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gstreamer和mp4或帶音頻的avi輸出

2012-01-04 109 views
3

我有下面的語法，它將在屏幕上顯示我的網絡攝像頭的視頻並將視頻編碼爲ogv文件。 我想要做的是在屏幕上顯示視頻，但將其從ogv文件更改爲mp4和/或avi文件並錄製音頻，有人可以幫助我解決這個問題。gstreamer和mp4或帶音頻的avi輸出

由於下面的代碼下面的作品的代碼本身適用於OGV文件 我使用Ubuntu 10.04 64位Linux和羅技C600網絡攝像頭

：

gst-launch-0.10 v4l2src ! 'video/x-raw-yuv,width=640,height=480,framerate=30/1' ! \ 
timeoverlay halignment=right valignment=bottom shaded-background=true ! \ 
clockoverlay halignment=left valignment=bottom text="M/D/Y:" shaded-background=true time-format="%m/%d/%Y %H:%M:%S" ! \ 
tee name=t_vid ! queue ! xvimagesink sync=false t_vid. ! queue ! videorate ! \ 
'video/x-raw-yuv,framerate=30/1' ! theoraenc ! queue ! oggmux ! \ 
filesink location=testogg.ogv

我試圖結合兩種不同的工作代碼段以查看它是否可行。頂部代碼和底部代碼

下面的代碼自身工作;

gst-launch-0.10 videotestsrc num-buffers=250 \ 
! 'video/x-raw-yuv,format=(fourcc)I420,width=320,height=240,framerate=25/1' \ 
! xvidenc ! queue ! mux. \ 
audiotestsrc num-buffers=440 ! audioconvert ! 'audio/x-raw-int,rate=44100,channels=2' \ 
! lame ! queue ! mux. \ 
avimux name=mux ! filesink location=test.avi

我拼湊

的代碼合併不起作用：

gst-launch-0.10 v4l2src ! 'video/x-raw-yuv,width=640,height=480,framerate=25/1' ! \ 
timeoverlay halignment=right valignment=bottom shaded-background=true ! \ 
clockoverlay halignment=left valignment=bottom text="M/D/Y:" shaded-background=true time-format="%m/%d/%Y %H:%M:%S" ! \ 
tee name=t_vid ! queue ! xvimagesink sync=false t_vid. ! queue ! videorate ! \ 
'video/x-raw-yuv,framerate=25/1' ! xvidenc ! queue ! mux. ! \ 
avimux name=mux ! filesink location=testavirt.avi

但是我得到一個錯誤信息 「警告：錯誤管道：鏈接不提供源元素」

我試圖使用這個編解碼器的原因是讓它在kdenlive中工作，這可以是非常特別是一種編解碼器將導入

好，我推出了調試模式的GStreamer與下面

gst-launch-0.10 -v --gst-debug-level=3 ! v4l2src ! 'video/x-raw-yuv,width=640,height=480,framerate=25/1' ! \ 
timeoverlay halignment=right valignment=bottom shaded-background=true ! \ 
clockoverlay halignment=left valignment=bottom text="M/D/Y:" shaded-background=true time-format="%m/%d/%Y %H:%M:%S" ! \ 
tee name=t_vid ! queue ! xvimagesink sync=false t_vid. ! queue ! videorate ! \ 
'video/x-raw-yuv,framerate=25/1' ! xvidenc ! queue ! mux. ! \ 
avimux name=mux ! filesink location=testavirt.avi

