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Médias (1)
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The Great Big Beautiful Tomorrow
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
Autres articles (74)
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Mise à disposition des fichiers
14 avril 2011, parPar défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...) -
MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 est la première version de MediaSPIP stable.
Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
Organiser par catégorie
17 mai 2013, parDans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...)
Sur d’autres sites (5161)
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X264 : How to access NAL units from encoder ?
18 avril 2014, par user1884325When I call
frame_size = x264_encoder_encode(encoder, &nals, &i_nals, &pic_in, &pic_out);and subsequently write each NAL to a file like this :
if (frame_size >= 0)
{
int i;
int j;
for (i = 0; i < i_nals; i++)
{
printf("******************* NAL %d (%d bytes) *******************\n", i, nals[i].i_payload);
fwrite(&(nals[i].p_payload[0]), 1, nals[i].i_payload, fid);
}
}then I get this
My questions are :
1) Is it normal that there’s readable parameters in the beginning of the file ?
2) How do I configure the X264 encoder so that the encoder returns frames that I can send via UDP without the packet getting fragmented (size must be below 1390 or somewhere around that).
3) With the x264.exe I pass in these options :
"--threads 1 --profile baseline --level 3.2 --preset ultrafast --bframes 0 --force-cfr --no-mbtree --sync-lookahead 0 --rc-lookahead 0 --keyint 1000 --intra-refresh"How do I map those to the settings in the X264 parameters structure ? (x264_param_t)
4) I have been told that the x264 static library doesn’t support bitmap input to the encoder and that I have to use libswscale for conversion of the 24bit RGB input bitmap to YUV2. The encoder, supposedly, only takes YUV2 as input ? Is this true ? If so, how do I build libswscale for the x264 static library ?
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4 ways to create more effective funnels
24 février 2020, par Jake Thornton — UncategorizedAccurately measuring the success of your customer’s journey on your website is vital to increasing conversions and having the best outcome for your business. When it comes to website analytics, the Funnels feature is the best place to start measuring each touch point in the customer journey. From here you’ll find out where you lose your visitors so you can make changes to your website and convert more in the future.
The funnels feature lets you measure the steps (actions, events and pages) your users go through to reach the desired outcomes you want them to achieve. This gives you valuable insights into the desired journey for your customers.
When creating a funnel with the funnels feature, you anticipate the customer journey that you want to measure, for example :
Step 1 – Visitor lands on your homepage and sees the promotion you’re offering.
Step 2 – They click the call-to-action (CTA) button which leads them to information on the product
Step 3 – They add the product to their cart
Step 4 – They fill in their personal information and credit card details
Step 5 – They click the “pay now” buttonFrom here you can see exactly how many visitors you lose between each step. Then you can implement new techniques to decrease these drop-offs and evaluate the success of your changes over time.
But what about the non-conventional routes to conversion ?
That’s right, visitors can end up in all different directions on your website. It’s important to use other features in Matomo to discover these popular pathways your visitors may be taking before the point of conversion.
Here are 4 Matomo features for discovering important alternative funnels on your website :
The transitions feature lets you visualise mini funnels on selected pages. You can see how visitors landed on a specific page, and then where they moved on to from this specific page.
First you need to identify the page(s) that sells your product or service the most.
Whether it’s your homepage, a product page or an information page on your services. The transitions feature will then show you the before and after pathways visitors are already taking to get from page to page
The transitions feature is located under Behaviour – Pages. Find the important page you would like to analyse and click on the Transitions icon.
In the example above, you’ll see 18% of visitors who entered from internal pages came from the homepage, which you may have already suspected as the first step in your conversion funnel.
However, the exact same % of visitors are also entering through a blog post article called /best-of-the-best/
In this case, it highlights the importance of creating funnels with popular blog posts as the first step in the funnel. Your visitors may have found this post through social media, a search engine etc. Whatever the case, your blog posts could be your biggest influencer for conversions on your website.
The overlay feature lets you see exactly where visitors are clicking on your landing pages which moves them either in the right or wrong direction in the conversion funnel.
If you see a high percentage of clicks to a page that’s off the beaten track from your desired conversion funnel, use the Funnels feature to follow this pathway and analyse how they get back to the pathway you initially intended them to take.
The best thing about the page overlay feature is the visualisation showing the results on the landing page itself. This gives you an idea of where they may be getting distracted by the wrong content.
You can locate the page overlay feature beside the transitions feature, shown in the screenshot below.
The page overlay feature also gives you a summary of the pageviews, clicks, bounce rates, exit rates and average time spent on page, so you can measure the overall success of each page in the display menu.
