gstreamer/examples/test-replay-server.c
2021-04-27 09:05:39 +02:00

931 lines
26 KiB
C

/* GStreamer
* Copyright (C) 2019 Mathieu Duponchelle <mathieu@centricular.com>
* Copyright (C) 2020 Seungha Yang <seungha@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.
*/
#include <gst/gst.h>
#include <gst/rtsp-server/rtsp-server.h>
#include "test-replay-server.h"
GST_DEBUG_CATEGORY_STATIC (replay_server_debug);
#define GST_CAT_DEFAULT (replay_server_debug)
static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw");
static GstStaticCaps raw_audio_caps = GST_STATIC_CAPS ("audio/x-raw");
static GList
* gst_rtsp_media_factory_replay_get_demuxers (GstRTSPMediaFactoryReplay *
factory);
static GList
* gst_rtsp_media_factory_replay_get_payloaders (GstRTSPMediaFactoryReplay *
factory);
static GList
* gst_rtsp_media_factory_replay_get_decoders (GstRTSPMediaFactoryReplay *
factory);
typedef struct
{
GstPad *srcpad;
gulong block_id;
} GstReplayBinPad;
static void
gst_replay_bin_pad_unblock_and_free (GstReplayBinPad * pad)
{
if (pad->srcpad && pad->block_id) {
GST_DEBUG_OBJECT (pad->srcpad, "Unblock");
gst_pad_remove_probe (pad->srcpad, pad->block_id);
pad->block_id = 0;
}
gst_clear_object (&pad->srcpad);
g_free (pad);
}
/* NOTE: this bin implementation is almost completely taken from rtsp-media-factory-uri
* but this example doesn't use the GstRTSPMediaFactoryURI object so that
* we can handle events and messages ourselves.
* Specifically,
* - Handle segment-done message for looping given source
* - Drop all incoming seek event because client seek is not implemented
* and do initial segment seeking on no-more-pads signal
*/
struct _GstReplayBin
{
GstBin parent;
gint64 num_loops;
GstCaps *raw_vcaps;
GstCaps *raw_acaps;
guint pt;
/* without ref */
GstElement *uridecodebin;
GstElement *inner_bin;
/* holds ref */
GstRTSPMediaFactoryReplay *factory;
GMutex lock;
GList *srcpads;
};
static void gst_replay_bin_dispose (GObject * object);
static void gst_replay_bin_finalize (GObject * object);
static void gst_replay_bin_handle_message (GstBin * bin, GstMessage * message);
static gboolean autoplug_continue_cb (GstElement * dbin, GstPad * pad,
GstCaps * caps, GstReplayBin * self);
static void pad_added_cb (GstElement * dbin, GstPad * pad, GstReplayBin * self);
static void no_more_pads_cb (GstElement * uribin, GstReplayBin * self);
#define gst_replay_bin_parent_class bin_parent_class
G_DEFINE_TYPE (GstReplayBin, gst_replay_bin, GST_TYPE_BIN);
static void
gst_replay_bin_class_init (GstReplayBinClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstBinClass *bin_class = GST_BIN_CLASS (klass);
gobject_class->dispose = gst_replay_bin_dispose;
gobject_class->finalize = gst_replay_bin_finalize;
bin_class->handle_message = GST_DEBUG_FUNCPTR (gst_replay_bin_handle_message);
}
static void
gst_replay_bin_init (GstReplayBin * self)
{
self->raw_vcaps = gst_static_caps_get (&raw_video_caps);
self->raw_acaps = gst_static_caps_get (&raw_audio_caps);
self->uridecodebin = gst_element_factory_make ("uridecodebin", NULL);
if (!self->uridecodebin) {
GST_ERROR_OBJECT (self, "uridecodebin is unavailable");
return;
}
/* our bin will dynamically expose payloaded pads */
self->inner_bin = gst_bin_new ("dynpay0");
gst_bin_add (GST_BIN_CAST (self), self->inner_bin);
gst_bin_add (GST_BIN_CAST (self->inner_bin), self->uridecodebin);
g_signal_connect (self->uridecodebin, "autoplug-continue",
G_CALLBACK (autoplug_continue_cb), self);
