* 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 libavutil/log.c
+ * @file
* logging functions
*/
+#include "config.h"
+
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if HAVE_IO_H
+#include <io.h>
+#endif
+#include <stdarg.h>
+#include <stdlib.h>
+#include "avstring.h"
#include "avutil.h"
+#include "common.h"
+#include "internal.h"
#include "log.h"
-int av_log_level = AV_LOG_INFO;
+#if HAVE_VALGRIND_VALGRIND_H
+#include <valgrind/valgrind.h>
+/* this is the log level at which valgrind will output a full backtrace */
+#define BACKTRACE_LOGLEVEL AV_LOG_ERROR
+#endif
+
+static int av_log_level = AV_LOG_INFO;
+static int flags;
+
+#define NB_LEVELS 8
+#if HAVE_SETCONSOLETEXTATTRIBUTE
+#include <windows.h>
+static const uint8_t color[NB_LEVELS] = { 12, 12, 12, 14, 7, 10, 11, 8};
+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)
+#define print_256color(x)
+#else
+static const uint8_t color[NB_LEVELS] = {
+ 0x41, 0x41, 0x11, 0x03, 9, 0x02, 0x06, 0x07
+};
+#define set_color(x) fprintf(stderr, "\033[%d;3%dm", color[x] >> 4, color[x]&15)
+#define print_256color(x) fprintf(stderr, "\033[38;5;%dm", x)
+#define reset_color() fprintf(stderr, "\033[0m")
+#endif
+static int use_color = -1;
+
+static void check_color_terminal(void)
+{
+#if HAVE_SETCONSOLETEXTATTRIBUTE
+ 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
+ char *term = getenv("TERM");
+ use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
+ (getenv("TERM") && isatty(2) || getenv("AV_LOG_FORCE_COLOR"));
+ if (use_color)
+ use_color += term && strstr(term, "256color");
+#else
+ use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
+ !getenv("AV_LOG_FORCE_NOCOLOR");
+#endif
+}
-void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
+static void colored_fputs(int level, int tint, const char *str)
{
- static int print_prefix=1;
- AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
- if(level>av_log_level)
+ if (use_color < 0)
+ check_color_terminal();
+
+ switch (use_color) {
+ case 1:
+ set_color(level);
+ break;
+ case 2:
+ set_color(level);
+ if (tint)
+ print_256color(tint);
+ break;
+ default:
+ break;
+ }
+ 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 *avcl, int level, const char *fmt, va_list vl)
+{
+ static int print_prefix = 1;
+ static int count;
+ static char prev[1024];
+ char line[1024];
+ static int is_atty;
+ AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
+ unsigned tint = level & 0xff00;
+
+ level &= 0xff;
+
+ if (level > av_log_level)
return;
-#undef fprintf
- if(print_prefix && avc) {
- fprintf(stderr, "[%s @ %p]", avc->item_name(ptr), ptr);
+ line[0] = 0;
+ if (print_prefix && avc) {
+ if (avc->parent_log_context_offset) {
+ AVClass** parent = *(AVClass ***) (((uint8_t *) avcl) +
+ 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(avcl), avcl);
}
- 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, NB_LEVELS - 1), tint >> 8, line);
+ av_strlcpy(prev, line, sizeof line);
+
+#if CONFIG_VALGRIND_BACKTRACE
+ if (level <= BACKTRACE_LOGLEVEL)
+ VALGRIND_PRINTF_BACKTRACE("");
+#endif
}
-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);
}
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;
}
+
+static void missing_feature_sample(int sample, void *avc, const char *msg,
+ va_list argument_list)
+{
+ av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
+ av_log(avc, AV_LOG_WARNING, " is not implemented. Update your Libav "
+ "version to the newest one from Git. If the problem still "
+ "occurs, it means that your file has a feature which has not "
+ "been implemented.\n");
+ if (sample)
+ av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
+ "of this file to ftp://upload.libav.org/incoming/ "
+ "and contact the libav-devel mailing list.\n");
+}
+
+void avpriv_request_sample(void *avc, const char *msg, ...)
+{
+ va_list argument_list;
+
+ va_start(argument_list, msg);
+ missing_feature_sample(1, avc, msg, argument_list);
+ va_end(argument_list);
+}
+
+void avpriv_report_missing_feature(void *avc, const char *msg, ...)
+{
+ va_list argument_list;
+
+ va_start(argument_list, msg);
+ missing_feature_sample(0, avc, msg, argument_list);
+ va_end(argument_list);
+}
projects / ffmpeg / blobdiff