代碼建議，如果你想將它帶回來這個調試信息

0:00:00.000783199 16068  0xade080 INFO    GST_INIT gstquery.c:107:_gst_query_initialize: init queries 
0:00:00.001852610 16068  0xade080 INFO    GST_INIT gstmessage.c:73:_gst_message_initialize: init messages 
0:00:00.002272948 16068  0xade080 INFO  GST_PLUGIN_LOADING gstplugin.c:350:_gst_plugin_initialize: registering 0 static plugins 
0:00:00.002463561 16068  0xade080 INFO  GST_PLUGIN_LOADING gstplugin.c:255:gst_plugin_register_static: registered static plugin "staticelements" 
0:00:00.002486054 16068  0xade080 INFO  GST_PLUGIN_LOADING gstplugin.c:257:gst_plugin_register_static: added static plugin "staticelements", result: 1 
0:00:00.003105961 16068  0xade080 INFO   GST_REGISTRY gstregistry.c:1611:ensure_current_registry: reading registry cache: /home/rat/.gstreamer-0.10/registry.x86_64.bin 
0:00:00.019757535 16068  0xade080 INFO   GST_REGISTRY gstregistrybinary.c:614:gst_registry_binary_read_cache: loaded /home/rat/.gstreamer-0.10/registry.x86_64.bin in 0.016615 seconds 
0:00:00.019860736 16068  0xade080 INFO   GST_REGISTRY gstregistry.c:1471:scan_and_update_registry: Validating plugins from registry cache: /home/rat/.gstreamer-0.10/registry.x86_64.bin 
0:00:00.021184812 16068  0xade080 INFO   GST_REGISTRY gstregistry.c:1573:scan_and_update_registry: Registry cache has not changed 
0:00:00.021194999 16068  0xade080 INFO   GST_REGISTRY gstregistry.c:1640:ensure_current_registry: registry reading and updating done, result = 1 
0:00:00.021201052 16068  0xade080 INFO    GST_INIT gst.c:797:init_post: GLib runtime version: 2.24.1 
0:00:00.021208042 16068  0xade080 INFO    GST_INIT gst.c:799:init_post: GLib headers version: 2.24.1 
0:00:00.021241674 16068  0xade080 INFO   GST_PIPELINE gstparse.c:335:gst_parse_launch_full: parsing pipeline description '! v4l2src ! video/x-raw-yuv,width=640,height=480,framerate=25/1 ! timeoverlay halignment=right valignment=bottom shaded-background=true ! clockoverlay halignment=left valignment=bottom text=M/D/Y: shaded-background=true time-format=%m/%d/%Y\ %H:%M:%S ! tee name=t_vid ! queue ! xvimagesink sync=false t_vid. ! queue ! videorate ! video/x-raw-yuv,framerate=25/1 ! xvidenc ! queue ! mux. ! avimux name=mux ! filesink location=testavirt.avi ' 
0:00:00.022709253 16068  0xade080 INFO  GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/gstreamer-0.10/libgstvideo4linux2.so" loaded 
0:00:00.022725847 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "v4l2src" 
0:00:00.023022609 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.024528033 16068  0xade080 INFO  GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/gstreamer-0.10/libgstpango.so" loaded 
0:00:00.024541435 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "timeoverlay" 
0:00:00.024983829 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'video_sink' 
0:00:00.025034224 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.025085769 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "clockoverlay" 
0:00:00.025208997 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'video_sink' 
0:00:00.025256228 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.025569620 16068  0xade080 INFO  GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/gstreamer-0.10/libgstcoreelements.so" loaded 
0:00:00.025583335 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "tee" 
0:00:00.025655142 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'sink' 
0:00:00.025678269 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "queue" 
0:00:00.025770942 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'sink' 
0:00:00.025795370 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.026000635 16068  0xade080 INFO  GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/gstreamer-0.10/libgstxvimagesink.so" loaded 
0:00:00.026012901 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "xvimagesink" 
0:00:00.026142535 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'sink' 
0:00:00.026172194 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "queue" 
0:00:00.026202526 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'sink' 
0:00:00.026225449 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.027723125 16068  0xade080 INFO  GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/gstreamer-0.10/libgstvideorate.so" loaded 
0:00:00.027735129 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "videorate" 
0:00:00.027808311 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'sink' 
0:00:00.027834798 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.028089942 16068  0xade080 INFO  GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/gstreamer-0.10/libgstxvid.so" loaded 
0:00:00.028101728 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "xvidenc" 
0:00:00.028370479 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'sink' 
0:00:00.028400842 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.028481732 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "queue" 
0:00:00.028508557 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'sink' 
0:00:00.028536913 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.029064786 16068  0xade080 INFO  GST_PLUGIN_LOADING gstplugin.c:859:gst_plugin_load_file: plugin "/usr/lib/gstreamer-0.10/libgstavi.so" loaded 
0:00:00.029077092 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "avimux" 
0:00:00.029284486 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.029326884 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "filesink" 
0:00:00.029378045 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'sink' 
0:00:00.029412649 16068  0xade080 INFO    filesink gstfilesink.c:306:gst_file_sink_set_location: filename : testavirt.avi 
0:00:00.029420428 16068  0xade080 INFO    filesink gstfilesink.c:307:gst_file_sink_set_location: uri  : file:///home/rat/testavirt.avi 
