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Diffstat (limited to 'third_party/ffmpeg/include/libavutil/log.h')
-rw-r--r-- | third_party/ffmpeg/include/libavutil/log.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/third_party/ffmpeg/include/libavutil/log.h b/third_party/ffmpeg/include/libavutil/log.h new file mode 100644 index 0000000..8c93f9c --- /dev/null +++ b/third_party/ffmpeg/include/libavutil/log.h @@ -0,0 +1,130 @@ +/* + * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> + * + * 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 + */ + +#ifndef AVUTIL_LOG_H +#define AVUTIL_LOG_H + +#include <stdarg.h> +#include "avutil.h" + +/** + * Describes the class of an AVClass context structure, that is an + * arbitrary struct of which the first field is a pointer to an + * AVClass struct (e.g. AVCodecContext, AVFormatContext etc.). + */ +typedef struct AVCLASS AVClass; +struct AVCLASS { + /** + * The name of the class; usually it is the same name as the + * context structure type to which the AVClass is associated. + */ + const char* class_name; + + /** + * a pointer to a function which returns the name of a context + * instance \p ctx associated with the class + */ + const char* (*item_name)(void* ctx); + + /** + * a pointer to the first option specified in the class if any or NULL + * + * @see av_set_default_options() + */ + const struct AVOption *option; +}; + +/* av_log API */ + +#if LIBAVUTIL_VERSION_INT < (50<<16) +#define AV_LOG_QUIET -1 +#define AV_LOG_FATAL 0 +#define AV_LOG_ERROR 0 +#define AV_LOG_WARNING 1 +#define AV_LOG_INFO 1 +#define AV_LOG_VERBOSE 1 +#define AV_LOG_DEBUG 2 +#else +#define AV_LOG_QUIET -8 + +/** + * something went really wrong and we will crash now + */ +#define AV_LOG_PANIC 0 + +/** + * something went wrong and recovery is not possible + * like no header in a format which depends on it or a combination + * of parameters which are not allowed + */ +#define AV_LOG_FATAL 8 + +/** + * something went wrong and cannot losslessly be recovered + * but not all future data is affected + */ +#define AV_LOG_ERROR 16 + +/** + * something somehow does not look correct / something which may or may not + * lead to some problems like use of -vstrict -2 + */ +#define AV_LOG_WARNING 24 + +#define AV_LOG_INFO 32 +#define AV_LOG_VERBOSE 40 + +/** + * stuff which is only useful for libav* developers + */ +#define AV_LOG_DEBUG 48 +#endif + +#if LIBAVUTIL_VERSION_INT < (50<<16) +extern int av_log_level; +#endif + +/** + * Send the specified message to the log if the level is less than or equal to + * the current av_log_level. By default, all logging messages are sent to + * stderr. This behavior can be altered by setting a different av_vlog callback + * function. + * + * @param avcl A pointer to an arbitrary struct of which the first field is a + * pointer to an AVClass struct. + * @param level The importance level of the message, lower values signifying + * higher importance. + * @param fmt The format string (printf-compatible) that specifies how + * subsequent arguments are converted to output. + * @see av_vlog + */ +#ifdef __GNUC__ +void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4))); +#else +void av_log(void*, int level, const char *fmt, ...); +#endif + +void av_vlog(void*, int level, const char *fmt, va_list); +int av_log_get_level(void); +void av_log_set_level(int); +void av_log_set_callback(void (*)(void*, int, const char*, va_list)); +void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl); + +#endif /* AVUTIL_LOG_H */ |