Menu
▾
▴
Re: [gst-devel] how to create a pipeline to record video from camera?
|
From: Cai Y. <yua...@ti...> - 2010-12-23 08:32:39
|
Hi Michael: I tried command below and it works well: $ gst-launch-0.10 -e v4l2src num-buffers=200 ! 'video/x-raw-yuv,width=640,height=480,framerate=30/1' ! ffmpegcolorspace ! ffenc_mpeg4 ! mp4mux ! filesink location=test1.mp4 Setting pipeline to PAUSED ... Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... New clock: GstSystemClock Got EOS from element "pipeline0". Execution ended after 6682641000 ns. Setting pipeline to PAUSED ... Setting pipeline to READY ... Setting pipeline to NULL ... Freeing pipeline ... ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4) ========================================================================== Audio: no sound Starting playback... Movie-Aspect is 1.33:1 - prescaling to correct movie aspect. VO: [xv] 640x480 => 640x480 Planar YV12 V: 0.4 0/ 0 5% 0% 0.0% 0 0 Exiting... (End of file) Seems that you just can record MP4 file but can't playback. maybe you can try the command below to playback it in command line: $ gst-launch-0.10 filesrc location=test1.mp4 ! ffdemux_mov_mp4_m4a_3gp_3g2_mj2 ! ffdec_mpeg4 ! 'video/x-raw-yuv,width=640,height=480,framerate=30/1' ! ffmpegcolorspace ! xvimagesink BTW,you could use gst-inspect-0.10 as much as possible to guess and try the elements you want. On 12/23/2010 03:26 PM, michael wrote: > My Gstreamer and Plugins version is : > gst-ffmpeg-0.10.11 > gst-plugins-bad-0.10.20 > gst-plugins-base-0.10.30 > gst-plugins-good-0.10.25 > gst-plugins-ugly-0.10.16 > gstreamer-0.10.30 > So I think the version is ok, isn't it? > and the all plugin can run, so I think the supported library packages > is ready. > > On Thu, Dec 23, 2010 at 3:06 PM, sudarshan bisht > <bis...@gm... <mailto:bis...@gm...>> wrote: > > > Make sure you have all latest Gstreamer core, plugins and > supported library packages installed. > > > On Thu, Dec 23, 2010 at 12:22 PM, michael <mc...@gm... > <mailto:mc...@gm...>> wrote: > > Really!!?? but it's not work on my book!! God,, this issue > drives me crazy!! :( > > > On Thu, Dec 23, 2010 at 2:42 PM, liJin <lij...@gm... > <mailto:lij...@gm...>> wrote: > > Hi > > > gst-launch -e v4l2src ! > 'video/x-raw-yuv,width=320,height=240, framerate=30/1' ! > ffmpegcolorspace ! x264enc ! mp4mux ! filesink location=1.mp4 > > This pipeline working fine (4 me)......:) > > > On Thu, Dec 23, 2010 at 12:08 PM, michael > <mc...@gm... <mailto:mc...@gm...>> wrote: > > Is there nobody know how to record video from camera > to a MP4 container with the H264 encoding ? > > > On Thu, Dec 23, 2010 at 9:46 AM, michael > <mc...@gm... <mailto:mc...@gm...>> wrote: > > neither qtmux nor mp4mux is not work well > > > On Wed, Dec 22, 2010 at 11:24 PM, Timothy Braun > <bra...@gm... > <mailto:bra...@gm...>> wrote: > > Not qtmux, use mp4mux. > > > On Wed, Dec 22, 2010 at 10:10 AM, michael > <mc...@gm... <mailto:mc...@gm...>> > wrote: > > I have tested changing the muxer to qtmux, > but it still not work > > > On Wed, Dec 22, 2010 at 10:58 PM, Timothy > Braun <bra...@gm... > <mailto:bra...@gm...>> wrote: > > I was never able to get the ffmpeg > mpeg4 mixer to work quite right. I > found that mp4mux, an extension of > qtmux, works much better. If you > inspect the ffmpeg mp4 muxer they > actually suggest that you use a > different one as it's unstable. > > Best, > Tim > > Sent from my iPhone > > On Dec 22, 2010, at 8:27 AM, michael > <mc...@gm... > <mailto:mc...@gm...