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• Android : Pass video path to FFmpeg

  7 janvier 2016, par marian

  I have developed an app that play video from gallery. I would like to add watermark using FFmpeg command in the video selected. But I do not know how to pass the path to the FFmpeg command. I could not find proper tutorials or reference regarding this. My coding are as follows :

  MainActivity.java :

  import android.app.Activity;
  
  import android.app.ProgressDialog;
  
  import android.content.DialogInterface;
  
  import android.content.Intent;
  
  import android.net.Uri;
  
  import android.os.Bundle;
  
  import android.os.Handler;
  
  import android.os.Message;
  
  import android.os.PowerManager;
  
  import android.util.Log;
  
  import android.view.View;
  
  import android.widget.Button;
  
  import android.widget.Toast;
  
  import android.widget.VideoView;
  
  
  
  import com.netcompss.ffmpeg4android.CommandValidationException;
  
  import com.netcompss.ffmpeg4android.GeneralUtils;
  
  import com.netcompss.ffmpeg4android.Prefs;
  
  import com.netcompss.ffmpeg4android.ProgressCalculator;
  
  import com.netcompss.loader.LoadJNI;
  
  
  
  public class MainActivity extends Activity {
  
  public ProgressDialog progressBar;
  
  
  
  String workFolder = null;
  
  String demoVideoFolder = null;
  
  String demoVideoPath = null;
  
  String vkLogPath = null;
  
  LoadJNI vk;
  
  private final int STOP_TRANSCODING_MSG = -1;
  
  private final int FINISHED_TRANSCODING_MSG = 0;
  
  private boolean commandValidationFailedFlag = false;
  
  
  
  Button button;
  
  VideoView videoView;
  
  private static final int PICK_FROM_GALLERY = 1;
  
  
  
  
  
  private void runTranscodingUsingLoader() {
  
      Log.i(Prefs.TAG, "runTranscodingUsingLoader started...");
  
  
  
      PowerManager powerManager = (PowerManager)MainActivity.this.getSystemService(Activity.POWER_SERVICE);
  
      PowerManager.WakeLock wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "VK_LOCK");
  
      Log.d(Prefs.TAG, "Acquire wake lock");
  
      wakeLock.acquire();
  
  
  
  
  
  
  
      String[] complexCommand = {"ffmpeg","-y" ,"-i", "/sdcard/videokit/in.mp4","-strict","experimental",
  
              "-vf", "movie=/sdcard/videokit/watermark.png [watermark];" +
  
              " [in][watermark] overlay=main_w-overlay_w-10:10 [out]","-s",
  
              "320x240","-r", "30", "-b", "15496k", "-vcodec", "mpeg4","-ab",
  
              "48000", "-ac", "2", "-ar", "22050", "/sdcard/videokit/out1.mp4"};
  
      ///////////////////////////////////////////////////////////////////////
  
  
  
  
  
      vk = new LoadJNI();
  
      try {
  
          // running complex command with validation
  
          vk.run(complexCommand, workFolder, getApplicationContext());
  
  
  
          // running without command validation
  
          //vk.run(complexCommand, workFolder, getApplicationContext(), false);
  
  
  
          // running regular command with validation
  
          //vk.run(GeneralUtils.utilConvertToComplex(commandStr), workFolder, getApplicationContext());
  
  
  
          Log.i(Prefs.TAG, "vk.run finished.");
  
          // copying vk.log (internal native log) to the videokit folder
  
          GeneralUtils.copyFileToFolder(vkLogPath, demoVideoFolder);
  
  
  
      } catch (CommandValidationException e) {
  
          Log.e(Prefs.TAG, "vk run exeption.", e);
  
          commandValidationFailedFlag = true;
  
  
  
      } catch (Throwable e) {
  
          Log.e(Prefs.TAG, "vk run exeption.", e);
  
      }
  
      finally {
  
          if (wakeLock.isHeld()) {
  
              wakeLock.release();
  
              Log.i(Prefs.TAG, "Wake lock released");
  
          }
  
          else{
  
              Log.i(Prefs.TAG, "Wake lock is already released, doing nothing");
  
          }
  
      }
  
  
  
