mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 09:10:36 +00:00
952f252104
In `parse_chain_output_probe()` the corresponding input stream might receive EOS and thus be removed before the actual pad is removed. So we cannot assert about this in `parsebin_pad_removed_cb()`. Also, driving-by, protect `find_input_stream_for_pad()` with the selection lock similarly to other functions accessing the input streams list. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5887>
609 lines
19 KiB
C
609 lines
19 KiB
C
/* GStreamer
|
|
*
|
|
* Copyright (C) <2015> Centricular Ltd
|
|
* @author: Edward Hervey <edward@centricular.com>
|
|
* @author: Jan Schmidt <jan@centricular.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#if 0
|
|
/* Not needed for now - we're including gstdecodebin3-parse.c into gstdecodebin3.c */
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <glib.h>
|
|
#include <glib-object.h>
|
|
#include <glib/gprintf.h>
|
|
#include <gst/gst.h>
|
|
#include <gst/pbutils/pbutils.h>
|
|
|
|
#include "gstplayback.h"
|
|
#endif
|
|
|
|
#define CUSTOM_EOS_QUARK _custom_eos_quark_get ()
|
|
#define CUSTOM_EOS_QUARK_DATA "custom-eos"
|
|
static GQuark
|
|
_custom_eos_quark_get (void)
|
|
{
|
|
static gsize g_quark;
|
|
|
|
if (g_once_init_enter (&g_quark)) {
|
|
gsize quark = (gsize) g_quark_from_static_string ("decodebin3-custom-eos");
|
|
g_once_init_leave (&g_quark, quark);
|
|
}
|
|
return g_quark;
|
|
}
|
|
|
|
/* Streams that come from parsebin or identity */
|
|
/* FIXME : All this is hardcoded. Switch to tree of chains */
|
|
struct _DecodebinInputStream
|
|
{
|
|
GstDecodebin3 *dbin;
|
|
|
|
GstStream *active_stream;
|
|
|
|
DecodebinInput *input;
|
|
|
|
GstPad *srcpad; /* From parsebin or identity */
|
|
|
|
/* id of the pad event probe */
|
|
gulong output_event_probe_id;
|
|
|
|
/* id of the buffer blocking probe on the parsebin srcpad pad */
|
|
gulong buffer_probe_id;
|
|
|
|
/* Whether we saw an EOS on input. This should be treated accordingly
|
|
* when the stream is no longer used */
|
|
gboolean saw_eos;
|
|
};
|
|
|
|
static void unblock_pending_input (DecodebinInput * input,
|
|
gboolean unblock_other_inputs);
|
|
static void parsebin_pad_added_cb (GstElement * demux, GstPad * pad,
|
|
DecodebinInput * input);
|
|
static void parsebin_pad_removed_cb (GstElement * demux, GstPad * pad,
|
|
DecodebinInput * input);
|
|
|
|
/* WITH SELECTION_LOCK TAKEN! */
|
|
static gboolean
|
|
all_inputs_are_eos (GstDecodebin3 * dbin)
|
|
{
|
|
GList *tmp;
|
|
|
|
/* First check input streams */
|
|
for (tmp = dbin->input_streams; tmp; tmp = tmp->next) {
|
|
DecodebinInputStream *input = (DecodebinInputStream *) tmp->data;
|
|
if (input->saw_eos == FALSE)
|
|
return FALSE;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (dbin, "All input streams are EOS");
