[uvch264src in 1.1.1.1] "Got data flow before segment event" warnings until crash

Peter Rennert p.rennert at cs.ucl.ac.uk
Thu Jul 11 10:11:14 PDT 2013


Thanks Tim,

I was a bit suspicious about the warnings as the cause for the crash, 
but since they relate to data flow, I thought there might a buffer 
filling up behind the scenes or something.

If I can ignore the warnings, the error interest is probably:

ERROR: from element /GstPipeline:pipeline0/GstUvcH264Src:src/GstUvcH264MjpgDemux:uvch264mjpgdemux0: Not enough data to read marker content
         Additional debug info:
         gstuvch264_mjpgdemux.c(507): gst_uvc_h264_mjpg_demux_chain(): /GstPipeline:pipeline0/GstUvcH264Src:src/GstUvcH264MjpgDemux:uvch264mjpgdemux0




On 07/11/2013 05:08 PM, Tim-Philipp Müller wrote:
> On Thu, 2013-07-11 at 11:55 -0400, Robert Krakora wrote:
>
>> I filed a bug report for this a couple of months ago.  Myself and
>> another engineer struggled with this error for a few weeks.  This
>> plugin works fine on GStreamer 0.10.  I think that it has something to
>> do with v4l2src on GStreamer 1.x.  I know I saw  that there was an
>> open issue that Wim and others have been struggling to solve.  They
>> may be related...
> It's just a warning. It doesn't indicate a problem in your application,
> but indicates something-that's-not-quite-right in some element. We are
> trying to get the order right here for some advanced use cases.
>
> You can ignore those warnings. They shouldn't have any side effects
> generally other than being annoying.
>
> It's not a 0.10 vs. 1.x thing, more of a 'unstable 1.1.x series vs.
> stable release series' thing. The warnings will go away in 1.2.0, even
> if we don't manage to fix them all (which is usually not too hard, just
> tedious).
>
> Cheers
>   -Tim
>
>> On Thu, Jul 11, 2013 at 11:51 AM, Peter Rennert
>> <p.rennert at cs.ucl.ac.uk> wrote:
>>          I just want to add that I get the same problem even with a
>>          very reduced pipeline of:
>>          
>>          gst-launch-1.0 uvch264src device=/dev/video1 name=src
>>          auto-start=true src.vfsrc ! queue ! fakesink src.vidsrc !
>>          queue ! video/x-h264 ! fakesink
>>          
>>          
>>          ........
>>          
>>          (gst-launch-1.0:5463): GStreamer-WARNING **:
>>          gstpad.c:3692:gst_pad_chain_data_unchecked:<fakesink1:sink>
>>          Got data flow before segment event
>>          
>>          (gst-launch-1.0:5463): GStreamer-WARNING **:
>>          gstpad.c:3923:gst_pad_push_data:<capsfilter0:src> Got data
>>          flow before segment event
>>          
>>          (gst-launch-1.0:5463): GStreamer-WARNING **:
>>          gstpad.c:3692:gst_pad_chain_data_unchecked:<fakesink1:sink>
>>          Got data flow before segment event
>>          ERROR: from
>>          element /GstPipeline:pipeline0/GstUvcH264Src:src/GstUvcH264MjpgDemux:uvch264mjpgdemux0: Not enough data to read marker content
>>          Additional debug info:
>>          gstuvch264_mjpgdemux.c(507): gst_uvc_h264_mjpg_demux_chain
>>          (): /GstPipeline:pipeline0/GstUvcH264Src:src/GstUvcH264MjpgDemux:uvch264mjpgdemux0
>>          Execution ended after 0:00:34.640728375
>>          Setting pipeline to PAUSED ...
>>          Setting pipeline to READY ...
>>          Setting pipeline to NULL ...
>>          Freeing pipeline .
>>          
>>          On 07/11/2013 04:23 PM, Peter Rennert wrote:
>>                  Hello,
>>                  
>>                  I am trying to get the uvch264src to work in gstreamer
>>                  1.1.1.1 (git head compiled yesterday) with the
>>                  following pipeline:
>>                  
>>                  gst-launch-1.0 uvch264src device=/dev/video1 name=src
>>                  auto-start=true src.vfsrc ! queue !
>>                  video/x-raw,width=320,height=240,format="YUY2",framerate=15/1 ! xvimagesink src.vidsrc ! queue ! video/x-h264,width=1920,height=1080,framerate=30/1,profile=constrained-baseline ! h264parse ! avdec_h264 ! xvimagesink
>>                  
>>                  It runs as expected (showing both the 1920x1080 and
>>                  320x240 windows). But it constantly prints warnings
>>                  (see below). Then stops it . You can find the
>>                  GST_DEBUG output below the warnings below.
>>                  
>>                  It works stable with gstreamer 0.10 (an older
>>                  compilation) and
>>                  
>>                  gst-launch uvch264_src device=/dev/video1 name=src
>>                  auto-start=true src.vfsrc ! queue !
>>                  video/x-raw-yuv,width=320,height=240,framerate=15/1 !
>>                  xvimagesink src.vidsrc ! queue !
