MPEG-TS Section example
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MPEG-TS Section example
 
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Hi,
Has anyone got the bytes of a valid MPEG-TS Section message as might appear on the GStreamer bus? I am trying to write tests for parsing a valid Section and am hoping I can avoid doing the work of creating a valid Section message. :-) -- Russel. =========================================== Dr Russel Winder t: +44 20 7585 2200 41 Buckmaster Road m: +44 7770 465 077 London SW11 1EN, UK w: www.russel.org.uk _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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Re: MPEG-TS Section example
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Re: MPEG-TS Section example
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On Wed, 2019-05-15 at 00:47 -0500, kuttypaiyan wrote:
> Have you tried using ts-parser example code? It is in > gst-plugins-bad\tests\examples\mpegts. Hope this will give you needed > information. The code there is for debugging MPEG-TS Sections, which is very useful, but what I really need is the (seemingly non-existent) functional test data or test data generator for this code. What I need to do is to create a few valid and a few invalid section messages. I am not sure GStreamer has features in the API to create messages, just to process ones received. -- Russel. =========================================== Dr Russel Winder t: +44 20 7585 2200 41 Buckmaster Road m: +44 7770 465 077 London SW11 1EN, UK w: www.russel.org.uk _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: MPEG-TS Section example
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On Wed, 2019-05-15 at 09:31 +0100, Russel Winder wrote:
> On Wed, 2019-05-15 at 00:47 -0500, kuttypaiyan wrote: > > Have you tried using ts-parser example code? It is in > > gst-plugins-bad\tests\examples\mpegts. Hope this will give you needed > > information. > > The code there is for debugging MPEG-TS Sections, which is very useful, but > what I really need is the (seemingly non-existent) functional test data or > test data generator for this code. > > What I need to do is to create a few valid and a few invalid section messages. > I am not sure GStreamer has features in the API to create messages, just to > process ones received. structures based on what was found in the stream, and the muxer should have some code that handles them. -- Sebastian Dröge, Centricular Ltd · https://www.centricular.com _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: MPEG-TS Section example
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On Wed, 2019-05-15 at 15:02 +0300, Sebastian Dröge wrote:
[…] > > Check the code of the MPEG-TS demuxer for creation of those data > structures based on what was found in the stream, and the muxer > should > have some code that handles them. Are there any functional tests for these codes? -- Russel. =========================================== Dr Russel Winder t: +44 20 7585 2200 41 Buckmaster Road m: +44 7770 465 077 London SW11 1EN, UK w: www.russel.org.uk _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: MPEG-TS Section example
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On Thu, 2019-05-16 at 13:38 +0100, Russel Winder wrote:
> On Wed, 2019-05-15 at 15:02 +0300, Sebastian Dröge wrote: > […] > > Check the code of the MPEG-TS demuxer for creation of those data > > structures based on what was found in the stream, and the muxer > > should > > have some code that handles them. > > Are there any functional tests for these codes? If there are they would be in tests/check :) -- Sebastian Dröge, Centricular Ltd · https://www.centricular.com _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: MPEG-TS Section example
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Re: MPEG-TS Section example
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On Thu, 2019-05-16 at 09:22 -0400, Nicolas Dufresne wrote:
> Le jeu. 16 mai 2019 08 h 40, Russel Winder <[hidden email]> a écrit : > > > On Wed, 2019-05-15 at 15:02 +0300, Sebastian Dröge wrote: > > […] > > > Check the code of the MPEG-TS demuxer for creation of those data > > > structures based on what was found in the stream, and the muxer > > > should > > > have some code that handles them. > > > > Are there any functional tests for these codes? > > > > Maybe that ? > > https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/blob/master/tests/check/elements/mpegtsmux.c > TS packets. Useful test, but not entirely useful in my current situation. My problem is needing to test EIT messages. From what I can tell in gst- plugin-bad there is lots of code for dealing with EIT packets. It seems that tests/check/libs/mpegts.c tests for individual manually created PAT, PMT, NIT, SDT, and STT packets, but no EIT packets. It appears there are no tests for the EIT handling code in GStreamer, but I guess a detailed coverage report is needed to prove/disprove this claim. Whilst tests/examples/mpegts/ts-parser.c is likely great for debugging EIT messages in a GStreamer pipeline, it assumes generation of the EIT packet elsewhere, and it assumes a pipeline. I am getting close to writing a program to generate valid and invalid EIT packets with various numbers of EITEvents. I suspect D might be a better language to write this in than Rust – I am very unlikely to use C and I really don't want to go back to C++. -- Russel. =========================================== Dr Russel Winder t: +44 20 7585 2200 41 Buckmaster Road m: +44 7770 465 077 London SW11 1EN, UK w: www.russel.org.uk _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: MPEG-TS Section example
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In reply to this post by Sebastian Dröge-3
On Thu, 2019-05-16 at 16:03 +0300, Sebastian Dröge wrote:
> [..] > > If there are they would be in tests/check :) Excellent. a 'grep -r EIT .' in gst-plugins-bad led me to: tests/check/libs/mpegts.c but whilst it seems to do some tests for PAT, PMT, NIT, SDT, and STT packets, it doesn't appear to test any EIT packets. As noted in my reply to Nicolas, I suspect I need to write an EIT packet generator program. The question is whether to do this in D or Rust. -- Russel. =========================================== Dr Russel Winder t: +44 20 7585 2200 41 Buckmaster Road m: +44 7770 465 077 London SW11 1EN, UK w: www.russel.org.uk _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
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