2 * This file is part of Libav.
4 * Libav 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.
9 * Libav 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.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <va/va_enc_vp8.h>
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"
30 #include "vaapi_encode.h"
33 typedef struct VAAPIEncodeVP8Context {
36 } VAAPIEncodeVP8Context;
38 typedef struct VAAPIEncodeVP8Options {
39 int loop_filter_level;
40 int loop_filter_sharpness;
41 } VAAPIEncodeVP8Options;
44 #define vseq_var(name) vseq->name, name
45 #define vseq_field(name) vseq->seq_fields.bits.name, name
46 #define vpic_var(name) vpic->name, name
47 #define vpic_field(name) vpic->pic_fields.bits.name, name
50 static int vaapi_encode_vp8_init_sequence_params(AVCodecContext *avctx)
52 VAAPIEncodeContext *ctx = avctx->priv_data;
53 VAEncSequenceParameterBufferVP8 *vseq = ctx->codec_sequence_params;
55 vseq->frame_width = avctx->width;
56 vseq->frame_height = avctx->height;
58 vseq->frame_width_scale = 0;
59 vseq->frame_height_scale = 0;
61 vseq->error_resilient = 0;
64 if (!(ctx->va_rc_mode & VA_RC_CQP)) {
65 vseq->bits_per_second = avctx->bit_rate;
66 vseq->intra_period = avctx->gop_size;
72 static int vaapi_encode_vp8_init_picture_params(AVCodecContext *avctx,
73 VAAPIEncodePicture *pic)
75 VAAPIEncodeContext *ctx = avctx->priv_data;
76 VAEncPictureParameterBufferVP8 *vpic = pic->codec_picture_params;
77 VAAPIEncodeVP8Options *opt = ctx->codec_options;
80 vpic->reconstructed_frame = pic->recon_surface;
82 vpic->coded_buf = pic->output_buffer;
85 case PICTURE_TYPE_IDR:
87 av_assert0(pic->nb_refs == 0);
88 vpic->ref_flags.bits.force_kf = 1;
89 vpic->ref_last_frame =
95 av_assert0(pic->nb_refs == 1);
96 vpic->ref_flags.bits.no_ref_last = 0;
97 vpic->ref_flags.bits.no_ref_gf = 1;
98 vpic->ref_flags.bits.no_ref_arf = 1;
99 vpic->ref_last_frame =
101 vpic->ref_arf_frame =
102 pic->refs[0]->recon_surface;
105 av_assert0(0 && "invalid picture type");
108 vpic->pic_flags.bits.frame_type = (pic->type != PICTURE_TYPE_IDR);
109 vpic->pic_flags.bits.show_frame = 1;
111 vpic->pic_flags.bits.refresh_last = 1;
112 vpic->pic_flags.bits.refresh_golden_frame = 1;
113 vpic->pic_flags.bits.refresh_alternate_frame = 1;
115 vpic->pic_flags.bits.version = 0;
116 vpic->pic_flags.bits.loop_filter_type = 0;
117 for (i = 0; i < 4; i++)
118 vpic->loop_filter_level[i] = opt->loop_filter_level;
119 vpic->sharpness_level = opt->loop_filter_sharpness;
121 vpic->clamp_qindex_low = 0;
122 vpic->clamp_qindex_high = 127;
127 static int vaapi_encode_vp8_write_quant_table(AVCodecContext *avctx,
128 VAAPIEncodePicture *pic,
129 int index, int *type,
130 char *data, size_t *data_len)
132 VAAPIEncodeContext *ctx = avctx->priv_data;
133 VAAPIEncodeVP8Context *priv = ctx->priv_data;
134 VAQMatrixBufferVP8 quant;
140 if (*data_len < sizeof(quant))
141 return AVERROR(EINVAL);
142 *type = VAQMatrixBufferType;
143 *data_len = sizeof(quant);
145 if (pic->type == PICTURE_TYPE_P)
150 for (i = 0; i < 4; i++)
151 quant.quantization_index[i] = q;
152 for (i = 0; i < 5; i++)
153 quant.quantization_index_delta[i] = 0;
155 memcpy(data, &quant, sizeof(quant));