If you’re looking to see many of the most popular pathways your visitors are taking all at once, then Users Flow is a powerful feature which shows this visualisation.
Note : For Matomo On-Premise users, Users Flow is a premium feature. More information here.
The thicker the blue line between interactions means the more popular the pathway is.
Here you can see how visitors are navigating their way through your website before converting, this presenting clear steps in the conversion funnel that require monitoring and improving on to ensure your efforts are going into the right areas on your website.
Another important feature to use which is integrated within the funnels feature, is row evolution which shows you important changes in your user’s behaviour over time.
Having row evolution integrated within the funnels feature gives you a big advantage as it lets you measure the specific metrics and landing pages within your conversion funnel.
You’ll be able to see the increases and decreases in entries and exits to your landing page, as well as increases and decreases in the number of visitors who proceed to the next step in the funnel, and the conversion rate %.
You’ll also be able to add annotations so you can note all the changes you make to your landing pages over time and quickly identify how these changes impacted your conversion funnels.
>>Learn more about Row Evolution
Continually create more and more funnels !
Measuring the success of the desired pathway you want your customers to take is crucial to ensure you are presenting the best possible user experience for your visitors.
However, creating funnels for the less desired pathways is equally important. This way you’ll discover popular journeys your visitors are taking within your website you weren’t previously aware of, and can monitor them to make sure they still work in the future. You’ll be able to fix pain points easier and find faster ways to get visitors back on the right track to converting.
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Error while opening encoder for output stream #0:0 for Creating Video from image,Gif,music
29 février 2020, par brijeshI am trying to create a video from image,gif and music.
Here is the code I used :
{"-y", "-i", imagepath, "-ignore_loop", "0", "-i", gif, "-filter_complex", "[1:v]scale=" + filterdBitmap.getWidth() + ":" + filterdBitmap.getHeight() + "[ovrl];[0:v][ovrl]overlay=0:0", "-ss", "" + startMs / 1000, "-t", "" + endMs / 1000, "-i", songpath, "-c:v", "libx264", "-preset", "ultrafast", "-r", "30", "-pix_fmt", "yuva420p", "-c:a", "aac", "-shortest", outputLocation.getPath()};The error I received was this :
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or heightSpecifically, here is the complete response :
2020-02-29 10:16:01.043 14913-14913/com.photocreator E/fail: ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, png_pipe, from 'file:///storage/emulated/0/1582951553006.jpg':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: png, rgba(pc), 639x812, 25 tbr, 25 tbn, 25 tbc
Input #1, gif, from 'http://13.232.145.224:3003/getpath/video_maker/new/35.gif':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: gif, bgra, 288x480, 15 fps, 15 tbr, 100 tbn, 100 tbc
[mp3 @ 0xaea97200] Skipping 0 bytes of junk at 253.
Input #2, mp3, from '/storage/emulated/0/Download/supnaringtone-49332.mp3':
Metadata:
encoder : Lavf58.20.100
Duration: 00:00:21.76, start: 0.025057, bitrate: 64 kb/s
Stream #2:0: Audio: mp3, 44100 Hz, stereo, s16p, 64 kb/s
Metadata:
encoder : Lavc58.35
Incompatible pixel format 'yuva420p' for codec 'libx264', auto-selecting format 'yuv420p'
[libx264 @ 0xaeacfc00] width not divisible by 2 (639x812)
Output #0, mp4, to '/storage/emulated/0/allkotlin/video/movie_1582951554388.mp4':
Stream #0:0: Video: h264, none, q=2-31, 128 kb/s, 30 fps (default)
Metadata:
encoder : Lavc57.24.102 libx264
Stream #0:1: Audio: aac, 0 channels, 128 kb/s
Metadata:
encoder : Lavc57.24.102 aac
Stream mapping:
Stream #0:0 (png) -> overlay:main (graph 0)
Stream #1:0 (gif) -> scale (graph 0)
overlay (graph 0) -> Stream #0:0 (libx264)
Stream #2:0 -> #0:1 (mp3 (native) -> aac (native))
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or heightIf I use -s 560x560 , it works great, except then I can’t keep on using my aspect ratio :
