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FFmpeg
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Describe the class of an AVClass context structure. More...
Modules | |
| Logging Constants | |
Macros | |
| #define | av_dlog(pctx,...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
| Send the specified message to the log if the level is less than or equal to the current av_log_level. | |
| #define | av_dlog(pctx,...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
| Send the specified message to the log if the level is less than or equal to the current av_log_level. | |
| #define | av_dlog(pctx,...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
| Send the specified message to the log if the level is less than or equal to the current av_log_level. | |
| #define | av_dlog(pctx,...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
| Send the specified message to the log if the level is less than or equal to the current av_log_level. | |
| #define | AV_LOG_SKIP_REPEATED 1 |
| 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. | |
| #define | AV_LOG_SKIP_REPEATED 1 |
| 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. | |
| #define | AV_LOG_SKIP_REPEATED 1 |
| 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. | |
| #define | AV_LOG_SKIP_REPEATED 1 |
| 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. | |
| #define | av_dlog(pctx,...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
| av_dlog macros Useful to print debug messages that shouldn't get compiled in normally. | |
| #define | AV_LOG_SKIP_REPEATED 1 |
| 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. | |
Functions | |
| void | av_log (void *avcl, int level, const char *fmt,...) av_printf_format(3 |
| Send the specified message to the log if the level is less than or equal to the current av_log_level. | |
| void void | av_vlog (void *avcl, int level, const char *fmt, va_list vl) |
| Send the specified message to the log if the level is less than or equal to the current av_log_level. | |
| int | av_log_get_level (void) |
| Get the current log level. | |
| void | av_log_set_level (int level) |
| Set the log level. | |
| void | av_log_set_callback (void(*callback)(void *, int, const char *, va_list)) |
| Set the logging callback. | |
| void | av_log_default_callback (void *avcl, int level, const char *fmt, va_list vl) |
| Default logging callback. | |
| const char * | av_default_item_name (void *ctx) |
| Return the context name. | |
| AVClassCategory | av_default_get_category (void *ptr) |
| void | av_log_format_line (void *ptr, int level, const char *fmt, va_list vl, char *line, int line_size, int *print_prefix) |
| Format a line of log the same way as the default callback. | |
| void | av_log_set_flags (int arg) |
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.). The name of the class; usually it is the same name as the context structure type to which the AVClass is associated. A pointer to a function which returns the name of a context instance ctx associated with the class. a pointer to the first option specified in the class if any or NULL
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. 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) Callback to return the category. available since version (51 << 16 | 59 << 8 | 100) Callback to return the supported/allowed ranges. available since version (52.12)
| #define av_dlog | ( | pctx, | |
| ... | |||
| ) | do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
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.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. 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. |
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
| vl | The arguments referenced by the format string. Get the current log level |
| level | Logging level Set the logging callback |
| callback | A logging function with a compatible signature. Default logging callback |
It prints the message to stderr, optionally colorizing it.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
| vl | The arguments referenced by the format string. Return the context name |
| ctx | The AVClass context |
| line | buffer to receive the formated line |
| line_size | size of the buffer |
| print_prefix | used to store whether the prefix must be printed; must point to a persistent integer initially set to 1 av_dlog macros Useful to print debug messages that shouldn't get compiled in normally. |
| #define av_dlog | ( | pctx, | |
| ... | |||
| ) | do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
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.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. 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. |
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
| vl | The arguments referenced by the format string. Get the current log level |
| level | Logging level Set the logging callback |
| callback | A logging function with a compatible signature. Default logging callback |
It prints the message to stderr, optionally colorizing it.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
| vl | The arguments referenced by the format string. Return the context name |
| ctx | The AVClass context |
| line | buffer to receive the formated line |
| line_size | size of the buffer |
| print_prefix | used to store whether the prefix must be printed; must point to a persistent integer initially set to 1 av_dlog macros Useful to print debug messages that shouldn't get compiled in normally. |
