1 /* GStreamer Muxer bin that splits output stream by size/time
2 * Copyright (C) <2014> Jan Schmidt <jan@centricular.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library 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 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
21 * SECTION:element-splitmuxsink
22 * @short_description: Muxer wrapper for splitting output stream by size or time
24 * This element wraps a muxer and a sink, and starts a new file when the mux
25 * contents are about to cross a threshold of maximum size of maximum time,
26 * splitting at video keyframe boundaries. Exactly one input video stream
27 * is required, with as many accompanying audio and subtitle streams as
30 * By default, it uses mp4mux and filesink, but they can be changed via
31 * the 'muxer' and 'sink' properties.
33 * The minimum file size is 1 GOP, however - so limits may be overrun if the
34 * distance between any 2 keyframes is larger than the limits.
36 * The splitting process is driven by the video stream contents, and
37 * the video stream must contain closed GOPs for the output file parts
38 * to be played individually correctly.
41 * <title>Example pipelines</title>
43 * gst-launch-1.0 -e v4l2src num-buffers=500 ! video/x-raw,width=320,height=240 ! videoconvert ! queue ! timeoverlay ! x264enc key-int-max=10 ! h264parse ! splitmuxsink location=video%02d.mov max-size-time=10000000000 max-size-bytes=1000000
45 * Records a video stream captured from a v4l2 device and muxes it into
46 * ISO mp4 files, splitting as needed to limit size/duration to 10 seconds
47 * and 1MB maximum size.
56 #include "gstsplitmuxsink.h"
58 GST_DEBUG_CATEGORY_STATIC (splitmux_debug);
59 #define GST_CAT_DEFAULT splitmux_debug
61 #define GST_SPLITMUX_LOCK(s) g_mutex_lock(&(s)->lock)
62 #define GST_SPLITMUX_UNLOCK(s) g_mutex_unlock(&(s)->lock)
63 #define GST_SPLITMUX_WAIT(s) g_cond_wait (&(s)->data_cond, &(s)->lock)
64 #define GST_SPLITMUX_BROADCAST(s) g_cond_broadcast (&(s)->data_cond)
77 #define DEFAULT_MAX_SIZE_TIME 0
78 #define DEFAULT_MAX_SIZE_BYTES 0
79 #define DEFAULT_MUXER_OVERHEAD 0.02
80 #define DEFAULT_MUXER "mp4mux"
81 #define DEFAULT_SINK "filesink"
83 static GstStaticPadTemplate video_sink_template =
84 GST_STATIC_PAD_TEMPLATE ("video",
88 static GstStaticPadTemplate audio_sink_template =
89 GST_STATIC_PAD_TEMPLATE ("audio_%u",
93 static GstStaticPadTemplate subtitle_sink_template =
94 GST_STATIC_PAD_TEMPLATE ("subtitle_%u",
99 static GQuark PAD_CONTEXT;
104 PAD_CONTEXT = g_quark_from_static_string ("pad-context");
107 #define gst_splitmux_sink_parent_class parent_class
108 G_DEFINE_TYPE_EXTENDED (GstSplitMuxSink, gst_splitmux_sink, GST_TYPE_BIN, 0,
111 static gboolean create_elements (GstSplitMuxSink * splitmux);
112 static gboolean create_sink (GstSplitMuxSink * splitmux);
113 static void gst_splitmux_sink_set_property (GObject * object, guint prop_id,
114 const GValue * value, GParamSpec * pspec);
115 static void gst_splitmux_sink_get_property (GObject * object, guint prop_id,
116 GValue * value, GParamSpec * pspec);
117 static void gst_splitmux_sink_dispose (GObject * object);
118 static void gst_splitmux_sink_finalize (GObject * object);
120 static GstPad *gst_splitmux_sink_request_new_pad (GstElement * element,
121 GstPadTemplate * templ, const gchar * name, const GstCaps * caps);
122 static void gst_splitmux_sink_release_pad (GstElement * element, GstPad * pad);
124 static GstStateChangeReturn gst_splitmux_sink_change_state (GstElement *
125 element, GstStateChange transition);
127 static void bus_handler (GstBin * bin, GstMessage * msg);
128 static void set_next_filename (GstSplitMuxSink * splitmux);
129 static void start_next_fragment (GstSplitMuxSink * splitmux);
130 static void check_queue_length (GstSplitMuxSink * splitmux, MqStreamCtx * ctx);
131 static void mq_stream_ctx_unref (MqStreamCtx * ctx);
134 mq_stream_buf_new (void)
136 return g_slice_new0 (MqStreamBuf);
140 mq_stream_buf_free (MqStreamBuf * data)
142 g_slice_free (MqStreamBuf, data);
146 gst_splitmux_sink_class_init (GstSplitMuxSinkClass * klass)
148 GObjectClass *gobject_class = (GObjectClass *) klass;
149 GstElementClass *gstelement_class = (GstElementClass *) klass;
150 GstBinClass *gstbin_class = (GstBinClass *) klass;
152 gobject_class->set_property = gst_splitmux_sink_set_property;
153 gobject_class->get_property = gst_splitmux_sink_get_property;
154 gobject_class->dispose = gst_splitmux_sink_dispose;
155 gobject_class->finalize = gst_splitmux_sink_finalize;
157 gst_element_class_set_static_metadata (gstelement_class,
158 "Split Muxing Bin", "Generic/Bin/Muxer",
159 "Convenience bin that muxes incoming streams into multiple time/size limited files",
160 "Jan Schmidt <jan@centricular.com>");
162 gst_element_class_add_pad_template (gstelement_class,
163 gst_static_pad_template_get (&video_sink_template));
164 gst_element_class_add_pad_template (gstelement_class,
165 gst_static_pad_template_get (&audio_sink_template));
166 gst_element_class_add_pad_template (gstelement_class,
167 gst_static_pad_template_get (&subtitle_sink_template));
169 gstelement_class->change_state =
170 GST_DEBUG_FUNCPTR (gst_splitmux_sink_change_state);
171 gstelement_class->request_new_pad =
172 GST_DEBUG_FUNCPTR (gst_splitmux_sink_request_new_pad);
173 gstelement_class->release_pad =
174 GST_DEBUG_FUNCPTR (gst_splitmux_sink_release_pad);
176 gstbin_class->handle_message = bus_handler;
178 g_object_class_install_property (gobject_class, PROP_LOCATION,
