2 * gstvaapiencode.c - VA-API video encoder
4 * Copyright (C) 2011 Intel Corporation
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License
8 * as published by the Free Software Foundation; either version 2.1
9 * of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free
18 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301 USA
23 #include "gstvaapiencode.h"
27 #include <gst/video/videocontext.h>
29 #include "gst/vaapi/gstvaapivideobuffer.h"
30 #include "gst/vaapi/gstvaapisurfacepool.h"
31 #include "gst/vaapi/gstvaapiencode_h264.h"
32 #include "gst/vaapi/gstvaapiencode_h263.h"
33 #include "gst/vaapi/gstvaapiencode_mpeg4.h"
34 #include "gst/vaapi/gstvaapibaseencoder.h"
35 #include "gst/vaapi/gstvaapipluginutil.h"
38 #include <gst/vaapi/gstvaapivideobuffer_glx.h>
39 #define gst_vaapi_video_buffer_new(display) \
40 gst_vaapi_video_buffer_glx_new(GST_VAAPI_DISPLAY_GLX(display))
44 GST_DEBUG_CATEGORY_STATIC (gst_vaapi_encode_debug)
45 #define GST_CAT_DEFAULT gst_vaapi_encode_debug
47 GST_DEBUG_CATEGORY_INIT (gst_vaapi_encode_debug, "vaapiencode", 0,
48 "vaapiencode element");
50 GST_DEBUG_CATEGORY_STATIC (gst_vaapi_encode_debug);
51 #define GST_CAT_DEFAULT gst_vaapi_encode_debug
53 #define GST_VAAPI_ENCODE_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_VAAPI_ENCODE, GstVaapiEncodePrivate))
55 typedef struct _GstVaapiEncodePrivate GstVaapiEncodePrivate;
58 #define GstVideoContextClass GstVideoContextInterface
59 GST_BOILERPLATE_WITH_INTERFACE(
65 GST_TYPE_VIDEO_CONTEXT,
75 static void gst_vaapi_encode_finalize(GObject *object);
76 static void gst_vaapi_encode_set_property(GObject *object, guint prop_id,
77 const GValue *value, GParamSpec *pspec);
78 static void gst_vaapi_encode_get_property (GObject * object, guint prop_id,
79 GValue * value, GParamSpec * pspec);
81 static gboolean gst_vaapi_encode_set_caps(GstPad *sink_pad, GstCaps *caps);
82 static GstCaps *gst_vaapi_encode_get_caps(GstPad *sink_pad);
83 static GstFlowReturn gst_vaapi_encode_chain(GstPad *sink_pad, GstBuffer *buf);
84 static GstStateChangeReturn gst_vaapi_encode_change_state(GstElement *element, GstStateChange transition);
85 static GstFlowReturn gst_vaapi_encode_buffer_alloc(GstPad * pad, guint64 offset, guint size,
86 GstCaps * caps, GstBuffer ** buf);
88 static char* _encode_dump_caps(GstCaps *cpas);
90 /* context(display) interface */
92 gst_vaapi_encode_set_video_context(GstVideoContext *context, const gchar *type,
95 GstVaapiEncode *encode = GST_VAAPI_ENCODE (context);
96 GstVaapiDisplay *display = NULL;
97 gst_vaapi_set_display (type, value, &display);
98 gst_vaapi_encoder_set_display(encode->encoder, display);
102 gst_video_context_supported (GstVaapiEncode *decode, GType iface_type)
104 return (iface_type == GST_TYPE_VIDEO_CONTEXT);
108 gst_video_context_interface_init(GstVideoContextInterface *iface)
110 iface->set_context = gst_vaapi_encode_set_video_context;
114 gst_vaapi_encode_query (GstPad *pad, GstQuery *query) {
115 GstVaapiEncode *encode = GST_VAAPI_ENCODE (gst_pad_get_parent_element (pad));
118 if (encode->encoder && gst_vaapi_reply_to_query(query, ENCODER_DISPLAY(encode->encoder)))
121 res = gst_pad_query_default (pad, query);
123 g_object_unref (encode);
127 /*gst fix functions*/
130 gst_vaapi_encode_base_init(gpointer klass)
133 GstElementClass * const element_class = GST_ELEMENT_CLASS(klass);
135 gst_element_class_set_details(element_class, &gst_vaapi_encode_details);
138 gst_element_class_add_pad_template(
140 gst_static_pad_template_get(&gst_vaapi_encode_sink_factory)
144 gst_element_class_add_pad_template(