      // finished Toast
  
      String rc = null;
  
      if (commandValidationFailedFlag) {
  
          rc = "Command Vaidation Failed";
  
      }
  
      else {
  
          rc = GeneralUtils.getReturnCodeFromLog(vkLogPath);
  
      }
  
      final String status = rc;
  
      MainActivity.this.runOnUiThread(new Runnable() {
  
          public void run() {
  
              Toast.makeText(MainActivity.this, status, Toast.LENGTH_LONG).show();
  
              if (status.equals("Transcoding Status: Failed")) {
  
                  Toast.makeText(MainActivity.this, "Check: " + vkLogPath + " for more information.", Toast.LENGTH_LONG).show();
  
              }
  
          }
  
      });
  
  }
  
  
  
  
  
  @Override
  
  public void onCreate(Bundle savedInstanceState) {
  
      super.onCreate(savedInstanceState);
  
      setContentView(R.layout.activity_main);
  
  
  
      button = (Button) findViewById(R.id.button);
  
  
  
      videoView = (VideoView) findViewById(R.id.videoview);
  
  
  
      button.setOnClickListener(new View.OnClickListener() {
  
  
  
          public void onClick(View v) {
  
              // TODO Auto-generated method stub
  
              Intent intent = new Intent();
  
  
  
              intent.setType("video/*");
  
              intent.setAction(Intent.ACTION_GET_CONTENT);
  
  
  
              startActivityForResult(Intent.createChooser(intent, "Complete action using"), PICK_FROM_GALLERY);
  
          }
  
      });
  
  
  
  }
  
  
  
  @Override
  
  public void onActivityResult(int requestCode, int resultCode, Intent data) {
  
      if (resultCode != RESULT_OK) return;
  
  
  
      if (requestCode == PICK_FROM_GALLERY) {
  
          Uri mVideoURI = data.getData();
  
          videoView.setVideoURI(mVideoURI);
  
          videoView.start();
  
          demoVideoFolder = mVideoURI.getPath();
  
          demoVideoPath = demoVideoFolder;
  
          savevideo(mVideoURI);
  
  
  
      }
  
  
  
  
  
  }
  
  private Handler handler = new Handler() {
  
      @Override
  
      public void handleMessage(Message msg) {
  
          Log.i(Prefs.TAG, "Handler got message");
  
          if (progressBar != null) {
  
              progressBar.dismiss();
  
  
  
              // stopping the transcoding native
  
              if (msg.what == STOP_TRANSCODING_MSG) {
  
                  Log.i(Prefs.TAG, "Got cancel message, calling fexit");
  
                  vk.fExit(getApplicationContext());
  
  
  
  
  
              }
  
          }
  
      }
  
  };
  
  
  
  public void runTranscoding() {
  
      progressBar = new ProgressDialog(MainActivity.this);
  
      progressBar.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
  
      progressBar.setTitle("FFmpeg4Android Direct JNI");
  
      progressBar.setMessage("Press the cancel button to end the operation");
  
      progressBar.setMax(100);
  
      progressBar.setProgress(0);
  
  
  
      progressBar.setCancelable(false);
  
      progressBar.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel", new DialogInterface.OnClickListener() {
  
          @Override
  
          public void onClick(DialogInterface dialog, int which) {
  
              handler.sendEmptyMessage(STOP_TRANSCODING_MSG);
  
          }
  
      });
  
  
  
      progressBar.show();
  
  
  
      new Thread() {
  
          public void run() {
  
              Log.d(Prefs.TAG,"Worker started");
  
              try {
  
                  //sleep(5000);
  
                  runTranscodingUsingLoader();
  
                  handler.sendEmptyMessage(FINISHED_TRANSCODING_MSG);
  
  
  
              } catch(Exception e) {
  
                  Log.e("threadmessage",e.getMessage());
  
              }
  
          }
  
      }.start();
  
  
  
      // Progress update thread
  
      new Thread() {
  
          ProgressCalculator pc = new ProgressCalculator(vkLogPath);
  
          public void run() {
  
              Log.d(Prefs.TAG,"Progress update started");
  
              int progress = -1;
  
              try {
  
                  while (true) {
  
                      sleep(300);
  
                      progress = pc.calcProgress();
  
                      if (progress != 0 && progress < 100) {
  
                          progressBar.setProgress(progress);
  
