#include "formats.h"
#include "internal.h"
#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
#include "libavformat/avio.h"
#include "libswscale/swscale.h"
-#include "dnn_interface.h"
+#include "dnn_filter_common.h"
typedef struct SRContext {
const AVClass *class;
-
- char *model_filename;
- DNNBackendType backend_type;
- DNNModule *dnn_module;
- DNNModel *model;
- DNNData input, output;
+ DnnContext dnnctx;
int scale_factor;
- struct SwsContext *sws_contexts[3];
- int sws_slice_h, sws_input_linesize, sws_output_linesize;
+ struct SwsContext *sws_uv_scale;
+ int sws_uv_height;
+ struct SwsContext *sws_pre_scale;
} SRContext;
#define OFFSET(x) offsetof(SRContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
static const AVOption sr_options[] = {
- { "dnn_backend", "DNN backend used for model execution", OFFSET(backend_type), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, 0, 1, FLAGS, "backend" },
+ { "dnn_backend", "DNN backend used for model execution", OFFSET(dnnctx.backend_type), AV_OPT_TYPE_INT, { .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", "path to model file specifying network architecture and its parameters", OFFSET(model_filename), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
+ { "model", "path to model file specifying network architecture and its parameters", OFFSET(dnnctx.model_filename), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
+ { "input", "input name of the model", OFFSET(dnnctx.model_inputname), AV_OPT_TYPE_STRING, { .str = "x" }, 0, 0, FLAGS },
+ { "output", "output name of the model", OFFSET(dnnctx.model_outputname), AV_OPT_TYPE_STRING, { .str = "y" }, 0, 0, FLAGS },
{ NULL }
};
static av_cold int init(AVFilterContext *context)
{
SRContext *sr_context = context->priv;
-
- sr_context->dnn_module = ff_get_dnn_module(sr_context->backend_type);
- if (!sr_context->dnn_module){
- av_log(context, AV_LOG_ERROR, "could not create DNN module for requested backend\n");
- return AVERROR(ENOMEM);
- }
- if (!sr_context->model_filename){
- av_log(context, AV_LOG_ERROR, "model file for network was not specified\n");
- return AVERROR(EIO);
- }
- else{
- 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");
- return AVERROR(EIO);
- }
-
- sr_context->sws_contexts[0] = NULL;
- sr_context->sws_contexts[1] = NULL;
- sr_context->sws_contexts[2] = NULL;
-
- return 0;
+ return ff_dnn_init(&sr_context->dnnctx, DFT_PROCESS_FRAME, context);
}
static int query_formats(AVFilterContext *context)
return ff_set_common_formats(context, formats_list);
}
-static int config_props(AVFilterLink *inlink)
+static int config_output(AVFilterLink *outlink)
{
- AVFilterContext *context = inlink->dst;
- SRContext *sr_context = context->priv;
- AVFilterLink *outlink = context->outputs[0];
+ AVFilterContext *context = outlink->src;
+ SRContext *ctx = context->priv;
DNNReturnType result;
- int sws_src_h, sws_src_w, sws_dst_h, sws_dst_w;
+ AVFilterLink *inlink = context->inputs[0];
+ int out_width, out_height;
- 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);
- if (result != DNN_SUCCESS){
- av_log(context, AV_LOG_ERROR, "could not set input and output for the model\n");
+ // have a try run in case that the dnn model resize the frame
+ result = ff_dnn_get_output(&ctx->dnnctx, inlink->w, inlink->h, &out_width, &out_height);