146 gst_static_pad_template_get(&gst_vaapi_encode_src_factory)
153 gst_vaapi_encode_class_init(GstVaapiEncodeClass *klass)
155 GObjectClass * const object_class = G_OBJECT_CLASS(klass);
156 GstElementClass * const element_class = GST_ELEMENT_CLASS(klass);
158 object_class->finalize = gst_vaapi_encode_finalize;
159 object_class->set_property = gst_vaapi_encode_set_property;
160 object_class->get_property = gst_vaapi_encode_get_property;
162 GST_DEBUG_CATEGORY_INIT (gst_vaapi_encode_debug, "vaapiencode", 0,
163 "vaapiencode element");
165 element_class->change_state = gst_vaapi_encode_change_state;
167 klass->set_encoder_src_caps = NULL;
169 /* Registering debug symbols for function pointers */
170 GST_DEBUG_REGISTER_FUNCPTR (gst_vaapi_encode_change_state);
171 GST_DEBUG_REGISTER_FUNCPTR (gst_vaapi_encode_get_caps);
172 GST_DEBUG_REGISTER_FUNCPTR (gst_vaapi_encode_set_caps);
173 GST_DEBUG_REGISTER_FUNCPTR (gst_vaapi_encode_chain);
174 GST_DEBUG_REGISTER_FUNCPTR (gst_vaapi_encode_buffer_alloc);
178 gst_vaapi_encode_finalize(GObject *object)
180 GstVaapiEncode * const encode = GST_VAAPI_ENCODE(object);
182 if (encode->sinkpad_caps) {
183 gst_caps_unref(encode->sinkpad_caps);
184 encode->sinkpad_caps = NULL;
186 encode->sinkpad = NULL;
188 if (encode->srcpad_caps) {
189 gst_caps_unref(encode->srcpad_caps);
190 encode->srcpad_caps = NULL;
192 encode->srcpad = NULL;
194 if (encode->encoder) {
195 gst_vaapi_encoder_close(encode->encoder);
196 gst_vaapi_encoder_uninitialize(encode->encoder);
197 gst_vaapi_encoder_unref(encode->encoder);
198 encode->encoder = NULL;
201 G_OBJECT_CLASS(parent_class)->finalize(object);
205 gst_vaapi_encode_init(GstVaapiEncode *encode, GstVaapiEncodeClass *klass)
207 GstElementClass * const element_class = GST_ELEMENT_CLASS(klass);
209 encode->sinkpad_caps = NULL;
210 encode->srcpad_caps = NULL;
211 encode->first_sink_frame = TRUE;
212 encode->first_src_frame = TRUE;
214 encode->encoder = NULL;
217 encode->sinkpad = gst_pad_new_from_template(
218 gst_element_class_get_pad_template(element_class, "sink"),
221 gst_pad_set_getcaps_function(encode->sinkpad, gst_vaapi_encode_get_caps);
222 gst_pad_set_setcaps_function(encode->sinkpad, gst_vaapi_encode_set_caps);
223 gst_pad_set_chain_function(encode->sinkpad, gst_vaapi_encode_chain);
224 gst_pad_set_bufferalloc_function(encode->sinkpad, gst_vaapi_encode_buffer_alloc);
225 /*gst_pad_set_event_function(encode->sinkpad, gst_vaapi_encode_sink_event); */
226 /*gst_pad_use_fixed_caps(encode->sinkpad);*/
227 gst_pad_set_query_function(encode->sinkpad, gst_vaapi_encode_query);
228 gst_element_add_pad(GST_ELEMENT(encode), encode->sinkpad);
231 encode->srcpad = gst_pad_new_from_template(
232 gst_element_class_get_pad_template(element_class, "src"),
235 encode->srcpad_caps = NULL;
237 gst_pad_use_fixed_caps(encode->srcpad);
238 /*gst_pad_set_event_function(encode->srcpad, gst_vaapi_encode_src_event);*/
239 gst_pad_set_query_function(encode->sinkpad, gst_vaapi_encode_query);
240 gst_element_add_pad(GST_ELEMENT(encode), encode->srcpad);
245 gst_vaapi_encode_set_property(GObject *object, guint prop_id,
246 const GValue *value, GParamSpec *pspec)
248 GstVaapiEncode *encode = GST_VAAPI_ENCODE(object);
249 ENCODER_ASSERT(encode->encoder);
256 gst_vaapi_encode_get_property (GObject * object, guint prop_id,
257 GValue * value, GParamSpec * pspec)
259 GstVaapiEncode *encode = GST_VAAPI_ENCODE(object);
260 ENCODER_ASSERT(encode->encoder);
267 gst_vaapi_encode_set_caps(GstPad *sink_pad, GstCaps *caps)
269 GstVaapiEncode *encode = GST_VAAPI_ENCODE(GST_OBJECT_PARENT(sink_pad));