|
|
return TRUE;
|
|
}
|
|
|
|
/* WITH SELECTION_LOCK TAKEN! */
|
|
static void
|
|
check_all_streams_for_eos (GstDecodebin3 * dbin, GstEvent * event)
|
|
{
|
|
GList *tmp;
|
|
GList *outputpads = NULL;
|
|
|
|
if (!all_inputs_are_eos (dbin))
|
|
return;
|
|
|
|
/* We know all streams are EOS, properly clean up everything */
|
|
|
|
/* We grab all peer pads *while* the selection lock is taken and then we will
|
|
push EOS downstream with the selection lock released */
|
|
for (tmp = dbin->input_streams; tmp; tmp = tmp->next) {
|
|
DecodebinInputStream *input = (DecodebinInputStream *) tmp->data;
|
|
GstPad *peer = gst_pad_get_peer (input->srcpad);
|
|
|
|
/* Keep a reference to the peer pad */
|
|
if (peer)
|
|
outputpads = g_list_append (outputpads, peer);
|
|
}
|
|
|
|
SELECTION_UNLOCK (dbin);
|
|
|
|
for (tmp = outputpads; tmp; tmp = tmp->next) {
|
|
GstPad *peer = (GstPad *) tmp->data;
|
|
|
|
/* Send EOS and then remove elements */
|
|
gst_pad_send_event (peer, gst_event_ref (event));
|
|
GST_FIXME_OBJECT (peer, "Remove input stream");
|
|
gst_object_unref (peer);
|
|
}
|
|
SELECTION_LOCK (dbin);
|
|
|
|
g_list_free (outputpads);
|
|
}
|
|
|
|
/* Get the intersection of parser caps and available (sorted) decoders */
|
|
static GstCaps *
|
|
get_parser_caps_filter (GstDecodebin3 * dbin, GstCaps * caps)
|
|
{
|
|
GList *tmp;
|
|
GstCaps *filter_caps;
|
|
|
|
/* If no filter was provided, it can handle anything */
|
|
if (!caps || gst_caps_is_any (caps))
|
|
return gst_caps_new_any ();
|
|
|
|
filter_caps = gst_caps_new_empty ();
|
|
|
|
g_mutex_lock (&dbin->factories_lock);
|
|
gst_decode_bin_update_factories_list (dbin);
|
|
for (tmp = dbin->decoder_factories; tmp; tmp = tmp->next) {
|
|
GstElementFactory *factory = (GstElementFactory *) tmp->data;
|
|
GstCaps *tcaps, *intersection;
|
|
const GList *tmps;
|
|
|
|
GST_LOG ("Trying factory %s",
|
|
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
|
|
for (tmps = gst_element_factory_get_static_pad_templates (factory); tmps;
|
|
tmps = tmps->next) {
|
|
GstStaticPadTemplate *st = (GstStaticPadTemplate *) tmps->data;
|
|
if (st->direction != GST_PAD_SINK || st->presence != GST_PAD_ALWAYS)
|
|
continue;
|
|
tcaps = gst_static_pad_template_get_caps (st);
|
|
intersection =
|
|
gst_caps_intersect_full (tcaps, caps, GST_CAPS_INTERSECT_FIRST);
|
|
filter_caps = gst_caps_merge (filter_caps, intersection);
|
|
gst_caps_unref (tcaps);
|
|
}
|
|
}
|
|
g_mutex_unlock (&dbin->factories_lock);
|
|
GST_DEBUG_OBJECT (dbin, "Got filter caps %" GST_PTR_FORMAT, filter_caps);
|
|
return filter_caps;
|
|
}
|
|
|
|
static gboolean
|
|
check_parser_caps_filter (GstDecodebin3 * dbin, GstCaps * caps)
|
|
{
|
|
GList *tmp;
|
|
gboolean res = FALSE;
|
|
GstCaps *default_raw = gst_static_caps_get (&default_raw_caps);
|
|
|
|
