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stream: code cleanup

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=766612
This commit is contained in:
Xavier Claessens 2016-07-20 15:11:32 -04:00 committed by Sebastian Dröge
parent 2b223af792
commit 3ff4529a92
1 changed files with 205 additions and 280 deletions
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485
gst/rtsp-server/rtsp-stream.c
View file

@ -1179,28 +1179,33 @@ play_udpsources_one_family (GstRTSPStream * stream, GstElement * udpsrc_out[2],
bin = GST_BIN (gst_object_get_parent (GST_OBJECT (priv->funnel[1])));
for (i = 0; i < 2; i++) {
if (priv->sinkpad || i == 1) {
if (priv->srcpad) {
/* we set and keep these to playing so that they don't cause NO_PREROLL return
* values. This is only relevant for PLAY pipelines */
gst_element_set_state (udpsrc_out[i], GST_STATE_PLAYING);
gst_element_set_locked_state (udpsrc_out[i], TRUE);
}
/* add udpsrc */
gst_bin_add (bin, udpsrc_out[i]);
if (!priv->sinkpad && i == 0) {
/* Only connect recv RTP sink if we expect to receive RTP. Connect recv
* RTCP sink always */
continue;
}
/* and link to the funnel */
selpad = gst_element_get_request_pad (priv->funnel[i], "sink_%u");
pad = gst_element_get_static_pad (udpsrc_out[i], "src");
gst_pad_link (pad, selpad);
gst_object_unref (pad);
gst_object_unref (selpad);
if (priv->srcpad) {
/* we set and keep these to playing so that they don't cause NO_PREROLL return
* values. This is only relevant for PLAY pipelines */
gst_element_set_state (udpsrc_out[i], GST_STATE_PLAYING);
gst_element_set_locked_state (udpsrc_out[i], TRUE);
}
/* otherwise sync state with parent in case it's running already
* at this point */
if (!priv->srcpad) {
gst_element_sync_state_with_parent (udpsrc_out[i]);
}
/* add udpsrc */
gst_bin_add (bin, udpsrc_out[i]);
/* and link to the funnel */
selpad = gst_element_get_request_pad (priv->funnel[i], "sink_%u");
pad = gst_element_get_static_pad (udpsrc_out[i], "src");
gst_pad_link (pad, selpad);
gst_object_unref (pad);
gst_object_unref (selpad);
/* otherwise sync state with parent in case it's running already
* at this point */
if (!priv->srcpad) {
gst_element_sync_state_with_parent (udpsrc_out[i]);
}
}
@ -1246,7 +1251,6 @@ create_and_configure_udpsources_one_family (GstElement * udpsrc_out[2],
goto error;
return TRUE;
return TRUE;
/* ERRORS */
error:
@ -2469,102 +2473,102 @@ create_sender_part (GstRTSPStream * stream, GstBin * bin, GstState state)
* and link the udpsink (for UDP) or appsink (for TCP) directly to
* the session.
