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FFmpeg
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A link between two filters. More...
#include <avfilter.h>
Data Fields | |
| AVFilterContext * | src |
| source filter More... | |
| AVFilterPad * | srcpad |
| output pad on the source filter More... | |
| AVFilterContext * | dst |
| dest filter More... | |
| AVFilterPad * | dstpad |
| input pad on the dest filter More... | |
| enum AVMediaType | type |
| filter media type More... | |
| int | format |
| agreed upon media format More... | |
| int | w |
| agreed upon image width More... | |
| int | h |
| agreed upon image height More... | |
| AVRational | sample_aspect_ratio |
| agreed upon sample aspect ratio More... | |
| enum AVColorSpace | colorspace |
| For non-YUV links, these are respectively set to fallback values (as appropriate for that colorspace). More... | |
| enum AVColorRange | color_range |
| agreed upon YUV color range More... | |
| int | sample_rate |
| samples per second More... | |
| AVChannelLayout | ch_layout |
| channel layout of current buffer (see libavutil/channel_layout.h) More... | |
| AVRational | time_base |
| Define the time base used by the PTS of the frames/samples which will pass through this link. More... | |
| AVFilterFormatsConfig | incfg |
| Lists of supported formats / etc. More... | |
| AVFilterFormatsConfig | outcfg |
| Lists of supported formats / etc. More... | |
| struct AVFilterGraph * | graph |
| Graph the filter belongs to. More... | |
| int64_t | current_pts |
| Current timestamp of the link, as defined by the most recent frame(s), in link time_base units. More... | |
| int64_t | current_pts_us |
| Current timestamp of the link, as defined by the most recent frame(s), in AV_TIME_BASE units. More... | |
| AVRational | frame_rate |
| Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0, will be automatically copied from the first input of the source filter if it exists. More... | |
| int | min_samples |
| Minimum number of samples to filter at once. More... | |
| int | max_samples |
| Maximum number of samples to filter at once. More... | |
| int64_t | frame_count_in |
| Number of past frames sent through the link. More... | |
| int64_t | frame_count_out |
| int64_t | sample_count_in |
| Number of past samples sent through the link. More... | |
| int64_t | sample_count_out |
| int | frame_wanted_out |
| True if a frame is currently wanted on the output of this filter. More... | |
| AVBufferRef * | hw_frames_ctx |
| For hwaccel pixel formats, this should be a reference to the AVHWFramesContext describing the frames. More... | |
A link between two filters.
This contains pointers to the source and destination filters between which this link exists, and the indexes of the pads involved. In addition, this link also contains the parameters which have been negotiated and agreed upon between the filter, such as image dimensions, format, etc.
Applications must not normally access the link structure directly. Use the buffersrc and buffersink API instead. In the future, access to the header may be reserved for filters implementation.
Definition at line 542 of file avfilter.h.
| AVFilterContext* AVFilterLink::src |
source filter
Definition at line 543 of file avfilter.h.
Referenced by aconfig_props(), activate(), aeval_config_output(), audio_frame(), avfilter_graph_dump_to_buf(), bwdif_vulkan_config_output(), compand_drain(), compressor_config_output(), config_audio_output(), config_comm_output(), config_eq_output(), config_filter(), config_out_props(), config_output(), config_output_props(), config_props(), config_props_output(), config_props_ref(), config_video(), config_video_output(), copy_column(), create_frame(), cuda_bilateral_config_props(), cudachromakey_config_props(), cudacolorspace_config_props(), cudascale_config_props(), cudaupload_config_output(), ddagrab_config_props(), ddagrab_request_frame(), deint_vaapi_config_output(), dnn_classify_flush_frame(), dnn_detect_flush_frame(), extract_plane(), ff_opencl_filter_config_output(), ff_vaapi_vpp_config_output(), ff_vk_filter_config_output(), ff_yadif_config_output_common(), filter_callback(), filter_frame(), fir_frame(), flush(), flush_frame(), fsync_config_props(), headphone_frame(), horizontal_frame_pack(), hwdownload_config_output(), hwmap_config_output(), hwupload_config_output(), join_config_output(), libplacebo_config_output(), lut2_config_output(), movie_config_output_props(), nppsharpen_config_props(), npptranspose_config_props(), output_frame(), overlay_cuda_config_output(), overlay_opencl_config_output(), overlay_vaapi_config_output(), overlay_vulkan_config_output(), pad_opencl_config_output(), prepare_uv_scale(), program_opencl_config_output(), program_opencl_request_frame(), push_frame(), push_single_pic(), qrencodesrc_config_props(), query_frame(), request_frame(), request_frame_ref(), scale_vaapi_config_output(), scale_vt_config_output(), scale_vulkan_config_output(), source_config_props(), source_request_frame(), spatial_frame_pack(), testsrc_vulkan_config_props(), tonemap_opencl_config_output(), transpose_opencl_config_output(), transpose_vaapi_vpp_config_output(), transpose_vt_config_output(), transpose_vt_recreate_hw_ctx(), vertical_frame_pack(), video_frame(), and xfade_opencl_config_output().
