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Example GStreamer Pipelines

42,605 bytes removed, 02:08, 18 December 2010
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== Purpose ==This page provides example pipelines that can be copied to the command line to demonstrate various GStreamer operations. Some of the pipelines may need modification for things such as file names, ip addresses, etc.
It is our hope that people using this This page will add new interesting provides example pipelines that they themselves are usingcan be copied to the command line to demonstrate various GStreamer operations. For example, on DM6467 if you are decoding a 1080 video and outputing to component please include your pipeline Some of the pipelines may need modification for others to use things such as a referencefile names, ip addresses, etc.
Refer to [[GStreamer|It is our hope that people using this Gstreamer article]] for more information page will add new interesting pipelines that they themselves are using. For example, on downloading and building TI Gstreamer elements. The project is hosted at http://gstreamer.ti.com. If DM6467 if you are interested in understanding the design details then watch decoding a 1080 video presentation http://software-dl.ti.com/sdo/sdo_apps_public_sw/GStreamer_On_TI/FLV1/GStreamer_On_TIand outputing to component please include your pipeline for others to use as a reference.htm
== Testing ==Currently these pipelines have not undergone any extensive testingRefer to [[GStreamer|this Gstreamer article]] for more information on downloading and building TI Gstreamer elements. The project is hosted at http://gstreamer.ti.com. If you find an error are interested in a pipeline please correct itunderstanding the design details then watch video presentation http://software-dl.== Media files ==You should be able to use any audio and video media file that conforms to the appropriate standardti.com/sdo/sdo_apps_public_sw/GStreamer_On_TI/FLV1/GStreamer_On_TI.=== Creating an AVI file ===htm
The following <tt>ffmpeg</tt> command takes a .mov file (say from the Apple movie trailers site) and make an AVI file. == Testing Run the command on your host computer.==
<pre>ffmpeg -i tropic_thunder-tlr1a_720pCurrently these pipelines have not undergone any extensive testing.mov -r 60 -b 6000000 -vcodec mpeg2video -ab 48000000 -acodec libmp3lame -s 1280x544 tropicIf you find an error in a pipeline please correct it.avi</pre>
== Supported Platforms Media files ==Following are a list of supported platforms, with links that jump directly to pipeline examples for each platform.*[[#DM355|DM355]]*[[#DM357|DM357]]*[[#DM644x|DM644x]]*[[#DM365|DM365]]*[[#DM6467|DM6467]]*[[#DM6467T|DM6467T]]*[[#OMAP35x|OMAP35x]]*[[#All|All (commonly requested examples)]]
== DM355 ==This section covers pipelines for common You should be able to use cases for any audio and video media file that conforms to the DM355 processorappropriate standard.
=== Environment Requirements Creating an AVI file ==={{ti_gst_env|processor=dm355|fbdev=/dev/fb2}}
=== Loopback: Video ==='''v4l2src The following <tt>ffmpeg</tt> command takes a .mov file (Capturesay from the Apple movie trailers site):'''and make an AVI file. Run the command on your host computer. <pre>gstffmpeg -i tropic_thunder-tlr1a_720p.mov -r 60 -b 6000000 -vcodec mpeg2video -launch ab 48000000 -v v4l2src alwaysacodec libmp3lame -copy=FALSE ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite contiguousInputFrame=TRUE sync=falses 1280x544 tropic.avi</pre>== Supported Platforms ==
'''videotestsrc (generated video test-bars):'''Following are a list of supported platforms, with links that jump directly to pipeline examples for each platform.[[#DM6467T|<pre>gst-launch -v videotestsrc ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite accelFrameCopy=FALSE sync=false</prebr>]]
=== Loopback: Audio ===*[[#OMAP35x|OMAP35x]] No pipelines here yet. Please feel free to add your own.*[[#All|All (commonly requested examples)]]
=== Loopback: OMAP35x Audio + Video ===No pipelines here yet. Please feel free to add your own.
=== Decode Video Files ==='''NTSC:'''<pre>gst-launch -v filesrc location=sample.m4v ! TIViddec2 codecName=mpeg4dec engineName=codecServer ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false</pre> '''PAL:'''<pre>gst-launch -v filesrc location=sample.m4v ! TIViddec2 codecName=mpeg4dec engineName=codecServer ! TIDmaiVideoSink videoStd=D1_PAL videoOutput=composite sync=false</pre> === Decode Audio Files ===<span style="color: red">This platform does not have an accelerated audio decoder element. You can use the ARM based audio decoders "mad", "ffdec_mp3" or [http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-plugins/html/gst-plugins-bad-plugins-plugin-faad.html "faad"]</span> MP3 section covers pipelines: <pre>gst-launch filesrc location=sample.mp3 ! mad ! alsasinkgst-launch filesrc location=sample.mp3 ! mp3parse ! ffdec_mp3 ! alsasink</pre> AAC pipeline: <pre>gst-launch filesrc location=sample.aac ! faad ! alsasink</pre> === Decode .AVI Files ===The following pipeline assumes you have an AVI file with MPEG-4 Video and MP1L2 or MP3 Audio. Note that not all MPEG-4 video streams can be played using the DM355 MPEG-4 decoder -- make sure the MPEG-4 stream was encoded with the DM355 MPEG-4 encoder or another compatible encoder. <pre>gst-launch -v filesrc location=sample.avi ! avidemux name=demux demux.audio_00 ! queue max-size-buffers=8000 max-size-time=0 max-size-bytes=0 ! mad ! alsasink demux.video_00 ! queue ! TIViddec2 ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite</pre> === Encode Video Files === '''videotestsrc (generated video test-bars):'''<pre>gst-launch -v videotestsrc num-buffers=2000 ! TIVidenc1 codecName=mpeg4enc engineName=codecServer ! filesink location=output.m4v</pre> '''v4l2src (Capture):'''<pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 ! TIVidenc1 codecName=mpeg4enc engineName=codecServer contiguousInputFrame=TRUE ! filesink location=output.m4v</pre> === Encode Audio Files ===<span style="color: red">This platform does not have an accelerated audio encoder element. You can for common use cases for the ARM based audio encoders "lame" or [http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-plugins/html/gst-plugins-bad-plugins-plugin-faac.html "faac"]</span> No pipelines here yet. Please feel free to add your own. === Image Encode ===A simple pipeline that converts a UYVY image into JPEG format. <pre>gst-launch -v filesrc location=sample.yuv ! TIImgenc1 resolution=720x480 iColorSpace=UYVY oColorSpace=YUV420P qValue=75 ! filesink location=output.jpg</pre> === Image Decode ===A simple pipeline that converts a JPEG image into UYVY format. <pre>gst-launch -v filesrc location=sample.jpg ! TIImgdec1 resolution=720x480 ! filesink location=sample.yuv</pre> === Resize ===A simple pipeline capturing from v4l2src and resizing to CIF. <pre>gst-launch v4l2src always-copy=FALSE ! TIVidResize contiguousInputFrame=TRUE ! 'video/x-raw-yuv,width=352,height=288' ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false</pre> === Network Streaming ===This section gives example where EVM acts as streaming server, which captures, encodes and transmit via udp. Host PC can be used as client to decode.  '''MPEG-4 Encode/Stream/Decode:'''<br/>A simple RTP server to encode and transmit MPEG-4 <pre>gst-launch -v v4l2src always-copy=FALSE ! TIVidenc1 codecName=mpeg4enc engineName=encode contiguousInputFrame=TRUE ! rtpmp4vpay pt=96 ! udpsink host=<HOST IP ADDRESS> port=5000</pre>When the pipeline starts to run, you'll see something that looks like this:<pre>/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)1, config=(string)000001010000012000845d4c28b421e0a21f, payload=(int)96, ssrc=(guint)3412089386, clock-base=(guint)945410414, seqnum-base=(guint)27711</pre> '''Make a note of caps="application/x-rtp, media=(string)video ...............OMAP3530 processor." string and pass this string in client below ''' A simple RTP client to decode MPEG-4 and display on HOST machine
<pre>gst-launch -v udpsrc port=5000 caps="<PASS_CAPS_FROM_SERVER>" ! rtpmp4vdepay ! ffdec_mpeg4 ! xvimagesink</pre>= Environment Requirements ===
'''For sending and receiving MPEG-4 with DM355 EVM you can use these 2 pipelines :'''{{ti_gst_env|processor=omap3530|fbdev=/dev/fb2}}
RTP server side <span style="color:blue;">''' If you are using Angstrom distribution on beagleboard then you can use "omapdmaifbsink" instead of "TIDmaiVideoSink" to display the video inside the X windowing system. ''' </span>
=== Loopback: Video ===<pre>gst-launch -v videotestsrc &nbsp;! TIDmaiVideoSink videoStd=VGA videoOutput=LCD accelFrameCopy=FALSE sync=false</pre> === Loopback: Audio TIVidenc1 codecName=mpeg4enc engineName=encode =<pre>gst-launch audiotestsrc freq=1000 num-buffers=100&nbsp;! rtpmp4vpay sendalsasink</pre> If you want to route audio in to audio out (your very own P.A. system), try: <pre>gst-launch alsasrc num-configbuffers=true 1000&nbsp;! udpsink host=alsasink<HOST IP ADDRESS/pre> port=5000If you get a ''Could not open audio device for recording.'' error, likely your ALSA configuration is incorrect. I fixed it with <pre>mv /etc/asound.conf /etc/asound.conf.orig</pre>to move the ALSA configuration file out of the way.
Don't forget to set the "send-config" property to true=== Loopback: Audio+Video ===
No pipelines here yet. Please feel free to add your own.
=== Decode Video files ===
RTP client side '''H.264/VGA: ''' <pre>gst-launch -v udpsrc portfilesrc location=sample.264&nbsp;! TIViddec2 codecName=5000 capsh264dec engineName="application/x-rtp, mediacodecServer&nbsp;! TIDmaiVideoSink videoStd=(string)video, clock-rateVGA videoOutput=(int)90000, encoding-nameLCD sync=(string)MP4Vfalse</pre> '''MPEG-ES, profile4/VGA:''' <pre>gst-levellaunch -idv filesrc location=sample.m4v&nbsp;! TIViddec2 codecName=(string)1, configmpeg4dec engineName=codecServer&nbsp;! TIDmaiVideoSink videoStd=(string)000001010000012000845d4c285020f0a21f, payloadVGA videoOutput=(int)96, ssrcLCD sync=(guint)3319524202, clockfalse</pre> '''MPEG-base=(guint)4012564513, seqnum2/VGA:''' <pre>gst-launch -basev filesrc location=(guint)25833" ! rtpmp4vdepay sample.m2v&nbsp;! TIViddec2 codecName=mpeg4dec mpeg2dec engineName=decode codecServer&nbsp;! TIDmaiVideoSink videoStd=D1_PAL VGA videoOutput=composite LCD sync=false</pre>=== Decode Audio Files ===
Note that client should be started before server'''AAC:''' <pre>gst-launch -v filesrc location=sample.aac&nbsp;! TIAuddec1 codecName=aachedec engineName=codecServer&nbsp;! alsasink sync=false</pre> === Decode .MP4 Files ===
The following pipeline assumes you have a VGA .MP4 file with H.264 Video and AAC Audio. <pre>gst-launch -v filesrc location=sample.mp4&nbsp;! qtdemux name= DM357 demux demux.audio_00&nbsp;! queue max-size-buffers=8000 max-size-time=0 max-size-bytes=0&nbsp;! TIAuddec1&nbsp;! alsasink demux.video_00&nbsp;! queue&nbsp;! TIViddec2&nbsp;! TIDmaiVideoSink videoStd=VGA videoOutput=LCD</pre> This section covers pipelines for common use cases for the DM357 processor=== Decode . AVI Files ===
The following pipeline assumes you have VGA .AVI file with MPEG-2 or MPEG-4 Video and MP1L2 or MP3 Audio. <pre>gst-launch -v filesrc location=sample.avi&nbsp;! avidemux name=demux demux.audio_00&nbsp;! queue max-size-buffers=1200 max-size-time=0 max-size-bytes= Environment Requirements 0&nbsp;! mad&nbsp;! alsasink demux.video_00&nbsp;! queue&nbsp;! TIViddec2&nbsp;! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0&nbsp;! TIDmaiVideoSink videoStd=VGA videoOutput=LCD</pre> {{ti_gst_env|processor=dm357|fbdev=/dev/fb2}}= Decode .TS Files ===
'''Notes on DM357 Performance:''' There is a known issue on DM357 where there are intermittent freezes in video The following pipeline assumes you have VGA .TS file with H.264 Video and audio playback in some casesMP1L2 or MP3 Audio. If you experience this, nicing your gst-launch command to 15 as follows may resolve the issue:<pre>nice -n 15 gst-launch filesrc location=sample.ts&nbsp;! typefind&nbsp;! mpegtsdemux name=demux demux.&nbsp;! queue max-size-buffers=1200 max-size-time=0 max-size-bytes=0&nbsp;! typefind&nbsp;! mad&nbsp;! alsasink demux.. (rest of gst&nbsp;! typefind&nbsp;! TIViddec2&nbsp;! queue max-size-buffers=2 max-size-time=0 max-size-launch command)bytes=0&nbsp;! TIDmaiVideoSink videoStd=VGA videoOutput=LCD</pre>=== Encode Video Files ===
'''H.264/QVGA:''' <pre>gst-launch -v videotestsrc num-buffers=2000&nbsp;! TIVidenc1 codecName=h264enc engineName= Loopback: Video ==codecServer&nbsp;! filesink location=sample.264</pre> '''v4l2src (Capture)MPEG-4/QVGA:'''<pre>gst-launch -v v4l2src alwaysvideotestsrc num-copybuffers=FALSE 2000&nbsp;! TIDmaiVideoSink videoStdTIVidenc1 codecName=D1_NTSC videoOutputmpeg4enc engineName=composite contiguousInputFramecodecServer&nbsp;! filesink location=TRUE sync=falsesample.m4v</pre>=== Encode Video in Container ===
'''videotestsrc Encode H.264 in quicktime container (generated video test-barsCapture):'''<pre>gst-launch -v videotestsrc num-buffers=2000&nbsp;! TIDmaiVideoSink videoStdTIVidenc1 codecName=D1_NTSC videoOutputh264enc engineName=composite accelFrameCopycodecServer byteStream=FALSE sync&nbsp;! qtmux&nbsp;! filesink location=falsesample.mp4</pre> <br>
=== Loopback: Audio Image Encode ===No pipelines here yet. Please feel free to add your own.
A simple pipeline to encode YUV420P image <pre>gst-launch filesrc location=sample.yuv&nbsp;! TIImgenc1 resolution=720x480 iColorSpace= Loopback: Audio + Video UYVY oColorSpace=YUV420P qValue=75&nbsp;! filesink location=sample.jpeg</pre> No pipelines here yet. === Image Decode Please feel free to add your own.===
=== Decode Video Files ===
'''H.264/NTSC:'''
<pre>
gst-launch -v filesrc location=sample.264 ! TIViddec codecName=h264dec engineName=hmjcp ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false
</pre>
 
