[vlc-devel] [PATCH v2 0/3] Add plugins for MMAL/Raspberry Pi

[Julian Scheel]

Quick note: A v3 patch will follow later today, containing Makefile 
fixes and a minor enhancement in the decoder behaviour.

Am 08.04.2014 10:28, schrieb Julian Scheel:
> ===
> Update summary v2:
> - Rework configure.ac to autodetect presence of mmal
> - Reformat code to avoid spaghetti lines
> - Amend NEWS, MODULES_LIST and POTFILES
> - For patch specific changes, see single patch mails
> ===
>
> This patch series introduces a decoder as well as a video output plugin using
> the Multi Media Abstraction Layer (mmal) by Broadcom, found on the Raspberry
> Pi. While there is support for the Raspberry Pi in the VLC OMX plugins already
> these plugins come with some advantages:
>
>   - Support for zerocopy through opaque pointers
>   - Support for native overlay blending through DispManX
>   - Support for automatic HDMI mode adaptation through tvservice
>   - Dramatically smaller/simpler code-base than the OMX plugins have, due to
>     the ease of the MMAL API compared to OMX
>
> In our testing the plugins work very reliable already. As of now for building
> the decoder module the rpi-userland needs to be patched manually with the
> patches from:
> https://github.com/raspberrypi/userland/pull/160
>
> They should be mainlined into rpi-userland soon and will then be available
> through common Raspberry distribution updates.
>
> For the future we plan to add a deinterlace plugin, but for this we are
> pending on the Broadcom/Raspberry team to expose the deinterlace filters
> through MMAL API.
>
> Looking forward to see some comments!
>
> Cheers,
> Julian & Dennis
>
> Dennis Hamester (2):
>    video_output/mmal: Add mmal based video output plugin
>    codec/mmal: Add MMAL-based decoder plugin
>
> Julian Scheel (1):
>    mmal: Register opaque fourcc in core as fake_fmt
>
>   NEWS                            |   2 +
>   configure.ac                    |  54 +++
>   include/vlc_fourcc.h            |   3 +
>   modules/MODULES_LIST            |   2 +
>   modules/codec/Makefile.am       |  10 +
>   modules/codec/mmal.c            | 578 ++++++++++++++++++++++++
>   modules/video_output/Modules.am |   8 +
>   modules/video_output/mmal.c     | 951 ++++++++++++++++++++++++++++++++++++++++
>   po/POTFILES.in                  |   2 +
>   src/misc/fourcc.c               |   3 +-
>   10 files changed, 1612 insertions(+), 1 deletion(-)
>   create mode 100644 modules/codec/mmal.c
>   create mode 100644 modules/video_output/mmal.c
>