>>                  video/x-h264,width=1920,height=1080,framerate=30/1,profile=constrained-baseline ! h264parse ! ffdec_h264 ! xvimagesink
>>                  
>>                  I am using a C920.
>>                  
>>                  I found a (probably) related problem here:
>>                  http://comments.gmane.org/gmane.comp.video.gstreamer.bugs/107399
>>                  
>>                  
>>                  Do I do something wrong in gstreamer 1 or is this a
>>                  bug?
>>                  
>>                  -----------------
>>                  
>>                  Warnings (i get loads of them, this is just an
>>                  excerpt):
>>                  
>>                  (gst-launch-1.0:2962): GStreamer-WARNING **:
>>                  gstpad.c:3923:gst_pad_push_data:<capsfilter1:src> Got
>>                  data flow before segment event
>>                  
>>                  (gst-launch-1.0:2962): GStreamer-WARNING **:
>>                  gstpad.c:3692:gst_pad_chain_data_unchecked:<h264parse0:sink> Got data flow before segment event
>>                  
>>                  (gst-launch-1.0:2962): GStreamer-WARNING **:
>>                  gstpad.c:3923:gst_pad_push_data:<h264parse0:src> Got
>>                  data flow before segment event
>>                  
>>                  (gst-launch-1.0:2962): GStreamer-WARNING **:
>>                  gstpad.c:3692:gst_pad_chain_data_unchecked:<avdec_h264-0:sink> Got data flow before segment event
>>                  
>>                  (gst-launch-1.0:2962): GStreamer-WARNING **:
>>                  gstpad.c:3923:gst_pad_push_data:<capsfilter0:src> Got
>>                  data flow before segment event
>>                  
>>                  (gst-launch-1.0:2962): GStreamer-WARNING **:
>>                  gstpad.c:3692:gst_pad_chain_data_unchecked:<xvimagesink0:sink> Got data flow before segment event
>>                  
>>                  (gst-launch-1.0:2962): GStreamer-WARNING **:
>>                  gstpad.c:3923:gst_pad_push_data:<capsfilter1:src> Got
>>                  data flow before segment event
>>                  
>>                  (gst-launch-1.0:2962): GStreamer-WARNING **:
>>                  gstpad.c:3692:gst_pad_chain_data_unchecked:<h264parse0:sink> Got data flow before segment event
>>                  
>>                  (gst-launch-1.0:2962): GStreamer-WARNING **:
>>                  gstpad.c:3923:gst_pad_push_data:<h264parse0:src> Got
>>                  data flow before segment event
>>                  
>>                  ==================================================================
>>                  
>>                  GST_DEBUG=5 :
>>                  
>>                  (only the interesting bit, shortly before the error
>>                  gets reported until the moment the error gets
>>                  reported)
>>                  
>>                  0:00:35.394998922  3694      0x1e171e0 DEBUG GST_CLOCK
>>                  gstclock.c:922:gst_clock_get_internal_time:<GstSystemClock> internal time 26:55:06.762023021
>>                  0:00:35.395022245  3694      0x1e171e0 DEBUG GST_CLOCK
>>                  gstclock.c:967:gst_clock_get_time:<GstSystemClock>
>>                  adjusted time 26:55:06.762023021
>>                  0:00:35.395034653  3694      0x1e171e0 DEBUG v4l2src
>>                  gstv4l2src.c:823:gst_v4l2src_fill:<v4l2src0> ts:
>>                  26:55:06.771552000 now 26:55:06.762058860 delay
>>                  0:00:00.000000000
>>                  0:00:35.395050068  3694      0x1e171e0 INFO v4l2src
>>                  gstv4l2src.c:861:gst_v4l2src_fill:<v4l2src0> sync to
>>                  0:00:34.433332989 out ts 0:00:34.768634907
>>                  0:00:35.395062230  3694      0x1e171e0 DEBUG basesrc
>>                  gstbasesrc.c:2216:gst_base_src_do_sync:<v4l2src0> no
>>                  sync needed
>>                  0:00:35.395069279  3694      0x1e171e0 DEBUG basesrc
>>                  gstbasesrc.c:2414:gst_base_src_get_range:<v4l2src0>
>>                  buffer ok
>>                  0:00:35.395080250  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:1958:gst_base_transform_handle_buffer:<capsfilter5> handling buffer 0x1de7720 of size 166785 and offset 1032
>>                  0:00:35.395090539  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2042:gst_base_transform_handle_buffer:<capsfilter5> calling prepare buffer
>>                  0:00:35.395099383  3694      0x1e171e0 DEBUG GST_CAPS
>>                  gstpad.c:2408:gst_pad_has_current_caps:<capsfilter5:sink> check current pad caps image/jpeg, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1
>>                  0:00:35.395123772  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2049:gst_base_transform_handle_buffer:<capsfilter5> using allocated buffer in 0x1de7720, out 0x1de7720
