API changes, most recent first:
+2012-10-xx - xxxxxxx - lavu 51.43.0 - aes.h, md5.h, sha.h, tree.h
+ Add functions for allocating the opaque contexts for the algorithms,
+ deprecate the context size variables.
+
2012-10-xx - xxxxxxx - lavf 54.18.0 - avio.h
Add avio_closep to complement avio_close.
int rounds;
} AVAES;
+#if FF_API_CONTEXT_SIZE
const int av_aes_size= sizeof(AVAES);
+#endif
+
+struct AVAES *av_aes_alloc(void)
+{
+ return av_mallocz(sizeof(struct AVAES));
+}
static const uint8_t rcon[10] = {
0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36
#include <stdint.h>
+#include "attributes.h"
+#include "version.h"
+
/**
* @defgroup lavu_aes AES
* @ingroup lavu_crypto
* @{
*/
-extern const int av_aes_size;
+#if FF_API_CONTEXT_SIZE
+extern attribute_deprecated const int av_aes_size;
+#endif
struct AVAES;
/**
+ * Allocate an AVAES context.
+ */
+struct AVAES *av_aes_alloc(void);
+
+/**
* Initialize an AVAES context.
* @param key_bits 128, 192 or 256
* @param decrypt 0 for encryption, 1 for decryption
#include "bswap.h"
#include "intreadwrite.h"
#include "md5.h"
+#include "mem.h"
typedef struct AVMD5{
uint64_t len;
uint32_t ABCD[4];
} AVMD5;
+#if FF_API_CONTEXT_SIZE
const int av_md5_size = sizeof(AVMD5);
+#endif
+
+struct AVMD5 *av_md5_alloc(void)
+{
+ return av_mallocz(sizeof(struct AVMD5));
+}
static const uint8_t S[4][4] = {
{ 7, 12, 17, 22 }, /* round 1 */
#include <stdint.h>
+#include "attributes.h"
+#include "version.h"
+
/**
* @defgroup lavu_md5 MD5
* @ingroup lavu_crypto
* @{
*/
-extern const int av_md5_size;
+#if FF_API_CONTEXT_SIZE
+extern attribute_deprecated const int av_md5_size;
+#endif
struct AVMD5;
+struct AVMD5 *av_md5_alloc(void);
void av_md5_init(struct AVMD5 *ctx);
void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, const int len);
void av_md5_final(struct AVMD5 *ctx, uint8_t *dst);
#include "bswap.h"
#include "sha.h"
#include "intreadwrite.h"
+#include "mem.h"
/** hash context */
typedef struct AVSHA {
void (*transform)(uint32_t *state, const uint8_t buffer[64]);
} AVSHA;
+#if FF_API_CONTEXT_SIZE
const int av_sha_size = sizeof(AVSHA);
+#endif
+
+struct AVSHA *av_sha_alloc(void)
+{
+ return av_mallocz(sizeof(struct AVSHA));
+}
#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
#include <stdint.h>
+#include "attributes.h"
+#include "version.h"
+
/**
* @defgroup lavu_sha SHA
* @ingroup lavu_crypto
* @{
*/
-extern const int av_sha_size;
+#if FF_API_CONTEXT_SIZE
+extern attribute_deprecated const int av_sha_size;
+#endif
struct AVSHA;
/**
+ * Allocate an AVSHA context.
+ */
+struct AVSHA *av_sha_alloc(void);
+
+/**
* Initialize SHA-1 or SHA-2 hashing.
*
* @param context pointer to the function context (of size av_sha_size)
int state;
} AVTreeNode;
+#if FF_API_CONTEXT_SIZE
const int av_tree_node_size = sizeof(AVTreeNode);
+#endif
+
+struct AVTreeNode *av_tree_node_alloc(void)
+{
+ return av_mallocz(sizeof(struct AVTreeNode));
+}
void *av_tree_find(const AVTreeNode *t, void *key,
int (*cmp)(void *key, const void *b), void *next[2])
#ifndef AVUTIL_TREE_H
#define AVUTIL_TREE_H
+#include "attributes.h"
+#include "version.h"
+
/**
* @addtogroup lavu_tree AVTree
* @ingroup lavu_data
struct AVTreeNode;
-extern const int av_tree_node_size;
+#if FF_API_CONTEXT_SIZE
+extern attribute_deprecated const int av_tree_node_size;
+#endif
+
+/**
+ * Allocate an AVTreeNode.
+ */
+struct AVTreeNode *av_tree_node_alloc(void);
/**
* Find an element.
*/
#define LIBAVUTIL_VERSION_MAJOR 51
-#define LIBAVUTIL_VERSION_MINOR 42
+#define LIBAVUTIL_VERSION_MINOR 43
#define LIBAVUTIL_VERSION_MICRO 0
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
#ifndef FF_API_PIX_FMT
#define FF_API_PIX_FMT (LIBAVUTIL_VERSION_MAJOR < 52)
#endif
+#ifndef FF_API_CONTEXT_SIZE
+#define FF_API_CONTEXT_SIZE (LIBAVUTIL_VERSION_MAJOR < 52)
+#endif
/**
* @}