1 /*
2 * OpenH264 video encoder
3 * Copyright (C) 2014 Martin Storsjo
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include <wels/codec_api.h>
23 #include <wels/codec_ver.h>
24
25 #include "libavutil/attributes.h"
26 #include "libavutil/common.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/internal.h"
29 #include "libavutil/intreadwrite.h"
30 #include "libavutil/mathematics.h"
31
32 #include "avcodec.h"
33 #include "codec_internal.h"
34 #include "encode.h"
35 #include "internal.h"
36 #include "libopenh264.h"
37
38 #if !OPENH264_VER_AT_LEAST(1, 6)
39 #define SM_SIZELIMITED_SLICE SM_DYN_SLICE
40 #endif
41
42 #define TARGET_BITRATE_DEFAULT 2*1000*1000
43
44 typedef struct SVCContext {
45 const AVClass *av_class;
46 ISVCEncoder *encoder;
47 int slice_mode;
48 int loopfilter;
49 int profile;
50 int max_nal_size;
51 int skip_frames;
52 int skipped;
53 #if FF_API_OPENH264_CABAC
54 int cabac; // deprecated
55 #endif
56 int coder;
57
58 // rate control mode
59 int rc_mode;
60 } SVCContext;
61
62 #define OFFSET(x) offsetof(SVCContext, x)
63 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
64 #define DEPRECATED AV_OPT_FLAG_DEPRECATED
65 static const AVOption options[] = {
66 #if FF_API_OPENH264_SLICE_MODE
67 #if OPENH264_VER_AT_LEAST(1, 6)
68 { "slice_mode", "set slice mode, use slices/max_nal_size", OFFSET(slice_mode), AV_OPT_TYPE_INT, { .i64 = SM_FIXEDSLCNUM_SLICE }, SM_SINGLE_SLICE, SM_RESERVED, VE|DEPRECATED, "slice_mode" },
69 #else
70 { "slice_mode", "set slice mode, use slices/max_nal_size", OFFSET(slice_mode), AV_OPT_TYPE_INT, { .i64 = SM_AUTO_SLICE }, SM_SINGLE_SLICE, SM_RESERVED, VE|DEPRECATED, "slice_mode" },
71 #endif
72 { "fixed", "a fixed number of slices", 0, AV_OPT_TYPE_CONST, { .i64 = SM_FIXEDSLCNUM_SLICE }, 0, 0, VE, "slice_mode" },
73 #if OPENH264_VER_AT_LEAST(1, 6)
74 { "dyn", "Size limited (compatibility name)", 0, AV_OPT_TYPE_CONST, { .i64 = SM_SIZELIMITED_SLICE }, 0, 0, VE, "slice_mode" },
75 { "sizelimited", "Size limited", 0, AV_OPT_TYPE_CONST, { .i64 = SM_SIZELIMITED_SLICE }, 0, 0, VE, "slice_mode" },
76 #else
77 { "rowmb", "one slice per row of macroblocks", 0, AV_OPT_TYPE_CONST, { .i64 = SM_ROWMB_SLICE }, 0, 0, VE, "slice_mode" },
78 { "auto", "automatic number of slices according to number of threads", 0, AV_OPT_TYPE_CONST, { .i64 = SM_AUTO_SLICE }, 0, 0, VE, "slice_mode" },
79 { "dyn", "Dynamic slicing", 0, AV_OPT_TYPE_CONST, { .i64 = SM_DYN_SLICE }, 0, 0, VE, "slice_mode" },
80 #endif
81 #endif
82 { "loopfilter", "enable loop filter", OFFSET(loopfilter), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE },
83 { "profile", "set profile restrictions", OFFSET(profile), AV_OPT_TYPE_INT, { .i64 = FF_PROFILE_UNKNOWN }, FF_PROFILE_UNKNOWN, 0xffff, VE, "profile" },
84 #define PROFILE(name, value) name, NULL, 0, AV_OPT_TYPE_CONST, { .i64 = value }, 0, 0, VE, "profile"
85 { PROFILE("constrained_baseline", FF_PROFILE_H264_CONSTRAINED_BASELINE) },
86 { PROFILE("main", FF_PROFILE_H264_MAIN) },
87 { PROFILE("high", FF_PROFILE_H264_HIGH) },
88 #undef PROFILE
