[uvch264src in 1.1.1.1] "Got data flow before segment event" warnings until crash
Robert Krakora
rob.krakora at messagenetsystems.com
Thu Aug 8 12:28:26 PDT 2013
Hi Peter,
As another test, I instead of using that 'data' member of the structure
returned from the gst_buffer_map() in the JPEG container parsing code I
placed in the v4l2src plugin, I used the 'mem' member of the meta data
structure returned by GST_V4L2_META_GET() on the GstBuffer. The JPEG
parsing code then does not blow up like it normally does. So, are the
GstBuffer and GstMemory at fault? Are they corrupting the data returned to
the application from the kernel via the UVC driver?
Best Regards,
Rob
On Thu, Aug 8, 2013 at 2:49 PM, Robert Krakora <
rob.krakora at messagenetsystems.com> wrote:
> Hi Peter,
>
> I took the liberty of instrumenting both the v4l2src plugin and the UVC
> driver with the same JPEG container parsing code that is in the uvch264src
> plugin. The JPEG container parsing code I placed in the v4l2src plugin
> fails just as it does in the uvch264src plugin. However, the JPEG
> container parsing code I placed in the UVC driver does not fail. Below are
> excerpts from v4l2src plugin log and the UVC driver log. This area in
> both logs differs in the size of the first segment. However, in the parse
> of the previous buffer, the size of the first segment is identical.
>
> Best Regards,
>
> Rob
>
> JPEG Container Parsing in v4l2src Plugin (look at this section):
>
> 0:00:34.755137572 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:1297:gst_v4l2_buffer_pool_process:<v4l2bufferpool0>
> process buffer 0x7f09cc007180
> 0:00:34.755181248 18164 0x24dc540 DEBUG v4l2src
> gstv4l2src.c:823:gst_v4l2src_fill:<v4l2src0> ts: 2:07:27.925825000 now
> 2:07:28.086122248 delay 0:00:00.160297248
> 0:00:34.755223877 18164 0x24dc540 INFO v4l2src
> gstv4l2src.c:861:gst_v4l2src_fill:<v4l2src0> sync to 0:00:34.199999658 out
> ts 0:00:34.349578926
> 0:00:34.760697434 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:1059:gst_v4l2_buffer_pool_release_buffer:<v4l2bufferpool0>
> release buffer 0x7f09cc007180
> 0:00:34.762284743 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:673:gst_v4l2_buffer_pool_qbuf:<v4l2bufferpool0> enqueue
> buffer 0x7f09cc007180, index:1, queued:3, flags:00002003 used:0
> 0:00:34.762355236 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:684:gst_v4l2_buffer_pool_qbuf:<v4l2bufferpool0> doing
> QBUF
> 0:00:34.762413220 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:958:gst_v4l2_buffer_pool_acquire_buffer:<v4l2bufferpool0>
> acquire
> 0:00:34.762431855 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:622:gst_v4l2_object_poll:<v4l2src0> polling device
> 0:00:34.785921654 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:744:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> doing
> DQBUF
> 0:00:34.786001454 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:769:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> dequeued buffer 0x7f09cc007290 seq:1027 (ix=2), used 220797, flags
> 00002005, ts 2:07:27.954131000, pool-queued=3, buffer=0x7f09cc007290
> 0:00:34.786071639 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (13383). JPG: 0-8 - APP4: 8 - 13393
> 0:00:34.786097865 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:844:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> New
> auxiliary stream : v1 - 22 bytes - H264 1920x1080 -- 333333 *100ns -- 27 ms
> -- 861981296
> 0:00:34.786130509 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:846:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> Auxiliary stream size : 13355 bytes
> 0:00:34.786148983 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 13393-13393 - APP4: 13393 - 78928
> 0:00:34.786172606 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:844:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> New
