User Tools

Site Tools


doc:appunti:hardware:raspberrypi_nas

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
doc:appunti:hardware:raspberrypi_nas [2021/03/31 17:13] – [Home Mediacenter and NAS with the Raspberry Pi] niccolodoc:appunti:hardware:raspberrypi_nas [2021/04/02 15:47] (current) – [Home Mediacenter and NAS with the Raspberry Pi] niccolo
Line 15: Line 15:
  
 {{.:raspberrypi:forbidden-mpg4.png?90 |MPEG4 Warning}} {{.:raspberrypi:forbidden-mpg4.png?90 |MPEG4 Warning}}
-**WARNING** :!: There is another potential problem with the **Raspberry Pi 4**: due the increased CPU power, the designers decided to drop the **H263** and **MPG4** codecs from the hardware. That codecs were enabled in-hardware into the older Raspberry Pi models and the license price were included into the hardware price. In older models you could also purchase additional licenses, e.g. for **MPEG2** and **VC-1**; this is no longer an option on the Raspberry Pi 4. My experience is not satisfying with sofware decoding of MPEG4 streams (e.g. some produced by the XviD library): whereas the LibreELEC distribution is smooth enough, the RaspiOS one produces **unacceptable jerky video playback**.+**WARNING** :!: There is another potential problem with the **Raspberry Pi 4**: due the increased CPU power, the designers decided to drop the **H263** and **MPG4** codecs from the hardware. That codecs were enabled in-hardware into the older Raspberry Pi models and the license price was included into the hardware price. In older models you could also purchase additional licenses, e.g. for **MPEG2** and **VC-1**; this is no longer an option on the Raspberry Pi 4. experience a **[[https://github.com/raspberrypi/linux/issues/4257|bug]]** with **Kodi** and **kernel 5.10**: software decoding of MPEG4 streams (e.g. the ones produced by the XviD library) were terribly jerky. I had to downgrade to **kernel 4.19** to solve the problem. Notice that the **LibreELEC 9.2** and **10.0 Beta** distributions play the same file smoothly.
 ====== Subsystems ====== ====== Subsystems ======
  
doc/appunti/hardware/raspberrypi_nas.txt · Last modified: 2021/04/02 15:47 by niccolo