HLS sink supporting multiple bitrates
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HLS sink supporting multiple bitrates
 
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Hi Everyone, Firstly, thanks for such a great system as Gstreamer – it’s amazing. I’m trying to use Gstreamer to create multiple bitrates which are then created in the HLS using #EXT-X-STREAM-INF:BANDWIDTH=1280000 etc. My test pipeline currently looks like: gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-h264,width=320,height=240,framerate=5/1 ! avdec_h264 ! tee name=t ! queue ! x264enc bitrate=100 ! h264parse ! mux. t. ! queue ! x264enc bitrate=200 ! h264parse ! mux. t. ! queue ! x264enc bitrate=300 ! h264parse ! mux. mpegtsmux name=mux ! hlssink But the playlist doesn’t list the bandwidth at all. I assume it’s just not implemented or am I doing something wrong? If it’s not implemented, it would be a nice to have at some point. Cheers, Andy _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel |
Re: HLS sink supporting multiple bitrates
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Administrator
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Yes, its unsupported as of now. Please file a bugzilla feature request
There is no way for the muxer to know the audio+video. It should not be difficult to implement that, or may be handle the manifest file within your application(outside of hlssink element) ~BO |
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Hi All,
I'm new to this mailing list as well as gstreamer, I have quick question on HLS streams playback, if we use the multiple bit rates on gst-launch, what will be the default bitrate selecting for the playback ? is it selecting higher bandwidth or lower bandwidth
bitrate for playback ?
gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-h264,width=320,height=240,framerate=5/1 ! avdec_h264 ! tee name=t ! queue ! x264enc bitrate=100 ! h264parse ! mux. t. ! queue ! x264enc bitrate=200 ! h264parse ! mux. t. ! queue ! x264enc bitrate=300 ! h264parse ! mux. mpegtsmux name=mux ! hlssink
I have one more question on using the trick play request,
Could you please let me know how to use the play rate( 6x, 12x , 30x and 64x) for fast forward the hls playback using gst-luanch-1.0.
Thanks in advance.
Regards Hemappa B
From: gstreamer-devel <[hidden email]> on behalf of Baby Octopus <[hidden email]>
Sent: Friday, January 13, 2017 3:46:41 PM To: [hidden email] Subject: Re: HLS sink supporting multiple bitrates Yes, its unsupported as of now. Please file a bugzilla feature request
There is no way for the muxer to know the audio+video. It should not be difficult to implement that, or may be handle the manifest file within your application(outside of hlssink element) ~BO -- View this message in context: http://gstreamer-devel.966125.n4.nabble.com/HLS-sink-supporting-multiple-bitrates-tp4681442p4681443.html Sent from the GStreamer-devel mailing list archive at Nabble.com. _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
Regards,
Hemappa B |
Re: HLS sink supporting multiple bitrates
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Administrator
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On Fri, Jan 13, 2017 at 5:09 PM, Hemappa Basappa [via GStreamer-devel] <[hidden email]> wrote:
It entirely depends on player implementation. HLS standard does not dictate anything on starting bitrate. However, most playesr start with lowest bitrate, and then switch based on bandwidth availability
You are muxing 3 different Video elementary stream into a single muxer. This will have one TS stream with 3 video's For multibitrate, you would need something like video1 ! mux1 ! hlssink1 \ video2 ! mux2 ! hlssink2 \ video3 ! mux3 ! hlssink3
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