FFmpeg
amfenc_hevc.c
Go to the documentation of this file.
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 "libavutil/internal.h"
20 #include "libavutil/opt.h"
21 #include "amfenc.h"
22 #include "codec_internal.h"
23 #include "internal.h"
24 
25 #define OFFSET(x) offsetof(AmfContext, x)
26 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
27 static const AVOption options[] = {
28  { "usage", "Set the encoding usage", OFFSET(usage), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_TRANSCONDING }, AMF_VIDEO_ENCODER_HEVC_USAGE_TRANSCONDING, AMF_VIDEO_ENCODER_HEVC_USAGE_WEBCAM, VE, "usage" },
29  { "transcoding", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_TRANSCONDING }, 0, 0, VE, "usage" },
30  { "ultralowlatency","", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_ULTRA_LOW_LATENCY }, 0, 0, VE, "usage" },
31  { "lowlatency", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_LOW_LATENCY }, 0, 0, VE, "usage" },
32  { "webcam", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_WEBCAM }, 0, 0, VE, "usage" },
33 
34  { "profile", "Set the profile (default main)", OFFSET(profile), AV_OPT_TYPE_INT,{ .i64 = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN }, AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN, AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN, VE, "profile" },
35  { "main", "", 0, AV_OPT_TYPE_CONST,{ .i64 = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN }, 0, 0, VE, "profile" },
36 
37  { "profile_tier", "Set the profile tier (default main)", OFFSET(tier), AV_OPT_TYPE_INT,{ .i64 = AMF_VIDEO_ENCODER_HEVC_TIER_MAIN }, AMF_VIDEO_ENCODER_HEVC_TIER_MAIN, AMF_VIDEO_ENCODER_HEVC_TIER_HIGH, VE, "tier" },
38  { "main", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_TIER_MAIN }, 0, 0, VE, "tier" },
39  { "high", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_TIER_HIGH }, 0, 0, VE, "tier" },
40 
41  { "level", "Set the encoding level (default auto)", OFFSET(level), AV_OPT_TYPE_INT,{ .i64 = 0 }, 0, AMF_LEVEL_6_2, VE, "level" },
42  { "auto", "", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, VE, "level" },
43  { "1.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_1 }, 0, 0, VE, "level" },
44  { "2.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_2 }, 0, 0, VE, "level" },
45  { "2.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_2_1 }, 0, 0, VE, "level" },
46  { "3.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_3 }, 0, 0, VE, "level" },
47  { "3.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_3_1 }, 0, 0, VE, "level" },
48  { "4.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_4 }, 0, 0, VE, "level" },
49  { "4.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_4_1 }, 0, 0, VE, "level" },
50  { "5.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_5 }, 0, 0, VE, "level" },
51  { "5.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_5_1 }, 0, 0, VE, "level" },
52  { "5.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_5_2 }, 0, 0, VE, "level" },
53  { "6.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_6 }, 0, 0, VE, "level" },
54  { "6.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_6_1 }, 0, 0, VE, "level" },
55  { "6.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_6_2 }, 0, 0, VE, "level" },
56 
57  { "quality", "Set the encoding quality", OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_SPEED }, AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_QUALITY, AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_SPEED, VE, "quality" },
58  { "balanced", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_BALANCED }, 0, 0, VE, "quality" },
59  { "speed", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_SPEED }, 0, 0, VE, "quality" },
60  { "quality", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_QUALITY }, 0, 0, VE, "quality" },
61 
62  { "rc", "Set the rate control mode", OFFSET(rate_control_mode), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_UNKNOWN }, AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_UNKNOWN, AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CBR, VE, "rc" },
63  { "cqp", "Constant Quantization Parameter", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CONSTANT_QP }, 0, 0, VE, "rc" },
64  { "cbr", "Constant Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CBR }, 0, 0, VE, "rc" },
65  { "vbr_peak", "Peak Contrained Variable Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR }, 0, 0, VE, "rc" },
66  { "vbr_latency", "Latency Constrained Variable Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_LATENCY_CONSTRAINED_VBR }, 0, 0, VE, "rc" },
