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Autres articles (20)
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Selection of projects using MediaSPIP
2 mai 2011, parThe examples below are representative elements of MediaSPIP specific uses for specific projects.
MediaSPIP farm @ Infini
The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...) -
L’espace de configuration de MediaSPIP
29 novembre 2010, parL’espace de configuration de MediaSPIP est réservé aux administrateurs. Un lien de menu "administrer" est généralement affiché en haut de la page [1].
Il permet de configurer finement votre site.
La navigation de cet espace de configuration est divisé en trois parties : la configuration générale du site qui permet notamment de modifier : les informations principales concernant le site (...) -
Installation en mode ferme
4 février 2011, parLe mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
C’est la méthode que nous utilisons sur cette même plateforme.
L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)
Sur d’autres sites (5292)
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why the output of mp3 decode sounds so delayed ?(with ffmpeg mp3lame lib)
11 mars 2014, par user3401739i'm recording sound and encoding to mp3 with ffmpeg lib. then decode the mp3 data right away, play the decode data, but it's sounds so delayed.
here are the codes :
the function encode first parameter accepts the raw pcm data, len = 44100.encode parameters :
cntx_->channels = 1;
cntx_->sample_rate = 44100;
cntx_->sample_fmt = 6;
cntx_->channel_layout = AV_CH_LAYOUT_MONO;
cntx_->bit_rate = 8000;
err_ = avcodec_open2(cntx_, codec_, NULL);
vector<unsigned char="char"> encode(unsigned char* encode_data, unsigned int len)
{
vector<unsigned char="char"> ret;
AVPacket avpkt;
av_init_packet(&avpkt);
unsigned int len_encoded = 0;
int data_left = len / 2;
int miss_c = 0, i = 0;
while (data_left > 0)
{
int sz = data_left > cntx_->frame_size ? cntx_->frame_size : data_left;
mp3_frame_->nb_samples = sz;
mp3_frame_->format = cntx_->sample_fmt;
mp3_frame_->channel_layout = cntx_->channel_layout;
int needed_size = av_samples_get_buffer_size(NULL, 1,
mp3_frame_->nb_samples, cntx_->sample_fmt, 1);
int r = avcodec_fill_audio_frame(mp3_frame_, 1, cntx_->sample_fmt, encode_data + len_encoded, needed_size, 0);
int gotted = -1;
r = avcodec_encode_audio2(cntx_, &avpkt, mp3_frame_, &gotted);
if (gotted){
i++;
ret.insert(ret.end(), avpkt.data, avpkt.data + avpkt.size);
}
else if (gotted == 0){
miss_c++;
}
len_encoded += needed_size;
data_left -= sz;
av_free_packet(&avpkt);
}
return ret;
}
std::vector<unsigned char="char"> decode(unsigned char* data, unsigned int len)
{
std::vector<unsigned char="char"> ret;
AVPacket avpkt;
av_init_packet(&avpkt);
avpkt.data = data;
avpkt.size = len;
AVFrame* pframe = av_frame_alloc();
while (avpkt.size > 0){
int goted = -1;av_frame_unref(pframe);
int used = avcodec_decode_audio4(cntx_, pframe, &goted, &avpkt);
if (goted){
ret.insert(ret.end(), pframe->data[0], pframe->data[0] + pframe->linesize[0]);
avpkt.data += used;
avpkt.size -= used;
avpkt.dts = avpkt.pts = AV_NOPTS_VALUE;
}
else if (goted == 0){
avpkt.data += used;
avpkt.size -= used;
avpkt.dts = avpkt.pts = AV_NOPTS_VALUE;
}
else if(goted < 0){
break;
}
}
av_frame_free(&pframe);
return ret;
}
</unsigned></unsigned></unsigned></unsigned>Suppose it's the 100th call to encode(data, len), this "frame" would appear in 150th or later in the decode call, the latency is not acceptable. It seems the mp3lame encoder would keep the sample data for later use, but not my desire.
