#include "libswscale/swscale.h"
#include "dnn_interface.h"
-typedef enum {SRCNN, ESPCN} SRModel;
-
typedef struct SRContext {
const AVClass *class;
- SRModel model_type;
char *model_filename;
DNNBackendType backend_type;
DNNModule *dnn_module;
#define OFFSET(x) offsetof(SRContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
static const AVOption sr_options[] = {
- { "model", "specifies what DNN model to use", OFFSET(model_type), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, 0, 1, FLAGS, "model_type" },
- { "srcnn", "Super-Resolution Convolutional Neural Network model (scale factor should be specified for custom SRCNN model)", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FLAGS, "model_type" },
- { "espcn", "Efficient Sub-Pixel Convolutional Neural Network model", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, FLAGS, "model_type" },
{ "dnn_backend", "DNN backend used for model execution", OFFSET(backend_type), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, 0, 1, FLAGS, "backend" },
{ "native", "native backend flag", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FLAGS, "backend" },
#if (CONFIG_LIBTENSORFLOW == 1)
{ "tensorflow", "tensorflow backend flag", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, FLAGS, "backend" },
#endif
- {"scale_factor", "scale factor for SRCNN model", OFFSET(scale_factor), AV_OPT_TYPE_INT, { .i64 = 2 }, 2, 4, FLAGS},
- { "model_filename", "path to model file specifying network architecture and its parameters", OFFSET(model_filename), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
+ { "scale_factor", "scale factor for SRCNN model", OFFSET(scale_factor), AV_OPT_TYPE_INT, { .i64 = 2 }, 2, 4, FLAGS },
+ { "model", "path to model file specifying network architecture and its parameters", OFFSET(model_filename), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
{ NULL }
};
return AVERROR(ENOMEM);
}
if (!sr_context->model_filename){
- av_log(context, AV_LOG_VERBOSE, "model file for network was not specified, using default network for x2 upsampling\n");
- sr_context->scale_factor = 2;
- switch (sr_context->model_type){
- case SRCNN:
- sr_context->model = (sr_context->dnn_module->load_default_model)(DNN_SRCNN);
- break;
- case ESPCN:
- sr_context->model = (sr_context->dnn_module->load_default_model)(DNN_ESPCN);
- }
+ av_log(context, AV_LOG_ERROR, "model file for network was not specified\n");
+ return AVERROR(EIO);
}
else{
- sr_context->model = (sr_context->dnn_module->load_model)(sr_context->model_filename);
+ if (!sr_context->dnn_module->load_model) {
+ av_log(context, AV_LOG_ERROR, "load_model for network was not specified\n");
+ return AVERROR(EIO);
+ } else {
+ sr_context->model = (sr_context->dnn_module->load_model)(sr_context->model_filename);
+ }
}
if (!sr_context->model){
av_log(context, AV_LOG_ERROR, "could not load DNN model\n");
DNNReturnType result;
int sws_src_h, sws_src_w, sws_dst_h, sws_dst_w;
- switch (sr_context->model_type){
- case SRCNN:
- sr_context->input.width = inlink->w * sr_context->scale_factor;
- sr_context->input.height = inlink->h * sr_context->scale_factor;
- break;
- case ESPCN:
- sr_context->input.width = inlink->w;
- sr_context->input.height = inlink->h;
- }
+ sr_context->input.width = inlink->w * sr_context->scale_factor;
+ sr_context->input.height = inlink->h * sr_context->scale_factor;
sr_context->input.channels = 1;
result = (sr_context->model->set_input_output)(sr_context->model->model, &sr_context->input, &sr_context->output);
return AVERROR(EIO);
}
else{
+ if (sr_context->input.height != sr_context->output.height || sr_context->input.width != sr_context->output.width){
+ sr_context->input.width = inlink->w;
+ sr_context->input.height = inlink->h;
+ result = (sr_context->model->set_input_output)(sr_context->model->model, &sr_context->input, &sr_context->output);
+ if (result != DNN_SUCCESS){
+ av_log(context, AV_LOG_ERROR, "could not set input and output for the model\n");
+ return AVERROR(EIO);
+ }
+ sr_context->scale_factor = 0;
+ }
outlink->h = sr_context->output.height;
outlink->w = sr_context->output.width;
sr_context->sws_contexts[1] = sws_getContext(sr_context->input.width, sr_context->input.height, AV_PIX_FMT_GRAY8,
av_log(context, AV_LOG_ERROR, "could not create SwsContext for conversions\n");
return AVERROR(ENOMEM);
}
- switch (sr_context->model_type){
- case SRCNN:
+ if (sr_context->scale_factor){
sr_context->sws_contexts[0] = sws_getContext(inlink->w, inlink->h, inlink->format,
outlink->w, outlink->h, outlink->format,
SWS_BICUBIC, NULL, NULL, NULL);
return AVERROR(ENOMEM);
}
sr_context->sws_slice_h = inlink->h;
- break;
- case ESPCN:
+ }
+ else{
if (inlink->format != AV_PIX_FMT_GRAY8){
sws_src_h = sr_context->input.height;
sws_src_w = sr_context->input.width;
av_frame_copy_props(out, in);
out->height = sr_context->output.height;
out->width = sr_context->output.width;
- switch (sr_context->model_type){
- case SRCNN:
+ if (sr_context->scale_factor){
sws_scale(sr_context->sws_contexts[0], (const uint8_t **)in->data, in->linesize,
0, sr_context->sws_slice_h, out->data, out->linesize);
sws_scale(sr_context->sws_contexts[1], (const uint8_t **)out->data, out->linesize,
- 0, out->height, (uint8_t * const*)(&sr_context->input.data), &sr_context->sws_input_linesize);
- break;
- case ESPCN:
+ 0, out->height, (uint8_t * const*)(&sr_context->input.data),
+ (const int [4]){sr_context->sws_input_linesize, 0, 0, 0});
+ }
+ else{
if (sr_context->sws_contexts[0]){
sws_scale(sr_context->sws_contexts[0], (const uint8_t **)(in->data + 1), in->linesize + 1,
0, sr_context->sws_slice_h, out->data + 1, out->linesize + 1);
}
sws_scale(sr_context->sws_contexts[1], (const uint8_t **)in->data, in->linesize,
- 0, in->height, (uint8_t * const*)(&sr_context->input.data), &sr_context->sws_input_linesize);
+ 0, in->height, (uint8_t * const*)(&sr_context->input.data),
+ (const int [4]){sr_context->sws_input_linesize, 0, 0, 0});
}
av_frame_free(&in);
return AVERROR(EIO);
}
- sws_scale(sr_context->sws_contexts[2], (const uint8_t **)(&sr_context->output.data), &sr_context->sws_output_linesize,
+ sws_scale(sr_context->sws_contexts[2], (const uint8_t *[4]){(const uint8_t *)sr_context->output.data, 0, 0, 0},
+ (const int[4]){sr_context->sws_output_linesize, 0, 0, 0},
0, out->height, (uint8_t * const*)out->data, out->linesize);
return ff_filter_frame(outlink, out);