The document outlines the objectives and proposals of the h2b2vs project at Telecom ParisTech, which aims to improve the distribution of TV programs over diverse broadcast and broadband networks using new HEVC compression technology. Key enhancements include frame-accurate synchronization for 3D and Ultra HD content, dynamic enhancements, and a stable timeline for transport streams. The proposal focuses on efficient signaling and data management without disrupting existing infrastructures.

1. Telecom ParisTech
Timeline Delivery
for MPEG-2 TS
enhancements
m29227
lefeuvre@telecom-paristech.fr

2. Telecom ParisTech
H2B2VS Project
 H2B2VS focuses on the distribution of TV programs and
services over heterogeneous networks:
• Broadcast network (terrestrial, satellite, cable) and
• Broadband network (ADSL, fibre, mobile, …),
 by making use of a new compression technology: HEVC

3. Telecom ParisTech
Goals
 Enhance existing broadcast
• Media replacements, scalable enhancements
 Without impacting existing broadcast infrastructure
• StatMux or other equipments
 Rationale
• Scarcity of Spectrum resources prevents Broadcast
network operators to propose new services
• Difficulties for broadband networks to address specific
groups of people or some small geographical areas
(towns, districts, …)
4/26/20133

4. Telecom ParisTech
TS Service with perceptual Sync
 Audio switch from/to enhanced audio
• user watches TV and switch from stereo to 5.1
• Possibility to move from a language to another one
─ Dubbing track in native language to/from track in original
language
─ National language to/from regional languages, …
 Visual Data
• Subtitles, text annotations
• Picture-In-Picture
─ Sign language video
─ Video overlay
26/04/20134

5. Telecom ParisTech
TS Service with frame-accurate Sync
 3D distribution
• The broadcast carries the 2D “legacy” program, 3D
version is delivered over broadband
• Needs frame-accurate presentation
 UltraHD TV distribution
• The Broadcast carries the AVC HD program, UltraHD
version can be delivered broadband with SHVC
enhancement
• Needs frame-accurate decoding
26/04/20135

6. Telecom ParisTech
Technical Goals
 Indicate location of the enhancement
• URL pointing to external resource
• Optionally, indicate MIME type
 Provide stable timeline for TS
• Not impacted by PCR discontinuity
• Not impacted by muxers
• Map PES timestamps to a media timeline
 Dynamic enhancements
• Send prefetching information
• Send reload/change of enhancements
 Tools, not services
• How media is acquired is out of scope (buffering, …)
• How media is consumed is out of scope (decoding, …)
• No restrictions on enhancement media type
26/04/20136

7. Telecom ParisTech
Proposal Description
 Single PES stream
• Avoids PMT update when enhancement changes
• Less impact on existing muxers
• Not touching media PES streams
 Signaling
• Mime types and service URL
• Media timeline
• Reload marker
• Service announcement for prefetch
26/04/20137

8. Telecom ParisTech
Proposal
26/04/20138
MediaTimelineTime_PES_Payload {
has_mime
has_location
force_location_reload
is announcement
reserved=0
if (has_mime) {
mime_length
for (i=0;i<mime_length;i++) {
mime_type
}
}
if (has_location) {
url_length
for (i=0;i< url_length;i++) {
addon_url
}
}
timescale
if (is_announcement) {
time_before_activation
} else {
media_time_anchor
}
}
 Payload syntax
 + New PES StreamType

9. Telecom ParisTech
M29227
Questions ?
lefeuvre@telecom-paristech.fr