>> wrote: > >> I just ran it : >> gst-launch -e v4l2src num-buffers=200 >> ! >> video/x-raw-yuv,width=640,height=480,framerate=30/1 >> ! ffmpegcolorspace ! ffenc_mpeg4 ! >> mp4mux ! filesink location=record.mp4 >> And got a mp4 file , but it still >> cannot be playbacked, and give the >> error info: >> Playing record.mp4. >> libavformat file format detected. >> [mpeg4 @ 0x9376c10]hmm, seems the >> headers are not complete, trying to >> guess time_increment_bits >> [mpeg4 @ 0x9376c10]my guess is 5 bits ;) >> [mpeg4 @ 0x9376c10]looks like this >> file was encoded with >> (divx4/(old)xvid/opendivx) -> forcing >> low_delay flag >> [mpeg4 @ 0x9376c10]picture size >> invalid (0x0) >> [mpeg4 @ 0x9376c10]get_buffer() >> failed (-1 0 0 (nil)) >> [mov,mp4,m4a,3gp,3g2,mj2 @ >> 0x9375640]Could not find codec >> parameters (Video: mpeg4, yuv420p) >> LAVF_header: av_find_stream_info() failed >> ISO: File Type Major Brand: ISO/IEC >> 14496-1 (MPEG-4 system) v2 >> Quicktime/MOV file format detected. >> [mov] Video stream found, -vid 0 >> VIDEO: [mp4v] 640x480 24bpp inf >> fps 0.0 kbps ( 0.0 kbyte/s) >> open: No such file or directory >> [MGA] Couldn't open: /dev/mga_vid >> open: No such file or directory >> [MGA] Couldn't open: /dev/mga_vid >> [VO_TDFXFB] Can't open /dev/fb0: >> Permission denied. >> [VO_3DFX] Unable to open /dev/3dfx. >> ========================================================================== >> Opening video decoder: [ffmpeg] >> FFmpeg's libavcodec codec family >> Selected video codec: [ffodivx] vfm: >> ffmpeg (FFmpeg MPEG-4) >> ========================================================================== >> Audio: no sound >> Starting playback... >> VDec: vo config request - 640 x 480 >> (preferred colorspace: Planar YV12) >> VDec: using Planar YV12 as output csp >> (no 0) >> Movie-Aspect is 1.33:1 - prescaling >> to correct movie aspect. >> VO: [xv] 640x480 => 640x480 Planar YV12 >> V: 0.0 200/200 ??% ??% ??,?% 0 0 >> >> Exiting... (End of file) >> >> But the error info not like the old one! >> >> On Wed, Dec 22, 2010 at 9:17 PM, >> liJin <lij...@gm... >> <mailto:lij...@gm...>> wrote: >> >> I think thats the issue... >> >> >> gst-launch -e v4l2src ! >> 'video/x-raw-yuv,width=320,height=240, >> framerate=30/1' ! >> ffmpegcolorspace ! ffenc_mpeg4 ! >> mp4mux ! filesink location=1.mp4 >> >> run with* -e *option >> >> >> >> On Wed, Dec 22, 2010 at 6:01 PM, >> Santakivi Topi >> <Top...@di... >> <mailto:Top...@di...>> wrote: >> >> On 12/22/2010 12:18 PM, >> michael wrote: >> > Now I can record the video >> to a AVI file with mpeg4 >> encoding by : >> > gst-launch v4l2src ! >> 'video/x-raw-yuv,width=320,height=240, >> > framerate=30/1' ! >> ffmpegcolorspace ! >> ffenc_mpeg4! avimux! filesink >> > location=record.avi >> > >> > But I got two issues: >> > 1: I want record as a MP4 >> file, I do it like this: >> > gst-launch v4l2src ! >> 'video/x-raw-yuv,width=320,height=240, >> > framerate=30/1' ! >> ffmpegcolorspace ! >> ffenc_mpeg4 ! mp4mux! filesink >> > location=record.avi >> > I can record the video , >> but when I playback it by >> mplayer, I got a error: >> > Playing ./record.mp4. >> > libavformat file format >> detected. >> > [mov,mp4,m4a,3gp,3g2,mj2 @ >> 0x8741640]moov atom not found >> > LAVF_header: >> av_open_input_stream() failed >> > ISO: File Type Major Brand: >> ISO/IEC 14496-1 (MPEG-4 >> system) v2 >> >> When recording, with the >> above gst-launch line, do you >> stop >> the pipeline with Ctrl+C..? >> >> It could be that the file >> container doesn't get fully >> written >> in case of such an interrupt >> and that's why the clip >> doesn't play. >> >> For example, if you use this >> pipeline and >> stop it with Ctrl+C, the clip >> doesn't play: >> >> gst-launch-0.10 videotestsrc ! >> 'video/x-raw-yuv,width=320,height=240,framerate=30/1' >> ! ffmpegcolorspace >> ! ffenc_mpeg4 ! mp4mux ! >> filesink location=test.mp4 >> >> But