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Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
You may also (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir
Sur d’autres sites (8501)
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Web Analytics : The Quick Start Guide
25 janvier 2024, par ErinYou’ve spent ages carefully designing your website, crafting copy to encourage as many users as possible to purchase your product.
But they aren’t. And you don’t know why.
The good news is you don’t have to remain in the dark. Collecting and analysing web analytics lets you understand how your users behave on your site and why they aren’t converting.
But before you can do that, you need to know what those metrics and KPIs mean. That’s why this article is taking things back to basics. Below, we’ll show you which metrics to track, what they mean and how to choose the best web analytics platform.
What is web analytics ?
Web analytics is the process of collecting, analysing and reporting website data to understand how users behave on your website. Web analytics platforms like Matomo collect this data by adding a code line to every site page.
Why is it important to track web analytics ?
There are plenty of reasons you should start tracking web analytics, including the following :
Analyse user behaviour
Being able to analyse user behaviour is the most important reason to track website analytics. After all, you can’t improve your website’s conversion rate if you don’t know what users do on your site.
A web analytics platform can show you how users move around your site, the links they click on and the forms they fill in.
Improve site experience
Web analytics is a fantastic way to identify issues and find areas where your site could improve. You could look at your site’s exit pages, for example, and see why so many users leave your site when viewing one of these pages and what you can do to fix it.
It can also teach you about your user’s preferences so you can improve the user experience in the future. Maybe they always click a certain type of button or prefer one page’s design over another. Whatever the case, you can use the data to make your site more user-friendly and increase conversions.
Boost marketing efforts
Web analytics is one of the best ways to understand your marketing efforts and learn how to improve them.
A good platform can collect valuable data about your marketing campaigns, including :
- Where users came from
- What actions these users take on your site
- Which traffic sources create the most conversions
This information can help you decide which marketing campaigns send the best users to your site and generate the highest ROI.
Make informed decisions
Ultimately, web analytics simplifies decision-making for your website and marketing efforts by relying on concrete data instead of guesswork.
Rather than wonder why users aren’t adding products to their shopping cart or signing up for your newsletter, you can analyse how they behave and use that information to hypothesise how you can improve conversions. Web analytics will even give you the data to confirm whether you were right or wrong.
What are the key metrics you should track ?
Getting your head around web analytics means knowing the most important metrics to track. Below are seven key metrics and how to track them using Matomo.
Traffic
Traffic is the number of people visiting your website over a period of time. It is the lifeblood of your website since the more visits your site receives, the more revenue it stands to generate.
However, simply having a high volume of visitors does not guarantee substantial revenue. To maximise your success, focus on attracting your ideal customers and generating quality traffic from those who are most likely to engage with your offerings.
Ideally, you should be seeing an upward trend in traffic over time though. The longer your website has been published and the more quality and targeted content you create, the more traffic you should receive.
Matomo offers multiple ways to check your website’s traffic :
The visits log report in Matomo is perfect if you want a granular view of your visitors.
It shows you each user session and get a detailed picture of each user, including :
- Their geographic location
- The number of actions they took
- How they found your site
- The length of time they stayed
- Their device type
- What browser they are using
- The keyword they used to find your site
Traffic sources
Traffic sources show how users access your website. They can enter via a range of traffic sources, including search engines, email and direct visits, for instance.
Matomo has five default traffic source types :
- Search engine – visitors from search platforms (like Google, Bing, etc.)
- Direct traffic – individuals who directly type your website’s URL into their browser or have it bookmarked, bypassing search engines or external links
- Websites – visits from other external sites
- Campaigns – traffic resulting from specific marketing initiatives (like a newsletter or ad campaign, for instance)
