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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_calc_bpframes(u32 gop_size, u32 conseq_b, u32 *bf, u32 *pf)
{
u32 half = (gop_size - 1) >> 1;
u32 b, p, ratio;
bool found = false;
if (!gop_size)
return -EINVAL;
*bf = *pf = 0;
if (!conseq_b) {
*pf = gop_size - 1;
return 0;
}
b = p = half;
for (; b <= gop_size - 1; b++, p--) {
if (b % p)
continue;
ratio = b / p;
if (ratio == conseq_b) {
found = true;
break;
}
if (ratio > conseq_b)
break;
}
if (!found)
return -EINVAL;
if (b + p + 1 != gop_size)
return -EINVAL;
*bf = b;
*pf = p;
return 0;
}
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;
u32 bframes;
int ret;
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_VP8_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:
ret = venc_calc_bpframes(ctrl->val, ctr->num_b_frames, &bframes,
&ctr->num_p_frames);
if (ret)
return ret;
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:
ret = venc_calc_bpframes(ctr->gop_size, ctrl->val, &bframes,
&ctr->num_p_frames);
if (ret)
return ret;
ctr->num_b_frames = bframes;
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_menu(&inst->ctrl_handler, &venc_ctrl_ops,
V4L2_CID_MPEG_VIDEO_VP8_PROFILE,
V4L2_MPEG_VIDEO_VP8_PROFILE_3,
0, V4L2_MPEG_VIDEO_VP8_PROFILE_0);
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_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, 30);
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);
}
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