179 g_param_spec_string ("location", "File Output Pattern",
180 "Format string pattern for the location of the files to write (e.g. video%05d.mp4)",
181 NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
182 g_object_class_install_property (gobject_class, PROP_MUXER_OVERHEAD,
183 g_param_spec_double ("mux-overhead", "Muxing Overhead",
184 "Extra size overhead of muxing (0.02 = 2%)", 0.0, 1.0,
185 DEFAULT_MUXER_OVERHEAD,
186 G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
188 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_TIME,
189 g_param_spec_uint64 ("max-size-time", "Max. size (ns)",
190 "Max. amount of time per file (in ns, 0=disable)", 0, G_MAXUINT64,
191 DEFAULT_MAX_SIZE_TIME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
192 g_object_class_install_property (gobject_class, PROP_MAX_SIZE_BYTES,
193 g_param_spec_uint64 ("max-size-bytes", "Max. size bytes",
194 "Max. amount of data per file (in bytes, 0=disable)", 0, G_MAXUINT64,
195 DEFAULT_MAX_SIZE_BYTES, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
197 g_object_class_install_property (gobject_class, PROP_MUXER,
198 g_param_spec_object ("muxer", "Muxer",
199 "The muxer element to use (NULL = default mp4mux)",
200 GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
201 g_object_class_install_property (gobject_class, PROP_SINK,
202 g_param_spec_object ("sink", "Sink",
203 "The sink element (or element chain) to use (NULL = default filesink)",
204 GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
208 gst_splitmux_sink_init (GstSplitMuxSink * splitmux)
210 g_mutex_init (&splitmux->lock);
211 g_cond_init (&splitmux->data_cond);
213 splitmux->mux_overhead = DEFAULT_MUXER_OVERHEAD;
214 splitmux->threshold_time = DEFAULT_MAX_SIZE_TIME;
215 splitmux->threshold_bytes = DEFAULT_MAX_SIZE_BYTES;
217 GST_OBJECT_FLAG_SET (splitmux, GST_ELEMENT_FLAG_SINK);
221 gst_splitmux_reset (GstSplitMuxSink * splitmux)
224 gst_bin_remove (GST_BIN (splitmux), splitmux->mq);
226 gst_bin_remove (GST_BIN (splitmux), splitmux->muxer);
227 if (splitmux->active_sink)
228 gst_bin_remove (GST_BIN (splitmux), splitmux->active_sink);
230 splitmux->sink = splitmux->active_sink = splitmux->muxer = splitmux->mq =
235 gst_splitmux_sink_dispose (GObject * object)
237 GstSplitMuxSink *splitmux = GST_SPLITMUX_SINK (object);
239 G_OBJECT_CLASS (parent_class)->dispose (object);
241 /* Calling parent dispose invalidates all child pointers */
242 splitmux->sink = splitmux->active_sink = splitmux->muxer = splitmux->mq =
247 gst_splitmux_sink_finalize (GObject * object)
249 GstSplitMuxSink *splitmux = GST_SPLITMUX_SINK (object);
250 g_cond_clear (&splitmux->data_cond);
251 if (splitmux->provided_sink)
252 gst_object_unref (splitmux->provided_sink);
253 if (splitmux->provided_muxer)
254 gst_object_unref (splitmux->provided_muxer);
256 g_free (splitmux->location);
258 /* Make sure to free any un-released contexts */
259 g_list_foreach (splitmux->contexts, (GFunc) mq_stream_ctx_unref, NULL);
260 g_list_free (splitmux->contexts);
262 G_OBJECT_CLASS (parent_class)->finalize (object);
266 gst_splitmux_sink_set_property (GObject * object, guint prop_id,
267 const GValue * value, GParamSpec * pspec)
269 GstSplitMuxSink *splitmux = GST_SPLITMUX_SINK (object);
273 GST_OBJECT_LOCK (splitmux);
274 g_free (splitmux->location);
275 splitmux->location = g_value_dup_string (value);
276 GST_OBJECT_UNLOCK (splitmux);
279 case PROP_MAX_SIZE_BYTES:
280 GST_OBJECT_LOCK (splitmux);
281 splitmux->threshold_bytes = g_value_get_uint64 (value);
282 GST_OBJECT_UNLOCK (splitmux);
284 case PROP_MAX_SIZE_TIME:
285 GST_OBJECT_LOCK (splitmux);
286 splitmux->threshold_time = g_value_get_uint64 (value);
287 GST_OBJECT_UNLOCK (splitmux);
289 case PROP_MUXER_OVERHEAD:
290 GST_OBJECT_LOCK (splitmux);
291 splitmux->mux_overhead = g_value_get_double (value);
292 GST_OBJECT_UNLOCK (splitmux);
295 GST_OBJECT_LOCK (splitmux);
296 if (splitmux->provided_sink)
297 gst_object_unref (splitmux->provided_sink);
298 splitmux->provided_sink = g_value_dup_object (value);
299 GST_OBJECT_UNLOCK (splitmux);
302 GST_OBJECT_LOCK (splitmux);
303 if (splitmux->provided_muxer)
304 gst_object_unref (splitmux->provided_muxer);
305 splitmux->provided_muxer = g_value_dup_object (value);
306 GST_OBJECT_UNLOCK (splitmux);
309 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
315 gst_splitmux_sink_get_property (GObject * object, guint prop_id,
316 GValue * value, GParamSpec * pspec)
318 GstSplitMuxSink *splitmux = GST_SPLITMUX_SINK (object);
322 GST_OBJECT_LOCK (splitmux);
323 g_value_set_string (value, splitmux->location);
324 GST_OBJECT_UNLOCK (splitmux);
326 case PROP_MAX_SIZE_BYTES:
327 GST_OBJECT_LOCK (splitmux);
328 g_value_set_uint64 (value, splitmux->threshold_bytes);
329 GST_OBJECT_UNLOCK (splitmux);
331 case PROP_MAX_SIZE_TIME:
332 GST_OBJECT_LOCK (splitmux);
333 g_value_set_uint64 (value, splitmux->threshold_time);
334 GST_OBJECT_UNLOCK (splitmux);
336 case PROP_MUXER_OVERHEAD:
337 GST_OBJECT_LOCK (splitmux);
338 g_value_set_double (value, splitmux->mux_overhead);
339 GST_OBJECT_UNLOCK (splitmux);
342 GST_OBJECT_LOCK (splitmux);
343 g_value_set_object (value, splitmux->provided_sink);
344 GST_OBJECT_UNLOCK (splitmux);
347 GST_OBJECT_LOCK (splitmux);
348 g_value_set_object (value, splitmux->provided_muxer);
349 GST_OBJECT_UNLOCK (splitmux);
352 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
358 mq_sink_to_src (GstElement * mq, GstPad * sink_pad)