89 { "max_nal_size", "set maximum NAL size in bytes", OFFSET(max_nal_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
90 { "allow_skip_frames", "allow skipping frames to hit the target bitrate", OFFSET(skip_frames), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
91 #if FF_API_OPENH264_CABAC
92 { "cabac", "Enable cabac(deprecated, use coder)", OFFSET(cabac), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE|DEPRECATED },
93 #endif
94 { "coder", "Coder type", OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, "coder" },
95 { "default", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, INT_MIN, INT_MAX, VE, "coder" },
96 { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "coder" },
97 { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
98 { "vlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, VE, "coder" },
99 { "ac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "coder" },
100
101 { "rc_mode", "Select rate control mode", OFFSET(rc_mode), AV_OPT_TYPE_INT, { .i64 = RC_QUALITY_MODE }, RC_OFF_MODE, RC_TIMESTAMP_MODE, VE, "rc_mode" },
102 { "off", "bit rate control off", 0, AV_OPT_TYPE_CONST, { .i64 = RC_OFF_MODE }, 0, 0, VE, "rc_mode" },
103 { "quality", "quality mode", 0, AV_OPT_TYPE_CONST, { .i64 = RC_QUALITY_MODE }, 0, 0, VE, "rc_mode" },
104 { "bitrate", "bitrate mode", 0, AV_OPT_TYPE_CONST, { .i64 = RC_BITRATE_MODE }, 0, 0, VE, "rc_mode" },
105 { "buffer", "using buffer status to adjust the video quality (no bitrate control)", 0, AV_OPT_TYPE_CONST, { .i64 = RC_BUFFERBASED_MODE }, 0, 0, VE, "rc_mode" },
106 #if OPENH264_VER_AT_LEAST(1, 4)
107 { "timestamp", "bit rate control based on timestamp", 0, AV_OPT_TYPE_CONST, { .i64 = RC_TIMESTAMP_MODE }, 0, 0, VE, "rc_mode" },
108 #endif
109
110 { NULL }
111 };
112
113 static const AVClass class = {
114 .class_name = "libopenh264enc",
115 .item_name = av_default_item_name,
116 .option = options,
117 .version = LIBAVUTIL_VERSION_INT,
118 };
119
svc_encode_close(AVCodecContext * avctx)120 static av_cold int svc_encode_close(AVCodecContext *avctx)
121 {
122 SVCContext *s = avctx->priv_data;
123
124 if (s->encoder)
125 WelsDestroySVCEncoder(s->encoder);
126 if (s->skipped > 0)
127 av_log(avctx, AV_LOG_WARNING, "%d frames skipped\n", s->skipped);
128 return 0;
129 }
130
svc_encode_init(AVCodecContext * avctx)131 static av_cold int svc_encode_init(AVCodecContext *avctx)
132 {
133 SVCContext *s = avctx->priv_data;
134 SEncParamExt param = { 0 };
135 int err;
136 int log_level;
137 WelsTraceCallback callback_function;
138 AVCPBProperties *props;
139
140 if ((err = ff_libopenh264_check_version(avctx)) < 0)
141 return AVERROR_ENCODER_NOT_FOUND;
142
143 if (WelsCreateSVCEncoder(&s->encoder)) {
144 av_log(avctx, AV_LOG_ERROR, "Unable to create encoder\n");
145 return AVERROR_UNKNOWN;
146 }
147
148 // Pass all libopenh264 messages to our callback, to allow ourselves to filter them.
149 log_level = WELS_LOG_DETAIL;
150 (*s->encoder)->SetOption(s->encoder, ENCODER_OPTION_TRACE_LEVEL, &log_level);
151
152 // Set the logging callback function to one that uses av_log() (see implementation above).
