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• ffmpeg output + issues

  3 octobre 2014, par Ford

  I am trying to get ffmpeg to work using PHP, in its most basic format, just as a test before i develop my code further.

  However i can not get it to work and get no error messages or indications to what is wrong :-(

  i am trying :

  echo exec("/usr/bin/ffmpeg -y -i /home/xxxxxx/public_html/videos/1746/0765916.avi /home/xxxxxx/public_html/videos/1746/test.mp4"); 

  this is creating a 0kb file, but nothing else :-(
  i get no error message (or anything else !)

  (i have error_reporting turned ON and nothing is displayed in browser or server logs)

  if i add the below to get the codecs available :

  echo exec("ffmpeg -formats");

  this just outputs "worse."

  I do not have access to command line, as i am using a shared hosting server.

  I have had the host run the above from command line, and they say it says "codec not found" or words to the effect.

  is there any way i can get any error output into my php file so i can see what is happening.

  Also how do i go about installing codecs, if this is the problem (the host will install them, but have mentioned they have never installed a codec on a Linux box, so would be grateful if i could point them to any install info too)

  Thanks in advance !

  EDIT :

  after adding in the code that @stewe suggests, this is the output when trying to convert to mp4

  (i can convert to to other formats fine )

  FFmpeg version SVN-r0.5.10-4:0.5.10-1, Copyright (c) 2000-2009 Fabrice
  
  Bellard, et al. configuration: --extra-version=4:0.5.10-1
  
  --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libfaad --enable-libdc1394 --enable-shared --disable-static libavutil 49.15. 0 / 49.15. 0 libavcodec 52.20. 1 / 52.20. 1 libavformat 52.31. 0 /
  
  52.31. 0 libavdevice 52. 1. 0 / 52. 1. 0 libavfilter 0. 4. 0 / 0. 4. 0 libswscale 0. 7. 1 / 0. 7. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on
  
  Feb 16 2013 10:07:01, gcc: 4.4.5 Input #0, avi, from
  
  '/home/xxxxx/public_html/videos/1746/0765916.avi':
  
  Duration: 00:01:37.56, start: 0.000000, bitrate: 868 kb/s Stream #0.0:
  
  Video: mpeg4, yuv420p, 480x272 [PAR 1:1 DAR 30:17], 25 tbr, 25 tbn, 25
  
  tbc Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 128 kb/s Output
  
  #0, mp4, to '/home/xxxxx/public_html/videos/1746/test.mp4':
  
  Stream #0.0: Video: mpeg4, yuv420p, 480x272 [PAR 1:1 DAR 30:17],
  
  q=2-31, 200 kb/s, 90k tbn, 25 tbc Stream #0.1: Audio: 0x0000, 48000
  
  Hz, stereo, s16, 64 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream
  
  #0.1 -> #0.1 [mpeg4 @ 0x9fb7880]removing common factors from framerate Unsupported codec for output stream #0.1

  If anyone can help as to how to fix this issue, as i would ideally like to convert to mp4

• Screen Recording issue using FFMPEG in Android

  12 décembre 2014, par flight

  We are trying to record Android screen using the below commands.

  ffmpeg -y -vcodec rawvideo -f rawvideo -pix_fmt rgb32 -s 320x480 -i /dev/graphics/fb0 /sdcard/output.mp4

  And

  ffmpeg -y -vcodec rawvideo -f rawvideo -pix_fmt rgb32 -s 320x480 -f fbdev /sdcard/output.mp4

  The Logcat output is given below :

  12-12 10:52:04.722: I/ffmpeg4android(27954): ===============Running command from thread path: /sdcard/videokit
  
  12-12 10:52:04.722: I/ffmpeg4android(27954): =======ProgressBackgroundRemote doInBackground=========
  
  12-12 10:52:04.722: I/ffmpeg4android(27954): videokitLibPath: /data/data/com.unscriptd.videoapp/lib/libvideokit.so
  
  12-12 10:52:04.722: I/ffmpeg4android(27954): ffmpeg4android_isComplex: true
  
  12-12 10:52:04.732: I/Videokit(27954): dlopen libvideokit from path: /data/data/com.unscriptd.videoapp/lib/libvideokit.so
  
  12-12 10:52:04.762: W/linker(27954): libvideokit.so has text relocations. This is wasting memory and is a security risk. Please fix.
  
  12-12 10:52:04.892: I/GAV2(27800): Thread[GAThread,5,main]: No campaign data found.
  