| #define av_dlog | ( | pctx, | |
| ... | |||
| ) | do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
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.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. 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. |
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
| vl | The arguments referenced by the format string. Get the current log level |
| level | Logging level Set the logging callback |
| callback | A logging function with a compatible signature. Default logging callback |
It prints the message to stderr, optionally colorizing it.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
| vl | The arguments referenced by the format string. Return the context name |
| ctx | The AVClass context |
| line | buffer to receive the formated line |
| line_size | size of the buffer |
| print_prefix | used to store whether the prefix must be printed; must point to a persistent integer initially set to 1 av_dlog macros Useful to print debug messages that shouldn't get compiled in normally. |
| #define av_dlog | ( | pctx, | |
| ... | |||
| ) | do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
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.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. 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. |
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
| vl | The arguments referenced by the format string. Get the current log level |
| level | Logging level Set the logging callback |
| callback | A logging function with a compatible signature. Default logging callback |
It prints the message to stderr, optionally colorizing it.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
| vl | The arguments referenced by the format string. Return the context name |
| ctx | The AVClass context |
| line | buffer to receive the formated line |
| line_size | size of the buffer |
| print_prefix | used to store whether the prefix must be printed; must point to a persistent integer initially set to 1 av_dlog macros Useful to print debug messages that shouldn't get compiled in normally. |
| #define AV_LOG_SKIP_REPEATED 1 |
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
Definition at line 18776 of file avcodec.h.
Referenced by av_log_default_callback(), main(), and opt_loglevel().
| #define AV_LOG_SKIP_REPEATED 1 |
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 |
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 |
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_dlog | ( | pctx, | |
| ... | |||
| ) | do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0) |
| #define AV_LOG_SKIP_REPEATED 1 |
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
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.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
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.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
| vl | The arguments referenced by the format string. |
Definition at line 293 of file log.c.
Referenced by ass_log(), av_log(), av_log_ask_for_sample(), ff_mp_msg(), missing_feature_sample(), report_config_error(), rtmp_log(), vs_2_av_log_wrapper(), X264_log(), and XAVS_log().
| int av_log_get_level | ( | void | ) |
Get the current log level.
Definition at line 300 of file log.c.
Referenced by avcodec_string(), check_keyboard_interaction(), filter_frame(), hex_log(), http_av_log(), init(), print_report(), and rtmp_open().
| void av_log_set_level | ( | int | level | ) |
Set the log level.
| level | Logging level |
Definition at line 305 of file log.c.
Referenced by check_keyboard_interaction(), main(), opt_default(), and opt_loglevel().
Set the logging callback.
| callback | A logging function with a compatible signature. |
Definition at line 315 of file log.c.
Referenced by init_report(), main(), show_buildconf(), show_help(), show_help_default(), and show_version().
Default logging callback.
It prints the message to stderr, optionally colorizing it.
| avcl | A pointer to an arbitrary struct of which the first field is a pointer to an AVClass struct. |
| level | The importance level of the message expressed using a Logging Constant. |
| fmt | The format string (printf-compatible) that specifies how subsequent arguments are converted to output. |
| vl | The arguments referenced by the format string. |
Definition at line 229 of file log.c.
Referenced by log_callback_report().
| const char* av_default_item_name | ( | void * | ctx | ) |
Return the context name.
| ctx | The AVClass context |
Definition at line 157 of file log.c.
Referenced by av_parse_cpu_caps(), av_parse_cpu_flags(), and vs_2_av_log_wrapper().
| AVClassCategory av_default_get_category | ( | void * | ptr | ) |
| void av_log_format_line | ( | void * | ptr, |
| int | level, | ||
| const char * | fmt, | ||
| va_list | vl, | ||
| char * | line, | ||
| int | line_size, | ||
| int * | print_prefix | ||
| ) |
Format a line of log the same way as the default callback.
| line | buffer to receive the formated line |
| line_size | size of the buffer |
| print_prefix | used to store whether the prefix must be printed; must point to a persistent integer initially set to 1 |
Definition at line 220 of file log.c.
Referenced by log_callback_report().
| void av_log_set_flags | ( | int | arg | ) |
Definition at line 310 of file log.c.
Referenced by main(), and opt_loglevel().
1.8.2
