102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2016 MediaTek Inc.
|
||
|
|
* Author: PC Chen <pc.chen@mediatek.com>
|
||
|
|
* Tiffany Lin <tiffany.lin@mediatek.com>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program 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 General Public License for more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _VDEC_DRV_IF_H_
|
||
|
|
#define _VDEC_DRV_IF_H_
|
||
|
|
|
||
|
|
#include "mtk_vcodec_drv.h"
|
||
|
|
#include "mtk_vcodec_dec.h"
|
||
|
|
#include "mtk_vcodec_util.h"
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* struct vdec_fb_status - decoder frame buffer status
|
||
|
|
* @FB_ST_NORMAL : initial state
|
||
|
|
* @FB_ST_DISPLAY : frmae buffer is ready to be displayed
|
||
|
|
* @FB_ST_FREE : frame buffer is not used by decoder any more
|
||
|
|
*/
|
||
|
|
enum vdec_fb_status {
|
||
|
|
FB_ST_NORMAL = 0,
|
||
|
|
FB_ST_DISPLAY = (1 << 0),
|
||
|
|
FB_ST_FREE = (1 << 1)
|
||
|
|
};
|
||
|
|
|
||
|
|
/* For GET_PARAM_DISP_FRAME_BUFFER and GET_PARAM_FREE_FRAME_BUFFER,
|
||
|
|
* the caller does not own the returned buffer. The buffer will not be
|
||
|
|
* released before vdec_if_deinit.
|
||
|
|
* GET_PARAM_DISP_FRAME_BUFFER : get next displayable frame buffer,
|
||
|
|
* struct vdec_fb**
|
||
|
|
* GET_PARAM_FREE_FRAME_BUFFER : get non-referenced framebuffer, vdec_fb**
|
||
|
|
* GET_PARAM_PIC_INFO : get picture info, struct vdec_pic_info*
|
||
|
|
* GET_PARAM_CROP_INFO : get crop info, struct v4l2_crop*
|
||
|
|
* GET_PARAM_DPB_SIZE : get dpb size, unsigned int*
|
||
|
|
*/
|
||
|
|
enum vdec_get_param_type {
|
||
|
|
GET_PARAM_DISP_FRAME_BUFFER,
|
||
|
|
GET_PARAM_FREE_FRAME_BUFFER,
|
||
|
|
GET_PARAM_PIC_INFO,
|
||
|
|
GET_PARAM_CROP_INFO,
|
||
|
|
GET_PARAM_DPB_SIZE
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* struct vdec_fb_node - decoder frame buffer node
|
||
|
|
* @list : list to hold this node
|
||
|
|
* @fb : point to frame buffer (vdec_fb), fb could point to frame buffer and
|
||
|
|
* working buffer this is for maintain buffers in different state
|
||
|
|
*/
|
||
|
|
struct vdec_fb_node {
|
||
|
|
struct list_head list;
|
||
|
|
struct vdec_fb *fb;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vdec_if_init() - initialize decode driver
|
||
|
|
* @ctx : [in] v4l2 context
|
||
|
|
* @fourcc : [in] video format fourcc, V4L2_PIX_FMT_H264/VP8/VP9..
|
||
|
|
*/
|
||
|
|
int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vdec_if_deinit() - deinitialize decode driver
|
||
|
|
* @ctx : [in] v4l2 context
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
void vdec_if_deinit(struct mtk_vcodec_ctx *ctx);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vdec_if_decode() - trigger decode
|
||
|
|
* @ctx : [in] v4l2 context
|
||
|
|
* @bs : [in] input bitstream
|
||
|
|
* @fb : [in] frame buffer to store decoded frame, when null menas parse
|
||
|
|
* header only
|
||
|
|
* @res_chg : [out] resolution change happens if current bs have different
|
||
|
|
* picture width/height
|
||
|
|
* Note: To flush the decoder when reaching EOF, set input bitstream as NULL.
|
||
|
|
*/
|
||
|
|
int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct mtk_vcodec_mem *bs,
|
||
|
|
struct vdec_fb *fb, bool *res_chg);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vdec_if_get_param() - get driver's parameter
|
||
|
|
* @ctx : [in] v4l2 context
|
||
|
|
* @type : [in] input parameter type
|
||
|
|
* @out : [out] buffer to store query result
|
||
|
|
*/
|
||
|
|
int vdec_if_get_param(struct mtk_vcodec_ctx *ctx, enum vdec_get_param_type type,
|
||
|
|
void *out);
|
||
|
|
|
||
|
|
#endif
|