if (gst_caps_can_intersect (caps, default_raw)) {
|
|
GST_INFO_OBJECT (dbin, "Dealing with raw stream from the demuxer, "
|
|
" we can handle them even if we won't expose then");
|
|
gst_caps_unref (default_raw);
|
|
|
|
return TRUE;
|
|
}
|
|
gst_caps_unref (default_raw);
|
|
|
|
g_mutex_lock (&dbin->factories_lock);
|
|
gst_decode_bin_update_factories_list (dbin);
|
|
for (tmp = dbin->decoder_factories; tmp; tmp = tmp->next) {
|
|
GstElementFactory *factory = (GstElementFactory *) tmp->data;
|
|
GstCaps *tcaps;
|
|
const GList *tmps;
|
|
|
|
GST_LOG ("Trying factory %s",
|
|
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
|
|
for (tmps = gst_element_factory_get_static_pad_templates (factory); tmps;
|
|
tmps = tmps->next) {
|
|
GstStaticPadTemplate *st = (GstStaticPadTemplate *) tmps->data;
|
|
if (st->direction != GST_PAD_SINK || st->presence != GST_PAD_ALWAYS)
|
|
continue;
|
|
tcaps = gst_static_pad_template_get_caps (st);
|
|
if (gst_caps_can_intersect (tcaps, caps)) {
|
|
res = TRUE;
|
|
gst_caps_unref (tcaps);
|
|
goto beach;
|
|
}
|
|
gst_caps_unref (tcaps);
|
|
}
|
|
}
|
|
beach:
|
|
g_mutex_unlock (&dbin->factories_lock);
|
|
GST_DEBUG_OBJECT (dbin, "Can intersect %" GST_PTR_FORMAT ": %d", caps, res);
|
|
return res;
|
|
}
|
|
|
|
/* Probe on the output of a parser chain (the last
|
|
* src pad) */
|
|
static GstPadProbeReturn
|
|
parse_chain_output_probe (GstPad * pad, GstPadProbeInfo * info,
|
|
DecodebinInputStream * input)
|
|
{
|
|
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
|
|
|
|
if (GST_IS_EVENT (GST_PAD_PROBE_INFO_DATA (info))) {
|
|
GstEvent *ev = GST_PAD_PROBE_INFO_EVENT (info);
|
|
|
|
GST_DEBUG_OBJECT (pad, "Got event %s", GST_EVENT_TYPE_NAME (ev));
|
|
switch (GST_EVENT_TYPE (ev)) {
|
|
case GST_EVENT_STREAM_START:
|
|
{
|
|
GstStream *stream = NULL;
|
|
guint group_id = GST_GROUP_ID_INVALID;
|
|
|
|
if (!gst_event_parse_group_id (ev, &group_id)) {
|
|
GST_FIXME_OBJECT (pad,
|
|
"Consider implementing group-id handling on stream-start event");
|
|
group_id = gst_util_group_id_next ();
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (pad, "Got stream-start, group_id:%d, input %p",
|
|
group_id, input->input);
|
|
if (set_input_group_id (input->input, &group_id)) {
|
|
ev = gst_event_make_writable (ev);
|
|
gst_event_set_group_id (ev, group_id);
|
|
GST_PAD_PROBE_INFO_DATA (info) = ev;
|
|
}
|
|
input->saw_eos = FALSE;
|
|
|
|
gst_event_parse_stream (ev, &stream);
|
|
/* FIXME : Would we ever end up with a stream already set on the input ?? */
|
|
if (stream) {
|
|
if (input->active_stream != stream) {
|
|
MultiQueueSlot *slot;
|
|
if (input->active_stream)
|
|
gst_object_unref (input->active_stream);
|
|
input->active_stream = stream;
|
|
/* We have the beginning of a stream, get a multiqueue slot and link to it */
|
|
