FFmpeg
amfenc_h264.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 
20 #include "libavutil/internal.h"
21 #include "libavutil/opt.h"
22 #include "amfenc.h"
23 #include "codec_internal.h"
24 #include "internal.h"
25 #include <AMF/components/PreAnalysis.h>
26 
27 #define OFFSET(x) offsetof(AmfContext, x)
28 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
29 
30 static const AVOption options[] = {
31  // Static
32  /// Usage
33  { "usage", "Encoder Usage", OFFSET(usage), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_USAGE_TRANSCODING }, AMF_VIDEO_ENCODER_USAGE_TRANSCODING, AMF_VIDEO_ENCODER_USAGE_LOW_LATENCY_HIGH_QUALITY, VE, "usage" },
34  { "transcoding", "Generic Transcoding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_TRANSCODING }, 0, 0, VE, "usage" },
35  { "ultralowlatency","ultra low latency trancoding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_ULTRA_LOW_LATENCY }, 0, 0, VE, "usage" },
36  { "lowlatency", "low latency trancoding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_LOW_LATENCY }, 0, 0, VE, "usage" },
37  { "webcam", "Webcam", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_WEBCAM }, 0, 0, VE, "usage" },
38  { "high_quality", "high quality trancoding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_HIGH_QUALITY }, 0, 0, VE, "usage" },
39  { "lowlatency_high_quality", "low latency yet high quality trancoding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_LOW_LATENCY_HIGH_QUALITY }, 0, 0, VE, "usage" },
40 
41 
42  /// Profile,
43  { "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" },
44  { "main", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_MAIN }, 0, 0, VE, "profile" },
45  { "high", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_HIGH }, 0, 0, VE, "profile" },
46  { "constrained_baseline", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_BASELINE }, 0, 0, VE, "profile" },
47  { "constrained_high", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_HIGH }, 0, 0, VE, "profile" },
48 
49  /// Profile Level
50  { "level", "Profile Level", OFFSET(level), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 62, VE, "level" },
51  { "auto", "", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, VE, "level" },
52  { "1.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 10 }, 0, 0, VE, "level" },
53  { "1.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 11 }, 0, 0, VE, "level" },
54  { "1.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 12 }, 0, 0, VE, "level" },
55  { "1.3", "", 0, AV_OPT_TYPE_CONST, { .i64 = 13 }, 0, 0, VE, "level" },
56  { "2.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 20 }, 0, 0, VE, "level" },
57  { "2.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 21 }, 0, 0, VE, "level" },
58  { "2.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 22 }, 0, 0, VE, "level" },
59  { "3.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 30 }, 0, 0, VE, "level" },
60  { "3.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 31 }, 0, 0, VE, "level" },
61  { "3.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 32 }, 0, 0, VE, "level" },
62  { "4.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 40 }, 0, 0, VE, "level" },
63  { "4.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 41 }, 0, 0, VE, "level" },
64  { "4.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 42 }, 0, 0, VE, "level" },
65  { "5.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 50 }, 0, 0, VE, "level" },
66  { "5.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 51 }, 0, 0, VE, "level" },
67  { "5.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 52 }, 0, 0, VE, "level" },
68  { "6.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 60 }, 0, 0, VE, "level" },
69  { "6.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 61 }, 0, 0, VE, "level" },
70  { "6.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 62 }, 0, 0, VE, "level" },
71 
72 
73  /// Quality Preset
74  { "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" },
75  { "speed", "Prefer Speed", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_SPEED }, 0, 0, VE, "quality" },
76  { "balanced", "Balanced", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_BALANCED }, 0, 0, VE, "quality" },
77  { "quality", "Prefer Quality", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_QUALITY }, 0, 0, VE, "quality" },
78 
79  // Dynamic
80  /// Rate Control Method
81  { "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_HIGH_QUALITY_CBR, VE, "rc" },
