2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #include "dnn_filter_common.h"
21 int ff_dnn_init(DnnContext *ctx, DNNFunctionType func_type, AVFilterContext *filter_ctx)
23 if (!ctx->model_filename) {
24 av_log(filter_ctx, AV_LOG_ERROR, "model file for network is not specified\n");
25 return AVERROR(EINVAL);
27 if (!ctx->model_inputname) {
28 av_log(filter_ctx, AV_LOG_ERROR, "input name of the model network is not specified\n");
29 return AVERROR(EINVAL);
31 if (!ctx->model_outputname) {
32 av_log(filter_ctx, AV_LOG_ERROR, "output name of the model network is not specified\n");
33 return AVERROR(EINVAL);
36 ctx->dnn_module = ff_get_dnn_module(ctx->backend_type);
37 if (!ctx->dnn_module) {
38 av_log(filter_ctx, AV_LOG_ERROR, "could not create DNN module for requested backend\n");
39 return AVERROR(ENOMEM);
41 if (!ctx->dnn_module->load_model) {
42 av_log(filter_ctx, AV_LOG_ERROR, "load_model for network is not specified\n");
43 return AVERROR(EINVAL);
46 ctx->model = (ctx->dnn_module->load_model)(ctx->model_filename, func_type, ctx->backend_options, filter_ctx);
48 av_log(filter_ctx, AV_LOG_ERROR, "could not load DNN model\n");
49 return AVERROR(EINVAL);
52 if (!ctx->dnn_module->execute_model_async && ctx->async) {
54 av_log(filter_ctx, AV_LOG_WARNING, "this backend does not support async execution, roll back to sync.\n");
57 #if !HAVE_PTHREAD_CANCEL
60 av_log(filter_ctx, AV_LOG_WARNING, "pthread is not supported, roll back to sync.\n");
67 DNNReturnType ff_dnn_get_input(DnnContext *ctx, DNNData *input)
69 return ctx->model->get_input(ctx->model->model, input, ctx->model_inputname);
72 DNNReturnType ff_dnn_get_output(DnnContext *ctx, int input_width, int input_height, int *output_width, int *output_height)
74 return ctx->model->get_output(ctx->model->model, ctx->model_inputname, input_width, input_height,
75 ctx->model_outputname, output_width, output_height);
78 DNNReturnType ff_dnn_execute_model(DnnContext *ctx, AVFrame *in_frame, AVFrame *out_frame)
80 return (ctx->dnn_module->execute_model)(ctx->model, ctx->model_inputname, in_frame,
81 (const char **)&ctx->model_outputname, 1, out_frame);
84 DNNReturnType ff_dnn_execute_model_async(DnnContext *ctx, AVFrame *in_frame, AVFrame *out_frame)
86 return (ctx->dnn_module->execute_model_async)(ctx->model, ctx->model_inputname, in_frame,
87 (const char **)&ctx->model_outputname, 1, out_frame);
90 DNNAsyncStatusType ff_dnn_get_async_result(DnnContext *ctx, AVFrame **in_frame, AVFrame **out_frame)
92 return (ctx->dnn_module->get_async_result)(ctx->model, in_frame, out_frame);
95 DNNReturnType ff_dnn_flush(DnnContext *ctx)
97 return (ctx->dnn_module->flush)(ctx->model);
100 void ff_dnn_uninit(DnnContext *ctx)
102 if (ctx->dnn_module) {
103 (ctx->dnn_module->free_model)(&ctx->model);
104 av_freep(&ctx->dnn_module);