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Setting PIDs for mpegtsmux

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Peter Maersk-Moller-2

Setting PIDs for mpegtsmux

When you are muxing multiple video streams with mpegtsmux, is there then a way to set/control (on the command line using gst-launch) the PIDs of video streams that the mpegtsmux chooses for each video stream?

A quick test with the following command line reveals mpegtsmux chooses PID 65 and 66.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.

Assuming you have audio as well, is there a way to set/control which audio stream belongs to which video stream (for PAD/PMT) ?

Best regards

Peter MM

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knorr

Re: Setting PIDs for mpegtsmux

You can set the PID when requesting a sink pad from the mux. I.e.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_300 mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_301

to use PID 300 and 301 instead.

I'm afraid you cannot configure which PIDs belongs to which program/PMT using gst-launch.

You need to set the "prog-map" property of the mpegtsmux element, which takes a GstStructure, and to my knowledge you cannot specify a GstStructure using gst-launch.

An example of setting the two videostreams to specific program numbers (3 and 4):

GstElement *mux;

GstStructure *pm;

mux = gst_element_factory_make ("mpegtsmux", NULL);

pm = gst_structure_new_empty ("program_map");

gst_structure_set (pm, "sink_300", G_TYPE_INT, 3,

"sink_301", G_TYPE_INT, 4, NULL);

g_object_set (mux, "prog-map", pm, NULL);

This will associate PID 300 to program 3, and PID 301 to program 4. When you add the audio streams you simply give those a fixed PID as well, and associate them with the program containing the correct video stream.

Ad Astra.

Jesper

On Tue, May 26, 2015 at 5:25 PM, Peter Maersk-Moller <[hidden email]> wrote:

Hi

When you are muxing multiple video streams with mpegtsmux, is there then a way to set/control (on the command line using gst-launch) the PIDs of video streams that the mpegtsmux chooses for each video stream?

A quick test with the following command line reveals mpegtsmux chooses PID 65 and 66.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.

Assuming you have audio as well, is there a way to set/control which audio stream belongs to which video stream (for PAD/PMT) ?

Best regards
Peter MM

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knorr

Re: Setting PIDs for mpegtsmux

Well, my knowledge was just increased. You can actually set the prog-map preoperty using gst-launch

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_300 mpegtsmux name=muxer prog-map=program_map,sink_300=10,sink_301=11 ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_301

This will put the video on PID 300 on program number 10, and PID 301 on program 11.

On Wed, May 27, 2015 at 8:12 AM, Jesper Larsen <[hidden email]> wrote:

You can set the PID when requesting a sink pad from the mux. I.e.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_300 mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_301

to use PID 300 and 301 instead.

I'm afraid you cannot configure which PIDs belongs to which program/PMT using gst-launch.
You need to set the "prog-map" property of the mpegtsmux element, which takes a GstStructure, and to my knowledge you cannot specify a GstStructure using gst-launch.

An example of setting the two videostreams to specific program numbers (3 and 4):

GstElement *mux;
GstStructure *pm;

mux = gst_element_factory_make ("mpegtsmux", NULL);

pm = gst_structure_new_empty ("program_map");
gst_structure_set (pm, "sink_300", G_TYPE_INT, 3,
"sink_301", G_TYPE_INT, 4, NULL);
g_object_set (mux, "prog-map", pm, NULL);

This will associate PID 300 to program 3, and PID 301 to program 4. When you add the audio streams you simply give those a fixed PID as well, and associate them with the program containing the correct video stream.

Ad Astra.
Jesper

On Tue, May 26, 2015 at 5:25 PM, Peter Maersk-Moller <[hidden email]> wrote:
Hi

When you are muxing multiple video streams with mpegtsmux, is there then a way to set/control (on the command line using gst-launch) the PIDs of video streams that the mpegtsmux chooses for each video stream?

A quick test with the following command line reveals mpegtsmux chooses PID 65 and 66.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.

Assuming you have audio as well, is there a way to set/control which audio stream belongs to which video stream (for PAD/PMT) ?

Best regards
Peter MM

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http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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Peter Maersk-Moller-2

Re: Setting PIDs for mpegtsmux

Hi Jesper.

Thanks for the info. Very helpful and very useful.

Now for the other end, the consuming or decoding end. I assume I can do something similar with tsdemux.

gst-launch-v udpsrc ..... ! mtsdemux program-number=10 ! .....

Haven't tested it yet, but it'll be close I think.

What if you want to control what program number to decode in a decodebin. Is there a less known, less documented way to parse this information to decodebin? I remember there is a way to set some parameters of a bin in GStreamer, however I have never found the formal documentations for that.

best regards.

Peter Maersk-Moller

Is there a way to filter which PID gets decoded when using decodebin or tsdemux

On Wed, May 27, 2015 at 9:39 AM, Jesper Larsen <[hidden email]> wrote:

Well, my knowledge was just increased. You can actually set the prog-map preoperty using gst-launch

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_300 mpegtsmux name=muxer prog-map=program_map,sink_300=10,sink_301=11 ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_301

This will put the video on PID 300 on program number 10, and PID 301 on program 11.