82  { "cqp", "Constant Quantization Parameter", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP }, 0, 0, VE, "rc" },
83  { "cbr", "Constant Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CBR }, 0, 0, VE, "rc" },
84  { "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" },
85  { "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" },
86  { "qvbr", "Quality Variable Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_QUALITY_VBR }, 0, 0, VE, "rc" },
87  { "hqvbr", "High Quality Variable Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_HIGH_QUALITY_VBR }, 0, 0, VE, "rc" },
88  { "hqcbr", "High Quality Constant Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_HIGH_QUALITY_CBR }, 0, 0, VE, "rc" },
89 
90  { "qvbr_quality_level", "Sets the QVBR quality level", OFFSET(qvbr_quality_level),AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
91 
92  /// Enforce HRD, Filler Data, VBAQ, Frame Skipping
93  { "enforce_hrd", "Enforce HRD", OFFSET(enforce_hrd), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
94  { "filler_data", "Filler Data Enable", OFFSET(filler_data), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
95  { "vbaq", "Enable VBAQ", OFFSET(enable_vbaq), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
96  { "frame_skipping", "Rate Control Based Frame Skip", OFFSET(skip_frame), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
97 
98  /// QP Values
99  { "qp_i", "Quantization Parameter for I-Frame", OFFSET(qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
100  { "qp_p", "Quantization Parameter for P-Frame", OFFSET(qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
101  { "qp_b", "Quantization Parameter for B-Frame", OFFSET(qp_b), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
102 
103  /// Pre-Pass, Pre-Analysis, Two-Pass
104  { "preencode", "Pre-encode assisted rate control", OFFSET(preencode), AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, 1, VE, NULL },
105 
106  /// Maximum Access Unit Size
107  { "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 },
108 
109  /// Header Insertion Spacing
110  { "header_spacing", "Header Insertion Spacing", OFFSET(header_spacing), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1000, VE },
111 
112  /// B-Frames
113  // BPicturesPattern=bf
114  { "bf_delta_qp", "B-Picture Delta QP", OFFSET(b_frame_delta_qp), AV_OPT_TYPE_INT, { .i64 = 4 }, -10, 10, VE },
115  { "bf_ref", "Enable Reference to B-Frames", OFFSET(b_frame_ref), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
116  { "bf_ref_delta_qp","Reference B-Picture Delta QP", OFFSET(ref_b_frame_delta_qp), AV_OPT_TYPE_INT, { .i64 = 4 }, -10, 10, VE },
117 
118  { "max_b_frames", "Maximum number of consecutive B Pictures", OFFSET(max_consecutive_b_frames), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 3, VE },
119  { "bf", "B Picture Pattern", OFFSET(max_b_frames), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 3, VE },
120 
121  /// Intra-Refresh
122  { "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 },
123 
124  /// coder
125  { "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" },
126  { "auto", "Automatic", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_UNDEFINED }, 0, 0, VE, "coder" },
127  { "cavlc", "Context Adaptive Variable-Length Coding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_CALV }, 0, 0, VE, "coder" },
128  { "cabac", "Context Adaptive Binary Arithmetic Coding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_CABAC }, 0, 0, VE, "coder" },
129 
130  { "high_motion_quality_boost_enable", "Enable High motion quality boost mode", OFFSET(hw_high_motion_quality_boost), AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE },
131 
132  { "me_half_pel", "Enable ME Half Pixel", OFFSET(me_half_pel), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
133  { "me_quarter_pel", "Enable ME Quarter Pixel", OFFSET(me_quarter_pel),AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
134 
135  { "aud", "Inserts AU Delimiter NAL unit", OFFSET(aud) ,AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
136 
137  { "log_to_dbg", "Enable AMF logging to debug output", OFFSET(log_to_dbg) , AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
138 
139  //Pre Analysis options
140  { "preanalysis", "Enable preanalysis", OFFSET(preanalysis), AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE },
141 
