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ffmpeg/libavutil/log.c
Nicolas George 39bb26f91b lavu/log: do not skip overwritten lines. 
If the line ends with \r, it will not flood the tty, and
the "Last message repeated" line would overwrite it.
Fix bug introduced by c25d1ba.
2013-08-07 16:01:45 +02:00

319 lines
9.9 KiB
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/*
* log functions
* Copyright (c) 2003 Michel Bardiaux
*
* This file is part of FFmpeg.
*
* 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.
*
* 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @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 "avutil.h"
#include "common.h"
#include "internal.h"
#include "log.h"
#define LINE_SZ 1024
static int av_log_level = AV_LOG_INFO;
static int flags;
#if HAVE_SETCONSOLETEXTATTRIBUTE
#include <windows.h>
static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
[AV_LOG_PANIC /8] = 12,
[AV_LOG_FATAL /8] = 12,
[AV_LOG_ERROR /8] = 12,
[AV_LOG_WARNING/8] = 14,
[AV_LOG_INFO /8] = 7,
[AV_LOG_VERBOSE/8] = 10,
[AV_LOG_DEBUG /8] = 10,
[16+AV_CLASS_CATEGORY_NA ] = 7,
[16+AV_CLASS_CATEGORY_INPUT ] = 13,
[16+AV_CLASS_CATEGORY_OUTPUT ] = 5,
[16+AV_CLASS_CATEGORY_MUXER ] = 13,
[16+AV_CLASS_CATEGORY_DEMUXER ] = 5,
[16+AV_CLASS_CATEGORY_ENCODER ] = 11,
[16+AV_CLASS_CATEGORY_DECODER ] = 3,
[16+AV_CLASS_CATEGORY_FILTER ] = 10,
[16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 9,
[16+AV_CLASS_CATEGORY_SWSCALER ] = 7,
[16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 7,
};
static int16_t background, attr_orig;
static HANDLE con;
#define set_color(x) SetConsoleTextAttribute(con, background | color[x])
#define set_256color set_color
#define reset_color() SetConsoleTextAttribute(con, attr_orig)
#else
static const uint32_t color[16 + AV_CLASS_CATEGORY_NB] = {
[AV_LOG_PANIC /8] = 52 << 16 | 196 << 8 | 0x41,
[AV_LOG_FATAL /8] = 208 << 8 | 0x41,
[AV_LOG_ERROR /8] = 196 << 8 | 0x11,
[AV_LOG_WARNING/8] = 226 << 8 | 0x03,
[AV_LOG_INFO /8] = 253 << 8 | 0x09,
[AV_LOG_VERBOSE/8] = 40 << 8 | 0x02,
[AV_LOG_DEBUG /8] = 34 << 8 | 0x02,
[16+AV_CLASS_CATEGORY_NA ] = 250 << 8 | 0x09,
[16+AV_CLASS_CATEGORY_INPUT ] = 219 << 8 | 0x15,
[16+AV_CLASS_CATEGORY_OUTPUT ] = 201 << 8 | 0x05,
[16+AV_CLASS_CATEGORY_MUXER ] = 213 << 8 | 0x15,
[16+AV_CLASS_CATEGORY_DEMUXER ] = 207 << 8 | 0x05,
[16+AV_CLASS_CATEGORY_ENCODER ] = 51 << 8 | 0x16,
[16+AV_CLASS_CATEGORY_DECODER ] = 39 << 8 | 0x06,
[16+AV_CLASS_CATEGORY_FILTER ] = 155 << 8 | 0x12,
[16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 192 << 8 | 0x14,
[16+AV_CLASS_CATEGORY_SWSCALER ] = 153 << 8 | 0x14,
[16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 147 << 8 | 0x14,
};
#define set_color(x) fprintf(stderr, "\033[%d;3%dm", (color[x] >> 4) & 15, color[x] & 15)
#define set_256color(x) fprintf(stderr, "\033[48;5;%dm\033[38;5;%dm", (color[x] >> 16) & 0xff, (color[x] >> 8) & 0xff)
#define reset_color() fprintf(stderr, "\033[0m")
#endif
static int use_color = -1;
static void colored_fputs(int level, const char *str)
{
if (use_color < 0) {
#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
use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
(getenv("TERM") && isatty(2) ||
getenv("AV_LOG_FORCE_COLOR"));
if (getenv("AV_LOG_FORCE_256COLOR"))
use_color *= 256;
#else
use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
!getenv("AV_LOG_FORCE_NOCOLOR");
#endif
}
if (use_color == 1) {
set_color(level);
} else if (use_color == 256)
set_256color(level);
fputs(str, stderr);
if (use_color) {
reset_color();
}
}
const char *av_default_item_name(void *ptr)
{
return (*(AVClass **) ptr)->class_name;
}
AVClassCategory av_default_get_category(void *ptr)
{
return (*(AVClass **) ptr)->category;
}
static void sanitize(uint8_t *line){
while(*line){
if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
*line='?';
line++;
}
}
static int get_category(void *ptr){
AVClass *avc = *(AVClass **) ptr;
if( !avc
|| (avc->version&0xFF)<100
|| avc->version < (51 << 16 | 59 << 8)
|| avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
if(avc->get_category)
return avc->get_category(ptr) + 16;
return avc->category + 16;
}
static void format_line(void *ptr, int level, const char *fmt, va_list vl,
char part[3][LINE_SZ], int part_size, int *print_prefix, int type[2])
{
AVClass* avc = ptr ? *(AVClass **) ptr : NULL;
part[0][0] = part[1][0] = part[2][0] = 0;
if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
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(part[0], part_size, "[%s @ %p] ",
(*parent)->item_name(parent), parent);
if(type) type[0] = get_category(parent);
}
}
snprintf(part[1], part_size, "[%s @ %p] ",
avc->item_name(ptr), ptr);
if(type) type[1] = get_category(ptr);
}
vsnprintf(part[2], part_size, fmt, vl);
if(*part[0] || *part[1] || *part[2]) {
char lastc = strlen(part[2]) ? part[2][strlen(part[2]) - 1] : 0;
*print_prefix = lastc == '\n' || lastc == '\r';
}
}
void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
char *line, int line_size, int *print_prefix)
{
char part[3][LINE_SZ];
format_line(ptr, level, fmt, vl, part, sizeof(part[0]), print_prefix, NULL);
snprintf(line, line_size, "%s%s%s", part[0], part[1], part[2]);
}
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 prev[LINE_SZ];
char part[3][LINE_SZ];
char line[LINE_SZ];
static int is_atty;
int type[2];
if (level > av_log_level)
return;
format_line(ptr, level, fmt, vl, part, sizeof(part[0]), &print_prefix, type);
snprintf(line, sizeof(line), "%s%s%s", part[0], part[1], part[2]);
#if HAVE_ISATTY
if (!is_atty)
is_atty = isatty(2) ? 1 : -1;
#endif
if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev) &&
*line && line[strlen(line) - 1] != '\r'){
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;
}
strcpy(prev, line);
sanitize(part[0]);
colored_fputs(type[0], part[0]);
sanitize(part[1]);
colored_fputs(type[1], part[1]);
sanitize(part[2]);
colored_fputs(av_clip(level >> 3, 0, 6), part[2]);
}
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);
}
void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
{
if(av_log_callback)
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_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 FFmpeg "
"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.ffmpeg.org/MPlayer/incoming/ "
"and contact the ffmpeg-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);
}
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