'''MPEG-4/NTSC:'''
<pre>
gst-launch -v filesrc location=sample.m4v ! TIViddec codecName=mpeg4dec engineName=hmjcp ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false
</pre>
 
=== Decode Audio Files ===
<span style="color: red">This platform does not have an accelerated audio decoder element. You can use the ARM based audio decoders "mad" or [http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-plugins/html/gst-plugins-bad-plugins-plugin-faad.html "faac"]</span>
 
No pipelines here yet. Please feel free to add your own.
 
=== Decode .MP4 Files ===
No pipelines here yet. Please feel free to add your own.
 
=== Decode .AVI Files ===
The following pipeline assumes you have an AVI file with MPEG-2 or MPEG-4 Video and MP1L2 or MP3 Audio.
 
<pre>
gst-launch -v filesrc location=sample.avi ! avidemux name=demux demux.audio_00 ! queue max-size-buffers=8000 max-size-time=0 max-size-bytes=0 ! mad ! alsasink demux.video_00 ! queue ! TIViddec ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite
</pre>
 
=== Encode Video Files ===
'''H.264/v4l2src (Capture):'''
<pre>
gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 ! TIVidenc codecName=h264enc engineName=hmjcp contiguousInputFrame=TRUE ! filesink location=sample.264
</pre>
 
'''MPEG-4/v4l2src (Capture):'''
<pre>
gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 ! TIVidenc codecName=mpeg4enc engineName=hmjcp contiguousInputFrame=TRUE ! filesink location=sample.m4v
</pre>
 
'''H.264/videotestsrc (generated video test-bars):'''
<pre>
gst-launch -v videotestsrc num-buffers=2000 ! TIVidenc codecName=h264enc engineName=hmjcp ! filesink location=sample.264
</pre>
 
'''MPEG-4/videotestsrc (generated video test-bars):'''
<pre>
gst-launch -v videotestsrc num-buffers=2000 ! TIVidenc codecName=mpeg4enc engineName=hmjcp ! filesink location=sample.m4v
</pre>
 
=== Encode Video in Container ===
''' Encode H.264 in quicktime container (Capture):'''
<pre>
gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 ! TIVidenc codecName=h264enc engineName=hmjcp contiguousInputFrame=TRUE byteStream=FALSE ! qtmux ! filesink location=sample.mp4
</pre>
 