360 gchar *tmp, *sinkname, *srcname;
363 sinkname = gst_pad_get_name (sink_pad);
365 srcname = g_strdup_printf ("src_%s", tmp);
367 mq_src = gst_element_get_static_pad (mq, srcname);
376 get_pads_from_mq (GstSplitMuxSink * splitmux, GstPad ** sink_pad,
382 /* Request a pad from multiqueue, then connect this one, then
383 * discover the corresponding output pad and return both */
384 mq_sink = gst_element_get_request_pad (splitmux->mq, "sink_%u");
388 mq_src = mq_sink_to_src (splitmux->mq, mq_sink);
398 gst_element_release_request_pad (splitmux->mq, mq_sink);
403 mq_stream_ctx_new (GstSplitMuxSink * splitmux)
407 ctx = g_new0 (MqStreamCtx, 1);
408 g_atomic_int_set (&ctx->refcount, 1);
409 ctx->splitmux = splitmux;
410 gst_segment_init (&ctx->in_segment, GST_FORMAT_UNDEFINED);
411 gst_segment_init (&ctx->out_segment, GST_FORMAT_UNDEFINED);
412 ctx->in_running_time = ctx->out_running_time = 0;
413 g_queue_init (&ctx->queued_bufs);
418 mq_stream_ctx_free (MqStreamCtx * ctx)
420 g_queue_foreach (&ctx->queued_bufs, (GFunc) mq_stream_buf_free, NULL);
421 g_queue_clear (&ctx->queued_bufs);
426 mq_stream_ctx_unref (MqStreamCtx * ctx)
428 if (g_atomic_int_dec_and_test (&ctx->refcount))
429 mq_stream_ctx_free (ctx);
433 mq_stream_ctx_ref (MqStreamCtx * ctx)
435 g_atomic_int_inc (&ctx->refcount);
439 _pad_block_destroy_sink_notify (MqStreamCtx * ctx)
441 ctx->sink_pad_block_id = 0;
442 mq_stream_ctx_unref (ctx);
446 _pad_block_destroy_src_notify (MqStreamCtx * ctx)
448 ctx->src_pad_block_id = 0;
449 mq_stream_ctx_unref (ctx);
452 /* Called with lock held, drops the lock to send EOS to the
456 send_eos (GstSplitMuxSink * splitmux, MqStreamCtx * ctx)
461 eos = gst_event_new_eos ();
462 pad = gst_pad_get_peer (ctx->srcpad);
466 GST_INFO_OBJECT (splitmux, "Sending EOS on %" GST_PTR_FORMAT, pad);
467 GST_SPLITMUX_UNLOCK (splitmux);
468 gst_pad_send_event (pad, eos);
469 GST_SPLITMUX_LOCK (splitmux);
471 gst_object_unref (pad);
474 /* Called with splitmux lock held to check if this output
475 * context needs to sleep to wait for the release of the
476 * next GOP, or to send EOS to close out the current file
479 complete_or_wait_on_out (GstSplitMuxSink * splitmux, MqStreamCtx * ctx)
483 GST_LOG_OBJECT (ctx->srcpad,
484 "Checking running time %" GST_TIME_FORMAT " against max %"
485 GST_TIME_FORMAT, GST_TIME_ARGS (ctx->out_running_time),
486 GST_TIME_ARGS (splitmux->max_out_running_time));
488 if (splitmux->max_out_running_time == GST_CLOCK_TIME_NONE ||
489 ctx->out_running_time < splitmux->max_out_running_time)
492 if (ctx->flushing || splitmux->state == SPLITMUX_STATE_STOPPED)
495 if (splitmux->state == SPLITMUX_STATE_ENDING_FILE) {
496 if (ctx->out_eos == FALSE) {
497 send_eos (splitmux, ctx);
500 } else if (splitmux->state == SPLITMUX_STATE_START_NEXT_FRAGMENT) {
501 start_next_fragment (splitmux);
505 GST_INFO_OBJECT (ctx->srcpad,
506 "Sleeping for running time %"
507 GST_TIME_FORMAT " (max %" GST_TIME_FORMAT ")",
508 GST_TIME_ARGS (ctx->out_running_time),
509 GST_TIME_ARGS (splitmux->max_out_running_time));
510 ctx->out_blocked = TRUE;
511 /* Expand the mq if needed before sleeping */
512 check_queue_length (splitmux, ctx);
513 GST_SPLITMUX_WAIT (splitmux);
514 ctx->out_blocked = FALSE;
515 GST_INFO_OBJECT (ctx->srcpad,
516 "Woken for new max running time %" GST_TIME_FORMAT,
517 GST_TIME_ARGS (splitmux->max_out_running_time));
521 static GstPadProbeReturn
522 handle_mq_output (GstPad * pad, GstPadProbeInfo * info, MqStreamCtx * ctx)
524 GstSplitMuxSink *splitmux = ctx->splitmux;
525 MqStreamBuf *buf_info = NULL;
527 GST_LOG_OBJECT (pad, "Fired probe type 0x%x\n", info->type);
529 /* FIXME: Handle buffer lists, until then make it clear they won't work */
530 if (info->type & GST_PAD_PROBE_TYPE_BUFFER_LIST) {
531 g_warning ("Buffer list handling not implemented");
532 return GST_PAD_PROBE_DROP;
534 if (info->type & GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) {
535 GstEvent *event = gst_pad_probe_info_get_event (info);
537 GST_LOG_OBJECT (pad, "Event %" GST_PTR_FORMAT, event);
539 switch (GST_EVENT_TYPE (event)) {
540 case GST_EVENT_SEGMENT:
541 gst_event_copy_segment (event, &ctx->out_segment);
543 case GST_EVENT_FLUSH_STOP:
544 GST_SPLITMUX_LOCK (splitmux);
545 gst_segment_init (&ctx->out_segment, GST_FORMAT_UNDEFINED);
546 g_queue_foreach (&ctx->queued_bufs, (GFunc) mq_stream_buf_free, NULL);
547 g_queue_clear (&ctx->queued_bufs);
548 ctx->flushing = FALSE;
549 GST_SPLITMUX_UNLOCK (splitmux);
551 case GST_EVENT_FLUSH_START:
552 GST_SPLITMUX_LOCK (splitmux);
553 GST_LOG_OBJECT (pad, "Flush start");
554 ctx->flushing = TRUE;
555 GST_SPLITMUX_BROADCAST (splitmux);
556 GST_SPLITMUX_UNLOCK (splitmux);
559 GST_SPLITMUX_LOCK (splitmux);
560 if (splitmux->state == SPLITMUX_STATE_STOPPED)
563 GST_SPLITMUX_UNLOCK (splitmux);
568 gst_event_parse_gap (event, &gap_ts, NULL);
569 if (gap_ts == GST_CLOCK_TIME_NONE)
572 GST_SPLITMUX_LOCK (splitmux);
574 gap_ts = gst_segment_to_running_time (&ctx->out_segment,
575 GST_FORMAT_TIME, gap_ts);
577 GST_LOG_OBJECT (pad, "Have GAP w/ ts %" GST_TIME_FORMAT,
578 GST_TIME_ARGS (gap_ts));
580 if (splitmux->state == SPLITMUX_STATE_STOPPED)
582 ctx->out_running_time = gap_ts;
583 complete_or_wait_on_out (splitmux, ctx);
584 GST_SPLITMUX_UNLOCK (splitmux);
590 return GST_PAD_PROBE_PASS;
593 /* Allow everything through until the configured next stopping point */
594 GST_SPLITMUX_LOCK (splitmux);
596 buf_info = g_queue_pop_tail (&ctx->queued_bufs);