I don't know what is going wrong. Thank you for any information.today i debug the code again and post some detail :
encode : each pcm sample frame len = 23040 ,which is 10 times of mp3 frame size, each time call encode only output 9 frames, this output cause decode output 20736 samples, 1 frame(2304 bytes) is lost, and the sound is noisy.
if the mp3 or mp2 encode is not suitable for real time voice transfer, which encoder should i choose ?
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Changing video color to Black&White and Blue and RGB [on hold]
2 janvier 2016, par drorAlfasiI am using Dranger - ffmpeg and SDL Tutorial and I am trying to change video format to RGB, then when pressing W key transfer to BW and then on C to bring it back to colour.
After bringing it back to colour while pressing on B button the stream need to change to Blue colour.
I can’t success to convert it to RGB.
Any help ?I am using tutorial 07 of Dranger.
Link to Dranger C code -
Issues with processing media on windows Azure
23 septembre 2015, par Ahmed MujtabaI have a website built on ASP.NET web forms that works as a media portal for users to upload videos. I’m using ffmpeg encoders to produce video contents to be streamed in the browser. I’m using the web deploy method to publish the site on the Azure server. The website get’s deployed properly however I get following issues in the live site.
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Video never get’s encoded and published. I get some sort of error.
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Video get’s published but the process of uploading and encoding the video is way too slow on the web server.
My project solution contains upload.ashx that handles the upload requests and makes the call to encode.ashx which is responsible for the encoding and publishing of the videos. I tried to remotely debug the site but the debugger never get’s to encode.ashx.
I was wondering if these issues can be resolved by having the website deployed with a VM ?
Script that uploads the video file :
var filesuploaded = 0;
var faileduploaded = 0;
$(function () {
var uploader = new plupload.Uploader({
runtimes: 'gears,html5,flash,silverlight,browserplus',
browse_button: '<%= pickfiles.ClientID %>',
container: 'container',
max_file_size: '<%= MaxMediaSize %>mb',
url: '<%=Config.GetUrl() %>videos/upload/upload.ashx',
flash_swf_url: '<%=Config.GetUrl() %>plupload/js/plupload.flash.swf',
silverlight_xap_url: '<%=Config.GetUrl() %>plupload/js/plupload.silverlight.xap',
chunk_size: '4mb',
<%= UniqueNames %>
filters: [
{ title: '<%= AllowedFormatsDisplay %>', extensions: '<%= AllowedFormats %>'}],
headers: { UName: '<%=UserName %>', MTP: '<%= MediaType %>' }
});
//uploader.bind('Init', function (up, params) {
// $('#filelist').html("<div>Current runtime: " + params.runtime + "</div>");
//});
uploader.init();
$('#uploadfiles').click(function (e) {
uploader.start();
e.preventDefault();
$("#uploadfiles").hide();
$("#<%= embd.ClientID %>").hide();
});
uploader.bind('FilesAdded', function (up, files) {
$("#uploadfiles").show();
$("#<%= msg.ClientID %>").html("");
var count=0;
$.each(files, function (i, file) {
$('#filelist').append(
'<div class="item_pad_4 bx_br_bt">' + (count + 1) + ': ' + file.name + ' (' + plupload.formatSize(file.size) + ') <b></b></div>' );
count++;
});
var maxupload = <%= MaxVideoUploads %>;
if(count > maxupload)
{
$.each(files, function(i, file) {
uploader.removeFile(file);
});
$('#filelist').html("");
$("#uploadfiles").hide();
Display_Message("#<%= msg.ClientID %>", "Can't upload more than " + maxupload + " records at once!", 1, 1);
