/*
 * Copyright (c) 2016-present The ZLMediaKit project authors. All Rights Reserved.
 *
 * This file is part of ZLMediaKit(https://github.com/ZLMediaKit/ZLMediaKit).
 *
 * Use of this source code is governed by MIT-like license that can be found in the
 * LICENSE file in the root of the source tree. All contributing project authors
 * may be found in the AUTHORS file in the root of the source tree.
 */

#include <signal.h>
#include "Util/logger.h"
#include "Util/util.h"
#include <iostream>
#include "Common/config.h"
#include "Rtsp/UDPServer.h"
#include "Player/MediaPlayer.h"
#include "Util/onceToken.h"
#include "Codec/Transcode.h"
#include "YuvDisplayer.h"
#include "AudioSRC.h"
using namespace std;
using namespace toolkit;
using namespace mediakit;

#ifdef WIN32
#include <TCHAR.h>

extern int __argc;
extern TCHAR** __targv;

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstanc, LPSTR lpCmdLine, int nShowCmd) {
    int argc = __argc;
    char **argv = __targv;

    //1. 首先调用AllocConsole创建一个控制台窗口
    AllocConsole();

    //2. 但此时调用cout或者printf都不能正常输出文字到窗口（包括输入流cin和scanf）, 所以需要如下重定向输入输出流：
    FILE* stream;
    freopen_s(&stream, "CON", "r", stdin);//重定向输入流
    freopen_s(&stream, "CON", "w", stdout);//重定向输入流

    //3. 如果我们需要用到控制台窗口句柄，可以调用FindWindow取得：
    HWND _consoleHwnd;
    SetConsoleTitleA("test_player");//设置窗口名
#else
#include <unistd.h>
int main(int argc, char *argv[]) {
#endif
    static char *url = argv[1];
    {
        // 设置退出信号处理函数
        signal(SIGINT, [](int) { SDLDisplayerHelper::Instance().shutdown(); });
        // 设置日志
        Logger::Instance().add(std::make_shared<ConsoleChannel>());
        Logger::Instance().setWriter(std::make_shared<AsyncLogWriter>());

        if (argc < 3) {
            ErrorL << "\r\n测试方法：./test_player rtxp_url rtp_type\r\n"
                   << "例如：./test_player rtsp://admin:123456@127.0.0.1/live/0 0\r\n";
            return 0;
        }

        auto player = std::make_shared<MediaPlayer>();
        // sdl要求在main线程初始化
        auto displayer = std::make_shared<YuvDisplayer>(nullptr, url);
        weak_ptr<MediaPlayer> weakPlayer = player;
        player->setOnPlayResult([weakPlayer, displayer](const SockException &ex) {
            InfoL << "OnPlayResult:" << ex.what();
            auto strongPlayer = weakPlayer.lock();
            if (ex || !strongPlayer) {
                return;
            }

            auto videoTrack = dynamic_pointer_cast<VideoTrack>(strongPlayer->getTrack(TrackVideo, false));
            auto audioTrack = dynamic_pointer_cast<AudioTrack>(strongPlayer->getTrack(TrackAudio, false));

            if (videoTrack) {
                auto decoder = std::make_shared<FFmpegDecoder>(videoTrack);
                decoder->setOnDecode([displayer](const FFmpegFrame::Ptr &yuv) {
                    SDLDisplayerHelper::Instance().doTask([yuv, displayer]() {
                        // sdl要求在main线程渲染
                        displayer->displayYUV(yuv->get());
                        return true;
                    });
                });
                videoTrack->addDelegate([decoder](const Frame::Ptr &frame) { return decoder->inputFrame(frame, false, true); });
            }

            if (audioTrack) {
                auto decoder = std::make_shared<FFmpegDecoder>(audioTrack);
                auto audio_player = std::make_shared<AudioPlayer>();
                // FFmpeg解码时已经统一转换为16位整型pcm
                audio_player->setup(audioTrack->getAudioSampleRate(), audioTrack->getAudioChannel(), AUDIO_S16);
                FFmpegSwr::Ptr swr;

                decoder->setOnDecode([audio_player, swr](const FFmpegFrame::Ptr &frame) mutable {
                    int chs = 0;
                    if (!swr) {
# if LIBAVCODEC_VERSION_INT >= FF_CODEC_VER_7_1
                        swr = std::make_shared<FFmpegSwr>(AV_SAMPLE_FMT_S16, &(frame->get()->ch_layout), frame->get()->sample_rate);
                        chs = (&frame->get()->ch_layout)->nb_channels;
#else
                        swr = std::make_shared<FFmpegSwr>(AV_SAMPLE_FMT_S16, frame->get()->channels, frame->get()->channel_layout, frame->get()->sample_rate);
                        chs = frame->get()->channels;
#endif
                    }
                    auto pcm = swr->inputFrame(frame);
                    auto len = pcm->get()->nb_samples * chs * av_get_bytes_per_sample((enum AVSampleFormat)pcm->get()->format);
                    audio_player->playPCM((const char *)(pcm->get()->data[0]), MIN(len, frame->get()->linesize[0]));
                });
                audioTrack->addDelegate([decoder](const Frame::Ptr &frame) { return decoder->inputFrame(frame, false, true); });
            }
        });

        player->setOnShutdown([](const SockException &ex) { WarnL << "play shutdown: " << ex.what(); });

        (*player)[Client::kRtpType] = atoi(argv[2]);
        // 不等待track ready再回调播放成功事件，这样可以加快秒开速度
        (*player)[Client::kWaitTrackReady] = false;
        if (argc > 3) {
            (*player)[Client::kPlayTrack] = atoi(argv[3]);
        }
        player->play(argv[1]);
        SDLDisplayerHelper::Instance().runLoop();
    }
    sleep(1);
    return 0;
}