142  { "pa_activity_type", "Set the type of activity analysis", OFFSET(pa_activity_type), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, AMF_PA_ACTIVITY_YUV, VE, "activity_type" },
143  { "y", "activity y", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_ACTIVITY_Y }, 0, 0, VE, "activity_type" },
144  { "yuv", "activity yuv", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_ACTIVITY_YUV }, 0, 0, VE, "activity_type" },
145 
146  { "pa_scene_change_detection_enable", "Enable scene change detection", OFFSET(pa_scene_change_detection), AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE },
147 
148  { "pa_scene_change_detection_sensitivity", "Set the sensitivity of scene change detection", OFFSET(pa_scene_change_detection_sensitivity), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, AMF_PA_SCENE_CHANGE_DETECTION_SENSITIVITY_HIGH, VE, "scene_change_sensitivity" },
149  { "low", "low scene change dectection sensitivity", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_SCENE_CHANGE_DETECTION_SENSITIVITY_LOW }, 0, 0, VE, "scene_change_sensitivity" },
150  { "medium", "medium scene change dectection sensitivity", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_SCENE_CHANGE_DETECTION_SENSITIVITY_MEDIUM }, 0, 0, VE, "scene_change_sensitivity" },
151  { "high", "high scene change dectection sensitivity", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_SCENE_CHANGE_DETECTION_SENSITIVITY_HIGH }, 0, 0, VE, "scene_change_sensitivity" },
152 
153  { "pa_static_scene_detection_enable", "Enable static scene detection", OFFSET(pa_static_scene_detection), AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE },
154 
155  { "pa_static_scene_detection_sensitivity", "Set the sensitivity of static scene detection", OFFSET(pa_static_scene_detection_sensitivity), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, AMF_PA_STATIC_SCENE_DETECTION_SENSITIVITY_HIGH, VE , "static_scene_sensitivity" },
156  { "low", "low static scene dectection sensitivity", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_STATIC_SCENE_DETECTION_SENSITIVITY_LOW }, 0, 0, VE, "static_scene_sensitivity" },
157  { "medium", "medium static scene dectection sensitivity", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_STATIC_SCENE_DETECTION_SENSITIVITY_MEDIUM }, 0, 0, VE, "static_scene_sensitivity" },
158  { "high", "high static scene dectection sensitivity", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_STATIC_SCENE_DETECTION_SENSITIVITY_HIGH }, 0, 0, VE, "static_scene_sensitivity" },
159 
160  { "pa_initial_qp_after_scene_change", "The QP value that is used immediately after a scene change", OFFSET(pa_initial_qp), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 51, VE },
161  { "pa_max_qp_before_force_skip", "The QP threshold to allow a skip frame", OFFSET(pa_max_qp), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, 51, VE },
162 
163  { "pa_caq_strength", "Content Adaptive Quantization strength", OFFSET(pa_caq_strength), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, AMF_PA_CAQ_STRENGTH_HIGH, VE , "caq_strength" },
164  { "low", "low Content Adaptive Quantization strength", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_CAQ_STRENGTH_LOW }, 0, 0, VE, "caq_strength" },
165  { "medium", "medium Content Adaptive Quantization strength", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_CAQ_STRENGTH_MEDIUM }, 0, 0, VE, "caq_strength" },
166  { "high", "high Content Adaptive Quantization strength", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_CAQ_STRENGTH_HIGH }, 0, 0, VE, "caq_strength" },
167 
168  { "pa_frame_sad_enable", "Enable Frame SAD algorithm", OFFSET(pa_frame_sad), AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE },
169  { "pa_ltr_enable", "Enable long term reference frame management", OFFSET(pa_ltr), AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE },
170  { "pa_lookahead_buffer_depth", "Sets the PA lookahead buffer size", OFFSET(pa_lookahead_buffer_depth), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, MAX_LOOKAHEAD_DEPTH, VE },
171 
172  { "pa_paq_mode", "Sets the perceptual adaptive quantization mode", OFFSET(pa_paq_mode), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, AMF_PA_PAQ_MODE_CAQ, VE , "paq_mode" },
173  { "none", "no perceptual adaptive quantization", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_PAQ_MODE_NONE }, 0, 0, VE, "paq_mode" },
174  { "caq", "caq perceptual adaptive quantization", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_PAQ_MODE_CAQ }, 0, 0, VE, "paq_mode" },
175 
