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• ffmpeg record video plays too fast

  29 avril 2023, par Kris Xia

  I'm a college student and I am studying FFmpeg now.

  



  I have wrote a software that can record desktops and audio('virtual-audio-capturer') with FFmpeg.And I am now writing Audio and Video Synchronization.
I met some problems that video recording plays too fast.

  



  When I look for audio and video synchronization help on the Internet，I find a formula for calculating PTS ：

  



  pts = n * (（1 / timbase）/ fps)

  



  When I use this formula,I find a phenomenon.

  



  1.The higher frame rate is,the faster the video playback speed.

  



  2.The slower the frame rate, the faster the video playback.

  



  Also I find while the framerate is 10，the video playback speed will be right.

  



  Why has this situation happened ?

  



  I have thought this question for three days. I really hope someone can help me solve this problem.

  



  I really appreciate the help.

  



  #include "stdafx.h"

#ifdef  __cplusplus
extern "C"
{
#endif
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libswscale/swscale.h"
#include "libavdevice/avdevice.h"
#include "libavutil/audio_fifo.h"

#include "libavfilter/buffersink.h"
#include "libavfilter/buffersrc.h"
#include "libavutil/imgutils.h"
#include "libavutil/mathematics.h"
#include "libavutil/samplefmt.h"
#include "libavutil/time.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/file.h"
#include "libavutil/mem.h"
#include "libavutil/frame.h"
#include "libavfilter/avfilter.h"
#include "libswresample/swresample.h"

#pragma comment(lib, "avcodec.lib")
#pragma comment(lib, "avformat.lib")
#pragma comment(lib, "avutil.lib")
#pragma comment(lib, "avdevice.lib")
#pragma comment(lib, "avfilter.lib")

#pragma comment(lib, "avfilter.lib")
#pragma comment(lib, "postproc.lib")
#pragma comment(lib, "swresample.lib")
#pragma comment(lib, "swscale.lib")
#ifdef __cplusplus
};
#endif

AVFormatContext *pFormatCtx_Video = NULL, *pFormatCtx_Audio = NULL, *pFormatCtx_Out = NULL;

AVCodecContext *outVideoCodecCtx = NULL;
AVCodecContext *outAudioCodecCtx = NULL;

AVStream *pVideoStream = NULL, *pAudioStream = NULL;

AVCodec *outAVCodec;
AVCodec *outAudioCodec;

AVCodecContext  *pCodecCtx_Video;
AVCodec         *pCodec_Video;
AVFifoBuffer    *fifo_video = NULL;
AVAudioFifo     *fifo_audio = NULL;
int VideoIndex, AudioIndex;
int codec_id;

CRITICAL_SECTION AudioSection, VideoSection;



SwsContext *img_convert_ctx;
int frame_size = 0;

uint8_t *picture_buf = NULL, *frame_buf = NULL;

bool bCap = true;

DWORD WINAPI ScreenCapThreadProc( LPVOID lpParam );
DWORD WINAPI AudioCapThreadProc( LPVOID lpParam );

int OpenVideoCapture()
{
    AVInputFormat *ifmt=av_find_input_format("gdigrab");
    AVDictionary *options = NULL;
    av_dict_set(&options, "framerate", "60", NULL);
    if(avformat_open_input(&pFormatCtx_Video, "desktop", ifmt, &options)!=0)
    {
        printf("Couldn't open input stream.（无法打开视频输入流）\n");
        return -1;
    }
    if(avformat_find_stream_info(pFormatCtx_Video,NULL)<0)
    {
        printf("Couldn't find stream information.（无法获取视频流信息）\n");
        return -1;
    }
    if (pFormatCtx_Video->streams[0]->codec->codec_type != AVMEDIA_TYPE_VIDEO)
    {
        printf("Couldn't find video stream information.（无法获取视频流信息）\n");
        return -1;
    }
    pCodecCtx_Video = pFormatCtx_Video->streams[0]->codec;
    pCodec_Video = avcodec_find_decoder(pCodecCtx_Video->codec_id);
    if(pCodec_Video == NULL)
    {
        printf("Codec not found.（没有找到解码器）\n");
        return -1;
    }
    if(avcodec_open2(pCodecCtx_Video, pCodec_Video, NULL) < 0)
    {
        printf("Could not open codec.（无法打开解码器）\n");
        return -1;
    }

    av_dump_format(pFormatCtx_Video, 0, NULL, 0);

    img_convert_ctx = sws_getContext(pCodecCtx_Video->width, pCodecCtx_Video->height, pCodecCtx_Video->pix_fmt, 
        pCodecCtx_Video->width, pCodecCtx_Video->height, PIX_FMT_YUV420P, SWS_BICUBIC, NULL, NULL, NULL); 

    frame_size = avpicture_get_size(pCodecCtx_Video->pix_fmt, pCodecCtx_Video->width, pCodecCtx_Video->height);
    fifo_video = av_fifo_alloc(30 * avpicture_get_size(AV_PIX_FMT_YUV420P, pCodecCtx_Video->width, pCodecCtx_Video->height));

