339 lines
10 KiB
C
339 lines
10 KiB
C
/*
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* log functions
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* Copyright (c) 2003 Michel Bardiaux
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* logging functions
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*/
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#include "config.h"
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if HAVE_IO_H
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#include <io.h>
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#endif
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#include <stdarg.h>
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#include <stdlib.h>
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#include "avutil.h"
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#include "bprint.h"
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#include "common.h"
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#include "internal.h"
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#include "log.h"
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#if HAVE_PTHREADS
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#include <pthread.h>
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static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
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#endif
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#define LINE_SZ 1024
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static int av_log_level = AV_LOG_INFO;
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static int flags;
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#if HAVE_SETCONSOLETEXTATTRIBUTE
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#include <windows.h>
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static const uint8_t color[16 + AV_CLASS_CATEGORY_NB] = {
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[AV_LOG_PANIC /8] = 12,
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[AV_LOG_FATAL /8] = 12,
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[AV_LOG_ERROR /8] = 12,
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[AV_LOG_WARNING/8] = 14,
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[AV_LOG_INFO /8] = 7,
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[AV_LOG_VERBOSE/8] = 10,
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[AV_LOG_DEBUG /8] = 10,
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[16+AV_CLASS_CATEGORY_NA ] = 7,
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[16+AV_CLASS_CATEGORY_INPUT ] = 13,
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[16+AV_CLASS_CATEGORY_OUTPUT ] = 5,
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[16+AV_CLASS_CATEGORY_MUXER ] = 13,
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[16+AV_CLASS_CATEGORY_DEMUXER ] = 5,
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[16+AV_CLASS_CATEGORY_ENCODER ] = 11,
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[16+AV_CLASS_CATEGORY_DECODER ] = 3,
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[16+AV_CLASS_CATEGORY_FILTER ] = 10,
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[16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 9,
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[16+AV_CLASS_CATEGORY_SWSCALER ] = 7,
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[16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 7,
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};
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static int16_t background, attr_orig;
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static HANDLE con;
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#define set_color(x) SetConsoleTextAttribute(con, background | color[x])
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#define set_256color set_color
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#define reset_color() SetConsoleTextAttribute(con, attr_orig)
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#else
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static const uint32_t color[16 + AV_CLASS_CATEGORY_NB] = {
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[AV_LOG_PANIC /8] = 52 << 16 | 196 << 8 | 0x41,
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[AV_LOG_FATAL /8] = 208 << 8 | 0x41,
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[AV_LOG_ERROR /8] = 196 << 8 | 0x11,
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[AV_LOG_WARNING/8] = 226 << 8 | 0x03,
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[AV_LOG_INFO /8] = 253 << 8 | 0x09,
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[AV_LOG_VERBOSE/8] = 40 << 8 | 0x02,
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[AV_LOG_DEBUG /8] = 34 << 8 | 0x02,
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[16+AV_CLASS_CATEGORY_NA ] = 250 << 8 | 0x09,
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[16+AV_CLASS_CATEGORY_INPUT ] = 219 << 8 | 0x15,
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[16+AV_CLASS_CATEGORY_OUTPUT ] = 201 << 8 | 0x05,
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[16+AV_CLASS_CATEGORY_MUXER ] = 213 << 8 | 0x15,
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[16+AV_CLASS_CATEGORY_DEMUXER ] = 207 << 8 | 0x05,
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[16+AV_CLASS_CATEGORY_ENCODER ] = 51 << 8 | 0x16,
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[16+AV_CLASS_CATEGORY_DECODER ] = 39 << 8 | 0x06,
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[16+AV_CLASS_CATEGORY_FILTER ] = 155 << 8 | 0x12,
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[16+AV_CLASS_CATEGORY_BITSTREAM_FILTER] = 192 << 8 | 0x14,
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[16+AV_CLASS_CATEGORY_SWSCALER ] = 153 << 8 | 0x14,
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[16+AV_CLASS_CATEGORY_SWRESAMPLER ] = 147 << 8 | 0x14,
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};
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#define set_color(x) fprintf(stderr, "\033[%d;3%dm", (color[x] >> 4) & 15, color[x] & 15)
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#define set_256color(x) fprintf(stderr, "\033[48;5;%dm\033[38;5;%dm", (color[x] >> 16) & 0xff, (color[x] >> 8) & 0xff)
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#define reset_color() fprintf(stderr, "\033[0m")
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#endif
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static int use_color = -1;
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static void colored_fputs(int level, const char *str)
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{
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if (use_color < 0) {
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#if HAVE_SETCONSOLETEXTATTRIBUTE
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CONSOLE_SCREEN_BUFFER_INFO con_info;
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con = GetStdHandle(STD_ERROR_HANDLE);
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use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") &&
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!getenv("AV_LOG_FORCE_NOCOLOR");
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if (use_color) {
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GetConsoleScreenBufferInfo(con, &con_info);
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attr_orig = con_info.wAttributes;
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background = attr_orig & 0xF0;
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}
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#elif HAVE_ISATTY
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use_color = !getenv("NO_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR") &&
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(getenv("TERM") && isatty(2) ||
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getenv("AV_LOG_FORCE_COLOR"));
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if (getenv("AV_LOG_FORCE_256COLOR"))
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use_color *= 256;
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#else
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use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("NO_COLOR") &&
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!getenv("AV_LOG_FORCE_NOCOLOR");
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#endif
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}
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if (use_color == 1) {
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set_color(level);
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} else if (use_color == 256)
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set_256color(level);
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fputs(str, stderr);
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if (use_color) {
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reset_color();
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}
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}
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const char *av_default_item_name(void *ptr)
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{
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return (*(AVClass **) ptr)->class_name;
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}
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AVClassCategory av_default_get_category(void *ptr)
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{
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return (*(AVClass **) ptr)->category;
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}
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static void sanitize(uint8_t *line){
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while(*line){
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if(*line < 0x08 || (*line > 0x0D && *line < 0x20))
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*line='?';
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line++;
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}
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}
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static int get_category(void *ptr){
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AVClass *avc = *(AVClass **) ptr;
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if( !avc
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|| (avc->version&0xFF)<100
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|| avc->version < (51 << 16 | 59 << 8)
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|| avc->category >= AV_CLASS_CATEGORY_NB) return AV_CLASS_CATEGORY_NA + 16;
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if(avc->get_category)
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return avc->get_category(ptr) + 16;
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return avc->category + 16;
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}
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static void format_line(void *ptr, int level, const char *fmt, va_list vl,
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AVBPrint part[3], int *print_prefix, int type[2])
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{