>>                  0:00:35.395131630  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2066:gst_base_transform_handle_buffer:<capsfilter5> doing inplace transform
>>                  0:00:35.395150881  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:513:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Found APP4 marker (12215). JPG: 0-8 - APP4: 8 - 12225
>>                  0:00:35.395163919  3694      0x1e171e0 DEBUG
>>                  GST_MEMORY gstmemory.c:138:gst_memory_init: new memory
>>                  0x7f77291e63d0, maxsize:1440014 offset:0 size:8
>>                  0:00:35.395174000  3694      0x1e171e0 DEBUG
>>                  GST_PERFORMANCE gstallocator.c:466:_sysmem_copy:
>>                  memcpy 1440007 memory 0x7f7728009720 -> 0x7f77291e63d0
>>                  0:00:35.395566373  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:550:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> New auxiliary stream : v1 - 22 bytes - H264 1920x1080 -- 333333 *100ns -- 27 ms -- 56960032
>>                  0:00:35.395589065  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:552:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Auxiliary stream size : 12187 bytes
>>                  0:00:35.395598711  3694      0x1e171e0 DEBUG
>>                  GST_MEMORY gstmemory.c:138:gst_memory_init: new memory
>>                  0x7f7728587db0, maxsize:1440014 offset:38 size:12187
>>                  0:00:35.395609310  3694      0x1e171e0 DEBUG
>>                  GST_PERFORMANCE gstallocator.c:466:_sysmem_copy:
>>                  memcpy 1440007 memory 0x7f7728009720 -> 0x7f7728587db0
>>                  0:00:35.395854659  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:659:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Pushing H264 auxiliary buffer video/x-h264, width=(int)1920, height=(int)1080, framerate=(fraction)30/1
>>                  0:00:35.395885190  3694      0x1e171e0 DEBUG GST_PADS
>>                  gstpad.c:3224:do_probe_callbacks:<src:vidsrc> data is
>>                  passed
>>                  0:00:35.395901512  3694      0x1e171e0 DEBUG GST_PADS
>>                  gstpad.c:3088:probe_hook_marshal:<src:vidsrc> probe
>>                  returned OK
>>                  0:00:35.395918777  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:513:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Found APP4 marker (65533). JPG: 12225-12225 - APP4: 12225 - 77760
>>                  0:00:35.395929092  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:550:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> New auxiliary stream : v1 - 22 bytes - YUY2 320x240 -- 333333 *100ns -- 27 ms -- 56960032
>>                  0:00:35.395940742  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:552:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Auxiliary stream size : 153600 bytes
>>                  0:00:35.396005741  3694      0x1e171e0 DEBUG
>>                  GST_MEMORY gstmemory.c:138:gst_memory_init: new memory
>>                  0x7f7728c67d10, maxsize:1440014 offset:12255
>>                  size:65505
>>                  0:00:35.395934221  3694      0x1e2b0a0 DEBUG
>>                  queue_dataflow gstqueue.c:1240:gst_queue_loop:<queue1>
>>                  queue is not empty
>>                  0:00:35.396055314  3694      0x1e2b0a0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:1962:gst_base_transform_handle_buffer:<capsfilter1> handling buffer 0x7f77380050b0 of size 12187 and offset NONE
>>                  0:00:35.396076643  3694      0x1e2b0a0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2042:gst_base_transform_handle_buffer:<capsfilter1> calling prepare buffer
>>                  0:00:35.396089336  3694      0x1e2b0a0 DEBUG GST_CAPS
>>                  gstpad.c:2408:gst_pad_has_current_caps:<capsfilter1:sink> check current pad caps video/x-h264, width=(int)1920, height=(int)1080, framerate=(fraction)30/1
>>                  0:00:35.396116373  3694      0x1e2b0a0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2049:gst_base_transform_handle_buffer:<capsfilter1> using allocated buffer in 0x7f77380050b0, out 0x7f77380050b0
>>                  0:00:35.396128931  3694      0x1e2b0a0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2066:gst_base_transform_handle_buffer:<capsfilter1> doing inplace transform
>>                  
>>                  (gst-launch-1.0:3694): GStreamer-WARNING **:
>>                  gstpad.c:3923:gst_pad_push_data:<capsfilter1:src> Got
>>                  data flow before segment event
>>                  
>>                  (gst-launch-1.0:3694): GStreamer-WARNING **:
>>                  gstpad.c:3692:gst_pad_chain_data_unchecked:<h264parse0:sink> Got data flow before segment event
>>                  0:00:35.396169900  3694      0x1e2b0a0 DEBUG GST_CAPS