this pipeline produces a >> valid video file: >> >> gst-launch-0.10 videotestsrc >> num-buffers=200 ! >> 'video/x-raw-yuv,width=320,height=240,framerate=30/1' >> ! ffmpegcolorspace >> ! ffenc_mpeg4 ! mp4mux ! >> filesink location=test.mp4 >> >> > >> > 2: I want encode the video >> to H264, so I do like this: >> > gst-launch v4l2src ! >> 'video/x-raw-yuv,width=320,height=240, >> > framerate=30/1' ! >> ffmpegcolorspace ! x264enc! >> avimux ! filesink >> > location=record.avi >> >> How about adding the format >> to the caps, e.g . >> v4l2src ! >> 'video/x-raw-yuv,format=(fourcc)I420,width=320,height=240, >> framerate=30/1' ! >> fmpegcolorspace ! x264enc! >> avimux ! filesink >> location=record.avi ? >> >> BR, >> Topi >> >> > But when I run the pipeline >> I just get the error info >> like this: >> > Setting pipeline to PAUSED ... >> > Pipeline is live and does >> not need PREROLL ... >> > Setting pipeline to PLAYING ... >> > New clock: GstSystemClock >> > ERROR: from element >> /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: >> Internal >> > data flow error. >> > Additional debug info: >> > gstbasesrc.c(2550): >> gst_base_src_loop (): >> > >> /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: >> > streaming task paused, >> reason not-negotiated (-4) >> > Execution ended after >> 1727716724 ns. >> > Setting pipeline to PAUSED ... >> > Setting pipeline to READY ... >> > Setting pipeline to NULL ... >> > Freeing pipeline ... >> > >> > Some one can help me fix >> the issues? Tks :) >> > >> > >> > On 12/22/10, Timothy Braun >> <bra...@gm... >> <mailto:bra...@gm...> >> > >> <mailto:bra...@gm... <mailto:bra...@gm...>>> >> wrote: >> > > H264 is encoded with >> x264enc element. >> > > >> > > Sent from my iPhone >> > > >> > > On Dec 22, 2010, at 3:10 >> AM, wl2776 <wl...@gm... >> <mailto:wl...@gm...> >> > <mailto:wl...@gm... >> <mailto:wl...@gm...>>> >> wrote: >> > > >> > >> >> > >> >> > >> michael young wrote: >> > >>> >> > >>> And now , I want to >> record the video to a MP4 >> file with the h264 >> > encoding >> > >>> format , How can I do ? >> > >>> >> > >>> On Wed, Dec 22, 2010 at >> 2:26 PM, michael >> <mc...@gm... >> <mailto:mc...@gm...> >> > <mailto:mc...@gm... >> <mailto:mc...@gm...>>> >> wrote: >> > >>> >> > >>>> tks, this is work: >> gst-launch v4l2src >> device=/dev/video0 ! >> > >>>> >> 'video/x-raw-yuv,width=640,height=480,framerate=30/1' >> ! xvimagesink >> > >>> >> > >>> >> > >> >> > >> Looks like you can't, >> because h264 encoder is >> unavailable. >> > >> gst-inspect | grep h264 >> > >> doesn't show it. >> > >> However, general idea is >> to encode, then mux, and then >> save to a file. >> > >> gst-launch v4l2src >> device=/dev/video0 ! >> > >> >> 'video/x-raw-yuv,width=640,height=480,framerate=30/1' >> ! ffenc_mpeg4 ! >> > >> mp4mux !filesink >> location=/home/user/file. >> > >> >> > >> -- >> > >> View this message in >> context: >> > >> >> > >> http://gstreamer-devel.966125.n4.nabble.com/how-to-create-a-pipeline-to-record-video-from-camera-tp3134399p3160261.html >> > >> Sent from the >> GStreamer-devel mailing list >> archive at Nabble.com >> <http://Nabble.com>. >> > >> >> > >> >> > >> ------------------------------------------------------------------------------ >> > >> Forrester recently >> released a report on the >> Return on Investment >> > (ROI) of >> > >> Google Apps. They found >> a 300% ROI, 38%-56% cost >> savings, and break-even >> > >> within 7 months. Over 3 >> million businesses have gone >> Google with Google >> > >> Apps: >> > >> an online email >> calendar, and document >> program that's accessible >> > from your >> > >> >> > >> browser. Read the >> Forrester report: >> http://p.sf.net/sfu/googleapps-sfnew >> > >> >> _______________________________________________ >> > >> gstreamer-devel mailing list >> > >> >> gst...