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AVClass* avc = ptr ? *(AVClass **) ptr : NULL;
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av_bprint_init(part+0, 0, 1);
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av_bprint_init(part+1, 0, 1);
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av_bprint_init(part+2, 0, 65536);
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if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
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if (*print_prefix && avc) {
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if (avc->parent_log_context_offset) {
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AVClass** parent = *(AVClass ***) (((uint8_t *) ptr) +
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avc->parent_log_context_offset);
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if (parent && *parent) {
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av_bprintf(part+0, "[%s @ %p] ",
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(*parent)->item_name(parent), parent);
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if(type) type[0] = get_category(parent);
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}
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}
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av_bprintf(part+1, "[%s @ %p] ",
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avc->item_name(ptr), ptr);
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if(type) type[1] = get_category(ptr);
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}
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av_vbprintf(part+2, fmt, vl);
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if(*part[0].str || *part[1].str || *part[2].str) {
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char lastc = part[2].len ? part[2].str[part[2].len - 1] : 0;
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*print_prefix = lastc == '\n' || lastc == '\r';
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}
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}
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void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
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char *line, int line_size, int *print_prefix)
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{
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AVBPrint part[3];
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format_line(ptr, level, fmt, vl, part, print_prefix, NULL);
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snprintf(line, line_size, "%s%s%s", part[0].str, part[1].str, part[2].str);
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av_bprint_finalize(part+2, NULL);
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}
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void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
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{
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static int print_prefix = 1;
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static int count;
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static char prev[LINE_SZ];
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AVBPrint part[3];
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char line[LINE_SZ];
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static int is_atty;
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int type[2];
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if (level > av_log_level)
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return;
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#if HAVE_PTHREADS
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pthread_mutex_lock(&mutex);
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#endif
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format_line(ptr, level, fmt, vl, part, &print_prefix, type);
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snprintf(line, sizeof(line), "%s%s%s", part[0].str, part[1].str, part[2].str);
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#if HAVE_ISATTY
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if (!is_atty)
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is_atty = isatty(2) ? 1 : -1;
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#endif
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if (print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev) &&
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*line && line[strlen(line) - 1] != '\r'){
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count++;
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if (is_atty == 1)
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fprintf(stderr, " Last message repeated %d times\r", count);
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goto end;
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}
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if (count > 0) {
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fprintf(stderr, " Last message repeated %d times\n", count);
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count = 0;
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}
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strcpy(prev, line);
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sanitize(part[0].str);
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colored_fputs(type[0], part[0].str);
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sanitize(part[1].str);
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colored_fputs(type[1], part[1].str);
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sanitize(part[2].str);
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colored_fputs(av_clip(level >> 3, 0, 6), part[2].str);
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end:
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av_bprint_finalize(part+2, NULL);
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#if HAVE_PTHREADS
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pthread_mutex_unlock(&mutex);
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#endif
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}
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static void (*av_log_callback)(void*, int, const char*, va_list) =
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av_log_default_callback;
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void av_log(void* avcl, int level, const char *fmt, ...)
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{
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AVClass* avc = avcl ? *(AVClass **) avcl : NULL;
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va_list vl;
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va_start(vl, fmt);
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if (avc && avc->version >= (50 << 16 | 15 << 8 | 2) &&
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avc->log_level_offset_offset && level >= AV_LOG_FATAL)
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level += *(int *) (((uint8_t *) avcl) + avc->log_level_offset_offset);
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av_vlog(avcl, level, fmt, vl);
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va_end(vl);
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}
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void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
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{
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void (*log_callback)(void*, int, const char*, va_list) = av_log_callback;
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if (log_callback)
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log_callback(avcl, level, fmt, vl);
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}
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int av_log_get_level(void)
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{
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return av_log_level;
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}
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void av_log_set_level(int level)
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{
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av_log_level = level;
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}
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void av_log_set_flags(int arg)
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{
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flags = arg;
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}
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void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
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{
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av_log_callback = callback;
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}
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static void missing_feature_sample(int sample, void *avc, const char *msg,
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va_list argument_list)
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{
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av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
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av_log(avc, AV_LOG_WARNING, " is not implemented. Update your FFmpeg "
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"version to the newest one from Git. If the problem still "
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"occurs, it means that your file has a feature which has not "
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"been implemented.\n");
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if (sample)
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av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
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"of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
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"and contact the ffmpeg-devel mailing list.\n");
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}
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void avpriv_request_sample(void *avc, const char *msg, ...)
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{
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va_list argument_list;
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va_start(argument_list, msg);
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missing_feature_sample(1, avc, msg, argument_list);
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va_end(argument_list);
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}
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void avpriv_report_missing_feature(void *avc, const char *msg, ...)
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{
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va_list argument_list;
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va_start(argument_list, msg);
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missing_feature_sample(0, avc, msg, argument_list);
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va_end(argument_list);
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}
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