|
FFmpeg 7.1.1
|
An instance of a filter. More...
#include <libavfilter/avfilter.h>
Data Fields | |
| const AVClass * | av_class |
| needed for av_log() and filters common options | |
| const AVFilter * | filter |
| the AVFilter of which this is an instance | |
| char * | name |
| name of this filter instance | |
| AVFilterPad * | input_pads |
| array of input pads | |
| AVFilterLink ** | inputs |
| array of pointers to input links | |
| unsigned | nb_inputs |
| number of input pads | |
| AVFilterPad * | output_pads |
| array of output pads | |
| AVFilterLink ** | outputs |
| array of pointers to output links | |
| unsigned | nb_outputs |
| number of output pads | |
| void * | priv |
| private data for use by the filter | |
| struct AVFilterGraph * | graph |
| filtergraph this filter belongs to | |
| int | thread_type |
| Type of multithreading being allowed/used. | |
| int | nb_threads |
| Max number of threads allowed in this filter instance. | |
| struct AVFilterCommand * | command_queue |
| char * | enable_str |
| enable expression string | |
| void * | enable |
| parsed expression (AVExpr*) | |
| double * | var_values |
| variable values for the enable expression | |
| int | is_disabled |
| the enabled state from the last expression evaluation | |
| AVBufferRef * | hw_device_ctx |
| For filters which will create hardware frames, sets the device the filter should create them in. | |
| unsigned | ready |
| Ready status of the filter. | |
| int | extra_hw_frames |
| Sets the number of extra hardware frames which the filter will allocate on its output links for use in following filters or by the caller. | |
An instance of a filter.
Definition at line 457 of file avfilter.h.
| const AVClass* AVFilterContext::av_class |
needed for av_log() and filters common options
Definition at line 458 of file avfilter.h.
| const AVFilter* AVFilterContext::filter |
the AVFilter of which this is an instance
Definition at line 460 of file avfilter.h.
| char* AVFilterContext::name |
name of this filter instance
Definition at line 462 of file avfilter.h.
| AVFilterPad* AVFilterContext::input_pads |
array of input pads
Definition at line 464 of file avfilter.h.
| AVFilterLink** AVFilterContext::inputs |
array of pointers to input links
Definition at line 465 of file avfilter.h.
Referenced by init_filters(), and main().
| unsigned AVFilterContext::nb_inputs |
number of input pads
Definition at line 466 of file avfilter.h.
| AVFilterPad* AVFilterContext::output_pads |
array of output pads
Definition at line 468 of file avfilter.h.
| AVFilterLink** AVFilterContext::outputs |
array of pointers to output links
Definition at line 469 of file avfilter.h.
| unsigned AVFilterContext::nb_outputs |
number of output pads
Definition at line 470 of file avfilter.h.
| void* AVFilterContext::priv |
private data for use by the filter
Definition at line 472 of file avfilter.h.
| struct AVFilterGraph* AVFilterContext::graph |
filtergraph this filter belongs to
Definition at line 474 of file avfilter.h.
| int AVFilterContext::thread_type |
Type of multithreading being allowed/used.
A combination of AVFILTER_THREAD_* flags.
May be set by the caller before initializing the filter to forbid some or all kinds of multithreading for this filter. The default is allowing everything.
When the filter is initialized, this field is combined using bit AND with AVFilterGraph.thread_type to get the final mask used for determining allowed threading types. I.e. a threading type needs to be set in both to be allowed.
After the filter is initialized, libavfilter sets this field to the threading type that is actually used (0 for no multithreading).
Definition at line 492 of file avfilter.h.
| int AVFilterContext::nb_threads |
Max number of threads allowed in this filter instance.
If <= 0, its value is ignored. Overrides global number of threads set per filter graph.
Definition at line 499 of file avfilter.h.
| struct AVFilterCommand* AVFilterContext::command_queue |
Definition at line 501 of file avfilter.h.
| char* AVFilterContext::enable_str |
enable expression string
Definition at line 503 of file avfilter.h.
| void* AVFilterContext::enable |
parsed expression (AVExpr*)
Definition at line 504 of file avfilter.h.
| double* AVFilterContext::var_values |
variable values for the enable expression
Definition at line 505 of file avfilter.h.
| int AVFilterContext::is_disabled |
the enabled state from the last expression evaluation
Definition at line 506 of file avfilter.h.
| AVBufferRef* AVFilterContext::hw_device_ctx |
For filters which will create hardware frames, sets the device the filter should create them in.
All other filters will ignore this field: in particular, a filter which consumes or processes hardware frames will instead use the hw_frames_ctx field in AVFilterLink to carry the hardware context information.
May be set by the caller on filters flagged with AVFILTER_FLAG_HWDEVICE before initializing the filter with avfilter_init_str() or avfilter_init_dict().
Definition at line 519 of file avfilter.h.
| unsigned AVFilterContext::ready |
Ready status of the filter.
A non-0 value means that the filter needs activating; a higher value suggests a more urgent activation.
Definition at line 526 of file avfilter.h.
| int AVFilterContext::extra_hw_frames |
Sets the number of extra hardware frames which the filter will allocate on its output links for use in following filters or by the caller.
Some hardware filters require all frames that they will use for output to be defined in advance before filtering starts. For such filters, any hardware frame pools used for output must therefore be of fixed size. The extra frames set here are on top of any number that the filter needs internally in order to operate normally.
This field must be set before the graph containing this filter is configured.
Definition at line 542 of file avfilter.h.
1.9.8