>>                  gstpad.c:2408:gst_pad_has_current_caps:<h264parse0:src> check current pad caps video/x-h264, width=(int)1920, height=(int)1080, framerate=(fraction)30/1, profile=(string)constrained-baseline, parsed=(boolean)true, stream-format=(string)byte-stream, alignment=(string)au
>>                  0:00:35.396202328  3694      0x1e2b0a0 DEBUG h264parse
>>                  gsth264parse.c:165:gst_h264_parse_reset_frame:<h264parse0> reset frame
>>                  
>>                  (gst-launch-1.0:3694): GStreamer-WARNING **:
>>                  gstpad.c:3923:gst_pad_push_data:<h264parse0:src> Got
>>                  data flow before segment event
>>                  
>>                  (gst-launch-1.0:3694): GStreamer-WARNING **:
>>                  gstpad.c:3692:gst_pad_chain_data_unchecked:<avdec_h264-0:sink> Got data flow before segment event
>>                  0:00:35.396241398  3694      0x1e2b0a0 DEBUG default
>>                  gstsegment.c:481:gst_segment_to_running_time: invalid
>>                  position (-1)
>>                  0:00:35.396281397  3694      0x1e2b0a0 DEBUG libav
>>                  gstavviddec.c:935:gst_ffmpegviddec_do_qos:<avdec_h264-0> decoding time 2562047:47:16.854775807
>>                  0:00:35.396314138  3694      0x1e2b0a0 DEBUG libav
>>                  gstavviddec.c:1100:gst_ffmpegviddec_video_frame:<avdec_h264-0> stored opaque values idx 1032
>>                  0:00:35.396349848  3694      0x1e2b0a0 DEBUG
>>                  libav :0:: Frame num gap 60 58
>>                  0:00:35.396378922  3694      0x1e2b0a0 DEBUG libav
>>                  gstavviddec.c:704:gst_ffmpegviddec_release_buffer:<avdec_h264-0> release frame 1030
>>                  0:00:35.396414061  3694      0x1e2b0a0 DEBUG libav
>>                  gstavviddec.c:538:gst_ffmpegviddec_get_buffer:<avdec_h264-0> getting buffer picture 0x7f773c726040
>>                  0:00:35.396437146  3694      0x1e2b0a0 DEBUG
>>                  videodecoder
>>                  gstvideodecoder.c:2883:gst_video_decoder_get_frame:<avdec_h264-0> frame_number : 1032
>>                  0:00:35.396466024  3694      0x1e2b0a0 DEBUG libav
>>                  gstavviddec.c:557:gst_ffmpegviddec_get_buffer:<avdec_h264-0> storing opaque 0x7f77300c4130
>>                  0:00:35.397593960  3694      0x1e2b0a0 DEBUG libav
>>                  gstavviddec.c:704:gst_ffmpegviddec_release_buffer:<avdec_h264-0> release frame 1031
>>                  0:00:35.397631322  3694      0x1e2b0a0 DEBUG default
>>                  gstvideoutils.c:40:_gst_video_codec_frame_free: free
>>                  frame 0x7f7728848080
>>                  0:00:35.397643694  3694      0x1e2b0a0 DEBUG
>>                  GST_MEMORY gstmemory.c:88:_gst_memory_free: free
>>                  memory 0x7f7728849000
>>                  0:00:35.397666794  3694      0x1e2b0a0 DEBUG libav
>>                  gstavviddec.c:538:gst_ffmpegviddec_get_buffer:<avdec_h264-0> getting buffer picture 0x7f773c7264c0
>>                  0:00:35.398284117  3694      0x1e2b0a0 DEBUG
>>                  videodecoder
>>                  gstvideodecoder.c:2883:gst_video_decoder_get_frame:<avdec_h264-0> frame_number : 1032
>>                  0:00:35.398304138  3694      0x1e2b0a0 WARN libav
>>                  gstavviddec.c:632:gst_ffmpegviddec_get_buffer:<avdec_h264-0> already alloc'ed output buffer for frame
>>                  0:00:35.398316802  3694      0x1e2b0a0 ERROR
>>                  libav :0:: get_buffer() failed (-1 2 (nil))
>>                  0:00:35.398331690  3694      0x1e2b0a0 ERROR
>>                  libav :0:: decode_slice_header error
>>                  0:00:35.398348752  3694      0x1e2b0a0 DEBUG libav
>>                  gstavviddec.c:538:gst_ffmpegviddec_get_buffer:<avdec_h264-0> getting buffer picture 0x7f773c7264c0
>>                  0:00:35.398356353  3694      0x1e2b0a0 DEBUG
>>                  videodecoder
>>                  gstvideodecoder.c:2883:gst_video_decoder_get_frame:<avdec_h264-0> frame_number : 1032
>>                  0:00:35.398363340  3694      0x1e2b0a0 WARN libav
>>                  gstavviddec.c:632:gst_ffmpegviddec_get_buffer:<avdec_h264-0> already alloc'ed output buffer for frame
>>                  0:00:35.398370450  3694      0x1e2b0a0 ERROR
>>                  libav :0:: get_buffer() failed (-1 2 (nil))
>>                  0:00:35.398377837  3694      0x1e2b0a0 ERROR
>>                  libav :0:: decode_slice_header error
>>                  0:00:35.398386031  3694      0x1e2b0a0 DEBUG libav
>>                  gstavviddec.c:538:gst_ffmpegviddec_get_buffer:<avdec_h264-0> getting buffer picture 0x7f773c7264c0
>>                  0:00:35.398392697  3694      0x1e2b0a0 DEBUG
>>                  videodecoder
>>                  gstvideodecoder.c:2883:gst_video_decoder_get_frame:<avdec_h264-0> frame_number : 1032
>>                  0:00:35.398399053  3694      0x1e2b0a0 WARN libav
>>                  gstavviddec.c:632:gst_ffmpegviddec_get_buffer:<avdec_h264-0> already alloc'ed output buffer for frame
