Mpeg4 and Mpeg2 pipeline in DM8168 (G-streamer)

Hello,

gst-launch --gst-debug=3 --verbose filesrc location=xxxx !  qtdemux name=demux demux.audio_00 ! queue ! faad ! alsasink device="plughw:0,1" demux.video_00 ! queue ! mpegvideoparse ! omx_mpeg2dec ! omx_scaler ! omx_ctrl display-mode=OMX_DC_MODE_1080P_60 ! gstperf ! omx_videosink

But you should enable TI81XX HDMI Audio Support.

Follow this user guide:

ezsdk/board-support/docs

TI81XX_HDMI_User_Guide.pdf

You should change the demuxer in the exmaple pipeline which I post.

Let me know the result.

Best Regards,

Margarita

Hi,

Can you please provide the G-streamer pipeline to run the H.263 video codecs?...

Thanks in advance,

Regards,
Salih

Hello,

As you can see in gstomx.c this line is commented :

// { "omx_h263dec", "libOMX_Core.so", "OMX.TI.DUCATI.VIDDEC", "", GST_RANK_PRIMARY, gst_omx_h263dec_get_type },

If you remove the comment you will see the omx_h263dec with gst-inspect. But there is another problem, in gstreamer plugin there is no h263parser (check with gst-inspect). I posted a pipeline where ffdec_263 is used. The main difference is that the ffdec_h263 element itself has a parser which parses proper data (one frame data) and feeds it to decoder(that is why in the pipeline there is no parser). But if I remember right if you try to decode( with omx_h263dec) a h263 stream with resolution 176x144 or less it was fine but for greater it will fail, since you do not have a parser.
With OMX decode_display demo we could decode a h263 elementary stream but as you could see there is a simple h263parser in es_parser.c file.

Best Regards,
Margarita

Thank you very much Margarita for your prompt reply. Is there any pipeline available to stream a DivX format video and also how to display JPEG image using G-streamer pipeline.

Thanks in advance.

Regards,
Salih

Hello,

In EZSDK we  have a MJPEG decoder so in this case you could use  jpegdec,  pngdec, omx_mjpegdec:

Here is the pipeline example:

gst-launch --gst-debug=3 filesrc location=1.png ! pngdec ! queue ! ffmpegcolorspace  ! imagefreeze ! omx_ctrl display-mode=OMX_DC_MODE_1080P_60 ! gstperf ! omx_videosink

gst-launch -v filesrc location=1.jpg  ! jpegdec ! queue ! ffmpegcolorspace  ! imagefreeze ! omx_ctrl display-mode=OMX_DC_MODE_1080P_60 ! gstperf ! omx_videosink

gst-launch -v filesrc location=1280x720.jpg  ! typefind ! jpegparse ! omx_mjpegdec ! omx_scaler !  imagefreeze  !  omx_ctrl display-mode=OMX_DC_MODE_1080P_60 ! gstperf ! omx_videosink

Imagefreeze element will generates a still frame stream from an image.

Muhammad Salih said:

Is there any pipeline available to stream a DivX format

Provide more information about the video container etc. How you want to stream it : udp, tcp ?

Best Regards,

Margarita

Hi,

Once again Thank you very much for your support. The video stream is MPEG-4 visual and audio stream is mp3.

I want to play video in the LCD.

Thanks in advance.

Regards,
Salih

Hello,

Muhammad Salih said:

I want to play video in the LCD.

If you want to play it on LCD you shall have:

....! omx_scaler ! omx_ctrl display-mode=OMX_DC_MODE_1080P_60 display-device=LCD ! gstperf !   'video/x-raw-yuv,width=(int)800,height=(int)480'   ! omx_videosink sync=false display-device=LCD

Probably you shall add omx_scaler element and to pass a capsfilter ('video/x-raw-yuv,width=(int)800,height=(int)480') where width and height are equal(or less) to the Display width and height if you wish to see it on full screen. The display-device property shall be set as LCD. By default it is set to HDMI so that is why it is not set in the previous pipelines.

Muhammad Salih said:

. The video stream is MPEG-4 visual

You could try :

 gst-launch -v filesrc location=XXX ! /add the demuxer here/ !   omx_mpeg4dec ! omx_scaler ! omx_ctrl display-mode=OMX_DC_MODE_1080P_60 ! gstperf ! omx_videosink   

You shall add a mpeg4videoparse between demuxer and omx_mpeg4dec. 

Best Regards,

Margarita