YouTube is an American video-sharing website founded in 2005 that allows users to upload, view, rate, share, and comment on videos. It has become the second largest search engine behind Google. Users can upload various types of content including music videos, TV clips, movie trailers, and user-generated videos. In 2006, Google purchased YouTube for $1.65 billion. The site earns money through various types of ads displayed before, during, and after videos are played. While YouTube provides educational benefits, it can also negatively impact privacy and spread misinformation if not properly monitored and regulated.
3. • YouTube is an American video-sharing website
• YouTube has the second-largest search engine in the
world, behind Google
• YouTube provides a simple way for people to store
videos online and share them with others.
• The site allows users to upload, view, rate, share, and
comment on videos, available content includes video
clips, TV show clips, music videos, audio
recordings, movie trailers, and other content such
as video blogging, short original videos, and educational
videos.
4. • Founding (2005)
• In February 2005, three PayPal employees launched the
beta test version of a Web site called YouTube.
• The domain name "YouTube.com" was activated on
February 14, 2005, and during the next few months the
website was developed
• They designed the site to let people share videos with
the rest of the world.
• November 2006, Internet search engine goliath Google
purchased YouTube for $1.65 billion.
10. SOURCES
• Display ads: Appears to the right of the future
video and video suggestions list. For larger
players this ad may appear below the player.
• Overlay ads: Semi transparent overlay ads, that
appear on the lower 20% portion of your video.
• Skippable video ads: Skippabble video ads
allow viewers to skip ads after 5 seconds, if they
choose, inserted before during, or after the main
video
• Non-skippable video ads: Long non-skippable
video ads may be upto 30 seconds long.
11. • Sponsored Cards: Sponsored card display content
that may be relevant to your video such as, products
featured in the video, viewers will see a teaser for
the card for a few seconds, they can also click the
icon in the top right corner of the video to browse
the cards.
• Bumper ads: Non skippable ads of up to six
seconds that must be watched before your video
can be viewed
13. YouTube videos have been a useful source of
educational content, it is a free web based tool,
and the impact has been important based on
students' performance. Educators have used
YouTube videos in fields such as medicinial,
engineering,nursing,dancing and music and
have proven to be an effective tool to enhance
students learning and engagement.
14. YouTube’s influence can be a positive or negative
impact on our society by the diverse of YouTube
videos. Many YouTubers upload opinionated
videos on current events or topics from their
perspective. If viewers believe and/or agree with
the content of the video, they will most likely
become influenced, regardless or not if the topic
is positive or negative. Even though some videos
on YouTube are not made to persuade or
entertain people, the majority of them have a
purpose.
15. Ten billion views a month is a number th
at speaks for itself: Online video is an e
xplosive new medium, and YouTube
has proven to be dominant in this arena.
And while for some the site provides me
re entertainment, for others, YouTube is
proving to be a valuable research tool
, as well as a medium for expression or
documentation of aberrant behaviour.
16.
17. The fact is that privacy can easily be exposed on Yo
uTube without permission or the knowled
ge that it was uploaded. Private videos, embarrassin
g videos, crime, rape and death can be uploaded
to YouTube for the world to watch without permissio
n and privacy can be breached in an hour. It leads t
o a situation in which a person's personal life can b
e filmed andshared with the whole world to watch on
YouTube, it can lead to ruining their social life, cybe
r bullying and revealing secrets about themwithout th
em knowing are allowing it.
19. • YouTube has a set of community guidelines aimed to
reduce abuse of the site's features. Generally prohibited
material includes sexually explicit content, videos of
animal abuse, shock videos, content uploaded without
copyright holders consent, hate speech and spam.
21. • The interface of the website is available with
localized versions in 88 countries.
• The YouTube interface suggests which local version
should be chosen on the basis of the IP address of
the user.
23. • In September 2012, countries with standing national
bans on YouTube include China, Iran.
24. YouTube is blocked for a variety
of reasons
• Limiting public exposure to contact that may ignite
social or political unrest
• Preventing criticism of a ruler, government officials,
religion or religious leader
• Violation of national laws
• Preventing access to videos judged to be
inappropriate for youth
• Reducing distraction at work or school
25. Several countries blocked access
to the YouTube
• Iran
• Thailand
• Australia
• China
• Pakistan
• Afghanistan, Bangladesh, Russia
44. ON SYSTEM
• Go to your Video Manager.
• Find the video you want to change, then
click Edit.
• In the "Privacy Settings" drop-down menu,
choose your setting:
o Public
o Unlisted
o Private
• Click Save changes.
45. On Android or IOS
• Sign in to YouTube on your Android/IOS device.
• Tap Account .
• Tap My videos.
• Next to the video you want to change, tap the menu
icon .
• Tap Edit.
• In the Privacy drop-down menu, choose your
setting:
o Public
o Unlisted
o Private
• Tap the arrow at the top to save changes.