> auxiliary stream : v1 - 22 bytes - YUY2 432x240 -- 333333 *100ns -- 27 ms
> -- 861981296
> 0:00:34.786202392 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:846:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> Auxiliary stream size : 207360 bytes
> 0:00:34.786220272 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 78928-78928 - APP4: 78928 - 144463
> 0:00:34.786243820 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 144463-144463 - APP4: 144463 - 209998
> 0:00:34.786267147 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (10795). JPG: 209998-209998 - APP4: 209998 - 220795
> 0:00:34.787331008 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:1297:gst_v4l2_buffer_pool_process:<v4l2bufferpool0>
> process buffer 0x7f09cc007290
> 0:00:34.787375096 18164 0x24dc540 DEBUG v4l2src
> gstv4l2src.c:823:gst_v4l2src_fill:<v4l2src0> ts: 2:07:27.954131000 now
> 2:07:28.118316091 delay 0:00:00.164185091
> 0:00:34.787414146 18164 0x24dc540 INFO v4l2src
> gstv4l2src.c:861:gst_v4l2src_fill:<v4l2src0> sync to 0:00:34.233332991 out
> ts 0:00:34.377885000
> 0:00:34.803475003 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:1059:gst_v4l2_buffer_pool_release_buffer:<v4l2bufferpool0>
> release buffer 0x7f09cc007290
> 0:00:34.803534728 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:673:gst_v4l2_buffer_pool_qbuf:<v4l2bufferpool0> enqueue
> buffer 0x7f09cc007290, index:2, queued:3, flags:00002003 used:0
> 0:00:34.803564449 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:684:gst_v4l2_buffer_pool_qbuf:<v4l2bufferpool0> doing
> QBUF
> 0:00:34.803616652 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:958:gst_v4l2_buffer_pool_acquire_buffer:<v4l2bufferpool0>
> acquire
> 0:00:34.803635030 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:622:gst_v4l2_object_poll:<v4l2src0> polling device
> 0:00:34.821867661 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:744:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> doing
> DQBUF
> 0:00:34.821948247 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:769:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> dequeued buffer 0x7f09cc0073a0 seq:1028 (ix=3), used 219197, flags
> 00002005, ts 2:07:27.984812000, pool-queued=3, buffer=0x7f09cc0073a0
> 0:00:34.821997521 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (11783). JPG: 0-8 - APP4: 8 - 11793
> 0:00:34.822022755 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:844:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> New
> auxiliary stream : v1 - 22 bytes - H264 1920x1080 -- 333333 *100ns -- 27 ms
> -- 871930696
> 0:00:34.822075416 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:846:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> Auxiliary stream size : 11755 bytes
> 0:00:34.822094504 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 11793-11793 - APP4: 11793 - 77328
> 0:00:34.822118341 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:844:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> New
> auxiliary stream : v1 - 22 bytes - YUY2 432x240 -- 333333 *100ns -- 27 ms
> -- 871930696
> 0:00:34.822147929 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:846:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> Auxiliary stream size : 207360 bytes
> 0:00:34.822165758 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 77328-77328 - APP4: 77328 - 142863
> 0:00:34.822189117 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 142863-142863 - APP4: 142863 - 208398
> 0:00:34.822212495 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (10795). JPG: 208398-208398 - APP4: 208398 - 219195
> 0:00:34.823136797 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:1297:gst_v4l2_buffer_pool_process:<v4l2bufferpool0>
> process buffer 0x7f09cc0073a0
> 0:00:34.823179754 18164 0x24dc540 DEBUG v4l2src
> gstv4l2src.c:823:gst_v4l2src_fill:<v4l2src0> ts: 2:07:27.984812000 now
