Http Live Streaming Intro

Feb 28, 20123 likes2,747 views

Vonbo

a super simple sample of using http live streaming

Intro

Streaming audio or video to iPhone, iPod
touch, iPad, or Apple TV

Streaming live events without special server
software

Sending video on demand with encryption
and authentication

12年2月29日星期三 2

Step By Step

Download segment tools from apple (https:/ /
developer.apple.com/downloads/index.action
search “HTTP Live Streaming Tools”)

Segment original ?le into several pieces (.ts
?le) every 5 ~ 10 seconds

Generate a manifest ?le (.m3u8 ?le) which
includes all the ts ?le name

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Sample - Step 1 - Segment
$ cd /User/fengbo/project/testhsl/bgrs

$ ls

rwarren.mp4 Use the media?lesegmenter
$ media?lesegmenter rwarren.mp4 command
Feb 29 2012 11:22:36.949: Using ?oating point is not backward compatible to
iOS 4.1 or earlier devices

Feb 29 2012 11:22:36.950: Processing ?le /Users/fengbo/project/testhsl/bgrs/
rwarren.mp4

Feb 29 2012 11:22:37.577: Finalized ?leSequence0.ts

Feb 29 2012 11:22:37.577: segment bitrate 1.30908e+06 is new max

Feb 29 2012 11:22:37.587: Finalized ?leSequence1.ts

Feb 29 2012 11:22:37.600: Finalized ?leSequence2.ts

Feb 29 2012 11:22:37.618: Finalized ?leSequence3.ts

....

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Sample - Step 1 - Segment

$ ls

?leSequence0.ts ?leSequence115.ts
?leSequence19.ts ?leSequence36.ts
?leSequence53.ts ?leSequence70.ts
?leSequence88.ts ... prog_index.m3u8

The manifest ?le

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Sample - Step 1 - Segment

prog_index.m3u8

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Sample - Step 2 - Deploy

Con?g Apache

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Sample - Step 2 - Deploy
Write HTML page

cd /User/fengbo/project/testhsl

vim index.html

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Sample - Step 2 - View
Open in Safari (Current can not work in Google Chrome)

It works !!!
12年2月29日星期三 10

End

For more, visit :

https://developer.apple.com/library/mac/
#documentation/NetworkingInternet/
Conceptual/StreamingMediaGuide/
Introduction/Introduction.html#/ /apple_ref/
doc/uid/TP40008332-CH1-
DontLinkElementID_39

12年2月29日星期三 11

This document provides an overview of Apple's HTTP Live Streaming (HLS) protocol for dynamically adapting video streaming to network conditions. It describes the basics of HLS including how content is prepared and served, how clients play the stream by obtaining playlist files that list available media segments, and new tags defined by the HLS protocol such as EXT-X-TARGETDURATION and EXT-X-MEDIA-SEQUENCE. It also compares HLS to other adaptive streaming protocols and shows examples of analyzing an HLS stream with Wireshark.

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This document discusses adaptive streaming standards and technologies. It begins with an overview of the importance of multimedia delivery over the internet, with streaming video and audio accounting for over 70% of internet traffic. It then discusses key standards for adaptive streaming, including HTTP Dynamic Streaming (HDS), HTTP Live Streaming (HLS), Smooth Streaming, and MPEG Dynamic Adaptive Streaming over HTTP (DASH). DASH has seen the most adoption by services like Netflix and YouTube. The document dives into details of DASH including its data model, media presentation descriptions, and segment formats. It also covers quality of experience considerations and methods for evaluating streaming performance, including both objective and subjective testing.

Live streaming of video and subtitles with MPEG-DASHCyril Concolato

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MPEG Dynamic Adaptive Streaming over HTTP (DASH) is a new streaming standard that has been recently ratified as an international standard (IS). In comparison to other streaming systems, e.g., HTTP progressive download, DASH is able to handle varying bandwidth conditions providing smooth streaming. Furthermore, it enables NAT and Firewall traversal, flexible and scalable deployment as well as reduced infrastructure costs due to the reuse of existing Internet infrastructure components, e.g., proxies, caches, and Content Distribution Networks (CDN). Recently, the Hypertext Transfer Protocol Bis (httpbis) working group of the IETF has officially started the development of HTTP 2.0. Initially three major proposals have been submitted to the IETF i.e., Googles' SPDY, Microsofts' HTTP Speed+Mobility and Network-Friendly HTTP Upgrade, but SPDY has been chosen as working draft for HTTP 2.0. In this paper we implemented MPEG-DASH over HTTP 2.0 (i.e., SPDY), demonstrating its potential benefits and drawbacks. Moreover, several experimental evaluations have been performed that compare HTTP 2.0 with HTTP 1.1 and HTTP 1.0 in the context of DASH. In particular, the protocol overhead, the performance for different round trip times, and DASH with HTTP 2.0 in a lab test scenario has been evaluated in detail.