    return 0;
}

static char *dup_wchar_to_utf8(wchar_t *w)
{
    char *s = NULL;
    int l = WideCharToMultiByte(CP_UTF8, 0, w, -1, 0, 0, 0, 0);
    s = (char *) av_malloc(l);
    if (s)
        WideCharToMultiByte(CP_UTF8, 0, w, -1, s, l, 0, 0);
    return s;
}

int OpenAudioCapture()
{
    AVInputFormat *pAudioInputFmt = av_find_input_format("dshow");
    char * psDevName = dup_wchar_to_utf8(L"audio=virtual-audio-capturer");

    if (avformat_open_input(&pFormatCtx_Audio, psDevName, pAudioInputFmt,NULL) < 0)
    {
        printf("Couldn't open input stream.（无法打开音频输入流）\n");
        return -1;
    }

    if(avformat_find_stream_info(pFormatCtx_Audio,NULL)<0)  
        return -1; 

    if(pFormatCtx_Audio->streams[0]->codec->codec_type != AVMEDIA_TYPE_AUDIO)
    {
        printf("Couldn't find video stream information.（无法获取音频流信息）\n");
        return -1;
    }

    AVCodec *tmpCodec = avcodec_find_decoder(pFormatCtx_Audio->streams[0]->codec->codec_id);
    if(0 > avcodec_open2(pFormatCtx_Audio->streams[0]->codec, tmpCodec, NULL))
    {
        printf("can not find or open audio decoder!\n");
    }

    av_dump_format(pFormatCtx_Audio, 0, NULL, 0);

    return 0;
}

int OpenOutPut()
{
    AVStream *pVideoStream = NULL, *pAudioStream = NULL;
    const char *outFileName = "test.mp4";
    avformat_alloc_output_context2(&pFormatCtx_Out, NULL, NULL, outFileName);

    if (pFormatCtx_Video->streams[0]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
    {
        VideoIndex = 0;
        pVideoStream = avformat_new_stream(pFormatCtx_Out, NULL);
        if (!pVideoStream)
        {
            printf("can not new stream for output!\n");
            return -1;
        }

        outVideoCodecCtx = avcodec_alloc_context3(outAVCodec);
        if ( !outVideoCodecCtx )
        {
            printf("Error : avcodec_alloc_context3()\n");
            return -1;
        }

        //set codec context param
        outVideoCodecCtx = pVideoStream->codec;
        outVideoCodecCtx->codec_id = AV_CODEC_ID_MPEG4;
        outVideoCodecCtx->width = pFormatCtx_Video->streams[0]->codec->width;
        outVideoCodecCtx->height = pFormatCtx_Video->streams[0]->codec->height;
        outVideoCodecCtx->time_base = pFormatCtx_Video->streams[0]->codec->time_base;
        outVideoCodecCtx->pix_fmt = AV_PIX_FMT_YUV420P;
        outVideoCodecCtx->codec_type = AVMEDIA_TYPE_VIDEO;

        if (codec_id == AV_CODEC_ID_H264)
        {
            av_opt_set(outVideoCodecCtx->priv_data, "preset", "slow", 0);
        }

        outAVCodec = avcodec_find_encoder(AV_CODEC_ID_MPEG4);
        if( !outAVCodec )
        {
            printf("\n\nError : avcodec_find_encoder()");
            return -1;
        }
        if (pFormatCtx_Out->oformat->flags & AVFMT_GLOBALHEADER)
            outVideoCodecCtx->flags |=CODEC_FLAG_GLOBAL_HEADER;

        if ((avcodec_open2(outVideoCodecCtx,outAVCodec, NULL)) < 0)
        {
            printf("can not open the encoder\n");
            return -1;
        }
    }

    if(pFormatCtx_Audio->streams[0]->codec->codec_type == AVMEDIA_TYPE_AUDIO)
    {
        AVCodecContext *pOutputCodecCtx;
        AudioIndex = 1;
        pAudioStream = avformat_new_stream(pFormatCtx_Out, NULL);

        pAudioStream->codec->codec = avcodec_find_encoder(pFormatCtx_Out->oformat->audio_codec);

        pOutputCodecCtx = pAudioStream->codec;

        pOutputCodecCtx->sample_rate = pFormatCtx_Audio->streams[0]->codec->sample_rate;
        pOutputCodecCtx->channel_layout = pFormatCtx_Out->streams[0]->codec->channel_layout;
        pOutputCodecCtx->channels = av_get_channel_layout_nb_channels(pAudioStream->codec->channel_layout);
        if(pOutputCodecCtx->channel_layout == 0)
        {
            pOutputCodecCtx->channel_layout = AV_CH_LAYOUT_STEREO;
            pOutputCodecCtx->channels = av_get_channel_layout_nb_channels(pOutputCodecCtx->channel_layout);