>>                  0:00:35.398404717  3694      0x1e2b0a0 ERROR
>>                  libav :0:: get_buffer() failed (-1 2 (nil))
>>                  0:00:35.398411627  3694      0x1e2b0a0 ERROR
>>                  libav :0:: decode_slice_header error
>>                  0:00:35.398418838  3694      0x1e2b0a0 DEBUG libav
>>                  gstavviddec.c:538:gst_ffmpegviddec_get_buffer:<avdec_h264-0> getting buffer picture 0x7f773c7264c0
>>                  0:00:35.398425798  3694      0x1e2b0a0 DEBUG
>>                  videodecoder
>>                  gstvideodecoder.c:2883:gst_video_decoder_get_frame:<avdec_h264-0> frame_number : 1032
>>                  0:00:35.398432465  3694      0x1e2b0a0 WARN libav
>>                  gstavviddec.c:632:gst_ffmpegviddec_get_buffer:<avdec_h264-0> already alloc'ed output buffer for frame
>>                  0:00:35.398438066  3694      0x1e2b0a0 ERROR
>>                  libav :0:: get_buffer() failed (-1 2 (nil))
>>                  0:00:35.398445219  3694      0x1e2b0a0 ERROR
>>                  libav :0:: decode_slice_header error
>>                  0:00:35.398451851  3694      0x1e2b0a0 ERROR
>>                  libav :0:: mmco: unref short failure
>>                  0:00:35.398627695  3694      0x1e2b0a0 INFO libav :0::
>>                  concealing 8160 DC, 8160 AC, 8160 MV errors
>>                  0:00:35.398828963  3694      0x1e171e0 DEBUG
>>                  GST_PERFORMANCE gstallocator.c:466:_sysmem_copy:
>>                  memcpy 1440007 memory 0x7f7728009720 -> 0x7f7728c67d10
>>                  0:00:35.399319058  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:513:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Found APP4 marker (65533). JPG: 77760-77760 - APP4: 77760 - 143295
>>                  0:00:35.399353615  3694      0x1e171e0 DEBUG
>>                  GST_MEMORY gstmemory.c:138:gst_memory_init: new memory
>>                  0x7f7728849000, maxsize:1440014 offset:77764
>>                  size:65531
>>                  0:00:35.399368422  3694      0x1e171e0 DEBUG
>>                  GST_PERFORMANCE gstallocator.c:466:_sysmem_copy:
>>                  memcpy 1440007 memory 0x7f7728009720 -> 0x7f7728849000
>>                  0:00:35.399658333  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:513:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Found APP4 marker (22566). JPG: 143295-143295 - APP4: 143295 - 165863
>>                  0:00:35.399677140  3694      0x1e171e0 DEBUG
>>                  GST_MEMORY gstmemory.c:138:gst_memory_init: new memory
>>                  0x7f7728dc76c0, maxsize:1440014 offset:143299
>>                  size:22564
>>                  0:00:35.399690113  3694      0x1e171e0 DEBUG
>>                  GST_PERFORMANCE gstallocator.c:466:_sysmem_copy:
>>                  memcpy 1440007 memory 0x7f7728009720 -> 0x7f7728dc76c0
>>                  0:00:35.399982333  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:659:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Pushing YUY2 auxiliary buffer video/x-raw, format=(string)YUY2, width=(int)320, height=(int)240, framerate=(fraction)15/1
>>                  0:00:35.400035247  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:1962:gst_base_transform_handle_buffer:<videoconvert4> handling buffer 0x7f7730007550 of size 153600 and offset NONE
>>                  0:00:35.400047757  3694      0x1e171e0 DEBUG default
>>                  gstsegment.c:481:gst_segment_to_running_time: invalid
>>                  position (-1)
>>                  0:00:35.400057009  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2042:gst_base_transform_handle_buffer:<videoconvert4> calling prepare buffer
>>                  0:00:35.400066028  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:1537:default_prepare_output_buffer:<videoconvert4> passthrough: reusing input buffer
>>                  0:00:35.400074785  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2049:gst_base_transform_handle_buffer:<videoconvert4> using allocated buffer in 0x7f7730007550, out 0x7f7730007550
>>                  0:00:35.400085953  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2060:gst_base_transform_handle_buffer:<videoconvert4> element is in passthrough
>>                  0:00:35.400100607  3694      0x1e171e0 DEBUG GST_PADS
>>                  gstpad.c:3224:do_probe_callbacks:<src:vfsrc> data is
>>                  passed
>>                  0:00:35.400125786  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:694:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> SOS marker wasn't found. MJPG is container only
>>                  0:00:35.400136546  3694      0x1e171e0 DEBUG
>>                  GST_MEMORY gstmemory.c:88:_gst_memory_free: free
>>                  memory 0x7f77291e63d0
>>                  0:00:35.400153414  3694      0x1e171e0 DEBUG v4l2