                      }
  
                      else if (progress == 100) {
  
                          Log.i(Prefs.TAG, "==== progress is 100, exiting Progress update thread");
  
                          pc.initCalcParamsForNextInter();
  
                          break;
  
                      }
  
                  }
  
  
  
              } catch(Exception e) {
  
                  Log.e("threadmessage",e.getMessage());
  
              }
  
          }
  
      }.start();
  
  }
  
  
  
  public void savevideo (Uri mVideoURI){
  
      demoVideoFolder = mVideoURI.getPath();
  
      demoVideoPath = demoVideoFolder;
  
      Log.i(Prefs.TAG, getString(R.string.app_name) + " version: " + GeneralUtils.getVersionName(getApplicationContext()));
  
  
  
      Button invoke = (Button) findViewById(R.id.button);
  
      invoke.setOnClickListener(new View.OnClickListener() {
  
          public void onClick(View v) {
  
              Log.i(Prefs.TAG, "run clicked.");
  
              runTranscoding();
  
          }
  
      });
  
  
  
      workFolder = getApplicationContext().getFilesDir() + "/";
  
      Log.i(Prefs.TAG, "workFolder (license and logs location) path: " + workFolder);
  
      vkLogPath = workFolder + "vk.log";
  
      Log.i(Prefs.TAG, "vk log (native log) path: " + vkLogPath);
  
      GeneralUtils.copyLicenseFromAssetsToSDIfNeeded(this, workFolder);
  
      GeneralUtils.copyDemoVideoFromAssetsToSDIfNeeded(this, demoVideoFolder);
  
      int rc = GeneralUtils.isLicenseValid(getApplicationContext(), workFolder);
  
      Log.i(Prefs.TAG, "License check RC: " + rc);
  
  
  
  }
  
  }

  ffmpeg command :

  String[] complexCommand = {"ffmpeg","-y" ,"-i",  "/sdcard/videokit/in.mp4","-strict","experimental",
  
              "-vf", "movie=/sdcard/videokit/watermark.png [watermark];" +
  
              " [in][watermark] overlay=main_w-overlay_w-10:10 [out]","-s",
  
              "320x240","-r", "30", "-b", "15496k", "-vcodec", "mpeg4","-ab",
  
              "48000", "-ac", "2", "-ar", "22050", "/sdcard/videokit/out1.mp4"};

  Tis command is from a sample project. How do i pass the video path to this command ? I do not know how to edit the command to support my requirement. Can someone guide me through this. Any help will be really helpful. Thank you.

• Game Music Appreciation, One Year Later

  1er août 2013, par Multimedia Mike — General

  I released my game music website last year about this time. It was a good start and had potential to grow in a lot of directions. But I’m a bit disappointed that I haven’t evolved it as quickly as I would like to. I have made a few improvements, like adjusting the play lengths of many metadata-less songs and revising the original atrocious design of the website using something called Twitter Bootstrap (and, wow, once you know what Bootstrap is, you start noticing it everywhere on the modern web). However, here are a few of the challenges that have slowed me down over the year :

  Problems With Native Client – Build System
  The technology which enables this project — Google’s Native Client (NaCl) — can be troublesome. One of my key frustrations with the environment is that every single revision of the NaCl SDK seems to adopt a completely new build system layout. If you want to port your NaCl project forward to newer revisions, you have to spend time wrapping your head around whatever the favored build system is. When I first investigated NaCl, I think it was using vanilla GNU Make. Then it switched to SCons. Then I forgot about NaCl for about a year and when I came back, the SDK had reverted back to GNU Make. While that has been consistent, the layout of the SDK sometimes changes and a different example Makefile shows the way.

  The very latest version of the API has required me to really overhaul the Makefile and to truly understand the zen of Makefile programming. I’m even starting to grasp the relationship it has to functional programming.

  Problems With Native Client – API Versions and Chrome Bugs
  I built the original Salty Game Music Player when NaCl API version 16 was current. By the time I published the v16 version, v19 was available. I made the effort to port forward (a few APIs had superfically changed, nothing too dramatic). However, when I would experiment with this new player, I would see intermittent problems on my Windows 7 desktop. Because of this, I was hesitant to make a new player release.