597 if (buf_info == NULL)
598 /* Can only happen due to a poorly timed flush */
601 /* If we have popped a keyframe, decrement the queued_gop count */
602 if (buf_info->keyframe && splitmux->queued_gops > 0)
603 splitmux->queued_gops--;
605 ctx->out_running_time = buf_info->run_ts;
607 GST_LOG_OBJECT (splitmux,
608 "Pad %" GST_PTR_FORMAT " buffer with TS %" GST_TIME_FORMAT
609 " size %" G_GSIZE_FORMAT,
610 pad, GST_TIME_ARGS (ctx->out_running_time), buf_info->buf_size);
612 complete_or_wait_on_out (splitmux, ctx);
614 if (splitmux->muxed_out_time == GST_CLOCK_TIME_NONE ||
615 splitmux->muxed_out_time < buf_info->run_ts)
616 splitmux->muxed_out_time = buf_info->run_ts;
618 splitmux->muxed_out_bytes += buf_info->buf_size;
620 #ifndef GST_DISABLE_GST_DEBUG
622 GstBuffer *buf = gst_pad_probe_info_get_buffer (info);
623 GST_LOG_OBJECT (pad, "Returning to pass buffer %" GST_PTR_FORMAT
624 " run ts %" GST_TIME_FORMAT, buf,
625 GST_TIME_ARGS (ctx->out_running_time));
629 GST_SPLITMUX_UNLOCK (splitmux);
631 mq_stream_buf_free (buf_info);
633 return GST_PAD_PROBE_PASS;
636 GST_SPLITMUX_UNLOCK (splitmux);
637 return GST_PAD_PROBE_DROP;
641 resend_sticky (GstPad * pad, GstEvent ** event, GstPad * peer)
643 return gst_pad_send_event (peer, gst_event_ref (*event));
647 restart_context (MqStreamCtx * ctx, GstSplitMuxSink * splitmux)
649 GstPad *peer = gst_pad_get_peer (ctx->srcpad);
651 gst_pad_sticky_events_foreach (ctx->srcpad,
652 (GstPadStickyEventsForeachFunction) (resend_sticky), peer);
655 ctx->out_eos = FALSE;
657 gst_object_unref (peer);
660 /* Called with lock held when a fragment
661 * reaches EOS and it is time to restart
665 start_next_fragment (GstSplitMuxSink * splitmux)
667 /* 1 change to new file */
668 gst_element_set_state (splitmux->muxer, GST_STATE_NULL);
669 gst_element_set_state (splitmux->active_sink, GST_STATE_NULL);
671 set_next_filename (splitmux);
673 gst_element_sync_state_with_parent (splitmux->active_sink);
674 gst_element_sync_state_with_parent (splitmux->muxer);
676 g_list_foreach (splitmux->contexts, (GFunc) restart_context, splitmux);
678 /* Switch state and go back to processing */
679 splitmux->state = SPLITMUX_STATE_COLLECTING_GOP_START;
680 if (!splitmux->video_ctx->in_eos)
681 splitmux->max_out_running_time = splitmux->video_ctx->in_running_time;
683 splitmux->max_out_running_time = GST_CLOCK_TIME_NONE;
685 /* Store the overflow parameters as the basis for the next fragment */
686 splitmux->mux_start_time = splitmux->muxed_out_time;
687 splitmux->mux_start_bytes = splitmux->muxed_out_bytes;
689 GST_DEBUG_OBJECT (splitmux,
690 "Restarting flow for new fragment. New running time %" GST_TIME_FORMAT,
691 GST_TIME_ARGS (splitmux->max_out_running_time));
693 GST_SPLITMUX_BROADCAST (splitmux);
697 bus_handler (GstBin * bin, GstMessage * message)
699 GstSplitMuxSink *splitmux = GST_SPLITMUX_SINK (bin);
701 switch (GST_MESSAGE_TYPE (message)) {
702 case GST_MESSAGE_EOS:
703 /* If the state is draining out the current file, drop this EOS */
704 GST_SPLITMUX_LOCK (splitmux);
705 if (splitmux->state == SPLITMUX_STATE_ENDING_FILE &&
706 splitmux->max_out_running_time != GST_CLOCK_TIME_NONE) {
707 GST_DEBUG_OBJECT (splitmux, "Caught EOS at end of fragment, dropping");
708 splitmux->state = SPLITMUX_STATE_START_NEXT_FRAGMENT;
709 GST_SPLITMUX_BROADCAST (splitmux);
711 gst_message_unref (message);
712 GST_SPLITMUX_UNLOCK (splitmux);
715 GST_SPLITMUX_UNLOCK (splitmux);
721 GST_BIN_CLASS (parent_class)->handle_message (bin, message);
724 /* Called with splitmux lock held */
725 /* Called when entering ProcessingCompleteGop state
726 * Assess if mq contents overflowed the current file
727 * -> If yes, need to switch to new file
728 * -> if no, set max_out_running_time to let this GOP in and
729 * go to COLLECTING_GOP_START state
732 handle_gathered_gop (GstSplitMuxSink * splitmux)
735 gsize queued_bytes = 0;
736 GstClockTime queued_time = 0;
738 /* Assess if the multiqueue contents overflowed the current file */
739 for (cur = g_list_first (splitmux->contexts);
740 cur != NULL; cur = g_list_next (cur)) {
741 MqStreamCtx *tmpctx = (MqStreamCtx *) (cur->data);
742 if (tmpctx->in_running_time > queued_time)
743 queued_time = tmpctx->in_running_time;
744 queued_bytes += tmpctx->in_bytes;
747 g_assert (queued_bytes >= splitmux->mux_start_bytes);
748 g_assert (queued_time >= splitmux->mux_start_time);
750 queued_bytes -= splitmux->mux_start_bytes;
751 queued_time -= splitmux->mux_start_time;
753 /* Expand queued bytes estimate by muxer overhead */
754 queued_bytes += (queued_bytes * splitmux->mux_overhead);
756 GST_LOG_OBJECT (splitmux, "mq at TS %" GST_TIME_FORMAT
757 " bytes %" G_GSIZE_FORMAT, GST_TIME_ARGS (queued_time), queued_bytes);
759 /* Check for overrun - have we output at least one byte and overrun
760 * either threshold? */
761 if ((splitmux->mux_start_bytes < splitmux->muxed_out_bytes) &&
762 ((splitmux->threshold_bytes > 0 &&
763 queued_bytes >= splitmux->threshold_bytes) ||
764 (splitmux->threshold_time > 0 &&
765 queued_time >= splitmux->threshold_time))) {
767 splitmux->state = SPLITMUX_STATE_ENDING_FILE;
769 GST_INFO_OBJECT (splitmux,
770 "mq overflowed since last, draining out. max out TS is %"
771 GST_TIME_FORMAT, GST_TIME_ARGS (splitmux->max_out_running_time));
772 GST_SPLITMUX_BROADCAST (splitmux);
776 GST_LOG_OBJECT (splitmux,
777 "This GOP didn't overflow the fragment. Bytes sent %" G_GSIZE_FORMAT
778 " queued %" G_GSIZE_FORMAT " time %" GST_TIME_FORMAT " Continuing.",