67 
68  { "header_insertion_mode", "Set header insertion mode", OFFSET(header_insertion_mode), AV_OPT_TYPE_INT,{ .i64 = AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_NONE }, AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_NONE, AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_IDR_ALIGNED, VE, "hdrmode" },
69  { "none", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_NONE }, 0, 0, VE, "hdrmode" },
70  { "gop", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_GOP_ALIGNED }, 0, 0, VE, "hdrmode" },
71  { "idr", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_IDR_ALIGNED }, 0, 0, VE, "hdrmode" },
72 
73  { "gops_per_idr", "GOPs per IDR 0-no IDR will be inserted", OFFSET(gops_per_idr), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, VE },
74  { "preanalysis", "Enable preanalysis", OFFSET(preanalysis), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE},
75  { "vbaq", "Enable VBAQ", OFFSET(enable_vbaq), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE},
76  { "enforce_hrd", "Enforce HRD", OFFSET(enforce_hrd), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE},
77  { "filler_data", "Filler Data Enable", OFFSET(filler_data), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE},
78  { "max_au_size", "Maximum Access Unit Size for rate control (in bits)", OFFSET(max_au_size), AV_OPT_TYPE_INT,{ .i64 = 0 }, 0, INT_MAX, VE},
79  { "min_qp_i", "min quantization parameter for I-frame", OFFSET(min_qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
80  { "max_qp_i", "max quantization parameter for I-frame", OFFSET(max_qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
81  { "min_qp_p", "min quantization parameter for P-frame", OFFSET(min_qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
82  { "max_qp_p", "max quantization parameter for P-frame", OFFSET(max_qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
83  { "qp_p", "quantization parameter for P-frame", OFFSET(qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
84  { "qp_i", "quantization parameter for I-frame", OFFSET(qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
85  { "skip_frame", "Rate Control Based Frame Skip", OFFSET(skip_frame), AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, 1, VE },
86  { "me_half_pel", "Enable ME Half Pixel", OFFSET(me_half_pel), AV_OPT_TYPE_BOOL,{ .i64 = 1 }, 0, 1, VE },
87  { "me_quarter_pel", "Enable ME Quarter Pixel ", OFFSET(me_quarter_pel),AV_OPT_TYPE_BOOL,{ .i64 = 1 }, 0, 1, VE },
88 
89  { "aud", "Inserts AU Delimiter NAL unit", OFFSET(aud) ,AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, 1, VE },
90 
91  { "log_to_dbg", "Enable AMF logging to debug output", OFFSET(log_to_dbg), AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, 1, VE },
92  { NULL }
93 };
94 
95 static av_cold int amf_encode_init_hevc(AVCodecContext *avctx)
96 {
97  int ret = 0;
98  AMF_RESULT res = AMF_OK;
99  AmfContext *ctx = avctx->priv_data;
100  AMFVariantStruct var = {0};
101  amf_int64 profile = 0;
102  amf_int64 profile_level = 0;
103  AMFBuffer *buffer;
104  AMFGuid guid;
105  AMFRate framerate;
106  AMFSize framesize = AMFConstructSize(avctx->width, avctx->height);
107  int deblocking_filter = (avctx->flags & AV_CODEC_FLAG_LOOP_FILTER) ? 1 : 0;
108 
109  if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
110  framerate = AMFConstructRate(avctx->framerate.num, avctx->framerate.den);
111  } else {
112  framerate = AMFConstructRate(avctx->time_base.den, avctx->time_base.num * avctx->ticks_per_frame);
113  }
114 
115  if ((ret = ff_amf_encode_init(avctx)) < 0)
116  return ret;
117 
118  // init static parameters
119  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_USAGE, ctx->usage);
120 
121  AMF_ASSIGN_PROPERTY_SIZE(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_FRAMESIZE, framesize);
122 
123  AMF_ASSIGN_PROPERTY_RATE(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_FRAMERATE, framerate);
124 
125  switch (avctx->profile) {
126  case FF_PROFILE_HEVC_MAIN:
127  profile = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN;
128  break;
129  default:
130  break;
131  }
132  if (profile == 0) {
133  profile = ctx->profile;
134  }
135  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_PROFILE, profile);
136 
137  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_TIER, ctx->tier);
138 
139  profile_level = avctx->level;
140  if (profile_level == FF_LEVEL_UNKNOWN) {
141  profile_level = ctx->level;
142  }
143  if (profile_level != 0) {
144  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_PROFILE_LEVEL, profile_level);
145  }