And here is my code :
public class PhotoEditing extends AppCompatActivity implements GetGifAdapter.GlideInterface, SdCardSongAdapter.MediaInterface
, FiltersListFragmentListener, EmojiFragmentListener, AddTextFragmentListener {
public static final String FILE_PROVIDER_AUTHORITY = "com.burhanrashid52.photoeditor.fileprovider";
@Nullable
@VisibleForTesting
Uri mSaveImageUri;
PhotoEditorView image_preview;
ImageView image_gif/*,image_preview*/;
ImageView save, back;
LinearLayout linearLayout;
public String sessionId, sessionId1;
Uri image_selected_uri;
public Bitmap originalBitmap, filterdBitmap, finalBitmap;
LinearLayout btn_music_list, btn_music_cut, btn_add_gif, btn_filters_list, btn_emoji, btn_add_text;
MediaPlayer mediaPlayer;
String mediaData;
LinearLayout relativeLayout;
RelativeLayout seekbar_layout, fm;
RelativeLayout.LayoutParams layoutparam;
RangeSeekBar rangeSeekBar;
Runnable r;
Handler mHandler;
private int duration;
private TextView tvLeft, tvRight;
RelativeLayout rl_replace, music_fragment;
FilterListFragment filterListFragment;
EmojiFragment emojiFragment;
PhotoEditor photoEditor;
int screenWidth, screenHeight;
Bitmap bitmap;
int brightnessFinal = 0;
int saturationFinal = 0;
int constrantFinal = 0;
int hue = 0;
String glideData;
FFmpeg ffmpeg;
String s;
String imageHeight;
String imageWidth ;
private static final String TAG = "BRIJESH";
Context context = this;
static {
System.loadLibrary("NativeImageProcessor");
}
public Bitmap resizeImageToNewSize(Bitmap bitmap, int i, int i2) {
try {
int width = bitmap.getWidth();
int height = bitmap.getHeight();
float f = (float) i;
float f2 = (float) i2;
if (!(height == i2 && width == i)) {
float f3 = (float) width;
float f4 = f / f3;
float f5 = (float) height;
float f6 = f2 / f5;
if (f4 < f6) {
f6 = f4;
}
f = f3 * f6;
f2 = f5 * f6;
}
Bitmap bitmap1 = Bitmap.createScaledBitmap(bitmap, (int) f, (int) f2, true);
fm.removeView(image_preview);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(bitmap1.getWidth(), bitmap1.getHeight());
params.addRule(RelativeLayout.CENTER_HORIZONTAL);
image_preview.setLayoutParams(params);
fm.addView(image_preview);
return bitmap1;
} catch (Exception unused) {
fm.removeView(image_preview);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(200, 100);
params.addRule(RelativeLayout.CENTER_IN_PARENT);
image_preview.setLayoutParams(params);
fm.addView(image_preview);
return bitmap;
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_photo_editing);
initialize(this);
image_preview = findViewById(R.id.image_preview);
image_preview.getSource().setScaleType(ImageView.ScaleType.FIT_XY);
photoEditor = new PhotoEditor.Builder(this, image_preview)
.setPinchTextScalable(true)
.build();
image_gif = findViewById(R.id.image_gif);
linearLayout = findViewById(R.id.linearLayout);
btn_music_list = findViewById(R.id.btn_music_list);
// btn_music_cut = findViewById(R.id.btn_music_cut);
btn_add_gif = findViewById(R.id.btn_add_gif);
btn_filters_list = findViewById(R.id.btn_filters_list);
btn_emoji = findViewById(R.id.btn_emoji);
btn_add_text = findViewById(R.id.btn_add_text);
fm = findViewById(R.id.frame);
rl_replace = findViewById(R.id.replace_fragment);
music_fragment = findViewById(R.id.music_fragment);
seekbar_layout = findViewById(R.id.seekbar_layout);
rangeSeekBar = findViewById(R.id.rangeSeekBar);
rangeSeekBar.setNotifyWhileDragging(true);
mHandler = new Handler();
tvLeft = findViewById(R.id.tvLeft);
tvRight = findViewById(R.id.tvRight);
relativeLayout = findViewById(R.id.relativeLayout);
save = findViewById(R.id.btndone);
back = findViewById(R.id.btnhome);
mediaPlayer = new MediaPlayer();
back.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mediaPlayer.isPlaying()) {
mediaPlayer.stop();
onBackPressed();
} else onBackPressed();
}
});
sessionId1 = getIntent().getStringExtra("gallary");
sessionId = getPathFromUri(PhotoEditing.this, Uri.parse(sessionId1));
image_selected_uri = Uri.parse(sessionId);
loadImage();
btn_music_list.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// if (seekbar_layout.getVisibility() == View.GONE){
if (mediaPlayer != null && mediaPlayer.isPlaying()) {
mediaPlayer.stop();
}