>>                  gstv4l2bufferpool.c:933:gst_v4l2_buffer_pool_release_buffer:<v4l2bufferpool0> release buffer 0x1de7720
>>                  0:00:35.400178526  3694      0x1e171e0 DEBUG basesrc
>>                  gstbasesrc.c:2351:gst_base_src_get_range:<v4l2src0>
>>                  calling create offset 18446744073709551615 length
>>                  4096, time 0
>>                  0:00:35.400194362  3694      0x1e171e0 DEBUG v4l2
>>                  gstv4l2bufferpool.c:832:gst_v4l2_buffer_pool_acquire_buffer:<v4l2bufferpool0> acquire
>>                  0:00:35.400205021  3694      0x1e171e0 DEBUG GST_POLL
>>                  gstpoll.c:1200:gst_poll_wait:
>>                  timeout :99:99:99.999999999
>>                  0:00:35.400235182  3694      0x1e2b1e0 DEBUG
>>                  queue_dataflow gstqueue.c:1240:gst_queue_loop:<queue0>
>>                  queue is not empty
>>                  0:00:35.402142734  3694      0x1e2b1e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:1962:gst_base_transform_handle_buffer:<capsfilter0> handling buffer 0x7f7730007550 of size 153600 and offset NONE
>>                  0:00:35.402168640  3694      0x1e2b1e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2042:gst_base_transform_handle_buffer:<capsfilter0> calling prepare buffer
>>                  0:00:35.402178987  3694      0x1e2b1e0 DEBUG GST_CAPS
>>                  gstpad.c:2408:gst_pad_has_current_caps:<capsfilter0:sink> check current pad caps video/x-raw, format=(string)YUY2, width=(int)320, height=(int)240, framerate=(fraction)15/1
>>                  0:00:35.402210753  3694      0x1e2b1e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2049:gst_base_transform_handle_buffer:<capsfilter0> using allocated buffer in 0x7f7730007550, out 0x7f7730007550
>>                  0:00:35.402218850  3694      0x1e2b1e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2066:gst_base_transform_handle_buffer:<capsfilter0> doing inplace transform
>>                  
>>                  (gst-launch-1.0:3694): GStreamer-WARNING **:
>>                  gstpad.c:3923:gst_pad_push_data:<capsfilter0:src> Got
>>                  data flow before segment event
>>                  
>>                  (gst-launch-1.0:3694): GStreamer-WARNING **:
>>                  gstpad.c:3692:gst_pad_chain_data_unchecked:<xvimagesink0:sink> Got data flow before segment event
>>                  0:00:35.402247697  3694      0x1e2b1e0 DEBUG basesink
>>                  gstbasesink.c:3283:gst_base_sink_chain_unlocked:<xvimagesink0> got times start: 99:99:99.999999999, end: 99:99:99.999999999
>>                  0:00:35.402263093  3694      0x1e2b1e0 DEBUG basesink
>>                  gstbasesink.c:1899:gst_base_sink_get_sync_times:<xvimagesink0> got times start: 99:99:99.999999999, stop: 99:99:99.999999999, do_sync 0
>>                  0:00:35.402275683  3694      0x1e2b1e0 DEBUG default
>>                  gstsegment.c:481:gst_segment_to_running_time: invalid
>>                  position (-1)
>>                  0:00:35.402281951  3694      0x1e2b1e0 DEBUG default
>>                  gstsegment.c:481:gst_segment_to_running_time: invalid
>>                  position (-1)
>>                  0:00:35.402289418  3694      0x1e2b1e0 DEBUG basesink
>>                  gstbasesink.c:3354:gst_base_sink_chain_unlocked:<xvimagesink0> rendering object 0x7f7730007550
>>                  0:00:35.402297939  3694      0x1e2b1e0 DEBUG basesink
>>                  gstbasesink.c:938:gst_base_sink_set_last_buffer_unlocked:<xvimagesink0> setting last buffer to 0x7f7730007550
>>                  0:00:35.402309005  3694      0x1e2b1e0 DEBUG
>>                  GST_MEMORY gstmemory.c:88:_gst_memory_free: free
>>                  memory 0x7f7728f27070
>>                  0:00:35.402322365  3694      0x1e2b1e0 DEBUG
>>                  GST_MEMORY gstmemory.c:88:_gst_memory_free: free
>>                  memory 0x7f7729086a20
>>                  0:00:35.402329259  3694      0x1e2b1e0 DEBUG
>>                  GST_MEMORY gstmemory.c:88:_gst_memory_free: free
>>                  memory 0x7f7729345d80
>>                  0:00:35.402748981  3694      0x1e2b1e0 DEBUG
>>                  bufferpool
>>                  gstbufferpool.c:479:gst_buffer_pool_set_active:<xvimagebufferpool1> pool was in the right state
>>                  0:00:35.402773116  3694      0x1e2b1e0 DEBUG
>>                  GST_MEMORY gstmemory.c:138:gst_memory_init: new memory
>>                  0x7f7738006800, maxsize:153607 offset:0 size:153600
>>                  0:00:35.402785810  3694      0x1e2b1e0 DEBUG
>>                  GST_PERFORMANCE gstbuffer.c:244:_get_merged_memory:
>>                  memcpy 65505 bytes for merge 0x7f7738006800 from
>>                  memory 0x7f7728c67d10
>>                  0:00:35.402805953  3694      0x1e2b1e0 DEBUG
>>                  GST_PERFORMANCE gstbuffer.c:244:_get_merged_memory:
>>                  memcpy 65531 bytes for merge 0x7f7738006800 from