On Wed, May 27, 2015 at 8:12 AM, Jesper Larsen <[hidden email]> wrote:
You can set the PID when requesting a sink pad from the mux. I.e.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_300 mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_301

to use PID 300 and 301 instead.

I'm afraid you cannot configure which PIDs belongs to which program/PMT using gst-launch.
You need to set the "prog-map" property of the mpegtsmux element, which takes a GstStructure, and to my knowledge you cannot specify a GstStructure using gst-launch.

An example of setting the two videostreams to specific program numbers (3 and 4):

GstElement *mux;
GstStructure *pm;

mux = gst_element_factory_make ("mpegtsmux", NULL);

pm = gst_structure_new_empty ("program_map");
gst_structure_set (pm, "sink_300", G_TYPE_INT, 3,
"sink_301", G_TYPE_INT, 4, NULL);
g_object_set (mux, "prog-map", pm, NULL);

This will associate PID 300 to program 3, and PID 301 to program 4. When you add the audio streams you simply give those a fixed PID as well, and associate them with the program containing the correct video stream.

Ad Astra.
Jesper

On Tue, May 26, 2015 at 5:25 PM, Peter Maersk-Moller <[hidden email]> wrote:
Hi

When you are muxing multiple video streams with mpegtsmux, is there then a way to set/control (on the command line using gst-launch) the PIDs of video streams that the mpegtsmux chooses for each video stream?

A quick test with the following command line reveals mpegtsmux chooses PID 65 and 66.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.

Assuming you have audio as well, is there a way to set/control which audio stream belongs to which video stream (for PAD/PMT) ?

Best regards
Peter MM

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[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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knorr

Re: Setting PIDs for mpegtsmux

I'm not aware of any way of setting properties on child elements through gst-launch command.

But you should be able to do the filtering using some tees, tsdemuxs, and decode bins.

The tsdemux element creates src pads with names that includes the PID of the stream served on that pad.

Imagine you have a program (10) with 1 video stream on PID 300, and two audio streams on PID 301, and 302.

You should be able to play the video with one of the audio streams using something like:

gst-launch-1.0 udpsrc ..... ! tsdemux program-number=10 name=d ! queue ! decodebin ! autovideosink d.audio_012d ! queue ! decodebin ! autoaudiosink

That should choose the program number 10, play the video, and play the audio on PID 301 (if it is part of the program). Note that the muxer uses dec numbers for the PID while the demuxer uses hex.

If you need to decode several programs at the same time, you can put a tee element in just before the tsdemux, and do a second branch with tsdemux

udpsrc ... ! tee name=t ! tsdemux program-number=10 name=d1 t. ! tsdemux program-number=11 name=d2 ....

You can see the templates for the pad names running

gst-inspect-1.0 tsdemux

Jesper

On Wed, May 27, 2015 at 11:12 AM, Peter Maersk-Moller <[hidden email]> wrote:

Hi Jesper.

Thanks for the info. Very helpful and very useful.

Now for the other end, the consuming or decoding end. I assume I can do something similar with tsdemux.

gst-launch-v udpsrc ..... ! mtsdemux program-number=10 ! .....

Haven't tested it yet, but it'll be close I think.

What if you want to control what program number to decode in a decodebin. Is there a less known, less documented way to parse this information to decodebin? I remember there is a way to set some parameters of a bin in GStreamer, however I have never found the formal documentations for that.

best regards.

Peter Maersk-Moller

Is there a way to filter which PID gets decoded when using decodebin or tsdemux

On Wed, May 27, 2015 at 9:39 AM, Jesper Larsen <[hidden email]> wrote:
Well, my knowledge was just increased. You can actually set the prog-map preoperty using gst-launch

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_300 mpegtsmux name=muxer prog-map=program_map,sink_300=10,sink_301=11 ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_301

This will put the video on PID 300 on program number 10, and PID 301 on program 11.

On Wed, May 27, 2015 at 8:12 AM, Jesper Larsen <[hidden email]> wrote:
You can set the PID when requesting a sink pad from the mux. I.e.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_300 mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_301

to use PID 300 and 301 instead.

I'm afraid you cannot configure which PIDs belongs to which program/PMT using gst-launch.
You need to set the "prog-map" property of the mpegtsmux element, which takes a GstStructure, and to my knowledge you cannot specify a GstStructure using gst-launch.

An example of setting the two videostreams to specific program numbers (3 and 4):

GstElement *mux;
GstStructure *pm;

mux = gst_element_factory_make ("mpegtsmux", NULL);

pm = gst_structure_new_empty ("program_map");
gst_structure_set (pm, "sink_300", G_TYPE_INT, 3,
"sink_301", G_TYPE_INT, 4, NULL);
g_object_set (mux, "prog-map", pm, NULL);

This will associate PID 300 to program 3, and PID 301 to program 4. When you add the audio streams you simply give those a fixed PID as well, and associate them with the program containing the correct video stream.

Ad Astra.
Jesper

On Tue, May 26, 2015 at 5:25 PM, Peter Maersk-Moller <[hidden email]> wrote:
Hi

When you are muxing multiple video streams with mpegtsmux, is there then a way to set/control (on the command line using gst-launch) the PIDs of video streams that the mpegtsmux chooses for each video stream?

