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
|
/*
* Intel MediaSDK QSV based HEVC encoder
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include <sys/types.h>
#include <mfx/mfxvideo.h>
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"
#include "hevc.h"
#include "hevcdec.h"
#include "h2645_parse.h"
#include "internal.h"
#include "qsv.h"
#include "qsv_internal.h"
#include "qsvenc.h"
enum LoadPlugin {
LOAD_PLUGIN_NONE,
LOAD_PLUGIN_HEVC_SW,
LOAD_PLUGIN_HEVC_HW,
};
typedef struct QSVHEVCEncContext {
AVClass *class;
QSVEncContext qsv;
int load_plugin;
} QSVHEVCEncContext;
static int generate_fake_vps(QSVEncContext *q, AVCodecContext *avctx)
{
GetByteContext gbc;
PutByteContext pbc;
GetBitContext gb;
H2645NAL sps_nal = { NULL };
HEVCSPS sps = { 0 };
HEVCVPS vps = { 0 };
uint8_t vps_buf[128], vps_rbsp_buf[128];
uint8_t *new_extradata;
unsigned int sps_id;
int ret, i, type, vps_size;
if (!avctx->extradata_size) {
av_log(avctx, AV_LOG_ERROR, "No extradata returned from libmfx\n");
return AVERROR_UNKNOWN;
}
/* parse the SPS */
ret = ff_h2645_extract_rbsp(avctx->extradata + 4, avctx->extradata_size - 4, &sps_nal);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error unescaping the SPS buffer\n");
return ret;
}
ret = init_get_bits8(&gb, sps_nal.data, sps_nal.size);
if (ret < 0) {
av_freep(&sps_nal.rbsp_buffer);
return ret;
}
get_bits(&gb, 1);
type = get_bits(&gb, 6);
if (type != HEVC_NAL_SPS) {
av_log(avctx, AV_LOG_ERROR, "Unexpected NAL type in the extradata: %d\n",
type);
av_freep(&sps_nal.rbsp_buffer);
return AVERROR_INVALIDDATA;
}
get_bits(&gb, 9);
ret = ff_hevc_parse_sps(&sps, &gb, &sps_id, 0, NULL, avctx);
av_freep(&sps_nal.rbsp_buffer);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error parsing the SPS\n");
return ret;
}
/* generate the VPS */
vps.vps_max_layers = 1;
vps.vps_max_sub_layers = sps.max_sub_layers;
memcpy(&vps.ptl, &sps.ptl, sizeof(vps.ptl));
vps.vps_sub_layer_ordering_info_present_flag = 1;
for (i = 0; i < HEVC_MAX_SUB_LAYERS; i++) {
vps.vps_max_dec_pic_buffering[i] = sps.temporal_layer[i].max_dec_pic_buffering;
vps.vps_num_reorder_pics[i] = sps.temporal_layer[i].num_reorder_pics;
vps.vps_max_latency_increase[i] = sps.temporal_layer[i].max_latency_increase;
}
vps.vps_num_layer_sets = 1;
vps.vps_timing_info_present_flag = sps.vui.vui_timing_info_present_flag;
vps.vps_num_units_in_tick = sps.vui.vui_num_units_in_tick;
vps.vps_time_scale = sps.vui.vui_time_scale;
vps.vps_poc_proportional_to_timing_flag = sps.vui.vui_poc_proportional_to_timing_flag;
vps.vps_num_ticks_poc_diff_one = sps.vui.vui_num_ticks_poc_diff_one_minus1 + 1;
/* generate the encoded RBSP form of the VPS */
ret = ff_hevc_encode_nal_vps(&vps, sps.vps_id, vps_rbsp_buf, sizeof(vps_rbsp_buf));
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error writing the VPS\n");
return ret;
}
/* escape and add the startcode */
bytestream2_init(&gbc, vps_rbsp_buf, ret);
bytestream2_init_writer(&pbc, vps_buf, sizeof(vps_buf));
bytestream2_put_be32(&pbc, 1); // startcode
bytestream2_put_byte(&pbc, HEVC_NAL_VPS << 1); // NAL
bytestream2_put_byte(&pbc, 1); // header
while (bytestream2_get_bytes_left(&gbc)) {
uint32_t b = bytestream2_peek_be24(&gbc);
if (b <= 3) {
bytestream2_put_be24(&pbc, 3);
bytestream2_skip(&gbc, 2);
} else
bytestream2_put_byte(&pbc, bytestream2_get_byte(&gbc));
}
vps_size = bytestream2_tell_p(&pbc);
new_extradata = av_mallocz(vps_size + avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!new_extradata)
return AVERROR(ENOMEM);
memcpy(new_extradata, vps_buf, vps_size);
memcpy(new_extradata + vps_size, avctx->extradata, avctx->extradata_size);
av_freep(&avctx->extradata);
avctx->extradata = new_extradata;
avctx->extradata_size += vps_size;
return 0;
}
static av_cold int qsv_enc_init(AVCodecContext *avctx)
{
QSVHEVCEncContext *q = avctx->priv_data;
int ret;
if (q->load_plugin != LOAD_PLUGIN_NONE) {
static const char * const uid_hevcenc_sw = "2fca99749fdb49aeb121a5b63ef568f7";
static const char * const uid_hevcenc_hw = "6fadc791a0c2eb479ab6dcd5ea9da347";
if (q->qsv.load_plugins[0]) {
av_log(avctx, AV_LOG_WARNING,
"load_plugins is not empty, but load_plugin is not set to 'none'."
