iMX6 stream mixing

nmak — Fri, 22 May 2015 19:10:05 GMT

Given two input tv streams, how can I mix them?

gst-launch -v \

videomixer name=mix \

! mfw_v4lsink disp-width=640 disp-height=960 rotate=180 deinterlace=false \

tvsrc device=/dev/video0 \

! ffmpegcolorspace \

! queue \

! mix. \

tvsrc device=/dev/video1 \

! ffmpegcolorspace \

! queue \

! videobox border-alpha=0 top=-480 left=0 bottom=0 right=0 \

! queue \

! mix.

This use of videobox works but the cpu cannot keep up with the framerate sent to video box. The other pipes are being handled by the IPU which does the necessary hardware acceleration.

Is there a different plugin I could use?

I have also tried reducing the framerate but nothing I do seems to work.

gst-launch -v tvsrc fps-n=1 ! videorate !'video/x-raw-yuv, width=(int)720, height=(int)480, framerate=(fraction)1/1' ! mfw_v4lsink

gst-launch -v tvsrc fps-n=1 ! mfw_ipucsc ! videocrop left=0 right=0 ! videomaxrate average-period=10000000000 ! mfw_v4lsink device=/dev/video17 deinterlace=false

Re: iMX6 stream mixing

joanxie — Fri, 05 Jun 2015 08:11:29 GMT

you can refer to the link as below,

mix two video sources into one (side-by-side)

i.MX ProcessorsのトピックiMX6 stream mixing

iMX6 stream mixing

Re: iMX6 stream mixing