Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavutil / internal.h

diff --git a/libavutil/internal.h b/libavutil/internal.h
index e890ae70830132ceefd8b0e8415c00fe7d8b9c26..eecc1280df9244b978718fafc0f2a4369930cc64 100644 (file)
--- a/libavutil/internal.h
+++ b/libavutil/internal.h
@@ -1,20 +1,20 @@
 /*
  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
  *
- * 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
  */
 
@@ -37,6 +37,13 @@
 #include "config.h"
 #include "attributes.h"
 #include "timer.h"
+#include "cpu.h"
+#include "dict.h"
+
+struct AVDictionary {
+    int count;
+    AVDictionaryEntry *elems;
+};
 
 #ifndef attribute_align_arg
 #if ARCH_X86_32 && AV_GCC_VERSION_AT_LEAST(4,2)
@@ -141,7 +148,6 @@
 #define strncpy strncpy_is_forbidden_due_to_security_issues_use_av_strlcpy
 #undef  exit
 #define exit exit_is_forbidden
-#ifndef LIBAVFORMAT_BUILD
 #undef  printf
 #define printf please_use_av_log_instead_of_printf
 #undef  fprintf
@@ -150,7 +156,6 @@
 #define puts please_use_av_log_instead_of_puts
 #undef  perror
 #define perror please_use_av_log_instead_of_perror
-#endif
 
 #define FF_ALLOC_OR_GOTO(ctx, p, size, label)\
 {\
@@ -183,12 +188,11 @@
 #   define NULL_IF_CONFIG_SMALL(x) x
 #endif
 
-
 /**
  * Define a function with only the non-default version specified.
  *
  * On systems with ELF shared libraries, all symbols exported from
- * Libav libraries are tagged with the name and major version of the
+ * FFmpeg libraries are tagged with the name and major version of the
  * library to which they belong.  If a function is moved from one
  * library to another, a wrapper must be retained in the original
  * location to preserve binary compatibility.
@@ -223,4 +227,19 @@
 #   define ONLY_IF_THREADS_ENABLED(x) NULL
 #endif
 
+#if HAVE_MMX
+/**
+ * Empty mmx state.
+ * this must be called between any dsp function and float/double code.
+ * for example sin(); dsp->idct_put(); emms_c(); cos()
+ */
+static av_always_inline void emms_c(void)
+{
+    if(av_get_cpu_flags() & AV_CPU_FLAG_MMX)
+        __asm__ volatile ("emms" ::: "memory");
+}
+#else /* HAVE_MMX */
+#define emms_c()
+#endif /* HAVE_MMX */
+
 #endif /* AVUTIL_INTERNAL_H */