<pre>
gst-launch -v videotestsrc num-buffers=2000 ! TIVidenc codecName=h264enc engineName=hmjcp byteStream=FALSE ! qtmux ! filesink location=sample.mp4
</pre>
 
 
=== Image Encode ===
A simple pipeline that converts a YUV422P image into JPEG format.
<pre>
gst-launch filesrc location=sample.yuv ! TIImgenc resolution=720x480 iColorSpace=UYVY oColorSpace=YUV422P qValue=75 ! filesink location=sample.jpg
</pre>
 
=== Image Decode ===
A simple pipeline that converts a JPEG image into UYVY format.
<pre>gst-launch filesrc location=sample.jpg jpeg&nbsp;! TIImgdec resolution=720x480 ! filesink location=sample.yuv</pre> === Resize ===A simple pipeline capturing from v4l2src and resizing to CIF. <pre>gst-launch v4l2src always-copy=FALSE ! TIVidResize contiguousInputFrame=TRUE ! 'video/x-raw-yuv,width=352,height=288' ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite accelFrameCopy=FALSE sync=false</pre> === Network Streaming ===This section gives example where EVM acts as streaming server, which captures, encodes and transmit via udp. Host PC can be used as client to decode.  '''H.264 Encode/Stream/Decode:'''<br/>A simple RTP server to be run on EVM.<pre>gst-launch -v v4l2src always-copy=FALSE ! TIVidenc codecName=h264enc engineName=hmjcp contiguousInputFrame=TRUE ! rtph264pay pt=96 ! udpsink host=<HOST_PC_IP> port=5000</pre>When the pipeline starts to run, you'll see something that looks like this:<pre>/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, profile-level-id=(string)42801e, sprop-parameter-sets=(string)\"Z0KAHtoC0PRA\\,aM48gA\\=\\=\", payload=(int)96, ssrc=(guint)895989858, clock-base=(guint)3971488929, seqnum-base=(guint)34821</pre> '''Make a note of caps="application/x-rtp, media=(string)video ................" string and pass this string in client below ''' A simple RTP client to be run on Host PC (Linux). <pre>gst-launch -v udpsrc port=5000 caps="<CAPS_FROM_SERVER>" ! rtph264depay ! ffdec_h264 ! xvimagesink</pre> == DM644x ==This section covers pipelines for common use cases for the DM644x processor.  === Environment Requirements ==={{ti_gst_env|processor=dm6446|fbdev=/dev/fb2}} === Loopback: Video ==='''v4l2src (Capture):'''<pre>gst-launch -v v4l2src always-copy=FALSE ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite contiguousInputFrame=TRUE sync=false</pre> '''videotestsrc (generated video test-bars):'''<pre>gst-launch -v videotestsrc ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite accelFrameCopy=FALSE sync=false</pre> === Loopback: Audio ===No pipelines here yet. Please feel free to add your own. === Loopback: Audio + Video ===No pipelines here yet. Please feel free to add your own. === Decode Video Files ==='''H.264/NTSC:'''<pre>gst-launch -v filesrc location=sample.264 ! TIViddec2 codecName=h264dec engineName=decode ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false</pre> '''MPEG-2/NTSC:'''<pre>gst-launch -v filesrc location=sample.m2v ! TIViddec2 codecName=mpeg2dec engineName=decode ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false</pre> '''MPEG-4/NTSC:'''<pre>gst-launch -v filesrc location=sample.m4v ! TIViddec2 codecName=mpeg4dec engineName=decode ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false</pre> === Decode Audio Files ==='''AAC:'''<pre>gst-launch -v filesrc location=sample.aac ! TIAuddec1 codecName=aachedec engineName=decode ! alsasink sync=false</pre> === Decode .MP4 Files ===The following pipeline assumes you have an .MP4 file with H.264 Video and AAC Audio. <pre>gst-launch -v filesrc location=sample.mp4 ! qtdemux name=demux demux.audio_00 ! queue max-size-buffers=8000 max-size-time=0 max-size-bytes=0 ! TIAuddec1 ! alsasink demux.video_00 ! queue ! TIViddec2 ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite</pre> === Decode .AVI Files ===The following pipeline assumes you have an .AVI file with MPEG-2 or MPEG-4 Video and MP1L2 or MP3 Audio.<pre>gst-launch -v filesrc location=sample.avi ! avidemux name=demux demux.audio_00 ! queue max-size-buffers=1200 max-size-time=0 max-size-bytes=0 ! mad ! alsasink demux.video_00 ! queue ! TIViddec2 ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite</pre> === Decode .TS Files ===The following pipeline assumes you have an transport stream file with H.264 Video and MP1L2 or MP3 Audio.<pre>gst-launch filesrc location=sample.ts ! typefind ! mpegtsdemux name=demux demux. ! queue max-size-buffers=1200 max-size-time=0 max-size-bytes=0 ! typefind ! mad ! alsasink demux. ! typefind ! TIViddec2 ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=COMPOSITE</pre> === Encode Video Files ==='''H.264/v4l2src (Capture):'''<pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 ! TIVidenc1 codecName=h264enc engineName=encode contiguousInputFrame=TRUE ! filesink location=sample.264</pre> '''MPEG-4/v4l2src (Capture):'''<pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 ! TIVidenc1 TIImgdec1 codecName=mpeg4enc engineName=encode contiguousInputFrame=TRUE ! filesink location=sample.m4v</pre> '''H.264/videotestsrc (generated video test-bars):'''<pre>gst-launch -v videotestsrc num-buffers=2000 ! TIVidenc1 codecName=h264enc engineName=encode ! filesink location=sample.264</pre> '''MPEG-4/videotestsrc (generated video test-bars):'''<pre>gst-launch -v videotestsrc num-buffers=2000 ! TIVidenc1 codecName=mpeg4enc engineName=encode ! filesink location=sample.m4v</pre> === Encode Video in Container ===''' Encode H.264 in quicktime container (Capture):'''<pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 ! TIVidenc1 codecName=h264enc engineName=encode contiguousInputFrame=TRUE byteStream=FALSE ! qtmux ! filesink location=sample.mp4</pre> <pre>gst-launch -v videotestsrc num-buffers=2000 ! TIVidenc1 codecName=h264enc engineName=encode byteStream=FALSE ! qtmux ! filesink location=sample.mp4</pre>  === Resize ===A simple pipeline capturing from v4l2src and resizing to CIF. <pre>gst-launch v4l2src always-copy=FALSE ! TIVidResize contiguousInputFrame=TRUE ! 'video/x-raw-yuv,width=352,height=288' ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false accelFrameCopy=FALSE</pre> === Network Streaming ===This section gives example where EVM acts as streaming server, which captures, encodes and transmit via udp. Host PC can be used as client to decode.  '''H.264 Encode/Stream/Decode:'''<br/>A simple RTP server to be run on EVM. <pre>gst-launch -v v4l2src always-copy=FALSE ! TIVidenc1 codecName=h264enc engineName=encode contiguousInputFrame=TRUE ! rtph264pay pt=96 ! udpsink host=<HOST_PC_IP> port=5000</pre>When the pipeline starts to run, you'll see something that looks like this:<pre> /GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, profile-level-id=(string)42801e, sprop-parameter-sets=(string)\"Z0KAHtoC0PRA\\,aM48gA\\=\\=\", payload=(int)96, ssrc=(guint)895989858, clock-base=(guint)3971488929, seqnum-base=(guint)34821</pre> '''Make a note of caps="application/x-rtp, media=(string)video ................" string and pass this string in client below ''' A simple RTP client to be run on Host PC (Linux). <pre>gst-launch -v udpsrc port=5000 caps="<PASS_CAPS_FROM_SERVER>" ! rtph264depay ! ffdec_h264 ! xvimagesink</pre> '''MPEG-4 Encode/Stream/Decode:'''<br/>A simple RTP server to encode and transmit MPEG-4 <pre>gst-launch -v v4l2src always-copy=FALSE ! TIVidenc1 codecName=mpeg4enc engineName=encode contiguousInputFrame=TRUE ! rtpmp4vpay pt=96 ! udpsink host=128.247.105.80 port=5000</pre>When the pipeline starts to run, you'll see something that looks like this:<pre> /GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)5, config=(string)000001b005000001b509000001000000012000847a9828b421e0a31f, payload=(int)96, ssrc=(guint)302303174, clock-base=(guint)347576712, seqnum-base=(guint)48616</pre> '''Make a note of caps="application/x-rtp, media=(string)video ................" string and pass this string in client below ''' A simple RTP client to decodes MPEG-4 and display on HOST machine <pre>gst-launch -v udpsrc port=5000 caps="<PASS_CAPS_FROM_SERVER>" ! rtpmp4vdepay ! ffdec_mpeg4 ! xvimagesink</pre> '''MPEG-4 Receive/Decode/Display:'''<br/> This section gives example where EVM acts as RTP client, which receives encoded stream via udp then decodes and display output. Host PC can be used as server to transmit encoded stream.  