153 callback_function = (WelsTraceCallback) ff_libopenh264_trace_callback;
154 (*s->encoder)->SetOption(s->encoder, ENCODER_OPTION_TRACE_CALLBACK, &callback_function);
155
156 // Set the AVCodecContext as the libopenh264 callback context so that it can be passed to av_log().
157 (*s->encoder)->SetOption(s->encoder, ENCODER_OPTION_TRACE_CALLBACK_CONTEXT, &avctx);
158
159 (*s->encoder)->GetDefaultParams(s->encoder, ¶m);
160
161 if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
162 param.fMaxFrameRate = av_q2d(avctx->framerate);
163 } else {
164 if (avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) {
165 av_log(avctx, AV_LOG_ERROR,
166 "Could not set framerate for libopenh264enc: integer overflow\n");
167 return AVERROR(EINVAL);
168 }
169 param.fMaxFrameRate = 1.0 / av_q2d(avctx->time_base) / FFMAX(avctx->ticks_per_frame, 1);
170 }
171 param.iPicWidth = avctx->width;
172 param.iPicHeight = avctx->height;
173 param.iTargetBitrate = avctx->bit_rate > 0 ? avctx->bit_rate : TARGET_BITRATE_DEFAULT;
174 param.iMaxBitrate = FFMAX(avctx->rc_max_rate, avctx->bit_rate);
175 param.iRCMode = s->rc_mode;
176 if (avctx->qmax >= 0)
177 param.iMaxQp = av_clip(avctx->qmax, 1, 51);
178 if (avctx->qmin >= 0)
179 param.iMinQp = av_clip(avctx->qmin, 1, param.iMaxQp);
180 param.iTemporalLayerNum = 1;
181 param.iSpatialLayerNum = 1;
182 param.bEnableDenoise = 0;
183 param.bEnableBackgroundDetection = 1;
184 param.bEnableAdaptiveQuant = 1;
185 param.bEnableFrameSkip = s->skip_frames;
186 param.bEnableLongTermReference = 0;
187 param.iLtrMarkPeriod = 30;
188 if (avctx->gop_size >= 0)
189 param.uiIntraPeriod = avctx->gop_size;
190 #if OPENH264_VER_AT_LEAST(1, 4)
191 param.eSpsPpsIdStrategy = CONSTANT_ID;
192 #else
193 param.bEnableSpsPpsIdAddition = 0;
194 #endif
195 param.bPrefixNalAddingCtrl = 0;
196 param.iLoopFilterDisableIdc = !s->loopfilter;
197 param.iEntropyCodingModeFlag = s->coder >= 0 ? s->coder : 1;
198 param.iMultipleThreadIdc = avctx->thread_count;
199
200 /* Allow specifying the libopenh264 profile through AVCodecContext. */
201 if (FF_PROFILE_UNKNOWN == s->profile &&
202 FF_PROFILE_UNKNOWN != avctx->profile)
203 switch (avctx->profile) {
204 case FF_PROFILE_H264_HIGH:
205 case FF_PROFILE_H264_MAIN:
206 case FF_PROFILE_H264_CONSTRAINED_BASELINE:
207 s->profile = avctx->profile;
208 break;
209 default:
210 av_log(avctx, AV_LOG_WARNING,
211 "Unsupported avctx->profile: %d.\n", avctx->profile);
212 break;
213 }
214
215 if (s->profile == FF_PROFILE_UNKNOWN && s->coder >= 0)
216 s->profile = s->coder == 0 ? FF_PROFILE_H264_CONSTRAINED_BASELINE :
217 #if OPENH264_VER_AT_LEAST(1, 8)
218 FF_PROFILE_H264_HIGH;
219 #else
220 FF_PROFILE_H264_MAIN;
221 #endif
222
223 switch (s->profile) {
224 case FF_PROFILE_H264_HIGH:
225 av_log(avctx, AV_LOG_VERBOSE, "Using %s, "
226 "select EProfileIdc PRO_HIGH in libopenh264.\n",
227 param.iEntropyCodingModeFlag ? "CABAC" : "CAVLC");
228 break;
229 case FF_PROFILE_H264_MAIN:
230 av_log(avctx, AV_LOG_VERBOSE, "Using %s, "
231 "select EProfileIdc PRO_MAIN in libopenh264.\n",
232 param.iEntropyCodingModeFlag ? "CABAC" : "CAVLC");
233 break;
234 case FF_PROFILE_H264_CONSTRAINED_BASELINE:
235 case FF_PROFILE_UNKNOWN:
236 s->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;
237 param.iEntropyCodingModeFlag = 0;
238 av_log(avctx, AV_LOG_VERBOSE, "Using CAVLC, "
239 "select EProfileIdc PRO_BASELINE in libopenh264.\n");
240 break;
241 default:
242 s->profile = FF_PROFILE_H264_CONSTRAINED_BASELINE;
243 param.iEntropyCodingModeFlag = 0;
244 av_log(avctx, AV_LOG_WARNING, "Unsupported profile, "
245 "select EProfileIdc PRO_BASELINE in libopenh264.\n");
246 break;
247 }
248
249 param.sSpatialLayers[0].iVideoWidth = param.iPicWidth;
250 param.sSpatialLayers[0].iVideoHeight = param.iPicHeight;
251 param.sSpatialLayers[0].fFrameRate = param.fMaxFrameRate;
252 param.sSpatialLayers[0].iSpatialBitrate = param.iTargetBitrate;
253 param.sSpatialLayers[0].iMaxSpatialBitrate = param.iMaxBitrate;
254 param.sSpatialLayers[0].uiProfileIdc = s->profile;
255
256 #if OPENH264_VER_AT_LEAST(1, 7)
257 if (avctx->sample_aspect_ratio.num && avctx->sample_aspect_ratio.den) {
258 // Table E-1.
259 static const AVRational sar_idc[] = {
260 { 0, 0 }, // Unspecified (never written here).
261 { 1, 1 }, { 12, 11 }, { 10, 11 }, { 16, 11 },
262 { 40, 33 }, { 24, 11 }, { 20, 11 }, { 32, 11 },
263 { 80, 33 }, { 18, 11 }, { 15, 11 }, { 64, 33 },
264 { 160, 99 }, // Last 3 are unknown to openh264: { 4, 3 }, { 3, 2 }, { 2, 1 },
265 };
266 static const ESampleAspectRatio asp_idc[] = {
267 ASP_UNSPECIFIED,
268 ASP_1x1, ASP_12x11, ASP_10x11, ASP_16x11,
269 ASP_40x33, ASP_24x11, ASP_20x11, ASP_32x11,
270 ASP_80x33, ASP_18x11, ASP_15x11, ASP_64x33,
271 ASP_160x99,
272 };
273 int num, den, i;
274
275 av_reduce(&num, &den, avctx->sample_aspect_ratio.num,
276 avctx->sample_aspect_ratio.den, 65535);
277
278 for (i = 1; i < FF_ARRAY_ELEMS(sar_idc); i++) {
279 if (num == sar_idc[i].num &&
280 den == sar_idc[i].den)
281 break;
282 }
283 if (i == FF_ARRAY_ELEMS(sar_idc)) {
284 param.sSpatialLayers[0].eAspectRatio = ASP_EXT_SAR;
285 param.sSpatialLayers[0].sAspectRatioExtWidth = num;
286 param.sSpatialLayers[0].sAspectRatioExtHeight = den;
287 } else {
288 param.sSpatialLayers[0].eAspectRatio = asp_idc[i];
289 }
290 param.sSpatialLayers[0].bAspectRatioPresent = true;
291 } else {
292 param.sSpatialLayers[0].bAspectRatioPresent = false;
293 }
294 #endif
295
296 if ((avctx->slices > 1) && (s->max_nal_size)) {
297 av_log(avctx, AV_LOG_ERROR,
298 "Invalid combination -slices %d and -max_nal_size %d.\n",
299 avctx->slices, s->max_nal_size);
300 return AVERROR(EINVAL);
301 }
302
303 if (avctx->slices > 1)
304 s->slice_mode = SM_FIXEDSLCNUM_SLICE;
305
306 if (s->max_nal_size)
307 s->slice_mode = SM_SIZELIMITED_SLICE;
308
309 #if OPENH264_VER_AT_LEAST(1, 6)
310 param.sSpatialLayers[0].sSliceArgument.uiSliceMode = s->slice_mode;