| AVFilterPad* AVFilterLink::srcpad |
output pad on the source filter
Definition at line 544 of file avfilter.h.
Referenced by avfilter_graph_dump_to_buf(), and config_output().
| AVFilterContext* AVFilterLink::dst |
dest filter
Definition at line 546 of file avfilter.h.
Referenced by avfilter_graph_dump_to_buf(), avfilter_graph_request_oldest(), config_props(), and create_frame().
| AVFilterPad* AVFilterLink::dstpad |
input pad on the dest filter
Definition at line 547 of file avfilter.h.
Referenced by avfilter_graph_dump_to_buf(), and avfilter_graph_request_oldest().
| enum AVMediaType AVFilterLink::type |
filter media type
Definition at line 549 of file avfilter.h.
Referenced by activate(), config_output(), draw_items(), graph_check_links(), query_formats(), reduce_formats_on_filter(), swap_channel_layouts_on_filter(), swap_sample_fmts_on_filter(), and swap_samplerates_on_filter().
| int AVFilterLink::format |
agreed upon media format
Definition at line 551 of file avfilter.h.
Referenced by config_audio_output(), config_out_props(), config_output(), config_props(), config_props_output(), copy_column(), draw_items(), ff_scale_eval_dimensions(), filter_frame(), get_buffer(), graph_check_links(), hwdownload_config_output(), hwmap_config_output(), hwmap_filter_frame(), hwupload_config_output(), hwupload_filter_frame(), init_filters(), init_vpp_session(), libplacebo_config_output(), lut2_config_output(), output_frame(), output_single_frame(), qrencodesrc_config_props(), scale_eval_dimensions(), scale_frame(), send_silence(), and try_push_frame().
| int AVFilterLink::w |
agreed upon image width
Definition at line 554 of file avfilter.h.
Referenced by activate(), alloc_out_frame(), apply_lut(), apply_palette(), avgblur_opencl_filter_frame(), avgblur_vulkan_filter_frame(), blend_frame(), blend_frames(), blur_frame(), bwdif_vulkan_config_output(), chromaber_vulkan_filter_frame(), clear_picture(), color_balance16(), color_balance8(), config_comm_output(), config_out_props(), config_output(), config_output_props(), config_props(), config_props_output(), config_props_ref(), config_video(), config_video_output(), convert_frame(), convolution_opencl_filter_frame(), correct_frame(), create_frame(), cudacolorspace_config_props(), cudacolorspace_conv(), cudacolorspace_filter_frame(), cudascale_config_props(), cudascale_filter_frame(), cudascale_scale(), cudaupload_filter_frame(), ddagrab_config_props(), deshake_opencl_init(), do_morpho(), draw_background(), draw_items(), draw_legend(), draw_spatial(), extract_plane(), ff_opencl_filter_config_output(), ff_vaapi_vpp_config_output(), ff_vk_filter_config_output(), ff_yadif_config_output_common(), filter(), filter_color(), filter_color2(), filter_frame(), filter_mono(), flip_bayer(), gblur_vulkan_filter_frame(), geq_filter_frame(), get_buffer(), get_frame(), get_palette_frame(), graph_check_links(), hwdownload_config_output(), hwdownload_filter_frame(), hwmap_config_output(), hwupload_filter_frame(), init_vpp_session(), libplacebo_config_output(), lut2_config_output(), movie_config_output_props(), neighbor_opencl_filter_frame(), nlmeans_opencl_filter_frame(), nppscale_eval_dimensions(), nppscale_filter_frame(), nppscale_scale(), nppsharpen_config_props(), npptranspose_config_props(), output_frame(), output_single_frame(), overlay_opencl_blend(), overlay_vaapi_blend(), overlay_vaapi_config_output(), overlay_vulkan_blend(), pad_opencl_config_output(), plot_cqt(), plot_freqs(), plot_spectrum_column(), pp_filter_frame(), prepare_uv_scale(), process_frame(), program_opencl_run(), push_single_pic(), qrencodesrc_config_props(), query_frame(), remap_opencl_process_frame(), request_frame(), scale_eval_dimensions(), scale_frame(), scale_vaapi_config_output(), scale_vt_config_output(), scale_vt_filter_frame(), scale_vulkan_filter_frame(), source_config_props(), source_request_frame(), testsrc_vulkan_config_props(), tonemap_opencl_filter_frame(), transpose_opencl_config_output(), transpose_opencl_filter_frame(), transpose_vaapi_vpp_config_output(), transpose_vt_config_output(), transpose_vt_filter_frame(), transpose_vt_recreate_hw_ctx(), try_push_frame(), unsharp_opencl_filter_frame(), update_crops(), video_frame(), xfade_frame(), and xfade_opencl_config_output().