A simple RTP server which encodes and transmits MPEG-4 on DM6446 EVM.<pre>gst-launch-0.10 videotestsrc ! 'video/x-raw-yuv,width=720,height=480' ! ffenc_mpeg4 ! rtpmp4vpay ! udpsink host=<EVM_IP_ADDR> port=5000 -v</pre> '''Make a note of caps="application/x-rtp, media=(string)video ................" string and pass this string in client below ''' A simple RTP client to receive and decode the MPEG-4 encoded stream. <pre>gst-launch -v udpsrc port=5000 caps="<CAPS_FROM_SERVER>" ! rtpmp4vdepay ! TIViddec2 ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false</pre> == DM365 ==This section covers pipelines for common use cases for the DM365 processor.  === Environment Requirements ==={{ti_gst_env|processor=dm365|fbdev=/dev/fb2}} Please see some special notes while playing 720P clip [https://gstreamer.ti.com/gf/project/gstreamer_ti/wiki/?pagename=NotesOnDM365Performance here] === Loopback: Video ==='''Generated_D1 (videotestsrc):'''<pre>gst-launch -v videotestsrc ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite accelFrameCopy=FALSE sync=false</pre> ''' Capture_D1 (v4l2src):'''<pre>gst-launch -v v4l2src always-copy=FALSE input-src=composite ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite contiguousInputFrame=TRUE sync=false</pre> '''Capture_720P (v4l2src):'''<pre>gst-launch -v v4l2src always-copy=FALSE ! TIDmaiVideoSink videoStd=720P_60 videoOutput=component contiguousInputFrame=TRUE sync=false</pre> === Loopback: Audio === '''Generated audio tone (audiotestsrc):'''<pre>gst-launch audiotestsrc num-buffers=1000 ! alsasink</pre> '''Captured audio (alsasrc):'''<pre>gst-launch -v alsasrc ! alsasink sync=false</pre> === Loopback: Audio + Video ===No pipelines here yet. Please feel free to add your own. === Decode Video Files ==='''MPEG-4 -> NTSC_D1:'''<pre>gst-launch -v filesrc location=sample_ntsc_D1.mpeg4 ! TIViddec2 engineName=codecServer codecName=mpeg4dec ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=COMPOSITE sync=FALSE</pre> '''MPEG-4 -> PAL_D1:'''<pre>gst-launch -v filesrc location=sample_pal_D1.mpeg4 ! TIViddec2 engineName=codecServer codecName=mpeg4dec ! TIDmaiVideoSink videoStd=D1_PAL videoOutput=COMPOSITE sync=FALSE</pre> '''MPEG-4 -> NTSC_720P:'''<pre>gst-launch -v filesrc location=sample_720p.mpeg4 ! TIViddec2 codecName=mpeg4dec engineName=codecServer ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 !TIDmaiVideoSink videoStd=720P_60 videoOutput=COMPONENT sync=FALSE hideOSD=TRUE</pre>  '''H.264 -> NTSC_D1:'''<pre>gst-launch -v filesrc location=sample_D1.264 ! TIViddec2 engineName=codecServer codecName=h264dec ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=COMPOSITE sync=FALSE</pre> '''H.264 -> NTSC_720P:'''<pre>gst-launch -v filesrc location=sample_720P.264 ! TIViddec2 codecName=h264dec engineName=codecServer ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=720P_60 videoOutput=component sync=false hideOSD=TRUE</pre>  '''MPEG-2 -> NTSC_D1:'''<pre>gst-launch filesrc location=sample_D1.m2v ! TIViddec2 engineName=codecServer codecName=mpeg2dec ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=COMPOSITE sync=FALSE</pre> '''MPEG-2 -> NTSC_720P:'''<pre>gst-launch filesrc location=sample_720p.m2v ! TIViddec2 engineName=codecServer codecName=mpeg2dec ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=720P_60 videoOutput=component sync=false hideOSD=TRUE</pre> === Decode Audio Files ==='''AAC:'''<br/><pre>gst-launch -v filesrc location=sample.aac ! TIAuddec1 codecName=aacdec engineName=codecServer ! alsasink sync=false</pre> === Decode Container Files ==='''AVI (MPEG-4 / MP3):'''<br/><pre>gst-launch filesrc location=sample.avi ! avidemux name=demux demux.audio_00 ! queue max-size-buffers=1200 max-size-time=0 max-size-bytes=0 ! mad ! alsasink demux.video_00 ! TIViddec2 engineName=codecServer codecName=mpeg4dec ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=COMPOSITE sync=FALSE</pre> === Encode Video Files === '''Generated_D1 (videotestsrc) -> MPEG-4:'''<br/><pre>gst-launch videotestsrc num-buffers=1000 ! video/x-raw-yuv, format=(fourcc)NV12 ! TIVidenc1 codecName=mpeg4enc engineName=codecServer ! filesink location=output_gen_D1.m4v</pre> '''YUV_D1 -> MPEG-4:'''<br/><pre>gst-launch filesrc location=sample_nv12.yuv ! video/x-raw-yuv, format=(fourcc)NV12, width=320, height=240, framerate=(fraction)30/1 ! TIVidenc1 codecName=mpeg4enc engineName=codecServer ! filesink location=output_yuv_D1.m4v</pre> '''Captured_D1 (v4l2src) -> MPEG-4:'''<br/><pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=800 input-src=composite ! video/x-raw-yuv,format=(fourcc)NV12,width=720,height=480 ! TIVidenc1 codecName=mpeg4enc engineName=codecServer ! filesink location=output_cap_D1.m4v</pre> '''Captured_720P (v4l2src) -> MPEG-4:'''<br/><pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=800 input-src=COMPONENT ! video/x-raw-yuv,format=(fourcc)NV12,width=1280,height=720 ! TIVidenc1 codecName=mpeg4enc engineName=codecServer contiguousInputFrame=TRUE ! filesink location=output_cap_720P.m4v</pre>  '''Generated_D1 (videotestsrc) -> H.264:'''<br/><pre>gst-launch videotestsrc num-buffers=1000 ! video/x-raw-yuv, format=(fourcc)NV12 ! TIVidenc1 codecName=h264enc engineName=codecServer ! filesink location=output_gen_D1.264</pre> '''YUV_D1 -> H.264:'''<br/><pre>gst-launch filesrc location=sample_nv12.yuv ! video/x-raw-yuv, format=(fourcc)NV12, width=320, height=240, framerate=(fraction)30/1 ! TIVidenc1 codecName=h264enc engineName=codecServer ! filesink location=output_yuv_D1.264</pre> '''Captured_D1 (v4l2src) -> H.264:'''<br/><pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=800 input-src=composite ! video/x-raw-yuv,format=(fourcc)NV12,width=720,height=480 ! TIVidenc1 codecName=h264enc engineName=codecServer ! filesink location=output_cap_D1.264</pre> '''Captured_720P (v4l2src) -> H.264:'''<br/><pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=800 input-src=COMPONENT ! video/x-raw-yuv,format=(fourcc)NV12,width=1280,height=720 ! TIVidenc1 codecName=h264enc engineName=codecServer contiguousInputFrame=TRUE ! filesink location=output_cap_720P.264</pre>  '''Generated_D1 (videotestsrc) -> MPEG-2:'''<br/><pre>gst-launch videotestsrc num-buffers=1000 ! video/x-raw-yuv, format=(fourcc)NV12 ! TIVidenc1 codecName=mpeg2enc engineName=codecServer ! filesink location=output_gen_D1.m2v</pre> '''YUV_D1 -> MPEG-2:'''<br/><pre>gst-launch filesrc location=sample_nv12.yuv ! video/x-raw-yuv, format=(fourcc)NV12, width=320, height=240, framerate=(fraction)30/1 ! TIVidenc1 codecName=mpeg2enc engineName=codecServer ! filesink location=output_yuv_D1.m2v</pre> '''Captured_D1 (v4l2src) -> MPEG-2:'''<br/><pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=800 input-src=composite ! video/x-raw-yuv,format=(fourcc)NV12,width=720,height=480 ! TIVidenc1 codecName=mpeg2enc engineName=codecServer ! filesink location=output_cap_D1.m2v</pre> '''Captured_720P (v4l2src) -> MPEG-2:'''<br/><pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=800 input-src=COMPONENT ! video/x-raw-yuv,format=(fourcc)NV12,width=1280,height=720 ! TIVidenc1 codecName=mpeg2enc jpegdec engineName=codecServer contiguousInputFrame=TRUE ! filesink location=output_cap_720P.m2v</pre> === Encode Audio Files ===''' Captured (alsasrc) -> AAC:'''<pre>gst-launch -v alsasrc num-buffers=1000 ! TIAudenc1 codecName=aaclcenc engineName=codecServer ! filesink location=output.aac</pre> ''' Captured (alsasrc) -> AAC + PlayBack:'''<pre>gst-launch -v alsasrc num-buffers=1000 ! audio/x-raw-int, endianness=1234, signed=true, width=16, depth=16, rate=44100, channels=2 ! tee name=t ! queue ! TIAudenc1 bitrate=64000 engineName=codecServer codecName=aaclcenc ! filesink location=output.aac t. ! queue ! alsasink sync=false</pre> ''' PCM File -> AAC + PlayBack:'''<pre>gst-launch filesrc location=sample.pcm ! audio/x-raw-int, endianness=1234, signed=true, width=16, depth=16, rate=44100, channels=2 ! tee name=t ! queue ! TIAudenc1 bitrate=64000 engineName=codecServer codecName=aaclcenc ! filesink location=output.aac t. ! queue ! alsasink sync=false</pre> === Encode Video in Container ===''' Generated_D1 (videotestsrc) -> H.264 -> Quicktime container:'''<pre>gst-launch -v videotestsrc num-buffers=2000 ! 'video/x-raw-yuv,format=(fourcc)NV12' ! TIVidenc1 codecName=h264enc engineName=codecServer byteStream=FALSE ! qtmux ! filesink location=output_gen_.mp4</pre> ''' Captured_D1 (v4l2src) -> H.264 -> Quicktime container:'''<pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 input-src=composite ! video/x-raw-yuv,format=(fourcc)NV12,width=720,height=480 ! TIVidenc1 codecName=h264enc engineName=codecServer byteStream=FALSE ! qtmux ! filesink location=output_cap_.mp4</pre> === Image Encode ===''' UYVY -> JPEG:'''<pre>gst-launch filesrc location=sample_720x480.yuv ! TIImgenc1 resolution=720x480 iColorSpace=UYVY oColorSpace=YUV420P qValue=75 engineName=codecServer ! filesink location=output.jpg</pre> === Image Decode ===''' JPEG -> UYVY:'''<pre>gst-launch filesrc location=sample_720x480.jpg ! TIImgdec1 resolution=720x480 engineName=codecServer ! filesink location=output.yuv</pre> === Resize ===''' Generated_CIF (videotestsrc) -> D1:'''<pre>gst-launch videotestsrc ! video/x-raw-yuv, width=352, height=288, framerate=(fraction)30/1 ! TIVidResize ! video/x-raw-yuv,width=640,height=480, framerate=(fraction)30/1 ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=COMPOSITE sync=false</pre> ''' Captured_D1 (v4l2src) -> CIF:'''<pre>gst-launch v4l2src always-copy=FALSE input-src=composite ! TIVidResize contiguousInputFrame=TRUE ! 'video/x-raw-yuv,width=352,height=288' ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false</pre> '''''Note: To use the resize element as shown above, the IPIPE module must be configured in single-shot modeby setting "dm365_imp.oper_mode=1" in the kernel bootargs.''''' === Network Streaming ===This section gives example where EVM acts as streaming server, which captures, encodes and transmit via udp. Host PC can be used as client to decode.  '''MPEG-4 Encode/Stream/Decode:'''<br/>A simple RTP server to encode and transmit MPEG-4 <pre>gst-launch -v v4l2src always-copy=FALSE ! TIVidenc1 codecName=mpeg4enc engineName=encode contiguousInputFrame=TRUE ! rtpmp4vpay pt=96 ! udpsink host=<HOST_PC_IP> port=5000</pre>When the pipeline starts to run, you'll see something that looks like this:<pre> /GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)1, config=(string)000001010000012000845d4c28b42240a21f, payload=(int)96, ssrc=(guint)543171998, clock-base=(guint)1153531416, seqnum-base=(guint)45441</pre> '''Make a note of caps="application/x-rtp, media=(string)video ................" string and pass this string in client below ''' A simple RTP client to decodes MPEG-4 and display on HOST machine <pre>gst-launch-0.10 -v udpsrc port=5000 caps="<CAP_FROM_SERVER>" ! rtpmp4vdepay ! ffdec_mpeg4 ! xvimagesink</pre>  '''H.264 Receive/Decode/Display:'''<br/> This section gives example where EVM acts as RTP client, which receives encoded stream via udp then decodes and display output. Host PC can be used as server to transmit encoded stream.  A simple RTP client to recieve and decode the H.264 encoded stream. <pre>gst-launch -v udpsrc port=5000 ! 'application/x-rtp, media=video, payload=96, clock-rate=90000, encoding-name=H264' ! rtph264depay ! TIViddec2 ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false</pre> A simple RTP server which encodes and transmits H.264 to the DM365 EVM ('''Note''': this is a command for a host Linux PC).<pre>gst-launch-0.10 -vvv videotestsrc ! x264enc byte-stream=true bitrate=300 ! rtph264pay ! udpsink port=5000 host=<EVM_IP_ADDR> sync=false</pre> '''Note: first run the client then server''' == DM6467 ==This section covers pipelines for common use cases for the DM6467 processor.  === Environment Requirements ==={{ti_gst_env|processor=dm6467|nofbdev=}} === Loopback: Video ==='''v4l2src (Capture):'''<pre>gst-launch -v v4l2src always-copy=FALSE ! TIDmaiVideoSink videoStd=720P_60 videoOutput=component contiguousInputFrame=TRUE sync=false</pre> '''videotestsrc (generated video test-bars):'''<br/><span style="color: red">TIDmaiVideoSink does not support videotestsrc for DM6467.</span> === Loopback: Audio ==='''alsasrc (Capture):'''<pre>gst-launch alsasrc ! alsasink</pre> '''audiotestsrc (generated audio tone):'''<pre>gst-launch audiotestsrc num-buffers=1000 ! alsasink</pre> === Loopback: Audio + Video ===No pipelines here yet. Please feel free to add your own. === Decode Video Files ==='''H.264/1080i30:'''<pre>gst-launch filesrc use-mmap=true blocksize=40960 location=sample.264 ! queue max-size-buffers=0 max-size-time=0 max-size-bytes=2097152 ! TIViddec2 genTimeStamps=FALSE engineName=decode codecName=h264dec ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=1080I_30</pre> '''MPEG-2/1080i30:'''<pre>gst-launch filesrc use-mmap=true blocksize=40960 location=sample.m2v ! queue max-size-buffers=0 max-size-time=0 max-size-bytes=2097152 ! TIViddec2 genTimeStamps=FALSE engineName=decode codecName=mpeg2dec ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=1080I_30</pre> === Decode Audio Files ==='''AAC:'''<pre>gst-launch -v filesrc location=sample.aac ! TIAuddec1 codecName=aachedec engineName=decode ! alsasink sync=false</pre> === Decode .MP4 Files ===The following pipeline assumes you have an .MP4 file with H.264 Video and AAC Audio.<pre>gst-launch -v filesrc location=sample.mp4 ! qtdemux name=demux demux.audio_00 ! queue max-size-buffers=8000 max-size-time=0 max-size-bytes=0 ! TIAuddec1 ! alsasink demux.video_00 ! queue ! TIViddec2 ! TIDmaiVideoSink videoStd=1080P_30</pre> === Decode .AVI Files ===The following pipeline assumes you have an .AVI file with MPEG-2 Video and MP1L2 or MP3 Audio.<pre>gst-launch -v filesrc location=sample.avi ! avidemux name=demux demux.audio_00 ! queue max-size-buffers=8000 max-size-time=0 max-size-bytes=0 ! mad ! alsasink demux.video_00 ! queue ! TIViddec2 ! TIDmaiVideoSink videoStd=1080P_30</pre> === Decode .TS Files ===The following pipeline assumes you have an transport stream file with H.264 Video and MP1L2 or MP3 Audio.