Grabovani zvuku z TV

[Petr Houstek]

Dobry den,

  mam televizni kartu WinFast TV2000 XP, linux ji identifikuje jako
(lspci -v)

00:08.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
        Subsystem: LeadTek Research Inc. WinFast TV 2000
        Flags: bus master, medium devsel, latency 32, IRQ 19
        Memory at dddfe000 (32-bit, prefetchable) [size=4K]
        Capabilities: [44] Vital Product Data
        Capabilities: [4c] Power Management version 2

00:08.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
        Subsystem: LeadTek Research Inc.: Unknown device 6606
        Flags: bus master, medium devsel, latency 32, IRQ 19
        Memory at dddff000 (32-bit, prefetchable) [size=4K]
        Capabilities: [44] Vital Product Data
        Capabilities: [4c] Power Management version 2

Vypis z dmesg po nahrati modulu bttv

Linux video capture interface: v1.00
bttv: driver version 0.7.107 loaded
bttv: using 4 buffers with 2080k (8320k total) for capture
bttv: Host bridge is VIA Technologies, Inc. VT8366/A/7 [Apollo
KT266/A/333]
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 00:08.0, irq: 19, latency: 32, mmio: 0xdddfe000
bttv0: detected: Leadtek WinFast TV 2000 [card=34], PCI subsystem ID is
107d:6606
bttv0: using: BT878(Leadtek WinFast 2000/ W) [card=34,autodetected]
i2c-core.o: adapter bt848 #0 registered as adapter 1.
bttv0: using tuner=5
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
i2c-core.o: driver i2c TV tuner driver registered.
tuner: chip found @ 0xc2
tuner(bttv): type forced to 5 (Philips PAL_BG (FI1216 and compatibles))
[insmod]
tuner: type already set (5)
i2c-core.o: client [Philips PAL_BG (FI1216 and comp] registered to
adapter [bt848 #0](pos. 0).
bttv0: PLL: 28636363 => 35468950 .. ok
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: registered device radio0

a btaudio

btaudio: driver version 0.7 loaded [digital+analog]
btaudio: Bt878 (rev 17) at 00:08.1, irq: 19, latency: 32, mmio:
0xdddff000
btaudio: using card config "default"
btaudio: registered device dsp2 [digital]
btaudio: registered device dsp3 [analog]
btaudio: registered device mixer2

Obraz jde mplayerem bez problemu nahravat. Zvuk by mel jit nahrat dvema
zpusoby - jednak primo z karty pomoci modulu btaudio nebo spojenim
zvukoveho vystupu karty s line vstupem do zvukovky. Z /dev/dsp2 a
/dev/dsp3 jsem nic nedostal (nahraval jsem pomoci soxu postupem popsanym
v helpu k btaudio). Mplayer se mi nepodarilo nastavit, aby zvuk bral z
line vstupu zvukovky (pouzivam alsu). Nevite, jak ho presvedcit?

Dekuji,

-- 
Petr Houstek