0:00:00.029433307 16068  0xade080 ERROR   GST_PIPELINE ./grammar.y:799:_gst_parse_yyparse: link without source element 
0:00:00.029446312 16068  0xade080 ERROR   GST_PIPELINE ./grammar.y:862:_gst_parse_yyparse: link without source element 
0:00:00.029456839 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "pipeline" 
0:00:00.029535187 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking v4l2src0:(any) to timeoverlay0:(any) (0/0) with caps "video/x-raw-yuv, width=(int)640, height=(int)480, framerate=(fraction)25/1" 
0:00:00.029561950 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "capsfilter" 
0:00:00.029628904 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'sink' 
0:00:00.029654353 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.029668706 16068  0xade080 INFO    GST_STATES gstbin.c:1767:gst_bin_get_state_func:<pipeline0> getting state 
0:00:00.029686262 16068  0xade080 INFO    GST_STATES gstelement.c:2408:gst_element_continue_state:<capsfilter0> completed state change to NULL 
0:00:00.029703721 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element v4l2src0:(any) to element capsfilter0:sink 
0:00:00.029712366 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:969:gst_element_get_static_pad: found pad capsfilter0:sink 
0:00:00.029720912 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: v4l2src0 and capsfilter0 in same bin, no need for ghost pads 
0:00:00.029744719 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link v4l2src0:src and capsfilter0:sink 
0:00:00.049689595 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked v4l2src0:src and capsfilter0:sink, successful 
0:00:00.049761719 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element capsfilter0:src to element timeoverlay0:(any) 
0:00:00.049782927 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:969:gst_element_get_static_pad: found pad capsfilter0:src 
0:00:00.049801288 16068  0xade080 INFO    GST_PADS gstutils.c:1028:gst_pad_check_link: trying to link capsfilter0:src and timeoverlay0:video_sink 
0:00:00.050467449 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: capsfilter0 and timeoverlay0 in same bin, no need for ghost pads 
0:00:00.050498205 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link capsfilter0:src and timeoverlay0:video_sink 
0:00:00.051365172 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked capsfilter0:src and timeoverlay0:video_sink, successful 
0:00:00.051410274 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking timeoverlay0:(any) to clockoverlay0:(any) (0/0) with caps "(NULL)" 
0:00:00.051435266 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element timeoverlay0:(any) to element clockoverlay0:(any) 
0:00:00.051452770 16068  0xade080 INFO    GST_PADS gstutils.c:1028:gst_pad_check_link: trying to link timeoverlay0:src and clockoverlay0:video_sink 
0:00:00.052124174 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: timeoverlay0 and clockoverlay0 in same bin, no need for ghost pads 
0:00:00.052152481 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link timeoverlay0:src and clockoverlay0:video_sink 
0:00:00.052819379 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked timeoverlay0:src and clockoverlay0:video_sink, successful 
0:00:00.052851632 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking clockoverlay0:(any) to t_vid:(any) (0/0) with caps "(NULL)" 
0:00:00.052872037 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element clockoverlay0:(any) to element t_vid:(any) 
0:00:00.052888711 16068  0xade080 INFO    GST_PADS gstutils.c:1028:gst_pad_check_link: trying to link clockoverlay0:src and t_vid:sink 
0:00:00.053539972 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: clockoverlay0 and t_vid in same bin, no need for ghost pads 
0:00:00.053567822 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link clockoverlay0:src and t_vid:sink 
0:00:00.054209057 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked clockoverlay0:src and t_vid:sink, successful 
0:00:00.054240988 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking t_vid:(any) to queue0:(any) (0/0) with caps "(NULL)" 
0:00:00.054261353 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element t_vid:(any) to element queue0:(any) 
0:00:00.054357775 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<t_vid> adding pad 'src0' 
0:00:00.054391930 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: t_vid and queue0 in same bin, no need for ghost pads 
0:00:00.054416401 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link t_vid:src0 and queue0:sink 
0:00:00.055097197 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked t_vid:src0 and queue0:sink, successful 
0:00:00.055131050 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking queue0:(any) to xvimagesink0:(any) (0/0) with caps "(NULL)" 
0:00:00.055151268 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element queue0:(any) to element xvimagesink0:(any) 
0:00:00.055167783 16068  0xade080 INFO    GST_PADS gstutils.c:1028:gst_pad_check_link: trying to link queue0:src and xvimagesink0:sink 
0:00:00.055842243 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: queue0 and xvimagesink0 in same bin, no need for ghost pads 
0:00:00.055870005 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link queue0:src and xvimagesink0:sink 
0:00:00.056567773 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked queue0:src and xvimagesink0:sink, successful 
0:00:00.056606717 16068  0xade080 INFO   GST_PARENTAGE gstbin.c:3707:gst_bin_get_by_name: [pipeline0]: looking up child element t_vid 
0:00:00.056632626 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking t_vid:t_vid to queue1:(any) (0/0) with caps "(NULL)" 
0:00:00.056651644 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element t_vid:(any) to element queue1:(any) 
