changeset 0:b6466fff5800 draft default tip

Initial version

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/video_datatypes/datatypes_conf.xml	Tue Jul 22 16:22:52 2014 -0500
@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<datatypes>
+  <datatype_files>
+    <datatype_file name="video.py"/>
+  </datatype_files>
+  <registration>
+    <datatype extension="mp4" type="galaxy.datatypes.video:Mp4" display_in_upload="true"/>
+    <datatype extension="flv" type="galaxy.datatypes.video:Flv" display_in_upload="true"/>
+  </registration>
+  <sniffers>
+    <!--<sniffer type="galaxy.datatypes.video:Mp4"/>-->
+  </sniffers>
+</datatypes>

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/video_datatypes/readme.rst	Tue Jul 22 16:22:52 2014 -0500
@@ -0,0 +1,43 @@
+Video Datatypes
+===============
+
+Please feel free to submit PRs/bug reports.
+
+Requirements
+============
+
+Requires ffmpeg for fps/resolution detection
+
+::
+
+    sudo apt-get install ffmpeg
+
+Formats Supported
+=================
+
+-  mp4
+-  flv
+
+Features
+========
+
+-  Metadata is sourced for video resolution and fps.
+-  Sniffing is currently unavailable
+
+Licence
+=======
+
+Video datatypes for Galaxy Copyright (C) 2014 Eric Rasche
+
+This program is free software: you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation, either version 3 of the License, or (at your
+option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program. If not, see http://www.gnu.org/licenses/.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/video_datatypes/video.py	Tue Jul 22 16:22:52 2014 -0500
@@ -0,0 +1,72 @@
+"""
+Video classes
+"""
+
+import logging
+#import magic
+import subprocess, re
+
+import data
+from galaxy.datatypes.binary import Binary
+from galaxy.datatypes.metadata import MetadataElement
+log = logging.getLogger(__name__)
+
+# Currently these supported binary data types must be manually set on upload
+
+#class Video( data.Data ):
+class Video( Binary ):
+
+    MetadataElement( name="resolution_x", default=0, desc="Width of video stream", readonly=True, visible=True, optional=True, no_value=0 )
+    MetadataElement( name="resolution_y", default=0, desc="Height of video stream", readonly=True, visible=True, optional=True, no_value=0 )
+    MetadataElement( name="fps", default=0, desc="FPS of video stream", readonly=True, visible=True, optional=True, no_value=0 )
+
+    def _get_resolution(self, filename):
+        video_stream = re.compile(r'Stream #(?P<str_maj>\d+)\.(?P<str_min>\d+).*: Video: (?P<vid_codec>[^,]*), (?P<colorspace>[^,]*), (?P<resx>\d+)x(?P<resy>\d+) [^,]*, (?P<data_rate>\d+) (?P<data_rate_unit>.b/s), (?P<fps>\d+) fps')
+        audio_stream= re.compile(r'Stream #(?P<str_maj>\d+)\.(?P<str_min>\d+).*: Audio: (?P<audio_codec>[^,]*), (?P<freq>\d+)Hz, (?P<channels>[^,]+), [^,]*, (?P<data_rate>\d+) (?P<data_rate_unit>.b/s)')
+        #Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/esr/Documents/galaxy-galaxy-dist-d3b1f484c4b6/Juli - Elektrisches Gefhl-ft8DwXUxaB8.mp4':
+        #Metadata:
+            #major_brand     : mp42
+            #minor_version   : 0
+            #compatible_brands: isommp42
+            #creation_time   : 2014-03-07 06:55:07
+        #Duration: 00:03:43.81, start: 0.000000, bitrate: 555 kb/s
+            #Stream #0.0(und): Video: h264 (Constrained Baseline), yuv420p, 480x360 [PAR 1:1 DAR 4:3], 457 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
+            #Stream #0.1(und): Audio: aac, 44100 Hz, stereo, s16, 95 kb/s
+            #Metadata:
+            #creation_time   : 2014-03-07 06:55:07
+
+
+        p = subprocess.Popen(['ffmpeg', '-i', filename],
+                             stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        stdout, stderr = p.communicate()
+        match = video_stream.search(stderr)
+        if match:
+            x = match.group('resx')
+            y = match.group('resy')
+            fps = match.group('fps')
+        else:
+            x = y = fps = 0
+        return x, y, fps
+
+    def set_meta(self, dataset, **kwd):
+        (x, y, fps) = self._get_resolution( dataset.file_name )
+        dataset.metadata.resolution_y = y
+        dataset.metadata.resolution_x = x
+        dataset.metadata.fps = fps
+
+class Mp4( Video ):
+    file_ext = "mp4"
+
+    def sniff(self, filename):
+        with magic.Magic(flags=magic.MAGIC_MIME_TYPE) as m:
+            return m.id_filename(filename) is 'video/mp4'
+Binary.register_unsniffable_binary_ext("mp4")
+
+class Flv( Video ):
+    file_ext = "flv"
+
+    def sniff(self, filename):
+        with magic.Magic(flags=magic.MAGIC_MIME_TYPE) as m:
+            return m.id_filename(filename) is 'video/x-flv'
+
+Binary.register_unsniffable_binary_ext("flv")