> 2:07:28.154120648 delay 0:00:00.169308648
> 0:00:34.823217913 18164 0x24dc540 INFO v4l2src
> gstv4l2src.c:861:gst_v4l2src_fill:<v4l2src0> sync to 0:00:34.266666324 out
> ts 0:00:34.408566245
> 0:00:34.830053681 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:1059:gst_v4l2_buffer_pool_release_buffer:<v4l2bufferpool0>
> release buffer 0x7f09cc0073a0
> 0:00:34.830073738 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:673:gst_v4l2_buffer_pool_qbuf:<v4l2bufferpool0> enqueue
> buffer 0x7f09cc0073a0, index:3, queued:3, flags:00002003 used:0
> 0:00:34.830082068 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:684:gst_v4l2_buffer_pool_qbuf:<v4l2bufferpool0> doing
> QBUF
> 0:00:34.830100625 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:958:gst_v4l2_buffer_pool_acquire_buffer:<v4l2bufferpool0>
> acquire
> 0:00:34.830105812 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:622:gst_v4l2_object_poll:<v4l2src0> polling device
> 0:00:34.853864565 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:744:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> doing
> DQBUF
> 0:00:34.853944863 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:769:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> dequeued buffer 0x7f09cc007070 seq:1029 (ix=0), used 220255, flags
> 00002005, ts 2:07:28.014506000, pool-queued=3, buffer=0x7f09cc007070
> 0:00:34.853994541 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (12588). JPG: 0-8 - APP4: 8 - 12598
> 0:00:34.854020604 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:844:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> New
> auxiliary stream : v1 - 22 bytes - H264 1920x1080 -- 333333 *100ns -- 27 ms
> -- 841978096
> 0:00:34.854052921 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:846:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> Auxiliary stream size : 12560 bytes
> 0:00:34.854071133 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 12598-12598 - APP4: 12598 - 78133
> 0:00:34.854095317 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:844:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> New
> auxiliary stream : v1 - 22 bytes - YUY2 432x240 -- 333333 *100ns -- 27 ms
> -- 841978096
> 0:00:34.854151079 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:846:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> Auxiliary stream size : 207360 bytes
> 0:00:34.854170560 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 78133-78133 - APP4: 78133 - 143668
> 0:00:34.854194410 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 143668-143668 - APP4: 143668 - 209203
> 0:00:34.854217999 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (10795). JPG: 209203-209203 - APP4: 209203 - 220000
> 0:00:34.854251496 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:1297:gst_v4l2_buffer_pool_process:<v4l2bufferpool0>
> process buffer 0x7f09cc007070
> 0:00:34.854279734 18164 0x24dc540 DEBUG v4l2src
> gstv4l2src.c:823:gst_v4l2src_fill:<v4l2src0> ts: 2:07:28.014506000 now
> 2:07:28.185221186 delay 0:00:00.170715186
> 0:00:34.854317178 18164 0x24dc540 INFO v4l2src
> gstv4l2src.c:861:gst_v4l2src_fill:<v4l2src0> sync to 0:00:34.299999657 out
> ts 0:00:34.438260208
> 0:00:34.859671723 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:1059:gst_v4l2_buffer_pool_release_buffer:<v4l2bufferpool0>
> release buffer 0x7f09cc007070
> 0:00:34.860125069 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:673:gst_v4l2_buffer_pool_qbuf:<v4l2bufferpool0> enqueue
> buffer 0x7f09cc007070, index:0, queued:3, flags:00002003 used:0
> 0:00:34.860185269 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:684:gst_v4l2_buffer_pool_qbuf:<v4l2bufferpool0> doing
> QBUF
> 0:00:34.860240855 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:958:gst_v4l2_buffer_pool_acquire_buffer:<v4l2bufferpool0>
> acquire