*/
/* Only link the RTP send src if we're going to send RTP, link
* the RTCP send src always */
if (priv->srcpad || i == 1) {
if (is_udp) {
/* add udpsink */
gst_bin_add (bin, priv->udpsink[i]);
sinkpad = gst_element_get_static_pad (priv->udpsink[i], "sink");
}
if (!priv->srcpad && i == 0)
continue;
if (is_tcp) {
/* make appsink */
priv->appsink[i] = gst_element_factory_make ("appsink", NULL);
g_object_set (priv->appsink[i], "emit-signals", FALSE, NULL);
gst_bin_add (bin, priv->appsink[i]);
gst_app_sink_set_callbacks (GST_APP_SINK_CAST (priv->appsink[i]),
&sink_cb, stream, NULL);
}
if (is_udp) {
/* add udpsink */
gst_bin_add (bin, priv->udpsink[i]);
sinkpad = gst_element_get_static_pad (priv->udpsink[i], "sink");
}
if (is_udp && is_tcp) {
if (is_tcp) {
/* make appsink */
priv->appsink[i] = gst_element_factory_make ("appsink", NULL);
g_object_set (priv->appsink[i], "emit-signals", FALSE, NULL);
gst_bin_add (bin, priv->appsink[i]);
gst_app_sink_set_callbacks (GST_APP_SINK_CAST (priv->appsink[i]),
&sink_cb, stream, NULL);
}
if (is_udp && is_tcp) {
g_object_set (priv->appsink[i], "async", FALSE, "sync", FALSE, NULL);
/* make tee for RTP/RTCP */
priv->tee[i] = gst_element_factory_make ("tee", NULL);
gst_bin_add (bin, priv->tee[i]);
/* and link to rtpbin send pad */
pad = gst_element_get_static_pad (priv->tee[i], "sink");
gst_pad_link (priv->send_src[i], pad);
gst_object_unref (pad);
priv->udpqueue[i] = gst_element_factory_make ("queue", NULL);
g_object_set (priv->udpqueue[i], "max-size-buffers",
1, "max-size-bytes", 0, "max-size-time", G_GINT64_CONSTANT (0), NULL);
gst_bin_add (bin, priv->udpqueue[i]);
/* link tee to udpqueue */
teepad = gst_element_get_request_pad (priv->tee[i], "src_%u");
pad = gst_element_get_static_pad (priv->udpqueue[i], "sink");
gst_pad_link (teepad, pad);
gst_object_unref (pad);
gst_object_unref (teepad);
/* link udpqueue to udpsink */
queuepad = gst_element_get_static_pad (priv->udpqueue[i], "src");
gst_pad_link (queuepad, sinkpad);
gst_object_unref (queuepad);
gst_object_unref (sinkpad);
/* make appqueue */
priv->appqueue[i] = gst_element_factory_make ("queue", NULL);
g_object_set (priv->appqueue[i], "max-size-buffers",
1, "max-size-bytes", 0, "max-size-time", G_GINT64_CONSTANT (0), NULL);
gst_bin_add (bin, priv->appqueue[i]);
/* and link tee to appqueue */
teepad = gst_element_get_request_pad (priv->tee[i], "src_%u");
pad = gst_element_get_static_pad (priv->appqueue[i], "sink");
gst_pad_link (teepad, pad);
gst_object_unref (pad);
gst_object_unref (teepad);
/* and link appqueue to appsink */
queuepad = gst_element_get_static_pad (priv->appqueue[i], "src");
pad = gst_element_get_static_pad (priv->appsink[i], "sink");
gst_pad_link (queuepad, pad);
gst_object_unref (pad);
gst_object_unref (queuepad);
} else if (is_tcp) {
/* only appsink needed, link it to the session */
pad = gst_element_get_static_pad (priv->appsink[i], "sink");
gst_pad_link (priv->send_src[i], pad);
gst_object_unref (pad);
/* when its only TCP, we need to set sync and preroll to FALSE
* for the sink to avoid deadlock. And this is only needed for
* sink used for RTCP data, not the RTP data. */
if (i == 1)
g_object_set (priv->appsink[i], "async", FALSE, "sync", FALSE, NULL);
/* make tee for RTP/RTCP */
priv->tee[i] = gst_element_factory_make ("tee", NULL);
gst_bin_add (bin, priv->tee[i]);
/* and link to rtpbin send pad */
pad = gst_element_get_static_pad (priv->tee[i], "sink");
gst_pad_link (priv->send_src[i], pad);
gst_object_unref (pad);
priv->udpqueue[i] = gst_element_factory_make ("queue", NULL);
g_object_set (priv->udpqueue[i], "max-size-buffers",
1, "max-size-bytes", 0, "max-size-time", G_GINT64_CONSTANT (0),