| int AVFilterLink::h |
agreed upon image height
Definition at line 555 of file avfilter.h.
Referenced by activate(), alloc_out_frame(), apply_lut(), apply_palette(), avgblur_opencl_filter_frame(), avgblur_vulkan_filter_frame(), blend_frame(), blend_frames(), blur_frame(), bwdif_vulkan_config_output(), calc_max_draw(), chromaber_vulkan_filter_frame(), clear_picture(), config_comm_output(), config_out_props(), config_output(), config_output_props(), config_props(), config_props_output(), config_props_ref(), config_video(), config_video_output(), convert_frame(), convolution_opencl_filter_frame(), copy_column(), correct_frame(), create_frame(), cudacolorspace_config_props(), cudacolorspace_conv(), cudacolorspace_filter_frame(), cudascale_config_props(), cudascale_filter_frame(), cudascale_scale(), cudaupload_filter_frame(), ddagrab_config_props(), deshake_opencl_init(), do_morpho(), draw_background(), draw_items(), draw_legend(), draw_sierpinski(), draw_spatial(), extract_plane(), ff_opencl_filter_config_output(), ff_vaapi_vpp_config_output(), ff_vk_filter_config_output(), ff_yadif_config_output_common(), filter(), filter_color(), filter_color2(), filter_frame(), filter_mono(), flip_bayer(), gblur_vulkan_filter_frame(), geq_filter_frame(), get_buffer(), get_frame(), get_palette_frame(), graph_check_links(), hwdownload_config_output(), hwdownload_filter_frame(), hwmap_config_output(), hwupload_filter_frame(), init_vpp_session(), libplacebo_config_output(), lut2_config_output(), movie_config_output_props(), neighbor_opencl_filter_frame(), nlmeans_opencl_filter_frame(), nppscale_eval_dimensions(), nppscale_filter_frame(), nppscale_scale(), nppsharpen_config_props(), npptranspose_config_props(), oscilloscope_filter_frame(), output_frame(), output_single_frame(), overlay_opencl_blend(), overlay_vaapi_blend(), overlay_vaapi_config_output(), overlay_vulkan_blend(), pad_opencl_config_output(), plot_cqt(), plot_freq(), plot_freqs(), plot_spectrum_column(), pp_filter_frame(), prepare_uv_scale(), process_frame(), program_opencl_run(), push_single_pic(), qrencodesrc_config_props(), query_frame(), remap_opencl_process_frame(), request_frame(), scale_eval_dimensions(), scale_frame(), scale_vaapi_config_output(), scale_vt_config_output(), scale_vt_filter_frame(), scale_vulkan_filter_frame(), source_config_props(), source_request_frame(), testsrc_vulkan_config_props(), tonemap_opencl_filter_frame(), transpose_opencl_config_output(), transpose_opencl_filter_frame(), transpose_vaapi_vpp_config_output(), transpose_vt_config_output(), transpose_vt_filter_frame(), transpose_vt_recreate_hw_ctx(), try_push_frame(), unsharp_opencl_filter_frame(), update_crops(), video_frame(), xfade_frame(), xfade_opencl_config_output(), and xfade_slice().
| AVRational AVFilterLink::sample_aspect_ratio |
agreed upon sample aspect ratio
Definition at line 556 of file avfilter.h.
