1 /* GStreamer Intel MSDK plugin
2 * Copyright (c) 2016, Oblong Industries, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
28 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #ifdef HAVE_CONFIG_H
33 # include <config.h>
34 #endif
35
36 #include "gstmsdkh264enc.h"
37
38 #include <gst/base/base.h>
39 #include <gst/pbutils/pbutils.h>
40
41 GST_DEBUG_CATEGORY_EXTERN (gst_msdkh264enc_debug);
42 #define GST_CAT_DEFAULT gst_msdkh264enc_debug
43
44 enum
45 {
46 PROP_CABAC = GST_MSDKENC_PROP_MAX,
47 PROP_LOW_POWER,
48 PROP_FRAME_PACKING,
49 PROP_RC_LA_DOWNSAMPLING,
50 PROP_TRELLIS,
51 PROP_MAX_SLICE_SIZE,
52 PROP_B_PYRAMID
53 };
54
55 #define PROP_CABAC_DEFAULT TRUE
56 #define PROP_LOWPOWER_DEFAULT FALSE
57 #define PROP_FRAME_PACKING_DEFAULT -1
58 #define PROP_RC_LA_DOWNSAMPLING_DEFAULT MFX_LOOKAHEAD_DS_UNKNOWN
59 #define PROP_TRELLIS_DEFAULT _MFX_TRELLIS_NONE
60 #define PROP_MAX_SLICE_SIZE_DEFAULT 0
61 #define PROP_B_PYRAMID_DEFAULT FALSE
62
63 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
64 GST_PAD_SRC,
65 GST_PAD_ALWAYS,
66 GST_STATIC_CAPS ("video/x-h264, "
67 "framerate = (fraction) [0/1, MAX], "
68 "width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], "
69 "stream-format = (string) byte-stream , alignment = (string) au , "
70 "profile = (string) { high, main, baseline, constrained-baseline }")
71 );
72
73 static GType
gst_msdkh264enc_frame_packing_get_type(void)74 gst_msdkh264enc_frame_packing_get_type (void)
75 {
76 static GType format_type = 0;
77 static const GEnumValue format_types[] = {
78 {GST_VIDEO_MULTIVIEW_FRAME_PACKING_NONE, "None (default)", "none"},
79 {GST_VIDEO_MULTIVIEW_FRAME_PACKING_SIDE_BY_SIDE, "Side by Side",
80 "side-by-side"},
81 {GST_VIDEO_MULTIVIEW_FRAME_PACKING_TOP_BOTTOM, "Top Bottom", "top-bottom"},
82 {0, NULL, NULL}
83 };
84
85 if (!format_type) {
86 format_type =
87 g_enum_register_static ("GstMsdkH264EncFramePacking", format_types);
88 }
89
90 return format_type;
91 }
92
93 #define gst_msdkh264enc_parent_class parent_class
94 G_DEFINE_TYPE (GstMsdkH264Enc, gst_msdkh264enc, GST_TYPE_MSDKENC);
95
96 static void
insert_frame_packing_sei(GstMsdkH264Enc * thiz,GstVideoCodecFrame * frame,GstVideoMultiviewMode mode)97 insert_frame_packing_sei (GstMsdkH264Enc * thiz, GstVideoCodecFrame * frame,
98 GstVideoMultiviewMode mode)
99 {
100 GstMapInfo map;
101 GstByteReader reader;
102 guint offset;
103
104 if (mode != GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE
105 && mode != GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM) {
106 GST_ERROR_OBJECT (thiz, "Unsupported multiview mode %d", mode);
107 return;
108 }
109
110 GST_DEBUG ("Inserting SEI Frame Packing for multiview mode %d", mode);
111
112 gst_buffer_map (frame->output_buffer, &map, GST_MAP_READ);
113 gst_byte_reader_init (&reader, map.data, map.size);
114
115 while ((offset =