NULL);
gst_bin_add (bin, priv->udpqueue[i]);
/* link tee to udpqueue */
teepad = gst_element_get_request_pad (priv->tee[i], "src_%u");
pad = gst_element_get_static_pad (priv->udpqueue[i], "sink");
gst_pad_link (teepad, pad);
gst_object_unref (pad);
gst_object_unref (teepad);
/* link udpqueue to udpsink */
queuepad = gst_element_get_static_pad (priv->udpqueue[i], "src");
gst_pad_link (queuepad, sinkpad);
gst_object_unref (queuepad);
gst_object_unref (sinkpad);
/* make appqueue */
priv->appqueue[i] = gst_element_factory_make ("queue", NULL);
g_object_set (priv->appqueue[i], "max-size-buffers",
1, "max-size-bytes", 0, "max-size-time", G_GINT64_CONSTANT (0),
NULL);
gst_bin_add (bin, priv->appqueue[i]);
/* and link tee to appqueue */
teepad = gst_element_get_request_pad (priv->tee[i], "src_%u");
pad = gst_element_get_static_pad (priv->appqueue[i], "sink");
gst_pad_link (teepad, pad);
gst_object_unref (pad);
gst_object_unref (teepad);
/* and link appqueue to appsink */
queuepad = gst_element_get_static_pad (priv->appqueue[i], "src");
pad = gst_element_get_static_pad (priv->appsink[i], "sink");
gst_pad_link (queuepad, pad);
gst_object_unref (pad);
gst_object_unref (queuepad);
} else if (is_tcp) {
/* only appsink needed, link it to the session */
pad = gst_element_get_static_pad (priv->appsink[i], "sink");
gst_pad_link (priv->send_src[i], pad);
gst_object_unref (pad);
/* when its only TCP, we need to set sync and preroll to FALSE
* for the sink to avoid deadlock. And this is only needed for
* sink used for RTCP data, not the RTP data. */
if (i == 1)
g_object_set (priv->appsink[i], "async", FALSE, "sync", FALSE, NULL);
} else {
/* else only udpsink needed, link it to the session */
gst_pad_link (priv->send_src[i], sinkpad);
gst_object_unref (sinkpad);
}
} else {
/* else only udpsink needed, link it to the session */
gst_pad_link (priv->send_src[i], sinkpad);
gst_object_unref (sinkpad);
}
/* check if we need to set to a special state */
if (state != GST_STATE_NULL) {
if (priv->udpsink[i] && (priv->srcpad || i == 1))
if (priv->udpsink[i])
gst_element_set_state (priv->udpsink[i], state);
if (priv->appsink[i] && (priv->srcpad || i == 1))
if (priv->appsink[i])
gst_element_set_state (priv->appsink[i], state);
if (priv->appqueue[i] && (priv->srcpad || i == 1))
if (priv->appqueue[i])
gst_element_set_state (priv->appqueue[i], state);
if (priv->udpqueue[i] && (priv->srcpad || i == 1))
if (priv->udpqueue[i])
gst_element_set_state (priv->udpqueue[i], state);
if (priv->tee[i] && (priv->srcpad || i == 1))
if (priv->tee[i])
gst_element_set_state (priv->tee[i], state);
}
}
@ -2592,87 +2596,89 @@ create_receiver_part (GstRTSPStream * stream, GstBin * bin, GstState state)
is_tcp = priv->protocols & GST_RTSP_LOWER_TRANS_TCP;
for (i = 0; i < 2; i++) {
/* Only connect recv RTP sink if we expect to receive RTP. Connect recv
* RTCP sink always */
if (priv->sinkpad || i == 1) {
/* For the receiver we create this bit of pipeline for both
* RTP and RTCP. We receive RTP/RTCP on appsrc and udpsrc
* and it is all funneled into the rtpbin receive pad.
*
* .--------. .--------. .--------.
* | udpsrc | | funnel | | rtpbin |
* | src->sink src->sink |
* '--------' | | '--------'
* .--------. | |
* | appsrc | | |
* | src->sink |
* '--------' '--------'
*/
/* make funnel for the RTP/RTCP receivers */
priv->funnel[i] = gst_element_factory_make ("funnel", NULL);
gst_bin_add (bin, priv->funnel[i]);
/* For the receiver we create this bit of pipeline for both
* RTP and RTCP. We receive RTP/RTCP on appsrc and udpsrc
* and it is all funneled into the rtpbin receive pad.
*
* .--------. .--------. .--------.
