GST_DEBUG=3 gst-launch -v v4l2src device=/dev/video0 ! fakesink 0:00:00.000581074 1193 0x16050 INFO GST_INIT gst.c:605:init_pre: Initializing GStreamer Core Library version 0.10.32 0:00:00.000824851 1193 0x16050 INFO GST_INIT gst.c:606:init_pre: Using library installed in /usr/lib 0:00:00.000914814 1193 0x16050 INFO GST_INIT gst.c:616:init_pre: Linux basicCON4121 2.6.37+ #2 Tue Apr 15 08:50:35 CEST 2014 armv7l 0:00:00.001488703 1193 0x16050 INFO GST_INIT gstquery.c:108:_gst_query_initialize: init queries 0:00:00.006331259 1193 0x16050 INFO GST_INIT gstmessage.c:73:_gst_message_initialize: init messages 0:00:00.007553296 1193 0x16050 INFO GST_PLUGIN_LOADING gstplugin.c:350:_gst_plugin_initialize: registering 0 static plugins 0:00:00.008369481 1193 0x16050 INFO GST_PLUGIN_LOADING gstplugin.c:255:gst_plugin_register_static: registered static plugin "staticelements" 0:00:00.008492037 1193 0x16050 INFO GST_PLUGIN_LOADING gstplugin.c:257:gst_plugin_register_static: added static plugin "staticelements", result: 1 0:00:00.013792185 1193 0x16050 INFO GST_REGISTRY gstregistry.c:1599:ensure_current_registry: reading registry cache: /home/root/.gstreamer-0.10/registry.arm.bin 0:00:00.173844445 1193 0x16050 INFO GST_REGISTRY gstregistrybinary.c:614:gst_registry_binary_read_cache: loaded /home/root/.gstreamer-0.10/registry.arm.bin in 0.1599 13 seconds 0:00:00.174191112 1193 0x16050 INFO GST_REGISTRY gstregistry.c:1469:scan_and_update_registry: Validating plugins from registry cache: /home/root/.gstreamer-0.10/regi stry.arm.bin 0:00:00.269032519 1193 0x16050 INFO GST_REGISTRY gstregistry.c:1561:scan_and_update_registry: Registry cache has not changed 0:00:00.269145000 1193 0x16050 INFO GST_REGISTRY gstregistry.c:1628:ensure_current_registry: registry reading and updating done, result = 1 0:00:00.269196185 1193 0x16050 INFO GST_INIT gst.c:792:init_post: GLib runtime version: 2.24.1 0:00:00.269247074 1193 0x16050 INFO GST_INIT gst.c:794:init_post: GLib headers version: 2.24.1 0:00:00.269467111 1193 0x16050 INFO GST_PIPELINE gstparse.c:299:gst_parse_launch_full: parsing pipeline description 'v4l2src device=/dev/video0 ! fakesink ' 0:00:00.419349296 1193 0x16050 INFO GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/gstreamer-0.10/libgstvideo4linux2.so" loaded 0:00:00.419473926 1193 0x16050 INFO GST_ELEMENT_FACTORY gstelementfactory.c:371:gst_element_factory_create: creating element "v4l2src" 0:00:00.423449186 1193 0x16050 INFO GST_ELEMENT_PADS gstelement.c:716:gst_element_add_pad: adding pad 'src' 0:00:00.488938519 1193 0x16050 INFO GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/gstreamer-0.10/libgstcoreelements.so" loaded 0:00:00.489063815 1193 0x16050 INFO GST_ELEMENT_FACTORY gstelementfactory.c:371:gst_element_factory_create: creating element "fakesink" 0:00:00.490085185 1193 0x16050 INFO GST_ELEMENT_PADS gstelement.c:716:gst_element_add_pad: adding pad 'sink' 0:00:00.490357445 1193 0x16050 INFO GST_ELEMENT_FACTORY gstelementfactory.c:371:gst_element_factory_create: creating element "pipeline" 0:00:00.490869556 1193 0x16050 INFO GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking v4l2src0:(any) to fakesink0:(any) (0/0) with caps "(nil)" 0:00:00.490976185 1193 0x16050 INFO GST_ELEMENT_PADS gstutils.c:1568:gst_element_link_pads_full: trying to link element v4l2src0:(any) to element fakesink0:(any) 0:00:00.491059778 1193 0x16050 INFO GST_PADS gstutils.c:1028:gst_pad_check_link: trying to link v4l2src0:src and fakesink0:sink 0:00:00.491866333 1193 0x16050 INFO GST_PADS gstutils.c:1468:prepare_link_maybe_ghosting: v4l2src0 and fakesink0 in same bin, no need for ghost pads 0:00:00.492400149 1193 0x16050 INFO GST_PADS gstpad.c:1941:gst_pad_link_prepare: trying to link v4l2src0:src and fakesink0:sink 0:00:00.493133334 1193 0x16050 INFO GST_PADS gstpad.c:2124:gst_pad_link_full: linked v4l2src0:src and fakesink0:sink, successful Setting pipeline to PAUSED ... 