return false;
}
else {
$("#tfiles").html(count);
$("#uploadfiles").removeClass("disabled");
$("#<%= pickfiles.ClientID %>").hide();
}
up.refresh(); // Reposition Flash/Silverlight
});
uploader.bind('UploadProgress', function (up, file) {
$('#' + file.id + " b").html(file.percent + "%");
});
uploader.bind('Error', function (up, err) {
$('#filelist').append("<div>Error: " + err.code +
", Message: " + err.message +
(err.file ? ", File: " + err.file.name : "") +
"</div>"
);
up.refresh(); // Reposition Flash/Silverlight
});
var failedstatus = 0;
uploader.bind('FileUploaded', function (up, file, info) {
// encode started
if (info.response != "failed" && info.response != "") {
EncodeVD(file.id, info.response, file.size);
Display_Message('#' + file.id, "Please wait for final processing", 0, 1);
if (failedstatus == 0)
Redirect(info.response);
filesuploaded++;
}
else {
Display_Message('#' + file.id, "Response is: " + info.response, 0, 1);
}
});
});
var redcnt = 0;
function Redirect(filename) {
var IntervalID = setInterval(function () {
redcnt++;
if (redcnt > 2) {
clearInterval(IntervalID);
var tfiles = $("#tfiles").html();
if(tfiles == faileduploaded) { // break further processing all videos failed to upload
}
else if (filesuploaded >= tfiles) {
document.location = "<%=ConfirmPageUrl %>?fn=" + filename + "&gid=<%=GalleryID %>&uvids=" + $("#tfiles").html() + "&mpid=" + $("#maxpid").html().trim() + "<%=GroupParam %>";
}
}
}, 2000);
}
function EncodeVD(mid, mfile, msize) {
var params = '<%= EncodingParams %>&fn=' + mfile;
$.ajax({
type: 'GET',
url: '<%= Encoding_Handler_Path %>',
data: params,
async: true,
success: function (msg) {
if (msg == "Success" || msg == "") {
$('#' + mid).html('<strong>Uploading Completed Successfully - Wait for Processing.');
}
else {
failedstatus = 1;
faileduploaded++;
Display_Message('#' + mid, "Response is: " + msg, 0, 1);
}
}
});
}
</strong>Server side code for processing the file upload :
private int MediaType = 0; // 0 : video, 1: audio
public void ProcessRequest (HttpContext context) {
try
{
context.Response.ContentType = "text/plain";
context.Response.Write(ProcessMedia(context));
}
catch (Exception ex)
{
context.Response.Write("error|" + ex.Message);
}
}
public string ProcessMedia(HttpContext context)
{
if (context.Request.Files.Count > 0)
{
int chunk = context.Request["chunk"] != null ? int.Parse(context.Request["chunk"]) : 0;
string fileName = context.Request["name"] != null ? context.Request["name"] : string.Empty;
//string _fileName = fileName.Remove(fileName.LastIndexOf(".")) + "-" + Guid.NewGuid().ToString().Substring(0, 6) + "" + fileName.Remove(0, fileName.LastIndexOf("."));
HttpPostedFile fileUpload = context.Request.Files[0];
string upath = "";
if (context.Request.Headers["UName"] != null)
upath = context.Request.Headers["UName"].ToString();
//if (CloudSettings.EnableCloudStorage && upath != "")
// _fileName = upath.Substring(0, 3) + "-" + _fileName; // avoid duplication in cloud storage
if (context.Request.Headers["MTP"] != null)
MediaType = Convert.ToInt32(context.Request.Headers["MTP"]);
//string extensions = "";
//if (MediaType == 0)
// extensions = Site_Settings.Video_Allowed_Formats;
//else
// extensions = Site_Settings.Audio_Allowed_Formats;
//bool sts = UtilityBLL.Check_File_Extension(extensions, fileName.ToLower());
//if (sts == false)
//{
// return "Invalid format, please upload proper video!"; // Invalid video format, please upload proper video
//}
int allowable_size_mb = 0;
if (MediaType == 0)
{
allowable_size_mb = Site_Settings.Video_Max_Size;
}
else
{
allowable_size_mb = Site_Settings.Audio_Max_Size;
