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[张若]

Hi all,

I am using the mipi camera on board for a test:

gst-launch-1.0 v4l2src device=/dev/video0 !
video/x-raw,format=I420,width=320,height=240,framerate=30/1 ! videoconvert
! fakesink

But it always shows errors about not negotiated (-4).

The details about debug info as below:


“

Setting pipeline to PAUSED ...

Pipeline is live and does not need PREROLL ...

0:00:00.775658000 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2618:gst_v4l2_object_probe_caps_for_format:<v4l2src0>
Unknown frame sizeenum type for pixelformat YUYV: 0

0:00:00.775854667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2741:gst_v4l2_object_get_nearest_size:<v4l2src0> Unable to
try format: Invalid argument

0:00:00.775905334 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2633:gst_v4l2_object_probe_caps_for_format:<v4l2src0> Could
not probe minimum capture size for pixelformat YUYV

0:00:00.775988000 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2741:gst_v4l2_object_get_nearest_size:<v4l2src0> Unable to
try format: Invalid argument

0:00:00.776034334 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2639:gst_v4l2_object_probe_caps_for_format:<v4l2src0> Could
not probe maximum capture size for pixelformat YUYV

0:00:00.776153667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2618:gst_v4l2_object_probe_caps_for_format:<v4l2src0>
Unknown frame sizeenum type for pixelformat YU12: 0

0:00:00.776245667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2741:gst_v4l2_object_get_nearest_size:<v4l2src0> Unable to
try format: Invalid argument

0:00:00.776292667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2633:gst_v4l2_object_probe_caps_for_format:<v4l2src0> Could
not probe minimum capture size for pixelformat YU12

0:00:00.776375000 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2741:gst_v4l2_object_get_nearest_size:<v4l2src0> Unable to
try format: Invalid argument

0:00:00.776419667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2639:gst_v4l2_object_probe_caps_for_format:<v4l2src0> Could
not probe maximum capture size for pixelformat YU12

0:00:00.776535667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2618:gst_v4l2_object_probe_caps_for_format:<v4l2src0>
Unknown frame sizeenum type for pixelformat YV12: 0

0:00:00.776626000 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2741:gst_v4l2_object_get_nearest_size:<v4l2src0> Unable to
try format: Invalid argument

Setting pipeline to PLAYING ...

0:00:00.776672000 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2633:gst_v4l2_object_probe_caps_for_format:<v4l2src0> Could
not probe minimum capture size for pixelformat YV12

0:00:00.776754667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2741:gst_v4l2_object_get_nearest_size:<v4l2src0> Unable to
try format: Invalid argument

0:00:00.776802667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2639:gst_v4l2_object_probe_caps_for_format:<v4l2src0> Could
not probe maximum capture size for pixelformat YV12

0:00:00.776931334 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2618:gst_v4l2_object_probe_caps_for_format:<v4l2src0>
Unknown frame sizeenum type for pixelformat BGR3: 0

0:00:00.777033334 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2741:gst_v4l2_object_get_nearest_size:<v4l2src0> Unable to
try format: Invalid argument

0:00:00.777083667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2633:gst_v4l2_object_probe_caps_for_format:<v4l2src0> Could
not probe minimum capture size for pixelformat BGR3

0:00:00.777170000 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2741:gst_v4l2_object_get_nearest_size:<v4l2src0> Unable to
try format: Invalid argument

New clock: GstSystemClock

0:00:01.109641667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2639:gst_v4l2_object_probe_caps_for_format:<v4l2src0> Could
not probe maximum capture size for pixelformat BGR3

0:00:01.109869334 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2618:gst_v4l2_object_probe_caps_for_format:<v4l2src0>
Unknown frame sizeenum type for pixelformat RGB3: 0

0:00:01.110027334 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2741:gst_v4l2_object_get_nearest_size:<v4l2src0> Unable to
try format: Invalid argument

0:00:01.110081667 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2633:gst_v4l2_object_probe_caps_for_format:<v4l2src0> Could
not probe minimum capture size for pixelformat RGB3

0:00:01.110169334 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2741:gst_v4l2_object_get_nearest_size:<v4l2src0> Unable to
try format: Invalid argument

0:00:01.110216334 17474   0xa712f0 WARN                    v4l2
gstv4l2object.c:2639:gst_v4l2_object_probe_caps_for_format:<v4l2src0> Could
not probe maximum capture size for pixelformat RGB3

0:00:01.115789334 17474   0xa712f0 WARN                 basesrc
gstbasesrc.c:2948:gst_base_src_loop:<v4l2src0> error: Internal data flow
error.

0:00:01.115877667 17474   0xa712f0 WARN                 basesrc
gstbasesrc.c:2948:gst_base_src_loop:<v4l2src0> error: streaming task
paused, reason not-negotiated (-4)

ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal
data flow error.

Additional debug info:

gstbasesrc.c(2948): gst_base_src_loop ():
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0:

streaming task paused, reason not-negotiated (-4)

Execution ended after 0:00:00.339158667

Setting pipeline to PAUSED ...

Setting pipeline to READY ...

Setting pipeline to NULL ...

Freeing pipeline ...

“


Thanks in advanced!
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