- Social networks – visitors who access your website through various social media platforms (such as Facebook, LinkedIn, Instagram. etc.)
But each of these can be broken into more granular sources. Take organic traffic from search engines, for example :
Matomo tracks visits from each search engine, showing you how many visits you had in total, how many actions those visitors took, and the average amount of time those visitors spent on your site.
You can even integrate Google, Bing and Yahoo search consoles to monitor keyword performance and enhance your search engine optimisation efforts.
Pageviews
Whenever a browser loads a page, your web analytics tool records a pageview. This term, pageview, represents the count of unique times a page on your website is loaded.
You can track pageviews in Matomo by opening the Pages tab in the Behaviour section of the main navigation.
You can quickly see your site’s most visited pages in this report in Matomo.
Be careful of deriving too much meaning from pageviews. Just because a page has lots of views, doesn’t necessarily mean it’s quality or valuable. There are a couple of reasons for this. First, the page might be confusing, so users have to keep revisiting it to understand the content. Second, it could be the default page most visitors land on when they enter your site, like the homepage.
While pageviews offer insights, it’s important to dig deeper into user behaviour and other metrics to truly gauge a page’s importance and impact.
Average time on page
Time on page is the amount of time users spend on the page on average. You can see average time on page in Matomo’s page analytics report.
A low time on page score isn’t necessarily a bad thing. Users will naturally spend less time on gateway pages and checkout pages. A short time spent on checkout pages, especially if users are successfully completing their transactions, indicates that the checkout process is easy and seamless.
Conversely, a longer time on blog posts is a positive indicator. It suggests that readers are genuinely engaged with the content.
Try Matomo for Free
Get the web insights you need, without compromising data accuracy.
Returning visitors
Returning visitors measures the number of people who visit your site more than once. It can be expressed as a number or a percentage.
While some analytics tools only show returning visitors as a percentage, Matomo lets you learn more about each of them in the Visitor profile report.
This report offers a full summary of a user’s previous actions, including :
- How many times they’ve visited your site
- The pages they viewed on each visit
- Where they visited from
- The devices they used
- How quickly pages loaded
When people keep coming back to a website, it’s usually a positive sign and means they like the service, content or products. But, it depends on the type of website. If it’s the kind of site where people make one-off purchases, the focus might not be on getting visitors to return. For a site like this, a high number of returning visitors could indicate that the website is confusing or difficult to use.
It’s all about the context – different websites have different goals, and it’s important to keep this in mind when analysing your site.
Conversions
A conversion is when a user takes a desired action on your website. This could be :
- Making a purchase
- Subscribing to your newsletter
- Signing up for a webinar
You can track virtually any action as a conversion in Matomo by setting goals and analysing the goals report.
As you can see in the screenshot above, Matomo shows your conversions plotted over time. You can also see your conversion rate to get a complete picture and assign a value to each conversion to calculate how much revenue each conversion generates.
Bounce rate
A visitor bounces when they leave your website without taking an action or visiting another page.
Typically, you want bounce rate to be low because it means people are engaged with your site and more likely to convert. However, in some cases, a high bounce rate isn’t necessarily bad. It might mean that visitors found what they needed on the first page and didn’t feel the need to look further.
The impact of bounce rate depends on your website’s purpose and goals.
You can view your website’s bounce rate using Matomo’s page analytics report — the same report that shows pageviews.
Try Matomo for Free
Get the web insights you need, without compromising data accuracy.
Web analytics best practices
You should follow several best practices to get the most from website analytics data.
Choose metrics that align with your goals
Only some metrics your analytics platform tracks will be relevant to your business. So don’t waste time analysing all of them.
Instead, focus on the ones that matter most to your business. A marketer for an e-commerce store, for example, might focus on conversion-related metrics like conversion rate and total number of transactions. They might also want to look at campaign-related metrics, like traffic sources and bounce rates, so they can optimise paid ad campaigns accordingly.
