Femon-plugin
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Shows DVB signal information on the OSD. | Shows DVB signal information on the OSD. | ||
-------------------------------------------------------------- | -------------------------------------------------------------- | ||
| - | |## Channel Name ######################### | + | |## Channel Name ########################## [AR][VF][A/DD][D]| |
| - | |[==== Signal Strength in % ==============|=================]| | + | |[=====Signal Strength in % ==============|=================]| |
| - | |[==== Signal-to-Noise Ratio in % ========|=================]| | + | |[=====Signal-to-Noise Ratio in % ========|=================]| |
| STR: #0000 (0%) BER: #00000000 Video: 0 Mbit/s | | | STR: #0000 (0%) BER: #00000000 Video: 0 Mbit/s | | ||
| SNR: #0000 (0%) UNC: #00000000 Audio: 0 kbit/s | | | SNR: #0000 (0%) UNC: #00000000 Audio: 0 kbit/s | | ||
| - | | | + | | [LOCK] [SIGNAL] [CARRIER] [VITERBI] [SYNC] | |
-------------------------------------------------------------- | -------------------------------------------------------------- | ||
| Line 23: | Line 23: | ||
VITERBI - FEC (forward error correction) is stable | VITERBI - FEC (forward error correction) is stable | ||
SYNC - Found sync bytes | SYNC - Found sync bytes | ||
| - | + | ||
| - | + | ||
AR - Aspect Ratio: 1:1/4:3/16:9/2.21:1 (optional) | AR - Aspect Ratio: 1:1/4:3/16:9/2.21:1 (optional) | ||
VF - Video format: PAL/NTSC (optional) | VF - Video format: PAL/NTSC (optional) | ||
| - | A | + | A/DD - Audio (0..5) / AC-3 track (optional) |
D - Device number: 0..3 (optional) | D - Device number: 0..3 (optional) | ||
| Line 44: | Line 43: | ||
|bgcolor=#efefef|Ok || Switch between display modes: basic, transponder, stream, AC-3 | |bgcolor=#efefef|Ok || Switch between display modes: basic, transponder, stream, AC-3 | ||
|- | |- | ||
| - | + | |bgcolor=#efefef|Green || Select next audio track | |
| - | + | ||
| - | |bgcolor=#efefef|Green || Select | + | |
|- | |- | ||
|bgcolor=#efefef|Back || Exit plugin | |bgcolor=#efefef|Back || Exit plugin | ||
| + | |- | ||
| + | |bgcolor=#efefef|(Right/Left) || (Switch to next/previous device that provides the current channel) | ||
|} | |} | ||
Revision as of 21:38, 15 February 2005
Contents |
Description
Shows DVB signal information on the OSD.
-------------------------------------------------------------- |## Channel Name ########################## [AR][VF][A/DD][D]| |[=====Signal Strength in % ==============|=================]| |[=====Signal-to-Noise Ratio in % ========|=================]| | STR: #0000 (0%) BER: #00000000 Video: 0 Mbit/s | | SNR: #0000 (0%) UNC: #00000000 Audio: 0 kbit/s | | [LOCK] [SIGNAL] [CARRIER] [VITERBI] [SYNC] | -------------------------------------------------------------- STR - Signal strength SNR - Signal-to-noise ratio BER - Bit error rate UNC - Uncorrected blocks Video - Calculated video bitrate in Mbit/s Audio - Calculated audio / AC-3 bitrate in kbit/s LOCK - Everything's working... SIGNAL - Found something above the noise level CARRIER - Found a DVB signal VITERBI - FEC (forward error correction) is stable SYNC - Found sync bytes AR - Aspect Ratio: 1:1/4:3/16:9/2.21:1 (optional) VF - Video format: PAL/NTSC (optional) A/DD - Audio (0..5) / AC-3 track (optional) D - Device number: 0..3 (optional)
Handling
| Key | Description |
|---|---|
| ChanUp/ChanDn | Switch channel up/down |
| Up/Down | Switch channel up/down |
| 0-9 | Select channel |
| Ok | Switch between display modes: basic, transponder, stream, AC-3 |
| Green | Select next audio track |
| Back | Exit plugin |
| (Right/Left) | (Switch to next/previous device that provides the current channel) |
Hardware requirements
- DVB card
Software requirements
Installation
Options
| Option | Description |
|---|---|
| NTSC_SYSTEM=1 | added preliminary NTSC support |
Problems
- The plugin supports only those DVB cards with _one_ frontend (do any cards with multiple frontends even exist?), because I haven't yet figured howto do it without patching the VDR core.
- Sometimes (read always) ttxtsubs plugin messes up the OSD - user should disable ttxtsubs, but closing and reopening the femon plugin might help temporarily as well. Btw., this same thing happens with OSDTeletext plugin too :)
- Disable the stream analysis to speed up heavy zapping sessions.
- The signal strength and signal-to-noise ratio values are comparable only between the same brand/model frontends. Due to the lack of proper frontend specifications those values cannot be calculated into any real units.
- Shrinked OSD is available for NTSC users: make NTSC_SYSTEM=1
- The device switching feature is still non-functional.
Links
| [1] | http://www.saunalahti.fi/~rahrenbe/vdr/femon | Plugin homepage |
