37 namespace ArgusSamples
42 : m_state(GST_STATE_NULL)
54 static const char *s_videoEncoderName =
"video encoder";
85 gst_object_unref(
m_p);
112 float frameRate,
const char *fileName,
VideoFormat videoFormat,
117 gst_init(NULL, NULL);
120 m_pipeline = gst_pipeline_new(
"video_pipeline");
122 ORIGINATE_ERROR(
"Failed to create video pipeline");
125 GstElement *videoSource = gst_element_factory_make(
"nveglstreamsrc", NULL);
127 ORIGINATE_ERROR(
"Failed to create capture source element");
129 if (!gst_bin_add(GST_BIN(m_pipeline), videoSource))
130 ORIGINATE_ERROR(
"Failed to add video source to pipeline");
134 g_object_set(G_OBJECT(videoSource),
"eglstream", videoStream, NULL);
137 GstElement *queue = gst_element_factory_make(
"queue", NULL);
139 ORIGINATE_ERROR(
"Failed to create queue");
141 if (!gst_bin_add(GST_BIN(m_pipeline), queue))
142 ORIGINATE_ERROR(
"Failed to add queue to pipeline");
146 GstElement *videoEncoder = NULL;
150 videoEncoder = gst_element_factory_make(
"omxh264enc", s_videoEncoderName);
153 videoEncoder = gst_element_factory_make(
"omxh265enc", s_videoEncoderName);
156 videoEncoder = gst_element_factory_make(
"omxvp8enc", s_videoEncoderName);
159 ORIGINATE_ERROR(
"Unhandled video format");
162 ORIGINATE_ERROR(
"Failed to create video encoder");
163 unrefer.
set(videoEncoder);
164 if (!gst_bin_add(GST_BIN(m_pipeline), videoEncoder))
165 ORIGINATE_ERROR(
"Failed to add video encoder to pipeline");
173 else if (height < 1080)
175 else if (height <= 2160)
181 g_object_set(G_OBJECT(videoEncoder),
"bitrate", bitRate, NULL);
186 REPORT_ERROR(
"The video format H265 is only supported with MKV in current GST version. "
187 "Selecting MKV as container");
191 GstElement *videoMuxer = NULL;
192 switch (videoFileType)
195 videoMuxer = gst_element_factory_make(
"qtmux", NULL);
198 videoMuxer = gst_element_factory_make(
"3gppmux", NULL);
201 videoMuxer = gst_element_factory_make(
"avimux", NULL);
204 videoMuxer = gst_element_factory_make(
"matroskamux", NULL);
207 videoMuxer = gst_element_factory_make(
"identity", NULL);
210 ORIGINATE_ERROR(
"Unhandled video file type");
213 ORIGINATE_ERROR(
"Failed to create video muxer");
214 unrefer.
set(videoMuxer);
215 if (!gst_bin_add(GST_BIN(m_pipeline), videoMuxer))
216 ORIGINATE_ERROR(
"Failed to add video muxer to pipeline");
220 GstElement *videoSink = gst_element_factory_make(
"filesink", NULL);
222 ORIGINATE_ERROR(
"Failed to create video sink");
223 unrefer.
