1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
|
/*
* 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, 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);
}
|