  Around the end of May, I started getting bug reports from site users that their Chrome browsers weren’t allowing them to activate the Salty Game Music Player — the upshot was that they couldn’t play music unless they manually flipped a setting in their browser configuration. It turns out that Chrome 27 introduced a bug that caused this problem. Not only that, but my player was one of only 2 known NaCl apps that used the problematic feature (the other was developed by the Google engineer who entered the bug).

  After feeling negligent for a long while about not doing anything to fix the bug, I made a concerted and creative effort to work around the bug and pushed out a new version of the player (based on API v25). My effort didn’t work and I had to roll it back somewhat (but still using the new player binaries). The bug was something that I couldn’t work around. However, at about the same time that I was attempting to do this, Google was rolling out Chrome 28 which fixed the bug, rendering my worry and effort moot.

  Problems With Native Client – Still Not In The Clear
  I felt reasonably secure about releasing the updated player since I couldn’t make my aforementioned problem occur on my Windows 7 setup anymore. I actually have a written test plan for this player, believe it or not. However, I quickly started receiving new bug reports from Windows users. Mostly, these are Windows 8 users. The player basically doesn’t work at all for them now. One user reports the problem on Windows 7 (and another on Windows 2008 Server, I think). But I can’t see it.

  I have a theory about what might be going wrong, but of course I’ll need to test it, and determine how to fix it.

  Database Difficulties
  The player is only half of the site ; the other half is the organization of music files. Working on this project has repeatedly reminded me of my fundamental lack of skill concerning databases. I have a ‘production’ database– now I’m afraid to do anything with it for fear of messing it up. It’s an an SQLite3 database, so it’s easy to make backups and to create a copy in order to test and debug a new script. Still, I feel like I’m missing an entire career path worth of database best practices.

  There is also the matter of ongoing database maintenance. There are graphical frontends for SQLite3 which make casual updates easier and obviate the need for anything more sophisticated (like a custom web app). However, I have a slightly more complicated database entry task that I fear will require, well, a custom web app in order to smoothly process hundreds, if not thousands of new song files (which have quirks which prohibit the easy mass processing I have been able to get away with so far).

  Going Forward
  I remain hopeful that I’ll gradually overcome these difficulties. I still love this project and I have received nothing but positive feedback over the past year (modulo the assorted recommendations that I port the entire player to pure JavaScript).

  You would think I would learn a lesson about building anything on top of a Google platform in the future, especially Native Client. Despite all this, I have another NaCl project planned.

• 10 Customer Segments Examples and Their Benefits

  9 mai 2024, par Erin

  Now that companies can segment buyers, the days of mass marketing are behind us. Customer segmentation offers various benefits for marketing, content creation, sales, analytics teams and more. Without customer segmentation, your personalised marketing efforts may fall flat. 

  According to the Twilio 2023 state of personalisation report, 69% of business leaders have increased their investment in personalisation. There’s a key reason for this — customer retention and loyalty directly benefit from personalisation. In fact, 62% of businesses have cited improved customer retention due to personalisation efforts. The numbers don’t lie. 

  Keep reading to learn how customer segments can help you fine-tune your personalised marketing campaigns. This article will give you a better understanding of customer segmentation and real-world customer segment examples. You’ll leave with the knowledge to empower your marketing strategies with effective customer segmentation. 

  What are customer segments ?

  Customer segments are distinct groups of people or organisations with similar characteristics, needs and behaviours. Like different species of plants in a garden, each customer segment has specific needs and care requirements. Customer segments are useful for tailoring personalised marketing campaigns for specific groups.

  Personalised marketing has been shown to have significant benefits — with 56% of consumers saying that a personalised experience would make them become repeat buyers. 

