old_contents: #!/usr/bin/env python
  
  __all__ = ['cntv_download', 'cntv_download_by_id']
  
  from ..common import *
  
  import json
  import re
  
  
  def cntv_download_by_id(id, title = None, output_dir = '.', merge = True, info_only = False):
      assert id
      info = json.loads(get_html('http://vdn.apps.cntv.cn/api/getHttpVideoInfo.do?pid=' + id))
      title = title or info['title']
      video = info['video']
      alternatives = [x for x in video.keys() if x.endswith('hapters')]
      #assert alternatives in (['chapters'], ['lowChapters', 'chapters'], ['chapters', 'lowChapters']), alternatives
      chapters = video['chapters'] if 'chapters' in video else video['lowChapters']
      urls = [x['url'] for x in chapters]
      ext = r1(r'\.([^.]+)$', urls[0])
      assert ext in ('flv', 'mp4')
      size = 0
      for url in urls:
          _, _, temp = url_info(url)
          size += temp
  
      print_info(site_info, title, ext, size)
      if not info_only:
          # avoid corrupted files - don't merge
          download_urls(urls, title, ext, size, output_dir = output_dir, merge = False)
  
  def cntv_download(url, output_dir = '.', merge = True, info_only = False, **kwargs):
      if re.match(r'http://tv\.cntv\.cn/video/(\w+)/(\w+)', url):
          id = match1(url, r'http://tv\.cntv\.cn/video/\w+/(\w+)')
      elif re.match(r'http://\w+.cctv.com/\d+/\d+/\d+/\w+.shtml', url) or re.match(r'http://\w+.cntv.cn/\d+/\d+/\d+/\w+.shtml', url):
          html = get_content(url)
          id = match1(html, r'guid = \"(.+)\"')
      elif re.match(r'http://\w+\.cntv\.cn/(\w+/\w+/(classpage/video/)?)?\d+/\d+\.shtml', url) or \
           re.match(r'http://\w+.cntv.cn/(\w+/)*VIDE\d+.shtml', url) or \
           re.match(r'http://(\w+).cntv.cn/(\w+)/classpage/video/(\d+)/(\d+).shtml', url): 
          id = r1(r'videoCenterId","(\w+)"', get_html(url))
      elif re.match(r'http://xiyou.cntv.cn/v-[\w-]+\.html', url):
          id = r1(r'http://xiyou.cntv.cn/v-([\w-]+)\.html', url)
      else:
          raise NotImplementedError(url)
  
      cntv_download_by_id(id, output_dir = output_dir, merge = merge, info_only = info_only)
  
  site_info = "CNTV.com"
  download = cntv_download
  download_playlist = playlist_not_supported('cntv')
  
new_contents: #!/usr/bin/env python
  
  __all__ = ['cntv_download', 'cntv_download_by_id']
  
  from ..common import *
  
  import json
  import re
  
  
  def cntv_download_by_id(id, title = None, output_dir = '.', merge = True, info_only = False):
      assert id
      info = json.loads(get_html('http://vdn.apps.cntv.cn/api/getHttpVideoInfo.do?pid=' + id))
      title = title or info['title']
      video = info['video']
      alternatives = [x for x in video.keys() if x.endswith('hapters')]
      #assert alternatives in (['chapters'], ['lowChapters', 'chapters'], ['chapters', 'lowChapters']), alternatives
      chapters = video['chapters'] if 'chapters' in video else video['lowChapters']
      urls = [x['url'] for x in chapters]
      ext = r1(r'\.([^.]+)$', urls[0])
      assert ext in ('flv', 'mp4')
      size = 0
      for url in urls:
          _, _, temp = url_info(url)
          size += temp
  
      print_info(site_info, title, ext, size)
      if not info_only:
          # avoid corrupted files - don't merge
          download_urls(urls, title, ext, size, output_dir = output_dir, merge = False)
  
  def cntv_download(url, output_dir = '.', merge = True, info_only = False, **kwargs):
      if re.match(r'http://tv\.cntv\.cn/video/(\w+)/(\w+)', url):
          id = match1(url, r'http://tv\.cntv\.cn/video/\w+/(\w+)')
      elif re.match(r'http://\w+\.cntv\.cn/(\w+/\w+/(classpage/video/)?)?\d+/\d+\.shtml', url) or \
           re.match(r'http://\w+.cntv.cn/(\w+/)*VIDE\d+.shtml', url) or \
           re.match(r'http://(\w+).cntv.cn/(\w+)/classpage/video/(\d+)/(\d+).shtml', url) or \
           re.match(r'http://\w+.cctv.com/\d+/\d+/\d+/\w+.shtml', url) or \
           re.match(r'http://\w+.cntv.cn/\d+/\d+/\d+/\w+.shtml', url): 
          id = r1(r'videoCenterId","(\w+)"', get_html(url))
      elif re.match(r'http://xiyou.cntv.cn/v-[\w-]+\.html', url):
          id = r1(r'http://xiyou.cntv.cn/v-([\w-]+)\.html', url)
      else:
          raise NotImplementedError(url)
  
      cntv_download_by_id(id, output_dir = output_dir, merge = merge, info_only = info_only)
  
  site_info = "CNTV.com"
  download = cntv_download
  download_playlist = playlist_not_supported('cntv')
  
subject: reduce code