176  { "pa_taq_mode", "Sets the temporal adaptive quantization mode", OFFSET(pa_taq_mode), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, AMF_PA_TAQ_MODE_2, VE , "taq_mode" },
177  { "none", "no temporal adaptive quantization", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_TAQ_MODE_NONE }, 0, 0, VE, "taq_mode" },
178  { "1", "temporal adaptive quantization mode 1", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_TAQ_MODE_1 }, 0, 0, VE, "taq_mode" },
179  { "2", "temporal adaptive quantization mode 2", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_TAQ_MODE_2 }, 0, 0, VE, "taq_mode" },
180 
181  { "pa_high_motion_quality_boost_mode", "Sets the PA high motion quality boost mode", OFFSET(pa_high_motion_quality_boost_mode), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, AMF_PA_HIGH_MOTION_QUALITY_BOOST_MODE_AUTO, VE , "high_motion_quality_boost_mode" },
182  { "none", "no high motion quality boost", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_HIGH_MOTION_QUALITY_BOOST_MODE_NONE }, 0, 0, VE, "high_motion_quality_boost_mode" },
183  { "auto", "auto high motion quality boost", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_PA_HIGH_MOTION_QUALITY_BOOST_MODE_AUTO }, 0, 0, VE, "high_motion_quality_boost_mode" },
184 
185  { "pa_adaptive_mini_gop", "Enable Adaptive MiniGOP", OFFSET(pa_adaptive_mini_gop), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
186  { NULL }
187 };
188 
189 static av_cold int amf_encode_init_h264(AVCodecContext *avctx)
190 {
191  int ret = 0;
192  AMF_RESULT res = AMF_OK;
193  AmfContext *ctx = avctx->priv_data;
194  AMFVariantStruct var = { 0 };
195  amf_int64 profile = 0;
196  amf_int64 profile_level = 0;
197  AMFBuffer *buffer;
198  AMFGuid guid;
199  AMFRate framerate;
200  AMFSize framesize = AMFConstructSize(avctx->width, avctx->height);
201  int deblocking_filter = (avctx->flags & AV_CODEC_FLAG_LOOP_FILTER) ? 1 : 0;
202 
203  if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
204  framerate = AMFConstructRate(avctx->framerate.num, avctx->framerate.den);
205  } else {
206 FF_DISABLE_DEPRECATION_WARNINGS
207  framerate = AMFConstructRate(avctx->time_base.den, avctx->time_base.num
208 #if FF_API_TICKS_PER_FRAME
209  * avctx->ticks_per_frame
210 #endif
211  );
212 FF_ENABLE_DEPRECATION_WARNINGS
213  }
214 
215  if ((ret = ff_amf_encode_init(avctx)) != 0)
216  return ret;
217 
218  // Static parameters
219  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_USAGE, ctx->usage);
220 
221  AMF_ASSIGN_PROPERTY_SIZE(res, ctx->encoder, AMF_VIDEO_ENCODER_FRAMESIZE, framesize);
222 
223  AMF_ASSIGN_PROPERTY_RATE(res, ctx->encoder, AMF_VIDEO_ENCODER_FRAMERATE, framerate);
224 
225  switch (avctx->profile) {
226  case AV_PROFILE_H264_BASELINE:
227  profile = AMF_VIDEO_ENCODER_PROFILE_BASELINE;
228  break;
229  case AV_PROFILE_H264_MAIN:
230  profile = AMF_VIDEO_ENCODER_PROFILE_MAIN;
231  break;
232  case AV_PROFILE_H264_HIGH:
233  profile = AMF_VIDEO_ENCODER_PROFILE_HIGH;
234  break;
235  case AV_PROFILE_H264_CONSTRAINED_BASELINE:
236  profile = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_BASELINE;
237  break;
238  case (AV_PROFILE_H264_HIGH | AV_PROFILE_H264_CONSTRAINED):
239  profile = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_HIGH;
240  break;
241  }
242  if (profile == 0) {
243  profile = ctx->profile;
244  }
245 
246  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PROFILE, profile);
247 
248  profile_level = avctx->level;
249  if (profile_level == AV_LEVEL_UNKNOWN) {
250  profile_level = ctx->level;
251  }
252  if (profile_level != 0) {
253  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PROFILE_LEVEL, profile_level);
254  }
255 
256  // Maximum Reference Frames
257  if (avctx->refs != -1) {
258  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_NUM_REFRAMES, avctx->refs);
259  }
260  if (avctx->sample_aspect_ratio.den && avctx->sample_aspect_ratio.num) {
261  AMFRatio ratio = AMFConstructRatio(avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
262  AMF_ASSIGN_PROPERTY_RATIO(res, ctx->encoder, AMF_VIDEO_ENCODER_ASPECT_RATIO, ratio);
263  }
264 
265  /// Color Range (Partial/TV/MPEG or Full/PC/JPEG)
266  if (avctx->color_range == AVCOL_RANGE_JPEG) {
267  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_FULL_RANGE_COLOR, 1);
268  }
269 
270  // autodetect rate control method
271  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_UNKNOWN) {
272  if (ctx->qp_i != -1 || ctx->qp_p != -1 || ctx->qp_b != -1) {