> 0:00:34.860259854 18164 0x24dc540 LOG v4l2 gstv4l2bufferpool.c:622:gst_v4l2_object_poll:<v4l2src0>
> polling device
> 0:00:34.885909249 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:744:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> doing
> DQBUF
> 0:00:34.885997069 18164 0x24dc540 LOG v4l2
> gstv4l2bufferpool.c:769:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> dequeued buffer 0x7f09cc007180 seq:1030 (ix=1), used 219350, flags
> 00002005, ts 2:07:28.044033000, pool-queued=3, buffer=0x7f09cc007180
> 0:00:34.886050406 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (12212). JPG: 0-8 - APP4: 8 - 12222
> 0:00:34.886076131 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:844:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> New
> auxiliary stream : v1 - 22 bytes - H264 1920x1080 -- 333333 *100ns -- 28 ms
> -- 851930696
> 0:00:34.886108385 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:846:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> Auxiliary stream size : 12184 bytes
> 0:00:34.886126568 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 12222-12222 - APP4: 12222 - 77757
> 0:00:34.886150287 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:844:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> New
> auxiliary stream : v1 - 22 bytes - YUY2 432x240 -- 333333 *100ns -- 28 ms
> -- 851930696
> 0:00:34.886180086 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:846:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0>
> Auxiliary stream size : 207360 bytes
> 0:00:34.886198325 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 77757-77757 - APP4: 77757 - 143292
> 0:00:34.886245520 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (65533). JPG: 143292-143292 - APP4: 143292 - 208827
> 0:00:34.886270649 18164 0x24dc540 DEBUG v4l2
> gstv4l2bufferpool.c:804:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> Found
> APP4 marker (10795). JPG: 208827-208827 - APP4: 208827 - 219624
> 0:00:34.886297199 18164 0x24dc540 WARN v4l2
> gstv4l2bufferpool.c:808:gst_v4l2_buffer_pool_dqbuf:<v4l2bufferpool0> error:
> Not enough data to read marker content
>
> JPEG Container Parsing in UVC Driver (look at this section):
>
> [ 7628.214576] uvcvideo: uvc_v4l2_poll
> [ 7628.214647] uvcvideo: uvc_v4l2_ioctl(VIDIOC_DQBUF)
> [ 7628.214662] uvcvideo: HD Pro Webcam C920: PTS 871930696 y 3636.086044
> SOF 3636.086044 (x1 2149826048 x2 2179639848 y1 238747648 y2 244514816 SOF
> offset 16)
> [ 7628.214672] uvcvideo: HD Pro Webcam C920: SOF 3636.086044 y 932103987
> ts 7647.984812 buf ts 7648.140702 (x1 242745344/376/1595 x2
> 249298944/476/1683 y1 1000000000 y2 1099973580)
> [ 7628.222800] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QBUF)
> [ 7628.222825] uvcvideo: uvc_v4l2_poll
> [ 7628.234409] uvcvideo: frame 1029 stats: 0/1/77 packets, 0/0/77 pts
> (!early initial), 76/77 scr, last pts/stc/sof 871930696/904258496/44675
> [ 7628.246386] uvcvideo: Frame complete (EOF found buf->bytesused=220255).
> [ 7628.246393] uvcvideo: EOF in empty payload.
> [ 7628.246398] uvcvideo: Found APP4 marker (12841). JPG: 0-8 - APP4: 8 -
> 12851
> [ 7628.246404] uvcvideo: New auxiliary stream : v1 - 22 bytes - H264
> 1920x1080 -- 333333 *100ns -- 28 ms -- -1057844940
> [ 7628.246408] uvcvideo: Auxiliary stream size : 12813 bytes
> [ 7628.246413] uvcvideo: Found APP4 marker (65533). JPG: 12851-12851 -
> APP4: 12851 - 78386
> [ 7628.246419] uvcvideo: New auxiliary stream : v1 - 22 bytes - YUY2
> 432x240 -- 333333 *100ns -- 28 ms -- -1057844940
> [ 7628.246422] uvcvideo: Auxiliary stream size : 207360 bytes
> [ 7628.246427] uvcvideo: Found APP4 marker (65533). JPG: 78386-78386 -
> APP4: 78386 - 143921
> [ 7628.246432] uvcvideo: Found APP4 marker (65533). JPG: 143921-143921 -
> APP4: 143921 - 209456
> [ 7628.246436] uvcvideo: Found APP4 marker (10795). JPG: 209456-209456 -
> APP4: 209456 - 220253
> [ 7628.246439] uvcvideo: Done parsing!
