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I have a Video Capture card which I know works. I can run xawtv and
can see the video from my camera connected to the Composite input.
Xawtv allows me to save the configuration information and that is
below.
[ian@localhost ~]$ cat .xawtv [global] ratio = 4:3 freqtab = europe-west pixsize = 128 x 96 pixcols = 1 jpeg-quality = 75 keypad-ntsc = no keypad-partial = yes osd = yes osd-position = 30 , 20 use-wm-fullscreen = yes # [Station name] # capture = overlay | grabdisplay | on | off # input = Television | Composite1 | S-Video | ... # norm = PAL | NTSC | SECAM | ... # channel = # # fine = # (-128..+127) # key = keysym | modifier+keysym # color = # # bright = # # hue = # # contrast = # [defaults] group = main norm = PAL input = Composite1 capture = grab When I try to use GStreamer using the following command, I do not get the video input captured gst-launch-1.0 v4l2src !
'video/x-raw,format=(string)I420,width=320,height=240,framerate=(fraction)25/1'
!
queue ! mux. alsasrc num-buffers=440 ! audioconvert !
'audio/x-raw,rate=44100,channels=2' ! queue ! mux. avimux name=mux
!
filesink location=test.avi
I suspect that GStreamer is not defaulting to the Composite1 source, but some other - so how do I convince it to use the Composite1? Thanks --
-- Ian Davidson 239 Streetsbrook Road, Solihull, West Midlands, B91 1HE -- Facts used in this message may or may not reflect an underlying objective reality. Facts are supplied for personal use only. Recipients quoting supplied information do so at their own risk. Facts supplied may vary in whole or part from widely accepted standards. While painstakingly researched, facts may or may not be indicative of actually occurring events or natural phenomena. The author accepts no responsibility for personal loss or injury resulting from memorisation and subsequent use. _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Try using 'device' property of the v4l2src element.
For more info see: gst-inspect-1.0 v4l2src Kris On 11/12/12 11:23, Ian Davidson wrote: > I suspect that GStreamer is not defaulting to the Composite1 source, but > some other - so how do I convince it to use the Composite1? _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Thanks,
I changed the command to gst-launch-1.0 v4l2src norm=PAL ! 'video/x-raw,format=(string)I420,width=320,height=240,framerate=(fraction)25/1' ! queue ! mux. alsasrc num-buffers=440 ! audioconvert ! 'audio/x-raw,rate=44100,channels=2' ! queue ! mux. avimux name=mux ! filesink location=test.avi and that then captured the video. On 11/12/2012 11:32, Krzysztof Konopko
wrote:
Try using 'device' property of the v4l2src element. For more info see: gst-inspect-1.0 v4l2src Kris On 11/12/12 11:23, Ian Davidson wrote:I suspect that GStreamer is not defaulting to the Composite1 source, but some other - so how do I convince it to use the Composite1?_______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel --
-- Ian Davidson 239 Streetsbrook Road, Solihull, West Midlands, B91 1HE -- Facts used in this message may or may not reflect an underlying objective reality. Facts are supplied for personal use only. Recipients quoting supplied information do so at their own risk. Facts supplied may vary in whole or part from widely accepted standards. While painstakingly researched, facts may or may not be indicative of actually occurring events or natural phenomena. The author accepts no responsibility for personal loss or injury resulting from memorisation and subsequent use. _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Actually, not 100% success.