0:00:00.493800815 1193 0x16050 INFO GST_STATES gstelement.c:2341:gst_element_continue_state: completed state change to READY 0:00:00.493877704 1193 0x16050 INFO GST_STATES gstelement.c:2354:gst_element_continue_state: posting state-changed NULL to READY 0:00:00.494065519 1193 0x16050 INFO GST_STATES gstbin.c:2492:gst_bin_change_state_func: child 'fakesink0' changed state to 2(READY) successfully 0:00:00.494508075 1193 0x16050 INFO v4l2 v4l2_calls.c:480:gst_v4l2_open: Opened device 'TI81xx_catalogue' (/dev/video0) successfully 0:00:00.494716519 1193 0x16050 INFO GST_STATES gstelement.c:2341:gst_element_continue_state: completed state change to READY 0:00:00.494783556 1193 0x16050 INFO GST_STATES gstelement.c:2354:gst_element_continue_state: posting state-changed NULL to READY 0:00:00.494877519 1193 0x16050 INFO GST_STATES gstbin.c:2492:gst_bin_change_state_func: child 'v4l2src0' changed state to 2(READY) successfully 0:00:00.494986963 1193 0x16050 INFO GST_STATES gstelement.c:2314:gst_element_continue_state: committing state from NULL to READY, pending PAUSED, next P AUSED 0:00:00.496433334 1193 0x16050 INFO GST_STATES gstelement.c:2323:gst_element_continue_state: continue state change READY to PAUSED, final PAUSED 0:00:00.496753186 1193 0x16050 INFO GST_STATES gstbin.c:2498:gst_bin_change_state_func: child 'fakesink0' is changing state asynchronously to PAUSED 0:00:00.496954778 1193 0x16050 INFO v4l2 gstv4l2object.c:1036:gst_v4l2_object_fill_format_list: got 4 format(s): 0:00:00.497015482 1193 0x16050 INFO v4l2 gstv4l2object.c:1042:gst_v4l2_object_fill_format_list: NV12 0:00:00.497062778 1193 0x16050 INFO v4l2 gstv4l2object.c:1042:gst_v4l2_object_fill_format_list: YUYV 0:00:00.497106445 1193 0x16050 INFO v4l2 gstv4l2object.c:1042:gst_v4l2_object_fill_format_list: RGB3 0:00:00.497149371 1193 0x16050 INFO v4l2 gstv4l2object.c:1042:gst_v4l2_object_fill_format_list: NV16 0:00:00.497555148 1193 0x16050 INFO v4l2src gstv4l2src.c:611:gst_v4l2src_get_caps: probed caps: 0xac4a0 Mode set is 0 0:00:00.497920482 1193 0x16050 INFO v4l2 gstv4l2object.c:1525:gst_v4l2_object_get_caps_info: rowstride: 32768 0:00:00.497995334 1193 0x16050 WARN basesrc gstbasesrc.c:2778:gst_base_src_start: error: Could not negotiate format 0:00:00.498045667 1193 0x16050 WARN basesrc gstbasesrc.c:2778:gst_base_src_start: error: Check your filtered caps, if any 0:00:00.498162111 1193 0x16050 INFO GST_ERROR_SYSTEM gstelement.c:1865:gst_element_message_full: posting message: Could not negotiate format 0:00:00.498274630 1193 0x16050 INFO GST_ERROR_SYSTEM gstelement.c:1888:gst_element_message_full: posted error message: Could not negotiate format 0:00:00.498341815 1193 0x16050 WARN basesrc gstbasesrc.c:2974:gst_base_src_activate_push: Failed to start in push mode 0:00:00.498389741 1193 0x16050 INFO GST_PADS gstpad.c:983:gst_pad_activate_push: failed to activate in push mode 0:00:00.498445445 1193 0x16050 WARN GST_PADS gstpad.c:734:gst_pad_set_active: Failed to activate pad 0:00:00.498511519 1193 0x16050 INFO GST_STATES gstelement.c:2658:gst_element_change_state: have FAILURE change_state return 0:00:00.498566519 1193 0x16050 INFO GST_STATES gstelement.c:2235:gst_element_abort_state: aborting state from READY to PAUSED 0:00:00.498621111 1193 0x16050 INFO GST_STATES gstbin.c:2508:gst_bin_change_state_func: child 'v4l2src0' failed to go to state 3(PAUSED) 0:00:00.498743852 1193 0x16050 INFO GST_STATES gstelement.c:2658:gst_element_change_state: have FAILURE change_state return ERROR: Pipeline doesn't want to pause. ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Could not negotiate format Additional debug info: gstbasesrc.c(2778): gst_base_src_start (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Check your filtered caps, if any Setting pipeline to NULL ... 