270 GstStructure *structure = NULL, *src_struct = NULL;
271 gint width = 0, height = 0;
272 gint fps_n = 0, fps_d = 0;
273 const GValue *fps_value = NULL, *format_value;
276 EncoderStatus encoder_ret = ENCODER_NO_ERROR;
278 encode->sinkpad_caps = caps;
280 ENCODER_LOG_INFO("gst_vaapi_encode_set_caps,\n%s", _encode_dump_caps(caps));
282 structure = gst_caps_get_structure (caps, 0);
283 if (gst_structure_get_int (structure, "width", &width)) {
284 encode->encoder->width = width;
286 if (gst_structure_get_int (structure, "height", &height)) {
287 encode->encoder->height = height;
289 fps_value = gst_structure_get_value (structure, "framerate");
291 fps_n = gst_value_get_fraction_numerator (fps_value);
292 fps_d = gst_value_get_fraction_denominator (fps_value);
293 encode->encoder->frame_rate = fps_n/fps_d;
295 format_value = gst_structure_get_value (structure, "format");
296 if (format_value && GST_IS_VAAPI_ENCODE_H264(encode)) {
297 ENCODER_CHECK_STATUS(format_value && GST_TYPE_FOURCC == G_VALUE_TYPE(format_value),
298 FALSE, "1st buffer caps' format type is not fourcc.");
299 format = gst_value_get_fourcc (format_value);
301 gst_vaapi_base_encoder_set_input_format(GST_VAAPI_BASE_ENCODER(encode->encoder), format);
306 if (encode->srcpad_caps) {
307 gst_caps_unref(encode->srcpad_caps);
309 encode->srcpad_caps = gst_caps_copy(gst_pad_get_pad_template_caps(encode->srcpad));
310 src_struct = gst_caps_get_structure(encode->srcpad_caps, 0);
311 gst_structure_set(src_struct, "width", G_TYPE_INT, width,
312 "height", G_TYPE_INT, height,
313 "framerate", GST_TYPE_FRACTION, fps_n, fps_d, NULL);
314 GstVaapiEncodeClass *encode_class = GST_VAAPI_ENCODE_GET_CLASS(encode);
315 if (encode_class->set_encoder_src_caps) {
316 encode_class->set_encoder_src_caps(encode, encode->srcpad_caps);
319 /*set display and initialize encoder*/
320 ENCODER_CHECK_STATUS(gst_vaapi_ensure_display(encode, &ENCODER_DISPLAY(encode->encoder)),
321 FALSE, "encoder ensure display failed on setting caps.")
322 encoder_ret = gst_vaapi_encoder_initialize(encode->encoder);
323 ENCODER_CHECK_STATUS (ENCODER_NO_ERROR == encoder_ret,
324 FALSE, "gst_vaapi_encoder_initialize failed.");
325 encoder_ret = gst_vaapi_encoder_open(encode->encoder, NULL);
326 ENCODER_CHECK_STATUS (ENCODER_NO_ERROR == encoder_ret,
327 FALSE, "gst_vaapi_encoder_open failed.");
333 gst_vaapi_encode_get_caps(GstPad *sink_pad)
335 GstCaps *caps = NULL;
336 GstVaapiEncode * const encode = GST_VAAPI_ENCODE(GST_OBJECT_PARENT(sink_pad));
337 if (encode->sinkpad_caps) {
338 gst_caps_ref(encode->sinkpad_caps);
339 ENCODER_LOG_INFO("get caps,\n%s", _encode_dump_caps(encode->sinkpad_caps));
340 return encode->sinkpad_caps;
342 caps = gst_caps_copy(gst_pad_get_pad_template_caps(sink_pad));
346 static GstStateChangeReturn
347 gst_vaapi_encode_change_state(GstElement *element, GstStateChange transition)
349 GstVaapiEncode * const encode = GST_VAAPI_ENCODE(element);
350 GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
352 switch (transition) {
353 case GST_STATE_CHANGE_READY_TO_PAUSED:
355 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
361 ret = GST_ELEMENT_CLASS(parent_class)->change_state(element, transition);
362 if (ret != GST_STATE_CHANGE_SUCCESS)
365 switch (transition) {
366 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
368 case GST_STATE_CHANGE_PAUSED_TO_READY: {
369 gst_vaapi_encoder_close(encode->encoder);
375 return GST_STATE_CHANGE_SUCCESS;
380 gst_vaapi_encode_chain(GstPad *sink_pad, GstBuffer *buf)
382 GstFlowReturn ret = GST_FLOW_OK;
383 GstVaapiEncode *encode = GST_VAAPI_ENCODE(GST_OBJECT_PARENT(sink_pad));
