/***************************************************************************************
 *
 *  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
 *
 *  By downloading, copying, installing or using the software you agree to this license.
 *  If you do not agree to this license, do not download, install, 
 *  copy or use the software.
 *
 *  Copyright (C) 2014-2024, Happytimesoft Corporation, all rights reserved.
 *
 *  Redistribution and use in binary forms, with or without modification, are permitted.
 *
 *  Unless required by applicable law or agreed to in writing, software distributed 
 *  under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 *  CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
 *  language governing permissions and limitations under the License.
 *
****************************************************************************************/

#include "rtmp_player.h"
#include "utils.h"

/***************************************************************************************/

int rtmp_notify_callback(int evt, void * puser)
{
    CRtmpPlayer * pPlayer = (CRtmpPlayer *) puser;
    
    pPlayer->onNotify(evt);
    return 0;
}

int rtmp_audio_callback(uint8 * pdata, int len, uint32 ts, void *puser)
{
    CRtmpPlayer * pPlayer = (CRtmpPlayer *) puser;

    pPlayer->onAudio(pdata, len, ts);
    return 0;
}

int rtmp_video_callback(uint8 * pdata, int len, uint32 ts, void *puser)
{
    CRtmpPlayer * pPlayer = (CRtmpPlayer *) puser;

    pPlayer->onVideo(pdata, len, ts);
    return 0;
}

/***************************************************************************************/

CRtmpPlayer::CRtmpPlayer(QObject * parent)
: CVideoPlayer(parent)
{
    memset(m_ip, 0, sizeof(m_ip));
}

CRtmpPlayer::~CRtmpPlayer()
{
    close();
}

BOOL CRtmpPlayer::open(QString fileName, WId hWnd)
{
    close();

    CVideoPlayer::open(fileName, hWnd);

    char host[100];

    url_split(fileName.toStdString().c_str(), NULL, 0, NULL, 0, NULL, 0, host, sizeof(host), NULL, NULL, 0);

    if (host[0] == '\0')
    {
        return FALSE;
    }

	strncpy(m_ip, host, sizeof(m_ip) - 1);

	m_rtmp.set_notify_cb(rtmp_notify_callback, this);
    m_rtmp.set_audio_cb(rtmp_audio_callback);
    m_rtmp.set_video_cb(rtmp_video_callback);

	return TRUE;
}

void CRtmpPlayer::close()
{
	// stop rtmp connection
	m_rtmp.rtmp_stop();
	m_rtmp.rtmp_close();

    m_bPlaying = FALSE;
    m_bPaused = FALSE;

    CVideoPlayer::close();
}

BOOL CRtmpPlayer::play()
{
	if (m_rtmp.rtmp_start(m_sFileName.toStdString().c_str(), m_acct.toStdString().c_str(), m_pass.toStdString().c_str()))
    {
        m_bPlaying = TRUE;
    }

    return m_bPlaying;
}

void CRtmpPlayer::stop()
{
    if (m_bPlaying || m_bPaused)
    {
        m_rtmp.rtmp_stop();
    }

    m_bPlaying = FALSE;
    m_bPaused = FALSE;
}

BOOL CRtmpPlayer::pause()
{
    if (m_bPlaying)
    {
        if (m_rtmp.rtmp_pause())
        {
            m_bPaused = TRUE;
            m_bPlaying = FALSE;
        }
    }
    else if (m_bPaused)
    {
        if (m_rtmp.rtmp_play())
        {
            m_bPaused = FALSE;
            m_bPlaying = TRUE;
        }
    }

    return m_bPaused;
}

BOOL CRtmpPlayer::seek(int pos)
{
    return FALSE;
}

int64 CRtmpPlayer::getElapse()
{
    uint32 cur_ts;
    uint32 init_ts;
    int frequency;
    
    if (m_videoClock.SyncTime.tv_sec > m_audioClock.SyncTime.tv_sec)
    {
        cur_ts = m_videoClock.SyncTimestamp;
        init_ts = m_rtmp.get_video_init_ts();
        frequency = getVideoClock();
    }
    else if (m_videoClock.SyncTime.tv_sec == m_audioClock.SyncTime.tv_sec && 
        m_videoClock.SyncTime.tv_usec > m_audioClock.SyncTime.tv_usec)
    {
        cur_ts = m_videoClock.SyncTimestamp;
        init_ts = m_rtmp.get_video_init_ts();
        frequency = getVideoClock();
    }
    else 
    {
        cur_ts = m_audioClock.SyncTimestamp;
        init_ts = m_rtmp.get_audio_init_ts();
        frequency = getAudioClock();
    }
    
    if (init_ts == 0)
    {
        return 0;
    }

    int64 elapse;
    int timestampDiff = cur_ts - init_ts;

