Version 1.4.5 and C920 webcam

[Jerry Geis]

I am using CentOS 7.2... gstreamer is 1.4.5.

When I run this to view my C920 webcam it comes up but 1 frame a second
gst-launch-1.0  -vvvv v4l2src device=/dev/video0 ! decodebin ! videoconvert
! ximagesink

When I then run this command:
gst-launch-1.0  -vvvv v4l2src device=/dev/video0 ! video/x-h264,
width=1920,height=1080,framerate=\(fraction\)30/1 ! decodebin !
videoconvert ! ximagesink

My window pops up but I never see a picture..

This is the output from GST_DEBUG=3

GST_DEBUG=3 gst-launch-1.0  -vvvv v4l2src device=/dev/video0 !
video/x-h264, width=1920,height=1080,framerate=\(fraction\)30/1 ! decodebin
! videoconvert ! ximagesink
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps =
"video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps =
"video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:sink.GstProxyPad:proxypad0:
caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:src:
caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstTypeFindElement:typefind.GstPad:sink:
caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstGhostPad:sink: caps =
"video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps =
"video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstH264Parse:h264parse0.GstPad:sink:
caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstH264Parse:h264parse0.GstPad:src:
caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ level\=\(string\)4\,\
profile\=\(string\)constrained-baseline"
0:00:00.535139262 24709      0x156ed90 WARN              fluh264dec
fluh264dec.c:251:gst_fluh264dec_flush:<GstFluH264Dec at 0x7f8850060000> we are
not setup yet, can't flush
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstCapsFilter:capsfilter1.GstPad:src:
caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ level\=\(string\)4\,\
profile\=\(string\)constrained-baseline"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstFluH264Dec:fluh264dec0.GstPad:sink:
caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ level\=\(string\)4\,\
profile\=\(string\)constrained-baseline"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstCapsFilter:capsfilter1.GstPad:sink:
caps = "video/x-h264\,\ stream-format\=\(string\)byte-stream\,\
alignment\=\(string\)au\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ framerate\=\(fraction\)30/1\,\
parsed\=\(boolean\)true\,\ level\=\(string\)4\,\
profile\=\(string\)constrained-baseline"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0/GstFluH264Dec:fluh264dec0.GstPad:src:
caps = "video/x-raw\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
format\=\(string\)I420\,\ framerate\=\(fraction\)30/1\,\
rotation\=\(int\)0\,\ pixel-aspect-ratio\=\(fraction\)1/1"
/GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:src: caps =
"video/x-raw\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
framerate\=\(fraction\)30/1\,\ rotation\=\(int\)0\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ format\=\(string\)BGRx"
/GstPipeline:pipeline0/GstXImageSink:ximagesink0.GstPad:sink: caps =
"video/x-raw\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
framerate\=\(fraction\)30/1\,\ rotation\=\(int\)0\,\
pixel-aspect-ratio\=\(fraction\)1/1\,\ format\=\(string\)BGRx"
/GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:sink: caps =
"video/x-raw\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
format\=\(string\)I420\,\ framerate\=\(fraction\)30/1\,\
rotation\=\(int\)0\,\ pixel-aspect-ratio\=\(fraction\)1/1"
/GstPipeline:pipeline0/GstDecodeBin:decodebin0.GstDecodePad:src_0.GstProxyPad:proxypad1:
caps = "video/x-raw\,\ width\=\(int\)1920\,\ height\=\(int\)1080\,\
format\=\(string\)I420\,\ framerate\=\(fraction\)30/1\,\
rotation\=\(int\)0\,\ pixel-aspect-ratio\=\(fraction\)1/1"
^Chandling interrupt.


Why would this not be showing a picture at the 30 frames a second?

Thanks,

jerry
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