        }
        pOutputCodecCtx->sample_fmt = pAudioStream->codec->codec->sample_fmts[0];
        AVRational time_base={1, pAudioStream->codec->sample_rate};
        pAudioStream->time_base = time_base;
        //audioCodecCtx->time_base = time_base;

        pOutputCodecCtx->codec_tag = 0;  
        if (pFormatCtx_Out->oformat->flags & AVFMT_GLOBALHEADER)  
            pOutputCodecCtx->flags |= CODEC_FLAG_GLOBAL_HEADER;

        if (avcodec_open2(pOutputCodecCtx, pOutputCodecCtx->codec, 0) < 0)
        {
            printf("编码器打开失败，退出程序\n");
            return -1;
        }
    }

    if (!(pFormatCtx_Out->oformat->flags & AVFMT_NOFILE))
    {
        if(avio_open(&pFormatCtx_Out->pb, outFileName, AVIO_FLAG_WRITE) < 0)
        {
            printf("can not open output file handle!\n");
            return -1;
        }
    }

    if(avformat_write_header(pFormatCtx_Out, NULL) < 0)
    {
        printf("can not write the header of the output file!\n");
        return -1;
    }

    return 0;
}

int _tmain(int argc, _TCHAR* argv[])
{
    av_register_all();
    avdevice_register_all();
    if (OpenVideoCapture() < 0)
    {
        return -1;
    }
    if (OpenAudioCapture() < 0)
    {
        return -1;
    }
    if (OpenOutPut() < 0)
    {
        return -1;
    }
//  int fps;
    /*printf("输入帧率：");
    scanf_s("%d",&fps);
    if ( NULL == fps)
    {
        fps = 10;
    }*/

    InitializeCriticalSection(&VideoSection);
    InitializeCriticalSection(&AudioSection);

    AVFrame *picture = av_frame_alloc();
    int size = avpicture_get_size(pFormatCtx_Out->streams[VideoIndex]->codec->pix_fmt, 
        pFormatCtx_Out->streams[VideoIndex]->codec->width, pFormatCtx_Out->streams[VideoIndex]->codec->height);
    picture_buf = new uint8_t[size];

    avpicture_fill((AVPicture *)picture, picture_buf, 
        pFormatCtx_Out->streams[VideoIndex]->codec->pix_fmt, 
        pFormatCtx_Out->streams[VideoIndex]->codec->width, 
        pFormatCtx_Out->streams[VideoIndex]->codec->height);



    //star cap screen thread
    CreateThread( NULL, 0, ScreenCapThreadProc, 0, 0, NULL);
    //star cap audio thread
    CreateThread( NULL, 0, AudioCapThreadProc, 0, 0, NULL);
    int64_t cur_pts_v=0,cur_pts_a=0;
    int VideoFrameIndex = 0, AudioFrameIndex = 0;

    while(1)
    {
        if (_kbhit() != 0 && bCap)
        {
            bCap = false;
            Sleep(2000);
        }
        if (fifo_audio && fifo_video)
        {
            int sizeAudio = av_audio_fifo_size(fifo_audio);
            int sizeVideo = av_fifo_size(fifo_video);
            //缓存数据写完就结束循环
            if (av_audio_fifo_size(fifo_audio) <= pFormatCtx_Out->streams[AudioIndex]->codec->frame_size && 
                av_fifo_size(fifo_video) <= frame_size && !bCap)
            {
                break;
            }
        }

        if(av_compare_ts(cur_pts_v, pFormatCtx_Out->streams[VideoIndex]->time_base, 
                         cur_pts_a,pFormatCtx_Out->streams[AudioIndex]->time_base) <= 0)
        {
            if (av_fifo_size(fifo_video) < frame_size && !bCap)
            {
                cur_pts_v = 0x7fffffffffffffff;
            }
            if(av_fifo_size(fifo_video) >= size)
            {
                EnterCriticalSection(&VideoSection);
                av_fifo_generic_read(fifo_video, picture_buf, size, NULL); //将数据从avfifobuffer馈送到用户提供的回调。
                LeaveCriticalSection(&VideoSection);

                avpicture_fill((AVPicture *)picture, picture_buf,
                    pFormatCtx_Out->streams[VideoIndex]->codec->pix_fmt,
                    pFormatCtx_Out->streams[VideoIndex]->codec->width,
                    pFormatCtx_Out->streams[VideoIndex]->codec->height); //根据指定的图像参数和提供的图像数据缓冲区设置图片字段。

                //pts = n * (（1 / timbase）/ fps);
                //picture->pts = VideoFrameIndex * ((pFormatCtx_Video->streams[0]->time_base.den / pFormatCtx_Video->streams[0]->time_base.num) / 24);
                picture->pts = VideoFrameIndex * ((outVideoCodecCtx->time_base.den * 100000 / outVideoCodecCtx->time_base.num) / 180);

                int got_picture = 0;
                AVPacket pkt;
                av_init_packet(&pkt);

                pkt.data = NULL;
                pkt.size = 0;
                //从帧中获取输入的原始视频数据
                int ret = avcodec_encode_video2(pFormatCtx_Out->streams[VideoIndex]->codec, &pkt, picture, &got_picture);
                if(ret < 0)
                {
                    continue;
                }

                if (got_picture==1)
                {
                    pkt.stream_index = VideoIndex;
                    /*int count = 1;
                    pkt.pts = pkt.dts = count * ((pFormatCtx_Video->streams[0]->time_base.den / pFormatCtx_Video->streams[0]->time_base.num) / 15);
                    count++;*/

