Raspberry Pi camera and 1.4.5

Arnaud Loonstra arnaud at sphaero.org
Mon Feb 23 13:11:39 PST 2015


Using a fdsrc works but talking directly to it through v4l2src does 
nothing. Not a bit is send out through the network. It seems the 
pipeline doesn't flow....

Using latest Raspbian and a compiled 1.4.5

$ raspivid -t 0 -w 1080 -h 720 -fps 25 -hf -b 2000000 -o - | gst-la
unch-1.0 -v fdsrc ! h264parse ! rtph264pay config-interval=1 pt=96 ! 
udpsink host=192.168.1.1 port=5000
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:src: caps = 
"video/x-h264\,\ width\=\(int\)1080\,\
height\=\(int\)720\,\ framerate\=\(fraction\)0/1\,\ 
parsed\=\(boolean\)true\,\ stream-format\=\(string\)a
vc\,\ alignment\=\(string\)au\,\ level\=\(string\)4\,\ 
profile\=\(string\)high\,\ codec_data\=\(buffer\)0
1640028ffe1000f27640028ac2b402202df2f00f1226a01000528ee025cb0"
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = 
"application/x-rtp\,\ media\=\(string
\)video\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ 
sprop-parameter-sets\=\(string\)\
"J2QAKKwrQCIC3y8A8SJq\\\,KO4CXLA\\\=\"\,\ payload\=\(int\)96\,\ 
ssrc\=\(uint\)473859634\,\ timestamp-offs
et\=\(uint\)1501147395\,\ seqnum-offset\=\(uint\)23019"
/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = 
"application/x-rtp\,\ media\=\(string\)vid
eo\,\ clock-rate\=\(int\)90000\,\ encoding-name\=\(string\)H264\,\ 
sprop-parameter-sets\=\(string\)\"J2QA
KKwrQCIC3y8A8SJq\\\,KO4CXLA\\\=\"\,\ payload\=\(int\)96\,\ 
ssrc\=\(uint\)473859634\,\ timestamp-offset\=\
(uint\)1501147395\,\ seqnum-offset\=\(uint\)23019"
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:sink: caps = 
"video/x-h264\,\ width\=\(int\)1080\
,\ height\=\(int\)720\,\ framerate\=\(fraction\)0/1\,\ 
parsed\=\(boolean\)true\,\ stream-format\=\(string
\)avc\,\ alignment\=\(string\)au\,\ level\=\(string\)4\,\ 
profile\=\(string\)high\,\ codec_data\=\(buffer
\)01640028ffe1000f27640028ac2b402202df2f00f1226a01000528ee025cb0"
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: timestamp = 1501147395
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: seqnum = 23019
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock

^Cmmal: Aborting program

handling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 0:00:10.363012001
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...



$ gst-launch-1.0 -v v4l2src do-timestamp=true ! 
video/x-h264,width=640,height=480,framerate=30/1 ! h264parse ! 
rtph264pay ! udpsink host=192.168.1.1 port=5000 sync=false 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\,\ framerate\=\(fraction\)30/1\,\ 
width\=\(int\)640\,\ height\=\(int\)480\,\ 
pixel-aspect-ratio\=\(fraction\)1/1"
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = 
"video/x-h264\,\ stream-format\=\(string\)byte-stream\,\ 
alignment\=\(string\)au\,\ framerate\=\(fraction\)30/1\,\ 
width\=\(int\)640\,\ height\=\(int\)480\,\ 
pixel-aspect-ratio\=\(fraction\)1/1"
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:sink: caps = 
"video/x-h264\,\ stream-format\=\(string\)byte-stream\,\ 
alignment\=\(string\)au\,\ framerate\=\(fraction\)30/1\,\ 
width\=\(int\)640\,\ height\=\(int\)480\,\ 
pixel-aspect-ratio\=\(fraction\)1/1"
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = 
"video/x-h264\,\ stream-format\=\(string\)byte-stream\,\ 
alignment\=\(string\)au\,\ framerate\=\(fraction\)30/1\,\ 
width\=\(int\)640\,\ height\=\(int\)480\,\ 
pixel-aspect-ratio\=\(fraction\)1/1"
^Chandling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 0:01:16.673993691
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...


