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media: coda: add decoder MPEG-2 profile and level controls 

The MPEG-2 decoder firmware reports profile and level indication that
can be used to set V4L2 MPEG-2 profile and level controls

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Philipp Zabel 2019-05-27 08:20:11 -04:00 committed by Mauro Carvalho Chehab
parent 5902bca94a
commit 8a8621ba01
4 changed files with 76 additions and 1 deletions
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2
drivers/media/platform/coda/Makefile
View File

@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
coda-objs := coda-common.o coda-bit.o coda-gdi.o coda-h264.o coda-mpeg4.o coda-jpeg.o
coda-objs := coda-common.o coda-bit.o coda-gdi.o coda-h264.o coda-mpeg2.o coda-mpeg4.o coda-jpeg.o
obj-$(CONFIG_VIDEO_CODA) += coda.o
obj-$(CONFIG_VIDEO_IMX_VDOA) += imx-vdoa.o

25
drivers/media/platform/coda/coda-common.c
View File

@ -1590,6 +1590,15 @@ void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc,
profile = coda_h264_profile(profile_idc);
level = coda_h264_level(level_idc);
break;
case V4L2_PIX_FMT_MPEG2:
codec_name = "MPEG-2";
profile_cid = V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE;
level_cid = V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL;
profile_ctrl = ctx->mpeg2_profile_ctrl;
level_ctrl = ctx->mpeg2_level_ctrl;
profile = coda_mpeg2_profile(profile_idc);
level = coda_mpeg2_level(level_idc);
break;
case V4L2_PIX_FMT_MPEG4:
codec_name = "MPEG-4";
profile_cid = V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE;
@ -1949,6 +1958,8 @@ static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
ctx->params.mpeg4_inter_qp = ctrl->val;
break;
case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE:
case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL:
case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
/* nothing to do, these are fixed */
@ -2129,6 +2140,20 @@ static void coda_decode_ctrls(struct coda_ctx *ctx)
if (ctx->h264_level_ctrl)
ctx->h264_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
ctx->mpeg2_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
&coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE,
V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH, 0,
V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH);
if (ctx->mpeg2_profile_ctrl)
ctx->mpeg2_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
ctx->mpeg2_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
&coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL,
V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH, 0,
V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH);
if (ctx->mpeg2_level_ctrl)
ctx->mpeg2_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
ctx->mpeg4_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
&coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY, 0,

44
drivers/media/platform/coda/coda-mpeg2.c Normal file
View File

@ -0,0 +1,44 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Coda multi-standard codec IP - MPEG-2 helper functions
*
* Copyright (C) 2019 Pengutronix, Philipp Zabel
*/
#include <linux/kernel.h>
#include <linux/videodev2.h>
#include "coda.h"
int coda_mpeg2_profile(int profile_idc)
{
switch (profile_idc) {
case 5:
return V4L2_MPEG_VIDEO_MPEG2_PROFILE_SIMPLE;
case 4:
return V4L2_MPEG_VIDEO_MPEG2_PROFILE_MAIN;
case 3:
return V4L2_MPEG_VIDEO_MPEG2_PROFILE_SNR_SCALABLE;
case 2:
return V4L2_MPEG_VIDEO_MPEG2_PROFILE_SPATIALLY_SCALABLE;
case 1:
return V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH;
default:
return -EINVAL;
}
}
int coda_mpeg2_level(int level_idc)
{
switch (level_idc) {
case 10:
return V4L2_MPEG_VIDEO_MPEG2_LEVEL_LOW;
case 8:
return V4L2_MPEG_VIDEO_MPEG2_LEVEL_MAIN;
case 6:
return V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH_1440;
case 4:
return V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH;
default:
return -EINVAL;
}
}

6
drivers/media/platform/coda/coda.h
View File

@ -122,6 +122,8 @@ struct coda_params {
s8 h264_chroma_qp_index_offset;
u8 h264_profile_idc;
u8 h264_level_idc;
u8 mpeg2_profile_idc;
u8 mpeg2_level_idc;
u8 mpeg4_intra_qp;
u8 mpeg4_inter_qp;
u8 gop_size;
@ -217,6 +219,8 @@ struct coda_ctx {
struct v4l2_ctrl_handler ctrls;
struct v4l2_ctrl *h264_profile_ctrl;
struct v4l2_ctrl *h264_level_ctrl;
struct v4l2_ctrl *mpeg2_profile_ctrl;
struct v4l2_ctrl *mpeg2_level_ctrl;
struct v4l2_ctrl *mpeg4_profile_ctrl;
struct v4l2_ctrl *mpeg4_level_ctrl;
struct v4l2_fh fh;
@ -330,6 +334,8 @@ int coda_sps_parse_profile(struct coda_ctx *ctx, struct vb2_buffer *vb);
int coda_h264_sps_fixup(struct coda_ctx *ctx, int width, int height, char *buf,
int *size, int max_size);
int coda_mpeg2_profile(int profile_idc);
int coda_mpeg2_level(int level_idc);
int coda_mpeg4_profile(int profile_idc);
int coda_mpeg4_level(int level_idc);