<pre>gst-launch -v filesrc location=sample.ts ! typefind ! mpegtsdemux name=demux demux. ! audio/mpeg ! queue max-size-buffers=1200 max-size-time=0 max-size-bytes=0 ! typefind ! mad ! alsasink demux. ! video/x-h264 ! typefind ! TIViddec2 ! TIDmaiVideoSink videoStd=1080P_30</pre> === Encode Video Files ==='''H.264/v4l2src (Capture):'''<pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 ! TIVidenc1 codecName=h264enc engineName=encode contiguousInputFrame=TRUE ! filesink location=sample.264</pre> '''H.264/videotestsrc (generated video test-bars):'''<pre>gst-launch -v videotestsrc num-buffers=2000 ! 'video/x-raw-yuv,format=(fourcc)NV12' ! TIVidenc1 codecName=h264enc engineName=encode ! filesink location=sample.264</pre> === Encode Video in Container ===''' Encode H.264 in quicktime container (Capture):'''<pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 ! TIVidenc1 codecName=h264enc engineName=encode contiguousInputFrame=TRUE byteStream=FALSE ! qtmux ! filesink location=sample.mp4</pre> <pre>gst-launch -v videotestsrc num-buffers=2000 ! 'video/x-raw-yuv,format=(fourcc)NV12' ! TIVidenc1 codecName=h264enc engineName=encode byteStream=FALSE ! qtmux ! filesink location=sample.mp4</pre> === Encode Audio Files ==='''AAC/alsasrc (Capture):'''<pre>gst-launch -v alsasrc ! TIAudenc1 codecName=aacheenc engineName=encode ! filesink location=sample.aac</pre> '''AAC/alsasrc (Capture+Playback):'''This pipeline encodes 2000 buffers of audio data before exiting.<pre>gst-launch -v alsasrc num-buffers=2000 ! audio/x-raw-int, endianness=1234, signed=true, width=16, depth=16, rate=44100, channels=2 ! tee name=t ! queue ! TIAudenc1 bitrate=64000 engineName=encode codecName=aacheenc ! filesink location=sample.aac t. ! queue ! alsasink sync=false</pre> '''AAC/filesrc (PCM input file):'''This pipeline encodes 2000 buffers of audio data before exiting. You will need to create a PCM file. You can do so by decoding an audio file and sending the output to the filesink. <pre>gst-launch filesrc location=sample.pcm ! audio/x-raw-int, endianness=1234, signed=true, width=16, depth=16, rate=44100, channels=2 ! tee name=t ! queue ! TIAudenc1 bitrate=64000 engineName=encode codecName=aacheenc &nbsp;! filesink location=sample.aac t. ! queue ! alsasink sync=falseuyvy</pre> === Resize ===A simple pipeline capturing from v4l2src and resizing to CIF. <pre>gst-launch v4l2src always-copy=FALSE ! TIVidResize contiguousInputFrame=TRUE ! 'video/x-raw-yuv,width=352,height=288,format=(fourcc)Y8C8' ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=composite sync=false</pre> === Network Streaming ===This section gives example where EVM acts as streaming server, which captures, encodes and transmit via udp. Host PC can be used as client to decode.  '''H.264 Encode/Stream/Decode:'''<br/>A simple RTP server to be run on EVM. <pre>gst-launch -v v4l2src always-copy=FALSE ! TIVidenc1 codecName=h264enc engineName=encode contiguousInputFrame=TRUE ! rtph264pay pt=96 ! udpsink host=<HOST_PC_IP> port=5000</pre>When the pipeline starts to run, you'll see something that looks like this:<pre> /GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, profile-level-id=(string)42801f, sprop-parameter-sets=(string)\"Z0KAH/QFoeiA\\,aN48gA\\=\\=\", payload=(int)96, ssrc=(guint)521259813, clock-base=(guint)1231006457, seqnum-base=(guint)2761</pre> '''Make a note of caps="application/x-rtp, media=(string)video ................" string and pass this string in client below ''' A simple RTP client to be run on Host PC (Linux).<pre>gst-launch-0.10 -v udpsrc port=5000 caps="<CAP_FROM_SERVER>" ! rtph264depay ! ffdec_h264 ! xvimagesink</pre> == DM6467T ==This section covers pipelines for common use cases for the DM6467T processor.  === Environment Requirements ==={{ti_gst_env|processor=dm6467|nofbdev=}} === Loopback: Video ==='''Generated (videotestsrc):'''<br/><span style="color: red">TIDmaiVideoSink does not support videotestsrc for DM6467T.</span> '''Capture_720P (v4l2src):'''<pre>gst-launch -v v4l2src always-copy=FALSE ! TIDmaiVideoSink videoStd=720P_60 videoOutput=component contiguousInputFrame=TRUE sync=false</pre> === Loopback: Audio ==='''Generated audio tone (audiotestsrc):'''<pre>gst-launch audiotestsrc num-buffers=1000 ! alsasink</pre> '''Captured audio (alsasrc):'''<pre>gst-launch -v alsasrc ! alsasink sync=FALSE</pre> === Loopback: Audio + Video ===No pipelines here yet. Please feel free to add your own. === Decode Video Files === '''H.264 -> NTSC_D1:'''<pre>gst-launch -v filesrc location=sample_D1.264 ! TIViddec2 engineName=codecServer codecName=h264dec ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=COMPONENT sync=FALSE</pre> '''H.264 -> NTSC_720P:'''<pre>gst-launch -v filesrc location=sample_720P.264 ! TIViddec2 codecName=h264dec engineName=codecServer ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=720P_60 videoOutput=component sync=false hideOSD=TRUE</pre> '''H.264 -> NTSC_1080I30:'''<pre>gst-launch -v filesrc use-mmap=true blocksize=40960 location=sample_1080i_30.264 ! queue max-size-buffers=0 max-size-time=0 max-size-bytes=2097152 ! TIViddec2 genTimeStamps=FALSE engineName=codecServer codecName=h264dec ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=1080I_30</pre> '''H.264 -> NTSC_1080P60:'''<pre>gst-launch -v filesrc use-mmap=true blocksize=40960 location=sample_1080p_60.264 ! queue max-size-buffers=0 max-size-time=0 max-size-bytes=2097152 ! video/x-h264, framerate=60/1, width=1920, height=1080 ! TIViddec2 genTimeStamps=FALSE codecName=h2641080p60vdec ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=1080P_60 sync=false</pre>  '''MPEG-2 -> NTSC_D1:'''<pre>gst-launch filesrc location=sample_D1.m2v ! TIViddec2 engineName=codecServer codecName=mpeg2dec ! TIDmaiVideoSink videoStd=D1_NTSC videoOutput=COMPONENT sync=FALSE</pre> '''MPEG-2 -> NTSC_720P:'''<pre>gst-launch filesrc location=sample_720p.m2v ! TIViddec2 engineName=codecServer codecName=mpeg2dec ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=720P_60 videoOutput=component sync=false hideOSD=TRUE</pre> '''MPEG-2 -> NTSC_1080I30:'''<pre>gst-launch filesrc use-mmap=true blocksize=40960 location=sample_1080i_30.m2v ! queue max-size-buffers=0 max-size-time=0 max-size-bytes=2097152 ! TIViddec2 genTimeStamps=FALSE engineName=codecServer codecName=mpeg2dec ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=1080I_30</pre> === Decode Audio Files ==='''AAC:'''<pre>gst-launch -v filesrc location=sample.aac ! TIAuddec1 codecName=aachedec engineName=codecServer ! alsasink sync=false</pre> === Decode Container Files === '''AVI (MPEG-2 / MP3) -> NTSC_1080I30:'''<br/><pre>gst-launch -v filesrc location=sample_1080i.avi ! avidemux name=demux demux.audio_00 ! queue max-size-buffers=8000 max-size-time=0 max-size-bytes=0 ! mad ! alsasink demux.video_00 ! queue ! TIViddec2 ! TIDmaiVideoSink videoStd=1080I_30</pre> '''MP4 (H.264 / AAC) -> NTSC_1080I30:'''<br/><pre>gst-launch -v filesrc location=sample_1080i.mp4 ! qtdemux name=demux demux.audio_00 ! queue max-size-buffers=8000 max-size-time=0 max-size-bytes=0 ! TIAuddec1 ! alsasink demux.video_00 ! queue ! TIViddec2 ! TIDmaiVideoSink videoStd=1080I_30</pre> '''TS (H.264 / MP3) -> NTSC_1080I30:'''<br/><pre>gst-launch -v filesrc location=sample_1080i.ts ! typefind ! mpegtsdemux name=demux demux. ! audio/mpeg ! queue max-size-buffers=1200 max-size-time=0 max-size-bytes=0 ! typefind ! mad ! alsasink demux. ! video/x-h264 ! typefind ! TIViddec2 TIDmaiVideoSink videoStd=1080I_30</pre> === Encode Video Files === '''Generated_D1 (videotestsrc) -> H.264:'''<br/><pre>gst-launch -v videotestsrc num-buffers=1000 ! video/x-raw-yuv,format=(fourcc)NV12 ! TIVidenc1 codecName=h264enc engineName=codecServer ! filesink location=output_gen_D1.264</pre> '''Captured_720P (v4l2src) -> H.264:'''<br/><pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=1000 ! TIVidenc1 codecName=h264enc engineName=codecServer contiguousInputFrame=TRUE ! filesink location=output_cap_720p.264</pre> === Encode Video in Container === ''' Generated_D1 (videotestsrc) -> H.264 -> Quicktime container:'''<pre>gst-launch -v videotestsrc num-buffers=2000 ! 