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gstreamer custom element

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Duchassin Frederic

gstreamer custom element

Hello,

I try to make my own element called “t2mi” : this element take a t2-mi stream as input as output an mpeg2-ts stream.

So using these pipeline :

(this first pipeline create a file called out.ts which contain valid mpeg2-ts)

gst-launch-1.0 -v udpsrc address=239.0.0.1 port=1234 buffer-size=300000000 do-timestamp=false ! queue ! t2mi pid=64 ! queue ! filesink location=/home/t2misample/out.ts

(this second pipeline read the out.ts file and display the decoded video)

gst-launch-1.0 -v filesrc location=/home/t2misample/out.ts blocksize=564 ! tsdemux name=d ! multiqueue name=q use-buffering=1 d. ! q. q. ! queue max-size-bytes=100000000 max-size-time=0 ! vpudec ! queue max-size-bytes=100000000 max-size-time=0 ! imxipuvideosink q. ! queue max-size-bytes=100000000 max-size-time=0 ! decodebin ! queue max-size-bytes=100000000 max-size-time=0 ! audioconvert ! volume volume=10 ! alsasink

So my element seems working but when I use the following pipeline, it doesn’t work anymore :

gst-launch-1.0 -v udpsrc address=239.0.0.1 port=1234 buffer-size=300000000 do-timestamp=false ! queue ! t2mi pid=64 ! queue ! tsdemux name=d ! multiqueue name=q use-buffering=1 d. ! q. q. ! queue max-size-bytes=100000000 max-size-time=0 ! vpudec ! queue max-size-bytes=100000000 max-size-time=0 ! imxipuvideosink q. ! queue max-size-bytes=100000000 max-size-time=0 ! decodebin ! queue max-size-bytes=100000000 max-size-time=0 ! audioconvert ! volume volume=10 ! alsasink

So when I use a filesink + filesrc and 2 pipeline, it’s working. But when I use only one pipeline it doesn’t work.

So my question is why ?

Thanks in advance for your help.

Frederic

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Duchassin Frederic

RE: gstreamer custom element

Hello,

I try to add pts and dts to the output buffer… but nothing more.

It always doesn’t work on live stream whereas it work when I use an intermediate file.

Help me please, it’s going to make me crazy !!!!

Frederic

De : gstreamer-devel [mailto:[hidden email]] De la part de Duchassin Frédéric
Envoyé : lundi 14 mai 2018 14:25
À : 'Discussion of the development of and with GStreamer'
Objet : gstreamer custom element

Hello,

I try to make my own element called “t2mi” : this element take a t2-mi stream as input as output an mpeg2-ts stream.

So using these pipeline :

(this first pipeline create a file called out.ts which contain valid mpeg2-ts)

gst-launch-1.0 -v udpsrc address=239.0.0.1 port=1234 buffer-size=300000000 do-timestamp=false ! queue ! t2mi pid=64 ! queue ! filesink location=/home/t2misample/out.ts

(this second pipeline read the out.ts file and display the decoded video)

So my element seems working but when I use the following pipeline, it doesn’t work anymore :

So when I use a filesink + filesrc and 2 pipeline, it’s working. But when I use only one pipeline it doesn’t work.

So my question is why ?

Thanks in advance for your help.

Frederic

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gstreamer-devel mailing list
[hidden email]
https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

Duchassin Frederic

RE: gstreamer custom element

If somebody can have a look at debug file in order to give me a clue.

2 zip archive containing dot files :

- The first is a pipeline from a file and is working.

- The second is a live stream from udp and is not working.

Frederic

De : gstreamer-devel [mailto:[hidden email]] De la part de Duchassin Frederic
Envoyé : mardi 15 mai 2018 10:47
À : 'Discussion of the development of and with GStreamer'
Objet : RE: gstreamer custom element

Hello,

I try to add pts and dts to the output buffer… but nothing more.

It always doesn’t work on live stream whereas it work when I use an intermediate file.

Help me please, it’s going to make me crazy !!!!

Frederic

Hello,

I try to make my own element called “t2mi” : this element take a t2-mi stream as input as output an mpeg2-ts stream.

So using these pipeline :

(this first pipeline create a file called out.ts which contain valid mpeg2-ts)

gst-launch-1.0 -v udpsrc address=239.0.0.1 port=1234 buffer-size=300000000 do-timestamp=false ! queue ! t2mi pid=64 ! queue ! filesink location=/home/t2misample/out.ts

(this second pipeline read the out.ts file and display the decoded video)

So my element seems working but when I use the following pipeline, it doesn’t work anymore :

So when I use a filesink + filesrc and 2 pipeline, it’s working. But when I use only one pipeline it doesn’t work.

So my question is why ?

Thanks in advance for your help.

Frederic

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[hidden email]
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t2mi file_WORKING.zip (16K) Download Attachment

t2mi udp_NOT WORKING.zip (12K) Download Attachment

Duchassin Frederic

RE: gstreamer custom element

In reply to this post by Duchassin Frederic

Hello,

Nobody can help me or have experience about plugin creation ?

I use this mailing list since several month now and I nearly never have an answer L

I hope someone could take time and read my post to help a newbie.

Frederic

Hello,

I try to add pts and dts to the output buffer… but nothing more.

It always doesn’t work on live stream whereas it work when I use an intermediate file.

Help me please, it’s going to make me crazy !!!!

Frederic

Hello,

I try to make my own element called “t2mi” : this element take a t2-mi stream as input as output an mpeg2-ts stream.

So using these pipeline :

(this first pipeline create a file called out.ts which contain valid mpeg2-ts)

gst-launch-1.0 -v udpsrc address=239.0.0.1 port=1234 buffer-size=300000000 do-timestamp=false ! queue ! t2mi pid=64 ! queue ! filesink location=/home/t2misample/out.ts

(this second pipeline read the out.ts file and display the decoded video)

So my element seems working but when I use the following pipeline, it doesn’t work anymore :

So when I use a filesink + filesrc and 2 pipeline, it’s working. But when I use only one pipeline it doesn’t work.

So my question is why ?

Thanks in advance for your help.

Frederic

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gstreamer-devel mailing list
[hidden email]
https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel