Unlike the DTH service they have decided to utilise H.264 AVC (MPEG-4) for the video encoding, and a combination of HE-AAC and AC-3 for the audio. There will be a mix of SD and HD services.
Transmission Encoding DVB-T
Transmission Stream MPEG-2 TS
Video Encoding H.264
Audio Encoding HE-AAC,
AC3
Video Resolutions
4:3 576i,
16:9 576i,
720p50,
1080i50
Tools + Libraries
Here is an overview of some Linux video tools and their level of support for the DTH and DTT services.
Tool ................. DTH DTT Notes
mplayer 1.0rc2 Yes Partial Poor video support, no audio support for DTT
mplayer 1.0svn Yes Yes Video issues with interlaced DTT channels
ffmpeg svn Yes Partial No audio support for DTT
vlc Yes Partial
MythTV 0.20 Yes No
MythTV 0.21 Yes Partial Interlaced video issues, and no HE-AAC audio
Kaffine
totem
Library Notes
libfaad2 Provides support for HE-AAC
Currently cannot support LATM encapsulated AAC audio frames, which is required for DTT Support
MPlayer SVN has a custom patch for this support
mplayer -tv driver=v4l:width=640:height=480:outfmt=i420 -vc rawi420 -vo xv dvb://"NRK2"
MPlayer dev-SVN-r26877-4.2.3 (C) 2000-2008 MPlayer Team
CPU: AMD Turion(tm) 64 X2 Mobile Technology TL-56 (Family: 15, Model: 72, Stepping: 2)
CPUflags: MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE SSE2
Playing dvb://NRK2.
dvb_tune Freq: 722000000
TS file format detected.
VIDEO MPEG2(pid=525) AUDIO MPA(pid=692) NO SUBS (yet)! PROGRAM N. 0
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