51. Formats of YouTube
Two types of formats in YouTube:
A. Video Formats
1. Resolution
2. Codec
3. Aspect Ratio
4. Frame Rate
5. Bitrate
B. Audio Formats
1. Codec
2. Sampling Rate
3. Channels
52. Video Formats Of
YouTube
1. Resolution: There is no required minimum
resolution - in general the higher resolution the better
and HD resolution is preferred. For older content,
lower resolution is unavoidable.
2. Codec: Most suitable codecs for YouTube are
H.264, MPEG-2 or MPEG-4. These codecs are used
in most modern videos, so you’ll hardly need to
change this parameter.
53. Video Formats Of
YouTube
3. Aspect Ratio: YouTube uses one of the standard aspect
ratios: 4:3 or 16:9. When the video is uploaded to the site,
YouTube will either leave it as-is (for 16:9) or add vertical
black bars (for 4:3). Don’t add horizontal black bars before
uploading a video. If you do it, black bars will be all around
your video and it will look rather horrible.
4. Frame Rate: The frame rate of the original video should
be maintained without re-sampling. In particular pull-down
and other frame rate re-sampling techniques are strongly
discouraged.
54. Video Format Of
YouTube
5. Bitrate: As bitrate highly rests upon codec, there is no
recommendation or minimum value. You are suggested
to optimize video for resolution, aspect ratio and frame
rate rather than bitrate.
55. • Windows Media Video (WMV)
• 3GP (Cell Phones): A multimedia container format defined by the Third
Generation Partnership Project for 3G UMTS multimedia services.
• AVI (Windows): Audio Video Interleaved, a kind of video format
• MOV (mac): The QuickTime multimedia file format
• MP4 (iPod/PSP): A multimedia container format standard specified as a
part of MPEG-4.
• MPEG: The Moving Picture Experts Group, a kind of video format
• FLV (Adobe Flash): Flash Video, a kind of video format
• SWF : Shockwave Flash
• MKV (h.264): An free container format that holds an unlimited number
of video, audio, picture, or subtitle tracks in one file
Some Supportive
Formats of YouTube
56. Audio Formats of
YouTube
1. Codec: MP3 or AAC preferred
2. Sampling Rate: 44.1kHz sampling rate and the
higher bitrate possible, but no less than 192 kbps.
3. Channels: 2 (stereo)
57. Qualities of YouTube
Two types of qualities in YouTube:
1. Video quality
YouTube has some other factors that determine video
quality:
• Video player size: By default, the quality setting will be
on “Auto” and YouTube will use the highest quality based
on your video player size.
• Quality of the original uploaded video: For example, if
the video was recorded in standard definition, it will not
be available in high definition.
58. How to Change video
quality in YouTube
• Change the video quality by going to Settings in the
corner of the video player, and selecting your preferred
quality.
• On mobile devices, adjust quality settings by tapping
Menu , then Settings . This option isn’t available on all
devices (e.g. TV/game consoles), or connections (e.g.
iOS on a cellular network).
• Choosing lower video quality (such as 240p and 360p)
will make videos start more quickly. The video player will
remember this for future playbacks.
59. Audio Quality of
YouTube
YouTube Audio Quality Bitrate Used For 360p, 480p, 720p,
1080p, 1440p, 2160p.
YouTube streams video and audio separately and the website
player combines them on the fly. Due to this, the audio bitrate is
not affected by video quality like in the past. The audio you hear
during a YouTube video will usually be either 126 kbps AAC in an
MP4 container or 155-165 kbps Opus in a WebM container,
regardless of whether you're playing 360p, 1080p, or any other
resolution. Changing video quality will not impact the audio
stream.
60. In 2013, YouTube play a specific audio bitrate
depending on the video resolution selected. For
example: 240p would get 64 kbps MP3, 360p would
get 128 kbps AAC, and 720p would get 192 kbps
AAC. For a full list of the legacy bitrates that YouTube
used.
There are some few tables that shows legacy audio
quality of YouTube:
61. From July 2012 to some time in 2013,
YouTube used these bitrates, as long as the
originally-uploaded video had a high-
enough bitrate or was lossless.Resolution Audio Bit Rate Compression
Original 192 kbps AAC
1080p 192 kbps AAC
720p 192 kbps AAC
480p 128 kbps AAC
360p 128 kbps AAC
240p 64 kbps MP3
62. Prior to July 2012, YouTube used these
audio qualities:
Resolution Audio Bit Rate Compression
Original 152 kbps AAC
1080p 152 kbps AAC
720p 152 kbps AAC
480p 128 kbps AAC
360p 128 kbps AAC
240p 64 kbps MP3
63. Prior to May 2011, YouTube used these
audio qualities:
Resolution Audio Bit Rate Compression
1080p 128 kbps AAC
720p 128 kbps AAC
480p 128 kbps AAC
360p 128 kbps AAC
240p 64 kbps MP3
64. Prior to March 2011, YouTube used
these audio qualities for several years:
Resolution Audio Bit Rate Compression
1080p 128 kbps AAC
720p 128 kbps AAC
480p 96 kbps AAC
360p 96 kbps AAC
240p 64 kbps MP3