273  ctx->rate_control_mode = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP;
274  av_log(ctx, AV_LOG_DEBUG, "Rate control turned to CQP\n");
275  } else if (avctx->rc_max_rate > 0 ) {
276  ctx->rate_control_mode = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR;
277  av_log(ctx, AV_LOG_DEBUG, "Rate control turned to Peak VBR\n");
278  } else {
279  ctx->rate_control_mode = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CBR;
280  av_log(ctx, AV_LOG_DEBUG, "Rate control turned to CBR\n");
281  }
282  }
283 
284  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP) {
285  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PREENCODE_ENABLE, AMF_VIDEO_ENCODER_PREENCODE_DISABLED);
286  if (ctx->preencode)
287  av_log(ctx, AV_LOG_WARNING, "Preencode is not supported by cqp Rate Control Method, automatically disabled\n");
288  } else {
289  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PREENCODE_ENABLE, ctx->preencode);
290  }
291 
292  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_QUALITY_VBR) {
293  if (ctx->qvbr_quality_level != -1) {
294  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QVBR_QUALITY_LEVEL, ctx->qvbr_quality_level);
295  }
296  }
297 
298  if (ctx->hw_high_motion_quality_boost != -1) {
299  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HIGH_MOTION_QUALITY_BOOST_ENABLE, ((ctx->hw_high_motion_quality_boost == 0) ? false : true));
300  }
301 
302  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QUALITY_PRESET, ctx->quality);
303 
304  // Dynamic parmaters
305  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD, ctx->rate_control_mode);
306 
307  /// VBV Buffer
308  if (avctx->rc_buffer_size != 0) {
309  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_VBV_BUFFER_SIZE, avctx->rc_buffer_size);
310  if (avctx->rc_initial_buffer_occupancy != 0) {
311  int amf_buffer_fullness = avctx->rc_initial_buffer_occupancy * 64 / avctx->rc_buffer_size;
312  if (amf_buffer_fullness > 64)
313  amf_buffer_fullness = 64;
314  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_INITIAL_VBV_BUFFER_FULLNESS, amf_buffer_fullness);
315  }
316  }
317  /// Maximum Access Unit Size
318  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_AU_SIZE, ctx->max_au_size);
319 
320  if (ctx->max_au_size)
321  ctx->enforce_hrd = 1;
322 
323  // QP Minimum / Maximum
324  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP) {
325  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MIN_QP, 0);
326  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_QP, 51);
327  } else {
328  if (avctx->qmin != -1) {
329  int qval = avctx->qmin > 51 ? 51 : avctx->qmin;
330  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MIN_QP, qval);
331  }
332  if (avctx->qmax != -1) {
333  int qval = avctx->qmax > 51 ? 51 : avctx->qmax;
334  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_QP, qval);
335  }
336  }
337  // QP Values
338  if (ctx->qp_i != -1)
339  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QP_I, ctx->qp_i);
340  if (ctx->qp_p != -1)
341  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QP_P, ctx->qp_p);
342  if (ctx->qp_b != -1)
343  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QP_B, ctx->qp_b);
344 
345  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_TARGET_BITRATE, avctx->bit_rate);
346 
347  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CBR) {
348  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PEAK_BITRATE, avctx->bit_rate);
349  }
350  if (avctx->rc_max_rate) {
351  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PEAK_BITRATE, avctx->rc_max_rate);
352  } else if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR) {
353  av_log(ctx, AV_LOG_WARNING, "rate control mode is PEAK_CONSTRAINED_VBR but rc_max_rate is not set\n");
354  }
355 
356  if (ctx->preanalysis != -1) {
357  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_PRE_ANALYSIS_ENABLE, !!((ctx->preanalysis == 0) ? false : true));
358  }
359 
360  res = ctx->encoder->pVtbl->GetProperty(ctx->encoder, AMF_VIDEO_ENCODER_PRE_ANALYSIS_ENABLE, &var);
361  if ((int)var.int64Value)
362  {
363  if (ctx->pa_activity_type != -1) {
364  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_PA_ACTIVITY_TYPE, ctx->pa_activity_type);
365  }
366  if (ctx->pa_scene_change_detection != -1) {
367  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_PA_SCENE_CHANGE_DETECTION_ENABLE, ((ctx->pa_scene_change_detection == 0) ? false : true));
368  }
369  if (ctx->pa_scene_change_detection_sensitivity != -1) {