I reboot the computer and repeated the test and I think that this time, it picked up the 'Television' input again, not the Composite1. I have listed the output from gst-inspect-1.0 below. I do not see anything which relates to the input selection. [ian@localhost ~]$ gst-inspect-1.0 v4l2src
Factory Details: Rank: primary (256) Long-name: Video (video4linux2) Source Klass: Source/Video Description: Reads frames from a Video4Linux2 device Author: Edgard Lima [hidden email], Stefan Kost [hidden email] Plugin Details: Name: video4linux2 Description: elements for Video 4 Linux Filename: /usr/lib64/gstreamer-1.0/libgstvideo4linux2.so Version: 1.0.3 License: LGPL Source module: gst-plugins-good Source release date: 2012-11-21 Binary package: Fedora GStreamer-plugins-good package Origin URL: http://download.fedoraproject.org GObject +----GInitiallyUnowned +----GstObject +----GstElement +----GstBaseSrc +----GstPushSrc +----GstV4l2Src Implemented Interfaces: GstURIHandler GstTuner GstColorBalance GstVideoOrientation Pad Templates: SRC template: 'src' Availability: Always Capabilities: video/x-raw format: RGB15 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: RGB16 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: BGR width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: RGB width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: BGRx width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: RGBx width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: GRAY8 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: YVU9 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: YV12 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: YUY2 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: UYVY width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: Y42B width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: Y41B width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: NV12 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: NV21 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: YUV9 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: I420 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-bayer width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] image/jpeg width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] image/jpeg width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] image/jpeg width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-dv systemstream: true width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/mpegts video/x-h264 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-sonix width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-pwc1 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-pwc2 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: YVYU width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] Element Flags: no flags set Element Implementation: Has change_state() function: 0x7f1ee15510c0 Element has no clocking capabilities. Element has no indexing capabilities. URI handling capabilities: Element can act as source. Supported URI protocols: v4l2 Pads: SRC: 'src' Implementation: Has getrangefunc(): gst_base_src_getrange Has custom eventfunc(): gst_base_src_event Has custom queryfunc(): gst_base_src_query Has custom iterintlinkfunc(): gst_pad_iterate_internal_links_default Pad Template: 'src' Element Properties: name : The name of the object flags: readable, writable String. Default: "v4l2src0" parent : The parent of the object flags: readable, writable Object of type "GstObject" blocksize : Size in bytes to read per buffer (-1 = default) flags: readable, writable Unsigned Integer. Range: 0 - 4294967295 Default: 4096 num-buffers : Number of buffers to output before sending EOS (-1 = unlimited) flags: readable, writable Integer. Range: -1 - 2147483647 Default: -1 typefind : Run typefind before negotiating flags: readable, writable Boolean. Default: false do-timestamp : Apply current stream time to buffers flags: readable, writable Boolean. Default: false device : Device location flags: readable, writable String. Default: "/dev/video0" device-name : Name of the device flags: readable String. Default: "BT878 video (Pinnacle PCTV Stud" device-fd : File descriptor of the device flags: readable Integer. Range: -1 - 2147483647 Default: -1 flags : Device type flags flags: readable Flags "GstV4l2DeviceTypeFlags" Default: 0x00000000, "(none)" (0x00000001): capture - Device supports video capture (0x00000002): output - Device supports video playback (0x00000004): overlay - Device supports video overlay (0x00000010): vbi-capture - Device supports the VBI