[FFmpeg-user] The device does not support the streaming I/O method.

[Moritz Barsnick]

On Sat, Jan 24, 2015 at 12:23:26 +0100, Thomas Seilund wrote:
> If I supply input format then I get this error message
> 
> tps at t420:~/AMC/test$ ffmpeg -f v4l2 -list_formats all -f mpegts -i /dev/video1
> ffmpeg version N-69238-g2699a37 Copyright (c) 2000-2015 the FFmpeg  
> developers
>    built on Jan 24 2015 11:51:09 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
>    configuration: --enable-gpl --enable-libmp3lame --enable-libvpx --enable- 
> libx264 --enable-version3 --enable-libvorbis --enable-x11grab --enable- 
> libfreetype --enable-libv4l2 --enable-libfdk-aac --enable-nonfree
>    libavutil      54. 17.100 / 54. 17.100
>    libavcodec     56. 20.100 / 56. 20.100
>    libavformat    56. 19.100 / 56. 19.100
>    libavdevice    56.  4.100 / 56.  4.100
>    libavfilter     5.  8.101 /  5.  8.101
>    libswscale      3.  1.101 /  3.  1.101
>    libswresample   1.  1.100 /  1.  1.100
>    libpostproc    53.  3.100 / 53.  3.100
> Option list_formats not found.

You can't supply two input formats "-f" to one input. ffmpeg is using
the second one.

> tps at t420:~/AMC/test$ v4l2-ctl --device=/dev/video1 --list-formats-ext
> ioctl: VIDIOC_ENUM_FMT
>         Index       : 0
>         Type        : Video Capture
>         Pixel Format: 'MPEG' (compressed)
>         Name        : MPEG2-TS with AVC/AAC streams

Can you dump the capabilities of the device? (I use v4l-info for that.)
IIUC it needs to have the capabilities VIDEO_CAPTURE and STREAMING to
be supported by ffmpeg. (I don't know anything about Linux's hdpvr
device driver.)

> Venlig hilsen

Mvh,
Moritz