    // Divide this by the timestamp frequency to get real time:
    double timeDiff = timestampDiff / (double)frequency;

    if (timeDiff >= 0.0) 
    {
        elapse = timeDiff * 1000;
    } 
    else 
    {
        timeDiff = -timeDiff;
        elapse = timeDiff * 1000;
    }
    
    return elapse;
}

int64 CRtmpPlayer::getDuration()
{
    return 0;
}

int CRtmpPlayer::getVideoCodec()
{
    return m_rtmp.video_codec();
}

int CRtmpPlayer::getAudioCodec()
{
    return m_rtmp.audio_codec();
}

void CRtmpPlayer::onNotify(int evt)
{
	if (evt == RTMP_EVE_VIDEOREADY)
	{
		int videoCodec = m_rtmp.video_codec();

        if (VIDEO_CODEC_NONE != videoCodec)
		{
		    BOOL  ret;
		    uint8 extradata[1024];
		    int   extradata_size = 0;

		    if (VIDEO_CODEC_H264 == videoCodec)
		    {
		        ret = m_rtmp.get_h264_params(m_h26XParamSets.sps, &m_h26XParamSets.sps_size, 
		                                     m_h26XParamSets.pps, &m_h26XParamSets.pps_size);
		        if (ret)
		        {
		            memcpy(extradata, m_h26XParamSets.sps, m_h26XParamSets.sps_size);
		            extradata_size += m_h26XParamSets.sps_size;
                    memcpy(extradata+extradata_size, m_h26XParamSets.pps, m_h26XParamSets.pps_size);
                    extradata_size += m_h26XParamSets.pps_size;

                    // init video decoder
			        openVideo(videoCodec, extradata, extradata_size);
		        }
		    }
		    else if (VIDEO_CODEC_H265 == videoCodec)
		    {
		        ret = m_rtmp.get_h265_params(m_h26XParamSets.sps, &m_h26XParamSets.sps_size, 
		                                     m_h26XParamSets.pps, &m_h26XParamSets.pps_size, 
		                                     m_h26XParamSets.vps, &m_h26XParamSets.vps_size);
		        if (ret)
		        {
		            memcpy(extradata, m_h26XParamSets.vps, m_h26XParamSets.vps_size);
                    extradata_size += m_h26XParamSets.vps_size;
		            memcpy(extradata+extradata_size, m_h26XParamSets.sps, m_h26XParamSets.sps_size);
		            extradata_size += m_h26XParamSets.sps_size;
                    memcpy(extradata+extradata_size, m_h26XParamSets.pps, m_h26XParamSets.pps_size);
                    extradata_size += m_h26XParamSets.pps_size;

                    // init video decoder
			        openVideo(videoCodec, extradata, extradata_size);
		        }
		    }
		    else
		    {
		        openVideo(videoCodec);
		    }
		}
	}
	else if (evt == RTMP_EVE_AUDIOREADY)
	{
		int audioCodec = m_rtmp.audio_codec();

		if (AUDIO_CODEC_NONE != audioCodec)
		{
			openAudio(audioCodec, m_rtmp.get_audio_samplerate(), m_rtmp.get_audio_channels());
		}
	}

	emit notify(evt);
}

void CRtmpPlayer::onAudio(uint8 * pdata, int len, uint32 ts)
{
    playAudio(pdata, len, ts, 0);
}

void CRtmpPlayer::onVideo(uint8 * pdata, int len, uint32 ts)
{
    playVideo(pdata, len, ts, 0);
}

BOOL CRtmpPlayer::onRecord()
{
    CRtmpClient * p_rtmp = &m_rtmp;
    AVICTX * p_avictx = m_pAviCtx;
    
    int vcodec = p_rtmp->video_codec();	
    int fps = p_rtmp->get_video_framerate();
    int v_extra_len = 0;
    uint8 v_extra[1024];
    
    if (VIDEO_CODEC_H264 == vcodec)
    {
        avi_set_video_info(p_avictx, fps, 0, 0, "H264");

        uint8 sps[512], pps[512];
		int sps_len = 0, pps_len = 0;
        
        if (p_rtmp->get_h264_params(sps, &sps_len, pps, &pps_len))
        {
            memcpy(v_extra, sps, sps_len);
            memcpy(v_extra + sps_len, pps, pps_len);