Just noticed some kernel errors as well:
[ 9638.442183] Linux video capture interface: v2.00
[ 9638.485342] bcm2835-v4l2: scene mode selected 0, was 0
[ 9638.485580] bcm2835-v4l2: Work-around for gstreamer issue is active.
[ 9638.492510] bcm2835-v4l2: V4L2 device registered as video0 - stills 
mode > 1280x720
[ 9638.498031] bcm2835-v4l2: Broadcom 2835 MMAL video capture ver 0.0.2 
loaded.
[ 9661.282377] bcm2835-v4l2: error 0 waiting for frame completion
[ 9934.824835] bcm2835-v4l2: error 0 waiting for frame completion
[ 9969.360650] ------------[ cut here ]------------
[ 9969.360774] WARNING: CPU: 0 PID: 4036 at 
drivers/media/v4l2-core/videobuf2-core.c:2135 
__vb2_queue_cancel+0xf4/0x160 [videobuf2_core]()
[ 9969.360793] Modules linked in: bcm2835_v4l2 videobuf2_vmalloc 
videobuf2_memops videobuf2_core v4l2_common videodev media snd_bcm2835 
snd_pcm snd_seq snd_seq_device snd_timer snd joydev evdev 
uio_pdrv_genirq uio [last unloaded: videobuf2_memops]
[ 9969.360892] CPU: 0 PID: 4036 Comm: gst-launch-1.0 Not tainted 3.18.7+ 
#755
[ 9969.360964] [<c00151fc>] (unwind_backtrace) from [<c0012710>] 
(show_stack+0x20/0x24)
[ 9969.361006] [<c0012710>] (show_stack) from [<c0555b30>] 
(dump_stack+0x20/0x28)
[ 9969.361052] [<c0555b30>] (dump_stack) from [<c0022ef4>] 
(warn_slowpath_common+0x7c/0x9c)
[ 9969.361085] [<c0022ef4>] (warn_slowpath_common) from [<c0022fd0>] 
(warn_slowpath_null+0x2c/0x34)
[ 9969.361144] [<c0022fd0>] (warn_slowpath_null) from [<bf13aa1c>] 
(__vb2_queue_cancel+0xf4/0x160 [videobuf2_core])
[ 9969.361229] [<bf13aa1c>] (__vb2_queue_cancel [videobuf2_core]) from 
[<bf13c7f8>] (vb2_queue_release+0x28/0x48 [videobuf2_core])
[ 9969.361300] [<bf13c7f8>] (vb2_queue_release [videobuf2_core]) from 
[<bf13c874>] (_vb2_fop_release+0x5c/0x84 [videobuf2_core])
[ 9969.361366] [<bf13c874>] (_vb2_fop_release [videobuf2_core]) from 
[<bf13c8d0>] (vb2_fop_release+0x34/0x38 [videobuf2_core])
[ 9969.361561] [<bf13c8d0>] (vb2_fop_release [videobuf2_core]) from 
[<bf0fd460>] (v4l2_release+0x48/0x88 [videodev])
[ 9969.361687] [<bf0fd460>] (v4l2_release [videodev]) from [<c013b920>] 
(__fput+0x90/0x20c)
[ 9969.361723] [<c013b920>] (__fput) from [<c013bb04>] (____fput+0x18/0x1c)
[ 9969.361759] [<c013bb04>] (____fput) from [<c003d498>] 
(task_work_run+0x9c/0xcc)
[ 9969.361797] [<c003d498>] (task_work_run) from [<c00250a8>] 
(do_exit+0x2ec/0xa58)
[ 9969.361829] [<c00250a8>] (do_exit) from [<c00258b0>] 
(do_group_exit+0x50/0xf0)
[ 9969.361858] [<c00258b0>] (do_group_exit) from [<c0025970>] 
(__wake_up_parent+0x0/0x30)
[ 9969.361892] [<c0025970>] (__wake_up_parent) from [<c000e8c0>] 
(ret_fast_syscall+0x0/0x48)
[ 9969.361909] ---[ end trace 73848e747642fe10 ]---
[10169.845176] bcm2835-v4l2: error 0 waiting for frame completion
[10409.715748] bcm2835-v4l2: error 0 waiting for frame completion
[10411.325881] bcm2835-v4l2: error 0 waiting for frame completion
[10759.471245] bcm2835-v4l2: error 0 waiting for frame completion
[10761.161298] bcm2835-v4l2: error 0 waiting for frame completion
[11200.460611] bcm2835-v4l2: error 0 waiting for frame completion
[11824.398182] bcm2835-v4l2: error 0 waiting for frame completion



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