SELECTION_LOCK (input->dbin);
|
|
slot = get_slot_for_input (input->dbin, input);
|
|
link_input_to_slot (input, slot);
|
|
SELECTION_UNLOCK (input->dbin);
|
|
} else
|
|
gst_object_unref (stream);
|
|
}
|
|
}
|
|
break;
|
|
case GST_EVENT_GAP:
|
|
{
|
|
/* If we are still waiting to be unblocked and we get a gap, unblock */
|
|
if (input->buffer_probe_id) {
|
|
GST_DEBUG_OBJECT (pad, "Got a gap event! Unblocking input(s) !");
|
|
unblock_pending_input (input->input, TRUE);
|
|
}
|
|
break;
|
|
}
|
|
case GST_EVENT_CAPS:
|
|
{
|
|
GstCaps *caps = NULL;
|
|
gst_event_parse_caps (ev, &caps);
|
|
GST_DEBUG_OBJECT (pad, "caps %" GST_PTR_FORMAT, caps);
|
|
if (caps && input->active_stream)
|
|
gst_stream_set_caps (input->active_stream, caps);
|
|
}
|
|
break;
|
|
case GST_EVENT_EOS:
|
|
input->saw_eos = TRUE;
|
|
if (all_inputs_are_eos (input->dbin)) {
|
|
GST_DEBUG_OBJECT (pad, "real input pad, marking as EOS");
|
|
SELECTION_LOCK (input->dbin);
|
|
check_all_streams_for_eos (input->dbin, ev);
|
|
SELECTION_UNLOCK (input->dbin);
|
|
} else {
|
|
GstPad *peer = gst_pad_get_peer (input->srcpad);
|
|
if (peer) {
|
|
/* Send custom-eos event to multiqueue slot */
|
|
GstEvent *event;
|
|
|
|
GST_DEBUG_OBJECT (pad,
|
|
"Got EOS end of input stream, post custom-eos");
|
|
event = gst_event_new_eos ();
|
|
gst_event_set_seqnum (event, gst_event_get_seqnum (ev));
|
|
gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (event),
|
|
CUSTOM_EOS_QUARK, (gchar *) CUSTOM_EOS_QUARK_DATA, NULL);
|
|
gst_pad_send_event (peer, event);
|
|
gst_object_unref (peer);
|
|
} else {
|
|
GST_FIXME_OBJECT (pad, "No peer, what should we do ?");
|
|
}
|
|
}
|
|
ret = GST_PAD_PROBE_DROP;
|
|
break;
|
|
case GST_EVENT_FLUSH_STOP:
|
|
GST_DEBUG_OBJECT (pad, "Clear saw_eos flag");
|
|
input->saw_eos = FALSE;
|
|
default:
|
|
break;
|
|
}
|
|
} else if (GST_IS_QUERY (GST_PAD_PROBE_INFO_DATA (info))) {
|
|
if (input->input && input->input->identity) {
|
|
GST_DEBUG_OBJECT (pad, "Letting query through");
|
|
} else {
|
|
GstQuery *q = GST_PAD_PROBE_INFO_QUERY (info);
|
|
GST_DEBUG_OBJECT (pad, "Seeing query %" GST_PTR_FORMAT, q);
|
|
/* If we have a parser, we want to reply to the caps query */
|
|
/* FIXME: Set a flag when the input stream is created for
|
|
* streams where we shouldn't reply to these queries */
|
|
if (GST_QUERY_TYPE (q) == GST_QUERY_CAPS
|
|
&& (info->type & GST_PAD_PROBE_TYPE_PULL)) {
|
|
GstCaps *filter = NULL;
|
|
GstCaps *allowed;
|
|
gst_query_parse_caps (q, &filter);
|
|
allowed = get_parser_caps_filter (input->dbin, filter);
|
|
GST_DEBUG_OBJECT (pad,
|
|
"Intercepting caps query, setting %" GST_PTR_FORMAT, allowed);
|
|
gst_query_set_caps_result (q, allowed);
|
|
gst_caps_unref (allowed);
|
|
ret = GST_PAD_PROBE_HANDLED;
|
|
} else if (GST_QUERY_TYPE (q) == GST_QUERY_ACCEPT_CAPS) {