g_signal_connect (self->uridecodebin, "pad-added",
G_CALLBACK (pad_added_cb), self);
g_signal_connect (self->uridecodebin, "no-more-pads",
G_CALLBACK (no_more_pads_cb), self);
self->pt = 96;
g_mutex_init (&self->lock);
}
static void
gst_replay_bin_dispose (GObject * object)
{
GstReplayBin *self = GST_REPLAY_BIN (object);
GST_DEBUG_OBJECT (self, "dispose");
gst_clear_caps (&self->raw_vcaps);
gst_clear_caps (&self->raw_acaps);
gst_clear_object (&self->factory);
if (self->srcpads) {
g_list_free_full (self->srcpads,
(GDestroyNotify) gst_replay_bin_pad_unblock_and_free);
self->srcpads = NULL;
}
G_OBJECT_CLASS (bin_parent_class)->dispose (object);
}
static void
gst_replay_bin_finalize (GObject * object)
{
GstReplayBin *self = GST_REPLAY_BIN (object);
g_mutex_clear (&self->lock);
G_OBJECT_CLASS (bin_parent_class)->finalize (object);
}
static gboolean
send_eos_foreach_srcpad (GstElement * element, GstPad * pad, gpointer user_data)
{
GST_DEBUG_OBJECT (pad, "Sending EOS to downstream");
gst_pad_push_event (pad, gst_event_new_eos ());
return TRUE;
}
static void
gst_replay_bin_do_segment_seek (GstElement * element, GstReplayBin * self)
{
gboolean ret;
ret = gst_element_seek (element, 1.0, GST_FORMAT_TIME,
GST_SEEK_FLAG_ACCURATE | GST_SEEK_FLAG_SEGMENT,
GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, -1);
if (!ret) {
GST_WARNING_OBJECT (self, "segment seeking failed");
gst_element_foreach_src_pad (element,
(GstElementForeachPadFunc) send_eos_foreach_srcpad, NULL);
}
}
static void
gst_replay_bin_handle_message (GstBin * bin, GstMessage * message)
{
GstReplayBin *self = GST_REPLAY_BIN (bin);
if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_SEGMENT_DONE) {
gboolean next_loop = TRUE;
GST_DEBUG_OBJECT (self, "Have segment done message");
g_mutex_lock (&self->lock);
if (self->num_loops != -1) {
self->num_loops--;
if (self->num_loops < 1)
next_loop = FALSE;
}
if (next_loop) {
/* Send seek event from non-streaming thread */
gst_element_call_async (GST_ELEMENT_CAST (self->uridecodebin),
(GstElementCallAsyncFunc) gst_replay_bin_do_segment_seek, self, NULL);
} else {
gst_element_foreach_src_pad (GST_ELEMENT_CAST (self->uridecodebin),
(GstElementForeachPadFunc) send_eos_foreach_srcpad, NULL);
}
g_mutex_unlock (&self->lock);
}
GST_BIN_CLASS (bin_parent_class)->handle_message (bin, message);
}
static GstElementFactory *
find_payloader (GstReplayBin * self, GstCaps * caps)
{
GList *list;
GstElementFactory *factory = NULL;
gboolean autoplug_more = FALSE;
GList *demuxers = NULL;
GList *payloaders = NULL;
demuxers = gst_rtsp_media_factory_replay_get_demuxers (self->factory);
/* first find a demuxer that can link */
list = gst_element_factory_list_filter (demuxers, caps, GST_PAD_SINK, FALSE);
if (list) {
GstStructure *structure = gst_caps_get_structure (caps, 0);
gboolean parsed = FALSE;
gint mpegversion = 0;
if (!gst_structure_get_boolean (structure, "parsed", &parsed) &&
gst_structure_has_name (structure, "audio/mpeg") &&
gst_structure_get_int (structure, "mpegversion", &mpegversion) &&
(mpegversion == 2 || mpegversion == 4)) {
/* for AAC it's framed=true instead of parsed=true */
gst_structure_get_boolean (structure, "framed", &parsed);
}
/* Avoid plugging parsers in a loop. This is not 100% correct, as some
* parsers don't set parsed=true in caps. We should do something like
* decodebin does and track decode chains and elements plugged in those
* chains...