set(videoSink);
224 if (!gst_bin_add(GST_BIN(m_pipeline), videoSink))
225 ORIGINATE_ERROR(
"Failed to add video sink to pipeline");
229 std::string videoFileName(fileName);
230 if (videoFileName !=
"/dev/null")
232 videoFileName +=
".";
236 g_object_set(G_OBJECT(videoSink),
"location", videoFileName.c_str(), NULL);
241 if (frameRate == 0.0f)
245 GstCaps *caps = gst_caps_new_simple(
"video/x-raw",
246 "format", G_TYPE_STRING,
"I420",
247 "width", G_TYPE_INT, width,
248 "height", G_TYPE_INT, height,
249 "framerate", GST_TYPE_FRACTION, static_cast<gint>(frameRate * 100.f), 100,
252 ORIGINATE_ERROR(
"Failed to create caps");
254 GstCapsFeatures *feature = gst_caps_features_new(
"memory:NVMM", NULL);
257 gst_caps_unref(caps);
258 ORIGINATE_ERROR(
"Failed to create caps feature");
261 gst_caps_set_features(caps, 0, feature);
264 if (!gst_element_link_filtered(videoSource, queue, caps))
266 gst_caps_unref(caps);
267 ORIGINATE_ERROR(
"Failed to link source to queue");
269 gst_caps_unref(caps);
272 if (!gst_element_link(queue, videoEncoder))
273 ORIGINATE_ERROR(
"Failed to link queue to encoder");
279 if (!gst_element_link(videoEncoder, videoMuxer))
280 ORIGINATE_ERROR(
"Failed to link encoder to muxer");
284 if (!gst_element_link_pads(videoEncoder,
"src", videoMuxer,
"video_%u"))
285 ORIGINATE_ERROR(
"Failed to link encoder to muxer pad");
289 if (!gst_element_link(videoMuxer, videoSink))
290 ORIGINATE_ERROR(
"Failed to link muxer to sink");
293 #else // GST_SUPPORTED
294 ORIGINATE_ERROR(
"Not supported");
295 #endif // GST_SUPPORTED
302 static bool objectModifyFlags(GObject *obj,
const char *flagName,
const char *valueName,
bool set)
305 GParamSpec **spec = g_object_class_list_properties(G_OBJECT_GET_CLASS(obj), &count);
307 for (guint index = 0; index < count; ++index)
309 GParamSpec *param = spec[index];
310 if (strcmp(param->name, flagName) == 0)
312 if (!G_IS_PARAM_SPEC_FLAGS(param))
313 ORIGINATE_ERROR(
"Param '%s' is not a flag", flagName);
315 GParamSpecFlags *pflags = G_PARAM_SPEC_FLAGS(param);
316 GFlagsValue *value = g_flags_get_value_by_nick(pflags->flags_class, valueName);
318 ORIGINATE_ERROR(
"Value '%s' of flag '%s' not found", valueName, flagName);
321 g_object_get(obj, flagName, &flags, NULL);
323 flags |= value->value;
325 flags &= ~value->value;
326 g_object_set(obj, flagName, flags, NULL);
332 ORIGINATE_ERROR(
"Param '%s' not found", flagName);
334 #endif // GST_SUPPORTED
340 gst_init(NULL, NULL);
343 m_pipeline = gst_element_factory_make(
"playbin",
"play");
345 ORIGINATE_ERROR(
"Failed to create playback pipeline");
348 char *uri = gst_filename_to_uri(fileName, NULL);
349 g_object_set(G_OBJECT(m_pipeline),
"uri", uri, NULL);
353 PROPAGATE_ERROR(objectModifyFlags(G_OBJECT(m_pipeline),
"flags",
"text",
false));
354 PROPAGATE_ERROR(objectModifyFlags(G_OBJECT(m_pipeline),
"flags",
"native-video",
true));
357 GstElement *audioSink = gst_element_factory_make(
"autoaudiosink",
"audio_sink");
359 ORIGINATE_ERROR(
"Failed to create audio sink");
362 g_object_set(G_OBJECT(m_pipeline),
"audio-sink", audioSink, NULL);
365 GstElement *videoSinkBin = gst_bin_new(
"video_sink_bin");
367 ORIGINATE_ERROR(
"Failed to create video sink bin");
370 g_object_set(G_OBJECT(m_pipeline),
"video-sink", videoSinkBin, NULL);
373 GstElement *videoConvert = gst_element_factory_make(
"nvvidconv",
"video converter");
375 ORIGINATE_ERROR(
"Failed to create video converter");
377 if (!gst_bin_add(GST_BIN(videoSinkBin), videoConvert))
378 ORIGINATE_ERROR(
"Failed to add video convert to video sink bin");
382 GstElement *videoSink = gst_element_factory_make(
"nvvideosink",
"video sink");
384 ORIGINATE_ERROR(
"Failed to create video sink");
385 unrefer.