A marketer looking to improve their site’s SEO, on the other hand, will want to track SEO web analytics like bounce rate and broken links.
Add context to your data
Don’t take your data at face value. There could be dozens of factors that impact how visitors access and use your site — many of which are outside your control.
For example, you may think an update to your site has sent your conversions crashing when, in reality, a Google algorithm update has negatively impacted your search traffic.
Adding annotations within Matomo can provide invaluable context to your data. These annotations can be used to highlight specific events, changes or external factors that might influence your website metrics.
By documenting significant occurrences, such as website updates, marketing campaigns or algorithm changes, you create a timeline that helps explain fluctuations in your data.
Go further with advanced web analytics features
It’s clear that a web analytics platform is a necessary tool to understand your website’s performance.
However, if you want greater confidence in decision-making, quicker insights and better use of budget and resources, you need an advanced solution with behavioural analytics features like heatmaps, A/B testing and session recordings.
Most web analytics solutions don’t offer these advanced features, but Matomo does, so we’ll be showcasing Matomo’s behavioural analytics features.
Now, if you don’t have a Matomo account, you can try it free for 21-days to see if it’s the right tool for you.
A heatmap, like the example above, makes it easy to discover where your users pay attention, which part of your site they have problems with, and how they convert. It adds a layer of qualitative data to the facts offered by your web analytics tool.
Similarly, session recordings will offer you real-time playbacks of user interactions, helping you understand their navigation patterns, identify pain points and gain insights into the user experience.
Then you can run experiments bu using A/B testing to compare different versions of your website or specific elements, allowing you to make informed decisions based on actual user preferences and behaviour. For instance, you can compare different headlines, images, page layouts or call-to-action buttons to see which resonates better with your audience.
Together, these advanced features will give you the confidence to optimise your website, improve user satisfaction and make data-driven decisions that positively impact your business.
Try Matomo for Free
Get the web insights you need, without compromising data accuracy.
How to choose a web analytics tool
A web analytics tool is the best way to track the above metrics. Choose the best one for your company by following the steps below.
Look for the right features
Most popular web analytics platforms, like Google Analytics, will offer the same core features like tracking website traffic, monitoring conversions and generating reports.
But it’s the added features that set great tools apart. Do you need specific tools to measure the performance of your e-commerce store, for example ? What about paid ad performance, A/B testing or form analytics ?
By understanding exactly what you need from an analytics platform, you can make an informed choice.
Think about data accuracy
Data accuracy is one of the biggest issues with analytics tools. Many users block cookies or opt out of tracking, making it difficult to get a clear picture of user behaviour — and meaning that you have to think about how your user data will be collected with your chosen platform.
Google Analytics, for instance, uses data sampling to make assumptions about traffic levels rather than relying on accurate data. This can lead to inaccurate reports and false conclusions.
It’s why Matomo doesn’t use data sampling and provides 100% accurate data.
Understand how you’ll deal with data privacy
Data privacy is another big concern for analytics users. Several major analytics platforms aren’t compatible with regional data privacy laws like GDPR, which can impact your ability to collect data in these regions.
It’s why many companies trust privacy-focused analytics tools that abide by regulations without impacting your ability to collect data. Matomo is a market leader in this respect and is one of the few web analytics tools that the Centre for Data Privacy Protection in France has said is exempt from tracking consent requirements.
Many government agencies across Europe, Asia, Africa and North America, including organisations like the United Nations and European Commission, rely on Matomo for web analytics.
Conclusion
Web analytics is a powerful tool that helps you better understand your users, improve your site’s performance and boost your marketing efforts.
If you want a platform that offers advanced features, 100% accurate data and protects your users’ privacy, then look no further than Matomo.
Try Matomo free for 21 days, no credit card required.
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Concat video/audio files downloaded from mpd dash manifest
15 mai 2022, par Bloworlf MathurinI have this manifest I fetched from an url :