                    //x = pts * (timebase1.num / timebase1.den )* (timebase2.den / timebase2.num);

                    pkt.pts = av_rescale_q_rnd(pkt.pts, pFormatCtx_Video->streams[0]->time_base, 
                        pFormatCtx_Out->streams[VideoIndex]->time_base, (AVRounding)(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));  
                    pkt.dts = av_rescale_q_rnd(pkt.dts,  pFormatCtx_Video->streams[0]->time_base, 
                        pFormatCtx_Out->streams[VideoIndex]->time_base, (AVRounding)(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX)); 


                    pkt.duration = ((pFormatCtx_Out->streams[0]->time_base.den / pFormatCtx_Out->streams[0]->time_base.num) / 60);
                    //pkt.duration = 1000/60;
                    //pkt.pts = pkt.dts = Count * (ofmt_ctx->streams[stream_index]->time_base.den) /ofmt_ctx->streams[stream_index]->time_base.num / 10;

                    //Count++;


                    cur_pts_v = pkt.pts;

                    ret = av_interleaved_write_frame(pFormatCtx_Out, &pkt);
                    //delete[] pkt.data;
                    av_free_packet(&pkt);
                }
                VideoFrameIndex++;
            }
        }
        else
        {
            if (NULL == fifo_audio)
            {
                continue;//还未初始化fifo
            }
            if (av_audio_fifo_size(fifo_audio) < pFormatCtx_Out->streams[AudioIndex]->codec->frame_size && !bCap)
            {
                cur_pts_a = 0x7fffffffffffffff;
            }
            if(av_audio_fifo_size(fifo_audio) >= 
                (pFormatCtx_Out->streams[AudioIndex]->codec->frame_size > 0 ? pFormatCtx_Out->streams[AudioIndex]->codec->frame_size : 1024))
            {
                AVFrame *frame;
                frame = av_frame_alloc();
                frame->nb_samples = pFormatCtx_Out->streams[AudioIndex]->codec->frame_size>0 ? pFormatCtx_Out->streams[AudioIndex]->codec->frame_size: 1024;
                frame->channel_layout = pFormatCtx_Out->streams[AudioIndex]->codec->channel_layout;
                frame->format = pFormatCtx_Out->streams[AudioIndex]->codec->sample_fmt;
                frame->sample_rate = pFormatCtx_Out->streams[AudioIndex]->codec->sample_rate;
                av_frame_get_buffer(frame, 0);

                EnterCriticalSection(&AudioSection);
                av_audio_fifo_read(fifo_audio, (void **)frame->data, 
                    (pFormatCtx_Out->streams[AudioIndex]->codec->frame_size > 0 ? pFormatCtx_Out->streams[AudioIndex]->codec->frame_size : 1024));
                LeaveCriticalSection(&AudioSection);

                AVPacket pkt_out;
                av_init_packet(&pkt_out);
                int got_picture = -1;
                pkt_out.data = NULL;
                pkt_out.size = 0;

                frame->pts = AudioFrameIndex * pFormatCtx_Out->streams[AudioIndex]->codec->frame_size;
                if (avcodec_encode_audio2(pFormatCtx_Out->streams[AudioIndex]->codec, &pkt_out, frame, &got_picture) < 0)
                {
                    printf("can not decoder a frame");
                }
                av_frame_free(&frame);
                if (got_picture) 
                {
                    pkt_out.stream_index = AudioIndex;
                    pkt_out.pts = AudioFrameIndex * pFormatCtx_Out->streams[AudioIndex]->codec->frame_size;
                    pkt_out.dts = AudioFrameIndex * pFormatCtx_Out->streams[AudioIndex]->codec->frame_size;
                    pkt_out.duration = pFormatCtx_Out->streams[AudioIndex]->codec->frame_size;

                    cur_pts_a = pkt_out.pts;

                    int ret = av_interleaved_write_frame(pFormatCtx_Out, &pkt_out);
                    av_free_packet(&pkt_out);
                }
                AudioFrameIndex++;
            }
        }
    }

    delete[] picture_buf;

    av_fifo_free(fifo_video);
    av_audio_fifo_free(fifo_audio);

    av_write_trailer(pFormatCtx_Out);

    avio_close(pFormatCtx_Out->pb);
    avformat_free_context(pFormatCtx_Out);

    if (pFormatCtx_Video != NULL)
    {
        avformat_close_input(&pFormatCtx_Video);
        pFormatCtx_Video = NULL;
    }
    if (pFormatCtx_Audio != NULL)
    {
        avformat_close_input(&pFormatCtx_Audio);
        pFormatCtx_Audio = NULL;
    }

    return 0;
}

DWORD WINAPI ScreenCapThreadProc( LPVOID lpParam )
{
    AVPacket packet;
    int got_picture;
    AVFrame *pFrame;
    pFrame=av_frame_alloc();

    AVFrame *picture = av_frame_alloc();
    int size = avpicture_get_size(pFormatCtx_Out->streams[VideoIndex]->codec->pix_fmt, 
        pFormatCtx_Out->streams[VideoIndex]->codec->width, 
        pFormatCtx_Out->streams[VideoIndex]->codec->height);

    avpicture_fill((AVPicture *)picture, picture_buf, 
        pFormatCtx_Out->streams[VideoIndex]->codec->pix_fmt, 
        pFormatCtx_Out->streams[VideoIndex]->codec->width, 
        pFormatCtx_Out->streams[VideoIndex]->codec->height);