set(videoSink);
386 if (!gst_bin_add(GST_BIN(videoSinkBin), videoSink))
387 ORIGINATE_ERROR(
"Failed to add video sink to video sink bin");
393 *videoStream = EGL_NO_STREAM_KHR;
394 g_object_get(G_OBJECT(videoSink),
"stream", videoStream, NULL);
395 if (*videoStream == EGL_NO_STREAM_KHR)
396 ORIGINATE_ERROR(
"Failed to get EGL stream from video sink");
398 if (!gst_element_link(videoConvert, videoSink))
399 ORIGINATE_ERROR(
"Failed to link video convert to video sink");
402 GstPad *pad = gst_element_get_static_pad(videoConvert,
"sink");
404 ORIGINATE_ERROR(
"Failed to get sink pad of video convert");
406 GstPad *ghostPad = gst_ghost_pad_new(
"sink", pad);
408 ORIGINATE_ERROR(
"Failed to create the ghost pad");
410 if (!gst_pad_set_active(ghostPad, TRUE))
411 ORIGINATE_ERROR(
"Failed to set pad active");
412 if (!gst_element_add_pad(videoSinkBin, ghostPad))
413 ORIGINATE_ERROR(
"Failed to add pad");
418 #else // GST_SUPPORTED
419 ORIGINATE_ERROR(
"Not supported");
420 #endif // GST_SUPPORTED
427 ORIGINATE_ERROR(
"Video pipeline is not set up");
429 if (m_state != GST_STATE_PLAYING)
432 if (gst_element_set_state(m_pipeline, GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE)
433 ORIGINATE_ERROR(
"Failed to set playing state");
435 m_state = GST_STATE_PLAYING;
444 GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS(GST_BIN(m_pipeline),
445 GST_DEBUG_GRAPH_SHOW_ALL,
"argus_camera");
449 #else // GST_SUPPORTED
450 ORIGINATE_ERROR(
"Not supported");
451 #endif // GST_SUPPORTED
458 ORIGINATE_ERROR(
"Video pipeline is not set up");
460 if (m_state != GST_STATE_PAUSED)
462 if (gst_element_set_state(m_pipeline, GST_STATE_PAUSED) == GST_STATE_CHANGE_FAILURE)
463 ORIGINATE_ERROR(
"Failed to set pause state");
464 m_state = GST_STATE_PAUSED;
468 #else // GST_SUPPORTED
469 ORIGINATE_ERROR(
"Not supported");
470 #endif // GST_SUPPORTED
478 ORIGINATE_ERROR(
"Video pipeline is not set up");
480 GstState newState = GST_STATE_NULL;
481 if (m_state == GST_STATE_PLAYING)
482 newState = GST_STATE_PAUSED;
483 else if (m_state == GST_STATE_PAUSED)
484 newState = GST_STATE_PLAYING;
486 ORIGINATE_ERROR(
"Invalid state");
488 if (gst_element_set_state(m_pipeline, newState) == GST_STATE_CHANGE_FAILURE)
489 ORIGINATE_ERROR(
"Failed to set pause state");
494 #else // GST_SUPPORTED
495 ORIGINATE_ERROR(
"Not supported");
496 #endif // GST_SUPPORTED
503 ORIGINATE_ERROR(
"Video pipeline is not set up");
505 if (!gst_element_seek_simple(m_pipeline, GST_FORMAT_TIME,
506 static_cast<GstSeekFlags>(GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_KEY_UNIT), 0))
508 ORIGINATE_ERROR(
"Failed to rewind");
512 #else // GST_SUPPORTED
513 ORIGINATE_ERROR(
"Not supported");
514 #endif // GST_SUPPORTED
521 ORIGINATE_ERROR(
"Video pipeline is not set up");