116 gst_byte_reader_masked_scan_uint32 (&reader, 0xffffff00, 0x00000100,
117 0, gst_byte_reader_get_remaining (&reader))) != -1) {
118 guint8 type;
119 guint offset2;
120
121 gst_byte_reader_skip_unchecked (&reader, offset + 3);
122 if (!gst_byte_reader_get_uint8 (&reader, &type))
123 goto done;
124 type = type & 0x1f;
125
126 offset2 =
127 gst_byte_reader_masked_scan_uint32 (&reader, 0xffffff00, 0x00000100, 0,
128 gst_byte_reader_get_remaining (&reader));
129 if (offset2 == -1)
130 offset2 = gst_byte_reader_get_remaining (&reader);
131
132 /* Slice, should really be an IDR slice (5) */
133 if (type >= 1 && type <= 5) {
134 GstBuffer *new_buffer;
135 GstMemory *mem;
136 static const guint8 sei_top_bottom[] =
137 { 0x00, 0x00, 0x01, 0x06, 0x2d, 0x07, 0x82, 0x01,
138 0x00, 0x00, 0x03, 0x00, 0x01, 0x20, 0x80
139 };
140 static const guint8 sei_side_by_side[] =
141 { 0x00, 0x00, 0x01, 0x06, 0x2d, 0x07, 0x81, 0x81,
142 0x00, 0x00, 0x03, 0x00, 0x01, 0x20, 0x80
143 };
144 const guint8 *sei;
145 guint sei_size;
146
147 if (mode == GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE) {
148 sei = sei_side_by_side;
149 sei_size = sizeof (sei_side_by_side);
150 } else {
151 sei = sei_top_bottom;
152 sei_size = sizeof (sei_top_bottom);
153 }
154
155 /* Create frame packing SEI
156 * FIXME: This assumes it does not exist in the stream, which is not
157 * going to be true anymore once this is fixed:
158 * https://github.com/Intel-Media-SDK/MediaSDK/issues/13
159 */
160 new_buffer = gst_buffer_new ();
161
162 /* Copy all metadata */
163 gst_buffer_copy_into (new_buffer, frame->output_buffer,
164 GST_BUFFER_COPY_METADATA, 0, -1);
165
166 /* Copy previous NALs */
167 gst_buffer_copy_into (new_buffer, frame->output_buffer,
168 GST_BUFFER_COPY_MEMORY, 0, gst_byte_reader_get_pos (&reader) - 4);
169
170 mem =
171 gst_memory_new_wrapped (0, g_memdup (sei, sei_size), sei_size, 0,
172 sei_size, NULL, g_free);
173 gst_buffer_append_memory (new_buffer, mem);
174 gst_buffer_copy_into (new_buffer, frame->output_buffer,
175 GST_BUFFER_COPY_MEMORY, gst_byte_reader_get_pos (&reader) - 4, -1);
176
177 gst_buffer_unmap (frame->output_buffer, &map);
178 gst_buffer_unref (frame->output_buffer);
179 frame->output_buffer = new_buffer;
180 return;
181 }
182 }
183
184 done:
185 gst_buffer_unmap (frame->output_buffer, &map);
186 }
187
188 static GstFlowReturn
gst_msdkh264enc_pre_push(GstVideoEncoder * encoder,GstVideoCodecFrame * frame)189 gst_msdkh264enc_pre_push (GstVideoEncoder * encoder, GstVideoCodecFrame * frame)
190 {
191 GstMsdkH264Enc *thiz = GST_MSDKH264ENC (encoder);
192
193 if (GST_VIDEO_CODEC_FRAME_IS_SYNC_POINT (frame) &&
194 (thiz->frame_packing != GST_VIDEO_MULTIVIEW_MODE_NONE ||
195 ((GST_VIDEO_INFO_MULTIVIEW_MODE (&thiz->base.input_state->info) !=
196 GST_VIDEO_MULTIVIEW_MODE_NONE)
197 && GST_VIDEO_INFO_MULTIVIEW_MODE (&thiz->base.