}
int UploadSize = allowable_size_mb * 1000000;
if (fileUpload.ContentLength > UploadSize)
{
return "Video Limit Exceeds";
}
string uploadPath = "";
// check whether audio / mp3 encoding enabled
if (this.MediaType == 1)
{
// audio encoding
if (fileName.EndsWith(".mp3"))
{
// upload mp3 directly in mp3 path instead of default path
if (upath == "")
uploadPath = UrlConfig.MP3_Path(); // source video path
else
uploadPath = UrlConfig.MP3_Path(upath); // source video path
}
else
{
// default path
if (upath == "")
uploadPath = UrlConfig.Source_Video_Path(); // source video path
else
uploadPath = UrlConfig.Source_Video_Path(upath); // source video path
}
}
else
{//azure
// default path
if (upath == "")
uploadPath = UrlConfig.Source_Video_Path(); // source video path
else
uploadPath = UrlConfig.Source_Video_Path(upath); // source video path
}
FileStream fs;
using (fs = new FileStream(Path.Combine(uploadPath, fileName), chunk == 0 ? FileMode.Create : FileMode.Append))
{
byte[] buffer = new byte[fileUpload.InputStream.Length];
fileUpload.InputStream.Read(buffer, 0, buffer.Length);
fs.Write(buffer, 0, buffer.Length);
}
return fileName; // "Success";
}
else
{
return "failed";
}
return "";
}
public bool IsReusable {
get {
return false;
}
}code in encode.aspx responsible for encoding the video :
private string EncodeMedia(HttpContext context)
{
string sourcepath = "";
string publishedpath = "";
string mp3path = "";
string thumbpath = "";
if (this.UserName != "")
{//azure
sourcepath = UrlConfig.Source_Video_Path(this.UserName);
publishedpath = UrlConfig.Published_Video_Path(this.UserName);
mp3path = UrlConfig.MP3_Path(this.UserName);
thumbpath = UrlConfig.Thumbs_Path(this.UserName);
}
else
{
sourcepath = UrlConfig.Source_Video_Path();
publishedpath = UrlConfig.Published_Video_Path();
mp3path = UrlConfig.MP3_Path();
thumbpath = UrlConfig.Thumbs_Path();
}
if (this.FileName.EndsWith(".mp3") && this.MediaType == 1)
{
// mp3 and audio format
if (!File.Exists(mp3path + "/" + this.FileName))
{
return "Audio file not found!";
}
}
else
{
// rest normal video and audio encoding
if (!File.Exists(sourcepath + "/" + this.FileName))
{
return "Source file not found!";
}
}
if (CloudSettings.EnableCloudStorage && this.UserName != "")
this.FileName = this.UserName.Substring(0, 3) + "-" + this.FileName; // avoid duplication in cloud storage
//double f_contentlength = 0;
//if (Site_Settings.Feature_Packages == 1)
//{
// if (Config.GetMembershipAccountUpgradeType() != 1)
// {
// // Check whether user have enough space to upload content
// // Restriction only for normal or premium users
// f_contentlength = (double)fileUpload.ContentLength / 1000000;
// string media_field_name = "space_video";
// if (MediaType == 1)
// media_field_name = "space_audio";
// if (!User_PackagesBLL.Check_User_Space_Status(upath, media_field_name, f_contentlength) && !isAdmin)
// {
// // insufficient credits to upload content
// return "Insufficient credits to upload media file"; // Response.Redirect(Config.GetUrl("myaccount/packages.aspx?status=" + media_field_name), true);
// }
// }
//}
this.backgroundpublishing = true; // should be true on direct encoding
// Video Processing
string flv_filename = "";
string original_filename = "";
string thumb_filename = "";
string duration = "";
int duration_sec = 0;
// set video actions : 1 -> on, 0 -> off
int isenabled = 1;
int ispublished = 1;
int isreviewed = 1;
int isresponse = 0;
if (Response_VideoID > 0)
isresponse = 1;
string flv_url = "none";
string thumb_url = "none";
string org_url = "none";
string _embed = "";
string errorcode = "0";
VideoInfo info = null;