capture (0x00000020): vbi-output - Device supports the VBI output (0x00010000): tuner - Device has a tuner or modulator (0x00020000): audio - Device has audio inputs or outputs brightness : Picture brightness, or more precisely, the black level flags: readable, writable, controllable Integer. Range: -2147483648 - 2147483647 Default: 0 contrast : Picture contrast or luma gain flags: readable, writable, controllable Integer. Range: -2147483648 - 2147483647 Default: 0 saturation : Picture color saturation or chroma gain flags: readable, writable, controllable Integer. Range: -2147483648 - 2147483647 Default: 0 hue : Hue or color balance flags: readable, writable, controllable Integer. Range: -2147483648 - 2147483647 Default: 0 norm : video standard flags: readable, writable Enum "V4L2_TV_norms" Default: 0, "none" (0): none - none (45056): NTSC - NTSC (4096): NTSC-M - NTSC-M (8192): NTSC-M-JP - NTSC-M-JP (32768): NTSC-M-KR - NTSC-M-KR (16384): NTSC-443 - NTSC-443 (255): PAL - PAL (7): PAL-BG - PAL-BG (1): PAL-B - PAL-B (2): PAL-B1 - PAL-B1 (4): PAL-G - PAL-G (8): PAL-H - PAL-H (16): PAL-I - PAL-I (224): PAL-DK - PAL-DK (32): PAL-D - PAL-D (64): PAL-D1 - PAL-D1 (128): PAL-K - PAL-K (256): PAL-M - PAL-M (512): PAL-N - PAL-N (1024): PAL-Nc - PAL-Nc (2048): PAL-60 - PAL-60 (16711680): SECAM - SECAM (65536): SECAM-B - SECAM-B (262144): SECAM-G - SECAM-G (524288): SECAM-H - SECAM-H (3276800): SECAM-DK - SECAM-DK (131072): SECAM-D - SECAM-D (1048576): SECAM-K - SECAM-K (2097152): SECAM-K1 - SECAM-K1 (4194304): SECAM-L - SECAM-L (8388608): SECAM-Lc - SECAM-Lc io-mode : I/O mode flags: readable, writable Enum "GstV4l2IOMode" Default: 0, "auto" (0): auto - GST_V4L2_IO_AUTO (1): rw - GST_V4L2_IO_RW (2): mmap - GST_V4L2_IO_MMAP (3): userptr - GST_V4L2_IO_USERPTR Element Signals: "prepare-format" : void user_function (GstElement* object, gint arg0, guint arg1, guint arg2, guint arg3, gpointer user_data); [ian@localhost ~]$ On 11/12/2012 12:15, Ian Davidson
wrote:
Thanks, ... [show rest of quote]
--
-- Ian Davidson 239 Streetsbrook Road, Solihull, West Midlands, B91 1HE -- Facts used in this message may or may not reflect an underlying objective reality. Facts are supplied for personal use only. Recipients quoting supplied information do so at their own risk. Facts supplied may vary in whole or part from widely accepted standards. While painstakingly researched, facts may or may not be indicative of actually occurring events or natural phenomena. The author accepts no responsibility for personal loss or injury resulting from memorisation and subsequent use. _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Have a look at the 'device' property. Your input should be represented
as a device in the file system. You need to find out which one it is and set it through the 'device' property of the v4l2src element. Kris On 11/12/12 12:55, Ian Davidson wrote: > Actually, not 100% success. > > I reboot the computer and repeated the test and I think that this time, > it picked up the 'Television' input again, not the Composite1. > > I have listed the output from gst-inspect-1.0 below. I do not see > anything which relates to the input selection. > > [ian@localhost ~]$ gst-inspect-1.0 v4l2src > Factory Details: > Rank: primary (256) > Long-name: Video (video4linux2) Source > Klass: Source/Video > Description: Reads frames from a Video4Linux2 device > Author: Edgard Lima <[hidden email]>, Stefan Kost > <[hidden email]> > > Plugin Details: > Name: video4linux2 > Description: elements for Video 4 Linux > Filename: /usr/lib64/gstreamer-1.0/libgstvideo4linux2.so > Version: 1.0.3 > License: LGPL > Source module: gst-plugins-good > Source release date: 2012-11-21 > Binary package: Fedora GStreamer-plugins-good package > Origin URL: http://download.fedoraproject.org > > GObject > +----GInitiallyUnowned > +----GstObject > +----GstElement > +----GstBaseSrc > +----GstPushSrc > +----GstV4l2Src > > Implemented Interfaces: > GstURIHandler > GstTuner > GstColorBalance > GstVideoOrientation > > Pad Templates: > SRC template: 'src' > Availability: Always > Capabilities: > video/x-raw > format: RGB15 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: RGB16 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: BGR > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: RGB > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: BGRx > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: RGBx > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: GRAY8 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: YVU9 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: YV12 