> [ 7628.246488] uvcvideo: uvc_v4l2_poll
> [ 7628.246561] uvcvideo: uvc_v4l2_ioctl(VIDIOC_DQBUF)
> [ 7628.246575] uvcvideo: HD Pro Webcam C920: PTS 881980096 y 3665.754104
> SOF 3665.754104 (x1 2149599248 x2 2179745248 y1 240648192 y2 246480896 SOF
> offset 16)
> [ 7628.246586] uvcvideo: HD Pro Webcam C920: SOF 3665.754104 y 929786295
> ts 7648.014506 buf ts 7648.172675 (x1 244842496/408/1624 x2
> 251396096/508/1713 y1 1000000000 y2 1099954174)
> [ 7628.252840] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QBUF)
> [ 7628.252914] uvcvideo: uvc_v4l2_poll
> [ 7628.270314] uvcvideo: frame 1030 stats: 0/1/78 packets, 0/0/78 pts
> (!early initial), 77/78 scr, last pts/stc/sof 881980096/914270496/44705
> [ 7628.278347] uvcvideo: Frame complete (EOF found buf->bytesused=219350).
> [ 7628.278354] uvcvideo: EOF in empty payload.
> [ 7628.278359] uvcvideo: Found APP4 marker (11936). JPG: 0-8 - APP4: 8 -
> 11946
> [ 7628.278366] uvcvideo: New auxiliary stream : v1 - 22 bytes - H264
> 1920x1080 -- 333333 *100ns -- 27 ms -- 1221077301
> [ 7628.278370] uvcvideo: Auxiliary stream size : 11908 bytes
> [ 7628.278375] uvcvideo: Found APP4 marker (65533). JPG: 11946-11946 -
> APP4: 11946 - 77481
> [ 7628.278381] uvcvideo: New auxiliary stream : v1 - 22 bytes - YUY2
> 432x240 -- 333333 *100ns -- 27 ms -- 1221077301
> [ 7628.278385] uvcvideo: Auxiliary stream size : 207360 bytes
> [ 7628.278389] uvcvideo: Found APP4 marker (65533). JPG: 77481-77481 -
> APP4: 77481 - 143016
> [ 7628.278394] uvcvideo: Found APP4 marker (65533). JPG: 143016-143016 -
> APP4: 143016 - 208551
> [ 7628.278399] uvcvideo: Found APP4 marker (10795). JPG: 208551-208551 -
> APP4: 208551 - 219348
> [ 7628.278402] uvcvideo: Done parsing!
> [ 7628.278446] uvcvideo: uvc_v4l2_poll
> [ 7628.278528] uvcvideo: uvc_v4l2_ioctl(VIDIOC_DQBUF)
> [ 7628.278544] uvcvideo: HD Pro Webcam C920: PTS 891930696 y 3695.288803
> SOF 3695.288803 (x1 2149421448 x2 2179619048 y1 242548736 y2 248381440 SOF
> offset 16)
> [ 7628.278554] uvcvideo: HD Pro Webcam C920: SOF 3695.288803 y 927303965
> ts 7648.044033 buf ts 7648.208679 (x1 246939648/440/1653 x2
> 253493248/28/1742 y1 1000000000 y2 1099979147)
> [ 7628.284296] uvcvideo: uvc_v4l2_ioctl(VIDIOC_QBUF)
> [ 7628.286442] uvcvideo: uvc_v4l2_ioctl(VIDIOC_STREAMOFF)
> [ 7628.424603] uvcvideo: uvc_v4l2_ioctl(VIDIOC_REQBUFS)
> [ 7628.425228] uvcvideo: uvc_v4l2_ioctl(unknown ioctl 'u', dir=rw, #33
> (0xc0107521))
> [ 7628.425493] uvcvideo: uvc_v4l2_ioctl(unknown ioctl 'u', dir=rw, #33
> (0xc0107521))
> [ 7628.441198] uvcvideo: uvc_v4l2_release
>
>
> On Wed, Aug 7, 2013 at 4:32 PM, Peter Rennert <p.rennert at cs.ucl.ac.uk>wrote:
>
>> Hi Rob,
>>
>>
>> On 08/07/2013 09:18 PM, Robert Krakora wrote:
>>
>>> Not enough data to read marker content
>>>
>>
>> This was the error we had at the very beginning. Is there again a buffer
>> that is not unreffed?