Referenced by config_comm_output(), config_out_props(), config_output(), config_props(), config_props_output(), config_props_ref(), config_video(), config_video_output(), cuda_bilateral_config_props(), cudachromakey_config_props(), cudacolorspace_config_props(), cudascale_config_props(), filter_frame(), libplacebo_config_output(), lut2_config_output(), nppscale_eval_dimensions(), nppsharpen_config_props(), npptranspose_config_props(), process_frame(), scale_eval_dimensions(), scale_vaapi_config_output(), scale_vt_config_output(), source_config_props(), testsrc_vulkan_config_props(), transpose_opencl_config_output(), update_crops(), and xfade_opencl_config_output().
| enum AVColorSpace AVFilterLink::colorspace |
For non-YUV links, these are respectively set to fallback values (as appropriate for that colorspace).
Note: This includes grayscale formats, as these are currently treated as forced full range always. agreed upon YUV color space
Definition at line 564 of file avfilter.h.
Referenced by config_out_props(), config_output(), config_props(), config_props_ref(), filter_frame(), output_frame(), qrencodesrc_config_props(), and scale_frame().
| enum AVColorRange AVFilterLink::color_range |
agreed upon YUV color range
Definition at line 565 of file avfilter.h.
Referenced by config_out_props(), config_output(), config_props(), config_props_ref(), filter_frame(), output_frame(), qrencodesrc_config_props(), and scale_frame().
| int AVFilterLink::sample_rate |
samples per second
Definition at line 568 of file avfilter.h.
Referenced by aconfig_props(), analyze_frame(), compressor_config_output(), config_audio_output(), config_eq_output(), config_filter(), config_output(), config_props(), crossover_setup(), draw_items(), filter_frame(), flush_frame(), get_buffer(), init_filters(), output_frame(), process_command(), push_frame(), push_samples(), request_frame(), and try_push_frame().
| AVChannelLayout AVFilterLink::ch_layout |
channel layout of current buffer (see libavutil/channel_layout.h)
Definition at line 569 of file avfilter.h.
Referenced by activate(), aeval_config_output(), channelmap_filter_frame(), compand_drain(), compressor(), config_audio_output(), config_filter(), config_output(), config_props(), crossover_setup(), draw_items(), filter_frame(), fir_frame(), gate(), get_buffer(), init_filters(), output_frame(), request_frame(), send_silence(), and try_push_frame().
| AVRational AVFilterLink::time_base |
Define the time base used by the PTS of the frames/samples which will pass through this link.
During the configuration stage, each filter is supposed to change only the output timebase, while the timebase of the input link is assumed to be an unchangeable property.
Definition at line 578 of file avfilter.h.
Referenced by aconfig_props(), activate(), audio_frame(), compand_drain(), config_comm_output(), config_out_props(), config_output(), config_output_props(), config_props(), config_props_output(), config_props_ref(), config_video(), config_video_output(), ddagrab_config_props(), decode_packet(), deint_vaapi_config_output(), do_morpho(), draw_items(), draw_spatial(), ff_framesync_init_dualinput(), ff_qsvvpp_filter_frame(), ff_yadif_config_output_common(), filter_callback(), filter_frame(), fsync_config_props(), handle_input(), init_framesync(), interpolate(), libplacebo_activate(), libplacebo_config_output(), lut2_config_output(), main(), movie_config_output_props(), output_frame(), output_single_frame(), overlay_vaapi_config_output(), plot_freqs(), plot_spectrum_column(), process_frame(), program_opencl_config_output(), push_frame(), push_samples(), qrencodesrc_config_props(), query_frame(), read_frame(), request_frame(), rescale_pts(), send_silence(), source_config_props(), testsrc_vulkan_config_props(), try_push_frame(), update_crops(), update_eof_pts(), video_frame(), xfade_activate(), and xfade_opencl_config_output().
| AVFilterFormatsConfig AVFilterLink::incfg |
Lists of supported formats / etc.
supported by the input filter.
Definition at line 591 of file avfilter.h.
Referenced by aeval_query_formats(), ff_vaapi_vpp_query_formats(), hwdownload_query_formats(), hwmap_query_formats(), hwupload_query_formats(), movie_query_formats(), query_formats(), reduce_formats_on_filter(), swap_channel_layouts_on_filter(), swap_sample_fmts_on_filter(), and swap_samplerates_on_filter().
| AVFilterFormatsConfig AVFilterLink::outcfg |
Lists of supported formats / etc.
supported by the output filter.