*/
if (parsed) {
GList *walk;
const gchar *klass;
for (walk = list; walk; walk = walk->next) {
factory = GST_ELEMENT_FACTORY (walk->data);
klass = gst_element_factory_get_metadata (factory,
GST_ELEMENT_METADATA_KLASS);
if (strstr (klass, "Parser"))
/* caps have parsed=true, so skip this parser to avoid loops */
continue;
autoplug_more = TRUE;
break;
}
} else {
/* caps don't have parsed=true set and we have a demuxer/parser */
autoplug_more = TRUE;
}
gst_plugin_feature_list_free (list);
}
if (autoplug_more)
/* we have a demuxer, try that one first */
return NULL;
payloaders = gst_rtsp_media_factory_replay_get_payloaders (self->factory);
/* no demuxer try a depayloader */
list = gst_element_factory_list_filter (payloaders,
caps, GST_PAD_SINK, FALSE);
if (list == NULL) {
GList *decoders =
gst_rtsp_media_factory_replay_get_decoders (self->factory);
/* no depayloader, try a decoder, we'll get to a payloader for a decoded
* video or audio format, worst case. */
list = gst_element_factory_list_filter (decoders,
caps, GST_PAD_SINK, FALSE);
if (list != NULL) {
/* we have a decoder, try that one first */
gst_plugin_feature_list_free (list);
return NULL;
}
}
if (list != NULL) {
factory = GST_ELEMENT_FACTORY_CAST (list->data);
g_object_ref (factory);
gst_plugin_feature_list_free (list);
}
return factory;
}
static gboolean
autoplug_continue_cb (GstElement * dbin, GstPad * pad, GstCaps * caps,
GstReplayBin * self)
{
GstElementFactory *factory;
GST_DEBUG_OBJECT (self, "found pad %s:%s of caps %" GST_PTR_FORMAT,
GST_DEBUG_PAD_NAME (pad), caps);
if (!(factory = find_payloader (self, caps)))
goto no_factory;
/* we found a payloader, stop autoplugging so we can plug the
* payloader. */
GST_DEBUG_OBJECT (self, "found factory %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
gst_object_unref (factory);
return FALSE;
no_factory:
{
/* no payloader, continue autoplugging */
GST_DEBUG_OBJECT (self, "no payloader found for caps %" GST_PTR_FORMAT,
caps);
return TRUE;
}
}
static GstPadProbeReturn
replay_bin_sink_probe (GstPad * pad, GstPadProbeInfo * info,
GstReplayBin * self)
{
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
if (GST_IS_EVENT (GST_PAD_PROBE_INFO_DATA (info))) {
GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
/* Ideally this shouldn't happen because we are responding
* seeking query with non-seekable */
GST_DEBUG_OBJECT (pad, "Drop seek event");
ret = GST_PAD_PROBE_DROP;
break;
default:
break;
}
} else if (GST_IS_QUERY (GST_PAD_PROBE_INFO_DATA (info))) {
GstQuery *query = GST_PAD_PROBE_INFO_QUERY (info);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_SEEKING:
{
/* FIXME: client seek is not implemented */
gst_query_set_seeking (query, GST_FORMAT_TIME, FALSE, 0,
GST_CLOCK_TIME_NONE);
ret = GST_PAD_PROBE_HANDLED;
break;
}
case GST_QUERY_SEGMENT:
/* client seeking is not considered in here */
gst_query_set_segment (query,
1.0, GST_FORMAT_TIME, 0, GST_CLOCK_TIME_NONE);
ret = GST_PAD_PROBE_HANDLED;
break;
default:
break;
}
}
return ret;
}
static GstPadProbeReturn
replay_bin_src_block (GstPad * pad, GstPadProbeInfo * info, GstReplayBin * self)
{
GST_DEBUG_OBJECT (pad, "Block pad");
return GST_PAD_PROBE_OK;
}
static void
pad_added_cb (GstElement * dbin, GstPad * pad, GstReplayBin * self)
{
GstElementFactory *factory;
GstElement *payloader;
GstCaps *caps;
GstPad *sinkpad, *srcpad, *ghostpad;
GstPad *dpad = pad;
GstElement *convert;
gchar *padname, *payloader_name;
GstElement *inner_bin = self->inner_bin;
GstReplayBinPad *bin_pad;
GST_DEBUG_OBJECT (self, "added pad %s:%s", GST_DEBUG_PAD_NAME (pad));
/* ref to make refcounting easier later */
gst_object_ref (pad);
padname = gst_pad_get_name (pad);
/* get pad caps first, then call get_caps, then fail */
if ((caps = gst_pad_get_current_caps (pad)) == NULL)
if ((caps = gst_pad_query_caps (pad, NULL)) == NULL)
goto no_caps;
/* check for raw caps */
if (gst_caps_can_intersect (caps, self->raw_vcaps)) {
/* we have raw video caps, insert converter */
convert = gst_element_factory_make ("videoconvert", NULL);
} else if (gst_caps_can_intersect (caps, self->raw_acaps)) {
/* we have raw audio caps, insert converter */
convert = gst_element_factory_make ("audioconvert", NULL);
} else {
