Difference between revisions of "Mainline Hardware Encoding"

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(Create a page documenting how to hardware encode stuff with mainline kernels)
 
m (Turns out these probably have VP8 encoding)
 
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{| class="wikitable plainrowheaders" border="1"
{| class="wikitable plainrowheaders" border="1"
! scope="col" | Codec
! scope="col" {{Diagonal split header|Codec|SoC}}
! scope="col" | RK3328
! scope="col" | RK3399
! scope="col" | RK3399
! scope="col" | RK3566
! scope="col" | RK3566
Line 12: Line 13:
|-
|-
! scope="row" | JPEG
! scope="row" | JPEG
| style="text-align:center;"| N/A
| style="background:PaleGreen; text-align:center;"| Yes
| style="background:PaleGreen; text-align:center;"| Yes
| style="background:LightYellow; text-align:center;"| In review
| style="background:LightYellow; text-align:center;"| In review
| style="background:#F99; text-align:center;"| No
|-
! scope="row" | VP8
| style="text-align:center;"| N/A
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
|-
|-
! scope="row" | H.264/AVC
! scope="row" | H.264/AVC
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
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! scope="row" | H.265/HEVC
! scope="row" | H.265/HEVC
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
| style="text-align:center;"| N/A
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
| style="background:#F99; text-align:center;"| No
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This example converts an input MP4 file to an output MJPEG-inside-MKV file at JPEG quality 95, without any audio.
This example converts an input MP4 file to an output MJPEG-inside-MKV file at JPEG quality 95, without any audio.


    gst-launch-1.0 filesrc location=input.mp4 ! qtdemux name=demux demux.video_0 ! decodebin ! videoconvert ! v4l2jpegenc extra-controls=s,compression_quality=95 ! matroskamux ! filesink location=output.mkv
gst-launch-1.0 filesrc location=input.mp4 ! qtdemux name=demux demux.video_0 ! decodebin ! videoconvert ! v4l2jpegenc extra-controls=s,compression_quality=95 ! matroskamux ! filesink location=output.mkv
 
= See Also =
 
* [[Mainline Hardware Decoding]]


[[Category:Quartz64]] [[Category:ROCKPro64]] [[Category:Rockchip RK3566]] [[Category:Rockchip RK3399]] [[Category:PineBook Pro]] [[Category:PinePhone Pro]] [[Category:PineNote]] [[Category:Rockchip RK3588]]
[[Category:Quartz64]] [[Category:ROCKPro64]] [[Category:Rockchip RK3566]] [[Category:Rockchip RK3399]] [[Category:PineBook Pro]] [[Category:PinePhone Pro]] [[Category:PineNote]] [[Category:Rockchip RK3588]] [[Category:Rockchip RK3328]] [[Category:ROCK64]]

Latest revision as of 14:46, 29 April 2022

Mainline Hardware Encoding of video can be achieved through the V4L2 user-space API, for which currently only GStreamer implements the required code.

SoC Support

The following table shows the current supported codecs for encoding for each SoC. Support for decoding is separate.

SoC
Codec
RK3328 RK3399 RK3566 RK3588
JPEG N/A Yes In review No
VP8 N/A No No No
H.264/AVC No No No No
H.265/HEVC No N/A No No

Encoding With GStreamer

With GStreamer, in general, any V4L2 control can be set using the extra-controls=foo,name=value syntax after the encode pipeline stage identifier, where foo is any name you wish which GStreamer will promptly ignore, name is the name of the V4L2 control as shown by v4l2-ctl --list-ctrls (make sure to pick the right device with -d), and value is whatever value you want to set it to.

JPEG Encoding

This example converts an input MP4 file to an output MJPEG-inside-MKV file at JPEG quality 95, without any audio.

gst-launch-1.0 filesrc location=input.mp4 ! qtdemux name=demux demux.video_0 ! decodebin ! videoconvert ! v4l2jpegenc extra-controls=s,compression_quality=95 ! matroskamux ! filesink location=output.mkv

See Also