参考下面网址
http://processors.wiki.ti.com/index.php/Processor_Training:_Multimedia#Encode_Pipeline
尝试一些例子
kmssink:
target # gst-launch-1.0 playbin uri=file:///<path_to_file> video-sink=kmssink audio-sink=alsasink
上面这条命令可以
但是下面这条出现错误，错误提示 Internal data flow error
Capture and Display Fullscreen
target # gst-launch-1.0 v4l2src device=/dev/video1 num-buffers=1000 io-mode=4 ! 'video/x-raw, \
format=(string)YUY2, width=(int)1280, height=(int)720' ! vpe num-input-buffers=8 ! queue ! kmssink
cmd line display bellow:
root@am57xx-evm:/mnt#
root@am57xx-evm:/mnt#
root@am57xx-evm:/mnt#
io-mode=4 ! 'video/x-raw, \unch-1.0 v4l2src device=/dev/video1 num-buffers=1000
! queue ! kmssink2, width=(int)1280, height=(int)720' ! vpe num-input-buffers=8
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
[ 6171.709015] contiguous chunk is too small 4096/1843200 b
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal data flow error.
Additional debug info:
../../../../gstreamer-1.6.3/libs/gst/base/gstbasesrc.c(2943): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
streaming task paused, reason error (-5)
Execution ended after 0:00:01.818353713
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...
在 am57xx 开发板上 如何解决这个问题