384 EncoderStatus encoder_ret = ENCODER_NO_ERROR;
385 GList *out_buffers = NULL;
386 GstBuffer *tmp_buffer = NULL;
388 ENCODER_ASSERT(encode && encode->encoder);
389 if (encode->first_sink_frame) {
390 /* get first buffer caps and set encoder values */
391 if (GST_VAAPI_IS_VIDEO_BUFFER(buf)) {
392 GstVaapiVideoBuffer *video_buffer = GST_VAAPI_VIDEO_BUFFER(buf);
393 ENCODER_ASSERT(video_buffer);
394 ENCODER_ASSERT(gst_vaapi_video_buffer_get_display(video_buffer) == ENCODER_DISPLAY(encode->encoder));
396 encode->first_sink_frame = FALSE;
400 ENCODER_ASSERT(gst_vaapi_encoder_get_state(encode->encoder) >= VAAPI_ENC_OPENED);
401 encoder_ret = gst_vaapi_encoder_encode(encode->encoder, buf, &out_buffers);
402 ENCODER_CHECK_STATUS (ENCODER_NO_ERROR == encoder_ret, GST_FLOW_ERROR, "gst_vaapi_encoder_encode failed.");
405 while (out_buffers) {
406 tmp_buffer = out_buffers->data;
407 out_buffers = g_list_remove(out_buffers, tmp_buffer);
408 if (encode->first_src_frame) {
409 GstBuffer *codec_data = NULL;
410 ENCODER_ASSERT(encode->srcpad_caps);
411 /*replace codec data in src pad caps*/
412 if (ENCODER_NO_ERROR == gst_vaapi_encoder_get_codec_data(encode->encoder, &codec_data) && codec_data) {
413 gst_caps_set_simple(encode->srcpad_caps, "codec_data",GST_TYPE_BUFFER, codec_data, NULL);
415 gst_pad_set_caps (encode->srcpad, encode->srcpad_caps);
416 GST_BUFFER_CAPS(tmp_buffer) = gst_caps_ref(encode->srcpad_caps);
417 ENCODER_LOG_INFO("gst_vaapi_encode_chain 1st push-buffer caps,\n%s", _encode_dump_caps(encode->srcpad_caps));
418 encode->first_src_frame = FALSE;
420 ENCODER_LOG_DEBUG("output:%" GST_TIME_FORMAT ", 0x%s",
421 GST_TIME_ARGS(GST_BUFFER_TIMESTAMP(tmp_buffer)),
422 vaapi_encoder_dump_bytes(GST_BUFFER_DATA(tmp_buffer),
423 (GST_BUFFER_SIZE(tmp_buffer) > 16? 16: GST_BUFFER_SIZE(tmp_buffer))));
424 gst_pad_push(encode->srcpad, tmp_buffer);
428 gst_buffer_unref(buf);
434 gst_vaapi_encode_buffer_alloc(GstPad * pad, guint64 offset, guint size,
435 GstCaps * caps, GstBuffer ** buf)
437 GstVaapiEncode * const encode = GST_VAAPI_ENCODE(GST_OBJECT_PARENT(pad));
438 GstStructure *structure = NULL;
440 GstVaapiDisplay* display = NULL;
441 GstFlowReturn ret = GST_FLOW_ERROR;
444 structure = gst_caps_get_structure(caps, 0);
446 if (!structure || gst_structure_has_name(structure, "video/x-vaapi-surface")) {
447 ENCODER_ASSERT(encode->encoder);
448 ENCODER_CHECK_STATUS(gst_vaapi_ensure_display(encode, &ENCODER_DISPLAY(encode->encoder)),
449 GST_FLOW_ERROR, "encoder ensure display failed.")
450 display = ENCODER_DISPLAY(encode->encoder);
451 buffer = gst_vaapi_video_buffer_new(display);
452 } else { /* video/x-raw-yuv */
453 buffer = gst_buffer_new_and_alloc(size);
456 ENCODER_CHECK_STATUS(buffer, GST_FLOW_ERROR, "gst_vaapi_encode_buffer_alloc failed.");
458 GST_BUFFER_OFFSET (buffer) = offset;
460 gst_buffer_set_caps(buffer, caps);
471 _encode_dump_caps(GstCaps *cpas)
474 GstStructure const *structure;
476 static char caps_string[4096*5];
479 char *cur = caps_string;
480 memset(caps_string, 0, sizeof(caps_string));
481 for (i = 0; i < gst_caps_get_size(cpas); i++) {
482 structure = gst_caps_get_structure(cpas, i);
483 const char* caps_name = gst_structure_get_name (structure);
484 sprintf(cur, "cap_%02d:%s\n", i, caps_name);
487 for (j = 0; j < gst_structure_n_fields(structure); j++) {
488 const char* name = gst_structure_nth_field_name(structure, j);
489 value = gst_structure_get_value(structure, name);
490 tmp = gst_value_serialize(value);
491 sprintf(cur, "\t%s:%s(%s)\n", name, tmp, G_VALUE_TYPE_NAME(value));