  Successful marketing teams typically focus on these types of customer segmentation :

  

  1. Geographic segmentation : groups buyers based on their physical location — country, city, region or climate — and language.
  2. Purchase history segmentation : categorises buyers based on their purchasing habits — how often they make purchases — and allows brands to distinguish between frequent, occasional and one-time buyers. 
  3. Product-based segmentation : groups buyers according to the products they prefer or end up purchasing. 
  4. Customer lifecycle segmentation : segments buyers based on where they are in the customer journey. Examples include new, repeat and lapsed buyers. This segmentation category is also useful for understanding the behaviour of loyal buyers and those at risk of churning. 
  5. Technographic segmentation : focuses on buyers’ technology preferences, including device type, browser type, and operating system. 
  6. Channel preference segmentation : helps us understand why buyers prefer to purchase via specific channels — whether online channels, physical stores or a combination of both. 
  7. Value-based segmentation : categorises buyers based on their average purchase value and sensitivity to pricing, for example. This type of segmentation can provide insights into the behaviours of price-conscious buyers and those willing to pay premium prices. 

  Customer segmentation vs. market segmentation

  Customer segmentation and market segmentation are related concepts, but they refer to different aspects of the segmentation process in marketing. 

  Market segmentation is the broader process of dividing the overall market into homogeneous groups. Market segmentation helps marketers identify different groups based on their characteristics or needs. These market segments make it easier for businesses to connect with new buyers by offering relevant products or new features. 

  On the other hand, customer segmentation is used to help you dig deep into the behaviour and preferences of your current customer base. Marketers use customer segmentation insights to create buyer personas. Buyer personas are essential for ensuring your personalised marketing efforts are relevant to the target audience. 

  10 customer segments examples

  Now that you better understand different customer segmentation categories, we’ll provide real-world examples of how customer segmentation can be applied. You’ll be able to draw a direct connection between the segmentation category or categories each example falls under.

  One thing to note is that you’ll want to consider privacy and compliance when you are considering collecting and analysing types of data such as gender, age, income level, profession or personal interests. Instead, you can focus on these privacy-friendly, ethical customer segmentation types :

  1. Geographic location (category : geographic segmentation)

  The North Face is an outdoor apparel and equipment company that relies on geographic segmentation to tailor its products toward buyers in specific regions and climates. 

  For instance, they’ll send targeted advertisements for insulated jackets and snow gear to buyers in colder climates. For folks in seasonal climates, The North Face may send personalised ads for snow gear in winter and ads for hiking or swimming gear in summer. 

  The North Face could also use geographic segmentation to determine buyers’ needs based on location. They can use this information to send targeted ads to specific customer segments during peak ski months to maximise profits.

  2. Preferred language (category : geographic segmentation)

  Your marketing approach will likely differ based on where your customers are and the language they speak. So, with that in mind, language may be another crucial variable you can introduce when identifying your target customers. 

  Language-based segmentation becomes even more important when one of your main business objectives is to expand into new markets and target international customers — especially now that global reach is made possible through digital channels. 

  Coca-Cola’s “Share a Coke” is a multi-national campaign with personalised cans and bottles featuring popular names from countries around the globe. It’s just one example of targeting customers based on language.

  3. Repeat users and loyal customers (category : customer lifecycle segmentation)

  Sephora, a large beauty supply company, is well-known for its Beauty Insider loyalty program. 

  It segments customers based on their purchase history and preferences and rewards their loyalty with gifts, discounts, exclusive offers and free samples. And since customers receive personalised product recommendations and other perks, it incentivises them to remain members of the Beauty Insider program — adding a boost to customer loyalty.

  By creating a memorable customer experience for this segment of their customer base, staying on top of beauty trends and listening to feedback, Sephora is able to keep buyers coming back.

  

  4. New customers (category : customer lifecycle segmentation)

  Subscription services use customer lifecycle segmentation to offer special promotions and trials for new customers. 

  HBO Max is a great example of a real company that excels at this strategy : 

  They offer 40% savings on an annual ad-free plan, which targets new customers who may be apprehensive about the added monthly cost of a recurring subscription.

  This marketing strategy prioritises fostering long-term customer relationships with new buyers to avoid high churn rates. 

  5. Cart abandonment (category : purchase history segmentation)

  With a rate of 85% among US-based mobile users, cart abandonment is a huge issue for ecommerce businesses. One way to deal with this is to segment inactive customers and cart abandoners — those who showed interest by adding products to their cart but haven’t converted yet — and send targeted emails to remind them about their abandoned carts.