  12-12 10:52:04.912: I/Videokit(27954): libvideokit.so loaded
  
  12-12 10:52:04.912: I/Videokit(27954): args is not NULL
  
  12-12 10:52:04.912: I/Videokit(27954): more then one arg
  
  12-12 10:52:04.912: I/Videokit(27954): function symbol found
  
  12-12 10:52:04.912: D/Videokit(27954): Calling videokit run via loader
  
  12-12 10:52:04.912: I/Videokit(27954): vk ffmpeg sdcardPath: /sdcard/videokit
  
  12-12 10:52:04.912: D/Videokit(27954): call licenseCheckComplex
  
  12-12 10:52:04.912: I/Videokit(27954): licenseCheck in path: /sdcard/videokit
  
  12-12 10:52:04.912: I/Videokit(27954): isLicExistsComplex...
  
  12-12 10:52:04.912: I/Videokit(27954): trying to open /sdcard/videokit/ffmpeglicense.lic
  
  12-12 10:52:04.912: I/Videokit(27954): license file found...
  
  12-12 10:52:04.912: I/Videokit(27954): Permanent license validated.
  
  12-12 10:52:04.912: D/Videokit(27954): license check rc: 1
  
  12-12 10:52:04.912: D/Videokit(27954): run() called
  
  12-12 10:52:05.062: D/Videokit(27954): videokit call finished, calling dlclose
  
  12-12 10:52:05.062: I/ffmpeg4android(27954): RemoteService: FFMPEG finished.
  
  12-12 10:52:05.062: I/ffmpeg4android(27954): RemoteService: removing notification.
  
  12-12 10:52:05.062: I/ffmpeg4android(27954): Cancel notification: 5326
  
  12-12 10:52:08.822: D/ffmpeg4android(27873): dur: null
  
  12-12 10:52:08.822: I/ffmpeg4android(27873): dur is not good, not setting
  
  12-12 10:52:08.822: I/ffmpeg4android(27873): _durationOfCurrentWaitIndex is equal to: 6 reseting.
  
  12-12 10:52:08.822: I/ffmpeg4android(27873): setting fake Prefs.durationOfCurrent
  
  12-12 10:52:08.822: W/ffmpeg4android(27873): setting fake Prefs.durationOfCurrent (Cant get from file): 00:03:00.00
  
  12-12 10:52:08.822: W/ffmpeg4android(27873): /sdcard/videokit/ffmpeg4android.log: open failed: ENOENT (No such file or directory)
  
  12-12 10:52:08.822: I/ffmpeg4android(27873): ==== getting currentVkLogSize from FFmpeg4Android log
  
  12-12 10:52:08.822: W/ffmpeg4android(27873): Looks like Vk log is not increasing in size
  
  12-12 10:52:08.822: I/ffmpeg4android(27873): No ffmpeg4android_log file, using vk log
  
  12-12 10:52:08.822: I/line(27873): eg_parse_options
  
  12-12 10:52:08.822: I/line(27873): ffmpeg4android: ffmpeg_parse_options not passed
  
  12-12 10:52:08.822: I/line(27873): exit_program: 1
  
  12-12 10:52:08.822: I/line(27873): ffmpeg4android: 1
  
  12-12 10:52:08.822: W/ffmpeg4android(27873): error line: ffmpeg4android: 1
  
  12-12 10:52:08.822: W/ffmpeg4android(27873): Looks like error in the log
  
  12-12 10:52:08.822: D/ffmpeg4android(27873): currentTimeStr: error
  
  12-12 10:52:08.822: D/ffmpeg4android(27873): ============Found error in the log============
  
  12-12 10:52:08.822: I/ffmpeg4android(27873): onProgressUpdate: 100
  
  12-12 10:52:08.822: D/ffmpeg4android(27873): Releasing wake lock
  
  12-12 10:52:08.822: D/ffmpeg4android(27873): TranscodeBackground onPostExecute
  
  12-12 10:52:08.822: D/ffmpeg4android(27954): set transcodingProgress: 100
  
  12-12 10:52:08.832: D/ffmpeg4android(27873): nullnull length in bytes: 0
  
  12-12 10:52:08.832: D/ffmpeg4android(27873): showNotifications
  
  12-12 10:52:08.832: I/ffmpeg4android(27873): ============ Transcoding Failed, caling fexist

• 5 Key Benefits of Using a Tag Manager

  12 décembre 2021, par erin — Analytics Tips, Marketing

  Websites today have become very complex to manage, and as you continue to look for ways to optimise your website, you’ll want to consider using a Tag Manager. 

  A Tag Manager will help your marketing team seamlessly track how your visitors are engaging with your website’s elements. Without a Tag Manager, you are missing out on business-altering insights.

  In this blog, we’ll cover :

  Tag Manager overview 

  A Tag Manager (AKA Tag Management System or TMS) is a centralised system for implementing, managing and tracking events. A tag is just another word for a piece of code on a website that tracks a specific event. 

  An example of a tag tracking code might be Facebook pixels, ad conversions and other website activities such as signing up to a newsletter or PDF download. 