+ if (result != DNN_SUCCESS) {
+ av_log(ctx, AV_LOG_ERROR, "could not get output from the model\n");
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,
- sr_context->input.width, sr_context->input.height, AV_PIX_FMT_GRAYF32,
- 0, NULL, NULL, NULL);
- sr_context->sws_input_linesize = sr_context->input.width << 2;
- sr_context->sws_contexts[2] = sws_getContext(sr_context->output.width, sr_context->output.height, AV_PIX_FMT_GRAYF32,
- sr_context->output.width, sr_context->output.height, AV_PIX_FMT_GRAY8,
- 0, NULL, NULL, NULL);
- sr_context->sws_output_linesize = sr_context->output.width << 2;
- if (!sr_context->sws_contexts[1] || !sr_context->sws_contexts[2]){
- av_log(context, AV_LOG_ERROR, "could not create SwsContext for conversions\n");
- return AVERROR(ENOMEM);
- }
- 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);
- if (!sr_context->sws_contexts[0]){
- av_log(context, AV_LOG_ERROR, "could not create SwsContext for scaling\n");
- return AVERROR(ENOMEM);
- }
- sr_context->sws_slice_h = inlink->h;
- }
- else{
- if (inlink->format != AV_PIX_FMT_GRAY8){
- sws_src_h = sr_context->input.height;
- sws_src_w = sr_context->input.width;
- sws_dst_h = sr_context->output.height;
- sws_dst_w = sr_context->output.width;
- switch (inlink->format){
- case AV_PIX_FMT_YUV420P:
- sws_src_h = AV_CEIL_RSHIFT(sws_src_h, 1);
- sws_src_w = AV_CEIL_RSHIFT(sws_src_w, 1);
- sws_dst_h = AV_CEIL_RSHIFT(sws_dst_h, 1);
- sws_dst_w = AV_CEIL_RSHIFT(sws_dst_w, 1);
- break;
- case AV_PIX_FMT_YUV422P:
- sws_src_w = AV_CEIL_RSHIFT(sws_src_w, 1);
- sws_dst_w = AV_CEIL_RSHIFT(sws_dst_w, 1);
- break;
- case AV_PIX_FMT_YUV444P:
- break;
- case AV_PIX_FMT_YUV410P:
- sws_src_h = AV_CEIL_RSHIFT(sws_src_h, 2);
- sws_src_w = AV_CEIL_RSHIFT(sws_src_w, 2);
- sws_dst_h = AV_CEIL_RSHIFT(sws_dst_h, 2);
- sws_dst_w = AV_CEIL_RSHIFT(sws_dst_w, 2);
- break;
- case AV_PIX_FMT_YUV411P:
- sws_src_w = AV_CEIL_RSHIFT(sws_src_w, 2);
- sws_dst_w = AV_CEIL_RSHIFT(sws_dst_w, 2);
- break;
- default:
- av_log(context, AV_LOG_ERROR, "could not create SwsContext for scaling for given input pixel format");
- return AVERROR(EIO);
- }
- sr_context->sws_contexts[0] = sws_getContext(sws_src_w, sws_src_h, AV_PIX_FMT_GRAY8,
- sws_dst_w, sws_dst_h, AV_PIX_FMT_GRAY8,
- SWS_BICUBIC, NULL, NULL, NULL);
- if (!sr_context->sws_contexts[0]){
- av_log(context, AV_LOG_ERROR, "could not create SwsContext for scaling\n");
- return AVERROR(ENOMEM);
- }
- sr_context->sws_slice_h = sws_src_h;
- }
+ if (inlink->w != out_width || inlink->h != out_height) {
+ //espcn
+ outlink->w = out_width;
+ outlink->h = out_height;
+ if (inlink->format != AV_PIX_FMT_GRAY8){
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
+ int sws_src_h = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
+ int sws_src_w = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
+ int sws_dst_h = AV_CEIL_RSHIFT(outlink->h, desc->log2_chroma_h);
+ int sws_dst_w = AV_CEIL_RSHIFT(outlink->w, desc->log2_chroma_w);
+ ctx->sws_uv_scale = sws_getContext(sws_src_w, sws_src_h, AV_PIX_FMT_GRAY8,
+ sws_dst_w, sws_dst_h, AV_PIX_FMT_GRAY8,
+ SWS_BICUBIC, NULL, NULL, NULL);
+ ctx->sws_uv_height = sws_src_h;
}
-
- return 0;
+ } else {
+ //srcnn
+ outlink->w = out_width * ctx->scale_factor;
