avio: add a destructor for AVIOContext

[ffmpeg] / libavutil / internal.h

diff --git a/libavutil/internal.h b/libavutil/internal.h
index 33a52266c5ef715d9c6d07daab97c017f27242e8..d96762c75db8a5aec74281c6423866449fa082e4 100644 (file)
--- a/libavutil/internal.h
+++ b/libavutil/internal.h
@@ -36,8 +36,9 @@
 #include <assert.h>
 #include "config.h"
 #include "attributes.h"
-#include "timer.h"
 #include "dict.h"
+#include "macros.h"
+#include "pixfmt.h"
 
 #if ARCH_X86
 #   include "x86/emms.h"
@@ -77,14 +78,17 @@
 #    define FF_ENABLE_DEPRECATION_WARNINGS
 #endif
 
-#ifndef INT_BIT
-#    define INT_BIT (CHAR_BIT * sizeof(int))
-#endif
-
 // Some broken preprocessors need a second expansion
 // to be forced to tokenize __VA_ARGS__
 #define E1(x) x
 
+/* Check if the hard coded offset of a struct member still matches reality.
+ * Induce a compilation failure if not.
+ */
+#define AV_CHECK_OFFSET(s, m, o) struct check_##o {    \
+        int x_##o[offsetof(s, m) == o? 1: -1];         \
+    }
+
 #define LOCAL_ALIGNED_A(a, t, v, s, o, ...)             \
     uint8_t la_##v[sizeof(t s o) + (a)];                \
     t (*v) o = (void *)FFALIGN((uintptr_t)la_##v, a)
@@ -107,10 +111,16 @@
 #   define LOCAL_ALIGNED_16(t, v, ...) LOCAL_ALIGNED(16, t, v, __VA_ARGS__)
 #endif
 
+#if HAVE_LOCAL_ALIGNED_32
+#   define LOCAL_ALIGNED_32(t, v, ...) E1(LOCAL_ALIGNED_D(32, t, v, __VA_ARGS__,,))
+#else
+#   define LOCAL_ALIGNED_32(t, v, ...) LOCAL_ALIGNED(32, t, v, __VA_ARGS__)
+#endif
+
 #define FF_ALLOC_OR_GOTO(ctx, p, size, label)\
 {\
     p = av_malloc(size);\
-    if (p == NULL && (size) != 0) {\
+    if (!(p) && (size) != 0) {\
         av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
         goto label;\
     }\
@@ -119,7 +129,7 @@
 #define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)\
 {\
     p = av_mallocz(size);\
-    if (p == NULL && (size) != 0) {\
+    if (!(p) && (size) != 0) {\
         av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\
         goto label;\
     }\
@@ -127,11 +137,6 @@
 
 #include "libm.h"
 
-#if defined(_MSC_VER)
-#pragma comment(linker, "/include:"EXTERN_PREFIX"avpriv_strtod")
-#pragma comment(linker, "/include:"EXTERN_PREFIX"avpriv_snprintf")
-#endif
-
 /**
  * Return NULL if CONFIG_SMALL is true, otherwise the argument
  * without modification. Used to disable the definition of strings
@@ -205,6 +210,12 @@ void avpriv_request_sample(void *avc,
                            const char *msg, ...) av_printf_format(2, 3);
 
 #if HAVE_LIBC_MSVCRT
+#include <crtversion.h>
+#if defined(_VC_CRT_MAJOR_VERSION) && _VC_CRT_MAJOR_VERSION < 14
+#pragma comment(linker, "/include:"EXTERN_PREFIX"avpriv_strtod")
+#pragma comment(linker, "/include:"EXTERN_PREFIX"avpriv_snprintf")
+#endif
+
 #define avpriv_open ff_open
 #endif
 
@@ -213,4 +224,6 @@ void avpriv_request_sample(void *avc,
  */
 int avpriv_open(const char *filename, int flags, ...);
 
+int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt);
+
 #endif /* AVUTIL_INTERNAL_H */