check for avconv version and use new command line api if needed (to support Ubuntu 14.04)

pandora/app/config.py

@@ -16,7 +16,7 @@ from django.contrib.auth.models import User
 import ox.jsonc
 from ox.utils import json
 
-from archive.extract import supported_formats, AVCONV
+from archive.extract import supported_formats, AVCONV, avconv_version
 from item.utils import get_by_id
 
 
@@ -142,6 +142,7 @@ check the README for further details.
 
 ''' % AVCONV)
 
+        settings.AVCONV_VERSION = avconv_version()
         settings.CONFIG = config
         admin = len(settings.CONFIG['userLevels']) - 1
         if not 'syncdb' in sys.argv \

pandora/archive/extract.py

@@ -62,6 +62,13 @@ def supported_formats():
         'mp4': 'libx264' in stdout and 'libvo_aacenc' in stdout,
     }
 
+def avconv_version():
+    p = subprocess.Popen([AVCONV],
+            stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    stdout, stderr = p.communicate()
+    version = stderr.split(' ')[2].split('-')[0]
+    return version
+
 def stream(video, target, profile, info, avconv=None):
     if not os.path.exists(target):
         ox.makedirs(os.path.dirname(target))
@@ -198,6 +205,13 @@ def stream(video, target, profile, info, avconv=None):
                 '-qdiff', '4'
             ]
             '''
+            if settings.AVCONV_VERSION >= '9':
+                video_settings += [
+                    '-vcodec', 'libx264',
+                    '-preset:v', 'medium',
+                    '-profile:v', 'baseline',
+                ]
+            else:
                 video_settings += [
                     '-vcodec', 'libx264',
                     '-flags', '+loop+mv4',

pandora/settings.py

@@ -151,6 +151,7 @@ LOGGING = {
 
 AUTH_PROFILE_MODULE = 'user.UserProfile'
 AUTH_CHECK_USERNAME = True
+AVCONV_VERSION = 0
 
 #=========================================================================
 #Pan.do/ra related settings settings