MusicListFragment musicListFragment = new MusicListFragment();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.replace(R.id.replace_fragment, musicListFragment);
transaction.addToBackStack(null);
transaction.commit();
seekbar_layout.setVisibility(View.VISIBLE);
// }
// else if (seekbar_layout.getVisibility() == View.VISIBLE) {
// seekbar_layout.setVisibility(View.GONE);
// }
}
});
// btn_music_cut.setOnClickListener(new View.OnClickListener() {
// @Override
// public void onClick(View v) {
// if (seekbar_layout.getVisibility() == View.GONE) {
// if (mediaPlayer != null && mediaPlayer.isPlaying()) {
// seekbar_layout.setVisibility(View.VISIBLE);
// }
// } else if (seekbar_layout.getVisibility() == View.VISIBLE) {
// seekbar_layout.setVisibility(View.GONE);
// }
// }
// });
btn_add_gif.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
GIfFragment gIfFragment = new GIfFragment();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.replace(R.id.replace_fragment, gIfFragment);
transaction.addToBackStack(null);
transaction.commit();
}
});
save.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// image_preview.getSource().setDrawingCacheEnabled(true);
// Bitmap b = image_preview.getSource().getDrawingCache();
// MediaStore.Images.Media.insertImage(context.getContentResolver(), b,"", "");
saveImageToGallery();
}
});
}
private void loadImage() {
bitmap = BitmapFactory.decodeFile(image_selected_uri.toString());
originalBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
originalBitmap = modifyOrientation(originalBitmap, sessionId);
finalBitmap = originalBitmap.copy(Bitmap.Config.ARGB_8888, true);
filterdBitmap = originalBitmap.copy(Bitmap.Config.ARGB_8888, true);
DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
int f3672y = displayMetrics.widthPixels;
int f3673z = displayMetrics.heightPixels;
float f = getResources().getDisplayMetrics().density;
int i = f3672y - ((int) (40.0f * f));
int i2 = f3673z - ((int) (f * 100.0f));
image_preview.getSource().setImageBitmap(resizeImageToNewSize(bitmap, i, i2));
}
private void getDropboxIMGSize(Uri uri){
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(new File(uri.getPath()).getAbsolutePath(), options);
imageHeight= String.valueOf(options.outHeight);
imageWidth = String.valueOf(options.outWidth);
}
@SuppressLint("MissingPermission")
private void saveImageToGallery() {
File file = new File(Environment.getExternalStorageDirectory()
+ File.separator + ""
+ System.currentTimeMillis() + ".jpg");
try {
file.createNewFile();
SaveSettings saveSettings = new SaveSettings.Builder()
.setClearViewsEnabled(true)
.setTransparencyEnabled(true)
.build();
photoEditor.saveAsFile(file.getAbsolutePath(), saveSettings, new PhotoEditor.OnSaveListener() {
@Override
public void onSuccess(@NonNull String imagePath) {
Toast.makeText(context, "Image Saved", Toast.LENGTH_SHORT).show();
mSaveImageUri = Uri.fromFile(new File(imagePath));
getDropboxIMGSize(mSaveImageUri);
executeCmd(String.valueOf(mSaveImageUri), mediaData, glideData, rangeSeekBar.getSelectedMinValue().intValue() * 1000, rangeSeekBar.getSelectedMaxValue().intValue() * 1000);
}
@Override
public void onFailure(@NonNull Exception exception) {
}
});
} catch (IOException e) {
e.printStackTrace();
}
}
private void executeCmd(String imagepath, String songpath, String gif, int startMs, int endMs) {
File outputLocation = getConvertedFile(outputPath() + "video", "movie_" + System.currentTimeMillis() + ".mp4");
Log.e("videofilepath", songpath);
String[] complexCommand = {"-y", "-i", imagepath,
"-ignore_loop", "0",
"-i", gif, "-filter_complex", "[1:v]scale=w='bitand(iw,65534)':h='bitand(ih,65534)' [ovrl];[0:v][ovrl]overlay=0:0",
"-ss", "" + startMs / 1000, "-t", "" + endMs / 1000, "-i", songpath,
"-c:v", "libx264", "-preset", "ultrafast", "-r", "30", "-pix_fmt", "yuva420p", "-c:a", "aac", "-shortest", outputLocation.getPath()};
try {
ffmpeg.execute(complexCommand, new ExecuteBinaryResponseHandler() {
@Override
public void onSuccess(String s) {
Log.e("onSuccess", s);
}
@Override
public void onFailure(String s) {
Log.e("fail", s);
}
});
} catch (FFmpegCommandAlreadyRunningException e) {
Log.e("catch", e.getMessage());
}
}
}Any idea what is going on here ? Thanks !
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