"The load_plugin value will be ignored.\n");
} else {
av_freep(&q->qsv.load_plugins);
if (q->load_plugin == LOAD_PLUGIN_HEVC_SW)
q->qsv.load_plugins = av_strdup(uid_hevcenc_sw);
else
q->qsv.load_plugins = av_strdup(uid_hevcenc_hw);
if (!q->qsv.load_plugins)
return AVERROR(ENOMEM);
}
}
ret = ff_qsv_enc_init(avctx, &q->qsv);
if (ret < 0)
return ret;
ret = generate_fake_vps(&q->qsv, avctx);
if (ret < 0) {
ff_qsv_enc_close(avctx, &q->qsv);
return ret;
}
return 0;
}
static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *frame, int *got_packet)
{
QSVHEVCEncContext *q = avctx->priv_data;
return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet);
}
static av_cold int qsv_enc_close(AVCodecContext *avctx)
{
QSVHEVCEncContext *q = avctx->priv_data;
return ff_qsv_enc_close(avctx, &q->qsv);
}
#if defined(_WIN32)
#define LOAD_PLUGIN_DEFAULT LOAD_PLUGIN_HEVC_SW
#else
#define LOAD_PLUGIN_DEFAULT LOAD_PLUGIN_HEVC_HW
#endif
#define OFFSET(x) offsetof(QSVHEVCEncContext, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
QSV_COMMON_OPTS
{ "load_plugin", "A user plugin to load in an internal session", OFFSET(load_plugin), AV_OPT_TYPE_INT, { .i64 = LOAD_PLUGIN_DEFAULT }, LOAD_PLUGIN_NONE, LOAD_PLUGIN_HEVC_HW, VE, "load_plugin" },
{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_NONE }, 0, 0, VE, "load_plugin" },
{ "hevc_sw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_SW }, 0, 0, VE, "load_plugin" },
{ "hevc_hw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_HW }, 0, 0, VE, "load_plugin" },
{ "load_plugins", "A :-separate list of hexadecimal plugin UIDs to load in an internal session",
OFFSET(qsv.load_plugins), AV_OPT_TYPE_STRING, { .str = "" }, 0, 0, VE },
{ "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" },
{ "unknown", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" },
{ "main", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAIN }, INT_MIN, INT_MAX, VE, "profile" },
{ "main10", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAIN10 }, INT_MIN, INT_MAX, VE, "profile" },
{ "mainsp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAINSP }, INT_MIN, INT_MAX, VE, "profile" },
{ NULL },
};
static const AVClass class = {
.class_name = "hevc_qsv encoder",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
static const AVCodecDefault qsv_enc_defaults[] = {
{ "b", "1M" },
{ "refs", "0" },
// same as the x264 default
{ "g", "248" },
{ "bf", "8" },
{ "flags", "+cgop" },
#if FF_API_PRIVATE_OPT
{ "b_strategy", "-1" },
#endif
{ NULL },
};
AVCodec ff_hevc_qsv_encoder = {
.name = "hevc_qsv",
.long_name = NULL_IF_CONFIG_SMALL("HEVC (Intel Quick Sync Video acceleration)"),
.priv_data_size = sizeof(QSVHEVCEncContext),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_HEVC,
.init = qsv_enc_init,
.encode2 = qsv_enc_frame,
.close = qsv_enc_close,
.capabilities = AV_CODEC_CAP_DELAY,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
AV_PIX_FMT_P010,
AV_PIX_FMT_QSV,
AV_PIX_FMT_NONE },
.priv_class = &class,
.defaults = qsv_enc_defaults,
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
};
|