779 splitmux->muxed_out_bytes - splitmux->mux_start_bytes,
780 queued_bytes, GST_TIME_ARGS (queued_time));
782 /* Wake everyone up to push this one GOP, then sleep */
783 splitmux->state = SPLITMUX_STATE_COLLECTING_GOP_START;
784 if (!splitmux->video_ctx->in_eos)
785 splitmux->max_out_running_time = splitmux->video_ctx->in_running_time;
787 splitmux->max_out_running_time = GST_CLOCK_TIME_NONE;
789 GST_LOG_OBJECT (splitmux, "Waking output for complete GOP, TS %"
790 GST_TIME_FORMAT, GST_TIME_ARGS (splitmux->max_out_running_time));
791 GST_SPLITMUX_BROADCAST (splitmux);
796 /* Called with splitmux lock held */
797 /* Called from each input pad when it is has all the pieces
798 * for a GOP or EOS, starting with the video pad which has set the
799 * splitmux->max_in_running_time
802 check_completed_gop (GstSplitMuxSink * splitmux, MqStreamCtx * ctx)
805 gboolean ready = TRUE;
807 if (splitmux->state == SPLITMUX_STATE_WAITING_GOP_COMPLETE) {
808 /* Iterate each pad, and check that the input running time is at least
809 * up to the video runnning time, and if so handle the collected GOP */
810 GST_LOG_OBJECT (splitmux, "Checking GOP collected, ctx %p", ctx);
811 for (cur = g_list_first (splitmux->contexts);
812 cur != NULL; cur = g_list_next (cur)) {
813 MqStreamCtx *tmpctx = (MqStreamCtx *) (cur->data);
815 GST_LOG_OBJECT (splitmux,
816 "Context %p (src pad %" GST_PTR_FORMAT ") TS %" GST_TIME_FORMAT
817 " EOS %d", tmpctx, tmpctx->srcpad,
818 GST_TIME_ARGS (tmpctx->in_running_time), tmpctx->in_eos);
820 if (tmpctx->in_running_time < splitmux->max_in_running_time &&
822 GST_LOG_OBJECT (splitmux,
823 "Context %p (src pad %" GST_PTR_FORMAT ") not ready. We'll sleep",
824 tmpctx, tmpctx->srcpad);
830 GST_DEBUG_OBJECT (splitmux,
831 "Collected GOP is complete. Processing (ctx %p)", ctx);
832 /* All pads have a complete GOP, release it into the multiqueue */
833 handle_gathered_gop (splitmux);
837 /* Some pad is not yet ready, or GOP is being pushed
838 * either way, sleep and wait to get woken */
839 while ((splitmux->state == SPLITMUX_STATE_WAITING_GOP_COMPLETE ||
840 splitmux->state == SPLITMUX_STATE_START_NEXT_FRAGMENT) &&
843 GST_LOG_OBJECT (splitmux, "Sleeping for %s (ctx %p)",
844 splitmux->state == SPLITMUX_STATE_WAITING_GOP_COMPLETE ?
845 "GOP complete" : "EOF draining", ctx);
846 GST_SPLITMUX_WAIT (splitmux);
848 GST_LOG_OBJECT (splitmux, "Done waiting for complete GOP (ctx %p)", ctx);
853 check_queue_length (GstSplitMuxSink * splitmux, MqStreamCtx * ctx)
856 guint cur_len = g_queue_get_length (&ctx->queued_bufs);
858 GST_DEBUG_OBJECT (ctx->sinkpad,
859 "Checking queue length len %u cur_max %u queued gops %u",
860 cur_len, splitmux->mq_max_buffers, splitmux->queued_gops);
862 if (cur_len >= splitmux->mq_max_buffers) {
863 gboolean allow_grow = FALSE;
865 /* If collecting a GOP and this pad might block,
866 * and there isn't already a pending GOP in the queue
869 if (splitmux->state == SPLITMUX_STATE_WAITING_GOP_COMPLETE &&
870 ctx->in_running_time < splitmux->max_in_running_time &&
871 splitmux->queued_gops <= 1) {
873 } else if (splitmux->state == SPLITMUX_STATE_COLLECTING_GOP_START &&
879 for (cur = g_list_first (splitmux->contexts);
880 cur != NULL; cur = g_list_next (cur)) {
881 MqStreamCtx *tmpctx = (MqStreamCtx *) (cur->data);
882 GST_DEBUG_OBJECT (tmpctx->sinkpad,
883 " len %u out_blocked %d",
884 g_queue_get_length (&tmpctx->queued_bufs), tmpctx->out_blocked);
885 /* If another stream is starving, grow */
886 if (tmpctx != ctx && g_queue_get_length (&tmpctx->queued_bufs) < 1) {
893 splitmux->mq_max_buffers = cur_len + 1;
895 GST_INFO_OBJECT (splitmux,
896 "Multiqueue overrun - enlarging to %u buffers ctx %p",
897 splitmux->mq_max_buffers, ctx);
899 g_object_set (splitmux->mq, "max-size-buffers",
900 splitmux->mq_max_buffers, NULL);
905 static GstPadProbeReturn
906 handle_mq_input (GstPad * pad, GstPadProbeInfo * info, MqStreamCtx * ctx)
908 GstSplitMuxSink *splitmux = ctx->splitmux;
910 MqStreamBuf *buf_info = NULL;
913 gboolean keyframe = FALSE;
915 GST_LOG_OBJECT (pad, "Fired probe type 0x%x\n", info->type);
917 /* FIXME: Handle buffer lists, until then make it clear they won't work */
918 if (info->type & GST_PAD_PROBE_TYPE_BUFFER_LIST) {
919 g_warning ("Buffer list handling not implemented");
920 return GST_PAD_PROBE_DROP;
922 if (info->type & GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) {
923 GstEvent *event = gst_pad_probe_info_get_event (info);
924 switch (GST_EVENT_TYPE (event)) {
925 case GST_EVENT_SEGMENT:
926 gst_event_copy_segment (event, &ctx->in_segment);
928 case GST_EVENT_FLUSH_STOP:
929 GST_SPLITMUX_LOCK (splitmux);
930 gst_segment_init (&ctx->in_segment, GST_FORMAT_UNDEFINED);
933 ctx->in_running_time = 0;
934 GST_SPLITMUX_UNLOCK (splitmux);
937 GST_SPLITMUX_LOCK (splitmux);
940 if (splitmux->state == SPLITMUX_STATE_STOPPED)
944 GST_INFO_OBJECT (splitmux, "Got Video EOS. Finishing up");
945 /* Act as if this is a new keyframe with infinite timestamp */
946 splitmux->max_in_running_time = GST_CLOCK_TIME_NONE;
947 splitmux->state = SPLITMUX_STATE_WAITING_GOP_COMPLETE;
948 /* Wake up other input pads to collect this GOP */
949 GST_SPLITMUX_BROADCAST (splitmux);
950 check_completed_gop (splitmux, ctx);
951 } else if (splitmux->state == SPLITMUX_STATE_WAITING_GOP_COMPLETE) {
952 /* If we are waiting for a GOP to be completed (ie, for aux
953 * pads to catch up), then this pad is complete, so check
954 * if the whole GOP is.