    FILE *p = NULL;
    p = fopen("proc_test.yuv", "wb+");
    av_init_packet(&packet);
    int height = pFormatCtx_Out->streams[VideoIndex]->codec->height;
    int width = pFormatCtx_Out->streams[VideoIndex]->codec->width;
    int y_size=height*width;
    while(bCap)
    {
        packet.data = NULL;
        packet.size = 0;
        if (av_read_frame(pFormatCtx_Video, &packet) < 0)
        {
            continue;
        }
        if(packet.stream_index == 0)
        {
            if (avcodec_decode_video2(pCodecCtx_Video, pFrame, &got_picture, &packet) < 0)
            {
                printf("Decode Error.（解码错误）\n");
                continue;
            }
            if (got_picture)
            {
                sws_scale(img_convert_ctx, 
                    (const uint8_t* const*)pFrame->data,
                    pFrame->linesize, 
                    0, 
                    pFormatCtx_Out->streams[VideoIndex]->codec->height,
                    picture->data,
                    picture->linesize);

                if (av_fifo_space(fifo_video) >= size)
                {
                    EnterCriticalSection(&VideoSection);                    
                    av_fifo_generic_write(fifo_video, picture->data[0], y_size, NULL);
                    av_fifo_generic_write(fifo_video, picture->data[1], y_size/4, NULL);
                    av_fifo_generic_write(fifo_video, picture->data[2], y_size/4, NULL);
                    LeaveCriticalSection(&VideoSection);
                }
            }
        }
        av_free_packet(&packet);
    }
    av_frame_free(&pFrame);
    av_frame_free(&picture);
    return 0;
}

DWORD WINAPI AudioCapThreadProc( LPVOID lpParam )
{
    AVPacket pkt;
    AVFrame *frame;
    frame = av_frame_alloc();
    int gotframe;
    while(bCap)
    {
        pkt.data = NULL;
        pkt.size = 0;
        if(av_read_frame(pFormatCtx_Audio,&pkt) < 0)
        {
            continue;
        }

        if (avcodec_decode_audio4(pFormatCtx_Audio->streams[0]->codec, frame, &gotframe, &pkt) < 0)
        {
            av_frame_free(&frame);
            printf("can not decoder a frame");
            break;
        }
        av_free_packet(&pkt);

        if (!gotframe)
        {
            printf("没有获取到数据，继续下一次");
            continue;
        }

        if (NULL == fifo_audio)
        {
            fifo_audio = av_audio_fifo_alloc(pFormatCtx_Audio->streams[0]->codec->sample_fmt, 
                pFormatCtx_Audio->streams[0]->codec->channels, 30 * frame->nb_samples);
        }

        int buf_space = av_audio_fifo_space(fifo_audio);
        if (av_audio_fifo_space(fifo_audio) >= frame->nb_samples)
        {
            EnterCriticalSection(&AudioSection);
            av_audio_fifo_write(fifo_audio, (void **)frame->data, frame->nb_samples);
            LeaveCriticalSection(&AudioSection);
        }
    }
    av_frame_free(&frame);
    return 0;
}


  



  Maybe there is another way to calculate PTS and DTS

  



  I hope whatever the frame rate is,video playback speed is right.Not too fast or too slow.

  


• Matomo vs WP-Statistics – which web analytics plugin suits you best ?

  2 avril 2020, par Joselyn Khor — Analytics Tips, Plugins

  Due to the endless choices, you may be wondering which web analytics plugin (GA, Slimstat or WP-Statistics) to choose from on the WordPress directory. If the choice is between WP-Statistics and Matomo for WordPress, we’ve got you covered. Have a look at which could be the best option for you. Our team tested the WP-Statistics plugin to see how it compares. It’s hard not to be biased, but we’ll try our best to give you a fair assessment.

  The main considerations in this article : 

  • General overview
  • General comparison
  • Similarities
  • Differences
  • Three notable feature category comparisons
  • Which tool suits you better ?

  General overview

  What’s Matomo Analytics for WordPress ?

  Matomo for WordPress is a free, privacy-friendly web analytics plugin that lets you understand website visitors and how they behave on your site. With comprehensive insights, you get the opportunity to increase conversions, and the know-how to improve your website. 

  It lets you undertake essential analysis by tracking information, such as, where visitors are coming from, what your most popular pages are, and how visitors are using your site.

  In addition to the fundamentals, the tool also allows for advanced tracking and analysis with features that give you a full understanding of behavioural patterns and website performance. This enables you to optimise your WordPress website to increase sales or engagement.

  It offers a complete analytics package with the bonuses of 100% data ownership, no data sampling, and GDPR compliance. 

  What’s WP-Statistics ?

  WP-Statistics is currently the most used self-hosted WordPress statistics plugin. It provides reports that let you analyse who your visitors are, where they’re coming from, and to an extent what they’re doing on your website.

  Like Matomo for WordPress, it gives you an understanding of your audience which helps you make decisions on how to improve your website for more conversions. 

  As it’s self-hosted on your own WordPress servers it can be seen as a privacy-friendly choice with a few tweaks (more on this below).

