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by Dweller
Thu Oct 10, 2013 7:24 pm
Forum: Raspbian
Topic: Mythtv Working (Packages Provided)
Replies: 115
Views: 67670

Re: Mythtv Working (Packages Provided)

Woohoo.. using the latest openelec from http://openelec.thestateofme.com/official_images/ I'm able to watch channels from mythbackend =) Pi One, running Mythbackend, following the steps from my 1st post.. configured with an hauppauge hd pvr (hardware h264 encoder) I need to work on this one more to ...
by Dweller
Thu Oct 10, 2013 4:03 pm
Forum: Raspbian
Topic: Mythtv Working (Packages Provided)
Replies: 115
Views: 67670

Re: Mythtv Working (Packages Provided)

A quick update.. put xbmc on the same pi as the mythbackend/frontend.. xbmc's cmyth add-on successfully connects to the backend.. finds the channels.. but playback results in "only audio" :( It's the right audio for the channel, but xbmc seems content to display me a nice (slowly) rotating 3d graphi...
by Dweller
Wed Oct 09, 2013 7:07 am
Forum: Raspbian
Topic: Mythtv Working (Packages Provided)
Replies: 115
Views: 67670

Re: Mythtv Working (Packages Provided)

I've been playing with the binary packages here over the last few days.. and I've finally got the frontend to talk to the backend.. (not got video to work etc, but wasn't trying to get that to work so much as see the frontend & backend talk to each other before moving on to try xbmc) TLDR: make sure...
by Dweller
Wed Oct 02, 2013 1:23 pm
Forum: Camera board
Topic: taking pictures fastr than 2 seconds
Replies: 42
Views: 9127

Re: taking pictures fastr than 2 seconds

Max I ever saw was around ~5fps jpegs per second.. using raspistill as a base, looping aggregating frames from MMAL, resubmitting for a new frame as soon as the last frame had been completed.. resolution did make a difference, but the ~5fps was at 640x480 with higher resolutions being slower as expe...
by Dweller
Wed Jul 03, 2013 9:52 am
Forum: Camera board
Topic: Raspistill timelapse. Images get progressively darker
Replies: 117
Views: 34403

Re: Raspistill timelapse. Images get progressively darker

Probably you are simply not giving the system enough frames between captures to actually work out the correct gain to use, as you say, so perhaps different from the other cases. Indeed.. I'll keep an eye on this thread in case the root cause is found, to retest & see if related.. It's a slim chance...
by Dweller
Tue Jul 02, 2013 7:11 pm
Forum: Camera board
Topic: Raspistill timelapse. Images get progressively darker
Replies: 117
Views: 34403

Re: Raspistill timelapse. Images get progressively darker

I can get the progressively darker images by reducing the -tl value to somewhere in the magic window of 'slightly above where it stops grabbing'.. try 640x480, with a -tl of 70, -hf -vf and loop reducing the -tl value until the image stops capturing, then backup to the last working value and grab fo...
by Dweller
Mon Jul 01, 2013 5:57 pm
Forum: Camera board
Topic: Capture raw image to memory buffer (C/C++)
Replies: 25
Views: 13825

Re: Capture raw image to memory buffer (C/C++)

No network dropouts here thankfully, else the whole attempt at low latency would be for nowt.. and mines an original pi with the polyfuses & 256mb.. Did see some issues with an app using i2c from java which seemed to introduce rather bursty lag to the mjpg stream, both work fine independently, so I'...
by Dweller
Mon Jul 01, 2013 2:04 pm
Forum: Camera board
Topic: Capture raw image to memory buffer (C/C++)
Replies: 25
Views: 13825

Re: Capture raw image to memory buffer (C/C++)

Tried the suggested changes inside my mjpg plugin.. no real difference, avg of around 4fps as reported by the javascript.. I'll try adding some timestamped logs to the plugin next, see where the time goes.. at least that will answer if the callbacks aggregating the image take longer than the intra f...
by Dweller
Mon Jul 01, 2013 7:04 am
Forum: Camera board
Topic: Capture raw image to memory buffer (C/C++)
Replies: 25
Views: 13825

Re: Capture raw image to memory buffer (C/C++)

For fast frame rates you should be using video mode. Not sure why H264 is proving problematic in browsers - its very much the standard. Oh sure, the browsers can decode h264, but not when it's an elementary video stream, the options come down to.. MJPG - Built in support for all browsers, each fram...
by Dweller
Sun Jun 30, 2013 7:29 pm
Forum: Camera board
Topic: Capture raw image to memory buffer (C/C++)
Replies: 25
Views: 13825

Re: Capture raw image to memory buffer (C/C++)

I've been playing with code to repeatedly grab jpgs.. like the guys over in http://www.raspberrypi.org/phpBB3/viewtopic.php?f=43&t=45178 I've also coded a custom mjpg streamer plugin, and found if the interval goes below ~100ms, that the images just go black.. (actual threshold seems to be around 63...

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