[IMC-Video] flash player recipe

Tue Sep 12 03:15:16 PDT 2006

yeah, fuck amazon and their software patents, i was just talking about
the flash player stuff...

On Tue, 2006-09-12 at 02:49 -0700, mark burdett wrote:
> and, boot up an amazon ec2 to handle the video conversion... ;)
> 
> flash is apparently user-friendly for a lot of folks, i'd be happy as 
> long as there was a "download the original" link.
> 
> i wouldn't put indymedia stuff online @ s3, given the potential for
> copyright/other legal issues.  maybe it could work with a local backup.
> 
> --mark
> 
> On Tue, 12 Sep 2006 00:59:25 -0700, lotu5 at resist.ca wrote:
> > We reall, really need to do something like this for video.indymedia.org
> > using nimiq or whatever its next incarnation is:
> > 
> > http://www.tunaspecial.com/?p=162
> > 
> > also, some other great featuers of youtube that make people use it a lot are:
> > 
> > - user accounts
> > - rss feeds and subscriptions
> > - comments
> > - messaging
> > - tags, allowing "related videos"
> > 
> > here's the full posting from arthur's blog post, found on
> > indyblogs.protest.net:
> > 
> >  A Drupal youtube Site Recipe
> > 
> > Overview
> > This describes a Drupal project to create a youtube style video sharing
> > site. There are two major pieces that this project dealt with that stretch
> > the project:
> > # converting users? uploaded files into a multi-platform format (flv flash
> > videos)
> > # hosting the uploaded content with amazon?s s3 services
> > 
> > The project ended up breaking the upload process apart from the conversion
> > and media hosting processes. Since Drupal already does a good job of
> > getting media on to a machine, what seemed an appropriate way to conserve
> > hardware cycles was to break the conversion process out in a separate
> > script. This script uses the Drupal database to find out what files it
> > needs to process, processes them, then moves them, pushes them over to the
> > s3 servers, and then updates the Drupal database with urls to the media.
> > 
> > Why not the Drupal video module?
> > Given that there is a preexisting Drupal video module which does a nice
> > job of embedding media in the page, why go the route of writing custom
> > script?
> > 
> > Well there are several reasons for this, one of the primary reasons is
> > that the Drupal file system management isn?t yet up to the task of
> > integrating to an off site server easily.
> > 
> > Secondly, I wanted to break the processing side out from the uploading, so
> > that in the event of large numbers of simultaneous uploads, the strain on
> > the server could be moderated. While ffmpeg doesn?t hit the server that
> > hard, it?s isn?t hard to imagine that a few uploads and a few conversions
> > happening concurrently could really load up a machine.
> > 
> > Why use CCK?
> > Part of the thinking behind this project is an attempt to stay as ?in the
> > box? as possible- instead of writing large numbers of custom modules to
> > handle the specifics of things, I figured we could use CCK, use a few
> > tricks (like the form_alter and nodeapi hooks) to make the upload process
> > function more elegantly.
> > 
> > Secondly, CCK offers greater flexibility for integration with views,
> > increasing the amount of data collected in the future, and so on.
> > 
> > Let?s get started
> > Let?s assume you?ve got Drupal all setup and a CCK content type created
> > for your videos. There are two things you?re going to need to add to that
> > content type:
> > # a amazon url
> > # a thumbnail path
> > 
> > I created a custom module which uses the form alter hook to hide these
> > when the user creates their video, but you don?t need to do this.
> > 
> > So now we?ve got some information about how to start finding out files we
> > need to process- because no newly uploaded file will have an amazon url,
> > we know that we can use this as a point of reference for what needs to get
> > processed. Obviously, this is an assumption that holds true in my system-
> > you need to make sure that when you?re getting your list of files that you
> > choose an appropriate way to select them.
> > 
> > $query = "SELECT files.filepath, files.nid FROM files " .
> > "LEFT JOIN ". $drupal_cck_content_table . " ON files.nid = ".
> > $drupal_cck_content_table . ".nid " .
> > "LEFT JOIN node ON node.vid = ". $drupal_cck_content_table . ".vid " .
