[Libav-user] Recent ffmpeg version doesn't support v4l2
Leandro Santiago
leandrosansilva at gmail.com
Fri Jul 1 20:23:58 CEST 2011
Sorry for the delay (I was busy these days and couldn't answer). I
continue having problems with ffmpeg from trunk. The last which worked
with me is 0.7rc
the pastebin is in:
http://pastebin.com/rLL2jBUp
and the error, when I call av_open_input_file is:
[video4linux2 @ 0xa904180] ioctl set time per frame(7/8560628) failed
this call returns a valid value, but so I can't find any streams in
the input. With 0.7rc everything works fine.
The information about the camera:
05:08.0 Multimedia video controller: Brooktree Corporation Bt878 Video
Capture (rev 11)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (4000ns min, 10000ns max)
Interrupt: pin A routed to IRQ 21
Region 0: Memory at 9000f000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
Unknown small resource type 00, will not decode more.
Capabilities: [4c] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: bttv
Kernel modules: bttv
2011/6/18 Nicolas George <nicolas.george at normalesup.org>:
> Le decadi 30 prairial, an CCXIX, Alex Cohn a écrit :
>> Could this be related to the requirement to build ffmpeg as superuser?
>
> There is no requirement to build ffmpeg as superuser.
>
>> On Saturday, June 18, 2011, Leandro Santiago <leandrosansilva-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:
>
> Please do not top-post on these mailing-lists.
>
> Regards,
>
> --
> Nicolas George
>
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