Definition at line 596 of file avfilter.h.
Referenced by ff_vaapi_vpp_query_formats(), hwdownload_query_formats(), hwmap_query_formats(), hwupload_query_formats(), and query_formats().
| struct AVFilterGraph* AVFilterLink::graph |
Graph the filter belongs to.
Definition at line 601 of file avfilter.h.
| int64_t AVFilterLink::current_pts |
Current timestamp of the link, as defined by the most recent frame(s), in link time_base units.
Definition at line 607 of file avfilter.h.
| int64_t AVFilterLink::current_pts_us |
Current timestamp of the link, as defined by the most recent frame(s), in AV_TIME_BASE units.
Definition at line 613 of file avfilter.h.
Referenced by draw_items(), heap_bubble_down(), and heap_bubble_up().
| AVRational AVFilterLink::frame_rate |
Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0, will be automatically copied from the first input of the source filter if it exists.
Sources should set it to the best estimation of the real frame rate. If the source frame rate is unknown or variable, set this to 1/0. Filters should update it if necessary depending on their function. Sinks can use it to set a default output frame rate. It is similar to the r_frame_rate field in AVStream.
Definition at line 626 of file avfilter.h.
Referenced by activate(), config_comm_output(), config_out_props(), config_output(), config_output_props(), config_output_video(), config_props(), config_props_output(), config_props_ref(), config_video(), config_video_output(), ddagrab_config_props(), deint_vaapi_config_output(), deshake_opencl_init(), draw_items(), ff_yadif_config_output_common(), filter_frame(), fsync_config_props(), libplacebo_activate(), libplacebo_config_output(), lut2_config_output(), movie_config_output_props(), output_frame(), qrencodesrc_config_props(), query_frame(), source_config_props(), testsrc_vulkan_config_props(), try_push_frame(), and xfade_opencl_config_output().
| int AVFilterLink::min_samples |
Minimum number of samples to filter at once.
If filter_frame() is called with fewer samples, it will accumulate them in fifo. This field and the related ones must not be changed after filtering has started. If 0, all related fields are ignored.
Definition at line 635 of file avfilter.h.
| int AVFilterLink::max_samples |
Maximum number of samples to filter at once.
If filter_frame() is called with more samples, it will split them.
Definition at line 641 of file avfilter.h.
| int64_t AVFilterLink::frame_count_in |
Number of past frames sent through the link.
Definition at line 646 of file avfilter.h.
Referenced by activate(), calc_persp_luts(), draw_items(), filter_frame(), output_single_frame(), plot_freq(), and request_frame().
| int64_t AVFilterLink::frame_count_out |
Definition at line 646 of file avfilter.h.
Referenced by avfilter_graph_request_oldest(), draw_items(), libplacebo_activate(), and process_frame().
| int64_t AVFilterLink::sample_count_in |
Number of past samples sent through the link.
Definition at line 651 of file avfilter.h.
Referenced by activate(), analyze_frame(), draw_items(), and filter_frame().
| int64_t AVFilterLink::sample_count_out |
Definition at line 651 of file avfilter.h.
Referenced by draw_items().
| int AVFilterLink::frame_wanted_out |
True if a frame is currently wanted on the output of this filter.
Set when ff_request_frame() is called by the output, cleared when a frame is filtered.
Definition at line 658 of file avfilter.h.
Referenced by avfilter_graph_request_oldest().
| AVBufferRef* AVFilterLink::hw_frames_ctx |
For hwaccel pixel formats, this should be a reference to the AVHWFramesContext describing the frames.
Definition at line 664 of file avfilter.h.
Referenced by bwdif_vulkan_config_output(), config_output(), config_props_output(), cudaupload_config_output(), ddagrab_config_props(), ff_opencl_filter_config_output(), ff_vaapi_vpp_config_output(), ff_vk_filter_config_output(), hwmap_config_output(), hwupload_config_output(), init_vpp_session(), libplacebo_config_output(), nppscale_filter_frame(), nppsharpen_filter_frame(), npptranspose_config_props(), npptranspose_filter_frame(), overlay_cuda_config_output(), query_frame(), scale_vt_config_output(), testsrc_vulkan_config_props(), transpose_opencl_config_output(), transpose_vaapi_vpp_config_output(), transpose_vt_config_output(), and transpose_vt_recreate_hw_ctx().
1.8.17