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• How to add watermark text and image on video in ffmpeg in flutter

  29 août 2022, par Jatin

  I have tried so many commands from stackoverflow and manny other resources but no any single command worked.

  


  Most of the time I got error

  


  


  Error : No such filter : 'drawtext'

  


  Error : initializing complex filters.

  


  FATAL : Invalid argument

  


  


  commands that I have used but did not work :

  


  

  • $path_of_file = input video path (most preferred .mp4)

  


  • $fullTemporaryPathImage = image path (can be watermarked_logo.png)

  


  • $fullTemporaryPath = font file path (can be .ttf , .otf) $filePath1

  


  • $filePath1 = output video file path (most preferred .mp4)

  


  


  Note : please provide path as per you directory.

  


   - ""-i $path_of_file -vf "
              "[in]drawtext=text='StackOverflow':x=(w-text_w)-(w*0.04):y=(h-text_h)-(w*0.04)[out]"
              " -codec:a copy $filePath1""
 - "Command -i $path_of_file -filter_complex drawtext=fontfile=$fullTemporaryPath:text='Hello' $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex "
      "[0:v][1:v]overlay=10:10,drawtext=fontfile=fullTemporaryPath:text='Hello World':fontcolor=white@1.0:fontsize=30:y=h/2:x=0:enable='between(t,6,20)'"
      " -c:a copy -movflags +faststart output.mp4"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex " +
          "[0:v][1:v]overlay=10:10,drawtext=text='Hello'" +
          " -c:a copy -movflags +faststart $filePath1"
 - "-i $path_of_file -i -vf subtitle.$subtitlePath -c copy -c:s mov_text $filePath1"
 - "-i $path_of_file -i $subtitlePath -c copy -c:s mov_text $filePath1"
 - "-i $path_of_file -i $subtitlePath -c:v libx264 -ar 44100 -ac 2 -ab 128k -strict -2 -c:s mov_text -map 0 -map 1 $filePath1"
 - "-ss 00:00:15 -t 5 -i $path_of_file -vf drawtext=\"fontfile=$fullTemporaryPath:fontsize=200:fontcolor=white:box=1:boxcolor=black@0.8:x=w-tw-100:y=100: text='This'\" $filePath1"
 - "-i $path_of_file -f srt -i $subtitlePath -map 0:0 -map 0:1 -map 1:0 -c:v copy -c:a copy -c:s mov_text $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex [0:v] setpts=PTS-STARTPTS [v01] [1:v] setpts=PTS-STARTPTS [gradient] color=black@0:duration=8 format=yuv420p[txtbase][txtbase][v01]scale2ref[txtbase][v01][txtbase] drawtext=fontfile=$fullTemporaryPath:text='Test':fontcolor=white:fontsize=54:shadowcolor=black@0.6:shadowx=4:shadowy=2:box=1:boxcolor=a60000@0.4:boxborderw=10:x='310':y='350' fade=t=in:st=1:d=1:alpha=1 fade=t=out:st=7:d=1:alpha=1[txt] [v01][gradient] overlay [v02] [v02][txt] overlay[outv] -c:v libx264 -profile:v main -level:v 3.1 -pix_fmt yuv420p -c:a aac -map [outv] -f mp4 -y $filePath1"
 - "-i $path_of_file -vf " +
          "drawtext=enable='between(t,12,15)':fontfile=$fullTemporaryPath:text='Test test':x=10:y=10" +
          " -acodec copy $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex [0:v][1:v]overlay=5:5,drawtext=text=mytext:fontcolor=orange@1.0:fontsize=30:x=30:y=200[output] -map [output] -map 0:a -c:a copy $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex [0:v][1:v]overlay=5:5,drawtext=text=mytext:fontcolor=orange@1.0:fontsize=30:x=30:y=200[v] -map [v] -map 0:a -c:a copy $filePath1"
 - "-i $path_of_file -i $path_of_file -filter_complex [0:v:0] [0:a:0] [0:v:1] [0:a:1] concat=n=2:v=1:a=1 [v][a][v]drawtext=text='SOME TEXT':x=(w-text_w):y=(h-text_h):fontfile=$fullTemporaryPath:fontsize=30:fontcolor=white[v] \-map [v] -map [a] -deinterlace \-vcodec libx264 -pix_fmt yuv420p \-acodec libmp3lame -ar 44100 -threads 6 -qscale 3 -b:a 712000 -bufsize 512k \-f $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex [0:v][1:v]overlay=10:10 'drawtext=fontfile=$fullTemporaryPath:text=mytext:fontcolor=orange@1.0:fontsize=30:x=30:y=200[output]' -map [output] -c:a copy $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex [0:v][1:v]overlay=5:5,drawtext=text=mytext:fontcolor=orange@1.0:fontsize=30:x=30:y=200[v] -map [v] -map 0:a -c:a copy $filePath1"
 - "hii"
 - "-i $path_of_file -vf drawtext=text='My Text':enable='between(t,20,120)': x=(w-text_h)/2: y=(h-text_h)/2: fontsize=32: fontcolor=white: box=1: boxcolor=black@0.5: boxborderw=5: -c:a copy $filePath1 "
 - "'-i $path_of_file -i $fullTemporaryPathImage -filter_complex "[0:v][1:v]overlay=5:5, drawtext="expansion=strftime:fontfile='
        '$fullTemporaryPath'
        ':fontsize=14:fontcolor=white:shadowcolor=black:shadowx=2:shadowy=1:text='
        '$dateTimeVcode'
        ':x=w-tw-10:y=8"" -pix_fmt yuv420p -crf 49 -b:a 128k -cpu-used 8 -deadline realtime -strict experimental $filePath1'"