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: YUY2 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: UYVY > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: Y42B > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: Y41B > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: NV12 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: NV21 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: YUV9 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: I420 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-bayer > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > image/jpeg > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > image/jpeg > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > image/jpeg > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-dv > systemstream: true > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/mpegts > video/x-h264 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-sonix > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-pwc1 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-pwc2 > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > video/x-raw > format: YVYU > width: [ 1, 32768 ] > height: [ 1, 32768 ] > framerate: [ 0/1, 100/1 ] > > > Element Flags: > no flags set > > Element Implementation: > Has change_state() function: 0x7f1ee15510c0 > > Element has no clocking capabilities. > Element has no indexing capabilities. > > URI handling capabilities: > Element can act as source. > Supported URI protocols: > v4l2 > > Pads: > SRC: 'src' > Implementation: > Has getrangefunc(): gst_base_src_getrange > Has custom eventfunc(): gst_base_src_event > Has custom queryfunc(): gst_base_src_query > Has custom iterintlinkfunc(): gst_pad_iterate_internal_links_default > Pad Template: 'src' > > Element Properties: > name : The name of the object > flags: readable, writable > String. Default: "v4l2src0" > parent : The parent of the object > flags: readable, writable > Object of type "GstObject" > blocksize : Size in bytes to read per buffer (-1 = default) > flags: readable, writable > Unsigned Integer. Range: 0 - 4294967295 Default: > 4096 > num-buffers : Number of buffers to output before sending EOS > (-1 = unlimited) > flags: readable, writable > Integer. Range: -1 - 2147483647 Default: -1 > typefind : Run typefind before negotiating > flags: readable, writable > Boolean. Default: false > do-timestamp : Apply current stream time to buffers > flags: readable, writable > Boolean. Default: false > device : Device location > flags: readable, writable > String. Default: "/dev/video0" > device-name : Name of the device > flags: readable > String. Default: "BT878 video (Pinnacle PCTV Stud" > device-fd : File descriptor of the device > flags: readable > Integer. Range: -1 - 2147483647 Default: -1 > flags : Device type flags > flags: readable > Flags "GstV4l2DeviceTypeFlags" Default: > 0x00000000, "(none)" > (0x00000001): capture - Device > supports video capture > (0x00000002): output - Device > supports video playback > (0x00000004): overlay - Device > supports video overlay > (0x00000010): vbi-capture - Device > supports the VBI capture > (0x00000020): vbi-output - Device > supports the VBI output > (0x00010000): tuner - Device has a > tuner or modulator > (0x00020000): audio - Device has > audio inputs or outputs > brightness : Picture brightness, or more precisely, the black > level > flags: readable, writable, controllable > Integer. Range: -2147483648 - 2147483647 Default: 0 > contrast : Picture contrast or luma gain > flags: readable, writable, controllable > Integer. Range: -2147483648 - 2147483647 Default: 0 > saturation : Picture color saturation or chroma gain > flags: readable, writable, controllable > Integer. Range: -2147483648 - 2147483647 Default: 0 > hue : Hue or color balance > flags: readable, writable, controllable > Integer. Range: -2147483648 - 2147483647 Default: 0 > norm : video standard > flags: readable, writable > Enum "V4L2_TV_norms" Default: 0, "none" > (0): none - none > (45056): NTSC - NTSC > (4096): NTSC-M - NTSC-M > (8192): NTSC-M-JP - NTSC-M-JP > (32768): NTSC-M-KR - NTSC-M-KR > (16384): NTSC-443 - NTSC-443 > (255): PAL - PAL > (7): PAL-BG - PAL-BG > (1): PAL-B - PAL-B > (2): PAL-B1 - PAL-B1 > (4): PAL-G - PAL-G > (8): PAL-H - PAL-H > (16): PAL-I - PAL-I > (224): PAL-DK - PAL-DK > (32): PAL-D - PAL-D > (64): PAL-D1 - PAL-D1 > (128): PAL-K - PAL-K > (256): PAL-M - PAL-M > (512): PAL-N - PAL-N > (1024): PAL-Nc - PAL-Nc > (2048): PAL-60 - PAL-60 > (16711680): SECAM - SECAM > (65536): SECAM-B - SECAM-B > (262144): SECAM-G - SECAM-G > (524288): SECAM-H - SECAM-H > (3276800): SECAM-DK - SECAM-DK > (131072): SECAM-D - SECAM-D > (1048576): SECAM-K - SECAM-K > (2097152): SECAM-K1 - SECAM-K1 > (4194304): SECAM-L - SECAM-L > (8388608): SECAM-Lc - SECAM-Lc > io-mode : I/O mode > flags: readable, writable > Enum "GstV4l2IOMode" Default: 0, "auto" > (0): auto - GST_V4L2_IO_AUTO > (1): rw - GST_V4L2_IO_RW > (2): mmap - GST_V4L2_IO_MMAP > (3): userptr - GST_V4L2_IO_USERPTR > > Element Signals: > "prepare-format" : void user_function (GstElement* object, > gint arg0, > guint arg1, > guint arg2, > guint arg3, > gpointer user_data); > [ian@localhost ~]$ > > > On 11/12/2012 12:15, Ian Davidson wrote: >> Thanks, >> >> I changed the command to >> gst-launch-1.0 v4l2src norm=PAL ! >> 'video/x-raw,format=(string)I420,width=320,height=240,framerate=(fraction)25/1' >> ! queue ! mux. alsasrc num-buffers=440 ! audioconvert ! >> 'audio/x-raw,rate=44100,channels=2' ! queue ! mux. avimux name=mux ! >> filesink location=test.avi >> and that then captured the video. >> >> On 11/12/2012 11:32, Krzysztof Konopko wrote: >>> Try using 'device' property of the v4l2src element. >>> >>> For more info see: >>> gst-inspect-1.0 v4l2src >>> >>> Kris >>> >>> On 11/12/12 11:23, Ian Davidson wrote: >>>> I suspect that GStreamer is not defaulting to the Composite1 source, >>>> but >>>> some other - so how do I convince it to use the Composite1? >>> _______________________________________________ >>> gstreamer-devel mailing list >>> [hidden email] >>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel >>> >> >> -- >> -- >> Ian Davidson >> /239 Streetsbrook Road, Solihull, West Midlands, B91 1HE/ >> -- >> Facts used in this message may or may not reflect an underlying >> objective reality. Facts are supplied for personal use only. >> Recipients quoting supplied information do so at their own risk. Facts >> supplied may vary in whole or part from widely accepted standards. >> While painstakingly researched, facts may or may not be indicative of >> actually occurring events or natural phenomena. >> The author accepts no responsibility for personal loss or injury >> resulting from memorisation and subsequent use. >> >> >> _______________________________________________ >> gstreamer-devel mailing list >> [hidden email] >> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel > ... [show rest of quote] _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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The device is set to /dev/video0. Looking in /dev, I can see
/dev/video0 - but I cannot see anything else relevant.
xawtv uses /dev/video0 and then sets the input from "input = Television | Composite1 | S-Video | ..." - but I cannot see how to do that with v4l2src. I think that it is defaulting to "Television". Ian On 11/12/2012 13:10, Krzysztof Konopko
wrote:
Have a look at the 'device' property. Your input should be represented as a device in the file system. You need to find out which one it is and set it through the 'device' property of the v4l2src element. Kris On 11/12/12 12:55, Ian Davidson wrote:Actually, not 100% success. I reboot the computer and repeated the test and I think that this time, it picked up the 'Television' input again, not the Composite1. I have listed the output from gst-inspect-1.0 below. I do not see anything which relates to the input selection. [ian@localhost ~]$ gst-inspect-1.0 v4l2src Factory Details: Rank: primary (256) Long-name: Video (video4linux2) Source Klass: Source/Video Description: Reads frames from a Video4Linux2 device Author: Edgard Lima [hidden email], Stefan Kost [hidden email] Plugin Details: Name: video4linux2 Description: elements for Video 4 Linux Filename: /usr/lib64/gstreamer-1.0/libgstvideo4linux2.so Version: 1.0.3 License: LGPL Source module: gst-plugins-good Source release date: 2012-11-21 Binary package: Fedora GStreamer-plugins-good package Origin URL: http://download.fedoraproject.org GObject +----GInitiallyUnowned +----GstObject +----GstElement +----GstBaseSrc +----GstPushSrc +----GstV4l2Src Implemented Interfaces: GstURIHandler GstTuner GstColorBalance GstVideoOrientation Pad Templates: SRC template: 'src' Availability: Always Capabilities: video/x-raw format: RGB15 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: RGB16 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: BGR width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: RGB width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: BGRx width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: RGBx width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: GRAY8 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: YVU9 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: YV12 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: YUY2 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: UYVY width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: Y42B width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: Y41B width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: NV12 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: NV21 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: YUV9 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: I420 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-bayer width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] image/jpeg width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] image/jpeg width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] image/jpeg width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-dv systemstream: true width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/mpegts video/x-h264 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-sonix width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-pwc1 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-pwc2 width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] video/x-raw format: YVYU width: [ 1, 32768 ] height: [ 1, 32768 ] framerate: [ 0/1, 100/1 ] Element Flags: no flags set Element Implementation: Has change_state() function: 0x7f1ee15510c0 Element has no clocking capabilities. Element has no indexing capabilities. URI handling capabilities: Element can act as source. Supported URI protocols: v4l2 Pads: SRC: 'src' Implementation: Has getrangefunc(): gst_base_src_getrange Has custom eventfunc(): gst_base_src_event Has custom queryfunc(): gst_base_src_query Has custom iterintlinkfunc(): gst_pad_iterate_internal_links_default Pad Template: 'src' Element Properties: name : The name of the object flags: readable, writable String. Default: "v4l2src0" parent : The parent of the object flags: readable, writable Object of type "GstObject" blocksize : Size in bytes to read per buffer (-1 = default) flags: readable, writable Unsigned Integer. Range: 0 - 4294967295 Default: 4096 num-buffers : Number of buffers to output before sending EOS (-1 = unlimited) flags: readable, writable Integer. Range: -1 - 2147483647 Default: -1 typefind : Run typefind before negotiating flags: readable, writable Boolean. Default: false do-timestamp : Apply current stream time to buffers flags: readable, writable Boolean. Default: false device : Device location flags: readable, writable String. Default: "/dev/video0" device-name : Name of the device flags: readable String. Default: "BT878 video (Pinnacle PCTV Stud" device-fd : File descriptor of the device flags: readable Integer. Range: -1 - 2147483647 Default: -1 flags : Device type flags flags: readable Flags "GstV4l2DeviceTypeFlags" Default: 0x00000000, "(none)" (0x00000001): capture - Device supports video capture (0x00000002): output - Device supports video playback (0x00000004): overlay - Device supports video overlay (0x00000010): vbi-capture - Device supports the VBI capture (0x00000020): vbi-output - Device supports the VBI output (0x00010000): tuner - Device has a tuner or modulator (0x00020000): audio - Device has audio inputs or outputs brightness : Picture brightness, or more precisely, the black level flags: readable, writable, controllable Integer. Range: -2147483648 - 2147483647 Default: 0 contrast : Picture contrast or luma gain flags: readable, writable, controllable Integer. Range: -2147483648 - 2147483647 Default: 0 saturation : Picture color saturation or chroma gain flags: readable, writable, controllable Integer. Range: -2147483648 - 2147483647 Default: 0 hue : Hue or color balance flags: readable, writable, controllable Integer. Range: -2147483648 - 2147483647 Default: 0 norm : video standard flags: readable, writable Enum "V4L2_TV_norms" Default: 0, "none" (0): none - none (45056): NTSC - NTSC (4096): NTSC-M - NTSC-M (8192): NTSC-M-JP - NTSC-M-JP (32768): NTSC-M-KR - NTSC-M-KR (16384): NTSC-443 - NTSC-443 (255): PAL - PAL (7): PAL-BG - PAL-BG (1): PAL-B - PAL-B (2): PAL-B1 - PAL-B1 (4): PAL-G - PAL-G (8): PAL-H - PAL-H (16): PAL-I - PAL-I (224): PAL-DK - PAL-DK (32): PAL-D - PAL-D (64): PAL-D1 - PAL-D1 (128): PAL-K - PAL-K (256): PAL-M - PAL-M (512): PAL-N - PAL-N (1024): PAL-Nc - PAL-Nc (2048): PAL-60 - PAL-60 (16711680): SECAM - SECAM (65536): SECAM-B - SECAM-B (262144): SECAM-G - SECAM-G (524288): SECAM-H - SECAM-H (3276800): SECAM-DK - SECAM-DK (131072): SECAM-D - SECAM-D (1048576): SECAM-K - SECAM-K (2097152): SECAM-K1 - SECAM-K1 (4194304): SECAM-L - SECAM-L (8388608): SECAM-Lc - SECAM-Lc io-mode : I/O mode flags: readable, writable Enum "GstV4l2IOMode" Default: 0, "auto" (0): auto - GST_V4L2_IO_AUTO (1): rw - GST_V4L2_IO_RW (2): mmap - GST_V4L2_IO_MMAP (3): userptr - GST_V4L2_IO_USERPTR Element Signals: "prepare-format" : void user_function (GstElement* object, gint arg0, guint arg1, guint arg2, guint arg3, gpointer user_data); [ian@localhost ~]$ On 11/12/2012 12:15, Ian Davidson wrote:Thanks, I changed the command to gst-launch-1.0 v4l2src norm=PAL ! 