FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/vaapi_encode_vp9.c
Date: 2021-09-24 20:55:06
Exec Total Coverage
Lines: 0 109 0.0%
Branches: 0 42 0.0%

Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include <va/va.h>
20 #include <va/va_enc_vp9.h>
21
22 #include "libavutil/avassert.h"
23 #include "libavutil/common.h"
24 #include "libavutil/internal.h"
25 #include "libavutil/opt.h"
26 #include "libavutil/pixfmt.h"
27
28 #include "avcodec.h"
29 #include "internal.h"
30 #include "vaapi_encode.h"
31
32 #define VP9_MAX_QUANT 255
33
34
35 typedef struct VAAPIEncodeVP9Picture {
36 int slot;
37 } VAAPIEncodeVP9Picture;
38
39 typedef struct VAAPIEncodeVP9Context {
40 VAAPIEncodeContext common;
41
42 // User options.
43 int loop_filter_level;
44 int loop_filter_sharpness;
45
46 // Derived settings.
47 int q_idx_idr;
48 int q_idx_p;
49 int q_idx_b;
50 } VAAPIEncodeVP9Context;
51
52
53 static int vaapi_encode_vp9_init_sequence_params(AVCodecContext *avctx)
54 {
55 VAAPIEncodeContext *ctx = avctx->priv_data;
56 VAEncSequenceParameterBufferVP9 *vseq = ctx->codec_sequence_params;
57 VAEncPictureParameterBufferVP9 *vpic = ctx->codec_picture_params;
58
59 vseq->max_frame_width = avctx->width;
60 vseq->max_frame_height = avctx->height;
61
62 vseq->kf_auto = 0;
63
64 if (!(ctx->va_rc_mode & VA_RC_CQP)) {
65 vseq->bits_per_second = ctx->va_bit_rate;
66 vseq->intra_period = ctx->gop_size;
67 }
68
69 vpic->frame_width_src = avctx->width;
70 vpic->frame_height_src = avctx->height;
71 vpic->frame_width_dst = avctx->width;
72 vpic->frame_height_dst = avctx->height;
73
74 return 0;
75 }
76
77 static int vaapi_encode_vp9_init_picture_params(AVCodecContext *avctx,
78 VAAPIEncodePicture *pic)
79 {
80 VAAPIEncodeContext *ctx = avctx->priv_data;
81 VAAPIEncodeVP9Context *priv = avctx->priv_data;
82 VAAPIEncodeVP9Picture *hpic = pic->priv_data;
83 VAEncPictureParameterBufferVP9 *vpic = pic->codec_picture_params;
84 int i;
85
86 vpic->reconstructed_frame = pic->recon_surface;
87 vpic->coded_buf = pic->output_buffer;
88
89 switch (pic->type) {
90 case PICTURE_TYPE_IDR:
91 av_assert0(pic->nb_refs == 0);
92 vpic->ref_flags.bits.force_kf = 1;
93 vpic->refresh_frame_flags = 0xff;
94 hpic->slot = 0;
95 break;
96 case PICTURE_TYPE_P:
97 av_assert0(pic->nb_refs == 1);
98 {
99 VAAPIEncodeVP9Picture *href = pic->refs[0]->priv_data;
100 av_assert0(href->slot == 0 || href->slot == 1);
101
102 if (ctx->max_b_depth > 0) {
103 hpic->slot = !href->slot;
104 vpic->refresh_frame_flags = 1 << hpic->slot | 0xfc;
105 } else {
106 hpic->slot = 0;
107 vpic->refresh_frame_flags = 0xff;
108 }
109 vpic->ref_flags.bits.ref_frame_ctrl_l0 = 1;
110 vpic->ref_flags.bits.ref_last_idx = href->slot;
111 vpic->ref_flags.bits.ref_last_sign_bias = 1;
112 }
113 break;
114 case PICTURE_TYPE_B:
115 av_assert0(pic->nb_refs == 2);
116 {
117 VAAPIEncodeVP9Picture *href0 = pic->refs[0]->priv_data,
118 *href1 = pic->refs[1]->priv_data;
119 av_assert0(href0->slot < pic->b_depth + 1 &&
120 href1->slot < pic->b_depth + 1);
121
122 if (pic->b_depth == ctx->max_b_depth) {
123 // Unreferenced frame.