<?xml version="1.0"?>
<mpd type="dynamic" xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" availabilitystarttime="2022-05-14T21:18:50-07:00" availabilityendtime="2022-05-14T22:35:36-07:00" timeshiftbufferdepth="PT20S" suggestedpresentationdelay="PT2S" minbuffertime="PT1S" publishtime="2022-05-14T21:18:50-07:00" minimumupdateperiod="PT1S" validationerrors="" currentservertimems="0" firstavtimems="1652588331877" lastvideoframets="0" loapstreamid="17944405669984029" publishframetime="939">
 <period start="PT0S">
 <adaptationset segmentalignment="true" maxwidth="432" maxheight="766" maxframerate="30">
 <representation mimetype="video/mp4" codecs="avc1.4d401e" width="432" height="766" framerate="30" startwithsap="1" bandwidth="38894" maxbandwidth="46772" playbackresolutionmos="432:82.84,720:65.43,216:70.39" qualityclass="sd" qualitylabel="432p">
 <segmenttemplate presentationtimeoffset="0" timescale="1000" initialization="some/url/some_id-init.m4v?ms=m_C&amp;ccb=2-4" media="some/url/some_id-$Time$.m4v?ms=m_C&amp;ccb=2-4">
 <segmenttimeline>
 <s t="4092613" d="2000"></s>
 <s t="4094613" d="2000"></s>
 <s t="4096613" d="2000"></s>
 <s t="4098613" d="2000"></s>
 <s t="4100613" d="2000"></s>
 <s t="4102613" d="2000"></s>
 <s t="4104613" d="2000"></s>
 <s t="4106613" d="2000"></s>
 <s t="4108613" d="2000"></s>
 <s t="4110613" d="2000"></s>
 </segmenttimeline>
 </segmenttemplate>
 </representation>
 </adaptationset>
 <adaptationset segmentalignment="true">
 <representation mimetype="audio/mp4" codecs="mp4a.40.2" audiosamplingrate="44100" startwithsap="1" bandwidth="48979" maxbandwidth="57732">
 <segmenttemplate presentationtimeoffset="0" timescale="1000" initialization="some/url/some_id-init.m4a?ms=m_C&amp;ccb=2-4" media="some/url/some_id-$Time$.m4a?ms=m_C&amp;ccb=2-4">
 <segmenttimeline>
 <s t="4092613" d="2000"></s>
 <s t="4094613" d="2000"></s>
 <s t="4096613" d="2000"></s>
 <s t="4098613" d="2000"></s>
 <s t="4100613" d="2000"></s>
 <s t="4102613" d="2000"></s>
 <s t="4104613" d="2000"></s>
 <s t="4106613" d="2000"></s>
 <s t="4108613" d="2000"></s>
 <s t="4110613" d="2000"></s>
 </segmenttimeline>
 </segmenttemplate>
 </representation>
 </adaptationset>
 </period>
</mpd>


