ITX MythTV WiFi DVR

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MythTV Related: Category:MythTV

SPECS: MUST HAVE

  • HDMI video out. TV does not have VGA input
  • Composite video input. Must accept a/v from satellite receiver.
  • WiFi networking
  • Linux supported hardware
  • hardware decoder / graphics processing

CPU

Atom versus Celeron

Intel Atom vs Intel Celeron: similar performance. Atom is newer and uses less power. Conclusion: Atom over Celeron.

Composite Video Capture

MythTV pvrusb2 driver with an external usb capture device.

This guy had trouble getting capture from composite to work

Use synaptic (Package Manager) to install ivtv-utils, (in some distro's its just ivtv and described as Tools) If you don't have VLC media player installed use synaptic to install that too. In a terminal type (might be a good idea to copy and paste this command) 

v4l2-ctl -d /dev/video0 -i 2

and press the enter key (note 2 is Composite, 1 is S-video, 0 is TV-tuner). You will get a reply saying input is now composite.

Sample Systems for Consideration (under $500)

remember: If it has USB then a wifi adapter can always be added.

Jetway Intel Atom D525 Dual Gigabit LAN Quiet MIni PC w/2GB, T3410, NC9MGL-525

  • $221.00
  • Intel Atom D525 1.8GHz (cores: x2)
  • HDMI
  • not fanless

Intel Atom D2550 Mini-ITX PC Kit w/ NVIDIA GeForce GT 610 Graphics, ZOTAC D2550ITXS-A-E, M350

  • $320.00
  • AtomTM D2550 1.86GHz (cores: x2)
  • WiFi
  • HDMI
  • not fanless

Intel Barebone System Embedded Kit/ Jetway NC9KDL-2550 Dual LAN Intel Atom D2550 1.86GHz Mini-ITX Motherboard, 2GB DDR3 SODIMM Memory, M350 Enclosure, PicoPSU-80 80W DC-DC power supply

  • $251.00
  • Atom D2550 1.86GHz (cores: ?)
  • HDMI
  • quiet fanless

Intel Atom D2550 Dual LAN & Dual COM Mini-ITX Networking PC, NF9B-2550, 2GB, M350

  • $291.00
  • Atom D2550 (cores: ?)
  • HDMI
  • quiet fanless

Giada mini Desktop (1.86 GHz Intel Atom Processor D2550, 2GB DDR3, 320G HDD, Windows 7)

  • $295
  • 1.86 GHz Atom D2550 (cores: ?)
  • HDMI
  • WiFi
  • included 320 GB HD

Giada F102D Intel Atom Dual Core Fanless Mini PC System

  • $330.00
  • Atom (Cedarview) Processor N2600 1.60GHz (cores: x2)
  • HDMI
  • WiFi
  • included 500 GB HD

H87H3-TI Intel Quad Core i5-4570S Thin Mini-ITX PC w/ 4GB, USB 3.0 & WiFi

  • $499.00
  • Intel i5-4570S 3.6GHz (cores: x4)
  • HDMI IN and HDMI OUT
  • WiFi

Gigabyte GB-BXi5-4200 Core i5 BRIX Complete PC System with 4GB Memory, 60GB mSATA SSD, WiFi

  • $470.00
  • Intel Core i5-4200U 2.60GHz (cores: x2)
  • HDMI
  • WiFi
  •  ! 60GB mSATA SSD (no hard drive) solid state only

ECS H87H3-TI Intel Quad Core i5-4570S Mini-ITX PC /4GB, USB 3.0, WiFi, Morex 557

  • $499
  • Intel i5-4570S 3.6GHz (cores: x4)
  • HDMI IN and HDMI OUT

Intel Next Unit of Computing Kit BOXD34010WYK1 Media Center PC

  • $262.00
  • Intel Core i3-4010U (cores: ?)
  • Infrared sensor on the front panel
  • HDMI

Intel Next Unit of Computing Kit with Dual HDMI, Gigabit LAN, Core i3-3217U DC3217IYE

