FFmpeg
amfenc_h264.c
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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 
20 #include "libavutil/internal.h"
21 #include "libavutil/opt.h"
22 #include "amfenc.h"
23 #include "codec_internal.h"
24 #include "internal.h"
25 
26 #define OFFSET(x) offsetof(AmfContext, x)
27 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
28 
29 static const AVOption options[] = {
30  // Static
31  /// Usage
32  { "usage", "Encoder Usage", OFFSET(usage), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_USAGE_TRANSCONDING }, AMF_VIDEO_ENCODER_USAGE_TRANSCONDING, AMF_VIDEO_ENCODER_USAGE_WEBCAM, VE, "usage" },
33  { "transcoding", "Generic Transcoding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_TRANSCONDING }, 0, 0, VE, "usage" },
34  { "ultralowlatency","", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_ULTRA_LOW_LATENCY }, 0, 0, VE, "usage" },
35  { "lowlatency", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_LOW_LATENCY }, 0, 0, VE, "usage" },
36  { "webcam", "Webcam", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_WEBCAM }, 0, 0, VE, "usage" },
37 
38  /// Profile,
39  { "profile", "Profile", OFFSET(profile),AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_PROFILE_MAIN }, AMF_VIDEO_ENCODER_PROFILE_BASELINE, AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_HIGH, VE, "profile" },
40  { "main", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_MAIN }, 0, 0, VE, "profile" },
41  { "high", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_HIGH }, 0, 0, VE, "profile" },
42  { "constrained_baseline", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_BASELINE }, 0, 0, VE, "profile" },
43  { "constrained_high", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_HIGH }, 0, 0, VE, "profile" },
44 
45  /// Profile Level
46  { "level", "Profile Level", OFFSET(level), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 62, VE, "level" },
47  { "auto", "", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, VE, "level" },
48  { "1.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 10 }, 0, 0, VE, "level" },
49  { "1.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 11 }, 0, 0, VE, "level" },
50  { "1.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 12 }, 0, 0, VE, "level" },
51  { "1.3", "", 0, AV_OPT_TYPE_CONST, { .i64 = 13 }, 0, 0, VE, "level" },
52  { "2.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 20 }, 0, 0, VE, "level" },
53  { "2.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 21 }, 0, 0, VE, "level" },
54  { "2.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 22 }, 0, 0, VE, "level" },
55  { "3.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 30 }, 0, 0, VE, "level" },
56  { "3.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 31 }, 0, 0, VE, "level" },
57  { "3.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 32 }, 0, 0, VE, "level" },
58  { "4.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 40 }, 0, 0, VE, "level" },
59  { "4.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 41 }, 0, 0, VE, "level" },
60  { "4.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 42 }, 0, 0, VE, "level" },
61  { "5.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 50 }, 0, 0, VE, "level" },
62  { "5.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 51 }, 0, 0, VE, "level" },
63  { "5.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 52 }, 0, 0, VE, "level" },
64  { "6.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 60 }, 0, 0, VE, "level" },
65  { "6.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 61 }, 0, 0, VE, "level" },
66  { "6.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 62 }, 0, 0, VE, "level" },
67 
68 
69  /// Quality Preset
70  { "quality", "Quality Preference", OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_SPEED }, AMF_VIDEO_ENCODER_QUALITY_PRESET_BALANCED, AMF_VIDEO_ENCODER_QUALITY_PRESET_QUALITY, VE, "quality" },
71  { "speed", "Prefer Speed", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_SPEED }, 0, 0, VE, "quality" },
72  { "balanced", "Balanced", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_BALANCED }, 0, 0, VE, "quality" },
73  { "quality", "Prefer Quality", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_QUALITY }, 0, 0, VE, "quality" },
74 
75  // Dynamic
76  /// Rate Control Method