124 vpic->refresh_frame_flags = 0x00;
125 hpic->slot = 8;
126 } else {
127 vpic->refresh_frame_flags = 0xfe << pic->b_depth & 0xff;
128 hpic->slot = 1 + pic->b_depth;
129 }
130 vpic->ref_flags.bits.ref_frame_ctrl_l0 = 1;
131 vpic->ref_flags.bits.ref_frame_ctrl_l1 = 2;
132 vpic->ref_flags.bits.ref_last_idx = href0->slot;
133 vpic->ref_flags.bits.ref_last_sign_bias = 1;
134 vpic->ref_flags.bits.ref_gf_idx = href1->slot;
135 vpic->ref_flags.bits.ref_gf_sign_bias = 0;
136 }
137 break;
138 default:
139 av_assert0(0 && "invalid picture type");
140 }
141 if (vpic->refresh_frame_flags == 0x00) {
142 av_log(avctx, AV_LOG_DEBUG, "Pic %"PRId64" not stored.\n",
143 pic->display_order);
144 } else {
145 av_log(avctx, AV_LOG_DEBUG, "Pic %"PRId64" stored in slot %d.\n",
146 pic->display_order, hpic->slot);
147 }
148
149 for (i = 0; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++)
150 vpic->reference_frames[i] = VA_INVALID_SURFACE;
151
152 for (i = 0; i < pic->nb_refs; i++) {
153 VAAPIEncodePicture *ref_pic = pic->refs[i];
154 int slot;
155 slot = ((VAAPIEncodeVP9Picture*)ref_pic->priv_data)->slot;
156 av_assert0(vpic->reference_frames[slot] == VA_INVALID_SURFACE);
157 vpic->reference_frames[slot] = ref_pic->recon_surface;
158 }
159
160 vpic->pic_flags.bits.frame_type = (pic->type != PICTURE_TYPE_IDR);
161 vpic->pic_flags.bits.show_frame = pic->display_order <= pic->encode_order;
162
163 if (pic->type == PICTURE_TYPE_IDR)
164 vpic->luma_ac_qindex = priv->q_idx_idr;
165 else if (pic->type == PICTURE_TYPE_P)
166 vpic->luma_ac_qindex = priv->q_idx_p;
167 else
168 vpic->luma_ac_qindex = priv->q_idx_b;
169 vpic->luma_dc_qindex_delta = 0;
170 vpic->chroma_ac_qindex_delta = 0;
171 vpic->chroma_dc_qindex_delta = 0;
172
173 vpic->filter_level = priv->loop_filter_level;
174 vpic->sharpness_level = priv->loop_filter_sharpness;
175
176 return 0;
177 }
178
179 static av_cold int vaapi_encode_vp9_configure(AVCodecContext *avctx)
180 {
181 VAAPIEncodeContext *ctx = avctx->priv_data;
182 VAAPIEncodeVP9Context *priv = avctx->priv_data;
183
184 if (ctx->rc_mode->quality) {
185 priv->q_idx_p = av_clip(ctx->rc_quality, 0, VP9_MAX_QUANT);
186 if (avctx->i_quant_factor > 0.0)
187 priv->q_idx_idr =
188 av_clip((avctx->i_quant_factor * priv->q_idx_p +
189 avctx->i_quant_offset) + 0.5,
190 0, VP9_MAX_QUANT);
191 else
192 priv->q_idx_idr = priv->q_idx_p;
193 if (avctx->b_quant_factor > 0.0)
194 priv->q_idx_b =
195 av_clip((avctx->b_quant_factor * priv->q_idx_p +
196 avctx->b_quant_offset) + 0.5,
197 0, VP9_MAX_QUANT);
198 else
199 priv->q_idx_b = priv->q_idx_p;
200 } else {
201 // Arbitrary value.