159 static av_cold int vaapi_encode_vp8_configure(AVCodecContext *avctx)
161 VAAPIEncodeContext *ctx = avctx->priv_data;
162 VAAPIEncodeVP8Context *priv = ctx->priv_data;
164 priv->q_index_p = av_clip(avctx->global_quality, 0, 127);
165 if (avctx->i_quant_factor > 0.0)
166 priv->q_index_i = av_clip((avctx->global_quality *
167 avctx->i_quant_factor +
168 avctx->i_quant_offset) + 0.5,
171 priv->q_index_i = priv->q_index_p;
176 static const VAAPIEncodeType vaapi_encode_type_vp8 = {
177 .configure = &vaapi_encode_vp8_configure,
179 .priv_data_size = sizeof(VAAPIEncodeVP8Context),
181 .sequence_params_size = sizeof(VAEncSequenceParameterBufferVP8),
182 .init_sequence_params = &vaapi_encode_vp8_init_sequence_params,
184 .picture_params_size = sizeof(VAEncPictureParameterBufferVP8),
185 .init_picture_params = &vaapi_encode_vp8_init_picture_params,
187 .write_extra_buffer = &vaapi_encode_vp8_write_quant_table,
190 static av_cold int vaapi_encode_vp8_init(AVCodecContext *avctx)
192 VAAPIEncodeContext *ctx = avctx->priv_data;
194 if (avctx->max_b_frames > 0) {
195 av_log(avctx, AV_LOG_ERROR, "B-frames are not supported.\n");
196 return AVERROR_PATCHWELCOME;
199 ctx->codec = &vaapi_encode_type_vp8;
201 ctx->va_profile = VAProfileVP8Version0_3;
202 ctx->va_entrypoint = VAEntrypointEncSlice;
203 ctx->va_rt_format = VA_RT_FORMAT_YUV420;
205 if (avctx->flags & AV_CODEC_FLAG_QSCALE) {
206 ctx->va_rc_mode = VA_RC_CQP;
207 } else if (avctx->bit_rate > 0) {
208 if (avctx->rc_max_rate == avctx->bit_rate)
209 ctx->va_rc_mode = VA_RC_CBR;
211 ctx->va_rc_mode = VA_RC_VBR;
213 ctx->va_rc_mode = VA_RC_CQP;
216 // Packed headers are not currently supported.
217 ctx->va_packed_headers = 0;
219 ctx->surface_width = FFALIGN(avctx->width, 16);
220 ctx->surface_height = FFALIGN(avctx->height, 16);
222 return ff_vaapi_encode_init(avctx);
225 #define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \
226 offsetof(VAAPIEncodeVP8Options, x))
227 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
228 static const AVOption vaapi_encode_vp8_options[] = {
229 { "loop_filter_level", "Loop filter level",
230 OFFSET(loop_filter_level), AV_OPT_TYPE_INT, { .i64 = 16 }, 0, 63, FLAGS },
231 { "loop_filter_sharpness", "Loop filter sharpness",
232 OFFSET(loop_filter_sharpness), AV_OPT_TYPE_INT, { .i64 = 4 }, 0, 15, FLAGS },
236 static const AVCodecDefault vaapi_encode_vp8_defaults[] = {
240 { "global_quality", "40" },
244 static const AVClass vaapi_encode_vp8_class = {
245 .class_name = "vp8_vaapi",
246 .item_name = av_default_item_name,
247 .option = vaapi_encode_vp8_options,
248 .version = LIBAVUTIL_VERSION_INT,
251 AVCodec ff_vp8_vaapi_encoder = {
253 .long_name = NULL_IF_CONFIG_SMALL("VP8 (VAAPI)"),
254 .type = AVMEDIA_TYPE_VIDEO,
255 .id = AV_CODEC_ID_VP8,
256 .priv_data_size = (sizeof(VAAPIEncodeContext) +
257 sizeof(VAAPIEncodeVP8Options)),
258 .init = &vaapi_encode_vp8_init,
259 .encode2 = &ff_vaapi_encode2,
260 .close = &ff_vaapi_encode_close,
261 .priv_class = &vaapi_encode_vp8_class,
262 .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
263 .defaults = vaapi_encode_vp8_defaults,
264 .pix_fmts = (const enum AVPixelFormat[]) {
268 .wrapper_name = "vaapi",