77  { "rc", "Rate Control Method", OFFSET(rate_control_mode), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_UNKNOWN }, AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_UNKNOWN, AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_LATENCY_CONSTRAINED_VBR, VE, "rc" },
78  { "cqp", "Constant Quantization Parameter", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP }, 0, 0, VE, "rc" },
79  { "cbr", "Constant Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CBR }, 0, 0, VE, "rc" },
80  { "vbr_peak", "Peak Contrained Variable Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR }, 0, 0, VE, "rc" },
81  { "vbr_latency", "Latency Constrained Variable Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_LATENCY_CONSTRAINED_VBR }, 0, 0, VE, "rc" },
82 
83  /// Enforce HRD, Filler Data, VBAQ, Frame Skipping
84  { "enforce_hrd", "Enforce HRD", OFFSET(enforce_hrd), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
85  { "filler_data", "Filler Data Enable", OFFSET(filler_data), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
86  { "vbaq", "Enable VBAQ", OFFSET(enable_vbaq), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
87  { "frame_skipping", "Rate Control Based Frame Skip", OFFSET(skip_frame), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
88 
89  /// QP Values
90  { "qp_i", "Quantization Parameter for I-Frame", OFFSET(qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
91  { "qp_p", "Quantization Parameter for P-Frame", OFFSET(qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
92  { "qp_b", "Quantization Parameter for B-Frame", OFFSET(qp_b), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
93 
94  /// Pre-Pass, Pre-Analysis, Two-Pass
95  { "preanalysis", "Pre-Analysis Mode", OFFSET(preanalysis), AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, 1, VE, NULL },
96 
97  /// Maximum Access Unit Size
98  { "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 },
99 
100  /// Header Insertion Spacing
101  { "header_spacing", "Header Insertion Spacing", OFFSET(header_spacing), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1000, VE },
102 
103  /// B-Frames
104  // BPicturesPattern=bf
105  { "bf_delta_qp", "B-Picture Delta QP", OFFSET(b_frame_delta_qp), AV_OPT_TYPE_INT, { .i64 = 4 }, -10, 10, VE },
106  { "bf_ref", "Enable Reference to B-Frames", OFFSET(b_frame_ref), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
107  { "bf_ref_delta_qp","Reference B-Picture Delta QP", OFFSET(ref_b_frame_delta_qp), AV_OPT_TYPE_INT, { .i64 = 4 }, -10, 10, VE },
108 
109  /// Intra-Refresh
110  { "intra_refresh_mb","Intra Refresh MBs Number Per Slot in Macroblocks", OFFSET(intra_refresh_mb), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
111 
112  /// coder
113  { "coder", "Coding Type", OFFSET(coding_mode), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_UNDEFINED }, AMF_VIDEO_ENCODER_UNDEFINED, AMF_VIDEO_ENCODER_CALV, VE, "coder" },
114  { "auto", "Automatic", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_UNDEFINED }, 0, 0, VE, "coder" },
115  { "cavlc", "Context Adaptive Variable-Length Coding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_CALV }, 0, 0, VE, "coder" },
116  { "cabac", "Context Adaptive Binary Arithmetic Coding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_CABAC }, 0, 0, VE, "coder" },
117 
118  { "me_half_pel", "Enable ME Half Pixel", OFFSET(me_half_pel), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
119  { "me_quarter_pel", "Enable ME Quarter Pixel", OFFSET(me_quarter_pel),AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
120 
121  { "aud", "Inserts AU Delimiter NAL unit", OFFSET(aud) ,AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
122 
123  { "log_to_dbg", "Enable AMF logging to debug output", OFFSET(log_to_dbg) , AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
124 
125  { NULL }
126 };
127 
128 static av_cold int amf_encode_init_h264(AVCodecContext *avctx)
129 {
130  int ret = 0;
131  AMF_RESULT res = AMF_OK;
132  AmfContext *ctx = avctx->priv_data;
133  AMFVariantStruct var = { 0 };
134  amf_int64 profile = 0;
135  amf_int64 profile_level = 0;
136  AMFBuffer *buffer;
137  AMFGuid guid;
138  AMFRate framerate;
139  AMFSize framesize = AMFConstructSize(avctx->width, avctx->height);
140  int deblocking_filter = (avctx->flags & AV_CODEC_FLAG_LOOP_FILTER) ? 1 : 0;
141 
142  if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
143  framerate = AMFConstructRate(avctx->framerate.num, avctx->framerate.den);
144  } else {
145  framerate = AMFConstructRate(avctx->time_base.den, avctx->time_base.num * avctx->ticks_per_frame);
