ffmpeg / libavutil / log.h @ 80a07f6e
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1 | 04d7f601 | Diego Biurrun | /*
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2 | * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
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3 | *
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4 | b78e7197 | Diego Biurrun | * This file is part of FFmpeg.
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5 | *
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6 | * FFmpeg is free software; you can redistribute it and/or
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7 | 04d7f601 | Diego Biurrun | * modify it under the terms of the GNU Lesser General Public
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8 | * License as published by the Free Software Foundation; either
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9 | b78e7197 | Diego Biurrun | * version 2.1 of the License, or (at your option) any later version.
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10 | 04d7f601 | Diego Biurrun | *
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11 | b78e7197 | Diego Biurrun | * FFmpeg is distributed in the hope that it will be useful,
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12 | 04d7f601 | Diego Biurrun | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | * Lesser General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU Lesser General Public
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17 | b78e7197 | Diego Biurrun | * License along with FFmpeg; if not, write to the Free Software
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18 | 04d7f601 | Diego Biurrun | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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19 | */
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20 | |||
21 | 98790382 | Stefano Sabatini | #ifndef AVUTIL_LOG_H
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22 | #define AVUTIL_LOG_H
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23 | 4b45de0e | Luca Abeni | |
24 | #include <stdarg.h> |
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25 | af5f434f | Aurelien Jacobs | #include "avutil.h" |
26 | 4b45de0e | Luca Abeni | |
27 | /**
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28 | bfe3676f | Diego Biurrun | * Describes the class of an AVClass context structure. That is an
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29 | 95a6a015 | Stefano Sabatini | * arbitrary struct of which the first field is a pointer to an
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30 | * AVClass struct (e.g. AVCodecContext, AVFormatContext etc.).
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31 | 4b45de0e | Luca Abeni | */
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32 | 68485d27 | Stefano Sabatini | typedef struct { |
33 | 95a6a015 | Stefano Sabatini | /**
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34 | 91605c69 | Diego Biurrun | * The name of the class; usually it is the same name as the
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35 | e4a957d1 | Diego Biurrun | * context structure type to which the AVClass is associated.
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36 | 95a6a015 | Stefano Sabatini | */
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37 | 4b45de0e | Luca Abeni | const char* class_name; |
38 | 95a6a015 | Stefano Sabatini | |
39 | /**
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40 | bfe3676f | Diego Biurrun | * A pointer to a function which returns the name of a context
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41 | bf7e799c | Stefano Sabatini | * instance ctx associated with the class.
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42 | 95a6a015 | Stefano Sabatini | */
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43 | const char* (*item_name)(void* ctx); |
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44 | |||
45 | /**
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46 | * a pointer to the first option specified in the class if any or NULL
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47 | *
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48 | * @see av_set_default_options()
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49 | */
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50 | 3666f75d | Baptiste Coudurier | const struct AVOption *option; |
51 | 68485d27 | Stefano Sabatini | } AVClass; |
52 | 4b45de0e | Luca Abeni | |
53 | /* av_log API */
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54 | |||
55 | 434f2c18 | Luca Abeni | #define AV_LOG_QUIET -8 |
56 | |||
57 | /**
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58 | bfe3676f | Diego Biurrun | * Something went really wrong and we will crash now.
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59 | 434f2c18 | Luca Abeni | */
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60 | #define AV_LOG_PANIC 0 |
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61 | |||
62 | /**
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63 | 7d685b48 | Diego Biurrun | * Something went wrong and recovery is not possible.
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64 | * For example, no header was found for a format which depends
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65 | * on headers or an illegal combination of parameters is used.
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66 | 434f2c18 | Luca Abeni | */
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67 | #define AV_LOG_FATAL 8 |
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68 | |||
69 | /**
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70 | 7d685b48 | Diego Biurrun | * Something went wrong and cannot losslessly be recovered.
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71 | * However, not all future data is affected.
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72 | 434f2c18 | Luca Abeni | */
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73 | #define AV_LOG_ERROR 16 |
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74 | |||
75 | /**
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76 | 7d685b48 | Diego Biurrun | * Something somehow does not look correct. This may or may not
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77 | * lead to problems. An example would be the use of '-vstrict -2'.
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78 | 434f2c18 | Luca Abeni | */
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79 | #define AV_LOG_WARNING 24 |
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80 | |||
81 | #define AV_LOG_INFO 32 |
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82 | #define AV_LOG_VERBOSE 40 |
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83 | |||
84 | /**
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85 | bfe3676f | Diego Biurrun | * Stuff which is only useful for libav* developers.
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86 | 434f2c18 | Luca Abeni | */
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87 | #define AV_LOG_DEBUG 48 |
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88 | 4b45de0e | Luca Abeni | |
89 | 3ec9a787 | Panagiotis Issaris | /**
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90 | bfe3676f | Diego Biurrun | * Sends the specified message to the log if the level is less than or equal
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91 | * to the current av_log_level. By default, all logging messages are sent to
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92 | 3ec9a787 | Panagiotis Issaris | * stderr. This behavior can be altered by setting a different av_vlog callback
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93 | * function.
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94 | *
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95 | * @param avcl A pointer to an arbitrary struct of which the first field is a
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96 | * pointer to an AVClass struct.
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97 | * @param level The importance level of the message, lower values signifying
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98 | * higher importance.
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99 | * @param fmt The format string (printf-compatible) that specifies how
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100 | * subsequent arguments are converted to output.
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101 | * @see av_vlog
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102 | */
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103 | 4b45de0e | Luca Abeni | #ifdef __GNUC__
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104 | 07c37ca7 | Stefano Sabatini | void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4))); |
105 | 4b45de0e | Luca Abeni | #else
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106 | 07c37ca7 | Stefano Sabatini | void av_log(void*, int level, const char *fmt, ...); |
107 | 4b45de0e | Luca Abeni | #endif
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108 | |||
109 | 07c37ca7 | Stefano Sabatini | void av_vlog(void*, int level, const char *fmt, va_list); |
110 | int av_log_get_level(void); |
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111 | void av_log_set_level(int); |
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112 | void av_log_set_callback(void (*)(void*, int, const char*, va_list)); |
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113 | void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl); |
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114 | 4b45de0e | Luca Abeni | |
115 | 98790382 | Stefano Sabatini | #endif /* AVUTIL_LOG_H */ |