Any example for jpeg encoding on rockchip_mpp?

Raph_K · February 18, 2019, 6:18am

I am looking for hardware encoder of rockchip_mpp, as encoding JPEG (100%) in grayscale image.
I’d compiled rockchip_mpp and tested compile&link with ffmpeg (w/ rkmpp) as well.
So I believe it should be able to use rockchip_mpp to encoding image to JPEG in hardware level, but there’s nothing like example within MPEG video (H.26x).
I need encode an image thru rkmpp in realtime, wish to impressive faster than CPU time.
Searched many time with google but seems hard to find out actual examples.
So I begging here, is there any helpful example ?

Regards, Raph.K.

Loic · February 19, 2019, 8:41am

This is a gstreamer specific implementation, but the following should help (cf gst_mpp_jpeg_enc_open and gst_mpp_jpeg_enc_set_format) :

github.com

rockchip-linux/gstreamer-rockchip/blob/master/gst/rockchipmpp/gstmppjpegenc.c

/*
 * Copyright 2018 Rockchip Electronics Co., Ltd
 *     Author: Randy Li <randy.li@rock-chips.com>
 *
 * Copyright 2021 Rockchip Electronics Co., Ltd
 *     Author: Jeffy Chen <jeffy.chen@rock-chips.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,

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Raph_K · February 19, 2019, 8:45am

Dear @Loic,
Thank you !
I’ll be check this !

Raph_K · July 11, 2019, 6:43am

Dear @Loic,
I’ve tried many times to use mpp in my all RK3399 boards, but all failure by mpp fd zero issue.
I’d written a new issue for solve this in here.
Thank you !