  Like Matomo for WordPress, it gives you an understanding of your audience which helps you make decisions on how to improve your website for more conversions. 

  General comparison

  Let’s compare the installation process and the dashboards that get installed in your WordPress.

  Installation

  Both Matomo and WP-Statistics are installed directly in your WordPress so you’ll be able to see your analytics reports right in your WordPress dashboard. You can install them both straight from the WordPress Directory.

  The installation process for both plugins is beginner-friendly. You simply need to find them on the WordPress directory, click on ‘Install Now’, and tracking should start immediately in your WordPress dashboard.

  Dashboard

  For the main Matomo platform you’ll see :

  • Visitors – Overview, Visits Log, Real-time, Real-time Map, Locations, Devices, Software, Times, User IDs, Custom Variables, User Type
  • Behaviour – Pages, Entry Pages, Exit Pages, Page titles, Site Search, Outlinks, Downloads, Events, Contents, Engagement, Transitions, Users Flow, Top Paths, Page Author, Page Location, Page Type, Crawling errors
  • Acquisition – Overview, All Channels, Search Engine & Keywords, Websites, Social Networks, Campaigns, Campaign URL Builder, Crawling overview
  • Ecommerce – Overview, Ecommerce Log, Products, Sales, Multi Attribution
  • Goals – Overview, Multi Attribution, Choose Goals, Manage Goals
  • These may be worded differently from WP-Statistics, but they show you all the information you need to know about your traffic, pages, etc.

  Previous

  Next

  In the dashboard for WP-Statistics you’ll see :

  • Overview, Hits, Online, Referrers, Search Words, Search Engines, Pages, Visitors, Categories, Tags, Authors, Browsers, Top Visitors Today
  • These are the only things you can see in the dashboard. So you can’t click into them for a drop down section to get deeper insights. 
  •  

  

  Key similarities between Matomo and WP-Statistics

  • Free to use
  • Self-hosted – All data collected is stored only within your own servers, no third parties have rights over your data, and logs or report data will never be sent to other servers. 
  • Beginner-friendly – Both offer simple reporting for people who are very much beginners and only want basic insights. With Matomo the advantage is also that you can get more details should you ever want/need to.

  Key differences between Matomo and WP-Statistics

  The main differences fall in these categories : features, privacy, documentation/support, security, active development, extensibility, price and ads.

  Features : 

  WP-Statistics – On a fundamental level, WP-Statistics is focused on simplicity and the basics. There are fewer reports than Matomo and they function on a level that suits beginners who are interested in seeing only the numbers of visitors on the website, and how often each page is viewed. 

  Matomo – provides an interface with similar simplicity. However, there is also a more feature-rich and more comprehensive user interface available. In addition to the basics, Matomo offers features like Goals, Ecommerce, in the free version which show a deeper level of insight. WP Statistics does not let you track essentials like Goals or Ecommerce.

  Privacy : 

  WP-Statistics – One of the concerns we wish to raise here is for data privacy. There doesn’t appear to be an opt-out option in WP-Statistics, which could be problematic for some privacy laws such as GDPR. There’s also no documentation on this.

  We were a bit concerned to see that WP-Statistics didn’t have IP anonymization enabled by default. Considering the IP address is personal data, it means you are not compliant with privacy laws such as the GDPR when you use this plugin unless you tweak the settings. They mentioned : “In previous versions, there was an option called Hash IP. When Hash IP was activated, the IP addresses wouldn’t be stored in the database, but instead, a unique hash would be used. In this new version, an option has been added to store IPs anonymously. This option is active by default.” However, when we installed this and tested it on multiple WordPress installations, this option was not active by default. 

  Matomo – has more measures in place to ensure privacy is respected, such as, opt-outs. Due to the stringent privacy features in place, Matomo is well equipped to ensure GDPR compliance. Matomo has an abundance of user guides and FAQs you can follow to configure your platform to fully comply with GDPR. There’s even an 12-step compliant checklist. The most compelling proof is that the leading voice on GDPR – The European Commission uses Matomo Analytics. 

  Documentation/Support : 

  WP-Statistics – has little documentation, FAQs, and no support.

  Matomo – has thousands of FAQs and user guides, as well as a dedicated support team and forum you can turn to for help. Should you ever run into any issue, this might be something important to consider.

  The contrast in support between WP-Statistics and Matomo for WordPress :

  

  

  Security :

  Matomo takes protecting your data very seriously. We have a security bounty programme giving security researchers money should they find any security issues. Matomo also performs a security review for every new release. We couldn’t find anything similar in WP-Statistics.

  Active development : 

  WP Statistics – doesn’t seem to have active development. The last change in this plugin was over three months ago (source : https://github.com/wp-statistics/wp-statistics/commits/master) and in general, only 10 people really contributed to it (source : https://github.com/wp-statistics/wp-statistics/graphs/contributors, the graphs shows little contributor activity.) 

  Matomo – has been built by hundreds of contributors (source : https://github.com/matomo-org/matomo/graphs/contributors), and is actively maintained by multiple developers including developers who work on this full time. This means you can rest assured that Matomo will be there for you in the future, it will receive regular improvements.

