def download_video(vid,folder):
logr = setup_vid_logger(vid)
try:
vidmeta = load_video_meta(vid)
except ytd_exception_meta as e:
if (e.errtype == "PAGE_FETCH_ERR"):
logr.critical("\t{} :{}".format(e.errmsg,e.msgstr))
if (e.errtype == "YOUTUBE_ERROR"):
logr.critical(e.errmsg)
logr.info("-"*45+"\n"+e.msgstr+"\n"+"-"*45)
if (e.errtype == "BAD_PAGE") :
logr.critical("\t"+e.errmsg)
print_pretty(logr,"Parsing failed: vid_meta "+"="*20,e.vidmeta)
if (e.errtype == "NO_STREAMS") :
logr.info("\tTitle:'%s'\n\tAuthor:'%s'",e.vidmeta['title'],e.vidmeta['author'])
logr.critical("\t"+e.errmsg)
print_pretty(logr,"Parsing failed: vid_meta "+"="*20,e.vidmeta)
if(deep_debug):
write_to_file(vid+".html",e.page['contents'])
return
print_pretty(logr,"Parsing successful: vid_meta "+"="*20,vidmeta)
smap = vidmeta['stream_map']
sm = smap['std'] + smap['adp_v'] + smap['adp_a'] + smap['caption']
logr.debug("= Available Streams: "+"="*25+"\n"+"\n".join(map(smap_to_str,sm)))
vidmeta['select_map'] = sl = select_best_stream(smap)
logr.debug("= Selected Streams: "+"="*25+"\n"+"\n".join(map(smap_to_str,sl))+"\n")
# stream_map, select_map can be public elements so that they can be logged and print outside.
logr.info("\tTitle:'%s'\n\tAuthor:'%s'",vidmeta['title'],vidmeta['author'])
download_streams(vidmeta,folder)
download_caption(vidmeta,folder)
logr.info("\tFetch Complete @ %s ----------------",str(datetime.datetime.now()))
return
def parse_watch_page(wpage):
page = wpage["contents"]
arg_keys = {
"length_seconds",
"loudness",
"timestamp",
"host_language",
"avg_rating",
"view_count",
"thumbnail_url",
"fmt_list",
"adaptive_fmts",
"url_encoded_fmt_stream_map",
"caption_tracks",
"caption_translation_languages",
}
prop_keys = {
"og:title": "title",
"og:description": "description",
"og:type": "type",
"og:url": "url",
"og:image": "fullimage_url",
"og:video:url": "embed_url",
}
iprop_keys = {
"videoId": "vid",
"channelId": "chid",
"datePublished": "datePublished",
"genre": "genre",
"regionsAllowed": "regionsAllowed",
"isFamilyFriendly": "isFamilyFriendly",
"paid": "paid",
}
vid_meta = dict()
# extract dom tree of HTML Page
tree = html.fromstring(page)
# extract player script
script = tree.xpath('//script[contains(.,"ytplayer")]/text()')
player_script = extract_player_args(script)
if player_script == "":
plerror = " ".join(map(str.strip, tree.xpath('//div[@id="player-unavailable"]//text()')))
raise ytd_exception_meta("YOUTUBE_ERROR", wpage, vid_meta, plerror)
# extract player args from the player script
arg_list = json.loads(player_script)
args = arg_list["args"] if arg_list.has_key("args") else None
# populate the attributes
vid_meta["author"] = " ".join(map(str.strip, tree.xpath("//div[@class='yt-user-info']//text()"))).strip()
vid_meta["author_url"] = default_hurl + tree.xpath("//div[@class='yt-user-info']/a/@href")[0]
vid_meta["keywords"] = tree.xpath("//meta[@name='keywords']/@content")[0].split(",")
for k in prop_keys:
v = tree.xpath("//meta[@property='" + k + "']/@content")
vid_meta[prop_keys[k]] = v[0] if (len(v) > 0) else ""
for k in iprop_keys:
v = tree.xpath("//meta[@itemprop='" + k + "']/@content")
vid_meta[iprop_keys[k]] = v[0] if (len(v) > 0) else ""
if args != None:
vid_meta["player_args"] = True # we don't quite need this but still!
for k in arg_keys:
vid_meta[k] = args[k] if (args.has_key(k)) else ""
vid_meta["country"] = args["cr"] if (args.has_key("cr")) else ""
vid_meta["has_caption"] = True if vid_meta["caption_tracks"] != "" else False
f = args["fmt_list"].split(",")
vid_meta["max_res"] = f[0].split("/")[1] if (f != None) else 0
vid_meta["filesize"] = 0 # right now we don't know
else:
vid_meta["player_args"] = False
vid_meta["max_res"] = 0
vid_meta["has_caption"] = False
write_to_file(vid_meta["vid"] + ".html", player_script)
return vid_meta