523 if ((m_state == GST_STATE_PLAYING) || (m_state == GST_STATE_PAUSED))
526 GstElement *videoEncoder = gst_bin_get_by_name(GST_BIN(m_pipeline), s_videoEncoderName);
530 GstPad *pad = gst_element_get_static_pad(videoEncoder,
"sink");
532 ORIGINATE_ERROR(
"Failed to get 'sink' pad");
534 if (!gst_pad_send_event(pad, gst_event_new_eos()))
535 ORIGINATE_ERROR(
"Failed to send end of stream event encoder");
539 GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(m_pipeline));
541 ORIGINATE_ERROR(
"Failed to get bus");
543 if (!gst_bus_poll(bus, GST_MESSAGE_EOS, GST_CLOCK_TIME_NONE))
544 ORIGINATE_ERROR(
"Failed to wait for the eof event");
549 if (gst_element_set_state(m_pipeline, GST_STATE_NULL) != GST_STATE_CHANGE_SUCCESS)
550 ORIGINATE_ERROR(
"Failed to stop pipeline");
552 m_state = GST_STATE_NULL;
556 #else // GST_SUPPORTED
557 ORIGINATE_ERROR(
"Not supported");
558 #endif // GST_SUPPORTED
566 PROPAGATE_ERROR(
stop());
569 gst_object_unref(GST_OBJECT(m_pipeline));
575 #else // GST_SUPPORTED
576 ORIGINATE_ERROR(
"Not supported");
577 #endif // GST_SUPPORTED
598 return "Unhandled video file type";
603 if (aspectRatio == NULL)
604 ORIGINATE_ERROR(
"'aspectRatio' is NULL");
606 if ((m_state != GST_STATE_PLAYING) && (m_state != GST_STATE_PAUSED))
607 ORIGINATE_ERROR(
"Must be in paused or playing state.");
609 GstState state = GST_STATE_NULL;
610 while ((state != GST_STATE_PLAYING) && (state != GST_STATE_PAUSED))
612 if (gst_element_get_state(m_pipeline, &state, NULL, GST_CLOCK_TIME_NONE) ==
613 GST_STATE_CHANGE_FAILURE)
615 ORIGINATE_ERROR(
"gst_element_get_state failed");
620 GstElement *videoSink;
621 g_object_get(m_pipeline,
"video-sink", &videoSink, NULL);
623 ORIGINATE_ERROR(
"Failed to get video-sink");
626 GstPad *videoSinkPad = gst_element_get_static_pad(videoSink,
"sink");
628 ORIGINATE_ERROR(
"Failed to get video-sink pad");
630 GstCaps *caps = gst_pad_get_current_caps(videoSinkPad);
632 ORIGINATE_ERROR(
"Failed to get video-sink pad caps");
636 GstStructure *structure = gst_caps_get_structure(caps, 0);
639 gst_caps_unref(caps);
640 ORIGINATE_ERROR(
"Failed to get caps structure");
644 gint pixelAspectRatioNumerator, pixelAspectRatioDenominator;
646 if (!gst_structure_get_int(structure,
"width", &width) ||
647 !gst_structure_get_int(structure,
"height", &height) ||
648 !gst_structure_get_fraction(structure,
"pixel-aspect-ratio",
649 &pixelAspectRatioNumerator, &pixelAspectRatioDenominator))
651 gst_caps_unref(caps);
652 ORIGINATE_ERROR(
"Failed to get structure values");
655 *aspectRatio = (float)width / (
float)height;
656 *aspectRatio *= (float)pixelAspectRatioNumerator / (
float)pixelAspectRatioDenominator;
658 gst_caps_unref(caps);
661 #else // GST_SUPPORTED
662 ORIGINATE_ERROR(
"Not supported");
663 #endif // GST_SUPPORTED