Merge commit 'e002e3291e6dc7953f843abf56fc14f08f238b21'

* commit 'e002e3291e6dc7953f843abf56fc14f08f238b21':
  Use the new aes/md5/sha/tree allocation functions
  avutil: Add functions for allocating opaque contexts for algorithms
  svq3: fix pointer type warning
  svq3: replace unsafe pointer casting with intreadwrite macros
  parseutils-test: various cleanups

Conflicts:
	doc/APIchanges
	libavcodec/svq3.c
	libavutil/parseutils.c
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>

10 files changed, 80 insertions, 10 deletions

diff --git a/libavutil/aes.c b/libavutil/aes.c
index 7950902280..555cbb82cf 100644
--- a/libavutil/aes.c
+++ b/libavutil/aes.c
@@ -39,7 +39,14 @@ typedef struct AVAES {
     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
diff --git a/libavutil/aes.h b/libavutil/aes.h
index bafa4cc3c4..9c1a54e036 100644
--- a/libavutil/aes.h
+++ b/libavutil/aes.h
@@ -23,17 +23,27 @@
 
 #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
diff --git a/libavutil/md5.c b/libavutil/md5.c
index 00447f92f0..ce8400fdac 100644
--- a/libavutil/md5.c
+++ b/libavutil/md5.c
@@ -34,6 +34,7 @@
 #include "bswap.h"
 #include "intreadwrite.h"
 #include "md5.h"
+#include "mem.h"
 
 typedef struct AVMD5{
     uint64_t len;
@@ -41,7 +42,14 @@ typedef struct AVMD5{
     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 */
diff --git a/libavutil/md5.h b/libavutil/md5.h
index a3534edad0..69199cc53c 100644
--- a/libavutil/md5.h
+++ b/libavutil/md5.h
@@ -23,16 +23,22 @@
 
 #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);
diff --git a/libavutil/parseutils.c b/libavutil/parseutils.c
index 54231c0b9c..84bb9f7876 100644
--- a/libavutil/parseutils.c
+++ b/libavutil/parseutils.c
@@ -690,7 +690,7 @@ int main(void)
     printf("Testing av_parse_video_rate()\n");
     {
         int i;
-        const char *rates[] = {
+        static const char *const rates[] = {
             "-inf",
             "inf",
             "nan",
@@ -720,7 +720,7 @@ int main(void)
 
         for (i = 0; i < FF_ARRAY_ELEMS(rates); i++) {
             int ret;
-            AVRational q = (AVRational){0, 0};
+            AVRational q = { 0, 0 };
             ret = av_parse_video_rate(&q, rates[i]);
             printf("'%s' -> %d/%d %s\n",
                    rates[i], q.num, q.den, ret ? "ERROR" : "OK");
@@ -731,7 +731,7 @@ int main(void)
     {
         int i;
         uint8_t rgba[4];
-        const char *color_names[] = {
+        static const char *const color_names[] = {
             "bikeshed",
             "RaNdOm",
             "foo",
@@ -774,7 +774,8 @@ int main(void)
 
         for (i = 0;  i < FF_ARRAY_ELEMS(color_names); i++) {
             if (av_parse_color(rgba, color_names[i], -1, NULL) >= 0)
-                printf("%s -> R(%d) G(%d) B(%d) A(%d)\n", color_names[i], rgba[0], rgba[1], rgba[2], rgba[3]);
+                printf("%s -> R(%d) G(%d) B(%d) A(%d)\n",
+                       color_names[i], rgba[0], rgba[1], rgba[2], rgba[3]);
             else
                 printf("%s -> error\n", color_names[i]);
         }
diff --git a/libavutil/sha.c b/libavutil/sha.c
index c5d13c127a..e3a956a4b5 100644
--- a/libavutil/sha.c
+++ b/libavutil/sha.c
@@ -26,6 +26,7 @@
 #include "bswap.h"
 #include "sha.h"
 #include "intreadwrite.h"
+#include "mem.h"
 
 /** hash context */
 typedef struct AVSHA {
@@ -37,7 +38,14 @@ 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))))
 
diff --git a/libavutil/sha.h b/libavutil/sha.h
index d891cae87f..744c66f5d9 100644
--- a/libavutil/sha.h
+++ b/libavutil/sha.h
@@ -23,17 +23,27 @@
 
 #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)
diff --git a/libavutil/tree.c b/libavutil/tree.c
index 4206539c37..cba6fe8c78 100644
--- a/libavutil/tree.c
+++ b/libavutil/tree.c
@@ -28,7 +28,14 @@ typedef struct AVTreeNode {
     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])
@@ -213,7 +220,7 @@ int main (void)
         }
         av_log(NULL, AV_LOG_ERROR, "inserting %4d\n", j);
         if (!node)
-            node = av_mallocz(av_tree_node_size);
+            node = av_tree_node_alloc();
         av_tree_insert(&root, (void *) (j + 1), cmp, &node);
 
         j = av_lfg_get(&prng) % 86294;
diff --git a/libavutil/tree.h b/libavutil/tree.h
index 12f76f011c..71874967f9 100644
--- a/libavutil/tree.h
+++ b/libavutil/tree.h
@@ -27,6 +27,9 @@
 #ifndef AVUTIL_TREE_H
 #define AVUTIL_TREE_H
 
+#include "attributes.h"
+#include "version.h"
+
 /**
  * @addtogroup lavu_tree AVTree
  * @ingroup lavu_data
@@ -40,7 +43,14 @@
 
 
 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.
diff --git a/libavutil/version.h b/libavutil/version.h
index d807a1955c..6c313e4202 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -39,7 +39,7 @@
  */
 
 #define LIBAVUTIL_VERSION_MAJOR 51
-#define LIBAVUTIL_VERSION_MINOR 74
+#define LIBAVUTIL_VERSION_MINOR 75
 #define LIBAVUTIL_VERSION_MICRO 100
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
@@ -84,6 +84,9 @@
 #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
 
 /**
  * @}