146  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET, ctx->quality);
147  // Maximum Reference Frames
148  if (avctx->refs != -1) {
149  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_NUM_REFRAMES, avctx->refs);
150  }
151  // Aspect Ratio
152  if (avctx->sample_aspect_ratio.den && avctx->sample_aspect_ratio.num) {
153  AMFRatio ratio = AMFConstructRatio(avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
154  AMF_ASSIGN_PROPERTY_RATIO(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_ASPECT_RATIO, ratio);
155  }
156 
157  // Picture control properties
158  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_NUM_GOPS_PER_IDR, ctx->gops_per_idr);
159  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_GOP_SIZE, avctx->gop_size);
160  if (avctx->slices > 1) {
161  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_SLICES_PER_FRAME, avctx->slices);
162  }
163  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_DE_BLOCKING_FILTER_DISABLE, deblocking_filter);
164  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE, ctx->header_insertion_mode);
165 
166  // Rate control
167  // autodetect rate control method
168  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_UNKNOWN) {
169  if (ctx->min_qp_i != -1 || ctx->max_qp_i != -1 ||
170  ctx->min_qp_p != -1 || ctx->max_qp_p != -1 ||
171  ctx->qp_i !=-1 || ctx->qp_p != -1) {
172  ctx->rate_control_mode = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CONSTANT_QP;
173  av_log(ctx, AV_LOG_DEBUG, "Rate control turned to CQP\n");
174  } else if (avctx->rc_max_rate > 0) {
175  ctx->rate_control_mode = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR;
176  av_log(ctx, AV_LOG_DEBUG, "Rate control turned to Peak VBR\n");
177  } else {
178  ctx->rate_control_mode = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CBR;
179  av_log(ctx, AV_LOG_DEBUG, "Rate control turned to CBR\n");
180  }
181  }
182 
183 
184  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD, ctx->rate_control_mode);
185  if (avctx->rc_buffer_size) {
186  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_VBV_BUFFER_SIZE, avctx->rc_buffer_size);
187 
188  if (avctx->rc_initial_buffer_occupancy != 0) {
189  int amf_buffer_fullness = avctx->rc_initial_buffer_occupancy * 64 / avctx->rc_buffer_size;
190  if (amf_buffer_fullness > 64)
191  amf_buffer_fullness = 64;
192  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_INITIAL_VBV_BUFFER_FULLNESS, amf_buffer_fullness);
193  }
194  }
195  // Pre-Pass, Pre-Analysis, Two-Pass
196  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_PREANALYSIS_ENABLE, ctx->preanalysis);
197 
198  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CONSTANT_QP) {
199  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_ENABLE_VBAQ, false);
200  if (ctx->enable_vbaq)
201  av_log(ctx, AV_LOG_WARNING, "VBAQ is not supported by cqp Rate Control Method, automatically disabled\n");
202  } else {
203  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_ENABLE_VBAQ, !!ctx->enable_vbaq);
204  }
205  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MOTION_HALF_PIXEL, ctx->me_half_pel);
206  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MOTION_QUARTERPIXEL, ctx->me_quarter_pel);
207 
208  // init dynamic rate control params
209  if (ctx->max_au_size)
210  ctx->enforce_hrd = 1;
211  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_ENFORCE_HRD, ctx->enforce_hrd);
212  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_FILLER_DATA_ENABLE, ctx->filler_data);
213 
214  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_TARGET_BITRATE, avctx->bit_rate);
215 
216  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CBR) {
217  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_PEAK_BITRATE, avctx->bit_rate);
218  }
219  if (avctx->rc_max_rate) {
220  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_PEAK_BITRATE, avctx->rc_max_rate);
221  } else if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR) {
222  av_log(ctx, AV_LOG_WARNING, "rate control mode is PEAK_CONSTRAINED_VBR but rc_max_rate is not set\n");
223  }
224 
225  // init encoder
226  res = ctx->encoder->pVtbl->Init(ctx->encoder, ctx->format, avctx->width, avctx->height);
227  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "encoder->Init() failed with error %d\n", res);
228 
229  // init dynamic picture control params
230  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_AU_SIZE, ctx->max_au_size);
231 
232  if (ctx->min_qp_i != -1) {
233  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MIN_QP_I, ctx->min_qp_i);
234  } else if (avctx->qmin != -1) {