|
|
GstCaps *prop = NULL;
|
|
gst_query_parse_accept_caps (q, &prop);
|
|
/* Fast check against target caps */
|
|
if (gst_caps_can_intersect (prop, input->dbin->caps)) {
|
|
gst_query_set_accept_caps_result (q, TRUE);
|
|
} else {
|
|
gboolean accepted = check_parser_caps_filter (input->dbin, prop);
|
|
/* check against caps filter */
|
|
gst_query_set_accept_caps_result (q, accepted);
|
|
GST_DEBUG_OBJECT (pad, "ACCEPT_CAPS query, returning %d", accepted);
|
|
}
|
|
ret = GST_PAD_PROBE_HANDLED;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
parsebin_buffer_probe (GstPad * pad, GstPadProbeInfo * info,
|
|
DecodebinInput * input)
|
|
{
|
|
/* We have at least one buffer pending, unblock parsebin(s) */
|
|
GST_DEBUG_OBJECT (pad, "Got a buffer ! unblocking");
|
|
unblock_pending_input (input, TRUE);
|
|
|
|
return GST_PAD_PROBE_OK;
|
|
}
|
|
|
|
/* Call with selection lock */
|
|
static DecodebinInputStream *
|
|
create_input_stream (GstDecodebin3 * dbin, GstPad * pad, DecodebinInput * input)
|
|
{
|
|
DecodebinInputStream *res = g_new0 (DecodebinInputStream, 1);
|
|
|
|
GST_DEBUG_OBJECT (dbin, "Creating input stream for %" GST_PTR_FORMAT, pad);
|
|
|
|
res->dbin = dbin;
|
|
res->input = input;
|
|
res->srcpad = gst_object_ref (pad);
|
|
|
|
/* Put probe on output source pad (for detecting EOS/STREAM_START/FLUSH) */
|
|
res->output_event_probe_id =
|
|
gst_pad_add_probe (pad,
|
|
GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM | GST_PAD_PROBE_TYPE_QUERY_DOWNSTREAM
|
|
| GST_PAD_PROBE_TYPE_EVENT_FLUSH,
|
|
(GstPadProbeCallback) parse_chain_output_probe, res, NULL);
|
|
|
|
/* Install a blocking buffer probe */
|
|
res->buffer_probe_id =
|
|
gst_pad_add_probe (pad,
|
|
GST_PAD_PROBE_TYPE_BLOCK | GST_PAD_PROBE_TYPE_BUFFER,
|
|
(GstPadProbeCallback) parsebin_buffer_probe, input, NULL);
|
|
|
|
/* Add to list of current input streams */
|
|
dbin->input_streams = g_list_append (dbin->input_streams, res);
|
|
GST_DEBUG_OBJECT (pad, "Done creating input stream");
|
|
|
|
return res;
|
|
}
|
|
|
|
/* WITH SELECTION_LOCK TAKEN! */
|
|
static void
|
|
remove_input_stream (GstDecodebin3 * dbin, DecodebinInputStream * stream)
|
|
{
|
|
MultiQueueSlot *slot;
|
|
|
|
GST_DEBUG_OBJECT (dbin, "Removing input stream %p (%s)", stream,
|
|
stream->active_stream ? gst_stream_get_stream_id (stream->active_stream) :
|
|
"<NONE>");
|
|
|
|
gst_object_replace ((GstObject **) & stream->active_stream, NULL);
|
|
|
|
/* Unlink from slot */
|
|
if (stream->srcpad) {
|
|
GstPad *peer;
|
|
peer = gst_pad_get_peer (stream->srcpad);
|
|
if (peer) {
|
|
gst_pad_unlink (stream->srcpad, peer);
|
|
gst_object_unref (peer);
|
|
}
|
|
if (stream->buffer_probe_id)
|
|
gst_pad_remove_probe (stream->srcpad, stream->buffer_probe_id);
|
|
gst_object_unref (stream->srcpad);
|
|
}
|
|
|
|