@li... >> <mailto:gst...@li...> >> > >> <mailto:gst...@li... >> <mailto:gst...@li...>> >> > >> >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel >> > > >> > > >> > >> ------------------------------------------------------------------------------ >> > > Forrester recently >> released a report on the >> Return on Investment (ROI) of >> > > Google Apps. They found a >> 300% ROI, 38%-56% cost >> savings, and break-even >> > > within 7 months. Over 3 >> million businesses have gone >> Google with Google >> > > Apps: >> > > an online email calendar, >> and document program that's >> accessible from >> > your >> > > browser. Read the >> Forrester report: >> http://p.sf.net/sfu/googleapps-sfnew >> > > >> _______________________________________________ >> > > gstreamer-devel mailing list >> > > >> gst...@li... >> <mailto:gst...@li...> >> > >> <mailto:gst...@li... >> <mailto:gst...@li...>> >> > > >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel >> > > >> >> ------------------------------------------------------------------------------ >> Forrester recently released a >> report on the Return on >> Investment (ROI) of >> Google Apps. They found a >> 300% ROI, 38%-56% cost >> savings, and break-even >> within 7 months. Over 3 >> million businesses have gone >> Google with Google Apps: >> an online email calendar, and >> document program that's >> accessible from your >> browser. Read the Forrester >> report: >> http://p.sf.net/sfu/googleapps-sfnew >> _______________________________________________ >> gstreamer-devel mailing list >> gst...@li... >> <mailto:gst...@li...> >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel >> >> >> >> ------------------------------------------------------------------------------ >> Forrester recently released a >> report on the Return on >> Investment (ROI) of >> Google Apps. They found a 300% >> ROI, 38%-56% cost savings, and >> break-even >> within 7 months. Over 3 million >> businesses have gone Google with >> Google Apps: >> an online email calendar, and >> document program that's >> accessible from your >> browser. Read the Forrester >> report: >> http://p.sf.net/sfu/googleapps-sfnew >> _______________________________________________ >> gstreamer-devel mailing list >> gst...@li... >> <mailto:gst...@li...> >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel >> >> >> ------------------------------------------------------------------------------ >> Forrester recently released a report >> on the Return on Investment (ROI) of >> Google Apps. They found a 300% ROI, >> 38%-56% cost savings, and break-even >> within 7 months. Over 3 million >> businesses have gone Google with >> Google Apps: >> an online email calendar, and >> document program that's accessible >> from your >> browser. Read the Forrester report: >> http://p.sf.net/sfu/googleapps-sfnew >> _______________________________________________ >> gstreamer-devel mailing list >> gst...@li... >> <mailto:gst...@li...> >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > ------------------------------------------------------------------------------ > Forrester recently released a report > on the Return on Investment (ROI) of > Google Apps. They found a 300% ROI, > 38%-56% cost savings, and break-even > within 7 months. Over 3 million > businesses have gone Google with > Google Apps: > an online email calendar, and document > program that's accessible from your > browser. Read the Forrester report: > http://p.sf.net/sfu/googleapps-sfnew > _______________________________________________ > gstreamer-devel mailing list > gst...