956 check_completed_gop (splitmux, ctx);
958 GST_SPLITMUX_UNLOCK (splitmux);
963 return GST_PAD_PROBE_PASS;
966 buf = gst_pad_probe_info_get_buffer (info);
967 ctx->in_running_time = gst_segment_to_running_time (&ctx->in_segment,
968 GST_FORMAT_TIME, GST_BUFFER_TIMESTAMP (buf));
969 buf_info = mq_stream_buf_new ();
971 if (GST_BUFFER_PTS_IS_VALID (buf))
972 ts = GST_BUFFER_PTS (buf);
974 ts = GST_BUFFER_DTS (buf);
976 GST_SPLITMUX_LOCK (splitmux);
978 if (splitmux->state == SPLITMUX_STATE_STOPPED)
981 /* If this buffer has a timestamp, advance the input timestamp of the
983 if (GST_CLOCK_TIME_IS_VALID (ts)) {
984 GstClockTime running_time =
985 gst_segment_to_running_time (&ctx->in_segment, GST_FORMAT_TIME,
986 GST_BUFFER_TIMESTAMP (buf));
988 if (GST_CLOCK_TIME_IS_VALID (running_time) &&
989 (ctx->in_running_time == GST_CLOCK_TIME_NONE
990 || running_time > ctx->in_running_time))
991 ctx->in_running_time = running_time;
994 /* Try to make sure we have a valid running time */
995 if (!GST_CLOCK_TIME_IS_VALID (ctx->in_running_time)) {
996 ctx->in_running_time =
997 gst_segment_to_running_time (&ctx->in_segment, GST_FORMAT_TIME,
998 ctx->in_segment.start);
1001 buf_info->run_ts = ctx->in_running_time;
1002 buf_info->buf_size = gst_buffer_get_size (buf);
1004 /* Update total input byte counter for overflow detect */
1005 ctx->in_bytes += buf_info->buf_size;
1007 GST_DEBUG_OBJECT (pad, "Buf TS %" GST_TIME_FORMAT
1008 " total in_bytes %" G_GSIZE_FORMAT,
1009 GST_TIME_ARGS (buf_info->run_ts), ctx->in_bytes);
1016 switch (splitmux->state) {
1017 case SPLITMUX_STATE_COLLECTING_GOP_START:
1018 if (ctx->is_video) {
1019 /* If a keyframe, we have a complete GOP */
1020 if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT) ||
1021 !GST_CLOCK_TIME_IS_VALID (ctx->in_running_time) ||
1022 splitmux->max_in_running_time >= ctx->in_running_time) {
1023 /* Pass this buffer through */
1027 GST_INFO_OBJECT (pad,
1028 "Have keyframe with running time %" GST_TIME_FORMAT,
1029 GST_TIME_ARGS (ctx->in_running_time));
1031 splitmux->state = SPLITMUX_STATE_WAITING_GOP_COMPLETE;
1032 splitmux->max_in_running_time = ctx->in_running_time;
1033 /* Wake up other input pads to collect this GOP */
1034 GST_SPLITMUX_BROADCAST (splitmux);
1035 check_completed_gop (splitmux, ctx);
1037 /* We're still waiting for a keyframe on the video pad, sleep */
1038 GST_LOG_OBJECT (pad, "Sleeping for GOP start");
1039 GST_SPLITMUX_WAIT (splitmux);
1040 GST_LOG_OBJECT (pad, "Done sleeping for GOP start state now %d",
1044 case SPLITMUX_STATE_WAITING_GOP_COMPLETE:
1045 /* After a GOP start is found, this buffer might complete the GOP */
1046 /* If we overran the target timestamp, it might be time to process
1047 * the GOP, otherwise bail out for more data
1049 GST_LOG_OBJECT (pad,
1050 "Checking TS %" GST_TIME_FORMAT " against max %" GST_TIME_FORMAT,
1051 GST_TIME_ARGS (ctx->in_running_time),
1052 GST_TIME_ARGS (splitmux->max_in_running_time));
1054 if (ctx->in_running_time < splitmux->max_in_running_time) {
1059 GST_LOG_OBJECT (pad,
1060 "Collected last packet of GOP. Checking other pads");
1061 check_completed_gop (splitmux, ctx);
1063 case SPLITMUX_STATE_ENDING_FILE:
1064 case SPLITMUX_STATE_START_NEXT_FRAGMENT:
1065 /* A fragment is ending, wait until that's done before continuing */
1066 GST_DEBUG_OBJECT (pad, "Sleeping for fragment restart");
1067 GST_SPLITMUX_WAIT (splitmux);
1068 GST_DEBUG_OBJECT (pad,
1069 "Done sleeping for fragment restart state now %d", splitmux->state);
1075 } while (loop_again);
1078 splitmux->queued_gops++;
1079 buf_info->keyframe = TRUE;
1082 /* Now add this buffer to the queue just before returning */
1083 g_queue_push_head (&ctx->queued_bufs, buf_info);
1085 /* Check the buffer will fit in the mq */
1086 check_queue_length (splitmux, ctx);
1088 GST_LOG_OBJECT (pad, "Returning to queue buffer %" GST_PTR_FORMAT
1089 " run ts %" GST_TIME_FORMAT, buf, GST_TIME_ARGS (ctx->in_running_time));
1091 GST_SPLITMUX_UNLOCK (splitmux);
1092 return GST_PAD_PROBE_PASS;
1095 GST_SPLITMUX_UNLOCK (splitmux);
1097 mq_stream_buf_free (buf_info);
1098 return GST_PAD_PROBE_PASS;
1102 gst_splitmux_sink_request_new_pad (GstElement * element,
1103 GstPadTemplate * templ, const gchar * name, const GstCaps * caps)
1105 GstSplitMuxSink *splitmux = (GstSplitMuxSink *) element;
1106 GstPadTemplate *mux_template = NULL;
1108 GstPad *mq_sink, *mq_src;
1110 gboolean is_video = FALSE;
1113 GST_DEBUG_OBJECT (element, "templ:%s, name:%s", templ->name_template, name);
1115 GST_SPLITMUX_LOCK (splitmux);
1116 if (!create_elements (splitmux))
1119 if (templ->name_template) {