>>                  memory 0x7f7728849000
>>                  0:00:35.402825501  3694      0x1e2b1e0 DEBUG
>>                  GST_PERFORMANCE gstbuffer.c:244:_get_merged_memory:
>>                  memcpy 22564 bytes for merge 0x7f7738006800 from
>>                  memory 0x7f7728dc76c0
>>                  0:00:35.402843541  3694      0x1e2b1e0 DEBUG
>>                  GST_PERFORMANCE gstbuffer.c:1509:gst_buffer_map_range:
>>                  temporary mapping for memory 0x7f7738006800 in buffer
>>                  0x7f7730007550
>>                  0:00:35.402930602  3694      0x1e2b1e0 DEBUG
>>                  GST_PERFORMANCE
>>                  video-frame.c:245:gst_video_frame_copy_plane: copy
>>                  plane 0, w:640 h:240
>>                  0:00:35.402963361  3694      0x1e2b1e0 DEBUG
>>                  GST_MEMORY gstmemory.c:88:_gst_memory_free: free
>>                  memory 0x7f7738006800
>>                  0:00:35.402993223  3694      0x1e2b1e0 DEBUG videosink
>>                  gstvideosink.c:117:gst_video_sink_center_rect: source
>>                  is 320x240 dest is 320x240, result is 320x240 with x,y
>>                  0x0
>>                  0:00:35.403172767  3694      0x1e2b1e0 DEBUG GST_QOS
>>                  gstbasesink.c:2855:gst_base_sink_do_render_stats:<xvimagesink0> avg_render: 0:00:00.000771911
>>                  0:00:35.403185342  3694      0x1e2b1e0 DEBUG basesink
>>                  gstbasesink.c:3393:gst_base_sink_chain_unlocked:<xvimagesink0> object unref after render 0x7f7730007550
>>                  0:00:35.403196545  3694      0x1e2b1e0 DEBUG
>>                  queue_dataflow gstqueue.c:1228:gst_queue_loop:<queue0>
>>                  queue is empty
>>                  0:00:35.426997236  3694      0x1e171e0 DEBUG v4l2
>>                  gstv4l2bufferpool.c:1167:gst_v4l2_buffer_pool_process:<v4l2bufferpool0> process buffer 0x1de7830
>>                  0:00:35.427041303  3694      0x1e171e0 DEBUG GST_CLOCK
>>                  gstclock.c:922:gst_clock_get_internal_time:<GstSystemClock> internal time 26:55:06.794065247
>>                  0:00:35.427056137  3694      0x1e171e0 DEBUG GST_CLOCK
>>                  gstclock.c:967:gst_clock_get_time:<GstSystemClock>
>>                  adjusted time 26:55:06.794065247
>>                  0:00:35.427067629  3694      0x1e171e0 DEBUG v4l2src
>>                  gstv4l2src.c:823:gst_v4l2src_fill:<v4l2src0> ts:
>>                  26:55:06.800990000 now 26:55:06.794092266 delay
>>                  0:00:00.000000000
>>                  0:00:35.427080729  3694      0x1e171e0 INFO v4l2src
>>                  gstv4l2src.c:861:gst_v4l2src_fill:<v4l2src0> sync to
>>                  0:00:34.466666322 out ts 0:00:34.800677133
>>                  0:00:35.427092788  3694      0x1e171e0 DEBUG basesrc
>>                  gstbasesrc.c:2216:gst_base_src_do_sync:<v4l2src0> no
>>                  sync needed
>>                  0:00:35.427100101  3694      0x1e171e0 DEBUG basesrc
>>                  gstbasesrc.c:2414:gst_base_src_get_range:<v4l2src0>
>>                  buffer ok
>>                  0:00:35.427112183  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:1958:gst_base_transform_handle_buffer:<capsfilter5> handling buffer 0x1de7830 of size 165490 and offset 1033
>>                  0:00:35.427122893  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2042:gst_base_transform_handle_buffer:<capsfilter5> calling prepare buffer
>>                  0:00:35.427131748  3694      0x1e171e0 DEBUG GST_CAPS
>>                  gstpad.c:2408:gst_pad_has_current_caps:<capsfilter5:sink> check current pad caps image/jpeg, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1
>>                  0:00:35.427157133  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2049:gst_base_transform_handle_buffer:<capsfilter5> using allocated buffer in 0x1de7830, out 0x1de7830
>>                  0:00:35.427164745  3694      0x1e171e0 DEBUG
>>                  basetransform
>>                  gstbasetransform.c:2066:gst_base_transform_handle_buffer:<capsfilter5> doing inplace transform
>>                  0:00:35.427176735  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:513:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Found APP4 marker (12182). JPG: 0-8 - APP4: 8 - 12192
>>                  0:00:35.427197573  3694      0x1e171e0 DEBUG
>>                  GST_MEMORY gstmemory.c:138:gst_memory_init: new memory
>>                  0x7f7728f27070, maxsize:1440014 offset:0 size:8
>>                  0:00:35.427207769  3694      0x1e171e0 DEBUG
>>                  GST_PERFORMANCE gstallocator.c:466:_sysmem_copy:
>>                  memcpy 1440007 memory 0x7f77281690c0 -> 0x7f7728f27070
>>                  0:00:35.427908444  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:550:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> New auxiliary stream : v1 - 22 bytes - H264 1920x1080 -- 333333 *100ns -- 27 ms -- 67059032
