Electronics > Microcontrollers

System-on-Chip Video Player IC?

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x0054:
I am looking for an inexpensive SOC that I could program to read video files from an SD card and play them to a screen and audio output of some kind. The videos are 480p and can be encoded in whatever format that the IC prefers. For output I am feeding the image directly to a 480P LVDS screen, so if it can do that directly, that would be perfect.

I am optimizing for cost and boot time. This would be a chip that might be used in video capable digital photo frames, or maybe kiosk displays. I am shooting for something under $10 per IC. Any more expensive then that and Pi Zero starts to look appealing, but for boot time I wanted to find something more purpose built. Spent the day rummaging on Digikey with no luck.

 - Bogdan

evb149:
Edited #2

Almost any SOC targeting the HMI/ advanced UI market might do.

But you say "play video" so of course the key question is what formats may the video be in?
If the chip does have a video playback accelleration decoder, it will not be for all video formats.
Maybe basic chips have like DVD-video / MPEG-2 type decoding and maybe not much else.
More capable chips could offer several other HW / accelerated decoders.
Even so many of the other actual encoding format parameters may still matter beyond the resolution
and frame rate.

Anyway look for chips with a GPU, that is one good indication.

NXP I.MX6 series has several such, as well as I.MX7 and I.MX8 and several I.MX6 ICs are used for
low video quality HMIs / video / kiosk kinds of applications with limited video resolution decoding / playback capability
and built in parallel or maybe DSI LCD interface capability etc. etc.

TI has the DaVinci series and I don't recall if any of the Sitara series is relevant, I think so.
They renamed their series and divided them so much it's hard to remember between OMAP / Sitara / Davinci / etc.

ST has a MPU line with GPU options.

There are also asian vendor based ICs from the likes of rockchip, allwinner, mediatek?, realtek?, or whoever, I forget the devices / companies names but there are a couple that are really popular for video playback "stick" devices.
https://en.wikipedia.org/wiki/Rockchip
https://en.wikipedia.org/wiki/Allwinner_Technology
https://www.cnx-software.com/2016/12/30/allwinner-v3s-dual-camera-soc-comes-with-64mb-dram/
https://www.cnx-software.com/2015/04/02/allwinner-v3-soc-targets-1080p60-action-cameras-supports-linux-or-camdroid-os/
...

They are probably more integrated / lower cost / lower flexibility maybe.

BTW a couple of these are "SOC"s in the sense of having in-package SRAM / DRAM enough to work.
But mostly you will need DDRx DRAM or SDRAM to some extent additionally, and possibly also PMIC / regulator ICs and such
so the BOM cost is not just always for the SOC chip itself.


amyk:
If you look around you might find companies wanting to send things that do that to you for free... https://www.eevblog.com/forum/projects/now-what-can-i-do-with-120x-of-these/

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