311 param.sSpatialLayers[0].sSliceArgument.uiSliceNum = avctx->slices;
312 #else
313 param.sSpatialLayers[0].sSliceCfg.uiSliceMode = s->slice_mode;
314 param.sSpatialLayers[0].sSliceCfg.sSliceArgument.uiSliceNum = avctx->slices;
315 #endif
316 if (avctx->slices == 0 && s->slice_mode == SM_FIXEDSLCNUM_SLICE)
317 av_log(avctx, AV_LOG_WARNING, "Slice count will be set automatically\n");
318
319 if (s->slice_mode == SM_SIZELIMITED_SLICE) {
320 if (s->max_nal_size) {
321 param.uiMaxNalSize = s->max_nal_size;
322 #if OPENH264_VER_AT_LEAST(1, 6)
323 param.sSpatialLayers[0].sSliceArgument.uiSliceSizeConstraint = s->max_nal_size;
324 #else
325 param.sSpatialLayers[0].sSliceCfg.sSliceArgument.uiSliceSizeConstraint = s->max_nal_size;
326 #endif
327 } else {
328 av_log(avctx, AV_LOG_ERROR, "Invalid -max_nal_size, "
329 "specify a valid max_nal_size to use -slice_mode dyn\n");
330 return AVERROR(EINVAL);
331 }
332 }
333
334 #if OPENH264_VER_AT_LEAST(1, 6)
335 param.sSpatialLayers[0].uiVideoFormat = VF_UNDEF;
336 if (avctx->color_range != AVCOL_RANGE_UNSPECIFIED) {
337 param.sSpatialLayers[0].bVideoSignalTypePresent = true;
338 param.sSpatialLayers[0].bFullRange = (avctx->color_range == AVCOL_RANGE_JPEG);
339 }
340
341 if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED ||
342 avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
343 avctx->color_trc != AVCOL_TRC_UNSPECIFIED) {
344 param.sSpatialLayers[0].bVideoSignalTypePresent = true;
345 param.sSpatialLayers[0].bColorDescriptionPresent = true;
346 }
347
348 if (avctx->colorspace != AVCOL_SPC_UNSPECIFIED)
349 param.sSpatialLayers[0].uiColorMatrix = avctx->colorspace;
350 if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED)
351 param.sSpatialLayers[0].uiColorPrimaries = avctx->color_primaries;
352 if (avctx->color_trc != AVCOL_TRC_UNSPECIFIED)
353 param.sSpatialLayers[0].uiTransferCharacteristics = avctx->color_trc;
354 #endif
355
356 if ((*s->encoder)->InitializeExt(s->encoder, ¶m) != cmResultSuccess) {
357 av_log(avctx, AV_LOG_ERROR, "Initialize failed\n");
358 return AVERROR_UNKNOWN;
359 }
360
361 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER) {
362 SFrameBSInfo fbi = { 0 };
363 int i, size = 0;
364 (*s->encoder)->EncodeParameterSets(s->encoder, &fbi);
365 for (i = 0; i < fbi.sLayerInfo[0].iNalCount; i++)
366 size += fbi.sLayerInfo[0].pNalLengthInByte[i];
367 avctx->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
368 if (!avctx->extradata)
369 return AVERROR(ENOMEM);
370 avctx->extradata_size = size;
371 memcpy(avctx->extradata, fbi.sLayerInfo[0].pBsBuf, size);
372 }
373
374 props = ff_add_cpb_side_data(avctx);
375 if (!props)
376 return AVERROR(ENOMEM);
377 props->max_bitrate = param.iMaxBitrate;
378 props->avg_bitrate = param.iTargetBitrate;
379
380 return 0;
381 }
382
svc_encode_frame(AVCodecContext * avctx,AVPacket * avpkt,const AVFrame * frame,int * got_packet)383 static int svc_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
384 const AVFrame *frame, int *got_packet)