0:00:00.503326186 1193 0x16050 INFO GST_STATES gstelement.c:2314:gst_element_continue_state: committing state from READY to READY, pending NULL, next NU LL 0:00:00.503439260 1193 0x16050 INFO GST_STATES gstelement.c:2323:gst_element_continue_state: continue state change READY to NULL, final NULL 0:00:00.503524852 1193 0x16050 INFO GST_STATES gstelement.c:2341:gst_element_continue_state: completed state change to NULL 0:00:00.503579667 1193 0x16050 INFO GST_STATES gstelement.c:2354:gst_element_continue_state: posting state-changed READY to NULL 0:00:00.503657556 1193 0x16050 INFO GST_STATES gstbin.c:2492:gst_bin_change_state_func: child 'fakesink0' changed state to 1(NULL) successfully 0:00:00.503842852 1193 0x16050 INFO GST_STATES gstelement.c:2341:gst_element_continue_state: completed state change to NULL 0:00:00.503970963 1193 0x16050 INFO GST_STATES gstelement.c:2354:gst_element_continue_state: posting state-changed READY to NULL 0:00:00.504057186 1193 0x16050 INFO GST_STATES gstbin.c:2492:gst_bin_change_state_func: child 'v4l2src0' changed state to 1(NULL) successfully 0:00:00.504186408 1193 0x16050 INFO GST_STATES gstelement.c:2341:gst_element_continue_state: completed state change to NULL 0:00:00.504242778 1193 0x16050 INFO GST_STATES gstelement.c:2354:gst_element_continue_state: posting state-changed READY to NULL 0:00:00.504328482 1193 0x16050 INFO GST_STATES gstbin.c:1759:gst_bin_get_state_func: getting state Freeing pipeline ... 0:00:00.504492371 1193 0x16050 INFO GST_ELEMENT_PADS gstpad.c:1713:gst_pad_unlink: unlinking v4l2src0:src(0x13e000) and fakesink0:sink(0x13e0c8) 0:00:00.504608926 1193 0x16050 INFO GST_ELEMENT_PADS gstpad.c:1758:gst_pad_unlink: unlinked v4l2src0:src and fakesink0:sink 0:00:00.504720741 1193 0x16050 INFO GST_PARENTAGE gstbin.c:1440:gst_bin_remove_func: removed child "fakesink0" 0:00:00.504814408 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:2955:gst_element_dispose: dispose 0:00:00.504873000 1193 0x16050 INFO GST_ELEMENT_PADS gstelement.c:835:gst_element_remove_pad: removing pad 'sink' 0:00:00.505048889 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:2979:gst_element_dispose: parent class dispose 0:00:00.505120593 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:3010:gst_element_finalize: finalize 0:00:00.505179186 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:3021:gst_element_finalize: finalize parent 0:00:00.505253112 1193 0x16050 INFO GST_PARENTAGE gstbin.c:1440:gst_bin_remove_func: removed child "v4l2src0" 0:00:00.505347037 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:2955:gst_element_dispose: dispose 0:00:00.505402371 1193 0x16050 INFO GST_ELEMENT_PADS gstelement.c:835:gst_element_remove_pad: removing pad 'src' 0:00:00.505476741 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:2979:gst_element_dispose: parent class dispose 0:00:00.505596445 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:3010:gst_element_finalize: finalize 0:00:00.505659741 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:3021:gst_element_finalize: finalize parent 0:00:00.505719667 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:2955:gst_element_dispose: dispose 0:00:00.505799704 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:2979:gst_element_dispose: parent class dispose 0:00:00.505862260 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:3010:gst_element_finalize: finalize 0:00:00.505917630 1193 0x16050 INFO GST_REFCOUNTING gstelement.c:3021:gst_element_finalize: finalize parent 0:00:00.506031334 1193 0x16050 INFO GST_INIT gst.c:1010:gst_deinit: deinitializing GStreamer 0:00:00.522810815 1193 0x16050 INFO GST_INIT gst.c:1113:gst_deinit: deinitialized GStreamer