A quick test with the following command line reveals mpegtsmux chooses PID 65 and 66.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.

Assuming you have audio as well, is there a way to set/control which audio stream belongs to which video stream (for PAD/PMT) ?

Best regards
Peter MM

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[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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Peter Maersk-Moller-2

Re: Setting PIDs for mpegtsmux

Hi Jesper.

Thanks a million. Exactly the kind of granularity of control needed to mux a couple of video streams into one ts stream and needed to demux them again.

Best regards

Peter MM

On Wed, May 27, 2015 at 2:20 PM, Jesper Larsen <[hidden email]> wrote:

I'm not aware of any way of setting properties on child elements through gst-launch command.

But you should be able to do the filtering using some tees, tsdemuxs, and decode bins.
The tsdemux element creates src pads with names that includes the PID of the stream served on that pad.

Imagine you have a program (10) with 1 video stream on PID 300, and two audio streams on PID 301, and 302.

You should be able to play the video with one of the audio streams using something like:

gst-launch-1.0 udpsrc ..... ! tsdemux program-number=10 name=d ! queue ! decodebin ! autovideosink d.audio_012d ! queue ! decodebin ! autoaudiosink

That should choose the program number 10, play the video, and play the audio on PID 301 (if it is part of the program). Note that the muxer uses dec numbers for the PID while the demuxer uses hex.
If you need to decode several programs at the same time, you can put a tee element in just before the tsdemux, and do a second branch with tsdemux

udpsrc ... ! tee name=t ! tsdemux program-number=10 name=d1 t. ! tsdemux program-number=11 name=d2 ....

You can see the templates for the pad names running
gst-inspect-1.0 tsdemux

Jesper

On Wed, May 27, 2015 at 11:12 AM, Peter Maersk-Moller <[hidden email]> wrote:
Hi Jesper.

Thanks for the info. Very helpful and very useful.

Now for the other end, the consuming or decoding end. I assume I can do something similar with tsdemux.

gst-launch-v udpsrc ..... ! mtsdemux program-number=10 ! .....

Haven't tested it yet, but it'll be close I think.

What if you want to control what program number to decode in a decodebin. Is there a less known, less documented way to parse this information to decodebin? I remember there is a way to set some parameters of a bin in GStreamer, however I have never found the formal documentations for that.

best regards.

Peter Maersk-Moller

Is there a way to filter which PID gets decoded when using decodebin or tsdemux

On Wed, May 27, 2015 at 9:39 AM, Jesper Larsen <[hidden email]> wrote:
Well, my knowledge was just increased. You can actually set the prog-map preoperty using gst-launch

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_300 mpegtsmux name=muxer prog-map=program_map,sink_300=10,sink_301=11 ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_301

This will put the video on PID 300 on program number 10, and PID 301 on program 11.

On Wed, May 27, 2015 at 8:12 AM, Jesper Larsen <[hidden email]> wrote:
You can set the PID when requesting a sink pad from the mux. I.e.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_300 mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.sink_301

to use PID 300 and 301 instead.

I'm afraid you cannot configure which PIDs belongs to which program/PMT using gst-launch.
You need to set the "prog-map" property of the mpegtsmux element, which takes a GstStructure, and to my knowledge you cannot specify a GstStructure using gst-launch.

An example of setting the two videostreams to specific program numbers (3 and 4):

GstElement *mux;
GstStructure *pm;

mux = gst_element_factory_make ("mpegtsmux", NULL);

pm = gst_structure_new_empty ("program_map");
gst_structure_set (pm, "sink_300", G_TYPE_INT, 3,
"sink_301", G_TYPE_INT, 4, NULL);
g_object_set (mux, "prog-map", pm, NULL);

This will associate PID 300 to program 3, and PID 301 to program 4. When you add the audio streams you simply give those a fixed PID as well, and associate them with the program containing the correct video stream.

Ad Astra.
Jesper

On Tue, May 26, 2015 at 5:25 PM, Peter Maersk-Moller <[hidden email]> wrote:
Hi

When you are muxing multiple video streams with mpegtsmux, is there then a way to set/control (on the command line using gst-launch) the PIDs of video streams that the mpegtsmux chooses for each video stream?

A quick test with the following command line reveals mpegtsmux chooses PID 65 and 66.

gst-launch-1.0 -v videotestsrc name=vsrc1 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! mpegtsmux name=muxer ! queue ! tcpserversink host=0.0.0.0 sync-method=2 recover-policy=keyframe port=5000 videotestsrc name=vsrc2 is-live=true do-timestamp=true ! x264enc ! queue ! h264parse ! muxer.

Assuming you have audio as well, is there a way to set/control which audio stream belongs to which video stream (for PAD/PMT) ?

Best regards
Peter MM

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gagankumarnigam

Re: Setting PIDs for mpegtsmux

Hi Peter,

Can u tell me how to get pid no of mpegts video
wheather it is recorded or streamed file from v4l2src

--
Sent from: http://gstreamer-devel.966125.n4.nabble.com/
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