370  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_PA_SCENE_CHANGE_DETECTION_SENSITIVITY, ctx->pa_scene_change_detection_sensitivity);
371  }
372  if (ctx->pa_static_scene_detection != -1) {
373  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_PA_STATIC_SCENE_DETECTION_ENABLE, ((ctx->pa_static_scene_detection == 0) ? false : true));
374  }
375  if (ctx->pa_static_scene_detection_sensitivity != -1) {
376  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_PA_STATIC_SCENE_DETECTION_SENSITIVITY, ctx->pa_static_scene_detection_sensitivity);
377  }
378  if (ctx->pa_initial_qp != -1) {
379  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_PA_INITIAL_QP_AFTER_SCENE_CHANGE, ctx->pa_initial_qp);
380  }
381  if (ctx->pa_max_qp != -1) {
382  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_PA_MAX_QP_BEFORE_FORCE_SKIP, ctx->pa_max_qp);
383  }
384  if (ctx->pa_caq_strength != -1) {
385  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_PA_CAQ_STRENGTH, ctx->pa_caq_strength);
386  }
387  if (ctx->pa_frame_sad != -1) {
388  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_PA_FRAME_SAD_ENABLE, ((ctx->pa_frame_sad == 0) ? false : true));
389  }
390  if (ctx->pa_paq_mode != -1) {
391  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_PA_PAQ_MODE, ctx->pa_paq_mode);
392  }
393  if (ctx->pa_taq_mode != -1) {
394  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_PA_TAQ_MODE, ctx->pa_taq_mode);
395  }
396  if (ctx->pa_adaptive_mini_gop != -1) {
397  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_ADAPTIVE_MINIGOP, ((ctx->pa_adaptive_mini_gop == 0) ? false : true));
398  }
399  if (ctx->pa_ltr != -1) {
400  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_PA_LTR_ENABLE, ((ctx->pa_ltr == 0) ? false : true));
401  }
402  if (ctx->pa_lookahead_buffer_depth != -1) {
403  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_PA_LOOKAHEAD_BUFFER_DEPTH, ctx->pa_lookahead_buffer_depth);
404  }
405  if (ctx->pa_high_motion_quality_boost_mode != -1) {
406  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_PA_HIGH_MOTION_QUALITY_BOOST_MODE, ctx->pa_high_motion_quality_boost_mode);
407  }
408  }
409 
410  // B-Frames
411  if (ctx->max_consecutive_b_frames != -1) {
412  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_CONSECUTIVE_BPICTURES, ctx->max_consecutive_b_frames);
413  if (ctx->max_b_frames != -1) {
414  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_B_PIC_PATTERN, ctx->max_b_frames);
415  if (res != AMF_OK) {
416  res = ctx->encoder->pVtbl->GetProperty(ctx->encoder, AMF_VIDEO_ENCODER_B_PIC_PATTERN, &var);
417  av_log(ctx, AV_LOG_WARNING, "B-frames=%d is not supported by this GPU, switched to %d\n",
418  ctx->max_b_frames, (int)var.int64Value);
419  ctx->max_b_frames = (int)var.int64Value;
420  }
421  if (ctx->max_consecutive_b_frames < ctx->max_b_frames) {
422  av_log(ctx, AVERROR_BUG, "Maxium B frames needs to be greater than the specified B frame count.\n");
423  }
424  }
425  }
426  else {
427  if (ctx->max_b_frames != -1) {
428  av_log(ctx, AVERROR_BUG, "Maxium number of B frames needs to be specified.\n");
429  }
430  }
431  res = ctx->encoder->pVtbl->GetProperty(ctx->encoder, AMF_VIDEO_ENCODER_B_PIC_PATTERN, &var);
432  if ((int)var.int64Value) {
433  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_B_PIC_DELTA_QP, ctx->b_frame_delta_qp);
434  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_B_REFERENCE_ENABLE, !!ctx->b_frame_ref);
435  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_REF_B_PIC_DELTA_QP, ctx->ref_b_frame_delta_qp);
436  }
437 
438  // Initialize Encoder
439  res = ctx->encoder->pVtbl->Init(ctx->encoder, ctx->format, avctx->width, avctx->height);
440  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "encoder->Init() failed with error %d\n", res);
441 
442  // Enforce HRD, Filler Data, VBAQ, Frame Skipping, Deblocking Filter
443  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_ENFORCE_HRD, !!ctx->enforce_hrd);
444  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_FILLER_DATA_ENABLE, !!ctx->filler_data);
445  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_RATE_CONTROL_SKIP_FRAME_ENABLE, !!ctx->skip_frame);
446  if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP) {
447  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_ENABLE_VBAQ, 0);
448  if (ctx->enable_vbaq)
449  av_log(ctx, AV_LOG_WARNING, "VBAQ is not supported by cqp Rate Control Method, automatically disabled\n");
450  } else {