slot = get_slot_for_input (dbin, stream);
|
|
if (slot) {
|
|
slot->pending_stream = NULL;
|
|
slot->input = NULL;
|
|
GST_DEBUG_OBJECT (dbin, "slot %p cleared", slot);
|
|
}
|
|
|
|
dbin->input_streams = g_list_remove (dbin->input_streams, stream);
|
|
|
|
g_free (stream);
|
|
}
|
|
|
|
static void
|
|
unblock_pending_input (DecodebinInput * input, gboolean unblock_other_inputs)
|
|
{
|
|
GstDecodebin3 *dbin = input->dbin;
|
|
GList *tmp, *unused_slot = NULL;
|
|
|
|
GST_DEBUG_OBJECT (dbin,
|
|
"DecodebinInput for %" GST_PTR_FORMAT " , unblock_other_inputs:%d",
|
|
input->parsebin, unblock_other_inputs);
|
|
|
|
/* Re-use existing streams if/when possible */
|
|
GST_FIXME_OBJECT (dbin, "Re-use existing input streams if/when possible");
|
|
|
|
/* Unblock all input streams and link to a slot if needed */
|
|
SELECTION_LOCK (dbin);
|
|
tmp = dbin->input_streams;
|
|
while (tmp != NULL) {
|
|
DecodebinInputStream *input_stream = (DecodebinInputStream *) tmp->data;
|
|
GList *next = tmp->next;
|
|
MultiQueueSlot *slot;
|
|
|
|
if (input_stream->input != input) {
|
|
tmp = next;
|
|
continue;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (dbin, "Checking input stream %p", input_stream);
|
|
|
|
if (!input_stream->active_stream)
|
|
input_stream->active_stream = gst_pad_get_stream (input_stream->srcpad);
|
|
|
|
/* Ensure the stream has an associated slot */
|
|
slot = get_slot_for_input (dbin, input_stream);
|
|
if (slot->input != input_stream)
|
|
link_input_to_slot (input_stream, slot);
|
|
|
|
if (input_stream->buffer_probe_id) {
|
|
GST_DEBUG_OBJECT (dbin,
|
|
"Removing pad block on input %p pad %" GST_PTR_FORMAT, input_stream,
|
|
input_stream->srcpad);
|
|
gst_pad_remove_probe (input_stream->srcpad,
|
|
input_stream->buffer_probe_id);
|
|
input_stream->buffer_probe_id = 0;
|
|
}
|
|
|
|
if (input_stream->saw_eos) {
|
|
GST_DEBUG_OBJECT (dbin, "Removing EOS'd stream");
|
|
remove_input_stream (dbin, input_stream);
|
|
tmp = dbin->input_streams;
|
|
} else
|
|
tmp = next;
|
|
}
|
|
|
|
/* Weed out unused multiqueue slots */
|
|
for (tmp = dbin->slots; tmp; tmp = tmp->next) {
|
|
MultiQueueSlot *slot = (MultiQueueSlot *) tmp->data;
|
|
GST_LOG_OBJECT (dbin, "Slot %d input:%p", slot->id, slot->input);
|
|
if (slot->input == NULL) {
|
|
unused_slot =
|
|
g_list_append (unused_slot, gst_object_ref (slot->sink_pad));
|
|
}
|
|
}
|
|
SELECTION_UNLOCK (dbin);
|
|
|
|
if (unused_slot) {
|
|
for (tmp = unused_slot; tmp; tmp = tmp->next) {
|
|
GstPad *sink_pad = (GstPad *) tmp->data;
|
|
GST_DEBUG_OBJECT (sink_pad, "Sending EOS to unused slot");
|
|
gst_pad_send_event (sink_pad, gst_event_new_eos ());
|
|
}
|
|
g_list_free_full (unused_slot, (GDestroyNotify) gst_object_unref);
|
|
}
|
|
|
|
if (unblock_other_inputs) {
|
|
GList *tmp;
|
|
/* If requrested, unblock inputs which are targetting the same collection */