I manage to download all the files (init file + 10 segment files) and put them in an array


File[] files = downloadSegments();

So I have :
[0] -> file-0.m4v (which is the init file)
[1] -> file-1.m4v (1st segment)
... and so on.


My question is how can I concat/append all these files into another file (final_segment.m4v) ?


I looked around a lot and am now using 'com.arthenica:ffmpeg-kit-video:4.5.1-1'
I've last tried :


FFmpegSession session = FFmpegKit.execute("-i file-0.m4v -i file-1.m4v ... -c copy final_segment.m4v");


Is there something I'm missing ?


Also I assume that I'll have to do the same for the audio segments. So I will have 2 files (final_segment.m4v and final_segment.m4a) that I will have to merge/mix together.


If you could help me with some piece of code, that would be great.


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What is Funnel Analysis ? A Complete Guide for Quick Results
25 janvier 2024, par ErinYour funnel is leaking.
You’re losing visitors.
You’re losing conversions and sales.
But you don’t know how it’s happening, where it’s happening, or what to do about it.
The reason ? You aren’t properly analysing your funnels.
If you want to improve conversions and grow your business, you need to understand how to properly assess your sales funnels to set yourself up for success.
In this guide, we’ll show you what funnel analysis is, why it’s important, and what steps you need to take to leverage it to improve conversions.
What is funnel analysis ?
Every business uses sales funnels, whether they know it or not.
But most people aren’t analysing them, costing them conversions.
Funnel analysis is a marketing method to analyse the events leading to specific conversion points.
It aims to look at the entire journey of potential customers from the moment they first touch base with your website or business to the moment they click “buy.”
It’s assessing what your audience is doing at every step of the journey.
By assessing what actions are taking place at scale, you can see where you’re falling short in your sales funnel.
You’ll see :
- Where prospects are falling off.
- Where people are converting well.
By gaining this understanding, you’ll better understand the health of your website’s sales funnels and overall marketing strategy.
With that knowledge, you can optimise your marketing strategy to patch those leaks, improve conversions and grow your business.
Why funnel analysis is important
Funnel analysis is critical because your funnel is your business.
When you analyse your funnel, you’re analysing your business.
You’re looking at what’s working and what’s not so you can grow revenue and profit margins.
Funnel analysis lets you monitor user behaviour to show you the motivation and intention behind their decisions.
Here are five reasons you need to incorporate funnel analysis into your workflow.
1. Gives insights into your funnel problems
The core purpose of funnel analysis is to look at what’s going on on your website.
What are the most effective steps to conversion ?
Where do users drop off in the conversion process ?
And which pages contribute the most to conversion or drop-offs ?
Funnel analysis helps you understand what’s going on with your site visitors. Plus, it helps you see what’s wrong with your funnel.
If you aren’t sure what’s happening with your funnel, you won’t know what to improve to grow your revenue.
2. Improves conversions
When you know what’s going on with your funnel, you’ll know how to improve it.
To improve your conversion funnel, you need to close the leaks. These are areas where website visitors are falling off.
It’s the moment the conversion is lost.
You need to use funnel analysis to give insight into these problem areas. Once you can see where the issue is, you can patch that leak and improve the percentage of visitors who convert.
For example, if your conversion rate on your flagship product page has plateaued and you can’t figure out how to increase conversions, implementing a funnel analysis tactic like heatmaps will show you that visitors are spending time reading your product description. Still, they’re not spending much time near your call to action.
This might tell you that you need to update your description copy or adjust your button (i.e. colour, size, copy). You can increase conversions by making those changes in your funnel analysis insights.
3. Improves the customer experience
Funnel analysis helps you see where visitors spend their time, what elements they interact with and where they fall off.
One of the key benefits of analysing your funnel is you’ll be able to help improve the experience your visitors have on your website.
For example, if you have informational videos on a specific web page to educate your visitors, you might use the Media Analytics feature in your web analytics solution to find out that they’re not spending much time watching them.
This could lead you to believe that the content itself isn’t good or relevant to them.
But, after implementing session recordings within your funnel analysis, you see people clicking a ton near the play button. This might tell you that they’re having trouble clicking the actual button on the video player due to poor UX.
In this scenario, you could update the UX on your web page so the videos are easy to click and watch, no matter what device someone uses.
With more video viewers, you can provide value to your visitors instead of leaving them frustrated trying to watch your videos.
4. Grows revenue
This is what you’re likely after : more revenue.
More often than not, this means you need to focus on improving your conversion rate.
Funnel analysis helps you find those areas where visitors are exiting so you can patch those leaks up and turn more visitors into customers.