> > "WHERE ". $drupal_cck_content_table . "." . $drupal_cck_amazon_url_field
> > ." = ''";
> > 
> > >From here, I?ve got files and nids that I can use to my heart?s content.
> > My next step is to process these files. We can do this fairly simply:
> > 
> > $command = "$path_to_ffmpeg -i $file_path -acodec mp3 -ar 22050 -ab 32
> > -vcodec flv -s " . $output_width . "X" . $output_height ." $flv_output";
> > exec($command, $data );
> > 
> > Note that you should have the ?enable-mp3lame and ?enable-faad support
> > compiled into ffmpeg to be able to convert avi and mov files into flash.
> > 
> > We should also create a thumbnail for this video:
> > $command = "$path_to_ffmpeg -y -i $file_path -vframes 1 -ss $thumb_time
> > -an -vcodec mjpeg -f rawvideo -s " . $thumb_width . "X" . $thumb_height ."
> > $thumb_path";
> > exec($command, $data);
> > 
> > You may want to move the file to a different location at this point- I
> > move my source files to an archive so that if media needs to be
> > reconverted, that can happen.
> > 
> > Now we need to move the flv file to amazon?s s3. I used the storage3
> > library which made this straight forward:
> > 
> > $s3=new storage3($myAccessKeyId, $mySecretAccessKey, $url);
> > // put file on amazon
> > $s3->putFile($file_path, $bucket, $file_name);
> > // set the ACL
> > $s3->setACL($bucket, $file_name);
> > return "http://s3.amazonaws.com/" . $bucket . "/" . $file_name;
> > 
> > At this point, we need to update Drupal?s database so that it knows about
> > all these good things that we?ve done. I?ve stored output from the various
> > functions so far in $files.
> > 
> > // update files directory with the new path
> > $query = "UPDATE files SET filepath = '". $file['archived_file'] . "'
> > WHERE nid = '". $file['nid'] . "'";
> > query_db($query);
> > $query = "UPDATE $drupal_cck_content_table SET
> > $drupal_cck_amazon_url_field = '" . $file['amazon_url'] . " WHERE nid =
> > '". $file['nid'] . "'";
> > query_db($query);
> > $query = "UPDATE $drupal_cck_content_table SET
> > $drupal_cck_thumbnailpath_field = '". $file['thumb']."' WHERE nid = '".
> > $file['nid'] . "'";
> > query_db($query);
> > $query = "UPDATE node SET status = 1 WHERE nid='". $file['nid'] . "'";
> > query_db($query);
> > $query = "TRUNCATE cache";
> > query_db($query);
> > 
> > Note that here I publish the node (by default, the node does not publish
> > when the user uploads), and I truncate the cache table. It?s unfortunate
> > to do this, however, I was running into problems with cached node data,
> > and the brute force approach seemed to do the job.
> > 
> > I have this script running off cron, so it will batch process if
> > necessary. Obviously there is much missing here- I will publish my script
> > once I have it cleaned up and presentable. I just wanted to share one
> > approach to doing this.
> > 
> > Finally, we?ve got to theme the video node. I made a specific template for
> > my node and used the following:
> > 
> > $the_path_to_player = base_path() . path_to_theme() .
> > "/flash_flv_player/flvplayer.swf";
> > $the_movie = "$the_path_to_player?file=".
> > $node->field_amazon_flv_file_url[0][value] . "&autostart=true&#8465;=" .
> > base_path() . file_directory_path() . "/" .
> > $node->field_thumbnail_path[0][value];
> > 
> > $params = array(
> > "allowScriptAccess" => "sameDomain",
> > "quality" => "high",
> > "height" => "240",
> > "width" => "320",
> > "movie" => "$the_movie" ,
> > );
> > 
> > drupal_add_js(drupal_get_path('module','swfobject') . "/swfobject.js");
> > print swfobject_create($the_movie, $params);
> > 
> > Once you stitch all this together, you get a pretty nice system.
> > 
> > Drupal modules
> > # CCK
> > # Views
> > # Voting API
> > # UserReview
> > # swfObject
> > # upload
> > # a custom module that modifies the cck fields for uploading
> > 
> > References
> > # ffmpeg : http://ffmpeg.mplayerhq.hu/
> > # php s3 library : http://blog.apokalyptik.com/Storage3/
> > # flash flv player : http://tunaspecial.com/?feed=rss2
> > # Video Blogging using Django and Flash(tm) Video (FLV) :
> > http://blog.go4teams.com/?p=56
> > 
> > 
> > 
> > 
> > _______________________________________________
> > imc-video mailing list
> > imc-video at lists.indymedia.org
> > http://lists.indymedia.org/mailman/listinfo/imc-video
-- 
blog: http://deletetheborder.org/lotu5
podcast: http://feeds.feedburner.com/radioAntifascista

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