'video/x-raw-yuv,format=(fourcc)NV12' ! TIVidenc1 codecName=h264enc engineName=codecServer byteStream=FALSE ! qtmux ! filesink location=output_gen_.mp4</pre> ''' Captured_720P (v4l2src) -> H.264 -> Quicktime container:'''<pre>gst-launch -v v4l2src always-copy=FALSE num-buffers=2000 ! TIVidenc1 codecName=h264enc engineName=codecServer ! qtmux ! filesink location=output_cap_.mp4</pre> === Encode Audio Files ===<span style="color: red">There's no AAC encoder included in DVSDK 3.10 due to licensing restrictions.</span> === Resize ===''' Captured_D1 (v4l2src) -> CIF:'''<pre>gst-launch v4l2src always-copy=FALSE ! TIVidResize contiguousInputFrame=TRUE ! video/x-raw-yuv,width=352,height=288,format=(fourcc)Y8C8 ! TIDmaiVideoSink</pre> === Network Streaming ===This section gives example where EVM acts as streaming server, which captures, encodes and transmit via udp. Host PC can be used as client to decode.  '''H.264 Encode/Stream/Decode:'''<br/>A simple RTP server to be run on EVM. <pre>gst-launch -v v4l2src always-copy=FALSE ! TIVidenc1 codecName=h264enc engineName=encode contiguousInputFrame=TRUE ! rtph264pay pt=96 ! udpsink host=<HOST_PC_IP> port=5000</pre>When the pipeline starts to run, you'll see something that looks like this:<pre> /GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, profile-level-id=(string)42801f, sprop-parameter-sets=(string)\"Z0KAH/QFoeiA\\,aN48gA\\=\\=\", payload=(int)96, ssrc=(guint)521259813, clock-base=(guint)1231006457, seqnum-base=(guint)2761</pre> '''Make a note of caps="application/x-rtp, media=(string)video ................" string and pass this string in client below ''' A simple RTP client to be run on Host PC (Linux).<pre>gst-launch-0.10 -v udpsrc port=5000 caps="<CAP_FROM_SERVER>" ! rtph264depay ! ffdec_h264 ! xvimagesink</pre> == OMAP35x ==This section covers pipelines for common use cases for the OMAP3530 processor.  === Environment Requirements ==={{ti_gst_env|processor=omap3530|fbdev=/dev/fb2}} <span style="color: blue">''' If you are using Angstrom distribution on beagleboard then you can use "omapdmaifbsink" instead of "TIDmaiVideoSink" to display the video inside the X windowing system. ''' </span> === Loopback: Video ===<pre>gst-launch -v videotestsrc ! TIDmaiVideoSink videoStd=VGA videoOutput=LCD accelFrameCopy=FALSE sync=false</pre> === Loopback: Audio === <pre>gst-launch audiotestsrc freq=1000 num-buffers=100 ! alsasink</pre> If you want to route audio in to audio out (your very own P.A. system), try: <pre>gst-launch alsasrc num-buffers=1000 ! alsasink</pre> If you get a ''Could not open audio device for recording.'' error, likely your ALSA configuration is incorrect. I fixed it with <pre>mv /etc/asound.conf /etc/asound.conf.orig</pre> to move the ALSA configuration file out of the way. === Loopback: Audio+Video ===No pipelines here yet. Please feel free to add your own. === Decode Video files ==='''H.264/VGA:'''<pre>gst-launch -v filesrc location=sample.264 ! TIViddec2 codecName=h264dec engineName=codecServer ! TIDmaiVideoSink videoStd=VGA videoOutput=LCD sync=false</pre> '''MPEG-4/VGA:'''<pre>gst-launch -v filesrc location=sample.m4v ! TIViddec2 codecName=mpeg4dec engineName=codecServer ! TIDmaiVideoSink videoStd=VGA videoOutput=LCD sync=false</pre> '''MPEG-2/VGA:'''<pre>gst-launch -v filesrc location=sample.m2v ! TIViddec2 codecName=mpeg2dec engineName=codecServer ! TIDmaiVideoSink videoStd=VGA videoOutput=LCD sync=false</pre> === Decode Audio Files ==='''AAC:'''<pre>gst-launch -v filesrc location=sample.aac ! TIAuddec1 codecName=aachedec engineName=codecServer ! alsasink sync=false</pre> ===Decode .MP4 Files ===The following pipeline assumes you have a VGA .MP4 file with H.264 Video and AAC Audio. <pre>gst-launch -v filesrc location=sample.mp4 ! qtdemux name=demux demux.audio_00 ! queue max-size-buffers=8000 max-size-time=0 max-size-bytes=0 ! TIAuddec1 ! alsasink demux.video_00 ! queue ! TIViddec2 ! TIDmaiVideoSink videoStd=VGA videoOutput=LCD</pre> === Decode .AVI Files ===The following pipeline assumes you have VGA .AVI file with MPEG-2 or MPEG-4 Video and MP1L2 or MP3 Audio. <pre>gst-launch -v filesrc location=sample.avi ! avidemux name=demux demux.audio_00 ! queue max-size-buffers=1200 max-size-time=0 max-size-bytes=0 ! mad ! alsasink demux.video_00 ! queue ! TIViddec2 ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=VGA videoOutput=LCD</pre> === Decode .TS Files ===The following pipeline assumes you have VGA .TS file with H.264 Video and MP1L2 or MP3 Audio. <pre>gst-launch filesrc location=sample.ts ! typefind ! mpegtsdemux name=demux demux. ! queue max-size-buffers=1200 max-size-time=0 max-size-bytes=0 ! typefind ! mad ! alsasink demux. ! typefind ! TIViddec2 ! queue max-size-buffers=2 max-size-time=0 max-size-bytes=0 ! TIDmaiVideoSink videoStd=VGA videoOutput=LCD</pre>
=== Encode Video Files ==='''HA simple pipeline receiving CIF from videotestsrc and resizing to VGA.264/QVGA:'''<pre>gst-launch videotestsrc&nbsp;! 'video/x-v videotestsrc numraw-buffersyuv,width=2000 352,height=288'&nbsp;! TIVidenc1 codecNameTIVidResize&nbsp;! 'video/x-raw-yuv,width=h264enc engineName640,height=codecServer 480'&nbsp;! filesink locationTIDmaiVideoSink videoStd=sample.264VGA videoOutput=LCD sync=false</pre>=== Network Streaming ===
'''MPEG-4/QVGA:'''<pre>gst-launch -v videotestsrc num-buffers=2000 ! TIVidenc1 codecName=mpeg4enc engineName=codecServer ! filesink location=sample.m4v</pre>Audio RTP Streaming ====
=== Encode Video in Container ===''' Encode HAlthough these examples are using a target device and a host PC, you could use two target devices as well.264 in quicktime container (Capture):'''<pre>gst-launch -v videotestsrc num-buffers=2000 ! TIVidenc1 codecName=h264enc engineName=codecServer byteStream=FALSE ! qtmux ! filesink location=sample.mp4</pre>
Case 1: sending audio from target (BeagleBoard in my case) to Ubuntu host:
On target: <pre>gst-launch audiotestsrc freq=1000&nbsp;! mulawenc&nbsp;! rtppcmupay&nbsp;! udpsink host=&lt;HOST_PC_IP&gt; port= Image Encode =5555</pre> On host: <pre>gst-launch udpsrc port=5555 caps="application/x-rtp"&nbsp;! queue&nbsp;! rtppcmudepay&nbsp;! mulawdec&nbsp;! audioconvert&nbsp;! alsasink</pre> A simple The above example experienced dropped audio, please update pipeline to encode YUV420P imagewhen you get it working properly.
<pre>gst-launch filesrc location=sample.yuv ! TIImgenc1 resolution=720x480 iColorSpace=UYVY oColorSpace=YUV420P qValue=75 ! filesink location=sample.jpeg</prebr>Case 2: sending audio from Ubuntu host to target (BeagleBoard)
On host: <pre>gst-launch audiotestsrc freq=1000&nbsp;! mulawenc&nbsp;! rtppcmupay&nbsp;! udpsink host=&lt;TARGET_PC_IP&gt; port= Image Decode =5555</pre> On target <pre>gst-launch udpsrc port=5555 caps="application/x-rtp"&nbsp;! queue&nbsp;! rtppcmudepay&nbsp;! mulawdec&nbsp;! audioconvert&nbsp;! alsasink</pre> A simple pipeline that converts a JPEG image into UYVY format.<br>