146  }
147 
148  if ((ret = ff_amf_encode_init(avctx)) != 0)
149  return ret;
150 
151  // Static parameters
152  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_USAGE, ctx->usage);
153 
154  AMF_ASSIGN_PROPERTY_SIZE(res, ctx->encoder, AMF_VIDEO_ENCODER_FRAMESIZE, framesize);
155 
156  AMF_ASSIGN_PROPERTY_RATE(res, ctx->encoder, AMF_VIDEO_ENCODER_FRAMERATE, framerate);
157 
158  switch (avctx->profile) {
159  case FF_PROFILE_H264_BASELINE:
160  profile = AMF_VIDEO_ENCODER_PROFILE_BASELINE;
161  break;
162  case FF_PROFILE_H264_MAIN:
163  profile = AMF_VIDEO_ENCODER_PROFILE_MAIN;
164  break;
165  case FF_PROFILE_H264_HIGH:
166  profile = AMF_VIDEO_ENCODER_PROFILE_HIGH;
167  break;
168  case FF_PROFILE_H264_CONSTRAINED_BASELINE:
169  profile = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_BASELINE;
170  break;
171  case (FF_PROFILE_H264_HIGH | FF_PROFILE_H264_CONSTRAINED):
172  profile = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_HIGH;
173  break;
174  }
175  if (profile == 0) {
176  profile = ctx->profile;
177  }
178 
179  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PROFILE, profile);
180 
181  profile_level = avctx->level;
182  if (profile_level == FF_LEVEL_UNKNOWN) {
183  profile_level = ctx->level;
184  }
185  if (profile_level != 0) {
186  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PROFILE_LEVEL, profile_level);
187  }
188 
189  // Maximum Reference Frames
190  if (avctx->refs != -1) {
191  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_NUM_REFRAMES, avctx->refs);
192  }
193  if (avctx->sample_aspect_ratio.den && avctx->sample_aspect_ratio.num) {
194  AMFRatio ratio = AMFConstructRatio(avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
195  AMF_ASSIGN_PROPERTY_RATIO(res, ctx->encoder, AMF_VIDEO_ENCODER_ASPECT_RATIO, ratio);
196  }
197 
198  /// Color Range (Partial/TV/MPEG or Full/PC/JPEG)
199  if (avctx->color_range == AVCOL_RANGE_JPEG) {
200  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_FULL_RANGE_COLOR, 1);
201  }
202 
203  // autodetect rate control method
204  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_UNKNOWN) {
205  if (ctx->qp_i != -1 || ctx->qp_p != -1 || ctx->qp_b != -1) {
206  ctx->rate_control_mode = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP;
207  av_log(ctx, AV_LOG_DEBUG, "Rate control turned to CQP\n");
208  } else if (avctx->rc_max_rate > 0 ) {
209  ctx->rate_control_mode = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR;
210  av_log(ctx, AV_LOG_DEBUG, "Rate control turned to Peak VBR\n");
211  } else {
212  ctx->rate_control_mode = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CBR;
213  av_log(ctx, AV_LOG_DEBUG, "Rate control turned to CBR\n");
214  }
215  }
216 
217  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP) {
218  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_RATE_CONTROL_PREANALYSIS_ENABLE, AMF_VIDEO_ENCODER_PREENCODE_DISABLED);
219  if (ctx->preanalysis)
220  av_log(ctx, AV_LOG_WARNING, "Pre-Analysis is not supported by cqp Rate Control Method, automatically disabled\n");
221  } else {
222  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_RATE_CONTROL_PREANALYSIS_ENABLE, ctx->preanalysis);
223  }
224 
225  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QUALITY_PRESET, ctx->quality);
226 
227  // Dynamic parmaters
228  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD, ctx->rate_control_mode);
229 
230  /// VBV Buffer
231  if (avctx->rc_buffer_size != 0) {
232  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_VBV_BUFFER_SIZE, avctx->rc_buffer_size);
233  if (avctx->rc_initial_buffer_occupancy != 0) {
234  int amf_buffer_fullness = avctx->rc_initial_buffer_occupancy * 64 / avctx->rc_buffer_size;
235  if (amf_buffer_fullness > 64)
236  amf_buffer_fullness = 64;
237  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_INITIAL_VBV_BUFFER_FULLNESS, amf_buffer_fullness);
238  }
239  }
240  /// Maximum Access Unit Size
241  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_AU_SIZE, ctx->max_au_size);
242 
243  if (ctx->max_au_size)
244  ctx->enforce_hrd = 1;
245 
246  // QP Minimum / Maximum
247  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP) {
248  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MIN_QP, 0);
249  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_QP, 51);
250  } else {
251  if (avctx->qmin != -1) {
252  int qval = avctx->qmin > 51 ? 51 : avctx->qmin;
253  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MIN_QP, qval);