  Triggers are the actual actions that website visitors take that activate the tag. Examples of triggers are things like : 

  • A thank you page view to show that a visitor has completed a conversion action
  • Clicking a download or sign up button 
  • Scroll depth or how far down users are scrolling on your webpage 

  Each of these will give you insights into how your website is performing and how your users are engaging with your content. Going back to the scroll depth trigger example, this would be particularly helpful for validating bounce rate and finding out where users are dropping off on a page. Discover other ways to take advantage of tags and event tracking. 

  

  5 key benefits of a Tag Manager

  1. Removes the risks of website downtime 

  Tags are powerful for in-depth web analytics. However, tagging opens up the potential for non-technical team members to break the front-end of your website in a couple of clicks. 

  A Tag Manager reduces that risk. For example, Matomo Tag Manager lets you preview tags to see if they are firing before pushing them live. You can also give specific users restricted access so you can approve any tagging before it goes live. 

  Tag Managers protect the functionality of your website and ensure that there is no downtime.

  2. Your website will load faster 

  When it comes to the success of your website, page speed is one of the most important factors. 

  Each time you add a tag to your site, you run the risk of slowing down the page speed. This can quickly build up to a poor performing site and frustrate your visitors.

  You can’t track tags if visitors won’t even stay long enough for your site to load. In fact, 1 in 4 visitors would abandon a website that takes more than 4 seconds to load. According to Deloitte, just a 0.1 second difference in loading speed can affect every step of your customer journey. 

  A Tag Manager, on the other hand, is a lightweight option only requiring one single tag. Using a Tag Manager to track events can make all the difference to your website’s performance and user experience.

  3. Greater efficiency for marketing

  Time is critical in marketing. The longer it takes for a campaign to launch, the greater the chances are that you’re missing out on sales opportunities.

  Waiting for the IT team to tag a thank you page before setting an ad live is inefficient and impacts your bottom line.

  Equipping marketing with a Tag Manager means that they’ll be able to launch campaigns faster and more effectively.

  Check out our Marketer’s Guide to Successful Website Event Tracking for more.

  4. Control all of your tracking and marketing tags in one place 

  Keeping track of what tags are on your site and where they’re located is a complicated task if you aren’t using a Tag Manager. Unmanaged tags can quickly pile up and result in errors with your analytics, like counting conversions twice. 

  Using a Tag Manager to centralise your tags in one easy to manage place reduces the chances of human errors. Instead, your team will be able to quickly see what tags are already in place so they aren’t doubling up on tracking.

  5. Reduce work for the IT team 

  Let’s face it, the IT team has more critical tasks at hand than adding tags to the website. Freeing up your IT team to focus on higher priority tasks should always be a goal.

  Tagging, while crucial for marketing, has the potential to create a lot of extra work for your website developers. Inserting code for each individual tag is time-consuming and means you aren’t collecting data in the meantime.

  Rather than overloading your IT team, empower your marketing team with the ability to add tags with a few clicks. 

  How to choose a Tag Management System

  There are many tools to choose from and the default option tends to be Google Tag Manager (GTM). But before you implement GTM or any other Tag Management Solution, we highly recommend asking these questions :

  1. What are my goals for a Tag Manager ? Before purchasing a Tag Manager, or any tool for that matter, understanding your goals upfront is best practice.
  2. Does the solution offer Tag Manager training resources ? If online Tag Manager training and educational resources are available for the tool, then you’ll be able to hit the ground running and start to see an ROI instantly.
  3. Can I get online support ? In case you need any help with the tool, having access to online support is a big bonus. 
  4. Is it compliant with privacy regulations ? If your business is already compliant, in the process of becoming compliant or future-proofing your tech stack for looming privacy regulations, then researching this is crucial. 
  5. How much does it cost ? If it’s “free”, find out how and why. In most cases, free solutions are just vehicles for collecting data to advertise to your users. 
  6. What do others think about the Tag Manager ? Check out reviews on sites like Capterra or G2 to find out how other businesses rate the tool. 

  Google Tag Manager alternative

  As privacy becomes a greater concern globally for end-users and governments, many businesses are looking for alternatives to the world’s largest advertising company – Google.

  Matomo Tag Manager is more than a Google Tag Manager alternative. With Matomo Tag Manager, you get a GDPR, HIPAA, CCPA and PECR compliant, open source Tag Manager and your data is 100% yours to own.

  Plus, with Matomo Tag Manager you only need one single tracking code for all of your website and tag analytics. No matter what you are tracking (scrolls, clicks, downloads, Heatmaps, visits, etc.), you will only ever need one piece of code on your website and one tool to manage it all. 

  The takeaway 

  Tagging is powerful but can quickly become complicated, risky and time-consuming. Tag Managers reduce these obstacles allowing you to set tags and triggers effortlessly. It empowers marketing teams, streamlines processes and removes the reliance on IT.

  Ready to try Matomo Tag Manager ? Start your 21-day free trial now – no credit card required.