Now fills the original info for a movie file

Now detects if a file is not a video file and shows an error

Now the interface_manager class can manage treelists

src/devede/mplayer_detector.py

@@ -0,0 +1,119 @@
+# Copyright 2014 (C) Raster Software Vigo (Sergio Costas)
+#
+# This file is part of DeVeDe-NG
+#
+# DeVeDe-NG 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.
+#
+# DeVeDe-NG 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/>
+
+import subprocess
+import devede.configuration_data
+
+class mplayer_detector:
+
+    supports_analize = True
+    supports_play = True
+    supports_convert = False
+    supports_menu = False
+    display_name = "MPLAYER"
+
+    @staticmethod
+    def check_is_installed():
+        handle = subprocess.Popen(["mplayer","-v"], stdout = subprocess.PIPE, stderr = subprocess.PIPE)
+        (stdout, stderr) = handle.communicate()
+        if 0==handle.wait():
+            return True
+        else:
+            return False
+
+    def __init__(self):
+
+        self.config = devede.configuration_data.configuration.get_config()
+
+    def get_film_data(self,movie):
+        """ processes a file, refered by the FILE_MOVIE movie object, and fills its
+            main data (resolution, FPS, length...) """
+
+        video = self.get_film_data2(movie, True)
+
+        if (video):
+            self.get_film_data2(movie, False)
+            return False # no error
+        else:
+            return True # the file is not a video file; maybe an audio-only file, or another thing
+
+    def get_film_data2(self,movie,check_audio):
+
+        if (check_audio):
+            frames = "0"
+        else:
+            frames = "1"
+
+        command_line = ["mplayer","-loop","1","-identify", "-vo", "null", "-ao", "null", "-frames", frames , movie.file_name]
+
+        handle = subprocess.Popen(command_line, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
+        (stdout, stderr) = handle.communicate()
+
+        minimum_audio=-1
+        movie.audio_list=[]
+        movie.audio_streams = 0
+        movie.video_streams = 0
+        movie.original_width = 0
+        movie.original_height = 0
+
+        for line in str(stdout).split("\\n"):
+            #line=self.remove_ansi(line)
+            if line == "":
+                continue
+            position=line.find("ID_")
+            if position==-1:
+                continue
+            line=line[position:]
+            if (not check_audio):
+                if line[:16]=="ID_VIDEO_BITRATE":
+                    movie.original_videorate=int(int(line[17:])/1000)
+                if line[:14]=="ID_VIDEO_WIDTH":
+                    movie.original_width=int(line[15:])
+                if line[:15]=="ID_VIDEO_HEIGHT":
+                    movie.original_height=int(line[16:])
+                if line[:15]=="ID_VIDEO_ASPECT":
+                    movie.original_aspect_ratio=float(line[16:])
+                if line[:12]=="ID_VIDEO_FPS":
+                    movie.original_fps=float(line[13:])
+                if line[:16]=="ID_AUDIO_BITRATE":
+                    movie.original_audiorate=int(int(line[17:])/1000)
+                if line[:13]=="ID_AUDIO_RATE":
+                    movie.original_audiorate_uncompressed=int(line[14:])
+                if line[:9]=="ID_LENGTH":
+                    movie.original_length=int(float(line[10:]))
+
+            if line[:11]=="ID_VIDEO_ID":
+                movie.video_streams+=1
+            if line[:11]=="ID_AUDIO_ID":
+                movie.audio_streams+=1
+                audio_track=int(line[12:])
+                if (minimum_audio == -1) or (minimum_audio>audio_track):
+                    minimum_audio=audio_track
+                movie.audio_list.append(audio_track)
+
+        movie.original_size = str(movie.original_width)+"x"+str(movie.original_height)
+        if (movie.original_aspect_ratio == None) or (movie.original_aspect_ratio <= 1.0):
+            if (movie.original_height != 0):
+                movie.original_aspect_ratio = (float(movie.original_width))/(float(movie.original_height))
+
+        if (movie.original_aspect_ratio != None):
+            movie.original_aspect_ratio = (float(int(movie.original_aspect_ratio*1000.0)))/1000.0
+
+        if (movie.video_streams == 0):
+            return False
+        else:
+            return True