198 input_state->info) != GST_VIDEO_MULTIVIEW_MODE_MONO))) {
199 insert_frame_packing_sei (thiz, frame,
200 thiz->frame_packing !=
201 GST_VIDEO_MULTIVIEW_MODE_NONE ? thiz->frame_packing :
202 GST_VIDEO_INFO_MULTIVIEW_MODE (&thiz->base.input_state->info));
203 }
204
205 return GST_FLOW_OK;
206 }
207
208 static gboolean
gst_msdkh264enc_set_format(GstMsdkEnc * encoder)209 gst_msdkh264enc_set_format (GstMsdkEnc * encoder)
210 {
211 GstMsdkH264Enc *thiz = GST_MSDKH264ENC (encoder);
212 GstCaps *template_caps;
213 GstCaps *allowed_caps = NULL;
214
215 thiz->profile = 0;
216 thiz->level = 0;
217
218 template_caps = gst_static_pad_template_get_caps (&src_factory);
219 allowed_caps = gst_pad_get_allowed_caps (GST_VIDEO_ENCODER_SRC_PAD (encoder));
220
221 /* If downstream has ANY caps let encoder decide profile and level */
222 if (allowed_caps == template_caps) {
223 GST_INFO_OBJECT (thiz,
224 "downstream has ANY caps, profile/level set to auto");
225 } else if (allowed_caps) {
226 GstStructure *s;
227 const gchar *profile;
228 const gchar *level;
229
230 if (gst_caps_is_empty (allowed_caps)) {
231 gst_caps_unref (allowed_caps);
232 gst_caps_unref (template_caps);
233 return FALSE;
234 }
235
236 allowed_caps = gst_caps_make_writable (allowed_caps);
237 allowed_caps = gst_caps_fixate (allowed_caps);
238 s = gst_caps_get_structure (allowed_caps, 0);
239
240 profile = gst_structure_get_string (s, "profile");
241 if (profile) {
242 if (!strcmp (profile, "high")) {
243 thiz->profile = MFX_PROFILE_AVC_HIGH;
244 } else if (!strcmp (profile, "main")) {
245 thiz->profile = MFX_PROFILE_AVC_MAIN;
246 } else if (!strcmp (profile, "baseline")) {
247 thiz->profile = MFX_PROFILE_AVC_BASELINE;
248 } else if (!strcmp (profile, "constrained-baseline")) {
249 thiz->profile = MFX_PROFILE_AVC_CONSTRAINED_BASELINE;
250 } else {
251 g_assert_not_reached ();
252 }
253 }
254
255 level = gst_structure_get_string (s, "level");
256 if (level) {
257 thiz->level = gst_codec_utils_h264_get_level_idc (level);
258 }
259
260 gst_caps_unref (allowed_caps);
261 }
262
263 gst_caps_unref (template_caps);
264
265 return TRUE;
266 }
267
268 static gboolean
gst_msdkh264enc_configure(GstMsdkEnc * encoder)269 gst_msdkh264enc_configure (GstMsdkEnc * encoder)
270 {
271 GstMsdkH264Enc *thiz = GST_MSDKH264ENC (encoder);
272
273 encoder->param.mfx.LowPower =
274 (thiz->lowpower ? MFX_CODINGOPTION_ON : MFX_CODINGOPTION_OFF);
275 encoder->param.mfx.CodecId = MFX_CODEC_AVC;
276 encoder->param.mfx.CodecProfile = thiz->profile;
277 encoder->param.mfx.CodecLevel = thiz->level;
278
279 thiz->option.Header.BufferId = MFX_EXTBUFF_CODING_OPTION;
280 thiz->option.Header.BufferSz = sizeof (thiz->option);
281 if (thiz->profile == MFX_PROFILE_AVC_CONSTRAINED_BASELINE ||
282 thiz->profile == MFX_PROFILE_AVC_BASELINE ||
283 thiz->profile == MFX_PROFILE_AVC_EXTENDED) {
284 thiz->option.CAVLC = MFX_CODINGOPTION_ON;
285 } else {
286 thiz->option.CAVLC =
287 (thiz->cabac ? MFX_CODINGOPTION_OFF : MFX_CODINGOPTION_ON);
288 }
289
