1 files changed, 66 insertions, 6 deletions

diff --git a/libavutil/utils.c b/libavutil/utils.c
index c8c161d..aafd3b9 100644
--- a/libavutil/utils.c
+++ b/libavutil/utils.c
@@ -1,23 +1,26 @@
 /*
- * 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
  */
 
 #include "config.h"
 #include "avutil.h"
+#include "avassert.h"
+#include "samplefmt.h"
+#include "pixdesc.h"
 
 /**
  * @file
@@ -26,18 +29,56 @@
 
 unsigned avutil_version(void)
 {
+    static int checks_done;
+    if (checks_done)
+        return LIBAVUTIL_VERSION_INT;
+
+    av_assert0(AV_PIX_FMT_VDA_VLD == 81); //check if the pix fmt enum has not had anything inserted or removed by mistake
+    av_assert0(AV_SAMPLE_FMT_DBLP == 9);
+    av_assert0(AVMEDIA_TYPE_ATTACHMENT == 4);
+    av_assert0(AV_PICTURE_TYPE_BI == 7);
+    av_assert0(LIBAVUTIL_VERSION_MICRO >= 100);
+    av_assert0(HAVE_MMX2 == HAVE_MMXEXT);
+
+    av_assert0(((size_t)-1) > 0); // C guarantees this but if false on a platform we care about revert at least b284e1ffe343d6697fb950d1ee517bafda8a9844
+
+    if (av_sat_dadd32(1, 2) != 5) {
+        av_log(NULL, AV_LOG_FATAL, "Libavutil has been build with a broken binutils, please upgrade binutils and rebuild\n");
+        abort();
+    }
+
+    if (llrint(1LL<<60) != 1LL<<60) {
+        av_log(NULL, AV_LOG_ERROR, "Libavutil has been linked to a broken llrint()\n");
+    }
+
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0
+    ff_check_pixfmt_descriptors();
+#endif
+    checks_done = 1;
     return LIBAVUTIL_VERSION_INT;
 }
 
 const char *avutil_configuration(void)
 {
-    return LIBAV_CONFIGURATION;
+    return FFMPEG_CONFIGURATION;
 }
 
 const char *avutil_license(void)
 {
 #define LICENSE_PREFIX "libavutil license: "
-    return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+    return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+}
+
+const char *av_get_media_type_string(enum AVMediaType media_type)
+{
+    switch (media_type) {
+    case AVMEDIA_TYPE_VIDEO:      return "video";
+    case AVMEDIA_TYPE_AUDIO:      return "audio";
+    case AVMEDIA_TYPE_DATA:       return "data";
+    case AVMEDIA_TYPE_SUBTITLE:   return "subtitle";
+    case AVMEDIA_TYPE_ATTACHMENT: return "attachment";
+    default:                      return NULL;
+    }
 }
 
 char av_get_picture_type_char(enum AVPictureType pict_type)
@@ -54,6 +95,25 @@ char av_get_picture_type_char(enum AVPictureType pict_type)
     }
 }
 
+unsigned av_int_list_length_for_size(unsigned elsize,
+                                     const void *list, uint64_t term)
+{
+    unsigned i;
+
+    if (!list)
+        return 0;
+#define LIST_LENGTH(type) \
+    { type t = term, *l = (type *)list; for (i = 0; l[i] != t; i++); }
+    switch (elsize) {
+    case 1: LIST_LENGTH(uint8_t);  break;
+    case 2: LIST_LENGTH(uint16_t); break;
+    case 4: LIST_LENGTH(uint32_t); break;
+    case 8: LIST_LENGTH(uint64_t); break;
+    default: av_assert0(!"valid element size");
+    }
+    return i;
+}
+
 AVRational av_get_time_base_q(void)
 {
     return (AVRational){1, AV_TIME_BASE};