*/
/**
- * @file libavutil/log.c
+ * @file
* logging functions
*/
+#include <unistd.h>
+#include <stdlib.h>
#include "avutil.h"
#include "log.h"
+#if LIBAVUTIL_VERSION_MAJOR > 50
+static
+#endif
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("FFMPEG_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("FFMPEG_FORCE_NOCOLOR") &&
+ (getenv("TERM") && isatty(2) || getenv("FFMPEG_FORCE_COLOR"));
+#else
+ use_color= getenv("FFMPEG_FORCE_COLOR") && !getenv("NO_COLOR") && !getenv("FFMPEG_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;
+ static int count;
+ static char line[1024], prev[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(avc->version >= (50<<16 | 15<<8 | 3) && 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= line[strlen(line)-1] == '\n';
+
+#if HAVE_ISATTY
+ if(!is_atty) is_atty= isatty(2) ? 1 : -1;
+#endif
- vfprintf(stderr, fmt, vl);
+ if(print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev)){
+ 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);
+ strcpy(prev, line);
}
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;