cb
filename
filename
supported format placeholders:{video_id}.{suffix}
by default.file_name
filename
.fmt
fmt
fmt_list
suffix
fmt
above).title
user
video_id
video_url
fmt
above).video_url_map
video_url_map
has one key/value pair for each available format, where the key is the format identifier (can be used as fmt
parameter for 'download', for example) and the value is a hash reference with the following data:fmt
resolution
suffix
url