@li... > <mailto:gst...@li...> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > > > ------------------------------------------------------------------------------ > Forrester recently released a report on > the Return on Investment (ROI) of > Google Apps. They found a 300% ROI, > 38%-56% cost savings, and break-even > within 7 months. Over 3 million > businesses have gone Google with Google Apps: > an online email calendar, and document > program that's accessible from your > browser. Read the Forrester report: > http://p.sf.net/sfu/googleapps-sfnew > _______________________________________________ > gstreamer-devel mailing list > gst...@li... > <mailto:gst...@li...> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > > > ------------------------------------------------------------------------------ > Forrester recently released a report on the > Return on Investment (ROI) of > Google Apps. They found a 300% ROI, 38%-56% > cost savings, and break-even > within 7 months. Over 3 million businesses > have gone Google with Google Apps: > an online email calendar, and document program > that's accessible from your > browser. Read the Forrester report: > http://p.sf.net/sfu/googleapps-sfnew > _______________________________________________ > gstreamer-devel mailing list > gst...@li... > <mailto:gst...@li...> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > > > > ------------------------------------------------------------------------------ > Learn how Oracle Real Application Clusters (RAC) One > Node allows customers > to consolidate database storage, standardize their > database environment, and, > should the need arise, upgrade to a full multi-node > Oracle RAC database > without downtime or disruption > http://p.sf.net/sfu/oracle-sfdevnl > > _______________________________________________ > gstreamer-devel mailing list > gst...@li... > <mailto:gst...@li...> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > > > ------------------------------------------------------------------------------ > Learn how Oracle Real Application Clusters (RAC) One Node > allows customers > to consolidate database storage, standardize their > database environment, and, > should the need arise, upgrade to a full multi-node Oracle > RAC database > without downtime or disruption > http://p.sf.net/sfu/oracle-sfdevnl > _______________________________________________ > gstreamer-devel mailing list > gst...@li... > <mailto:gst...@li...> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > > > ------------------------------------------------------------------------------ > Learn how Oracle Real Application Clusters (RAC) One Node > allows customers > to consolidate database storage, standardize their database > environment, and, > should the need arise, upgrade to a full multi-node Oracle RAC > database > without downtime or disruption > http://p.sf.net/sfu/oracle-sfdevnl > _______________________________________________ > gstreamer-devel mailing list > gst...@li... > <mailto:gst...@li...> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > > > > -- > Regards, > > Sudarshan Bisht > > ------------------------------------------------------------------------------ > Learn how Oracle Real Application Clusters (RAC) One Node allows > customers > to consolidate database storage, standardize their database > environment, and, > should the need arise, upgrade to a full multi-node Oracle RAC > database > without downtime or disruption > http://p.sf.net/sfu/oracle-sfdevnl > _______________________________________________ > gstreamer-devel mailing list > gst...@li... > <mailto:gst...@li...> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > -- B.R Cai Yuanqing |