<pre>gst-launch filesrc location=sample.jpeg ! TIImgdec1 codecName=jpegdec engineName=codecServer ! filesink location=sample.uyvy</pre> === Resize ===A simple pipeline receiving CIF from videotestsrc and resizing to VGA. <pre>gst-launch videotestsrc ! 'video/x-raw-yuv,width=352,height=288' ! TIVidResize ! 'video/x-raw-yuv,width=640,height=480' ! TIDmaiVideoSink videoStd=VGA videoOutput=LCD sync=false</pre> === Network Streaming === ==== Audio RTP Streaming ==== Although these examples are using a target device and a host PC, you could use two target devices as well. Case 1: sending audio from target (BeagleBoard in my case) to Ubuntu host: On target:<pre>gst-launch audiotestsrc freq=1000 ! mulawenc ! rtppcmupay ! udpsink host=<HOST_PC_IP> port=5555</pre> On host:<pre>gst-launch udpsrc port=5555 caps="application/x-rtp" ! queue ! rtppcmudepay ! mulawdec ! audioconvert ! alsasink</pre> The above example experienced dropped audio, please update pipeline when you get it working properly.  Case 2: sending audio from Ubuntu host to target (BeagleBoard) On host:<pre>gst-launch audiotestsrc freq=1000 ! mulawenc ! rtppcmupay ! udpsink host=<TARGET_PC_IP> port=5555</pre> On target<pre>gst-launch udpsrc port=5555 caps="application/x-rtp" ! queue ! rtppcmudepay ! mulawdec ! audioconvert ! alsasink</pre>  ==== H.264 RTP Streaming ====
This section gives example where EVM acts as streaming server, which captures, encodes and transmit via udp. Host PC can be used as client to decode.
'''H.264 Encode/Stream/Decode '''A simple RTP server to encode and transmit H.264. <pre>gst-launch -v videotestsrc &nbsp;! TIVidenc1 codecName=h264enc engineName=codecServer &nbsp;! rtph264pay pt=96 &nbsp;! udpsink host=<&lt;HOST_PC_IP> &gt; port=5000</pre>When the pipeline starts to run, you'll see something that looks like this:<pre> /GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, profile-level-id=(string)42801e, sprop-parameter-sets=(string)\"Z0KAHukCg+QgAAB9AAAdTACA\\,aM48gA\\=\\=\", payload=(int)96, ssrc=(guint)3417130276, clock-base=(guint)2297521617, seqnum-base=(guint)48503</pre> '''Make a note of caps="application/x-rtp, media=(string)video ................" string and pass this string in client below ''' A simple RTP client to decodes H.264 and display on HOST machine
A simple RTP client to decodes H.264 and display on HOST machine <pre>gst-launch -v udpsrc port=5000 caps="<&lt;CAPS_FROM_SERVER>&gt;" &nbsp;! rtph264depay &nbsp;! ffdec_h264 &nbsp;! xvimagesink</pre>  <br> '''MPEG-4 Receive/Decode/Display:'''<br/>
This section gives example where EVM acts as RTP client, which receives encoded stream via udp then decodes and display output. Host PC can be used as server to transmit encoded stream.
A simple RTP server which encodes and transmits MPEG-4 on OMAP3530 EVM.<pre>gst-launch-0.10 videotestsrc &nbsp;! 'video/x-raw-yuv,width=640,height=480' &nbsp;! ffenc_mpeg4 &nbsp;! rtpmp4vpay &nbsp;! udpsink host=<&lt;EVM_IP_ADDR> &gt; port=5000 -v</pre> '''Make a note of caps="application/x-rtp, media=(string)video ................" string and pass this string in client below ''' A simple RTP client to receive and decode the MPEG-4 encoded stream. <pre>gst-launch -v udpsrc port=5000 caps="<CAPS_FROM_SERVER>" ! rtpmp4vdepay ! TIViddec2 ! TIDmaiVideoSink videoStd=VGA videoOutput=LCD sync=false</pre> == All ==This section covers pipelines that should work for all processors. These pipelines should work on any other platform too (such as your desktop Linux machine). They are included because we have been asked for these examples previously. === Debugging === * [http://gstreamer.freedesktop.org/data/doc/gstreamer/devel/manual/html/section-checklist-debug.html General GStreamer debugging information] ==== Verbose output ==== If you want to see what capabilities are being used or are expected, add <tt>-v</tt>. <pre>gst-launch -v alsasrc ! alsasink</pre> ==== Element debug output ==== To enable debug output for a specific element: <pre>gst-launch --gst-debug=audiotestsrc:4 audiotestsrc ! alsasink</pre> Adjust the element name and debug level until you get the data you are looking for. To enable debug output for a more than one element: <pre>gst-launch --gst-debug=audio*:3 audiotestsrc ! audioconvert ! alsasink</pre> or for all elements  <pre>gst-launch --gst-debug=*:3 alsasrc ! alsasink</pre> You can see the list of element names that support debug output using <pre>gst-launch --gst-debug-help</pre> === Audio pipelines === ==== Controlling the sample rate and bit depth ==== Find the default audio capabilities: <pre>gst-launch -v alsasrc ! alsasink</pre>
The output will be similar A simple RTP client toreceive and decode the MPEG-4 encoded stream. <pre>gst-launch -v udpsrc port=5000 caps="&lt;CAPS_FROM_SERVER&gt;"&nbsp;! rtpmp4vdepay &nbsp;! TIViddec2&nbsp;! TIDmaiVideoSink videoStd=VGA videoOutput=LCD sync=false</pre> == All ==
<pre>caps = audio/x-raw-int, endianness=This section covers pipelines that should work for all processors. These pipelines should work on any other platform too (intsuch as your desktop Linux machine)1234, signed=(boolean)true, width=(int)32, depth=(int)32, rate=(int)44100, channels=(int)2</pre>. They are included because we have been asked for these examples previously.
Using that pattern (minus the data type indication, which is not needed with gst-launch):=== Debugging ===
<pre>gst-launch -v alsasrc ! audio*[http://gstreamer.freedesktop.org/data/doc/gstreamer/devel/manual/html/xsection-rawchecklist-int, endianness=1234, signed=true, width=32, depth=32, rate=44100, channels=2 ! alsasink</pre>debug.html General GStreamer debugging information]
Adjust the capabilities as needed.==== Verbose output ====
If you want to see what capabilities are being used or are expected, add <tt>-v</tt>. <pre>gst-launch -v alsasrc&nbsp;! alsasink</pre> ==== Generic network audio streaming example Element debug output ====
These pipelines do not depend on To enable debug output for a specific element: <pre>gst-launch --gst-debug=audiotestsrc:4 audiotestsrc&nbsp;! alsasink</pre> Adjust the TI DMAI GSteamer plug-inelement name and debug level until you get the data you are looking for.
Sender (host)To enable debug output for a more than one element:<pre>gst-launch --gst-debug=audio*:3 audiotestsrc&nbsp;! audioconvert&nbsp;! alsasink</pre> or for all elements <pre>gst-launch --gst-debug=*:3 alsasrc&nbsp;! alsasink</pre> You can see the list of element names that support debug output using <pre>gst-launch --gst-debug-help</pre> === Audio pipelines ===
<pre>TARGET_IP=10.111.0.194gst-launch audiotestsrc freq=1000 ! mulawenc ! rtppcmupay ! queue ! udpsink host=$TARGET_IP port=5555</pre>Controlling the sample rate and bit depth ====
Receiver Find the default audio capabilities: <pre>gst-launch -v alsasrc&nbsp;! alsasink</pre> The output will be similar to <pre>caps = audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)32, depth=(int)32, rate=(int)44100, channels=(int)2</pre> Using that pattern (targetminus the data type indication, which is not needed with gst-launch):<pre>gst-launch -v alsasrc&nbsp;! audio/x-raw-int, endianness=1234, signed=true, width=32, depth=32, rate=44100, channels=2&nbsp;! alsasink</pre> Adjust the capabilities as needed.
<pre>gst-launch udpsrc port=5555 caps="application/x-rtp" ! queue ! rtppcmudepay ! == Generic network audio streaming example mulawdec ! alsasink</pre>====
These pipelines do not depend on the TI DMAI GSteamer plug-in.
Sender (host): <pre>TARGET_IP=10.111.0.194gst-launch audiotestsrc freq=1000&nbsp;! mulawenc&nbsp;! rtppcmupay&nbsp;! queue&nbsp;! udpsink host=$TARGET_IP port=5555</pre> Receiver (target): <pre>gst-launch udpsrc port=5555 caps="application/x-rtp"&nbsp;! queue&nbsp;! rtppcmudepay&nbsp;! mulawdec &nbsp;! alsasink</pre> [[Category:DMAI GStreamer PlugDMAI_GStreamer_Plug-In]][[Category:Gstreamer]]