|
|
if (dbin->main_input != input) {
|
|
if (dbin->main_input->collection == input->collection) {
|
|
GST_DEBUG_OBJECT (dbin, "Unblock main input");
|
|
unblock_pending_input (dbin->main_input, FALSE);
|
|
}
|
|
}
|
|
for (tmp = dbin->other_inputs; tmp; tmp = tmp->next) {
|
|
DecodebinInput *other = tmp->data;
|
|
if (other->collection == input->collection) {
|
|
GST_DEBUG_OBJECT (dbin, "Unblock other input");
|
|
unblock_pending_input (other, FALSE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
parsebin_pad_added_cb (GstElement * demux, GstPad * pad, DecodebinInput * input)
|
|
{
|
|
GstDecodebin3 *dbin = input->dbin;
|
|
|
|
GST_DEBUG_OBJECT (dbin, "New pad %s:%s (input:%p)", GST_DEBUG_PAD_NAME (pad),
|
|
input);
|
|
|
|
SELECTION_LOCK (dbin);
|
|
create_input_stream (dbin, pad, input);
|
|
SELECTION_UNLOCK (dbin);
|
|
}
|
|
|
|
/* WITH SELECTION_LOCK TAKEN! */
|
|
static DecodebinInputStream *
|
|
find_input_stream_for_pad (GstDecodebin3 * dbin, GstPad * pad)
|
|
{
|
|
GList *tmp;
|
|
|
|
for (tmp = dbin->input_streams; tmp; tmp = tmp->next) {
|
|
DecodebinInputStream *cand = (DecodebinInputStream *) tmp->data;
|
|
if (cand->srcpad == pad)
|
|
return cand;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
parsebin_pad_removed_cb (GstElement * demux, GstPad * pad, DecodebinInput * inp)
|
|
{
|
|
GstDecodebin3 *dbin = inp->dbin;
|
|
DecodebinInputStream *input = NULL;
|
|
MultiQueueSlot *slot;
|
|
|
|
if (!GST_PAD_IS_SRC (pad))
|
|
return;
|
|
|
|
SELECTION_LOCK (dbin);
|
|
|
|
GST_DEBUG_OBJECT (pad, "removed");
|
|
input = find_input_stream_for_pad (dbin, pad);
|
|
|
|
if (input == NULL) {
|
|
GST_DEBUG_OBJECT (pad,
|
|
"Input stream not found, it was cleaned-up earlier after receiving EOS");
|
|
SELECTION_UNLOCK (dbin);
|
|
return;
|
|
}
|
|
|
|
/* If there are no pending pads, this means we will definitely not need this
|
|
* stream anymore */
|
|
|
|
GST_DEBUG_OBJECT (pad, "Remove input stream %p", input);
|
|
|
|
slot = get_slot_for_input (dbin, input);
|
|
remove_input_stream (dbin, input);
|
|
|
|
if (slot && g_list_find (dbin->slots, slot) && slot->is_drained) {
|
|
/* if slot is still there and already drained, remove it in here */
|
|
if (slot->output) {
|
|
DecodebinOutputStream *output = slot->output;
|
|
GST_DEBUG_OBJECT (pad, "Multiqueue was drained, Remove output stream");
|
|
|
|
dbin->output_streams = g_list_remove (dbin->output_streams, output);
|
|
free_output_stream (dbin, output);
|
|
}
|
|
GST_DEBUG_OBJECT (pad, "No pending pad, Remove multiqueue slot");
|
|
if (slot->probe_id)
|
|
gst_pad_remove_probe (slot->src_pad, slot->probe_id);
|
|
slot->probe_id = 0;
|
|
dbin->slots = g_list_remove (dbin->slots, slot);
|
|
free_multiqueue_slot_async (dbin, slot);
|
|
}
|
|
SELECTION_UNLOCK (dbin);
|
|
}
|