451  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_ENABLE_VBAQ, !!ctx->enable_vbaq);
452  }
453  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_DE_BLOCKING_FILTER, !!deblocking_filter);
454 
455  // Keyframe Interval
456  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_IDR_PERIOD, avctx->gop_size);
457 
458  // Header Insertion Spacing
459  if (ctx->header_spacing >= 0)
460  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEADER_INSERTION_SPACING, ctx->header_spacing);
461 
462  // Intra-Refresh, Slicing
463  if (ctx->intra_refresh_mb > 0)
464  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_INTRA_REFRESH_NUM_MBS_PER_SLOT, ctx->intra_refresh_mb);
465  if (avctx->slices > 1)
466  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_SLICES_PER_FRAME, avctx->slices);
467 
468  // Coding
469  if (ctx->coding_mode != 0)
470  AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_CABAC_ENABLE, ctx->coding_mode);
471 
472  // Motion Estimation
473  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_MOTION_HALF_PIXEL, !!ctx->me_half_pel);
474  AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_MOTION_QUARTERPIXEL, !!ctx->me_quarter_pel);
475 
476  // fill extradata
477  res = AMFVariantInit(&var);
478  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "AMFVariantInit() failed with error %d\n", res);
479 
480  res = ctx->encoder->pVtbl->GetProperty(ctx->encoder, AMF_VIDEO_ENCODER_EXTRADATA, &var);
481  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "GetProperty(AMF_VIDEO_ENCODER_EXTRADATA) failed with error %d\n", res);
482  AMF_RETURN_IF_FALSE(ctx, var.pInterface != NULL, AVERROR_BUG, "GetProperty(AMF_VIDEO_ENCODER_EXTRADATA) returned NULL\n");
483 
484  guid = IID_AMFBuffer();
485 
486  res = var.pInterface->pVtbl->QueryInterface(var.pInterface, &guid, (void**)&buffer); // query for buffer interface
487  if (res != AMF_OK) {
488  var.pInterface->pVtbl->Release(var.pInterface);
489  }
490  AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "QueryInterface(IID_AMFBuffer) failed with error %d\n", res);
491 
492  avctx->extradata_size = (int)buffer->pVtbl->GetSize(buffer);
493  avctx->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
494  if (!avctx->extradata) {
495  buffer->pVtbl->Release(buffer);
496  var.pInterface->pVtbl->Release(var.pInterface);
497  return AVERROR(ENOMEM);
498  }
499  memcpy(avctx->extradata, buffer->pVtbl->GetNative(buffer), avctx->extradata_size);
500 
501  buffer->pVtbl->Release(buffer);
502  var.pInterface->pVtbl->Release(var.pInterface);
503 
504  return 0;
505 }
506 
507 static const FFCodecDefault defaults[] = {
508  { "refs", "-1" },
509  { "aspect", "0" },
510  { "qmin", "-1" },
511  { "qmax", "-1" },
512  { "b", "2M" },
513  { "g", "250" },
514  { "slices", "1" },
515  { "flags", "+loop"},
516  { NULL },
517 };
518 
519 static const AVClass h264_amf_class = {
520  .class_name = "h264_amf",
521  .item_name = av_default_item_name,
522  .option = options,
523  .version = LIBAVUTIL_VERSION_INT,
524 };
525 
526 const FFCodec ff_h264_amf_encoder = {
527  .p.name = "h264_amf",
528  CODEC_LONG_NAME("AMD AMF H.264 Encoder"),
529  .p.type = AVMEDIA_TYPE_VIDEO,
530  .p.id = AV_CODEC_ID_H264,
531  .init = amf_encode_init_h264,
532  FF_CODEC_RECEIVE_PACKET_CB(ff_amf_receive_packet),
533  .close = ff_amf_encode_close,
534  .priv_data_size = sizeof(AmfContext),
535  .p.priv_class = &h264_amf_class,
536  .defaults = defaults,
537  .p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE |
538  AV_CODEC_CAP_DR1,
539  .caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE |
540  FF_CODEC_CAP_INIT_CLEANUP,
541  .p.pix_fmts = ff_amf_pix_fmts,
542  .p.wrapper_name = "amf",
543  .hw_configs = ff_amfenc_hw_configs,
544 };
FF_ENABLE_DEPRECATION_WARNINGS
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:73
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
level
uint8_t level
Definition: svq3.c:204
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:42
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:145
AV_PROFILE_H264_MAIN
#define AV_PROFILE_H264_MAIN
Definition: defs.h:111
AVCOL_RANGE_JPEG
@ AVCOL_RANGE_JPEG
Full range content.
Definition: pixfmt.h:673
internal.h
AVOption
AVOption.
Definition: opt.h:251
FF_CODEC_CAP_NOT_INIT_THREADSAFE
#define FF_CODEC_CAP_NOT_INIT_THREADSAFE
The codec is not known to be init-threadsafe (i.e.
Definition: codec_internal.h:34
FFCodec
Definition: codec_internal.h:127
AMF_RETURN_IF_FALSE
#define AMF_RETURN_IF_FALSE(avctx, exp, ret_value,...)
Error handling helper.
