/*
 *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "api/video_codecs/builtin_video_encoder_factory.h"

#include <memory>
#include <vector>

#include "absl/strings/match.h"
#include "api/video_codecs/sdp_video_format.h"
#include "api/video_codecs/video_encoder.h"
#include "media/base/codec.h"
#include "media/base/media_constants.h"
#include "media/engine/encoder_simulcast_proxy.h"
#include "media/engine/internal_encoder_factory.h"
#include "rtc_base/checks.h"

#include "sri_build_encoder_factory.h"
#include "absl/memory/memory.h"
#include "media/engine/internal_decoder_factory.h"
#include "rtc_base/logging.h"
#include "modules/video_coding/codecs/h264/include/h264.h"
#include "modules/video_coding/codecs/vp8/include/vp8.h"
#include "modules/video_coding/codecs/vp9/include/vp9.h"
#include "api/video_codecs/video_encoder_factory.h"
#include "rtc_base/checks.h"
#include "jetson_nv_encoder.h"


namespace webrtc {

class ExternalEncoderFactory : public webrtc::VideoEncoderFactory {
public:
	std::vector<webrtc::SdpVideoFormat> GetSupportedFormats()
		const override {
		std::vector<webrtc::SdpVideoFormat> video_formats;
		for (const webrtc::SdpVideoFormat& h264_format : webrtc::SupportedH264Codecs())
			video_formats.push_back(h264_format);
		return video_formats;
	}

	ExternalEncoderFactory::CodecInfo QueryVideoEncoder(
		const webrtc::SdpVideoFormat& format) const override {
		CodecInfo codec_info = { false };
		// codec_info.is_hardware_accelerated = true;
		codec_info.has_internal_source = false;
		return codec_info;
	}

	std::unique_ptr<webrtc::VideoEncoder> CreateVideoEncoder(
		const webrtc::SdpVideoFormat& format) override {
		if (absl::EqualsIgnoreCase(format.name, cricket::kH264CodecName)) {
			if (webrtc::H264Encoder::IsSupported()) {
				printf("进入h264 encode \n");
				// if (xop::NvidiaD3D11Encoder::IsSupported()) {
					// return absl::make_unique<webrtc::NvEncoder>(cricket::VideoCodec(format));
					return absl::make_unique<webrtc::H264EncoderImpl_>(cricket::VideoCodec(format));
					
				// }
				// else if (xop::IntelD3DEncoder::IsSupported()) {
				// 	return absl::make_unique<webrtc::QsvEncoder>(cricket::VideoCodec(format));
				// }
				// else {
				// 	return webrtc::H264Encoder::Create(cricket::VideoCodec(format));
				// }
			}			
		}

		return nullptr;
	}
};

std::unique_ptr<webrtc::VideoEncoderFactory> CreateExternalVideoEncoderFactory() {
	return std::make_unique<ExternalEncoderFactory>();
}

}