  Extensibility :

  WP-Statistics – have a section on their website offering customisation but for a price. 

  Matomo – should you want any changes and have some developer knowledge or some developers at hand, you can completely customise and extend Matomo for free. There are also one hundred additional plugins available for Matomo for free. 
  

  Price :

  The main WordPress plugins ‘WP Statistics‘ and ‘Matomo Analytics – Ethical Stats. Powerful Insights.‘ are both free.

  WP Statistics and Matomo also sell paid add-ons. However, WP-Statistics’ paid add-ons are ones already integrated in Matomo for free. These basic features are provided as the development team believe they’re necessities to a fully functional analytics platform. 

  Ads :

  WP Statistics shows you ads, whereas Matomo doesn’t.

  Three most notable feature category comparisons

  Both Matomo and WP-Statistics have basic tracking categories in the WP dashboard. In addition, Matomo has feature categories that can be expanded e.g. when clicked, Visitors drops down to reveal 11 more features. 

  We’ll compare three feature categories : Visitors, Behaviour, and Acquisitions.

  1. Visitors (WP-Statistics) vs Visitors (Matomo)

  Let’s dive into how each analytics platform provides insight into the visitors feature category.

  WP-Statistics

  

  WP-Statistics – We can see WP-Statistics gives you bare bones tracking capabilities so you don’t get a really detailed picture of your visitors. It allows you to monitor users currently online in real-time, which is useful to look at the most recent activity on your site. WP-Statistics doesn’t offer a dropdown section to see more about your visitor’s behavioural patterns. There is no Visitors category in WP-Statistics, just individual features in the dashboard but we can group three options together to compare with Matomo’s Visitors category, these are : Online, Browsers, Top Visitors Today.

  Matomo

  

  

  Comparison

  Matomo – In comparison, Matomo has a Visitors category with a dropdown list that lets you drill deeper into what your visitors are doing. It lets you evaluate every action an individual user has taken on your website which is compiled into a full historical profile. Matomo gives an in-depth view. E.g. you can look at individual visit logs, locations, and devices.

  This lets you see what the life-time journey of an active user looks like, or perhaps you want to see what a profile looks like for a user who comes back time-and-time again without ever purchasing ; there is no better way to gain insights to these journeys and this is why the Visitor Profiles feature is so widely used by Matomo users.

  2. Pages tracking (WP-Statistics) vs Behaviour (Matomo)

  For this comparison, WP-Statistics has a few features that can be combined to compare with Matomo’s Behaviour category. 

  WP-Statistics

  

  The Pages section in WP-Statistics gives a basic look at your most popular pages so you know which pages get more visits and those which aren’t performing. This helps with content improvement. You can also see other features in this Behaviour category like Browsers and Hits – these also provide basic stats to help you get a general sense of visitor behaviour. 

  Matomo

  

  Comparison :

  Matomo on the other hand has stats that go into greater detail. The features under the Behaviour section of the tool let you draw actionable conclusions e.g. seeing that a page has a higher exit rate than it’s supposed to, so you optimise that page to prevent people leaving and help them progress through your website. 

  Not only can you see popular pages, you can look at : which page people viewed first when they visited your website ; which page they left from ; what people search for on your site ; and see how people are flowing through pages. Most importantly you can see how each of these reports perform over time so you can improve engagement and conversions on your website.

  3. Referrers (WP-Statistics) vs Acquisition (Matomo)

  For this comparison, WP-Statistics has a few features that can be combined to compare with Matomo’s Acquisition category. 

  WP-Statistics

  

  WP-Statistics gives you Referrers, Search Words, and Search Engines. Which give a basic understanding of the channels that work best for you. This is helpful to know where to focus more of your attention.

  Matomo

  

  Comparison :

  With Matomo you see multiple layers of stats to understand how your acquisition channels are performing. So you can see tables of data that drill into visits, downloads, bounce rate, and newsletter sign ups. For example seeing that Facebook is the channel bringing in the most visitors to your site. This gives you a better sense of which acquisition strategy is working for your site. 

  Who suits WP-Statistics

  This is a great starter pack for people who want a lightweight, functional statistics plugin that gives you a basic overview of website hits and visitors. It’s very easy to use, so it’s great for beginners and those who want simple tracking. If you have basic goals for your website or blog’s success then WP-Statistics is enough for you to get numbers on visitors, page views, and hits, but won’t be suitable for a larger-scale business or organisation. 

  It’s suited for hobby websites, blogs, and freelancers who want simple, effective stats tracking, who don’t need detailed insights on site performance or tracking. 

  Who suits Matomo

  Matomo can be used for the same basic reporting, but has the capability for you to go deeper into more advanced reporting in a different UI if you need it. It’s an option that can work for a wider range of users – from beginners to analysts. There are features to suit all skill levels. This complete suite of features makes it a more comprehensive tool, as you can get more out of it. Ideal not only for bloggers and beginners, but also powerful enough to suit businesses, privacy-respecting organisations, and those who would benefit from conversion optimisation features. 

  You can draw insights from all stages of the customer journey – you’ll track behavioural patterns as soon as visitors enter your site, to their progression through your site, and ultimately to conversion and exit. It’s also an ethical choice because you get 100% data ownership. 

