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media: vicodec: Introducing stateless fwht defs and structs

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Add structs and definitions needed to implement stateless
decoder for fwht and add I/P-frames QP controls to the
public api.

Signed-off-by: Dafna Hirschfeld <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Dafna Hirschfeld 2019-03-06 16:13:40 -05:00 • committed by Mauro Carvalho Chehab
commit 2495f39ce1
6 changed files with 65 additions and 29 deletions
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31
include/media/fwht-ctrls.h Normal file
View file

@ -0,0 +1,31 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* These are the FWHT state controls for use with stateless FWHT
* codec drivers.
*
* It turns out that these structs are not stable yet and will undergo
* more changes. So keep them private until they are stable and ready to
* become part of the official public API.
*/
#ifndef _FWHT_CTRLS_H_
#define _FWHT_CTRLS_H_
#define V4L2_CTRL_TYPE_FWHT_PARAMS 0x0105
#define V4L2_CID_MPEG_VIDEO_FWHT_PARAMS (V4L2_CID_MPEG_BASE + 292)
struct v4l2_ctrl_fwht_params {
__u64 backward_ref_ts;
__u32 version;
__u32 width;
__u32 height;
__u32 flags;
__u32 colorspace;
__u32 xfer_func;
__u32 ycbcr_enc;
__u32 quantization;
};
#endif

5
include/media/v4l2-ctrls.h
View file

@ -23,10 +23,11 @@
#include <media/media-request.h>
/*
* Include the mpeg2 stateless codec compound control definitions.
* Include the mpeg2 and fwht stateless codec compound control definitions.
* This will move to the public headers once this API is fully stable.
*/
#include <media/mpeg2-ctrls.h>
#include <media/fwht-ctrls.h>
/* forward references */
struct file;
@ -49,6 +50,7 @@ struct poll_table_struct;
* @p_char: Pointer to a string.
* @p_mpeg2_slice_params: Pointer to a MPEG2 slice parameters structure.
* @p_mpeg2_quantization: Pointer to a MPEG2 quantization data structure.
* @p_fwht_params: Pointer to a FWHT stateless parameters structure.
* @p: Pointer to a compound value.
*/
union v4l2_ctrl_ptr {
@ -60,6 +62,7 @@ union v4l2_ctrl_ptr {
char *p_char;
struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params;
struct v4l2_ctrl_mpeg2_quantization *p_mpeg2_quantization;
struct v4l2_ctrl_fwht_params *p_fwht_params;
void *p;
};