+++ /dev/null
-/*
- * 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"
-#include "attributes.h"
-#include "version.h"
-
-typedef enum {
- AV_CLASS_CATEGORY_NA = 0,
- AV_CLASS_CATEGORY_INPUT,
- AV_CLASS_CATEGORY_OUTPUT,
- AV_CLASS_CATEGORY_MUXER,
- AV_CLASS_CATEGORY_DEMUXER,
- AV_CLASS_CATEGORY_ENCODER,
- AV_CLASS_CATEGORY_DECODER,
- AV_CLASS_CATEGORY_FILTER,
- AV_CLASS_CATEGORY_BITSTREAM_FILTER,
- AV_CLASS_CATEGORY_SWSCALER,
- AV_CLASS_CATEGORY_SWRESAMPLER,
- AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT = 40,
- AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
- AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT,
- AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
- AV_CLASS_CATEGORY_DEVICE_OUTPUT,
- AV_CLASS_CATEGORY_DEVICE_INPUT,
- AV_CLASS_CATEGORY_NB, ///< not part of ABI/API
-}AVClassCategory;
-
-#define AV_IS_INPUT_DEVICE(category) \
- (((category) == AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT) || \
- ((category) == AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT) || \
- ((category) == AV_CLASS_CATEGORY_DEVICE_INPUT))
-
-#define AV_IS_OUTPUT_DEVICE(category) \
- (((category) == AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT) || \
- ((category) == AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT) || \
- ((category) == AV_CLASS_CATEGORY_DEVICE_OUTPUT))
-
-struct AVOptionRanges;
-
-/**
- * Describe 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 {
- /**
- * 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 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;
-
- /**
- * LIBAVUTIL_VERSION with which this structure was created.
- * This is used to allow fields to be added without requiring major
- * version bumps everywhere.
- */
-
- int version;
-
- /**
- * Offset in the structure where log_level_offset is stored.
- * 0 means there is no such variable
- */
- int log_level_offset_offset;
-
- /**
- * Offset in the structure where a pointer to the parent context for
- * logging is stored. For example a decoder could pass its AVCodecContext
- * to eval as such a parent context, which an av_log() implementation
- * could then leverage to display the parent context.
- * The offset can be NULL.
- */
- int parent_log_context_offset;
-
- /**
- * Return next AVOptions-enabled child or NULL
- */
- void* (*child_next)(void *obj, void *prev);
-
- /**
- * Return an AVClass corresponding to the next potential
- * AVOptions-enabled child.
- *
- * The difference between child_next and this is that
- * child_next iterates over _already existing_ objects, while
- * child_class_next iterates over _all possible_ children.
- */
- const struct AVClass* (*child_class_next)(const struct AVClass *prev);
-
- /**
- * Category used for visualization (like color)
- * This is only set if the category is equal for all objects using this class.
- * available since version (51 << 16 | 56 << 8 | 100)
- */
- AVClassCategory category;
-
- /**
- * Callback to return the category.
- * available since version (51 << 16 | 59 << 8 | 100)
- */
- AVClassCategory (*get_category)(void* ctx);
-
- /**
- * Callback to return the supported/allowed ranges.
- * available since version (52.12)
- */
- int (*query_ranges)(struct AVOptionRanges **, void *obj, const char *key, int flags);
-} AVClass;
-
-/**
- * @addtogroup lavu_log
- *
- * @{
- *
- * @defgroup lavu_log_constants Logging Constants
- *
- * @{
- */
-
-/**
- * Print no output.
- */
-#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.
- * For example, no header was found for a format which depends
- * on headers or an illegal combination of parameters is used.
- */
-#define AV_LOG_FATAL 8
-
-/**
- * Something went wrong and cannot losslessly be recovered.
- * However, not all future data is affected.
- */
-#define AV_LOG_ERROR 16
-
-/**
- * Something somehow does not look correct. This may or may not
- * lead to problems. An example would be the use of '-vstrict -2'.
- */
-#define AV_LOG_WARNING 24
-
-/**
- * Standard information.
- */
-#define AV_LOG_INFO 32
-
-/**
- * Detailed information.
- */
-#define AV_LOG_VERBOSE 40
-
-/**
- * Stuff which is only useful for libav* developers.
- */
-#define AV_LOG_DEBUG 48
-
-/**
- * Extremely verbose debugging, useful for libav* development.
