Move av_log() & friends to libavutil

Originally committed as revision 5781 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 74 insertions, 0 deletions

diff --git a/libavutil/log.c b/libavutil/log.c
new file mode 100644
index 0000000000..7786ea211d
--- /dev/null
+++ b/libavutil/log.c
@@ -0,0 +1,74 @@
+/*
+ * log functions
+ * Copyright (c) 2003 Michel Bardiaux
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file log.c
+ * log.
+ */
+
+#include "avutil.h"
+
+static int av_log_level = AV_LOG_INFO;
+
+static void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
+{
+    static int print_prefix=1;
+    AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
+    if(level>av_log_level)
+        return;
+#undef fprintf
+    if(print_prefix && avc) {
+            fprintf(stderr, "[%s @ %p]", avc->item_name(ptr), avc);
+    }
+#define fprintf please_use_av_log
+
+    print_prefix= strstr(fmt, "\n") != NULL;
+
+    vfprintf(stderr, fmt, vl);
+}
+
+static void (*av_log_callback)(void*, int, const char*, va_list) = av_log_default_callback;
+
+void av_log(void* avcl, int level, const char *fmt, ...)
+{
+    va_list vl;
+    va_start(vl, fmt);
+    av_vlog(avcl, level, fmt, vl);
+    va_end(vl);
+}
+
+void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
+{
+    av_log_callback(avcl, level, fmt, vl);
+}
+
+int av_log_get_level(void)
+{
+    return av_log_level;
+}
+
+void av_log_set_level(int level)
+{
+    av_log_level = level;
+}
+
+void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
+{
+    av_log_callback = callback;
+}