254  }
255  if (avctx->qmax != -1) {
256  int qval = avctx->qmax > 51 ? 51 : avctx->qmax;
257  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_QP, qval);
258  }
259  }
260  // QP Values
261  if (ctx->qp_i != -1)
262  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QP_I, ctx->qp_i);
263  if (ctx->qp_p != -1)
264  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QP_P, ctx->qp_p);
265  if (ctx->qp_b != -1)
266  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QP_B, ctx->qp_b);
267 
268  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_TARGET_BITRATE, avctx->bit_rate);
269 
270  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CBR) {
271  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PEAK_BITRATE, avctx->bit_rate);
272  }
273  if (avctx->rc_max_rate) {
274  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PEAK_BITRATE, avctx->rc_max_rate);
275  } else if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR) {
276  av_log(ctx, AV_LOG_WARNING, "rate control mode is PEAK_CONSTRAINED_VBR but rc_max_rate is not set\n");
277  }
278 
279  // Initialize Encoder
280  res = ctx->encoder->pVtbl->Init(ctx->encoder, ctx->format, avctx->width, avctx->height);
281  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "encoder->Init() failed with error %d\n", res);
282 
283  // Enforce HRD, Filler Data, VBAQ, Frame Skipping, Deblocking Filter
284  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_ENFORCE_HRD, !!ctx->enforce_hrd);
285  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_FILLER_DATA_ENABLE, !!ctx->filler_data);
286  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_RATE_CONTROL_SKIP_FRAME_ENABLE, !!ctx->skip_frame);
287  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP) {
288  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_ENABLE_VBAQ, 0);
289  if (ctx->enable_vbaq)
290  av_log(ctx, AV_LOG_WARNING, "VBAQ is not supported by cqp Rate Control Method, automatically disabled\n");
291  } else {
292  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_ENABLE_VBAQ, !!ctx->enable_vbaq);
293  }
294  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_DE_BLOCKING_FILTER, !!deblocking_filter);
295 
296  // B-Frames
297  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_B_PIC_PATTERN, avctx->max_b_frames);
298  if (res != AMF_OK) {
299  res = ctx->encoder->pVtbl->GetProperty(ctx->encoder, AMF_VIDEO_ENCODER_B_PIC_PATTERN, &var);
300  av_log(ctx, AV_LOG_WARNING, "B-frames=%d is not supported by this GPU, switched to %d\n",
301  avctx->max_b_frames, (int)var.int64Value);
302  avctx->max_b_frames = (int)var.int64Value;
303  }
304  if (avctx->max_b_frames) {
305  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_B_PIC_DELTA_QP, ctx->b_frame_delta_qp);
306  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_B_REFERENCE_ENABLE, !!ctx->b_frame_ref);
307  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_REF_B_PIC_DELTA_QP, ctx->ref_b_frame_delta_qp);
308  }
309 
310  // Keyframe Interval
311  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_IDR_PERIOD, avctx->gop_size);
312 
313  // Header Insertion Spacing
314  if (ctx->header_spacing >= 0)
315  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEADER_INSERTION_SPACING, ctx->header_spacing);
316 
317  // Intra-Refresh, Slicing
318  if (ctx->intra_refresh_mb > 0)
319  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_INTRA_REFRESH_NUM_MBS_PER_SLOT, ctx->intra_refresh_mb);
320  if (avctx->slices > 1)
321  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_SLICES_PER_FRAME, avctx->slices);
322 
323  // Coding
324  if (ctx->coding_mode != 0)
325  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_CABAC_ENABLE, ctx->coding_mode);
326 
327  // Motion Estimation
328  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_MOTION_HALF_PIXEL, !!ctx->me_half_pel);
329  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_MOTION_QUARTERPIXEL, !!ctx->me_quarter_pel);
330 
331  // fill extradata
332  res = AMFVariantInit(&var);
333  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "AMFVariantInit() failed with error %d\n", res);
334 
335  res = ctx->encoder->pVtbl->GetProperty(ctx->encoder, AMF_VIDEO_ENCODER_EXTRADATA, &var);
336  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "GetProperty(AMF_VIDEO_ENCODER_EXTRADATA) failed with error %d\n", res);
337  AMF_RETURN_IF_FALSE(ctx, var.pInterface != NULL, AVERROR_BUG, "GetProperty(AMF_VIDEO_ENCODER_EXTRADATA) returned NULL\n");