  


  Command that is worked in IOS to overlay image on video :

  


  "-i $path_of_file -i $fullTemporaryPathImage -filter_complex \"[0:v][1:v] overlay=25:25:enable='between(t,0,20)'\" -pix_fmt yuv420p -c:a copy $filePath1"


  


• Matomo’s privacy-friendly web analytics software named best of the year 2022

  25 janvier 2023, par Erin

  W3Tech names Matomo ‘Traffic Analysis Tool of the Year 2022’ in its Web Technologies of the Year list of technologies that gained the most sites

  Matomo, a world-leading open-source web analytics platform, is proud to announce that it has received W3Tech’s award for the best web analytics software in its Web Technologies of the Year 2022. Matomo is the first independent, open-source tool named Traffic Analysis Tool of the Year – with previous winners including Google Analytics and Facebook Pixel.


  W3Tech, a trusted source for web technology research, determines winners for its annual Web Technologies of the Year list by technologies that gained the most websites. W3Tech surveys usage across millions of websites globally – comparing the number of sites using a technology on January 1st of one year with the number of sites using it the following year.

  W3Tech commenting on the Traffic Analysis Tool winners, said : “Matomo, the privacy-focused open source analytics platform, is the traffic analysis tool of the year for the first time, while Google Analytics and the other previous winners all lost a bit of market share in 2022. The Chinese Baidu Analytics ranks second this year. Snowplow, another open source tool, is an unexpected third.”


  Matomo launched in 2007 as an open-source analytics alternative to Google Analytics, keeps businesses GDPR and CCPA-compliant. Matomo is trusted by over 1.4 million websites in 220 countries and is translated into over 50 languages.


  Matomo founder Matthieu Aubry says, “As the first independent, open-source traffic analysis tool to receive this recognition, Matomo is humbled and honoured to lead the charge for change. It’s a testament to the hard work of our community, and it’s a clear sign that consumers and organisations are looking for ethical alternatives.


  “This recognition is a major win for the entire privacy movement and proves that the tide is turning against the big tech players who I believe have long prioritised profits over privacy. We are committed to continuing our work towards a more private and secure digital landscape for all.”


  In W3Tech’s Web Technologies of the Year 2022, Matomo was also judged third Tag Manager, behind Google Tag Manager and Adobe DTM.