0:00:00.056719250 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<t_vid> adding pad 'src1' 
0:00:00.056741754 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: t_vid and queue1 in same bin, no need for ghost pads 
0:00:00.056764926 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link t_vid:src1 and queue1:sink 
0:00:00.057431047 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked t_vid:src1 and queue1:sink, successful 
0:00:00.057462976 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking queue1:(any) to videorate0:(any) (0/0) with caps "(NULL)" 
0:00:00.057520574 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element queue1:(any) to element videorate0:(any) 
0:00:00.057541803 16068  0xade080 INFO    GST_PADS gstutils.c:1028:gst_pad_check_link: trying to link queue1:src and videorate0:sink 
0:00:00.058218898 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: queue1 and videorate0 in same bin, no need for ghost pads 
0:00:00.058247509 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link queue1:src and videorate0:sink 
0:00:00.058913420 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked queue1:src and videorate0:sink, successful 
0:00:00.058945216 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking videorate0:(any) to xvidenc0:(any) (0/0) with caps "video/x-raw-yuv, framerate=(fraction)25/1" 
0:00:00.058980252 16068  0xade080 INFO  GST_ELEMENT_FACTORY gstelementfactory.c:375:gst_element_factory_create: creating element "capsfilter" 
0:00:00.059030050 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'sink' 
0:00:00.059070176 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<[email protected]> adding pad 'src' 
0:00:00.059099030 16068  0xade080 INFO    GST_STATES gstbin.c:1767:gst_bin_get_state_func:<pipeline0> getting state 
0:00:00.059133982 16068  0xade080 INFO    GST_STATES gstelement.c:2408:gst_element_continue_state:<capsfilter1> completed state change to NULL 
0:00:00.059161447 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element videorate0:(any) to element capsfilter1:sink 
0:00:00.059178858 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:969:gst_element_get_static_pad: found pad capsfilter1:sink 
0:00:00.059192810 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: videorate0 and capsfilter1 in same bin, no need for ghost pads 
0:00:00.059215498 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link videorate0:src and capsfilter1:sink 
0:00:00.059916866 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked videorate0:src and capsfilter1:sink, successful 
0:00:00.059949637 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element capsfilter1:src to element xvidenc0:(any) 
0:00:00.059966690 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:969:gst_element_get_static_pad: found pad capsfilter1:src 
0:00:00.059982820 16068  0xade080 INFO    GST_PADS gstutils.c:1028:gst_pad_check_link: trying to link capsfilter1:src and xvidenc0:sink 
0:00:00.060795894 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: capsfilter1 and xvidenc0 in same bin, no need for ghost pads 
0:00:00.060824501 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link capsfilter1:src and xvidenc0:sink 
0:00:00.061632768 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked capsfilter1:src and xvidenc0:sink, successful 
0:00:00.083857679 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking xvidenc0:(any) to queue2:(any) (0/0) with caps "(NULL)" 
0:00:00.083881589 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element xvidenc0:(any) to element queue2:(any) 
0:00:00.083891480 16068  0xade080 INFO    GST_PADS gstutils.c:1028:gst_pad_check_link: trying to link xvidenc0:src and queue2:sink 
0:00:00.083904166 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: xvidenc0 and queue2 in same bin, no need for ghost pads 
0:00:00.083914692 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link xvidenc0:src and queue2:sink 
0:00:00.083925117 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked xvidenc0:src and queue2:sink, successful 
0:00:00.083937094 16068  0xade080 INFO   GST_PARENTAGE gstbin.c:3707:gst_bin_get_by_name: [pipeline0]: looking up child element mux 
0:00:00.083947729 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking queue2:(any) to mux:mux (0/0) with caps "(NULL)" 
0:00:00.083955323 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element queue2:(any) to element mux:(any) 
0:00:00.084035330 16068  0xade080 INFO  GST_ELEMENT_PADS gstelement.c:722:gst_element_add_pad:<mux> adding pad 'video_00' 
0:00:00.084049981 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: queue2 and mux in same bin, no need for ghost pads 
0:00:00.084060734 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link queue2:src and mux:video_00 
0:00:00.084075560 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked queue2:src and mux:video_00, successful 
0:00:00.084087455 16068  0xade080 INFO   GST_PIPELINE ./grammar.y:568:gst_parse_perform_link: linking mux:(any) to filesink0:(any) (0/0) with caps "(NULL)" 
0:00:00.084095861 16068  0xade080 INFO  GST_ELEMENT_PADS gstutils.c:1694:gst_element_link_pads_full: trying to link element mux:(any) to element filesink0:(any) 
0:00:00.084103574 16068  0xade080 INFO    GST_PADS gstutils.c:1028:gst_pad_check_link: trying to link mux:src and filesink0:sink 
0:00:00.084114625 16068  0xade080 INFO    GST_PADS gstutils.c:1592:prepare_link_maybe_ghosting: mux and filesink0 in same bin, no need for ghost pads 
0:00:00.084124013 16068  0xade080 INFO    GST_PADS gstpad.c:1956:gst_pad_link_prepare: trying to link mux:src and filesink0:sink 
0:00:00.084131937 16068  0xade080 INFO    GST_PADS gstpad.c:2139:gst_pad_link_full: linked mux:src and filesink0:sink, successful 
WARNING: erroneous pipeline: link without source element 
[email protected]:~$