202 priv->q_idx_idr = priv->q_idx_p = priv->q_idx_b = 100;
203 }
204
205 ctx->roi_quant_range = VP9_MAX_QUANT;
206
207 return 0;
208 }
209
210 static const VAAPIEncodeProfile vaapi_encode_vp9_profiles[] = {
211 { FF_PROFILE_VP9_0, 8, 3, 1, 1, VAProfileVP9Profile0 },
212 { FF_PROFILE_VP9_2, 10, 3, 1, 1, VAProfileVP9Profile2 },
213 { FF_PROFILE_UNKNOWN }
214 };
215
216 static const VAAPIEncodeType vaapi_encode_type_vp9 = {
217 .profiles = vaapi_encode_vp9_profiles,
218
219 .flags = FLAG_B_PICTURES |
220 FLAG_B_PICTURE_REFERENCES,
221
222 .default_quality = 100,
223
224 .picture_priv_data_size = sizeof(VAAPIEncodeVP9Picture),
225
226 .configure = &vaapi_encode_vp9_configure,
227
228 .sequence_params_size = sizeof(VAEncSequenceParameterBufferVP9),
229 .init_sequence_params = &vaapi_encode_vp9_init_sequence_params,
230
231 .picture_params_size = sizeof(VAEncPictureParameterBufferVP9),
232 .init_picture_params = &vaapi_encode_vp9_init_picture_params,
233 };
234
235 static av_cold int vaapi_encode_vp9_init(AVCodecContext *avctx)
236 {
237 VAAPIEncodeContext *ctx = avctx->priv_data;
238
239 ctx->codec = &vaapi_encode_type_vp9;
240
241 // No packed headers are currently desired. They could be written,
242 // but there isn't any reason to do so - the one usable driver (i965)
243 // can write its own headers and there is no metadata to include.
244 ctx->desired_packed_headers = 0;
245
246 // Surfaces must be aligned to superblock boundaries.
247 ctx->surface_width = FFALIGN(avctx->width, 64);
248 ctx->surface_height = FFALIGN(avctx->height, 64);
249
250 return ff_vaapi_encode_init(avctx);
251 }
252
253 #define OFFSET(x) offsetof(VAAPIEncodeVP9Context, x)
254 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
255 static const AVOption vaapi_encode_vp9_options[] = {
256 VAAPI_ENCODE_COMMON_OPTIONS,
257 VAAPI_ENCODE_RC_OPTIONS,
258
259 { "loop_filter_level", "Loop filter level",
260 OFFSET(loop_filter_level), AV_OPT_TYPE_INT, { .i64 = 16 }, 0, 63, FLAGS },
261 { "loop_filter_sharpness", "Loop filter sharpness",
262 OFFSET(loop_filter_sharpness), AV_OPT_TYPE_INT, { .i64 = 4 }, 0, 15, FLAGS },
263 { NULL },
264 };
265
266 static const AVCodecDefault vaapi_encode_vp9_defaults[] = {
267 { "b", "0" },
268 { "bf", "0" },
269 { "g", "250" },
270 { "qmin", "-1" },
271 { "qmax", "-1" },
272 { NULL },
273 };
274
275 static const AVClass vaapi_encode_vp9_class = {
276 .class_name = "vp9_vaapi",
277 .item_name = av_default_item_name,
278 .option = vaapi_encode_vp9_options,
279 .version = LIBAVUTIL_VERSION_INT,
280 };
281
282 const AVCodec ff_vp9_vaapi_encoder = {
283 .name = "vp9_vaapi",
284 .long_name = NULL_IF_CONFIG_SMALL("VP9 (VAAPI)"),
285 .type = AVMEDIA_TYPE_VIDEO,
286 .id = AV_CODEC_ID_VP9,
287 .priv_data_size = sizeof(VAAPIEncodeVP9Context),
288 .init = &vaapi_encode_vp9_init,
289 .receive_packet = &ff_vaapi_encode_receive_packet,
290 .close = &ff_vaapi_encode_close,
291 .priv_class = &vaapi_encode_vp9_class,
292 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE |
293 AV_CODEC_CAP_DR1,
294 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
295 .defaults = vaapi_encode_vp9_defaults,
296 .pix_fmts = (const enum AVPixelFormat[]) {
297 AV_PIX_FMT_VAAPI,
298 AV_PIX_FMT_NONE,
299 },
300 .hw_configs = ff_vaapi_encode_hw_configs,
301 .wrapper_name = "vaapi",
302 };
303