FFmpeg
dnn_io_proc.h
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1 /*
2  * Copyright (c) 2020
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
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14  * Lesser General Public License for more details.
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19  */
20 
21 /**
22  * @file
23  * DNN input&output process between AVFrame and DNNData.
24  */
25 
26 
27 #ifndef AVFILTER_DNN_DNN_IO_PROC_H
28 #define AVFILTER_DNN_DNN_IO_PROC_H
29 
30 #include "../dnn_interface.h"
31 #include "libavutil/frame.h"
32 
33 int ff_proc_from_frame_to_dnn(AVFrame *frame, DNNData *input, void *log_ctx);
34 int ff_proc_from_dnn_to_frame(AVFrame *frame, DNNData *output, void *log_ctx);
35 int ff_frame_to_dnn_detect(AVFrame *frame, DNNData *input, void *log_ctx);
36 int ff_frame_to_dnn_classify(AVFrame *frame, DNNData *input, uint32_t bbox_index, void *log_ctx);
37 
38 #endif
output
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce output
Definition: filter_design.txt:225
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:389
DNNData
Definition: dnn_interface.h:69
ff_frame_to_dnn_detect
int ff_frame_to_dnn_detect(AVFrame *frame, DNNData *input, void *log_ctx)
Definition: dnn_io_proc.c:423
ff_proc_from_frame_to_dnn
int ff_proc_from_frame_to_dnn(AVFrame *frame, DNNData *input, void *log_ctx)
Definition: dnn_io_proc.c:182
ff_proc_from_dnn_to_frame
int ff_proc_from_dnn_to_frame(AVFrame *frame, DNNData *output, void *log_ctx)
Definition: dnn_io_proc.c:42
frame.h
input
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some input
Definition: filter_design.txt:172
ff_frame_to_dnn_classify
int ff_frame_to_dnn_classify(AVFrame *frame, DNNData *input, uint32_t bbox_index, void *log_ctx)
Definition: dnn_io_proc.c:340
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
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