avutil: Add av_get_default_channel_layout()

[ffmpeg] / libavutil / log.c

diff --git a/libavutil/log.c b/libavutil/log.c
index 3a96a850c2c47b62433301f38a9520635897ad11..29693559696eb96c579a6b82a1e33e9c95761f26 100644 (file)
--- a/libavutil/log.c
+++ b/libavutil/log.c
@@ -2,55 +2,149 @@
  * log functions
  * Copyright (c) 2003 Michel Bardiaux
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**
- * @file log.c
+ * @file
  * logging functions
  */
 
+#include <unistd.h>
+#include <stdlib.h>
+#include "avstring.h"
 #include "avutil.h"
 #include "log.h"
 
-int av_log_level = AV_LOG_INFO;
+static int av_log_level = AV_LOG_INFO;
+static int flags;
+
+#if defined(_WIN32) && !defined(__MINGW32CE__)
+#include <windows.h>
+static const uint8_t color[] = { 12, 12, 12, 14, 7, 7, 7 };
+static int16_t background, attr_orig;
+static HANDLE con;
+#define set_color(x)  SetConsoleTextAttribute(con, background | color[x])
+#define reset_color() SetConsoleTextAttribute(con, attr_orig)
+#else
+static const uint8_t color[] = { 0x41, 0x41, 0x11, 0x03, 9, 9, 9 };
+#define set_color(x)  fprintf(stderr, "\033[%d;3%dm", color[x] >> 4, color[x]&15)
+#define reset_color() fprintf(stderr, "\033[0m")
+#endif
+static int use_color = -1;
+
+#undef fprintf
+static void colored_fputs(int level, const char *str)
+{
+    if (use_color < 0) {
+#if defined(_WIN32) && !defined(__MINGW32CE__)
+        CONSOLE_SCREEN_BUFFER_INFO con_info;
+        con = GetStdHandle(STD_ERROR_HANDLE);
+        use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") &&
+                    !getenv("AV_LOG_FORCE_NOCOLOR");
+        if (use_color) {
+            GetConsoleScreenBufferInfo(con, &con_info);
+            attr_orig  = con_info.wAttributes;
+            background = attr_orig & 0xF0;
+        }
+#elif HAVE_ISATTY
+        use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
+                    (getenv("TERM") && isatty(2) ||
+                     getenv("AV_LOG_FORCE_COLOR"));
+#else
+        use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
+                   !getenv("AV_LOG_FORCE_NOCOLOR");
+#endif
+    }
+
+    if (use_color) {
+        set_color(level);
+    }
+    fputs(str, stderr);
+    if (use_color) {
+        reset_color();
+    }
+}
+
+const char *av_default_item_name(void *ptr)
+{
+    return (*(AVClass **) ptr)->class_name;
+}
 
 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)
+    static int print_prefix = 1;
+    static int count;
+    static char prev[1024];
+    char line[1024];
+    static int is_atty;
+    AVClass* avc = ptr ? *(AVClass **) ptr : NULL;
+    if (level > av_log_level)
         return;
+    line[0] = 0;
 #undef fprintf
-    if(print_prefix && avc) {
-        fprintf(stderr, "[%s @ %p]", avc->item_name(ptr), ptr);
+    if (print_prefix && avc) {
+        if (avc->parent_log_context_offset) {
+            AVClass** parent = *(AVClass ***) (((uint8_t *) ptr) +
+                                   avc->parent_log_context_offset);
+            if (parent && *parent) {
+                snprintf(line, sizeof(line), "[%s @ %p] ",
+                         (*parent)->item_name(parent), parent);
+            }
+        }
+        snprintf(line + strlen(line), sizeof(line) - strlen(line), "[%s @ %p] ",
+                 avc->item_name(ptr), ptr);
     }
 
-    print_prefix= strstr(fmt, "\n") != NULL;
+    vsnprintf(line + strlen(line), sizeof(line) - strlen(line), fmt, vl);
+
+    print_prefix = strlen(line) && line[strlen(line) - 1] == '\n';
 
-    vfprintf(stderr, fmt, vl);
+#if HAVE_ISATTY
+    if (!is_atty)
+        is_atty = isatty(2) ? 1 : -1;
+#endif
+
+    if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) &&
+        !strncmp(line, prev, sizeof line)) {
+        count++;
+        if (is_atty == 1)
+            fprintf(stderr, "    Last message repeated %d times\r", count);
+        return;
+    }
+    if (count > 0) {
+        fprintf(stderr, "    Last message repeated %d times\n", count);
+        count = 0;
+    }
+    colored_fputs(av_clip(level >> 3, 0, 6), line);
+    av_strlcpy(prev, line, sizeof line);
 }
 
-static void (*av_log_callback)(void*, int, const char*, va_list) = av_log_default_callback;
+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, ...)
 {
+    AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
     va_list vl;
     va_start(vl, fmt);
+    if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
+        avc->log_level_offset_offset && level >= AV_LOG_FATAL)
+        level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
     av_vlog(avcl, level, fmt, vl);
     va_end(vl);
 }
@@ -70,6 +164,11 @@ void av_log_set_level(int level)
     av_log_level = level;
 }
 
+void av_log_set_flags(int arg)
+{
+    flags = arg;
+}
+
 void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
 {
     av_log_callback = callback;