  • $285
  • HDMI

ASRock Q1900-ITX Intel Celeron J1900 Quad Core Fanless PC w/ 2GB, M350, S/PDIF Product ID: EKARQ1900M350

  • kit itself (includes 2GB of memory by default) is $219.95.
  • Ubuntu 14.04+ platform required
  • HDMI, DVI-D, and VGA
  • Intel Celeron J1900 Quad Core
  • Intel HD Graphics; Supports Dual Display


ASRock Q1900-ITX Intel Celeron J1900 Quad Core Fanless PC w/ 2GB, M350, S/PDIF

With Hauppauge USB Live 2 

# lsusb
Bus 002 Device 002: ID 174c:3074 ASMedia Technology Inc. 
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 09da:0006 A4 Tech Co., Ltd Optical Mouse WOP-35 / Trust 450L Optical Mouse
Bus 001 Device 003: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 001 Device 005: ID 2040:c200 Hauppauge 
Bus 001 Device 002: ID 174c:2074 ASMedia Technology Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

From a maillist- Someone trying to use USB capture

This one says: "WinTV-PVR-USB2 are dirt cheap, when you can find them on ebay WinTV-HVR-1950 is its replacement with digital capability "

Here are some devices:

MythTV Hardware Compatibility

doesn't work: 

apt-get install mplayer mplayer-gui mplayer-skins

works: 

install gnome-mplayer

Supports full 720x480@30FPS capture over USB 2.0. Pixel format is packed YUV 4:2:2. Linux kernels > 2.6.32 need a patched driver. The latest driver source is available from the LinuxTV project. Look for media_build. The patch is available at the Kernel Labs blog.

mplayer -fps 30 -tv driver=v4l2:normid=0:width=720:height=480:device=/dev/video0 tv://

you may need to change your input value to switch between composite(0) and svideo(1) , mplayer -fps 30 -tv driver=v4l2:normid=0:input=1:width=720:height=480:device=/dev/video0 tv://

Motion package set type to 6 'YUYV' , input 0, norm 1, and 720 width, 480 height 

sudo apt-get install tvtime

http://ubuntuforums.org/showthread.php?t=1566714 

lsmod|grep cx231
dmesg|grep cx231

mplayer tv:// -tv driver=v4l2:device=/dev/video0

http://murga-linux.com/puppy/viewtopic.php?t=78313&sid=956fe3db924ace1a224df7029f460068

I think the device or the driver defaults to PAL. When I specify NTSC the video feed begins to work properly 

mplayer tv:// -tv driver=v4l2:norm=NTSC:input=0:device=/dev/video0

There is still no audio. And mplayer is the only thing using the device.

On audio: No sound from tv card with mplayer, only arecord/aplay

Analog Framebuffer Cards -vs- Analog Hardware Encoder Cards

Framebuffer cards are capture devices that provide raw video frames to the host system. Due to the complexity of having to set up separate audio and video capture, as well as the CPU requirements of real time capture and encoding, these types of cards are not recommended for use with MythTV. Encoder cards are instead the preferred means of analog capture.

 

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USB Analog Hardware Encoder Cards

Manufacturer Card chipset Interface CC IR Composite S-Video Component FM Codecs Inputs
Hauppauge WinTV-PVR-USB2 Cypress FX2 USB 2.0 Yes Yes Yes Yes No Yes MPEG-2 1
Hauppauge HVR-1950 Cypress FX2 USB 2.0 Yes Yes Yes Yes No Unknown MPEG-2 1
Plextor PX-TV402U-NA Unknown USB 2.0 Unknown Unknown Yes Yes No No MPEG-1/2/4 1


Capture Only These cards do not support modulated broadcasts, and only have capture ports. The Hauppauge HD-PVR is the only analog device that captures in high definition.

Manufacturer Card chipset Interface CC IR Composite S-Video Component Codecs Inputs
Hauppauge HD-PVR Unknown USB 2.0 Unknown Yes Yes Yes Yes H.264 1
Plextor PX-M402U Unknown USB 2.0 Unknown Unknown Yes Yes No MPEG-1/2/4 1

source: http://www.mythtv.org/wiki/Analog_Hardware_Encoder_Cards

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