value >> 24;
-    *(*b)++ = value >> 16;
-    *(*b)++ = value >> 8;
-    *(*b)++ = value;
-};
-
-static av_always_inline void bytestream_put_be16(uint8_t **b, const unsigned int value)
-{
-    *(*b)++ = value >> 8;
-    *(*b)++ = value;
-}
-
-static av_always_inline void bytestream_put_le32(uint8_t **b, const unsigned int value)
-{
-    *(*b)++ = value;
-    *(*b)++ = value >> 8;
-    *(*b)++ = value >> 16;
-    *(*b)++ = value >> 24;
-}
-
-static av_always_inline void bytestream_put_le16(uint8_t **b, const unsigned int value)
-{
-    *(*b)++ = value;
-    *(*b)++ = value >> 8;
-}
-
-static av_always_inline void bytestream_put_byte(uint8_t **b, const unsigned int value)
-{
-    *(*b)++ = value;
-}
-
 static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
 {
     memcpy(*b, src, size);
     (*b) += size;
 }
 
-#endif /* FFMPEG_BYTESTREAM_H */
+#endif /* AVCODEC_BYTESTREAM_H */