'video/x-raw,format=(string)I420,width=320,height=240,framerate=(fraction)25/1' ! queue ! mux. alsasrc num-buffers=440 ! audioconvert ! 'audio/x-raw,rate=44100,channels=2' ! queue ! mux. avimux name=mux ! filesink location=test.avi and that then captured the video. On 11/12/2012 11:32, Krzysztof Konopko wrote:Try using 'device' property of the v4l2src element. For more info see: gst-inspect-1.0 v4l2src Kris On 11/12/12 11:23, Ian Davidson wrote:I suspect that GStreamer is not defaulting to the Composite1 source, but some other - so how do I convince it to use the Composite1?_______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel-- -- Ian Davidson /239 Streetsbrook Road, Solihull, West Midlands, B91 1HE/ -- Facts used in this message may or may not reflect an underlying objective reality. Facts are supplied for personal use only. Recipients quoting supplied information do so at their own risk. Facts supplied may vary in whole or part from widely accepted standards. While painstakingly researched, facts may or may not be indicative of actually occurring events or natural phenomena. The author accepts no responsibility for personal loss or injury resulting from memorisation and subsequent use. _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel ... [show rest of quote]
--
-- Ian Davidson 239 Streetsbrook Road, Solihull, West Midlands, B91 1HE -- Facts used in this message may or may not reflect an underlying objective reality. Facts are supplied for personal use only. Recipients quoting supplied information do so at their own risk. Facts supplied may vary in whole or part from widely accepted standards. While painstakingly researched, facts may or may not be indicative of actually occurring events or natural phenomena. The author accepts no responsibility for personal loss or injury resulting from memorisation and subsequent use. _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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On 11 Dec 2012, at 13:35, Ian Davidson wrote:
> > The device is set to /dev/video0. Looking in /dev, I can see /dev/video0 - but I cannot see anything else relevant. > > xawtv uses /dev/video0 and then sets the input from "input = Television | Composite1 | S-Video | ..." - but I cannot see how to do that with v4l2src. I think that it is defaulting to "Television". Try using v4l2-ctl to configure your capture card. "v4l2-ctl --help" shows "--get-input" and "--set-input=<num>" which may be what you're looking for. On Fedora, at least, v4l2-ctl is provided by the "v4l-utils" package. _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Excellent. That did it.
I can now build that into my script. Ian On 11/12/2012 13:48, David
Röthlisberger wrote:
On 11 Dec 2012, at 13:35, Ian Davidson wrote:The device is set to /dev/video0. Looking in /dev, I can see /dev/video0 - but I cannot see anything else relevant. xawtv uses /dev/video0 and then sets the input from "input = Television | Composite1 | S-Video | ..." - but I cannot see how to do that with v4l2src. I think that it is defaulting to "Television".Try using v4l2-ctl to configure your capture card. "v4l2-ctl --help" shows "--get-input" and "--set-input=<num>" which may be what you're looking for. On Fedora, at least, v4l2-ctl is provided by the "v4l-utils" package. --
-- Ian Davidson 239 Streetsbrook Road, Solihull, West Midlands, B91 1HE -- Facts used in this message may or may not reflect an underlying objective reality. Facts are supplied for personal use only. Recipients quoting supplied information do so at their own risk. Facts supplied may vary in whole or part from widely accepted standards. While painstakingly researched, facts may or may not be indicative of actually occurring events or natural phenomena. The author accepts no responsibility for personal loss or injury resulting from memorisation and subsequent use. _______________________________________________ gstreamer-devel mailing list [hidden email] http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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