  If you’d like to look deeper into your data then Matomo would also be suitable for you. Matomo’s UI is lean, very easy to learn and shouldn’t overwhelm users in the way another tool like Google Analytics might do. If you think Matomo suits you best, you can install it for free now.

  Advantages of using Matomo

  Truly privacy-respecting

  There’s no messing about when it comes to privacy. As a lot of users are based in Europe, Matomo adheres to the strictest privacy laws and can be counted on as a privacy-respecting tool that’s used by many government entities. Needing to comply with major privacy laws (GDPR) in Europe means Matomo can proudly ensure users are making the ethical choice.

  GDPR compliance

  You mitigate the risks of getting caught out and fined for breaching GDPR regulations. There’s a complete list of documentation, guides, information, and tools to make sure you’re on the right side of GDPR. 

  All-rounder

  Matomo gives you a clearer picture of your visitors which helps you make better decisions for your website overall. The support and documentation is thorough which means you get more out of your Matomo experience.

  Conclusion

  Both tools will do you justice in terms of fundamental reporting, but Matomo Analytics will outshine if you want a greater understanding of your website and want to carry out deeper levels of analysis.

  You can draw useful insights with WP-Statistics so it has to be said that they are doing something right with an entry-level offering. The simplicity is great, but you won’t really get more than a basic idea of how your site is performing.

  On the flipside, this simplicity could also be a double-edged sword for WP-Statistics in that it’s too simplistic to draw actionable insights. If you’re wanting to know anything that could increase sales, conversions or subscribers – then you wouldn’t really get the reports to do so. 

  WP-Statistics also falls short when it comes to updates and support. So a major difference can be seen in support, active development, ads, security, documentation, which many people may think about until they’re in trouble and find they need these resources. Matomo offers support, continuous product development, and extensive documentation. There are also no ads, making it more enjoyable to use.

  One thing we’d like to raise awareness about is WP-Statistics’ claims of being privacy-respecting without much documentation to back up those claims. There is a lack of privacy features which could put some website owners at risk of non-compliance. Just be sure to check that you’ve carried out the steps to comply with the privacy laws in your country.

  Matomo makes it clear that privacy is essential as is compliance to privacy laws like GDPR. The strength also lies in the peace of mind you get from a tool that’s used by global privacy leaders such as the European Commission. 

• Announcing Matomo 4 : More security, privacy and better performance

  17 novembre 2020, par Matomo Core Team — Community, Development, Privacy, Security
  The moment we’ve all been waiting for is here … Matomo Analytics 4 has launched !! We’re incredibly grateful for all community members and contributors who’ve helped with improvements, and our awesome team for all the fixes. 

  We can’t wait for you to gain greater security, privacy protection, and be able to boost your website performance. Now who’s ready ?

  Minimise your business’ web data security risk

  We’ve made Matomo even more secure to meet our users’ ever increasing security needs. Matomo 4 has certainly delivered on these expectations with a wide range of security enhancements and fixes across the platform :

  • Support for app specific API tokens. [#6559]
  • API tokens and session ids are now stored hashed in the database which means if someone can access your database they wouldn’t be able to get the actual token.
  • A more secure host validation. [#16169]
  • By default, you no longer can embed widgets through tokens with higher privileges. [#16264]
  • Plenty of other minor security fixes.

  More protection of your customer’s personal data

  Matomo 4 ensures you’re compliant with data privacy laws and provides you with more ways to keep your customer’s personal data private, such as :

  • The ability to automatically anonymise the referrer to avoid tracking personal data by accident. [#15426]
  • The option to enforce the disabling of cookies. [#16258]
  • Possibility in JavaScript tracker to turn cookies on and off at any time. [#13056]
  • The option to not store any IP address at all. [#16377]
  • Easily disable visits log and visitor profile feature if needed for privacy compliance [#16259]
  • New segment to separate visitors who gave consent vs visitors who didn’t give consent. [#16192]

  Matomo now offers PHP 8 support to users. Want to know more ? Get a detailed list of over 300 fixes and improvements in the Matomo 4 changelog.

  Increased conversion rates with a focus on page performance

  Our new Page Performance feature in Matomo 4 can help you increase conversion rates by showing you exactly how fast or slow your website is going, and WHY. An Akamai Online Retail Study in 2017 found that a 100-millisecond delay in website load time could underperform website conversion rates by up to 7%. 

  By using this new feature you can quickly identify slow pages and fix page speed issues as soon as they arise, meaning you never miss out on those valuable new sales opportunities.

  Improve your Google search rankings in 2021

  According to moz.com, Google’s bringing in a new ranking factor into their algorithm named Core Web Vitals, which will place greater emphasis on load speed (favouring websites that load faster). This means the slower your page loads, the worse it will rank in Google. With Matomo’s new feature, you’ll be able to optimise your pages to rank better according to the Core Web Vitals ranking factor. 

  Read more on how you can use this new feature : https://matomo.org/faq/how-to/how-do-i-see-page-performance-reports/

  Need help upgrading Matomo ?

  Read the Updating Matomo user guide or contact the Matomo experts. 

  Please note : It may take a while for you to receive a notice to update to Matomo 4.