diff --git a/ox/file.py b/ox/file.py
index 177ca1f..ec9da4b 100644
--- a/ox/file.py
+++ b/ox/file.py
@@ -159,51 +159,10 @@ def avinfo(filename, cached=True):
     if os.path.getsize(filename):
         if find_executable('ffprobe'):
             return ffprobe(filename)
-        ffmpeg2theora = cmd('ffmpeg2theora')
-        p = subprocess.Popen([ffmpeg2theora], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        stdout, error = p.communicate()
-        stdout = stdout.decode('utf-8')
-        version = stdout.split('\n')[0].split(' - ')[0].split(' ')[-1]
-        if version < '0.27':
-            raise EnvironmentError('version of ffmpeg2theora needs to be 0.27 or later, found %s' % version)
-        p = subprocess.Popen([ffmpeg2theora, '--info', filename],
-                             stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        stdout, error = p.communicate()
-        stdout = stdout.decode('utf-8')
-        try:
-            info = json.loads(stdout)
-        except:
-            # remove metadata, can be broken
-            reg = re.compile('"metadata": {.*?},', re.DOTALL)
-            stdout = re.sub(reg, '', stdout)
-            info = json.loads(stdout)
-        if 'video' in info:
-            for v in info['video']:
-                if 'display_aspect_ratio' not in v and 'width' in v:
-                    v['display_aspect_ratio'] = '%d:%d' % (v['width'], v['height'])
-                    v['pixel_aspect_ratio'] = '1:1'
-        if len(info.get('audio', [])) > 1:
-            if 'metadata' in info['audio'][0]:
-                for stream in info['audio']:
-                    language = stream.get('metadata', {}).get('language')
-                    if language and language != 'und':
-                        stream['language'] = language[0]
-            else:
-                ffmpeg = cmd('ffmpeg')
-                p = subprocess.Popen([ffmpeg, '-i', filename], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-                stdout, stderr = p.communicate()
-                stderr = stderr.decode('utf-8')
-                languages = [re.compile('\((.+?)\):').findall(l) for l in stderr.split('\n') if 'Stream' in l and 'Audio' in l]
-                if len(languages) == len(info['audio']):
-                    for i, stream in enumerate(info['audio']):
-                        language = languages[i]
-                        if language and language[0] != 'und':
-                            stream['language'] = language[0]
-        fix_coverart(info)
-        return info
-
+        raise EnvironmentError('could to find ffprobe. please install ffmpeg')
     return {'path': filename, 'size': 0}
 
+
 def ffprobe(filename):
     p = subprocess.Popen([
         cmd('ffprobe'),