290 gst_msdkenc_add_extra_param (encoder, (mfxExtBuffer *) & thiz->option);
291
292 encoder->option2.Trellis = thiz->trellis ? thiz->trellis : MFX_TRELLIS_OFF;
293 encoder->option2.MaxSliceSize = thiz->max_slice_size;
294 if (encoder->rate_control == MFX_RATECONTROL_LA ||
295 encoder->rate_control == MFX_RATECONTROL_LA_HRD ||
296 encoder->rate_control == MFX_RATECONTROL_LA_ICQ)
297 encoder->option2.LookAheadDS = thiz->lookahead_ds;
298
299 if (thiz->b_pyramid) {
300 encoder->option2.BRefType = MFX_B_REF_PYRAMID;
301 /* Don't define Gop structure for B-pyramid, otherwise EncodeInit
302 * will throw Invalid param error */
303 encoder->param.mfx.GopRefDist = 0;
304 }
305
306 /* Enable Extended coding options */
307 gst_msdkenc_ensure_extended_coding_options (encoder);
308
309 return TRUE;
310 }
311
312 static inline const gchar *
profile_to_string(gint profile)313 profile_to_string (gint profile)
314 {
315 switch (profile) {
316 case MFX_PROFILE_AVC_HIGH:
317 return "high";
318 case MFX_PROFILE_AVC_MAIN:
319 return "main";
320 case MFX_PROFILE_AVC_BASELINE:
321 return "baseline";
322 case MFX_PROFILE_AVC_CONSTRAINED_BASELINE:
323 return "constrained-baseline";
324 default:
325 break;
326 }
327
328 return NULL;
329 }
330
331 static inline const gchar *
level_to_string(gint level)332 level_to_string (gint level)
333 {
334 switch (level) {
335 case MFX_LEVEL_AVC_1:
336 return "1";
337 case MFX_LEVEL_AVC_1b:
338 return "1.1";
339 case MFX_LEVEL_AVC_11:
340 return "1.1";
341 case MFX_LEVEL_AVC_12:
342 return "1.2";
343 case MFX_LEVEL_AVC_13:
344 return "1.3";
345 case MFX_LEVEL_AVC_2:
346 return "2";
347 case MFX_LEVEL_AVC_21:
348 return "2.1";
349 case MFX_LEVEL_AVC_22:
350 return "2.2";
351 case MFX_LEVEL_AVC_3:
352 return "3";
353 case MFX_LEVEL_AVC_31:
354 return "3.1";
355 case MFX_LEVEL_AVC_32:
356 return "3.2";
357 case MFX_LEVEL_AVC_4:
358 return "4";
359 case MFX_LEVEL_AVC_41:
360 return "4.1";
361 case MFX_LEVEL_AVC_42:
362 return "4.2";
363 case MFX_LEVEL_AVC_5:
364 return "5";
365 case MFX_LEVEL_AVC_51:
366 return "5.1";
367 case MFX_LEVEL_AVC_52:
368 return "5.2";
369 default:
370 break;
371 }
372
373 return NULL;
374 }
375
376 static GstCaps *
gst_msdkh264enc_set_src_caps(GstMsdkEnc * encoder)377 gst_msdkh264enc_set_src_caps (GstMsdkEnc * encoder)
378 {
379 GstCaps *caps;
380 GstStructure *structure;
381 const gchar *profile;
382 const gchar *level;
383
384 caps = gst_caps_new_empty_simple ("video/x-h264");
385 structure = gst_caps_get_structure (caps, 0);
386
387 gst_structure_set (structure, "stream-format", G_TYPE_STRING, "byte-stream",
388 NULL);
389
390 gst_structure_set (structure, "alignment", G_TYPE_STRING, "au", NULL);
391
392 profile = profile_to_string (encoder->param.mfx.CodecProfile);
393 if (profile)
394 gst_structure_set (structure, "profile", G_TYPE_STRING, profile, NULL);
395
396 level = level_to_string (encoder->param.mfx.CodecLevel);
397 if (level)
398 gst_structure_set (structure, "level", G_TYPE_STRING, level, NULL);
399