convert = NULL;
}
if (convert) {
gst_bin_add (GST_BIN_CAST (inner_bin), convert);
gst_element_sync_state_with_parent (convert);
sinkpad = gst_element_get_static_pad (convert, "sink");
gst_pad_link (pad, sinkpad);
gst_object_unref (sinkpad);
/* unref old pad, we reffed before */
gst_object_unref (pad);
/* continue with new pad and caps */
pad = gst_element_get_static_pad (convert, "src");
if ((caps = gst_pad_get_current_caps (pad)) == NULL)
if ((caps = gst_pad_query_caps (pad, NULL)) == NULL)
goto no_caps;
}
if (!(factory = find_payloader (self, caps)))
goto no_factory;
gst_caps_unref (caps);
/* we have a payloader now */
GST_DEBUG_OBJECT (self, "found payloader factory %s",
gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (factory)));
payloader_name = g_strdup_printf ("pay_%s", padname);
payloader = gst_element_factory_create (factory, payloader_name);
g_free (payloader_name);
if (payloader == NULL)
goto no_payloader;
g_object_set (payloader, "pt", self->pt, NULL);
self->pt++;
if (g_object_class_find_property (G_OBJECT_GET_CLASS (payloader),
"buffer-list"))
g_object_set (payloader, "buffer-list", TRUE, NULL);
/* add the payloader to the pipeline */
gst_bin_add (GST_BIN_CAST (inner_bin), payloader);
gst_element_sync_state_with_parent (payloader);
/* link the pad to the sinkpad of the payloader */
sinkpad = gst_element_get_static_pad (payloader, "sink");
gst_pad_link (pad, sinkpad);
gst_object_unref (pad);
/* Add pad probe to handle events */
gst_pad_add_probe (sinkpad,
GST_PAD_PROBE_TYPE_EVENT_UPSTREAM | GST_PAD_PROBE_TYPE_QUERY_UPSTREAM,
(GstPadProbeCallback) replay_bin_sink_probe, self, NULL);
gst_object_unref (sinkpad);
/* block data for initial segment seeking */
bin_pad = g_new0 (GstReplayBinPad, 1);
/* Move ownership of pad to this struct */
bin_pad->srcpad = gst_object_ref (dpad);
bin_pad->block_id =
gst_pad_add_probe (dpad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
(GstPadProbeCallback) replay_bin_src_block, self, NULL);
g_mutex_lock (&self->lock);
self->srcpads = g_list_append (self->srcpads, bin_pad);
g_mutex_unlock (&self->lock);
/* now expose the srcpad of the payloader as a ghostpad with the same name
* as the uridecodebin pad name. */
srcpad = gst_element_get_static_pad (payloader, "src");
ghostpad = gst_ghost_pad_new (padname, srcpad);
gst_object_unref (srcpad);
g_free (padname);
gst_pad_set_active (ghostpad, TRUE);
gst_element_add_pad (inner_bin, ghostpad);
return;
/* ERRORS */
no_caps:
{
GST_WARNING ("could not get caps from pad");
g_free (padname);
gst_object_unref (pad);
return;
}
no_factory:
{
GST_DEBUG ("no payloader found");
g_free (padname);
gst_caps_unref (caps);
gst_object_unref (pad);
return;
}
no_payloader:
{
GST_ERROR ("could not create payloader from factory");
g_free (padname);
gst_caps_unref (caps);
gst_object_unref (pad);
return;
}
}
static void
gst_replay_bin_do_initial_segment_seek (GstElement * element,
GstReplayBin * self)
{
gboolean ret;
GstQuery *query;
gboolean seekable;
query = gst_query_new_seeking (GST_FORMAT_TIME);
ret = gst_element_query (element, query);
if (!ret) {
GST_WARNING_OBJECT (self, "Cannot query seeking");
gst_query_unref (query);
goto done;
}
gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL);
gst_query_unref (query);
if (!seekable) {
GST_WARNING_OBJECT (self, "Source is not seekable");
ret = FALSE;
goto done;
}
ret = gst_element_seek (element, 1.0, GST_FORMAT_TIME,
GST_SEEK_FLAG_ACCURATE | GST_SEEK_FLAG_SEGMENT | GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_NONE, -1);
if (!ret)
GST_WARNING_OBJECT (self, "segment seeking failed");
done:
/* Unblock all pads then */
g_mutex_lock (&self->lock);
if (self->srcpads) {
g_list_free_full (self->srcpads,
(GDestroyNotify) gst_replay_bin_pad_unblock_and_free);
self->srcpads = NULL;
}
g_mutex_unlock (&self->lock);
if (!ret) {
GST_WARNING_OBJECT (self, "Sending eos to all pads");
gst_element_foreach_src_pad (element,
(GstElementForeachPadFunc) send_eos_foreach_srcpad, NULL);
}
}
static void
no_more_pads_cb (GstElement * uribin, GstReplayBin * self)
{
GST_DEBUG_OBJECT (self, "no-more-pads");
gst_element_no_more_pads (GST_ELEMENT_CAST (self->inner_bin));
/* Flush seeking from streaming thread might not be good idea.