- */
-#define AV_LOG_TRACE 56
-
-#define AV_LOG_MAX_OFFSET (AV_LOG_TRACE - AV_LOG_QUIET)
-
-/**
- * @}
- */
-
-/**
- * Sets additional colors for extended debugging sessions.
- * @code
- av_log(ctx, AV_LOG_DEBUG|AV_LOG_C(134), "Message in purple\n");
- @endcode
- * Requires 256color terminal support. Uses outside debugging is not
- * recommended.
- */
-#define AV_LOG_C(x) ((x) << 8)
-
-/**
- * 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 logging callback
- * function.
- * @see av_log_set_callback
- *
- * @param avcl A pointer to an arbitrary struct of which the first field is a
- * pointer to an AVClass struct or NULL if general log.
- * @param level The importance level of the message expressed using a @ref
- * lavu_log_constants "Logging Constant".
- * @param fmt The format string (printf-compatible) that specifies how
- * subsequent arguments are converted to output.
- */
-void av_log(void *avcl, int level, const char *fmt, ...) av_printf_format(3, 4);
-
-
-/**
- * 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 logging callback
- * function.
- * @see av_log_set_callback
- *
- * @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 expressed using a @ref
- * lavu_log_constants "Logging Constant".
- * @param fmt The format string (printf-compatible) that specifies how
- * subsequent arguments are converted to output.
- * @param vl The arguments referenced by the format string.
- */
-void av_vlog(void *avcl, int level, const char *fmt, va_list vl);
-
-/**
- * Get the current log level
- *
- * @see lavu_log_constants
- *
- * @return Current log level
- */
-int av_log_get_level(void);
-
-/**
- * Set the log level
- *
- * @see lavu_log_constants
- *
- * @param level Logging level
- */
-void av_log_set_level(int level);
-
-/**
- * Set the logging callback
- *
- * @note The callback must be thread safe, even if the application does not use
- * threads itself as some codecs are multithreaded.
- *
- * @see av_log_default_callback
- *
- * @param callback A logging function with a compatible signature.
- */
-void av_log_set_callback(void (*callback)(void*, int, const char*, va_list));
-
-/**
- * Default logging callback
- *
- * It prints the message to stderr, optionally colorizing it.
- *
- * @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 expressed using a @ref
- * lavu_log_constants "Logging Constant".
- * @param fmt The format string (printf-compatible) that specifies how
- * subsequent arguments are converted to output.
- * @param vl The arguments referenced by the format string.
- */
-void av_log_default_callback(void *avcl, int level, const char *fmt,
- va_list vl);
-
-/**
- * Return the context name
- *
- * @param ctx The AVClass context
- *
- * @return The AVClass class_name
- */
-const char* av_default_item_name(void* ctx);
-AVClassCategory av_default_get_category(void *ptr);
-
-/**
- * Format a line of log the same way as the default callback.
- * @param line buffer to receive the formatted line
- * @param line_size size of the buffer
- * @param print_prefix used to store whether the prefix must be printed;
- * must point to a persistent integer initially set to 1
- */
-void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
- char *line, int line_size, int *print_prefix);
-
-#if FF_API_DLOG
-/**
- * av_dlog macros
- * @deprecated unused
- * Useful to print debug messages that shouldn't get compiled in normally.
- */
-
-#ifdef DEBUG
-# define av_dlog(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__)
-#else
-# define av_dlog(pctx, ...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0)
-#endif
-#endif /* FF_API_DLOG */
-
-/**
- * Skip repeated messages, this requires the user app to use av_log() instead of
- * (f)printf as the 2 would otherwise interfere and lead to
- * "Last message repeated x times" messages below (f)printf messages with some
- * bad luck.
- * Also to receive the last, "last repeated" line if any, the user app must
- * call av_log(NULL, AV_LOG_QUIET, "%s", ""); at the end
- */
-#define AV_LOG_SKIP_REPEATED 1
-
-/**
- * Include the log severity in messages originating from codecs.
- *
- * Results in messages such as:
- * [rawvideo @ 0xDEADBEEF] [error] encode did not produce valid pts
- */
-#define AV_LOG_PRINT_LEVEL 2
-
-void av_log_set_flags(int arg);
-int av_log_get_flags(void);
-
-/**
- * @}
- */
-
-#endif /* AVUTIL_LOG_H */
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