On-line (Internet) Audio/Video

Index

General




IPTV Video over Internet
media video resolution
480i, 576i, 720p, 1080i, 1080p (any)
codec
  • MPEG-2
  • MPEG4-AVC/H264
  • VC-1
 (any)
container
  • MPEG-2 TS
  • (direct)
  • MP4
  • QuickTime
  • WMedia
  • RealNetworks
  • Flash Video
  • ...
service discovery

SD&S
transmission progressive download
  • HTTP
  • FTP
 - x
streaming live
video MPEG-2 RFC 2250
H264 RFC 3984
VC-1 RFC 4425
audio AAC RFC 3640
AMR-WB+ RFC 4352

x
on-demand x x
network delivery unicast
content on-demand x
multicast
x x
p2p
- x
receiver STB
x -
PC
  • Media Centre
  • browser (RTSP)
  • media player (RTP/RTCP)

Streaming

protocol info impl VLC client URL
RTP/RTCP UDP
IETF RFC audio video RTP packet
number name header payload
PT ...
3550
1889		 RTP



3555 MIME type registration MIME type


3551 AV profile  x x x

3640 MPEG-4 Elementary streams MPEG4 ES
(AAC,...)


AU header
section		 auxiliary section access unit data
section
agg
AU headers length AU header 1 AU header 2

AU size AU index CTS flag CTS delta DTS flag DTS delta RAP flag stream state
...

AU 1 AU 2
frag
AU header

AU 1 / fragment 1
AU header

AU 1 / fragment 2
3016 MPEG4 AV MPEG4


3119 Loss-tolerant MP3 MP3 -


3267 Payload and file storage AMR, AMR-WB AMR, AMR-WB -


4352 Payload AMR-WB+ AMR-WB+



2250 MPEG-1/2 video - MPEG-1/2


2429 H.263 video - H.263


3984 Payload H.264 video - H.264

NAL unit
NAL header payload
F NRI nal_unit_type
...
draft-svc (diff)
 Payload SVC video - SVC


4425 Payload VC-1 video - VC-1


  • udp://@:1234 (unicast to my_ip_address, broadcast to my_subnet)
  • udp://@224.x.x.x:1234 (multicast to 224.x.x.x)
RTSP (.org) (tricky mode)  TCP
  • on demand unicast: rtsp://172.x.x.x[:554]/toto.mp4
  • receive unicast: rtsp://172.x.x.x[:554]/toto[.sdp]
RSVP



SDP


HTTP TCP http://172.x.x.x
MSSH




Implementations:

 owner community license language features used by notes
GPL LGPL other C C++ Java RTP RTCP SRTP RTSP SDP SAP SIP
generic
(3550)
 MPEG-4
(3640)
 H.264
(3984)
ccRTP GNU
x (le)


x
x

x






jlibrtp






x










jrtplib Jori


x
x
x









libgstrtp GStreamer

x














librtp GPhone
x

x

x









libsrtp











x





live555


x

x
x x - x
x

x
oRTP Linphone

x
x

x









PJMEDIA Pernau

x



x






x

RTPlib Lucent


Non exclusive x

x









RTSP toolkit IBM











x




UCL RTP UCL



x

x




x


Vovida RTP Vovida


VOCAL
x
x



x




TML with KorFMD (H264 reference software) Suhering



x



x







SDP
freesdp GNU
x










x




HP


private








x




INRIA

x









x




Tampere University

x









x



NetSDP

x
Perl-art








x



SinisterSDP


x









x



streaming applications
Darwin Apple











x



hinted mp4 files
dvbstream


















Helix DNA Server


















LIVE555 Media Server












x




MPEG4IP



MPL (for own)


UCL x x

Darwin (own)


live
VideoLAN/VLC







x - -






MPEG-2 TS
mp4_streamer (GPAC applications/testapps)








x


-



mp4 files
multimedia frameworks

  • RTP header (IETF RFC 3550: section 5.1):
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
    V=2 P X CC M PT sequence_number
    timestamp
    synchronization source (SSRC) identifier
    contributing source (CSRC) identifiers
    • V: Version
    • P: Padding
    • X: Extension
    • CC: CSRC count
    • M: marker
    • PT: payload type
  • NAL header / nal_unit_type
  • H264/RTP (IETF RFC 3984):

    		RTP packet
    one several
    NAL unit one single fragmentation
    several aggregation -
    .

    		single NAL aggregation fragmentation unit
    STAP MTAP FU-A FU-B
    A
    (w/o DON)    		 B
    (w DON)    		 16-bits
    offset
    timestamp    		 24-bits
    offset
    timestamp


    		NAL unit type -> 1-23 24 25 26 27 28 29
    packetization modes single NAL
    		x





    non-interleaved

    		x


    		x
    interleaved


    		x x x x x
  • .
    frame AU layer slice NAL RTP
    # #

    		type PT SN timestamp marker
    - 0

    		8: PPS (96) 0 0
    1 1 base i 5: slice IDR 1 0 0
    ii 5: slice IDR 2 1?
    enh sp1 i 21: slice IDR scal 3 0
    ii 21: slice IDR scal 4 1?
    2 2 base i 2: slice A 5 3600 0
    ii 2: slice A 6 1
    3 3 base i 28: FU-A 7 7200 0
    8 0
    ii 1: slice non-IDR 9 1?
    enh sp1 i 20: slice non-IDR scal 10 0
    enh sp2 i 20: slice non-IDR scal 11 1?
    4 4 base i MTAP 12 14400 1
    5 5 base i
    .

Audio/Video

Programari / Software

Projectes europeus / European projects

Conferències / Conferences

Música / Music
Platform Components Technology Where / affiliates
Pressplay
(Duet)
  • Sony
  • Vivendi Universal
  • EMI
  • Madacy, Navarre, OWIE, Razor & Tie, Roadrunner, Rounder
  • TVT Records
  • Zomba
Musicnet

  • Virgin
  • HMV
 Tornado

Gestió de drets / Rights Management (DRM)

Gestió de pagaments / Payment management

Formats (*)

Continguts / Contents

Seqüències / Sequencies

P2P (Peer to peer)

Reproductors MP3 Players


dim LCD ràdio recording bluetooth video doc preu





dim res colors FM RDS FM line mic


1GB
(Z)		 2GB (Q) 4GB
(A)










live prog







Samsung YP-F2R 28 52 15


x x -
-






YP-T7 37 62 14
96x96 65K - - -
-
-




YP-T7F 37 62 14 1,2" 96x96 262K x x x x x
- MPEG4
135, 138+9+iva

YP-T8 44 83 15 1,8" 128x160 262K x - x


-


169
YP-T9J
(unoff)		 43 83 11 1,8" 172x220 262K x x x - - x x SVI: XVID 208x176 15 fps pdf 169+9+iva 155+9,9ii
189+9+iva
169+22ii		 239+9+iva
199+22ii
YP-Z5F 42 90 12 1,8" 128x160
x x x
-

MPEG4
118 159, 149
F: FM
X: 512MB
Z: 1GB
Q: 2GB
A: 4GB

http://www.terra.es/personal9/francesc.pinyol/online_audio_video.html
Darrera modificació: 17 de febrer de 2011 / Last update: 17th February 2011

Cap a casa / Back home.