338 
339  guid = IID_AMFBuffer();
340 
341  res = var.pInterface->pVtbl->QueryInterface(var.pInterface, &guid, (void**)&buffer); // query for buffer interface
342  if (res != AMF_OK) {
343  var.pInterface->pVtbl->Release(var.pInterface);
344  }
345  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "QueryInterface(IID_AMFBuffer) failed with error %d\n", res);
346 
347  avctx->extradata_size = (int)buffer->pVtbl->GetSize(buffer);
348  avctx->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
349  if (!avctx->extradata) {
350  buffer->pVtbl->Release(buffer);
351  var.pInterface->pVtbl->Release(var.pInterface);
352  return AVERROR(ENOMEM);
353  }
354  memcpy(avctx->extradata, buffer->pVtbl->GetNative(buffer), avctx->extradata_size);
355 
356  buffer->pVtbl->Release(buffer);
357  var.pInterface->pVtbl->Release(var.pInterface);
358 
359  return 0;
360 }
361 
362 static const FFCodecDefault defaults[] = {
363  { "refs", "-1" },
364  { "aspect", "0" },
365  { "qmin", "-1" },
366  { "qmax", "-1" },
367  { "b", "2M" },
368  { "g", "250" },
369  { "slices", "1" },
370  { "flags", "+loop"},
371  { NULL },
372 };
373 
374 static const AVClass h264_amf_class = {
375  .class_name = "h264_amf",
376  .item_name = av_default_item_name,
377  .option = options,
378  .version = LIBAVUTIL_VERSION_INT,
379 };
380 
381 const FFCodec ff_h264_amf_encoder = {
382  .p.name = "h264_amf",
383  .p.long_name = NULL_IF_CONFIG_SMALL("AMD AMF H.264 Encoder"),
384  .p.type = AVMEDIA_TYPE_VIDEO,
385  .p.id = AV_CODEC_ID_H264,
386  .init = amf_encode_init_h264,
387  FF_CODEC_RECEIVE_PACKET_CB(ff_amf_receive_packet),
388  .close = ff_amf_encode_close,
389  .priv_data_size = sizeof(AmfContext),
390  .p.priv_class = &h264_amf_class,
391  .defaults = defaults,
392  .p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE |
393  AV_CODEC_CAP_DR1,
394  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
395  .p.pix_fmts = ff_amf_pix_fmts,
396  .p.wrapper_name = "amf",
397  .hw_configs = ff_amfenc_hw_configs,
398 };
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_PROFILE_H264_BASELINE
#define FF_PROFILE_H264_BASELINE
Definition: avcodec.h:1586
FF_PROFILE_H264_CONSTRAINED_BASELINE
#define FF_PROFILE_H264_CONSTRAINED_BASELINE
Definition: avcodec.h:1587
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:599
internal.h
AVOption
AVOption.
Definition: opt.h:251
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
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
FF_PROFILE_H264_HIGH
#define FF_PROFILE_H264_HIGH
Definition: avcodec.h:1590
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
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
h264_amf_class
static const AVClass h264_amf_class
Definition: amfenc_h264.c:374
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
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition: codec_id.h:77
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
AVCodecContext::color_range
enum AVColorRange color_range
MPEG vs JPEG YUV range.
Definition: avcodec.h:973
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
amf_encode_init_h264
static av_cold int amf_encode_init_h264(AVCodecContext *avctx)
Definition: amfenc_h264.c:128
VE
#define VE
Definition: amfenc_h264.c:27
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
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
defaults
static const FFCodecDefault defaults[]
Definition: amfenc_h264.c:362
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
OFFSET
#define OFFSET(x)
Definition: amfenc_h264.c:26
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
ff_h264_amf_encoder
const FFCodec ff_h264_amf_encoder
Definition: amfenc_h264.c:381
options
static const AVOption options[]
Definition: amfenc_h264.c:29
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
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: defs.h:40
FF_PROFILE_H264_CONSTRAINED
#define FF_PROFILE_H264_CONSTRAINED
Definition: avcodec.h:1583
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
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
FF_PROFILE_H264_MAIN
#define FF_PROFILE_H264_MAIN
Definition: avcodec.h:1588
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AVCodecContext::max_b_frames
int max_b_frames
maximum number of B-frames between non-B-frames Note: The output will be delayed by max_b_frames+1 re...
Definition: avcodec.h:661
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
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