+ outlink->h = out_height * ctx->scale_factor;
+ ctx->sws_pre_scale = sws_getContext(inlink->w, inlink->h, inlink->format,
+ outlink->w, outlink->h, outlink->format,
+ SWS_BICUBIC, NULL, NULL, NULL);
}
+
+ return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *context = inlink->dst;
- SRContext *sr_context = context->priv;
+ SRContext *ctx = context->priv;
AVFilterLink *outlink = context->outputs[0];
AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
DNNReturnType dnn_result;
return AVERROR(ENOMEM);
}
av_frame_copy_props(out, in);
- out->height = sr_context->output.height;
- out->width = sr_context->output.width;
- 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),
- (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[0], (const uint8_t **)(in->data + 2), in->linesize + 2,
- 0, sr_context->sws_slice_h, out->data + 2, out->linesize + 2);
- }
- sws_scale(sr_context->sws_contexts[1], (const uint8_t **)in->data, in->linesize,
- 0, in->height, (uint8_t * const*)(&sr_context->input.data),
- (const int [4]){sr_context->sws_input_linesize, 0, 0, 0});
+ if (ctx->sws_pre_scale) {
+ sws_scale(ctx->sws_pre_scale,
+ (const uint8_t **)in->data, in->linesize, 0, in->height,
+ out->data, out->linesize);
+ dnn_result = ff_dnn_execute_model(&ctx->dnnctx, out, out);
+ } else {
+ dnn_result = ff_dnn_execute_model(&ctx->dnnctx, in, out);
}
- av_frame_free(&in);
- dnn_result = (sr_context->dnn_module->execute_model)(sr_context->model);
if (dnn_result != DNN_SUCCESS){
- av_log(context, AV_LOG_ERROR, "failed to execute loaded model\n");
+ av_log(ctx, AV_LOG_ERROR, "failed to execute loaded model\n");
+ av_frame_free(&in);
+ av_frame_free(&out);
return AVERROR(EIO);
}
- 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);
+ if (ctx->sws_uv_scale) {
+ sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 1), in->linesize + 1,
+ 0, ctx->sws_uv_height, out->data + 1, out->linesize + 1);
+ sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 2), in->linesize + 2,
+ 0, ctx->sws_uv_height, out->data + 2, out->linesize + 2);
+ }
+ av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
static av_cold void uninit(AVFilterContext *context)
{
- int i;
SRContext *sr_context = context->priv;
- if (sr_context->dnn_module){
- (sr_context->dnn_module->free_model)(&sr_context->model);
- av_freep(&sr_context->dnn_module);
- }
-
- for (i = 0; i < 3; ++i){
- if (sr_context->sws_contexts[i]){
- sws_freeContext(sr_context->sws_contexts[i]);
- }
- }
+ ff_dnn_uninit(&sr_context->dnnctx);
+ sws_freeContext(sr_context->sws_uv_scale);
+ sws_freeContext(sr_context->sws_pre_scale);
}
static const AVFilterPad sr_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
- .config_props = config_props,
.filter_frame = filter_frame,
},
{ NULL }
static const AVFilterPad sr_outputs[] = {
{
.name = "default",
+ .config_props = config_output,
.type = AVMEDIA_TYPE_VIDEO,
},
{ NULL }
};
-AVFilter ff_vf_sr = {
+const AVFilter ff_vf_sr = {
.name = "sr",
.description = NULL_IF_CONFIG_SMALL("Apply DNN-based image super resolution to the input."),
.priv_size = sizeof(SRContext),
.inputs = sr_inputs,
.outputs = sr_outputs,
.priv_class = &sr_class,
- .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
};
-
projects / ffmpeg / blobdiff