1120 if (g_str_equal (templ->name_template, "video")) {
1121 /* FIXME: Look for a pad template with matching caps, rather than by name */
1123 gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS
1124 (splitmux->muxer), "video_%u");
1129 gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS
1130 (splitmux->muxer), templ->name_template);
1134 res = gst_element_request_pad (splitmux->muxer, mux_template, name, caps);
1139 gname = g_strdup ("video");
1140 else if (name == NULL)
1141 gname = gst_pad_get_name (res);
1143 gname = g_strdup (name);
1145 if (!get_pads_from_mq (splitmux, &mq_sink, &mq_src)) {
1146 gst_element_release_request_pad (splitmux->muxer, res);
1147 gst_object_unref (GST_OBJECT (res));
1151 if (gst_pad_link (mq_src, res) != GST_PAD_LINK_OK) {
1152 gst_element_release_request_pad (splitmux->muxer, res);
1153 gst_object_unref (GST_OBJECT (res));
1154 gst_element_release_request_pad (splitmux->mq, mq_sink);
1155 gst_object_unref (GST_OBJECT (mq_sink));
1159 gst_object_unref (GST_OBJECT (res));
1161 ctx = mq_stream_ctx_new (splitmux);
1162 ctx->is_video = is_video;
1163 ctx->srcpad = mq_src;
1164 ctx->sinkpad = mq_sink;
1166 mq_stream_ctx_ref (ctx);
1167 ctx->src_pad_block_id =
1168 gst_pad_add_probe (mq_src, GST_PAD_PROBE_TYPE_DATA_DOWNSTREAM,
1169 (GstPadProbeCallback) handle_mq_output, ctx, (GDestroyNotify)
1170 _pad_block_destroy_src_notify);
1172 splitmux->video_ctx = ctx;
1174 res = gst_ghost_pad_new (gname, mq_sink);
1175 g_object_set_qdata ((GObject *) (res), PAD_CONTEXT, ctx);
1177 mq_stream_ctx_ref (ctx);
1178 ctx->sink_pad_block_id =
1179 gst_pad_add_probe (res, GST_PAD_PROBE_TYPE_DATA_DOWNSTREAM,
1180 (GstPadProbeCallback) handle_mq_input, ctx, (GDestroyNotify)
1181 _pad_block_destroy_sink_notify);
1183 GST_DEBUG_OBJECT (splitmux, "Request pad %" GST_PTR_FORMAT
1184 " is mq pad %" GST_PTR_FORMAT, res, mq_sink);
1186 splitmux->contexts = g_list_prepend (splitmux->contexts, ctx);
1190 gst_object_unref (mq_sink);
1191 gst_object_unref (mq_src);
1193 gst_pad_set_active (res, TRUE);
1194 gst_element_add_pad (element, res);
1195 GST_SPLITMUX_UNLOCK (splitmux);
1199 GST_SPLITMUX_UNLOCK (splitmux);
1204 gst_splitmux_sink_release_pad (GstElement * element, GstPad * pad)
1206 GstSplitMuxSink *splitmux = (GstSplitMuxSink *) element;
1207 GstPad *mqsink, *mqsrc, *muxpad;
1209 (MqStreamCtx *) (g_object_get_qdata ((GObject *) (pad), PAD_CONTEXT));
1211 GST_SPLITMUX_LOCK (splitmux);
1213 if (splitmux->muxer == NULL || splitmux->mq == NULL)
1214 goto fail; /* Elements don't exist yet - nothing to release */
1216 GST_INFO_OBJECT (pad, "releasing request pad");
1218 mqsink = gst_ghost_pad_get_target (GST_GHOST_PAD (pad));
1219 mqsrc = mq_sink_to_src (splitmux->mq, mqsink);
1220 muxpad = gst_pad_get_peer (mqsrc);
1222 /* Remove the context from our consideration */
1223 splitmux->contexts = g_list_remove (splitmux->contexts, ctx);
1225 if (ctx->sink_pad_block_id)
1226 gst_pad_remove_probe (ctx->sinkpad, ctx->sink_pad_block_id);
1228 if (ctx->src_pad_block_id)
1229 gst_pad_remove_probe (ctx->srcpad, ctx->src_pad_block_id);
1231 /* Can release the context now */
1232 mq_stream_ctx_unref (ctx);
1234 /* Release and free the mq input */
1235 gst_element_release_request_pad (splitmux->mq, mqsink);
1237 /* Release and free the muxer input */
1238 gst_element_release_request_pad (splitmux->muxer, muxpad);
1240 gst_object_unref (mqsink);
1241 gst_object_unref (mqsrc);
1242 gst_object_unref (muxpad);
1244 gst_element_remove_pad (element, pad);
1247 GST_SPLITMUX_UNLOCK (splitmux);
1251 create_element (GstSplitMuxSink * splitmux,
1252 const gchar * factory, const gchar * name)
1254 GstElement *ret = gst_element_factory_make (factory, name);
1256 g_warning ("Failed to create %s - splitmuxsink will not work", name);
1260 if (!gst_bin_add (GST_BIN (splitmux), ret)) {
1261 g_warning ("Could not add %s element - splitmuxsink will not work", name);
1262 gst_object_unref (ret);
1270 create_elements (GstSplitMuxSink * splitmux)
1272 /* Create internal elements */
1273 if (splitmux->mq == NULL) {
1275 create_element (splitmux, "multiqueue", "multiqueue")) == NULL)
1278 splitmux->mq_max_buffers = 5;
1279 /* No bytes or time limit, we limit buffers manually */
1280 g_object_set (splitmux->mq, "max-size-bytes", 0, "max-size-time",
1281 (guint64) 0, "max-size-buffers", splitmux->mq_max_buffers, NULL);
1284 if (splitmux->muxer == NULL) {
1285 GstElement *provided_muxer = NULL;
1287 GST_OBJECT_LOCK (splitmux);
1288 if (splitmux->provided_muxer != NULL)
1289 provided_muxer = gst_object_ref (splitmux->provided_muxer);
1290 GST_OBJECT_UNLOCK (splitmux);
1292 if (provided_muxer == NULL) {
