[Bug 748517] New: decklinkvideosrc: failed to capture frames

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Mon Apr 27 04:33:08 PDT 2015 

https://bugzilla.gnome.org/show_bug.cgi?id=748517

            Bug ID: 748517
           Summary: decklinkvideosrc: failed to capture frames
    Classification: Platform
           Product: GStreamer
           Version: 1.4.5
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: arjunsurendrans at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

I used the following pipleline to capture audio and video from a Blackmagic 4K
Extreme card, but I could capture only audio. I am using a GoPro Hero 3+ camera
in an Ubuntu 12.04 machine.

gst-launch-1.0 decklinkvideosrc mode=18 connection=1 buffer-size=60 !
videoconvert ! theoraenc ! queue ! m. decklinkaudiosrc connection=1 !
audioconvert ! vorbisenc ! queue ! m. oggmux name=m ! filesink
location='test.ogg'

Is this launch line correct?

The following is the GStreamer debug log

$ GST_DEBUG=decklinkvideosrc:6 gst-launch-1.0 decklinkvideosrc mode=18
connection=2 buffer-size=300 ! videoconvert ! theoraenc ! queue ! m.
decklinkaudiosrc connection=1 ! audioconvert ! vorbisenc ! queue ! m. oggmux
name=m ! filesink location='blah.ogg'

Setting pipeline to PAUSED ...
0:00:00.030493044 10224      0x19acc10 DEBUG       decklinkvideosrc
gstdecklinkvideosrc.cpp:629:gst_decklink_video_src_open:<decklinkvideosrc0>
Starting
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
0:00:00.033760319 10224      0x19acc10 DEBUG       decklinkvideosrc
gstdecklinkvideosrc.cpp:714:gst_decklink_video_src_start_streams:<decklinkvideosrc0>
Not starting streams yet
New clock: GstDecklinkInputClock
0:00:00.033788976 10224      0x19b0280 DEBUG       decklinkvideosrc
gstdecklinkvideosrc.cpp:714:gst_decklink_video_src_start_streams:<decklinkvideosrc0>
Not starting streams yet
0:00:00.034515121 10224      0x19b04f0 DEBUG       decklinkvideosrc
gstdecklinkvideosrc.cpp:262:gst_decklink_video_src_set_caps:<decklinkvideosrc0>
Setting caps video/x-raw, format=(string)UYVY, width=(int)1280,
height=(int)720, framerate=(fraction)60000/1001,
interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1,
colorimetry=(string)bt709, chroma-site=(string)mpeg2
0:00:00.044324443 10224      0x19b04f0 DEBUG       decklinkvideosrc
gstdecklinkvideosrc.cpp:687:gst_decklink_video_src_start_streams:<decklinkvideosrc0>
Starting streams
0:00:00.080410646 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:458:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Got video frame at 0:00:00.035045144
0:00:00.080439833 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.080447208 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:464:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Actual timestamp 0:00:00.035045144
0:00:00.080458189 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.080520217 10224      0x19b04f0 DEBUG       decklinkvideosrc
gstdecklinkvideosrc.cpp:552:gst_decklink_video_src_create:<decklinkvideosrc0>
Outputting buffer 0x7fe8c0079080 with timestamp 0:00:00.035045144 and duration
0:00:00.016683333
Redistribute latency...
0:00:00.096973939 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:458:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Got video frame at 0:00:00.051832014
0:00:00.096994736 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.097001491 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:464:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Actual timestamp 0:00:00.051832014
0:00:00.097009921 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.112795153 10224      0x19b04f0 DEBUG       decklinkvideosrc
gstdecklinkvideosrc.cpp:552:gst_decklink_video_src_create:<decklinkvideosrc0>
Outputting buffer 0x7fe8c007d160 with timestamp 0:00:00.051832014 and duration
0:00:00.016683333
0:00:00.113759171 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:458:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Got video frame at 0:00:00.068632368
0:00:00.113778370 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.113785782 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:464:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Actual timestamp 0:00:00.068632368
0:00:00.113794435 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.130615013 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:458:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Got video frame at 0:00:00.085435788
0:00:00.130635212 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.130642125 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:464:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Actual timestamp 0:00:00.085435788
0:00:00.130650308 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.147342457 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:458:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Got video frame at 0:00:00.102233342
0:00:00.147359500 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.147365987 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:464:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Actual timestamp 0:00:00.102233342
0:00:00.147373923 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.164152362 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:458:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Got video frame at 0:00:00.119036049
0:00:00.164169519 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.164176193 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:464:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Actual timestamp 0:00:00.119036049
0:00:00.164184539 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.180938867 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:458:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Got video frame at 0:00:00.135834073
0:00:00.180955322 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.180961849 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:464:gst_decklink_video_src_got_frame:<decklinkvideosrc0>
Actual timestamp 0:00:00.135834073
0:00:00.180969509 10224 0x7fe8a4005c10 LOG         decklinkvideosrc
gstdecklinkvideosrc.cpp:446:gst_decklink_video_src_convert_to_external_clock:<decklinkvideosrc0>
No clock conversion needed, same clocks
0:00:00.186274129 10224      0x19b04f0 DEBUG       decklinkvideosrc
gstdecklinkvideosrc.cpp:552:gst_decklink_video_src_create:<decklinkvideosrc0>
Outputting buffer 0x7fe8c007d270 with timestamp 0:00:00.068632368 and duration
0:00:00.016683333

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