* | udpsrc | | funnel | | rtpbin |
* | src->sink src->sink |
* '--------' | | '--------'
* .--------. | |
* | appsrc | | |
* | src->sink |
* '--------' '--------'
*/
pad = gst_element_get_static_pad (priv->funnel[i], "src");
gst_pad_link (pad, priv->recv_sink[i]);
if (!priv->sinkpad && i == 0) {
/* Only connect recv RTP sink if we expect to receive RTP. Connect recv
* RTCP sink always */
continue;
}
/* make funnel for the RTP/RTCP receivers */
priv->funnel[i] = gst_element_factory_make ("funnel", NULL);
gst_bin_add (bin, priv->funnel[i]);
pad = gst_element_get_static_pad (priv->funnel[i], "src");
gst_pad_link (pad, priv->recv_sink[i]);
gst_object_unref (pad);
if (priv->udpsrc_v4[i]) {
if (priv->srcpad) {
/* we set and keep these to playing so that they don't cause NO_PREROLL return
* values. This is only relevant for PLAY pipelines */
gst_element_set_state (priv->udpsrc_v4[i], GST_STATE_PLAYING);
gst_element_set_locked_state (priv->udpsrc_v4[i], TRUE);
}
/* add udpsrc */
gst_bin_add (bin, priv->udpsrc_v4[i]);
/* and link to the funnel v4 */
selpad = gst_element_get_request_pad (priv->funnel[i], "sink_%u");
pad = gst_element_get_static_pad (priv->udpsrc_v4[i], "src");
gst_pad_link (pad, selpad);
gst_object_unref (pad);
gst_object_unref (selpad);
}
if (priv->udpsrc_v4[i]) {
if (priv->srcpad) {
/* we set and keep these to playing so that they don't cause NO_PREROLL return
* values. This is only relevant for PLAY pipelines */
gst_element_set_state (priv->udpsrc_v4[i], GST_STATE_PLAYING);
gst_element_set_locked_state (priv->udpsrc_v4[i], TRUE);
}
/* add udpsrc */
gst_bin_add (bin, priv->udpsrc_v4[i]);
/* and link to the funnel v4 */
selpad = gst_element_get_request_pad (priv->funnel[i], "sink_%u");
pad = gst_element_get_static_pad (priv->udpsrc_v4[i], "src");
gst_pad_link (pad, selpad);
gst_object_unref (pad);
gst_object_unref (selpad);
if (priv->udpsrc_v6[i]) {
if (priv->srcpad) {
gst_element_set_state (priv->udpsrc_v6[i], GST_STATE_PLAYING);
gst_element_set_locked_state (priv->udpsrc_v6[i], TRUE);
}
gst_bin_add (bin, priv->udpsrc_v6[i]);
if (priv->udpsrc_v6[i]) {
if (priv->srcpad) {
gst_element_set_state (priv->udpsrc_v6[i], GST_STATE_PLAYING);
gst_element_set_locked_state (priv->udpsrc_v6[i], TRUE);
}
gst_bin_add (bin, priv->udpsrc_v6[i]);
/* and link to the funnel v6 */
selpad = gst_element_get_request_pad (priv->funnel[i], "sink_%u");
pad = gst_element_get_static_pad (priv->udpsrc_v6[i], "src");
gst_pad_link (pad, selpad);
gst_object_unref (pad);
gst_object_unref (selpad);
}
/* and link to the funnel v6 */
selpad = gst_element_get_request_pad (priv->funnel[i], "sink_%u");
pad = gst_element_get_static_pad (priv->udpsrc_v6[i], "src");
gst_pad_link (pad, selpad);
gst_object_unref (pad);
gst_object_unref (selpad);
}
if (is_tcp) {
/* make and add appsrc */
priv->appsrc[i] = gst_element_factory_make ("appsrc", NULL);
priv->appsrc_base_time[i] = -1;
if (priv->srcpad) {
gst_element_set_state (priv->appsrc[i], GST_STATE_PLAYING);
gst_element_set_locked_state (priv->appsrc[i], TRUE);
}
g_object_set (priv->appsrc[i], "format", GST_FORMAT_TIME, "is-live",
TRUE, NULL);
