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Custom MPEG-TS Input » History » Version 10

Nicolas C, 2014-11-18 11:40

1 1 Jaroslav Kysela 
h1. Custom MPEG-TS Input
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h2. Requirement





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The TVHeadend 3.9.2100 and up for the pipe:// URL support. Note that TVHeadend expects the input in the raw MPEG-TS format with correct PAT/PMT tables.





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h2. IPTV URLs





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Note: Always try the command without pipe:// prefix on standard command line, if it works with a stdout redirection to a file!!





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h3. Internet Radios





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Unfortunately ffmpeg can't set the right header for Radios, so they'll show up as TV Channels :(. So while its not ideal, you can show a static image (the Radio Logo maybe?)





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<pre>





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pipe:///usr/bin/ffmpeg -loglevel fatal -nostdin -loop 1 -y -i /path/to/image.png -re -i INPUTLINK -vcodec libx264 -acodec copy -mbd rd -copyinkf -flags +ilme+ildct -fflags +genpts -metadata service_provider=RADIOPROVIDER -metadata service_name=RADIONAME -tune zerolatency -f mpegts pipe:!





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</pre>





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h3. Transcoding.





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YMMV with different ffmpeg/libav versions. In Red Hat's (Fedora/Centos) build of ffmpeg, aac transcoding is experimental, so you have to enable -strict -2





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<pre>





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pipe:///usr/bin/ffmpeg -loglevel fatal -nostdin -i INPUTLINK -vcodec libx264 -acodec aac -strict -2 -copyinkf -flags +ilme+ildct -fflags +genpts -metadata service_provider=STRING -metadata service_name=STRING -f mpegts -tune zerolatency pipe:1





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</pre>





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Try to transcode as little as possible, since it will impact your cpu usage. And if you're using tvheadend to re-transcode... well..





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So if your channel already has aac audio, maybe you only need to transcode the video stream.





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<pre>





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pipe:///usr/bin/ffmpeg -loglevel fatal -nostdin -i INPUTLINK -vcodec libx264 -acodec copy -copyinkf -flags +ilme+ildct -fflags +genpts





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  -metadata service_provider=STRING -metadata service_name=STRING -f mpegts -tune zerolatency pipe:1





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</pre>





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h3. Direct copy





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<pre>





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pipe:///usr/bin/ffmpeg -loglevel fatal -i INPUTLINK -vcodec copy -acodec copy -metadata service_provider=STRING





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  -metadata service_name=STRING -f mpegts -tune zerolatency pipe:1





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</pre>





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h2. Other solutions (HTTP proxy)





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"A simple ffmpeg HTTP proxy using nodejs": https://github.com/Jalle19/node-ffmpeg-mpegts-proxy