#include "sws.hpp"

extern "C" {
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
}

//auto sws_context = sws_getContext(input->width, input->height, av::get_format(input), frame_part->width, frame_part->height, av::get_format(frame_part), 0, nullptr, nullptr, nullptr);
//if(!sws_context) throw std::runtime_error("boem sws context");
//sws_scale (sws_context, {input->data}, {input->linesize}, 0, input->height, {frame_part->data}, {frame_part->linesize});
//sws_freeContext(sws_context);

namespace sws {

	context create_context(av::frame const & src, av::frame const & dest, int flags, SwsFilter * src_filter, SwsFilter * dest_filter, double * params){
		auto ptr = sws_getContext(src->width, src->height, av::get_format(src), dest->width, dest->height, av::get_format(dest), flags, src_filter, dest_filter, params);
		if(!ptr) throw error("boem getContext");
		return {ptr, &sws_freeContext};
	}

	void scale(context & c, av::frame const & src, av::frame & dest){
		auto ret = sws_scale(c.get(), {src->data}, {src->linesize}, 0, src->height, {dest->data}, {dest->linesize});
		if(ret < 0) throw error("boem scale");
	}

}