Definition: amfenc.h:176
AVCodecContext::qmax
int qmax
maximum quantizer
Definition: avcodec.h:1255
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:1803
FFCodecDefault
Definition: codec_internal.h:97
FFCodec::p
AVCodec p
The public AVCodec.
Definition: codec_internal.h:131
ff_amf_encode_close
int av_cold ff_amf_encode_close(AVCodecContext *avctx)
Common encoder termination function.
Definition: amfenc.c:375
AVCodecContext::refs
int refs
number of reference frames
Definition: avcodec.h:1001
ff_amf_encode_init
int ff_amf_encode_init(AVCodecContext *avctx)
Common encoder initization function.
Definition: amfenc.c:501
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:521
AV_CODEC_FLAG_LOOP_FILTER
#define AV_CODEC_FLAG_LOOP_FILTER
loop filter.
Definition: avcodec.h:314
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:1312
AVCodecContext::extradata_size
int extradata_size
Definition: avcodec.h:543
h264_amf_class
static const AVClass h264_amf_class
Definition: amfenc_h264.c:519
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:1284
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition: codec_id.h:79
CODEC_LONG_NAME
#define CODEC_LONG_NAME(str)
Definition: codec_internal.h:272
AVCodecContext::rc_buffer_size
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:1269
framerate
float framerate
Definition: av1_levels.c:29
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:1039
AV_LEVEL_UNKNOWN
#define AV_LEVEL_UNKNOWN
Definition: defs.h:196
FF_CODEC_RECEIVE_PACKET_CB
#define FF_CODEC_RECEIVE_PACKET_CB(func)
Definition: codec_internal.h:321
AVCodecContext::bit_rate
int64_t bit_rate
the average bitrate
Definition: avcodec.h:491
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:586
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:189
VE
#define VE
Definition: amfenc_h264.c:28
AVCodecContext::level
int level
Encoding level descriptor.
Definition: avcodec.h:1740
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:563
aud
static int FUNC() aud(CodedBitstreamContext *ctx, RWContext *rw, H264RawAUD *current)
Definition: cbs_h264_syntax_template.c:841
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
defaults
static const FFCodecDefault defaults[]
Definition: amfenc_h264.c:507
AVCodecContext::gop_size
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:643
codec_internal.h
ff_amf_pix_fmts
enum AVPixelFormat ff_amf_pix_fmts[]
Supported formats.
Definition: amfenc.c:54
FF_API_TICKS_PER_FRAME
#define FF_API_TICKS_PER_FRAME
Definition: version_major.h:50
OFFSET
#define OFFSET(x)
Definition: amfenc_h264.c:27
AVCodecContext::extradata
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:542
internal.h
ff_amfenc_hw_configs
const AVCodecHWConfigInternal *const ff_amfenc_hw_configs[]
Definition: amfenc.c:788
ff_h264_amf_encoder
const FFCodec ff_h264_amf_encoder
Definition: amfenc_h264.c:526
options
static const AVOption options[]
Definition: amfenc_h264.c:30
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:254
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:194
profile
int profile
Definition: mxfenc.c:2115
AVCodecContext::height
int height
Definition: avcodec.h:621
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_PROFILE_H264_BASELINE
#define AV_PROFILE_H264_BASELINE
Definition: defs.h:109
AV_PROFILE_H264_CONSTRAINED
#define AV_PROFILE_H264_CONSTRAINED
Definition: defs.h:106
AV_INPUT_BUFFER_PADDING_SIZE
#define AV_INPUT_BUFFER_PADDING_SIZE
Definition: defs.h:40
AVCodecContext
main external API structure.
Definition: avcodec.h:441
AV_PROFILE_H264_HIGH
#define AV_PROFILE_H264_HIGH
Definition: defs.h:113
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:1248
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:1596
AVCodecContext::ticks_per_frame
attribute_deprecated int ticks_per_frame
For some codecs, the time base is closer to the field rate than the frame rate.
Definition: avcodec.h:579
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:76
amfenc.h
AV_PROFILE_H264_CONSTRAINED_BASELINE
#define AV_PROFILE_H264_CONSTRAINED_BASELINE
Definition: defs.h:110
FF_DISABLE_DEPRECATION_WARNINGS
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:72
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AVCodecContext::slices
int slices
Number of slices.
Definition: avcodec.h:1055
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:468
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:621
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:49
int
int
Definition: ffmpeg_filter.c:368
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
MAX_LOOKAHEAD_DEPTH
#define MAX_LOOKAHEAD_DEPTH
Definition: amfenc.h:33
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:822
Generated on Thu Apr 18 2024 22:41:41 for FFmpeg by   doxygen 1.8.17