235  int qval = avctx->qmin > 51 ? 51 : avctx->qmin;
236  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MIN_QP_I, qval);
237  }
238  if (ctx->max_qp_i != -1) {
239  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_QP_I, ctx->max_qp_i);
240  } else if (avctx->qmax != -1) {
241  int qval = avctx->qmax > 51 ? 51 : avctx->qmax;
242  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_QP_I, qval);
243  }
244  if (ctx->min_qp_p != -1) {
245  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MIN_QP_P, ctx->min_qp_p);
246  } else if (avctx->qmin != -1) {
247  int qval = avctx->qmin > 51 ? 51 : avctx->qmin;
248  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MIN_QP_P, qval);
249  }
250  if (ctx->max_qp_p != -1) {
251  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_QP_P, ctx->max_qp_p);
252  } else if (avctx->qmax != -1) {
253  int qval = avctx->qmax > 51 ? 51 : avctx->qmax;
254  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_QP_P, qval);
255  }
256 
257  if (ctx->qp_p != -1) {
258  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_QP_P, ctx->qp_p);
259  }
260  if (ctx->qp_i != -1) {
261  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_QP_I, ctx->qp_i);
262  }
263  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_SKIP_FRAME_ENABLE, ctx->skip_frame);
264 
265 
266  // fill extradata
267  res = AMFVariantInit(&var);
268  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "AMFVariantInit() failed with error %d\n", res);
269 
270  res = ctx->encoder->pVtbl->GetProperty(ctx->encoder, AMF_VIDEO_ENCODER_HEVC_EXTRADATA, &var);
271  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "GetProperty(AMF_VIDEO_ENCODER_EXTRADATA) failed with error %d\n", res);
272  AMF_RETURN_IF_FALSE(ctx, var.pInterface != NULL, AVERROR_BUG, "GetProperty(AMF_VIDEO_ENCODER_EXTRADATA) returned NULL\n");
273 
274  guid = IID_AMFBuffer();
275 
276  res = var.pInterface->pVtbl->QueryInterface(var.pInterface, &guid, (void**)&buffer); // query for buffer interface
277  if (res != AMF_OK) {
278  var.pInterface->pVtbl->Release(var.pInterface);
279  }
280  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "QueryInterface(IID_AMFBuffer) failed with error %d\n", res);
281 
282  avctx->extradata_size = (int)buffer->pVtbl->GetSize(buffer);
283  avctx->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
284  if (!avctx->extradata) {
285  buffer->pVtbl->Release(buffer);
286  var.pInterface->pVtbl->Release(var.pInterface);
287  return AVERROR(ENOMEM);
288  }
289  memcpy(avctx->extradata, buffer->pVtbl->GetNative(buffer), avctx->extradata_size);
290 
291  buffer->pVtbl->Release(buffer);
292  var.pInterface->pVtbl->Release(var.pInterface);
293 
294  return 0;
295 }
296 static const FFCodecDefault defaults[] = {
297  { "refs", "-1" },
298  { "aspect", "0" },
299  { "b", "2M" },
300  { "g", "250" },
301  { "slices", "1" },
302  { "qmin", "-1" },
303  { "qmax", "-1" },
304  { NULL },
305 };
306 static const AVClass hevc_amf_class = {
307  .class_name = "hevc_amf",
308  .item_name = av_default_item_name,
309  .option = options,
310  .version = LIBAVUTIL_VERSION_INT,
311 };
312 
313 const FFCodec ff_hevc_amf_encoder = {
314  .p.name = "hevc_amf",
315  .p.long_name = NULL_IF_CONFIG_SMALL("AMD AMF HEVC encoder"),
316  .p.type = AVMEDIA_TYPE_VIDEO,
317  .p.id = AV_CODEC_ID_HEVC,
318  .init = amf_encode_init_hevc,
319  FF_CODEC_RECEIVE_PACKET_CB(ff_amf_receive_packet),
320  .close = ff_amf_encode_close,
321  .priv_data_size = sizeof(AmfContext),
322  .p.priv_class = &hevc_amf_class,
323  .defaults = defaults,
324  .p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE |
325  AV_CODEC_CAP_DR1,
326  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
327  .p.pix_fmts = ff_amf_pix_fmts,
328  .p.wrapper_name = "amf",
329  .hw_configs = ff_amfenc_hw_configs,
330 };
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
level
uint8_t level
Definition: svq3.c:206
FF_CODEC_CAP_INIT_CLEANUP
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: codec_internal.h:39
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
AV_CODEC_CAP_HARDWARE
#define AV_CODEC_CAP_HARDWARE
Codec is backed by a hardware implementation.
Definition: codec.h:162
ff_hevc_amf_encoder
const FFCodec ff_hevc_amf_encoder
Definition: amfenc_hevc.c:313
internal.h
AVOption
AVOption.
Definition: opt.h:251
options
static const AVOption options[]
Definition: amfenc_hevc.c:27
FFCodec
Definition: codec_internal.h:112
FF_LEVEL_UNKNOWN
#define FF_LEVEL_UNKNOWN
Definition: avcodec.h:1674
AMF_RETURN_IF_FALSE
#define AMF_RETURN_IF_FALSE(avctx, exp, ret_value,...)
Error handling helper.