gst_bin_add (bin, priv->appsrc[i]);
/* and link to the funnel */
selpad = gst_element_get_request_pad (priv->funnel[i], "sink_%u");
pad = gst_element_get_static_pad (priv->appsrc[i], "src");
gst_pad_link (pad, selpad);
gst_object_unref (pad);
gst_object_unref (selpad);
if (is_tcp) {
/* make and add appsrc */
priv->appsrc[i] = gst_element_factory_make ("appsrc", NULL);
priv->appsrc_base_time[i] = -1;
if (priv->srcpad) {
gst_element_set_state (priv->appsrc[i], GST_STATE_PLAYING);
gst_element_set_locked_state (priv->appsrc[i], TRUE);
}
g_object_set (priv->appsrc[i], "format", GST_FORMAT_TIME, "is-live",
TRUE, NULL);
gst_bin_add (bin, priv->appsrc[i]);
/* and link to the funnel */
selpad = gst_element_get_request_pad (priv->funnel[i], "sink_%u");
pad = gst_element_get_static_pad (priv->appsrc[i], "src");
gst_pad_link (pad, selpad);
gst_object_unref (pad);
gst_object_unref (selpad);
}
/* check if we need to set to a special state */
if (state != GST_STATE_NULL) {
if (priv->funnel[i] && (priv->sinkpad || i == 1))
gst_element_set_state (priv->funnel[i], state);
gst_element_set_state (priv->funnel[i], state);
}
}
}
@ -2883,6 +2889,20 @@ no_udp_protocol:
}
}
static void
clear_element (GstBin * bin, GstElement ** elementptr)
{
if (*elementptr) {
gst_element_set_locked_state (*elementptr, FALSE);
gst_element_set_state (*elementptr, GST_STATE_NULL);
if (GST_ELEMENT_PARENT (*elementptr))
gst_bin_remove (bin, *elementptr);
else
gst_object_unref (*elementptr);
*elementptr = NULL;
}
}
/**
* gst_rtsp_stream_leave_bin:
* @stream: a #GstRTSPStream
@ -2899,7 +2919,6 @@ gst_rtsp_stream_leave_bin (GstRTSPStream * stream, GstBin * bin,
{
GstRTSPStreamPrivate *priv;
gint i;
gboolean is_tcp, is_udp;
g_return_val_if_fail (GST_IS_RTSP_STREAM (stream), FALSE);
g_return_val_if_fail (GST_IS_BIN (bin), FALSE);
@ -2935,118 +2954,24 @@ gst_rtsp_stream_leave_bin (GstRTSPStream * stream, GstBin * bin,
priv->recv_rtp_src = NULL;
}
is_tcp = priv->protocols & GST_RTSP_LOWER_TRANS_TCP;
is_udp = ((priv->protocols & GST_RTSP_LOWER_TRANS_UDP) ||
(priv->protocols & GST_RTSP_LOWER_TRANS_UDP_MCAST));
for (i = 0; i < 2; i++) {
if (priv->udpsink[i])
gst_element_set_state (priv->udpsink[i], GST_STATE_NULL);
if (priv->appsink[i])
gst_element_set_state (priv->appsink[i], GST_STATE_NULL);
if (priv->appqueue[i])
gst_element_set_state (priv->appqueue[i], GST_STATE_NULL);
if (priv->udpqueue[i])
gst_element_set_state (priv->udpqueue[i], GST_STATE_NULL);
if (priv->tee[i])
gst_element_set_state (priv->tee[i], GST_STATE_NULL);
if (priv->funnel[i])
gst_element_set_state (priv->funnel[i], GST_STATE_NULL);
if (priv->appsrc[i])
gst_element_set_state (priv->appsrc[i], GST_STATE_NULL);
if (priv->udpsrc_v4[i]) {
if (priv->sinkpad || i == 1) {
/* and set udpsrc to NULL now before removing */
gst_element_set_locked_state (priv->udpsrc_v4[i], FALSE);
gst_element_set_state (priv->udpsrc_v4[i], GST_STATE_NULL);
/* removing them should also nicely release the request
* pads when they finalize */
gst_bin_remove (bin, priv->udpsrc_v4[i]);
} else {
/* we need to set the state to NULL before unref */
gst_element_set_state (priv->udpsrc_v4[i], GST_STATE_NULL);