if (Site_Settings.Content_Approval == 0)
isreviewed = 0;
// check whether audio / mp3 encoding enabled
if (this.FileName.EndsWith(".mp3") && this.MediaType==1)
{
// audio encoding
// mp3 file already
// so no encoding happens
MediaHandler _minfo = new MediaHandler();
_minfo.FFMPEGPath = Encoding_Settings.FFMPEGPATH;
_minfo.FileName = FileName;
_minfo.InputPath = mp3path;
info = _minfo.Get_Info();
flv_filename = FileName;
original_filename = FileName;
duration = info.Duration;
duration_sec = info.Duration_Sec;
isenabled = 1; // enabled
}
else if (this.directpublishing)
{
// publish video
ArrayList itags = new ArrayList();
MHPEncoder encoder = new MHPEncoder();
//if (this.FileName.EndsWith(".mpeg") || this.FileName.EndsWith(".mpg")) // use mpg compatible ffmpeg encoder
// encoder.FfmpegPath = HttpContext.Current.Server.MapPath(HttpContext.Current.Request.ApplicationPath) + "\\ffmpeg\\ffmpegbk\\ffmpeg.exe";
//encoder.ThumbFfmpegPath = Encoding_Settings.FFMPEGPATH; // use normal ffmpeg encoder for thumbs processing
//azure
encoder.FfmpegPath = Encoding_Settings.FFMPEGPATH; // use normal ffmpeg encoder
encoder.FlvToolPath = Encoding_Settings.FLVTOOLPATH; // set meta information for flv videos
encoder.Mp4BoxPath = Encoding_Settings.MP4BoxPath; // set meta information for mp4 videos
encoder.SourcePath = sourcepath;
encoder.SourceFileName = this.FileName;
// No cloud storage on direct encoding
//if (CloudSettings.EnableCloudStorage)
// encoder.EnableCloudStorage = true;
if (MediaType == 1)
{
// audio encoding
itags.Add("14");
encoder.iTags = itags;
encoder.GrabThumbs = false;
encoder.PublishedPath = mp3path;
//_vprocess.OutputPath = this.MP3Path;
//_vprocess.isAudio = true;
}
else
{
// video encoding
itags.Add(EncoderSettings.DefaultITagValue.ToString()); // 5 for 360p mp4 encoding
//itags.Add(7); // this will call 7 case settings to publish next video ending with _7.mp4 instead of _5.mp4
// so there will be 2 videos with different resoultions published at the end of the process?
// yesmake sure use proper settings first test it directly via command.
//okay i got it. But i'm gonna have to use a different media players to incroporate those settings
// once published you can load different videos for different user by checking _7.mp4 (end) va
//okay got it.
//azure
encoder.PublishedPath = publishedpath;
encoder.iTags = itags;
encoder.ThumbsDirectory = thumbpath;
encoder.TotalThumbs = 15;
//_vprocess.ThumbPath = this.ThumbPath;
//_vprocess.OutputPath = this.FLVPath;
//if (Config.isPostWaterMark())
//{
// // script for posting watermark on video
// _vprocess.WaterMarkPath = Server.MapPath(Request.ApplicationPath) + "\\contents\\watermark";
// _vprocess.WaterMarkImage = "watermark.gif";
//}
}
int deleteoption = Site_Settings.Video_Delete_Original;
if (deleteoption == 1)
{
encoder.DeleteSource = true;
}
// background processing
if (this.backgroundpublishing && this.MediaType==0)
{
encoder.BackgroundProcessing = true;
// get information from source video in order to store it in database
MediaHandler _minfo = new MediaHandler();
//if (this.FileName.EndsWith(".mpeg") || this.FileName.EndsWith(".mpg")) // use mpg compatible ffmpeg encoder
// encoder.FfmpegPath = HttpContext.Current.Server.MapPath(HttpContext.Current.Request.ApplicationPath) + "\\ffmpeg\\ffmpegbk\\ffmpeg.exe";
//else
_minfo.FFMPEGPath = Encoding_Settings.FFMPEGPATH;
_minfo.FileName = FileName;
_minfo.InputPath = sourcepath;
info = _minfo.Get_Info();
}
// encode video processing
Video_Information vinfo = encoder.Process();
if (vinfo.ErrorCode > 0)
{
errorcode = vinfo.ErrorCode.ToString();
