mirror of https://github.com/FFmpeg/FFmpeg.git
Originally committed as revision 5781 to svn://svn.ffmpeg.org/ffmpeg/trunkpull/126/head
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6 changed files with 113 additions and 85 deletions
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/*
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* log functions |
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* Copyright (c) 2003 Michel Bardiaux |
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* |
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* This library 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 of the License, or (at your option) any later version. |
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* |
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* This library 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 this library; 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 log.c |
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* log. |
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*/ |
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#include "avutil.h" |
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static int av_log_level = AV_LOG_INFO; |
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static 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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AVClass* avc= ptr ? *(AVClass**)ptr : NULL; |
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if(level>av_log_level) |
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return; |
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#undef fprintf |
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if(print_prefix && avc) { |
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fprintf(stderr, "[%s @ %p]", avc->item_name(ptr), avc); |
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} |
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#define fprintf please_use_av_log |
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print_prefix= strstr(fmt, "\n") != NULL; |
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vfprintf(stderr, fmt, vl); |
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} |
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static void (*av_log_callback)(void*, int, const char*, va_list) = 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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va_list vl; |
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va_start(vl, fmt); |
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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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av_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_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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#ifndef LOG_H |
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#define LOG_H |
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#include <stdarg.h> |
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/**
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* Used by av_log |
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*/ |
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typedef struct AVCLASS AVClass; |
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struct AVCLASS { |
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const char* class_name; |
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const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
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or AVFormatContext, which begin with an AVClass. |
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Needed because av_log is in libavcodec and has no visibility |
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of AVIn/OutputFormat */ |
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struct AVOption *option; |
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}; |
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/* av_log API */ |
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#define AV_LOG_QUIET -1 |
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#define AV_LOG_ERROR 0 |
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#define AV_LOG_INFO 1 |
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#define AV_LOG_DEBUG 2 |
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#ifdef __GNUC__ |
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extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4))); |
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#else |
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extern void av_log(void*, int level, const char *fmt, ...); |
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#endif |
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extern void av_vlog(void*, int level, const char *fmt, va_list); |
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extern int av_log_get_level(void); |
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extern void av_log_set_level(int); |
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extern void av_log_set_callback(void (*)(void*, int, const char*, va_list)); |
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#endif /* LOG_H */ |
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