#include <log.h>
Data Fields | |
| const char * | class_name |
| The name of the class; usually it is the same name as the context structure type to which the AVClass is associated. | |
| const char *(* | item_name )(void *ctx) |
| A pointer to a function which returns the name of a context instance ctx associated with the class. | |
| struct AVOption * | option |
| a pointer to the first option specified in the class if any or NULL | |
| int | version |
| LIBAVUTIL_VERSION with which this structure was created. | |
| int | log_level_offset_offset |
| Offset in the structure where log_level_offset is stored. | |
| int | parent_log_context_offset |
| Offset in the structure where a pointer to the parent context for loging is stored. | |
| void *(* | child_next )(void *obj, void *prev) |
| Return next AVOptions-enabled child or NULL. | |
| struct AVClass *(* | child_class_next )(const struct AVClass *prev) |
| Return an AVClass corresponding to next potential AVOptions-enabled child. | |
| AVClassCategory | category |
| Category used for visualization (like color) This is only set if the category is equal for all objects using this class. | |
| AVClassCategory(* | get_category )(void *ctx) |
| Callback to return the category. | |
That is an arbitrary struct of which the first field is a pointer to an AVClass struct (e.g. AVCodecContext, AVFormatContext etc.).
Definition at line 48 of file log.h.
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)
Definition at line 110 of file log.h.
Referenced by get_category().
struct AVClass*(* AVClass::child_class_next)(const struct AVClass *prev) [read] |
Return an AVClass corresponding to 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.
Referenced by av_opt_child_class_next().
| void*(* AVClass::child_next)(void *obj, void *prev) |
| const char* AVClass::class_name |
The name of the class; usually it is the same name as the context structure type to which the AVClass is associated.
Definition at line 53 of file log.h.
Referenced by show_format_opts().
| AVClassCategory(* AVClass::get_category)(void *ctx) |
Callback to return the category.
available since version (51 << 16 | 59 << 8 | 100)
Referenced by get_category().
| const char*(* AVClass::item_name)(void *ctx) |
A pointer to a function which returns the name of a context instance ctx associated with the class.
Referenced by format_line(), and http_av_log().
struct AVOption* AVClass::option [read] |
Offset in the structure where a pointer to the parent context for loging is stored.
for example a decoder that uses eval.c could pass its AVCodecContext to eval as such parent context. And a av_log() implementation could then display the parent context can be NULL of course
Definition at line 88 of file log.h.
Referenced by format_line().
LIBAVUTIL_VERSION with which this structure was created.
This is used to allow fields to be added without requiring major version bumps everywhere.
Definition at line 74 of file log.h.
Referenced by av_log(), and get_category().
1.5.8