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FFmpeg 5.1.6
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An instance of a filter. More...
#include <libavfilter/avfilter.h>
Data Fields | |
| const AVClass * | av_class |
| needed for av_log() and filters common options More... | |
| const AVFilter * | filter |
| the AVFilter of which this is an instance More... | |
| char * | name |
| name of this filter instance More... | |
| AVFilterPad * | input_pads |
| array of input pads More... | |
| AVFilterLink ** | inputs |
| array of pointers to input links More... | |
| unsigned | nb_inputs |
| number of input pads More... | |
| AVFilterPad * | output_pads |
| array of output pads More... | |
| AVFilterLink ** | outputs |
| array of pointers to output links More... | |
| unsigned | nb_outputs |
| number of output pads More... | |
| void * | priv |
| private data for use by the filter More... | |
| struct AVFilterGraph * | graph |
| filtergraph this filter belongs to More... | |
| int | thread_type |
| Type of multithreading being allowed/used. More... | |
| AVFilterInternal * | internal |
| An opaque struct for libavfilter internal use. More... | |
| struct AVFilterCommand * | command_queue |
| char * | enable_str |
| enable expression string More... | |
| void * | enable |
| parsed expression (AVExpr*) More... | |
| double * | var_values |
| variable values for the enable expression More... | |
| int | is_disabled |
| the enabled state from the last expression evaluation More... | |
| AVBufferRef * | hw_device_ctx |
| For filters which will create hardware frames, sets the device the filter should create them in. More... | |
| int | nb_threads |
| Max number of threads allowed in this filter instance. More... | |
| unsigned | ready |
| Ready status of the filter. More... | |
| 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. More... | |
An instance of a filter.
Definition at line 408 of file avfilter.h.
| const AVClass* AVFilterContext::av_class |
needed for av_log() and filters common options
Definition at line 409 of file avfilter.h.
| const AVFilter* AVFilterContext::filter |
the AVFilter of which this is an instance
Definition at line 411 of file avfilter.h.
| char* AVFilterContext::name |
name of this filter instance
Definition at line 413 of file avfilter.h.
| AVFilterPad* AVFilterContext::input_pads |
array of input pads
Definition at line 415 of file avfilter.h.
| AVFilterLink** AVFilterContext::inputs |
array of pointers to input links
Definition at line 416 of file avfilter.h.
Referenced by init_filters(), and main().
| unsigned AVFilterContext::nb_inputs |
number of input pads
Definition at line 417 of file avfilter.h.
| AVFilterPad* AVFilterContext::output_pads |
array of output pads
Definition at line 419 of file avfilter.h.
| AVFilterLink** AVFilterContext::outputs |
array of pointers to output links
Definition at line 420 of file avfilter.h.
| unsigned AVFilterContext::nb_outputs |
number of output pads
Definition at line 421 of file avfilter.h.
| void* AVFilterContext::priv |
private data for use by the filter
Definition at line 423 of file avfilter.h.
| struct AVFilterGraph* AVFilterContext::graph |
filtergraph this filter belongs to
Definition at line 425 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 443 of file avfilter.h.
| AVFilterInternal* AVFilterContext::internal |
An opaque struct for libavfilter internal use.
Definition at line 448 of file avfilter.h.
| struct AVFilterCommand* AVFilterContext::command_queue |
Definition at line 450 of file avfilter.h.
| char* AVFilterContext::enable_str |
enable expression string
Definition at line 452 of file avfilter.h.
| void* AVFilterContext::enable |
parsed expression (AVExpr*)
Definition at line 453 of file avfilter.h.
| double* AVFilterContext::var_values |
variable values for the enable expression
Definition at line 454 of file avfilter.h.
| int AVFilterContext::is_disabled |
the enabled state from the last expression evaluation
Definition at line 455 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.
Definition at line 464 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 471 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 478 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 494 of file avfilter.h.
1.9.4