  Matomo helps businesses and organisations track and optimise their online presence allowing users to easily collect, analyse, and act on their website and marketing data to gain a deeper understanding of their visitors and drive conversions and revenue. With 100% data ownership, customers using the company’s tools get the power to protect their website user’s privacy – and where their data is stored and what’s happening to it, without external influence. Furthermore, as the data is not sampled, it maintains data accuracy. 


  Aubry says its recent award is a positive reminder of how well this solution is performing internationally and is a testament to the exceptional quality and performance of Matomo’s powerful web analytics tools that respect a user’s privacy.


  “In 2020, the CJEU ruled US cloud servers don’t comply with GDPR. Then in 2022, the Austrian Data Protection Authority and French Data Protection Authority (CNIL) ruled that the use of Google Analytics is illegal due to data transfers to the US. With Matomo Cloud, the customer’s data is stored in Europe, and no data is transferred to the US. On the other hand, with Matomo On-Premise, the data is stored in your country of choice.


  “Matomo has also become one of the most popular open-source alternatives to Google Analytics for website owners and marketing teams because it empowers web professionals to make business decisions. Website investment, collateral, and arrangement are enriched by having the full picture and control of the data.”

  

  About Matomo

  Matomo is a world-leading open-source web analytics platform, trusted by over 1.4 million websites in 220 countries and translated into over 50 languages. Matomo helps businesses and organisations track and optimise their online presence allowing users to easily collect, analyse, and act on their website and marketing data to gain a deeper understanding of their visitors and drive conversions and revenue. Matomo’s vision is to create, as a community, the leading open digital analytics platform that gives every user complete control of their data.

  For more information/ press enquiries Press – Matomo

• Troll spirit

  15 juin 2013, par Mans — Law and liberty

  Last week’s announcements from the White House of steps being taken to begin fighting back against patent trolls, along with legislation passed in Vermont for the same purpose, are worthy of praise. Whether they prove effective or not, they are a sign of the problem finally having been recognised by the highest authorities. That said, only one aspect of the issue is addressed, that of non-practising entities or trolls. Little effort is being made to stymie troll-like behaviour from otherwise legitimate actors. While a stake is driven through the heart of the troll, its spirit remains free to roam the corporate world, and like a demon of darkness it possesses companies, compelling them to engage in the very practices we seek to eradicate.

  The demon

  The most damaging, when wielded by a troll, are those patents with vague or overly broad claims. These can easily be asserted against large numbers of alleged infringers, many of which likely choose to settle out of court rather than risk an expensive litigation process with uncertain outcome. Such negotiations are frequently subject to non-disclosure agreements prohibiting publication of details in any deals, or even the existence thereof. As a result, an accused has no way of assessing a fair price for a licence (assuming the patent is in fact valid), and the patent holder can thus extract from each would-be infringer precisely as much as they are willing or able to pay to avoid a lawsuit.

  At the root of this problem is the ease with which applications for the patents in question are granted. Given the volume of patent applications, it is hardly reasonable to demand a hugely more extensive examination process than currently takes place (although some improvements here are no doubt possible) ; after all, a speedy decision is in the best interest of all parties. The solution must evidently be found elsewhere.

  The exorcism

  An obvious cure to the problem is the abolishment of the patent system. As this is clearly not feasible today, more practical, albeit less effective, remedies must be sought. A few ideas follow.

  Make patent validity all or nothing

  Change the rules such that any claim being found invalid cancels the patent its entirety. With the full patent at stake in this manner, companies would be discouraged from gambling on frivolous claims and encouraged to conduct a more thorough background investigation before filing.

  Maintain a registry of licences

  Require that all patent licence agreements be filed in an open, easily searchable registry. This would hopefully increase fairness in licensing deals.

  Mandate reimbursement of licence fees for invalidated patents

  If a patent is challenged and found invalid, require that the owner reimburse any licence fees previously collected for the patent in question. Apart from being morally right, this could act as a deterrent to over-charging. The amount requested for a licence would likely be balanced against the risk of being made to pay it all back later, resulting in lower licence fees for low-confidence patents.

  These suggestions, alone or together, will not completely eradicate the problems of patent abuse. They are but small steps towards a more thorough overhaul of a system increasingly ill-suited to the nature and pace of modern technological development.