gst_object_unref (priv->udpsrc_v4[i]);
}
}
if (priv->udpsrc_mcast_v4[i]) {
if (priv->sinkpad || i == 1) {
/* and set udpsrc to NULL now before removing */
gst_element_set_locked_state (priv->udpsrc_mcast_v4[i], FALSE);
gst_element_set_state (priv->udpsrc_mcast_v4[i], GST_STATE_NULL);
/* removing them should also nicely release the request
* pads when they finalize */
gst_bin_remove (bin, priv->udpsrc_mcast_v4[i]);
} else {
gst_element_set_state (priv->udpsrc_mcast_v4[i], GST_STATE_NULL);
gst_object_unref (priv->udpsrc_mcast_v4[i]);
}
}
if (priv->udpsrc_v6[i]) {
if (priv->sinkpad || i == 1) {
gst_element_set_locked_state (priv->udpsrc_v6[i], FALSE);
gst_element_set_state (priv->udpsrc_v6[i], GST_STATE_NULL);
gst_bin_remove (bin, priv->udpsrc_v6[i]);
} else {
gst_element_set_state (priv->udpsrc_v6[i], GST_STATE_NULL);
gst_object_unref (priv->udpsrc_v6[i]);
}
}
if (priv->udpsrc_mcast_v6[i]) {
if (priv->sinkpad || i == 1) {
gst_element_set_locked_state (priv->udpsrc_mcast_v6[i], FALSE);
gst_element_set_state (priv->udpsrc_mcast_v6[i], GST_STATE_NULL);
gst_bin_remove (bin, priv->udpsrc_mcast_v6[i]);
} else {
gst_element_set_state (priv->udpsrc_mcast_v6[i], GST_STATE_NULL);
gst_object_unref (priv->udpsrc_mcast_v6[i]);
}
}
if (priv->udpsink[i] && is_udp && (priv->srcpad || i == 1))
gst_bin_remove (bin, priv->udpsink[i]);
if (priv->appsrc[i]) {
if (priv->sinkpad || i == 1) {
gst_element_set_locked_state (priv->appsrc[i], FALSE);
gst_element_set_state (priv->appsrc[i], GST_STATE_NULL);
gst_bin_remove (bin, priv->appsrc[i]);
} else {
gst_element_set_state (priv->appsrc[i], GST_STATE_NULL);
gst_object_unref (priv->appsrc[i]);
}
}
if (priv->appsink[i] && is_tcp && (priv->srcpad || i == 1))
gst_bin_remove (bin, priv->appsink[i]);
if (priv->appqueue[i] && is_tcp && is_udp && (priv->srcpad || i == 1))
gst_bin_remove (bin, priv->appqueue[i]);
if (priv->udpqueue[i] && is_tcp && is_udp && (priv->srcpad || i == 1))
gst_bin_remove (bin, priv->udpqueue[i]);
if (priv->tee[i] && is_tcp && is_udp && (priv->srcpad || i == 1))
gst_bin_remove (bin, priv->tee[i]);
if (priv->funnel[i] && (priv->sinkpad || i == 1))
gst_bin_remove (bin, priv->funnel[i]);
clear_element (bin, &priv->udpsink[i]);
clear_element (bin, &priv->appsink[i]);
clear_element (bin, &priv->appqueue[i]);
clear_element (bin, &priv->udpqueue[i]);
clear_element (bin, &priv->tee[i]);
clear_element (bin, &priv->funnel[i]);
clear_element (bin, &priv->appsrc[i]);
clear_element (bin, &priv->udpsrc_v4[i]);
clear_element (bin, &priv->udpsrc_v6[i]);
clear_element (bin, &priv->udpsrc_mcast_v4[i]);
clear_element (bin, &priv->udpsrc_mcast_v6[i]);
if (priv->sinkpad || i == 1) {
gst_element_release_request_pad (rtpbin, priv->recv_sink[i]);
gst_object_unref (priv->recv_sink[i]);
priv->recv_sink[i] = NULL;
}
priv->udpsrc_v4[i] = NULL;
priv->udpsrc_v6[i] = NULL;
priv->udpsrc_mcast_v4[i] = NULL;
priv->udpsrc_mcast_v6[i] = NULL;
priv->udpsink[i] = NULL;
priv->appsrc[i] = NULL;
priv->appsink[i] = NULL;
priv->appqueue[i] = NULL;
priv->udpqueue[i] = NULL;
priv->tee[i] = NULL;
priv->funnel[i] = NULL;
}
if (priv->srcpad) {