merge parts into one file on download

pandora/item/models.py

@@ -1180,6 +1180,18 @@ class Item(models.Model):
             Q(file__is_audio=True)|Q(file__is_video=True)
         ).order_by('file__part', 'file__sort_path')
 
+    def merge_streams(self, output):
+        first = True
+        cmd = ['mkvmerge', '-o', output]
+        streams = [s.media.path for s in self.streams()]
+        if len(streams) > 1:
+            cmd += [streams[0]] + ['+' + s for s in streams[1:]]
+            print cmd
+            p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+            p.wait()
+            return True
+        return streams[0] if streams else None
+
     def update_timeline(self, force=False, async=True):
         streams = self.streams()
         self.make_timeline()

pandora/item/views.py

@@ -13,6 +13,8 @@ from django.db.models import Count, Sum
 from django.template import RequestContext
 from django.http import HttpResponse, HttpResponseForbidden, Http404
 from django.shortcuts import get_object_or_404, redirect, render_to_response
+from django.core.files.temp import NamedTemporaryFile
+from django.core.servers.basehttp import FileWrapper
 from django.conf import settings
 
 from ox.utils import json, ET
@@ -868,6 +870,31 @@ def download(request, id, index=1):
     response['Content-Disposition'] = "attachment; filename*=UTF-8''%s" % quote(filename.encode('utf-8'))
     return response
 
+def download(request, id):
+    item = get_object_or_404(models.Item, itemId=id)
+    resolution = max(settings.CONFIG['video']['resolutions'])
+    if not item.access(request.user) or not item.rendered:
+        return HttpResponseForbidden()
+    ext = '.webm'
+    filename = "%s - %s %s%s" % (
+        item.get('title'),
+        settings.SITENAME,
+        item.itemId,
+        ext
+    )
+    video = NamedTemporaryFile(suffix=ext)
+    content_type = mimetypes.guess_type(video.name)[0]
+    r = item.merge_streams(video.name)
+    if not r:
+        return HttpResponseForbidden()
+    elif r == True:
+        response = HttpResponse(FileWrapper(video), content_type=content_type)
+        response['Content-Length'] = os.path.getsize(video.name)
+    else:
+        response = HttpFileResponse(r, content_type=content_type)
+    response['Content-Disposition'] = "attachment; filename*=UTF-8''%s" % quote(filename.encode('utf-8'))
+    return response
+
 def torrent(request, id, filename=None):
     item = get_object_or_404(models.Item, itemId=id)
     if not item.access(request.user):

vm/firstboot.sh

@@ -45,6 +45,7 @@ apt-get install -y \
     libavcodec-extra-53 \
     libav-tools \
     ffmpeg2theora \
+    mkvtoolnix \
     imagemagick \
     poppler-utils \
     ipython \