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This document discusses Dynamic Adaptive Streaming over HTTP (DASH), a new standard being developed by MPEG for streaming media over HTTP. It provides an overview of DASH and related work in HTTP streaming. DASH aims to standardize HTTP streaming by defining formats for manifest files and media segments. The document describes evaluations of submissions to the MPEG call for proposals and a prototype DASH implementation in the VLC media player. DASH is expected to be an emerging standard for efficient delivery of media over HTTP.

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MPEG DASH – Tomorrow's Format Today by Nicolas Weil Senior Solutions Architect, Akamai Technologies & Will Law, Chief Architect, Media Cloud Engineering, Akamai Technologies As an open standard designed to help simplify video delivery across connected devices, MPEG-DASH is continuing to gain momentum in the OTT, broadcast and wireless industries. Join Akamai's DASH experts for a discussion on what differentiates the emerging standard from legacy formats along with a demonstration showing the ease of deploying DASH playback across devices. The panel will also highlight current deployments, offer a review of the industry and provide a three-year outlook. Akamai Edge is the premier event for Internet innovators, tech professionals and online business pioneers who together are forging a Faster Forward World. At Edge, the architects, experts and implementers of the most innovative global online businesses gather face-to-face for an invaluable three days of sharing, learning and together pushing the limits of the Faster Forward World. Learn more at: http://www.akamai.com/edge

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Dynamic Adaptive Streaming over HTTP (DASH) is an adaptive bitrate streaming technique that enables high-quality streaming of media content over the Internet delivered from conventional HTTP web servers. It works by breaking the media content into a sequence of small HTTP-based file segments, each segment containing a short interval of playback time of the overall content. The presentation is described through a MPD manifest file that contains information about the available adaptations sets and representations of the media content. The client can then select the most appropriate representation based on available bandwidth, device capabilities, and user preferences.

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Dynamic Adaptive Streaming over HTTP (DASH)Alpen-Adria-Universit?t

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Http Live Streaming Intro

1. Using HTTP Live Streaming twitter:@vonbo 29/02/2012 12年2月29日星期三 1

2. Intro Streaming audio or video to iPhone, iPod touch, iPad, or Apple TV Streaming live events without special server software Sending video on demand with encryption and authentication 12年2月29日星期三 2

3. Intro 12年2月29日星期三 3

4. Step By Step Download segment tools from apple (https:/ / developer.apple.com/downloads/index.action search “HTTP Live Streaming Tools”) Segment original ?le into several pieces (.ts ?le) every 5 ~ 10 seconds Generate a manifest ?le (.m3u8 ?le) which includes all the ts ?le name 12年2月29日星期三 4

5. Sample - Step 1 - Segment $ cd /User/fengbo/project/testhsl/bgrs $ ls rwarren.mp4 Use the media?lesegmenter $ media?lesegmenter rwarren.mp4 command Feb 29 2012 11:22:36.949: Using ?oating point is not backward compatible to iOS 4.1 or earlier devices Feb 29 2012 11:22:36.950: Processing ?le /Users/fengbo/project/testhsl/bgrs/ rwarren.mp4 Feb 29 2012 11:22:37.577: Finalized ?leSequence0.ts Feb 29 2012 11:22:37.577: segment bitrate 1.30908e+06 is new max Feb 29 2012 11:22:37.587: Finalized ?leSequence1.ts Feb 29 2012 11:22:37.600: Finalized ?leSequence2.ts Feb 29 2012 11:22:37.618: Finalized ?leSequence3.ts .... 12年2月29日星期三 5

6. Sample - Step 1 - Segment $ ls ?leSequence0.ts ?leSequence115.ts ?leSequence19.ts ?leSequence36.ts ?leSequence53.ts ?leSequence70.ts ?leSequence88.ts ... prog_index.m3u8 The manifest ?le 12年2月29日星期三 6

7. Sample - Step 1 - Segment prog_index.m3u8 12年2月29日星期三 7

8. Sample - Step 2 - Deploy Con?g Apache 12年2月29日星期三 8

9. Sample - Step 2 - Deploy Write HTML page cd /User/fengbo/project/testhsl vim index.html 12年2月29日星期三 9

10. Sample - Step 2 - View Open in Safari (Current can not work in Google Chrome) It works !!! 12年2月29日星期三 10

11. End For more, visit : https://developer.apple.com/library/mac/ #documentation/NetworkingInternet/ Conceptual/StreamingMediaGuide/ Introduction/Introduction.html#/ /apple_ref/ doc/uid/TP40008332-CH1- DontLinkElementID_39 12年2月29日星期三 11

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Http Live Streaming Intro

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