            v_extra_len = sps_len + pps_len;
        }

        if (v_extra_len > 0)
        {
			avi_set_video_extra_info(p_avictx, v_extra, v_extra_len);
        }
    }
    else if (VIDEO_CODEC_H265 == vcodec)
    {
        avi_set_video_info(p_avictx, fps, 0, 0, "H265");

        uint8 vps[512], sps[512], pps[512];
        int vps_len = 0, sps_len = 0, pps_len = 0;
            
        if (p_rtmp->get_h265_params(sps, &sps_len, pps, &pps_len, vps, &vps_len))
        {
            memcpy(v_extra, vps, vps_len);
            memcpy(v_extra + vps_len, sps, sps_len);
            memcpy(v_extra + vps_len + sps_len, pps, pps_len);

            v_extra_len = vps_len + sps_len + pps_len;
        }

        if (v_extra_len > 0)
        {
			avi_set_video_extra_info(p_avictx, v_extra, v_extra_len);
        }
    }
    else if (VIDEO_CODEC_JPEG == vcodec)
    {
        avi_set_video_info(p_avictx, fps, 0, 0, "JPEG");
    }
    else if (VIDEO_CODEC_MP4 == vcodec)
    {
        avi_set_video_info(p_avictx, fps, 0, 0, "MP4V");
    }

    int acodec = p_rtmp->audio_codec();
    int sr = p_rtmp->get_audio_samplerate();
    int ch = p_rtmp->get_audio_channels();
	    
    if (AUDIO_CODEC_G711A == acodec)
    {
        avi_set_audio_info(p_avictx, ch, sr, AUDIO_FORMAT_ALAW);
    }
    else if (AUDIO_CODEC_G711U == acodec)
    {
        avi_set_audio_info(p_avictx, ch, sr, AUDIO_FORMAT_MULAW);
    }
    else if (AUDIO_CODEC_G726 == acodec)
    {
        avi_set_audio_info(p_avictx, ch, sr, AUDIO_FORMAT_G726);
    }
    else if (AUDIO_CODEC_G722 == acodec)
    {
        avi_set_audio_info(p_avictx, ch, sr, AUDIO_FORMAT_G722);
    }
    else if (AUDIO_CODEC_AAC == acodec)
    {
        avi_set_audio_info(p_avictx, ch, sr, AUDIO_FORMAT_AAC);
        avi_set_audio_extra_info(p_avictx, p_rtmp->get_audio_config(), p_rtmp->get_audio_config_len());
    }

    avi_update_header(p_avictx);

    if (p_avictx->ctxf_video)
    {
        if (v_extra_len > 0)
        {
            recordVideo(v_extra, v_extra_len, 0, 0);
        }
    }
    
	return TRUE;
}

void CRtmpPlayer::onRecordFileSwitch()
{
    AVICTX * p_ctx;
    AVICTX * p_oldctx = m_pAviCtx;

    QString path = getRecordPath();
	QString file = path + "/" + getTempFile(m_ip, ".avi");
    
    p_ctx = avi_write_open(file.toLocal8Bit().toStdString().c_str());
    if (NULL == p_ctx)
    {
        return;
    }
 
    p_ctx->ctxf_video = p_oldctx->ctxf_video;
    p_ctx->ctxf_audio = p_oldctx->ctxf_audio;
 
    if (p_ctx->ctxf_video)
    {
        avi_calc_fps(p_oldctx);
        avi_set_video_info(p_ctx, p_oldctx->v_fps, p_oldctx->v_width, p_oldctx->v_height, p_oldctx->v_fcc);
        avi_set_video_extra_info(p_ctx, p_oldctx->v_extra, p_oldctx->v_extra_len);
    }
 
    if (p_ctx->ctxf_audio)
    {
        avi_set_audio_info(p_ctx, p_oldctx->a_chns, p_oldctx->a_rate, p_oldctx->a_fmt);
        avi_set_audio_extra_info(p_ctx, p_oldctx->a_extra, p_oldctx->a_extra_len);
    }
    
    avi_write_close(p_oldctx);
 
    avi_update_header(p_ctx);

    m_pAviCtx = p_ctx;
    
    if (m_h26XParamSets.vps_size > 0 || 
        m_h26XParamSets.sps_size > 0 || 
        m_h26XParamSets.pps_size > 0)
    {
        avi_write_nalu(m_pAviCtx, 
            m_h26XParamSets.vps, m_h26XParamSets.vps_size, 
            m_h26XParamSets.sps, m_h26XParamSets.sps_size,
            m_h26XParamSets.pps, m_h26XParamSets.pps_size);
    }
}