HI, First I am by no means a developer. I have a Nano because I thought it was going to be a nice toy to use to transcode video with, I originally started trying to use jetson-ffmpeg as I responably familiar with that, but there appears to be an issue causing intermittant blocking on video. So I …

I don’t think that gstreamer will fit your needs… Dolby TrueHD support in gstreamer may still be experimental and matroska container plugins may not be easy to use from gst-launch for subtitles (container does store utf8 as does muxer expects, but demuxer sends pango-markup format). I have also che…

First thing you have to manage is mkv container demuxing/muxing. Second thing is that there is a bug in nvv4l2decoder with H264 parsing in some L4T versions. The workaround is just removing h264parse before nvv4l2decoder. So just try: gst-launch-1.0 filesrc location=2.mkv ! matroskademux ! h264pa…

That’s awesome, thanks a bundle, the first one works (once I reigned in the bitrate!!). Next thing to figure out is how to copy all the audio and subtitle streams. Thanks again Toby

You would find details about matroska muxer and demuxer with: gst-inspect-1.0 matroskamux gst-inspect-1.0 matroskademux You would use multiple sub-pipelines, using queue for each output from muxer (as you would do after tee) and adding a queue for each input of muxer. This would save synchronizati…

Hi, Thanks both for the replies, i have what i need now. Appreciate it, wish all forums had this level of response :)

HI , Once again thanks for the help so far, its been useful in my little home project. I do have need of some help, i am really struggling understanding much about gstreamer, its pipeline, pads,caps etc. if you could provide an example based on this example that will recode the video from x264 t…

Hi, The case is a bit complicated and we suggest go to gstreamer forum to get further help. Once you get a working pipeline, please replace software decoder(such as avdec_h264)/encoder(x265enc) with hardware decoder(nvv4l2decoder)/encoder(nvv4l2h265enc) to enable hardware acceleration.

<a name="p-711136-for-gstreamer-learning-you-may-check-thishttpsgstreamerfreedesktoporgdocumentationapplication-developmentintroductiongstreamerhtmlgi-languagec-for-global-architecture-you-may-also-read-this-posthttpsforumsdevelopernvidiacomtbuilding-a-gstreamer-pipeline1576684uhoney_patouceul-for-more-jetson-related-details-and-experiment-yourself-it-should-be-harmless-if-taking-care-not-to-fill-your-root-filesystem-recording-for-long-or-in-raw-mode-not-sure-but-i-may-give-it-a-try-if-1" class="anchor" href="#p-711136-for-gstreamer-learning-you-may-check-thishttpsgstreamerfreedesktoporgdocumentationapplication-developmentintroductiongstreamerhtmlgi-languagec-for-global-architecture-you-may-also-read-this-posthttpsforumsdevelopernvidiacomtbuilding-a-gstreamer-pipeline1576684uhoney_patouceul-for-more-jetson-related-details-and-experiment-yourself-it-should-be-harmless-if-taking-care-not-to-fill-your-root-filesystem-recording-for-long-or-in-raw-mode-not-sure-but-i-may-give-it-a-try-if-1" aria-label="Heading link"> For gstreamer learning, you may check this for global architecture. You may also read this post for more jetson-related details and experiment yourself, it should be harmless if taking care not to fill your root filesystem recording for long or in raw mode. Not sure, but I may give it a try if : y…

Hi thanks for these resources. I have actually got to the bottom of a lot of it. And can deal with what’s left left in other ways But thanks to yourselves and the gstreamer mailing list I have a working pipeline that transcodes video and passes all audio through (apart from true hd for some reaso…

Hi, So, with the help from yourselves and the people on the gstreamer-devel@lists.freedesktop.org mailing list I have a nearly working example Assuming 6 audio tracks and 1 video track. gst-launch-1.0 filesrc location=“/external/Staging/2.mkv” ! matroskademux name=demux demux.video_0 ! queue ! …

Video Transcode with G-Streamer

Robotics & Edge Computing Jetson Systems Jetson Nano

DaneLLL February 26, 2021, 2:57am 6

Hi,
Please also refer to
Jetson Nano H264 to H265 transcode - #3 by DaneLLL

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Video Transcode with G-Streamer

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