  E-commerce companies like Ipsy, for example, track users who have added items to their cart but haven’t followed through on the purchase. The company’s messaging often contains incentives — like free shipping or a limited-time discount — to encourage passive users to return to their carts. 

  Research has found that cart abandonment emails with a coupon code have a high 44.37% average open rate. 

  6. Website activity (category : technographic segmentation)

  It’s also possible to segment customers based on website activity. Now, keep in mind that this is a relatively broad approach ; it covers every interaction that may occur while the customer is browsing your website. As such, it leaves room for many different types of segmentation. 

  For instance, you can segment your audience based on the pages they visited, the elements they interacted with — like CTAs and forms — how long they stayed on each page and whether they added products to their cart. 

  Matomo’s Event Tracking can provide additional context to each website visit and tell you more about the specific interactions that occur, making it particularly useful for segmenting customers based on how they spend their time on your website. 

  Try Matomo for Free

  Get the web insights you need, while respecting user privacy.

  Start for free

  No credit card required

  Amazon segments its customers based on browsing behaviour — recently viewed products and categories, among other things — which, in turn, allows them to improve the customer’s experience and drive sales.

  7. Traffic source (category : channel segmentation) 

  You can also segment your audience based on traffic sources. For example, you can determine if your website visitors arrived through Google and other search engines, email newsletters, social media platforms or referrals. 

  In other words, you’ll create specific audience segments based on the original source. Matomo’s Acquisition feature can provide insights into five different types of traffic sources — search engines, social media, external websites, direct traffic and campaigns — to help you understand how users enter your website.

  You may find that most visitors arrive at your website through social media ads or predominantly discover your brand through search engines. Either way, by learning where they’re coming from, you’ll be able to determine which conversion paths you should prioritise and optimise further. 

  8. Device type (category : technographic segmentation)

  Device type is customer segmentation based on the devices that potential customers may use to access your website and view your content. 

  It’s worth noting that, on a global level, most people (96%) use mobile devices — primarily smartphones — for internet access. So, there’s a high chance that most of your website visitors are coming from mobile devices, too. 

  However, it’s best not to assume anything. Matomo can detect the operating system and the type of device — desktop, mobile device, tablet, console or TV, for example. 

  By introducing the device type variable into your customer segmentation efforts, you’ll be able to determine if there’s a preference for mobile or desktop devices. In return, you’ll have a better idea of how to optimise your website — and whether you should consider developing an app to meet the needs of mobile users.

  Try Matomo for Free

  Get the web insights you need, while respecting user privacy.

  Start for free

  No credit card required

  9. Browser type (category : technographic segmentation)

  Besides devices, another type of segmentation that belongs to the technographic category and can provide valuable insights is browser-related. In this case, you’re tracking the internet browser your customers use. 

  Many browser types are available — including Google Chrome, Microsoft Edge, Safari, Firefox and Brave — and each may display your website and other content differently. 

  So, keeping track of your customers’ preferred choices is important. Otherwise, you won’t be able to fully understand their online experience — or ensure that these browsers are displaying your content properly. 

  

  10. Ecommerce activity (category : purchase history, value based, channel or product based segmentation) 

  Similar to website activity, looking at ecommerce activity can tell your sales teams more about which pages the customer has seen and how they have interacted with them. 

  With Matomo’s Ecommerce Tracking, you’ll be able to keep an eye on customers’ on-site behaviours, conversion rates, cart abandonment, purchased products and transaction data — including total revenue and average order value.

  Considering that the focus is on sales channels — such as your online store — this approach to customer segmentation can help you improve the sales experience and increase profitability. 

  Start implementing these customer segments examples

  With ever-evolving demographics and rapid technological advancements, customer segmentation is increasingly complex. The tips and real-world examples in this article break down and simplify customer segmentation so that you can adapt to your customer base. 

  Customer segmentation lays the groundwork for your personalised marketing campaigns to take off. By understanding your users better, you can effectively tailor each campaign to different segments. 

  If you’re ready to see how Matomo can elevate your personalised marketing campaigns, try it for free for 21 days. No credit card required.

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