+ def can_merge(self):
+ # TODO: figure out merge-capable ffmpeg version
+ if self.basename != 'avconv':
+ return True
+
+ required_version = '10-0'
+ if is_outdated_version(
+ self._versions[self.basename], required_version):
+ warning = ('Your copy of %s is outdated and unable to properly mux separate video and audio files, '
+ 'youtube-dl will download single file media. '
+ 'Update %s to version %s or newer to fix this.') % (
+ self.basename, self.basename, required_version)
+ if self._downloader:
+ self._downloader.report_warning(warning)
+ return False
+ return True
+