Let’s say you have a conversion rate of 1.7%.
You get 50,000 visitors per month.
Your average order is $82.
Even if you increase your conversion rate by 10% (to 1.87%) through funnel analysis, here’s the monthly difference in revenue :
Before : $69,700
After : $76,670In one year, you’ll make nearly $80,000 in additional revenue from funnel analysis alone.
Different types of funnel analysis
There are a few different types of funnel analysis.
How you define success in your funnel all comes down to one of these four pillars.
Depending on your goals, business and industry, you may want to assess the different funnel analyses at different times.
1. Pageview funnel analysis
Pageview funnel analysis is about understanding how well your website content is performing.
It helps you enhance user experience, making visitors stay longer on your site. By identifying poor performing pages (pages with high exit rates), you can pinpoint areas that need optimisation for better engagement.
2. Conversion funnel analysis
Next up, we’re looking at conversion funnel analysis.
This type of funnel analysis is crucial for marketers aiming to turn website visitors into action-takers. This involves tracking and optimising conversion goals, such as signing up for newsletters, downloading ebooks, submitting forms or signing up for free trials.
The primary goal of conversion funnel analysis is to boost your website’s overall conversion rates.
3. E-commerce funnel analysis
For businesses selling products online, e-commerce funnel analysis is essential.
It involves measuring whether your products are being purchased and finding drop-off points in the purchasing process.
By optimising the e-commerce funnel, you can enhance revenue and improve the overall efficiency of your sales process.
How to conduct funnel analysis
Now that you understand what funnel analysis is, why it’s important, and the different types of analysis, it’s time to show you how to do it yourself.
To get started with funnel analysis, you need to have the right web analytics solution.
Here are the most common funnel analysis tools and methods you can use :
1. Funnel analytics
If you want to choose a single tool to conduct funnel analysis, it’s an all-in-one web analytics tool, like Matomo.
With Matomo’s Funnel Analytics, you can dive into your whole funnel and analyse each step (and each step’s conversion rate).
For instance, if you look at the example above, you can see the proceed rate at each funnel step before the conversion page.
This means you can improve each proceed rate, to drive more traffic to your conversion page in order to increase conversion rates.
Try Matomo for Free
Get the web insights you need, without compromising data accuracy.
2. Heatmaps
Heatmaps is a behaviour analytics tool that lets you see different visitor activities, including :
- Mouse movement
- How far down visitors scroll
- Clicks
You can see which elements were clicked on and which weren’t and how far people scroll down your page.
A heatmap lets you see which parts of a page are getting the most attention and which parts go unnoticed by your users.
For example, if, during your funnel analysis, you see that a lot of visitors are falling off after they land on the checkout page, then you might want to add a heatmap on your checkout page to see where and why people are exiting.
3. Session recordings
Want to see what individual users are doing and how they’re interacting with your site ?
Then, you’ll want to check out session recordings.
A session recording is a video playback of a visitor’s time on your website.
4. A/B testing
If you want to take the guesswork out of optimising your funnel and increasing your conversions, you need to start A/B testing.
An A/B test is where you create two versions of a web page to determine which one converts better.
For example, if your heatmaps and session recordings show that your users are dropping off near your call to action, it may be time to test a new version.
You may find that by simply testing a different colour button, you may increase conversions by 20% or more.
5. Form analytics
Are you trying to get more leads to fill out forms on your site ?
Well, Form Analytics can help you understand how your website visitors interact with your signup forms.
This information allows you to optimise your forms effectively, ultimately maximising your success.
Let’s look at the performance of a form using Matomo’s Form Analytics feature below.
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Get the web insights you need, without compromising data accuracy.
Start optimising your funnels with Matomo today
If you want to optimise your business, you must optimise your funnels.
Without information on what’s working and what’s not, you’ll never know if your website changes are making a difference.
Worse yet, you could have underperforming stages in your funnel, but you won’t know unless you start looking.
Funnel analysis changes that.
By analysing your funnels regularly, you’ll be able to see where visitors are leaking out of your funnel. That way, you can get more visitors to convert without generating more traffic.
If you want to improve conversions and grow revenue today, try Matomo’s Funnel Analytics feature.
You’ll be able to see conversion rates, drop-offs, and fine-tuned details on each step of your funnel so you can turn more potential customers into paying customers.
Additionally, Matomo comes equipped with features like heatmaps, session recordings, A/B testing, and form analytics to optimise your funnels with confidence.
Try Matomo free for 21-days. No credit card required.
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