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path: root/drivers/media/platform/qcom/venus/venc_ctrls.c
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/*
 * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
 * Copyright (C) 2017 Linaro Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only 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.
 *
 */
#include <linux/types.h>
#include <media/v4l2-ctrls.h>

#include "core.h"
#include "venc.h"

#define BITRATE_MIN		32000
#define BITRATE_MAX		160000000
#define BITRATE_DEFAULT		1000000
#define BITRATE_DEFAULT_PEAK	(BITRATE_DEFAULT * 2)
#define BITRATE_STEP		100
#define SLICE_BYTE_SIZE_MAX	1024
#define SLICE_BYTE_SIZE_MIN	1024
#define SLICE_MB_SIZE_MAX	300
#define INTRA_REFRESH_MBS_MAX	300
#define AT_SLICE_BOUNDARY	\
	V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY

static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct venus_inst *inst = ctrl_to_inst(ctrl);
	struct venc_controls *ctr = &inst->controls.enc;

	switch (ctrl->id) {
	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
		ctr->bitrate_mode = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_BITRATE:
		ctr->bitrate = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
		ctr->bitrate_peak = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE:
		ctr->h264_entropy_mode = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
		ctr->profile.mpeg4 = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
		ctr->profile.h264 = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_VPX_PROFILE:
		ctr->profile.vpx = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
		ctr->level.mpeg4 = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
		ctr->level.h264 = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
		ctr->h264_i_qp = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
		ctr->h264_p_qp = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP:
		ctr->h264_b_qp = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
		ctr->h264_min_qp = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
		ctr->h264_max_qp = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
		ctr->multi_slice_mode = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
		ctr->multi_slice_max_bytes = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
		ctr->multi_slice_max_mb = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
		ctr->h264_loop_filter_alpha = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
		ctr->h264_loop_filter_beta = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
		ctr->h264_loop_filter_mode = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
		ctr->header_mode = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
		break;
	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
		ctr->gop_size = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD:
		ctr->h264_i_period = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_VPX_MIN_QP:
		ctr->vp8_min_qp = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_VPX_MAX_QP:
		ctr->vp8_max_qp = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_B_FRAMES:
		ctr->num_b_frames = ctrl->val;
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static const struct v4l2_ctrl_ops venc_ctrl_ops = {
	.s_ctrl = venc_op_s_ctrl,
};

int venc_ctrl_init(struct venus_inst *inst)
{
	int ret;

	ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 27);
	if (ret)
		return ret;

	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
		V4L2_MPEG_VIDEO_BITRATE_MODE_CBR,
		~((1 << V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) |
		  (1 << V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)),
		V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);

	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE,
		V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC,
		0, V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC);

	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
		V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY,
		~((1 << V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE) |
		  (1 << V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE)),
		V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE);

	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
		V4L2_MPEG_VIDEO_MPEG4_LEVEL_5,
		0, V4L2_MPEG_VIDEO_MPEG4_LEVEL_0);

	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_PROFILE,
		V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH,
		~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
		  (1 << V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE) |
		  (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
		  (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH) |
		  (1 << V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH) |
		  (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH)),
		V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);

	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_LEVEL,
		V4L2_MPEG_VIDEO_H264_LEVEL_5_1,
		0, V4L2_MPEG_VIDEO_H264_LEVEL_1_0);

	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
		AT_SLICE_BOUNDARY,
		0, V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED);

	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_HEADER_MODE,
		V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
		1 << V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
		V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE);

	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
		V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES,
		0, V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_BITRATE, BITRATE_MIN, BITRATE_MAX,
		BITRATE_STEP, BITRATE_DEFAULT);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_BITRATE_PEAK, BITRATE_MIN, BITRATE_MAX,
		BITRATE_STEP, BITRATE_DEFAULT_PEAK);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_VPX_PROFILE, 0, 3, 1, 0);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 1, 51, 1, 26);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 1, 51, 1, 28);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP, 1, 51, 1, 30);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 1, 51, 1, 1);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 1, 51, 1, 51);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, SLICE_BYTE_SIZE_MIN,
		SLICE_BYTE_SIZE_MAX, 1, SLICE_BYTE_SIZE_MIN);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1,
		SLICE_MB_SIZE_MAX, 1, 1);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, -6, 6, 1, 0);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, -6, 6, 1, 0);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB,
		0, INTRA_REFRESH_MBS_MAX, 1, 0);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, (1 << 16) - 1, 1, 12);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_VPX_MIN_QP, 1, 128, 1, 1);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_VPX_MAX_QP, 1, 128, 1, 128);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_B_FRAMES, 0, 4, 1, 0);

	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
		V4L2_CID_MPEG_VIDEO_H264_I_PERIOD, 0, (1 << 16) - 1, 1, 0);

	ret = inst->ctrl_handler.error;
	if (ret)
		goto err;

	ret = v4l2_ctrl_handler_setup(&inst->ctrl_handler);
	if (ret)
		goto err;

	return 0;
err:
	v4l2_ctrl_handler_free(&inst->ctrl_handler);
	return ret;
}

void venc_ctrl_deinit(struct venus_inst *inst)
{
	v4l2_ctrl_handler_free(&inst->ctrl_handler);
}