mixing datapath framegrabber with composite input

[Mikael Kermorgant]

Hello,

Just a note to say that thanks to Tim Müller, the problem got solved. It
had something to do with deinterlacing, and the following pipeline did the
trick :

DEST=192.168.100.100
BITRATE=2048

CAMSOURCE="v4l2src device=/dev/video0 ! video/x-raw-rgb, framerate=25/1"
VENC="x264enc tune=zerolatency byte-stream=true bitrate=$BITRATE"

VENC="x264enc tune=zerolatency byte-stream=true bitrate=$BITRATE"
SCREENSOURCE="v4l2src device=/dev/dada0 !
video/x-raw-yuv,format=\(fourcc\)YUY2,width=800,height=640, framerate=25/1"
AUDIOSOURCE="alsasrc device=hw:1"

gst-launch  -v \
        $CAMSOURCE ! ffmpegcolorspace !  videoscale !
video/x-raw-yuv,width=480,height=300 ! deinterlace fields=top ! \
        queue ! videomixer name=mix ! \
        $VENC ! flvmux name="mux" \
        $AUDIOSOURCE ! ffenc_aac ! mux. \
        mux. ! rtmpsink location="rtmp://$DEST/amphi/mp4:live" \
        $SCREENSOURCE !  ffmpegcolorspace ! videobox border-alpha=1.0 top=0
 left=-480 !  mix.

Regards
Mikael Kermorgant


On Wed, Jun 10, 2015 at 3:38 PM, Mikael Kermorgant <
mikael.kermorgant at gmail.com> wrote:

> Hello,
>
> In case it might be useful, I activated more debug on my command, which
> gace me this output : http://ur1.ca/msd8i
>
> Any idea or suggestion ?
>
> Regards
> Mikael
>
> On Tue, Jun 9, 2015 at 3:55 PM, Mikael Kermorgant <
> mikael.kermorgant at gmail.com> wrote:
>
>> Hello,
>>
>> I'm trying to mix two videos captured from /dev/video0 and /dev/video1
>> into one, on an old ubuntu 12.04.
>> I have successfully mixed videotestsrc sources, one videtestsrc with one
>> from /dev/videoN
>>
>> But when I try to combine /dev/video0 and /dev/video1, it fails.
>>
>> Here's the pipeline :
>>
>> gst-launch-0.10  -v \
>>         v4l2src device=/dev/video0 ! video/x-raw-rgb ! videoscale !
>> video/x-raw-rgb,width=320,height=180 ! ffmpegcolorspace ! \
>>         videomixer name=mix ! \
>>         x264enc tune=zerolatency byte-stream=true bitrate=2048 ! queue !
>> filesink location="/tmp/pipcamera.avi" \
>>         v4l2src device=/dev/dada0 ! video/x-raw-yuv,
>> width=1280,height=1024, framerate=10/1 !  videoscale ! video/x-raw-yuv,
>> format=\(fourcc\)YUY2, width=320,height=180 ! ffmpegcolorspace ! videobox
>> border-alpha=1.0 top=0  left=-320 ! mix.
>>
>> Main error is :
>>
>> ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal
>> data flow error.
>> streaming task paused, reason not-negotiated (-4)
>>
>> Full output is here : http://ur1.ca/ms1uh
>>
>> Would you have any idea about what's wrong  ?
>> Best regards
>>
>> --
>> Mikael Kermorgant
>>
>
>
>
> --
> Mikael Kermorgant
>



-- 
Mikael Kermorgant
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