385 {
386 SVCContext *s = avctx->priv_data;
387 SFrameBSInfo fbi = { 0 };
388 int i, ret;
389 int encoded;
390 SSourcePicture sp = { 0 };
391 int size = 0, layer, first_layer = 0;
392 int layer_size[MAX_LAYER_NUM_OF_FRAME] = { 0 };
393
394 sp.iColorFormat = videoFormatI420;
395 for (i = 0; i < 3; i++) {
396 sp.iStride[i] = frame->linesize[i];
397 sp.pData[i] = frame->data[i];
398 }
399 sp.iPicWidth = avctx->width;
400 sp.iPicHeight = avctx->height;
401
402 if (frame->pict_type == AV_PICTURE_TYPE_I) {
403 (*s->encoder)->ForceIntraFrame(s->encoder, true);
404 }
405
406 encoded = (*s->encoder)->EncodeFrame(s->encoder, &sp, &fbi);
407 if (encoded != cmResultSuccess) {
408 av_log(avctx, AV_LOG_ERROR, "EncodeFrame failed\n");
409 return AVERROR_UNKNOWN;
410 }
411 if (fbi.eFrameType == videoFrameTypeSkip) {
412 s->skipped++;
413 av_log(avctx, AV_LOG_DEBUG, "frame skipped\n");
414 return 0;
415 }
416 first_layer = 0;
417 // Normal frames are returned with one single layer, while IDR
418 // frames have two layers, where the first layer contains the SPS/PPS.
419 // If using global headers, don't include the SPS/PPS in the returned
420 // packet - thus, only return one layer.
421 if (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)
422 first_layer = fbi.iLayerNum - 1;
423
424 for (layer = first_layer; layer < fbi.iLayerNum; layer++) {
425 for (i = 0; i < fbi.sLayerInfo[layer].iNalCount; i++)
426 layer_size[layer] += fbi.sLayerInfo[layer].pNalLengthInByte[i];
427 size += layer_size[layer];
428 }
429 av_log(avctx, AV_LOG_DEBUG, "%d slices\n", fbi.sLayerInfo[fbi.iLayerNum - 1].iNalCount);
430
431 if ((ret = ff_get_encode_buffer(avctx, avpkt, size, 0)))
432 return ret;
433
434 size = 0;
435 for (layer = first_layer; layer < fbi.iLayerNum; layer++) {
436 memcpy(avpkt->data + size, fbi.sLayerInfo[layer].pBsBuf, layer_size[layer]);
437 size += layer_size[layer];
438 }
439 avpkt->pts = frame->pts;
440 if (fbi.eFrameType == videoFrameTypeIDR)
441 avpkt->flags |= AV_PKT_FLAG_KEY;
442 *got_packet = 1;
443 return 0;
444 }
445
446 static const FFCodecDefault svc_enc_defaults[] = {
447 { "b", "0" },
448 { "g", "-1" },
449 { "qmin", "-1" },
450 { "qmax", "-1" },
451 { NULL },
452 };
453
454 const FFCodec ff_libopenh264_encoder = {
455 .p.name = "libopenh264",
456 .p.long_name = NULL_IF_CONFIG_SMALL("OpenH264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
457 .p.type = AVMEDIA_TYPE_VIDEO,
458 .p.id = AV_CODEC_ID_H264,
459 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_OTHER_THREADS,
460 .priv_data_size = sizeof(SVCContext),
461 .init = svc_encode_init,
462 FF_CODEC_ENCODE_CB(svc_encode_frame),
463 .close = svc_encode_close,
464 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP |
465 FF_CODEC_CAP_AUTO_THREADS,
466 .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P,
467 AV_PIX_FMT_NONE },
468 .defaults = svc_enc_defaults,
469 .p.priv_class = &class,
470 .p.wrapper_name = "libopenh264",
471 };
472