HD input on server to MVP, any problems?

[mkenyon2]

How does that work if I have a High Def tuner and record Hi Dev programs on my server, but feed it out to an MVP?

[Spartan]

You can't without transcoding the source first. This is the reason I recently built a htpc to act as a client...

[mvallevand]

If you record using the ts mux, your HD files will be automatically transcoded for use on the mvp.

Martin

[flyswatta]

Hmm, I record all of my atsc as .ts files, but when I went to play one via the mvp, I just got a black screen. My server cpu shot up for a while (ffmpeg) but it never sent the video. This would be really cool if I could transcode .ts to .mpg on the fly.

[mvallevand]

Don't forget to add the appropriate -s and -f values for PAL/NTSC to lower to SD res ie.

<MVPFFmpegTranscodeTS>-y -i "{SOURCE_FILE}" -async 15 -b 2400k -acodec copy -r 29.97 -s 352x240 -f svcd "{DEST_FILE}"</MVPFFmpegTranscodeTS>

Martin

[flyswatta]

Don't forget to add the appropriate -s and -f values for PAL/NTSC to lower to SD res ie.

<MVPFFmpegTranscodeTS>-y -i "{SOURCE_FILE}" -async 15 -b 2400k -acodec copy -r 29.97 -s 352x240 -f svcd "{DEST_FILE}"</MVPFFmpegTranscodeTS>

Martin

Hmm, it started to work (for about 30 seconds). This is a long standing problem I've been having with transcoding on the fly (mostly with AVIs). I've been meaning to fix it, but haven't gotten to it. Sigh, I guess there's no better time than the present...

Thanks!

[flyswatta]

Okay, I was able to get AVIs to transcode - I let it run for about 15 minutes or so, so I'm convinced that at least my previous issue is resolved.

Whenever I try to play a 1080 stream, it starts trancoding but then stops after about 10 seconds or so. Any ideas?

[mvallevand]

This sure sounds like your PC isn't fast enough to transcode 1080i to SD in real time even using the low SD settings I suggested. As I wrote in the MVP forum about HD MKV otf transcoding, (where this thread belongs), some machines won't be able to keep up in real-time.

The only suggestion is to significantly increase the transcode pre-play delay buffer and then if that fails use the mpvmc dongle in case it is a dongle time out issue.

Martin

[flyswatta]

Actually I wouldn't be surprised if the box couldn't transcode it fast enough (see siggy). I'm figuring that's the culprit. Thanks!

[jksmurf]

This sure sounds like your PC isn't fast enough to transcode 1080i to SD in real time even using the low SD settings I suggested. As I wrote in the MVP forum about HD MKV otf transcoding, (where this thread belongs), some machines won't be able to keep up in real-time. Martin

That's what happened to me using zehds utility... played 3 secs then stopped even with 12000 or 15000 delay. Still I have the mother of all machines...

k.