>>
>>
>> I did not have time to make another long running test, but I will try to
>> do it at the weekend with the patch I posted before:
>>
>>
>> diff --git a/sys/v4l2/gstv4l2bufferpool.c b/sys/v4l2/gstv4l2bufferpool.c
>> index 1e74fc7..3430b86 100644
>> --- a/sys/v4l2/gstv4l2bufferpool.c
>> +++ b/sys/v4l2/gstv4l2bufferpool.c
>> @@ -52,6 +52,9 @@
>> #define V4L2_FIELD_INTERLACED_BT 9
>> #endif
>>
>> +#ifndef VIDIOC_CREATE_BUFS
>> +#define VIDIOC_CREATE_BUFS
>> +#endif
>>
>> I initally defined VIDIOC_CREATE_BUFS (even though I have no idea what
>> that actually should be), because of this part of the v4l2-bufferpool:
>>
>> gstv4l2bufferpool.c
>> lines 855-868
>>
>> /* start copying buffers when we are running low on buffers */
>>
>> if (pool->num_queued < pool->copy_threshold) {
>> GstBuffer *copy;
>> #ifdef VIDIOC_CREATE_BUFS
>> if (pool->can_alloc) {
>> if (GST_BUFFER_POOL_CLASS (parent_class)->acquire_buffer
>> (bpool,
>> ©, params) == GST_FLOW_OK) {
>> gst_v4l2_buffer_pool_release_**buffer (bpool, copy);
>> break;
>> } else {
>> pool->can_alloc = FALSE;
>> }
>> }
>> #endif
>>
>>
>>
>> ______________________________**_________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.**freedesktop.org<gstreamer-devel at lists.freedesktop.org>
>> http://lists.freedesktop.org/**mailman/listinfo/gstreamer-**devel<http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel>
>>
>
>
>
> --
>
> Rob Krakora,
> Senior Software Engineer
>
> MessageNet Systems
> 101 E Carmel Dr, Suite 105
> Carmel, IN 46032
>
> MessageNetSystems.com<http://www.messagenetcommunicationsystems.com/?utm_source=email+signature&utm_medium=email&utm_campaign=email+signature+to+homepage>
> Rob.Krakora at MessageNetSystems.com <rob.krakora at messagenetsystems.com>
> P: 317.566.1677, 212
> F: 317.663.0808
>
> For the latest news, information, and blogs, please be sure to visit,
> follow, and like us...
>
>
> <http://www.messagenetcommunicationsystems.com/get-the-message-out-blog/?utm_source=email+signature&utm_medium=email&utm_campaign=gmail+signature+to+blog>
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>
--
Rob Krakora,
Senior Software Engineer
MessageNet Systems
101 E Carmel Dr, Suite 105
Carmel, IN 46032
MessageNetSystems.com<http://www.messagenetcommunicationsystems.com/?utm_source=email+signature&utm_medium=email&utm_campaign=email+signature+to+homepage>
Rob.Krakora at MessageNetSystems.com <rob.krakora at messagenetsystems.com>
P: 317.566.1677, 212
F: 317.663.0808
For the latest news, information, and blogs, please be sure to visit,
follow, and like us...
<http://www.messagenetcommunicationsystems.com/get-the-message-out-blog/?utm_source=email+signature&utm_medium=email&utm_campaign=gmail+signature+to+blog>
<http://www.youtube.com/user/MessageNetConnection/feed>
<http://www.linkedin.com/company/messagenet-systems>
<http://twitter.com/MessageNet> <http://www.facebook.com/MessageNetsystems>
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