[gstreamer-bugs] [Bug 638299] New: v4l2src: make this work more than once in a row
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Wed Dec 29 12:02:05 PST 2010
https://bugzilla.gnome.org/show_bug.cgi?id=638299
GStreamer | gst-plugins-good | unspecified
Summary: v4l2src: make this work more than once in a row
Classification: Desktop
Product: GStreamer
Version: unspecified
OS/Version: All
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-good
AssignedTo: gstreamer-bugs at lists.sourceforge.net
ReportedBy: vincent.penquerch at collabora.co.uk
QAContact: gstreamer-bugs at lists.sourceforge.net
GNOME target: ---
GNOME version: ---
I have a USB camera on a Thinkpad T410 laptop, detected as:
uvcvideo: Found UVC 1.00 device Integrated Camera (17ef:480f)
Without this patch, v4l2src will fail to output anything the second time
it's used, unless different parameters are requested.
I guess some kind of way to make this optional has to be decided, as
applying this patch as is will revert to the 'slow setup' behavior this
skip was supposed to avoid (see f06b105058e73162275b50bdba89c6791e218d03).
For a log of that second-time-wedges with GST_DEBUG=v4l2src:5:
Setting pipeline to PAUSED ...
0:00:00.100190064 13521 0x24ec0a0 INFO v4l2src
gstv4l2src.c:604:gst_v4l2src_get_caps:<v4l2src0> probed caps: video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)1600, height=(
0:00:00.104554710 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:442:gst_v4l2src_negotiate:<v4l2src0> caps of src: video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)1600, height=
0:00:00.105263978 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:443:gst_v4l2src_negotiate:<v4l2src0> thiscaps: video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)1600, height=(in
0:00:00.112320210 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:451:gst_v4l2src_negotiate:<v4l2src0> caps of peer:
video/x-raw-yuv, format=(fourcc)YUY2, width=(int)640, height=
0:00:00.112386694 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:452:gst_v4l2src_negotiate:<v4l2src0> peercaps: video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)640, height=(int
0:00:00.112441939 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:462:gst_v4l2src_negotiate:<v4l2src0> peer: video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)640, height=(int)480
0:00:00.112465517 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:463:gst_v4l2src_negotiate:<v4l2src0> ipcaps: video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)640, height=(int)4
0:00:00.112528035 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:475:gst_v4l2src_negotiate:<v4l2src0> intersect: video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)640, height=(in
0:00:00.112563235 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:476:gst_v4l2src_negotiate:<v4l2src0> icaps: video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)640, height=(int)48
0:00:00.112655682 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:530:gst_v4l2src_negotiate:<v4l2src0> fixated to: video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)640, height=(i
0:00:00.112683884 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:531:gst_v4l2src_negotiate:<v4l2src0> caps: video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)640, height=(int)480
0:00:00.112717171 13521 0x24ec0a0 DEBUG v4l2src
gstv4l2src.c:642:gst_v4l2src_set_caps:<v4l2src0> trying to set_capture 640x480
at 30/1 fps, format YUV 4:2:2 (YUYV)
0:00:00.112736696 13521 0x24ec0a0 DEBUG v4l2src
v4l2src_calls.c:232:gst_v4l2src_set_capture:<v4l2src0> Desired framerate: 30/1
0:00:00.112755935 13521 0x24ec0a0 DEBUG v4l2src
v4l2src_calls.c:246:gst_v4l2src_set_capture:<v4l2src0> Desired framerate
already set
0:00:00.112768248 13521 0x24ec0a0 INFO v4l2src
v4l2src_calls.c:285:gst_v4l2src_set_capture:<v4l2src0> Set framerate to 30/1
and duration to 0:00:00.033333333
0:00:00.112781742 13521 0x24ec0a0 DEBUG v4l2src
v4l2src_calls.c:299:gst_v4l2src_capture_init:<v4l2src0> initializing the
capture system
0:00:00.112793369 13521 0x24ec0a0 LOG v4l2src
v4l2src_calls.c:307:gst_v4l2src_capture_init:<v4l2src0> initiating buffer pool
0:00:00.113401067 13521 0x24ec0a0 INFO v4l2src
v4l2src_calls.c:314:gst_v4l2src_capture_init:<v4l2src0> capturing buffers via
mmap()
0:00:00.113420878 13521 0x24ec0a0 DEBUG v4l2src
v4l2src_calls.c:361:gst_v4l2src_capture_start:<v4l2src0> starting the capturing
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = video/x-raw-yuv,
format=(fourcc)YUY2, width=(int)640, height=(int)480,
interlaced=(boolean)false, framerate=(fraction)30/1
0:00:00.114397748 13521 0x24ec0a0 LOG v4l2src
gstv4l2src.c:756:gst_v4l2src_unlock_stop:<v4l2src0> No longer flushing
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
0:00:00.115094038 13521 0x24ec0a0 LOG v4l2src
gstv4l2src.c:756:gst_v4l2src_unlock_stop:<v4l2src0> No longer flushing
0:00:00.115152020 13521 0x264b4a0 DEBUG v4l2src
v4l2src_calls.c:110:gst_v4l2src_grab_frame:<v4l2src0> grab frame
Caught interrupt -- handling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 4242922372 ns.
Setting pipeline to PAUSED ...
0:00:04.358147486 13521 0x24ec0a0 LOG v4l2src
gstv4l2src.c:745:gst_v4l2src_unlock:<v4l2src0> Flushing
0:00:04.358251658 13521 0x264b4a0 DEBUG v4l2src
v4l2src_calls.c:191:gst_v4l2src_grab_frame: stop called
Setting pipeline to READY ...
0:00:04.358531593 13521 0x24ec0a0 LOG v4l2src
gstv4l2src.c:745:gst_v4l2src_unlock:<v4l2src0> Flushing
0:00:04.358550519 13521 0x24ec0a0 LOG v4l2src
gstv4l2src.c:756:gst_v4l2src_unlock_stop:<v4l2src0> No longer flushing
0:00:04.358682347 13521 0x24ec0a0 DEBUG v4l2src
v4l2src_calls.c:390:gst_v4l2src_capture_stop:<v4l2src0> stopping capturing
0:00:04.383784158 13521 0x24ec0a0 DEBUG v4l2src
v4l2src_calls.c:424:gst_v4l2src_capture_deinit:<v4l2src0> deinitting capture
system
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = NULL
Setting pipeline to NULL ...
Freeing pipeline ...
--
Configure bugmail: https://bugzilla.gnome.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug.
You are the assignee for the bug.
More information about the Gstreamer-bugs
mailing list