來源

2012-01-04 Rick T

+0

所有的驚歎號是什麼？ – sarnold 2012-01-04 01:35:08

+0

這是代碼的一部分.... http://www.twm-kd.com/linux/webcam-and-linux-gstreamer-tutorial/ – 2012-01-04 01:36:07

+0

哇，我覺得這是複製和粘貼的事故。你每天都會學到一些東西。 :) – sarnold 2012-01-04 01:39:46

回答

4

使用mp4或avi，您需要使用不同的編碼器。我推薦h264或mp4v。 h264enc是醜陋的插件包。

如果你想要去mp4路線，也許使用mp4v爲視頻和mp4a爲您的音頻。我目前沒有我的linux系統，所以這可能不是完美的。

gst-launch v4l2src ! your caps ! other elements ! tee name=t_vid ! \ 
    xvimagesink sync=false t_vid. ! queue ! caps adjustment if you need it ! \ 
    x264enc ! queue ! avi_mux. \ 
    alsasrc ! caps ! faac (or whatever will go with avi) ! avimux name=avi_mux ! \ 
    filesink location=testavi.avi

這裏是avi版本。很顯然，您可以將編碼器調整爲適用於容器的任何格式。如果您使用mp4mux，它非常相似，只需將我的avimux東西換成mp4mux即可。

您可能需要馴服alsamixer以確保管道從您的網絡攝像頭捕獲，而不是您的一個麥克風插孔。

此外，您可能需要使隊列緩衝區無限制，以減少延遲。

來源

2012-01-04 03:11:51

+0

感謝您的快速回復我嘗試添加您推薦的行，但無法讓他們工作我找到了一個編解碼器kdenlive將接受的xvidenc，但我得到一個gstreamer錯誤信息，我現在不知道如何解決任何想法如何我可以修復它「警告：錯誤的管道：沒有源元素的鏈接」 。我更新了問題以包含我正在使用的新行。再次感謝您的幫助 – 2012-01-04 15:13:51

+0

@RickT您的組合管線中沒有音頻部分。 – 2012-01-04 16:12:52

+0

此外，要找出是什麼導致您的錯誤在調試級別3中運行gst-launch。 – 2012-01-04 16:13:23

3

這裏就是我終於拼湊感謝喬納森·亨森在一起，如果有人有興趣

gst-launch-0.10 v4l2src ! 'video/x-raw-yuv,width=640,height=480,framerate=30/1' ! \ 
timeoverlay halignment=right valignment=bottom shaded-background=true ! \ 
clockoverlay halignment=left valignment=bottom text="M/D/Y:" shaded-background=true time-format="%m/%d/%Y %H:%M:%S" ! \ 
tee name=t_vid ! queue ! xvimagesink sync=false t_vid. ! videorate ! \ 
'video/x-raw-yuv,framerate=30/1' ! theoraenc ! queue ! mux. \ 
alsasrc device=plughw:1,0 ! audio/x-raw-int,rate=8000,channels=1,depth=16 ! \ 
audioconvert ! vorbisenc ! queue ! mux. \ 
oggmux name=mux ! filesink location=testogg.ogv

來源

2012-02-01 16:22:12

+0

我很高興你能工作。這可能令人沮喪，但是一旦你掌握了Gstreamer，你真的能夠以指數級的速度擴展你的能力。你是用api寫這個程序的，還是這只是命令行的東西？ – 2012-02-01 17:22:04

+1

目前我只是使用命令行測試水域。這個程序如此強大 – 2012-02-01 21:24:36

+0

只是等到你開始使用api時，你會發現你只碰到了冰山的一角。有很多精彩的設計，從gobject和glib（它提供了一個非常強大的反射形式，這是一個驚人的壯舉）開始於消息總線系統等等。 Gstreamer甜得可愛。 api也有很好的文檔記錄，這可能解釋了爲什麼基本上unix世界中的每個多媒體應用都使用它。 – 2012-02-01 21:36:46

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