400 return caps;
401 }
402
403 static void
gst_msdkh264enc_set_property(GObject * object,guint prop_id,const GValue * value,GParamSpec * pspec)404 gst_msdkh264enc_set_property (GObject * object, guint prop_id,
405 const GValue * value, GParamSpec * pspec)
406 {
407 GstMsdkH264Enc *thiz = GST_MSDKH264ENC (object);
408
409 if (gst_msdkenc_set_common_property (object, prop_id, value, pspec))
410 return;
411
412 GST_OBJECT_LOCK (thiz);
413
414 switch (prop_id) {
415 case PROP_CABAC:
416 thiz->cabac = g_value_get_boolean (value);
417 break;
418 case PROP_LOW_POWER:
419 thiz->lowpower = g_value_get_boolean (value);
420 break;
421 case PROP_FRAME_PACKING:
422 thiz->frame_packing = g_value_get_enum (value);
423 break;
424 case PROP_RC_LA_DOWNSAMPLING:
425 thiz->lookahead_ds = g_value_get_enum (value);
426 break;
427 case PROP_TRELLIS:
428 thiz->trellis = g_value_get_flags (value);
429 break;
430 case PROP_MAX_SLICE_SIZE:
431 thiz->max_slice_size = g_value_get_uint (value);
432 break;
433 case PROP_B_PYRAMID:
434 thiz->b_pyramid = g_value_get_boolean (value);
435 break;
436 default:
437 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
438 break;
439 }
440 GST_OBJECT_UNLOCK (thiz);
441 return;
442 }
443
444 static void
gst_msdkh264enc_get_property(GObject * object,guint prop_id,GValue * value,GParamSpec * pspec)445 gst_msdkh264enc_get_property (GObject * object, guint prop_id, GValue * value,
446 GParamSpec * pspec)
447 {
448 GstMsdkH264Enc *thiz = GST_MSDKH264ENC (object);
449
450 if (gst_msdkenc_get_common_property (object, prop_id, value, pspec))
451 return;
452
453 GST_OBJECT_LOCK (thiz);
454 switch (prop_id) {
455 case PROP_CABAC:
456 g_value_set_boolean (value, thiz->cabac);
457 break;
458 case PROP_LOW_POWER:
459 g_value_set_boolean (value, thiz->lowpower);
460 break;
461 case PROP_FRAME_PACKING:
462 g_value_set_enum (value, thiz->frame_packing);
463 break;
464 case PROP_RC_LA_DOWNSAMPLING:
465 g_value_set_enum (value, thiz->lookahead_ds);
466 break;
467 case PROP_TRELLIS:
468 g_value_set_flags (value, thiz->trellis);
469 break;
470 case PROP_MAX_SLICE_SIZE:
471 g_value_set_uint (value, thiz->max_slice_size);
472 break;
473 case PROP_B_PYRAMID:
474 g_value_set_boolean (value, thiz->b_pyramid);
475 break;
476 default:
477 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
478 break;
479 }
480 GST_OBJECT_UNLOCK (thiz);
481 }
482
483 static void
gst_msdkh264enc_class_init(GstMsdkH264EncClass * klass)484 gst_msdkh264enc_class_init (GstMsdkH264EncClass * klass)
485 {
486 GObjectClass *gobject_class;
487 GstElementClass *element_class;
488 GstVideoEncoderClass *videoencoder_class;
489 GstMsdkEncClass *encoder_class;
490
491 gobject_class = G_OBJECT_CLASS (klass);
492 element_class = GST_ELEMENT_CLASS (klass);
493 videoencoder_class = GST_VIDEO_ENCODER_CLASS (klass);
494 encoder_class = GST_MSDKENC_CLASS (klass);
495
496 gobject_class->set_property = gst_msdkh264enc_set_property;
497 gobject_class->get_property = gst_msdkh264enc_get_property;
498