ErrorLgBLL.Add_Log("Encoding Failed Log", "", "encoding error: " + vinfo.ErrorCode.ToString() + "<br />Description: " + vinfo.ErrorDescription.ToString());
//return vinfo.ErrorDescription;
}
// Double check validation
// if published video exist
// if thumb exist
// then proceed further
if (MediaType == 0)
{
if (!File.Exists(encoder.PublishedPath + "/" + vinfo.FLVVideoName))
{
return "Video failed to published properly.";
}
if (!File.Exists(encoder.ThumbsDirectory + "/" + vinfo.ThumbFileName))
{
return "Thumbs failed to grab from video properly.";
}
}
else
{
if (vinfo.FLVVideoName == "")
{
vinfo.FLVVideoName = this.FileName.Remove(this.FileName.LastIndexOf(".")) + "_14.mp3"; // mp3 file path name
}
if (!File.Exists(encoder.PublishedPath + "/" + vinfo.FLVVideoName))
{
return "Audio failed to published properly.";
}
}
// Now thumbs and video published, procceed for data processing
// get information from vinfo object
if (this.backgroundpublishing && this.MediaType == 0)
{
string OutputFileName = this.FileName.Remove(this.FileName.LastIndexOf("."));
flv_filename = OutputFileName + "_" + EncoderSettings.DefaultITagValue + "." + EncoderSettings.Return_Output_Extension(EncoderSettings.DefaultITagValue);
original_filename = vinfo.OriginalVideoName;
thumb_filename = OutputFileName + "_008.jpg"; // info.ThumbFileName;
duration = info.Duration;
duration_sec = info.Duration_Sec;
}
else
{
flv_filename = vinfo.FLVVideoName;
original_filename = vinfo.OriginalVideoName;
thumb_filename = vinfo.ThumbFileName;
duration = vinfo.Duration;
duration_sec = vinfo.Duration_Sec;
isenabled = vinfo.isEnabled;
}
// No cloud storage on direct encoding.
// Note cloude storage only works if background processing is disabled
// Or works in cased of sheduled processing
if (CloudSettings.EnableCloudStorage && errorcode == "0")
{
flv_url = "amazon";
org_url = "https://s3.amazonaws.com/" + CloudSettings.OriginalVideoBucketName + "/" + this.FileName;
thumb_url = "https://s3.amazonaws.com/" + CloudSettings.ThumbsBucketName + "/" + thumb_filename;
}
}
else
{
// set publishing status off.
ispublished = 0;
original_filename = this.FileName;
}
// Store video information in database
string ipaddress = context.Request.ServerVariables["REMOTE_ADDR"].ToString();
// Store media information in database
Video_Struct vd = new Video_Struct();
vd.CategoryID = 0; // store categoryname or term instead of category id
vd.Categories = Categories;
vd.UserName = UserName;
vd.Title = "";
vd.Description = "";
vd.Tags = Tags;
vd.Duration = duration;
vd.Duration_Sec = duration_sec;
vd.OriginalVideoFileName = original_filename;
vd.VideoFileName = flv_filename;
vd.ThumbFileName = thumb_filename;
vd.isPrivate = Privacy;
vd.AuthKey = PAuth;
vd.isEnabled = isenabled;
vd.Response_VideoID = Response_VideoID; // video responses
vd.isResponse = isresponse;
vd.isPublished = ispublished;
vd.isReviewed = isreviewed;
vd.FLV_Url = flv_url;
vd.Thumb_Url = thumb_url;
vd.Org_Url = org_url;
vd.Embed_Script = _embed;
vd.isExternal = 0; // website own video, 1: embed video
vd.IPAddress = ipaddress;
vd.Type = MediaType;
vd.YoutubeID = "";
vd.isTagsreViewed = 1;
vd.Mode = 0; // filter videos based on website sections
//vd.ContentLength = f_contentlength;
vd.GalleryID = GID;
vd.ErrorCode = Convert.ToInt32(errorcode);
long videoid = VideoBLL.Process_Info(vd, false);
// Process tags
if (Tags != "")
{
int tag_type = 0; // represent videos
if (MediaType == 1)
tag_type = 4; // represent audio file
TagsBLL.Process_Tags(Tags, tag_type, 0);
}
if (Response_VideoID > 0)
{
VideoBLL.Update_Responses(Response_VideoID);
}
return "Success";
} -
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