Definition: amfenc.h:145
AVCodecContext::qmax
int qmax
maximum quantizer
Definition: avcodec.h:1185
quality
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about quality
Definition: rate_distortion.txt:12
AVCodecContext::framerate
AVRational framerate
Definition: avcodec.h:1732
framerate
int framerate
Definition: h264_levels.c:65
FFCodecDefault
Definition: codec_internal.h:82
FFCodec::p
AVCodec p
The public AVCodec.
Definition: codec_internal.h:116
OFFSET
#define OFFSET(x)
Definition: amfenc_hevc.c:25
ff_amf_encode_close
int av_cold ff_amf_encode_close(AVCodecContext *avctx)
Common encoder termination function.
Definition: amfenc.c:372
AVCodecContext::refs
int refs
number of reference frames
Definition: avcodec.h:938
ff_amf_encode_init
int ff_amf_encode_init(AVCodecContext *avctx)
Common encoder initization function.
Definition: amfenc.c:493
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:469
AV_CODEC_FLAG_LOOP_FILTER
#define AV_CODEC_FLAG_LOOP_FILTER
loop filter.
Definition: avcodec.h:245
AVRational::num
int num
Numerator.
Definition: rational.h:59
av_cold
#define av_cold
Definition: attributes.h:90
FF_PROFILE_HEVC_MAIN
#define FF_PROFILE_HEVC_MAIN
Definition: avcodec.h:1635
AVCodecContext::rc_initial_buffer_occupancy
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:1242
AVCodecContext::extradata_size
int extradata_size
Definition: avcodec.h:491
AVCodecContext::ticks_per_frame
int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:521
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:201
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AVCodecContext::rc_max_rate
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:1214
AVCodecContext::rc_buffer_size
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:1199
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
FF_CODEC_RECEIVE_PACKET_CB
#define FF_CODEC_RECEIVE_PACKET_CB(func)
Definition: codec_internal.h:269
AVCodecContext::bit_rate
int64_t bit_rate
the average bitrate
Definition: avcodec.h:439
ff_amf_receive_packet
int ff_amf_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
Ecoding one frame - common function for all AMF encoders.
Definition: amfenc.c:578
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
defaults
static const FFCodecDefault defaults[]
Definition: amfenc_hevc.c:296
AVCodecContext::level
int level
level
Definition: avcodec.h:1673
usage
const char * usage
Definition: floatimg_cmp.c:60
AVCodecContext::time_base
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition: avcodec.h:512
aud
static int FUNC() aud(CodedBitstreamContext *ctx, RWContext *rw, H264RawAUD *current)
Definition: cbs_h264_syntax_template.c:842
amf_encode_init_hevc
static av_cold int amf_encode_init_hevc(AVCodecContext *avctx)
Definition: amfenc_hevc.c:95
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
AVCodecContext::gop_size
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:584
codec_internal.h
ff_amf_pix_fmts
enum AVPixelFormat ff_amf_pix_fmts[]
Supported formats.
Definition: amfenc.c:54
AVCodecContext::extradata
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:490
internal.h
ff_amfenc_hw_configs
const AVCodecHWConfigInternal *const ff_amfenc_hw_configs[]
Definition: amfenc.c:772
AV_CODEC_ID_HEVC
@ AV_CODEC_ID_HEVC
Definition: codec_id.h:224
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:264
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:203
profile
int profile
Definition: mxfenc.c:2005
AVCodecContext::height
int height
Definition: avcodec.h:562
ret
ret
Definition: filter_design.txt:187
AVClass::class_name
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:71
VE
#define VE
Definition: amfenc_hevc.c:26
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: defs.h:40
AVCodecContext
main external API structure.
Definition: avcodec.h:389
buffer
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
Definition: filter_design.txt:49
hevc_amf_class
static const AVClass hevc_amf_class
Definition: amfenc_hevc.c:306
AVCodecContext::qmin
int qmin
minimum quantizer
Definition: avcodec.h:1178
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
AVCodecContext::profile
int profile
profile
Definition: avcodec.h:1547
AV_CODEC_CAP_DELAY
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: codec.h:82
amfenc.h
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AVCodecContext::slices
int slices
Number of slices.
Definition: avcodec.h:989
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:416
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:562
AVERROR_BUG
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:52
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
AmfContext
AMF encoder context.
Definition: amfenc.h:47
int
int
Definition: ffmpeg_filter.c:153
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
AVCodecContext::sample_aspect_ratio
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel.
Definition: avcodec.h:759
Generated on Wed Aug 24 2022 21:41:17 for FFmpeg by   doxygen 1.8.17