499 videoencoder_class->pre_push = gst_msdkh264enc_pre_push;
500
501 encoder_class->set_format = gst_msdkh264enc_set_format;
502 encoder_class->configure = gst_msdkh264enc_configure;
503 encoder_class->set_src_caps = gst_msdkh264enc_set_src_caps;
504
505 gst_msdkenc_install_common_properties (encoder_class);
506
507 g_object_class_install_property (gobject_class, PROP_CABAC,
508 g_param_spec_boolean ("cabac", "CABAC", "Enable CABAC entropy coding",
509 PROP_CABAC_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
510
511 g_object_class_install_property (gobject_class, PROP_LOW_POWER,
512 g_param_spec_boolean ("low-power", "Low power", "Enable low power mode",
513 PROP_LOWPOWER_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
514
515 g_object_class_install_property (gobject_class, PROP_FRAME_PACKING,
516 g_param_spec_enum ("frame-packing", "Frame Packing",
517 "Set frame packing mode for Stereoscopic content",
518 gst_msdkh264enc_frame_packing_get_type (), PROP_FRAME_PACKING_DEFAULT,
519 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
520
521 g_object_class_install_property (gobject_class, PROP_RC_LA_DOWNSAMPLING,
522 g_param_spec_enum ("rc-lookahead-ds", "Look-ahead Downsampling",
523 "Down sampling mode in look ahead bitrate control",
524 gst_msdkenc_rc_lookahead_ds_get_type (),
525 PROP_RC_LA_DOWNSAMPLING_DEFAULT,
526 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
527
528 g_object_class_install_property (gobject_class, PROP_TRELLIS,
529 g_param_spec_flags ("trellis", "Trellis",
530 "Enable Trellis Quantization",
531 gst_msdkenc_trellis_quantization_get_type (), _MFX_TRELLIS_NONE,
532 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
533
534 g_object_class_install_property (gobject_class, PROP_MAX_SLICE_SIZE,
535 g_param_spec_uint ("max-slice-size", "Max Slice Size",
536 "Maximum slice size in bytes (if enabled MSDK will ignore the control over num-slices)",
537 0, G_MAXUINT32, PROP_MAX_SLICE_SIZE_DEFAULT,
538 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
539
540 g_object_class_install_property (gobject_class, PROP_B_PYRAMID,
541 g_param_spec_boolean ("b-pyramid", "B-pyramid",
542 "Enable B-Pyramid Referene structure", FALSE,
543 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
544
545 gst_element_class_set_static_metadata (element_class,
546 "Intel MSDK H264 encoder", "Codec/Encoder/Video/Hardware",
547 "H264 video encoder based on Intel Media SDK",
548 "Josep Torra <jtorra@oblong.com>");
549 gst_element_class_add_static_pad_template (element_class, &src_factory);
550 }
551
552 static void
gst_msdkh264enc_init(GstMsdkH264Enc * thiz)553 gst_msdkh264enc_init (GstMsdkH264Enc * thiz)
554 {
555 thiz->cabac = PROP_CABAC_DEFAULT;
556 thiz->lowpower = PROP_LOWPOWER_DEFAULT;
557 thiz->frame_packing = PROP_FRAME_PACKING_DEFAULT;
558 thiz->lookahead_ds = PROP_RC_LA_DOWNSAMPLING_DEFAULT;
559 thiz->trellis = PROP_TRELLIS_DEFAULT;
560 thiz->max_slice_size = PROP_MAX_SLICE_SIZE_DEFAULT;
561 thiz->b_pyramid = PROP_B_PYRAMID_DEFAULT;
562 }
563