1293 if ((splitmux->muxer =
1294 create_element (splitmux, "mp4mux", "muxer")) == NULL)
1297 if (!gst_bin_add (GST_BIN (splitmux), splitmux->provided_muxer)) {
1298 g_warning ("Could not add muxer element - splitmuxsink will not work");
1299 gst_object_unref (provided_muxer);
1303 splitmux->muxer = provided_muxer;
1304 gst_object_unref (provided_muxer);
1314 find_sink (GstElement * e)
1316 GstElement *res = NULL;
1318 gboolean done = FALSE;
1319 GValue data = { 0, };
1321 if (!GST_IS_BIN (e))
1324 iter = gst_bin_iterate_sinks (GST_BIN (e));
1326 switch (gst_iterator_next (iter, &data)) {
1327 case GST_ITERATOR_OK:
1329 GstElement *child = g_value_get_object (&data);
1330 if (g_object_class_find_property (G_OBJECT_GET_CLASS (child),
1331 "location") != NULL) {
1335 g_value_reset (&data);
1338 case GST_ITERATOR_RESYNC:
1339 gst_iterator_resync (iter);
1341 case GST_ITERATOR_DONE:
1344 case GST_ITERATOR_ERROR:
1345 g_assert_not_reached ();
1349 g_value_unset (&data);
1350 gst_iterator_free (iter);
1356 create_sink (GstSplitMuxSink * splitmux)
1358 GstElement *provided_sink = NULL;
1360 g_return_val_if_fail (splitmux->active_sink == NULL, TRUE);
1362 GST_OBJECT_LOCK (splitmux);
1363 if (splitmux->provided_sink != NULL)
1364 provided_sink = gst_object_ref (splitmux->provided_sink);
1365 GST_OBJECT_UNLOCK (splitmux);
1367 if (provided_sink == NULL) {
1368 if ((splitmux->sink =
1369 create_element (splitmux, DEFAULT_SINK, "sink")) == NULL)
1371 splitmux->active_sink = splitmux->sink;
1373 if (!gst_bin_add (GST_BIN (splitmux), provided_sink)) {
1374 g_warning ("Could not add sink elements - splitmuxsink will not work");
1375 gst_object_unref (provided_sink);
1379 splitmux->active_sink = provided_sink;
1381 /* The bin holds a ref now, we can drop our tmp ref */
1382 gst_object_unref (provided_sink);
1384 /* Find the sink element */
1385 splitmux->sink = find_sink (splitmux->active_sink);
1386 if (splitmux->sink == NULL) {
1388 ("Could not locate sink element in provided sink - splitmuxsink will not work");
1393 if (!gst_element_link (splitmux->muxer, splitmux->active_sink)) {
1394 g_warning ("Failed to link muxer and sink- splitmuxsink will not work");
1404 #pragma GCC diagnostic ignored "-Wformat-nonliteral"
1407 set_next_filename (GstSplitMuxSink * splitmux)
1409 if (splitmux->location) {
1412 fname = g_strdup_printf (splitmux->location, splitmux->fragment_id);
1413 GST_INFO_OBJECT (splitmux, "Setting file to %s", fname);
1414 g_object_set (splitmux->sink, "location", fname, NULL);
1417 splitmux->fragment_id++;
1421 static GstStateChangeReturn
1422 gst_splitmux_sink_change_state (GstElement * element, GstStateChange transition)
1424 GstStateChangeReturn ret;
1425 GstSplitMuxSink *splitmux = (GstSplitMuxSink *) element;
1427 switch (transition) {
1428 case GST_STATE_CHANGE_NULL_TO_READY:{
1429 GST_SPLITMUX_LOCK (splitmux);
1430 if (!create_elements (splitmux) || !create_sink (splitmux)) {
1431 ret = GST_STATE_CHANGE_FAILURE;
1432 GST_SPLITMUX_UNLOCK (splitmux);
1435 GST_SPLITMUX_UNLOCK (splitmux);
1436 splitmux->fragment_id = 0;
1437 set_next_filename (splitmux);
1440 case GST_STATE_CHANGE_READY_TO_PAUSED:{
1441 GST_SPLITMUX_LOCK (splitmux);
1442 /* Start by collecting one input on each pad */
1443 splitmux->state = SPLITMUX_STATE_COLLECTING_GOP_START;
1444 splitmux->max_in_running_time = 0;
1445 splitmux->muxed_out_time = splitmux->mux_start_time = 0;
1446 splitmux->muxed_out_bytes = splitmux->mux_start_bytes = 0;
1447 GST_SPLITMUX_UNLOCK (splitmux);
1450 case GST_STATE_CHANGE_PAUSED_TO_READY:
1451 case GST_STATE_CHANGE_READY_TO_NULL:
1452 GST_SPLITMUX_LOCK (splitmux);
1453 splitmux->state = SPLITMUX_STATE_STOPPED;
1454 /* Wake up any blocked threads */
1455 GST_LOG_OBJECT (splitmux,
1456 "State change -> NULL or READY. Waking threads");
1457 GST_SPLITMUX_BROADCAST (splitmux);
1458 GST_SPLITMUX_UNLOCK (splitmux);
1464 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
1465 if (ret == GST_STATE_CHANGE_FAILURE)
1468 switch (transition) {
1469 case GST_STATE_CHANGE_READY_TO_NULL:
1470 GST_SPLITMUX_LOCK (splitmux);
1471 splitmux->fragment_id = 0;
1472 gst_splitmux_reset (splitmux);
1473 GST_SPLITMUX_UNLOCK (splitmux);
1481 if (transition == GST_STATE_CHANGE_NULL_TO_READY &&
1482 ret == GST_STATE_CHANGE_FAILURE) {
1483 /* Cleanup elements on failed transition out of NULL */
1484 gst_splitmux_reset (splitmux);
1490 register_splitmuxsink (GstPlugin * plugin)
1492 GST_DEBUG_CATEGORY_INIT (splitmux_debug, "splitmuxsink", 0,
1493 "Split File Muxing Sink");
1495 return gst_element_register (plugin, "splitmuxsink", GST_RANK_NONE,
1496 GST_TYPE_SPLITMUX_SINK);