>>                  0:00:35.427927470  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:552:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Auxiliary stream size : 12154 bytes
>>                  0:00:35.427939077  3694      0x1e171e0 DEBUG
>>                  GST_MEMORY gstmemory.c:138:gst_memory_init: new memory
>>                  0x7f7729086a20, maxsize:1440014 offset:38 size:12154
>>                  0:00:35.427948111  3694      0x1e171e0 DEBUG
>>                  GST_PERFORMANCE gstallocator.c:466:_sysmem_copy:
>>                  memcpy 1440007 memory 0x7f77281690c0 -> 0x7f7729086a20
>>                  0:00:35.428626317  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:659:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Pushing H264 auxiliary buffer video/x-h264, width=(int)1920, height=(int)1080, framerate=(fraction)30/1
>>                  0:00:35.428658303  3694      0x1e171e0 DEBUG GST_PADS
>>                  gstpad.c:3224:do_probe_callbacks:<src:vidsrc> data is
>>                  passed
>>                  0:00:35.428666953  3694      0x1e171e0 DEBUG GST_PADS
>>                  gstpad.c:3088:probe_hook_marshal:<src:vidsrc> probe
>>                  returned OK
>>                  0:00:35.428679400  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:513:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Found APP4 marker (65533). JPG: 12192-12192 - APP4: 12192 - 77727
>>                  0:00:35.428688152  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:550:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> New auxiliary stream : v1 - 22 bytes - YUY2 320x240 -- 333333 *100ns -- 27 ms -- 67059032
>>                  0:00:35.428697950  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:552:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Auxiliary stream size : 153600 bytes
>>                  0:00:35.428708335  3694      0x1e171e0 DEBUG
>>                  GST_MEMORY gstmemory.c:138:gst_memory_init: new memory
>>                  0x7f77291e63d0, maxsize:1440014 offset:12222
>>                  size:65505
>>                  0:00:35.428720262  3694      0x1e171e0 DEBUG
>>                  GST_PERFORMANCE gstallocator.c:466:_sysmem_copy:
>>                  memcpy 1440007 memory 0x7f77281690c0 -> 0x7f77291e63d0
>>                  0:00:35.429419395  3694      0x1e171e0 DEBUG
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:513:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> Found APP4 marker (65533). JPG: 77727-77727 - APP4: 77727 - 143262
>>                  0:00:35.429437926  3694      0x1e171e0 DEBUG
>>                  GST_MEMORY gstmemory.c:138:gst_memory_init: new memory
>>                  0x7f7729345d80, maxsize:1440014 offset:77731
>>                  size:65531
>>                  0:00:35.429446663  3694      0x1e171e0 DEBUG
>>                  GST_PERFORMANCE gstallocator.c:466:_sysmem_copy:
>>                  memcpy 1440007 memory 0x7f77281690c0 -> 0x7f7729345d80
>>                  0:00:35.430148554  3694      0x1e171e0 WARN
>>                  uvch264mjpgdemux
>>                  gstuvch264_mjpgdemux.c:507:gst_uvc_h264_mjpg_demux_chain:<uvch264mjpgdemux0> error: Not enough data to read marker content
>>                  0:00:35.430172000  3694      0x1e171e0 DEBUG
>>                  GST_MESSAGE
>>                  gstelement.c:1807:gst_element_message_full:<uvch264mjpgdemux0> start
>>                  0:00:35.430202374  3694      0x1e171e0 INFO
>>                  GST_ERROR_SYSTEM
>>                  gstelement.c:1838:gst_element_message_full:<uvch264mjpgdemux0> posting message: Not enough data to read marker content
>>                  0:00:35.430223343  3694      0x1e171e0 DEBUG GST_BUS
>>                  gstbus.c:312:gst_bus_post:<bus0> [msg 0x1e3c5a0]
>>                  posting on bus error message: 0x1e3c5a0, time
>>                  99:99:99.999999999, seq-num 378, element
>>                  'uvch264mjpgdemux0', GstMessageError,
>>                  gerror=(GError)NULL,
>>                  debug=(string)"gstuvch264_mjpgdemux.c\(507\):\
>>                  gst_uvc_h264_mjpg_demux_chain\ \(\):
>>                  \ /GstPipeline:pipeline0/GstUvcH264Src:src/GstUvcH264MjpgDemux:uvch264mjpgdemux0";
>>                  
>>                  ... now it continues with with and EOS that stops the
>>                  pipeline
>>          
>>          _______________________________________________
>>          gstreamer-devel mailing list
>>          gstreamer-devel at lists.freedesktop.org
>>          http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>
>>
>>
>> -- 
>> Rob Krakora
>> MessageNet Systems
>> 101 East Carmel Dr. Suite 105
>> Carmel, IN 46032
>> (317)566-1677 Ext 212
>> (317)663-0808 Fax
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



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