* Do this from another (non-streaming) thread */
gst_element_call_async (GST_ELEMENT_CAST (self->uridecodebin),
(GstElementCallAsyncFunc) gst_replay_bin_do_initial_segment_seek,
self, NULL);
}
static GstElement *
gst_replay_bin_new (const gchar * uri, gint64 num_loops,
GstRTSPMediaFactoryReplay * factory, const gchar * name)
{
GstReplayBin *self;
g_return_val_if_fail (uri != NULL, NULL);
g_return_val_if_fail (GST_IS_RTSP_MEDIA_FACTORY (factory), NULL);
if (!name)
name = "GstRelayBin";
self = GST_REPLAY_BIN (g_object_new (GST_TYPE_REPLAY_BIN,
"name", name, NULL));
if (!self->uridecodebin) {
gst_object_unref (self);
return NULL;
}
g_object_set (self->uridecodebin, "uri", uri, NULL);
self->factory = g_object_ref (factory);
self->num_loops = num_loops;
return GST_ELEMENT_CAST (self);
}
struct _GstRTSPMediaFactoryReplay
{
GstRTSPMediaFactory parent;
gchar *uri;
GList *demuxers;
GList *payloaders;
GList *decoders;
gint64 num_loops;
};
enum
{
PROP_0,
PROP_URI,
PROP_NUM_LOOPS,
};
#define DEFAULT_NUM_LOOPS (-1)
static void gst_rtsp_media_factory_replay_get_property (GObject * object,
guint propid, GValue * value, GParamSpec * pspec);
static void gst_rtsp_media_factory_replay_set_property (GObject * object,
guint propid, const GValue * value, GParamSpec * pspec);
static void gst_rtsp_media_factory_replay_finalize (GObject * object);
static GstElement
* gst_rtsp_media_factory_replay_create_element (GstRTSPMediaFactory *
factory, const GstRTSPUrl * url);
typedef struct
{
GList *demux;
GList *payload;
GList *decode;
} FilterData;
static gboolean
payloader_filter (GstPluginFeature * feature, FilterData * self);
#define gst_rtsp_media_factory_replay_parent_class parent_class
G_DEFINE_TYPE (GstRTSPMediaFactoryReplay,
gst_rtsp_media_factory_replay, GST_TYPE_RTSP_MEDIA_FACTORY);
static void
gst_rtsp_media_factory_replay_class_init (GstRTSPMediaFactoryReplayClass
* klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstRTSPMediaFactoryClass *mf_class = GST_RTSP_MEDIA_FACTORY_CLASS (klass);
gobject_class->get_property = gst_rtsp_media_factory_replay_get_property;
gobject_class->set_property = gst_rtsp_media_factory_replay_set_property;
gobject_class->finalize = gst_rtsp_media_factory_replay_finalize;
g_object_class_install_property (gobject_class, PROP_URI,
g_param_spec_string ("uri", "URI",
"The URI of the resource to stream", NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_NUM_LOOPS,
g_param_spec_int64 ("num-loops", "Num Loops",
"The number of loops (-1 = infinite)", -1, G_MAXINT64,
DEFAULT_NUM_LOOPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
mf_class->create_element =
GST_DEBUG_FUNCPTR (gst_rtsp_media_factory_replay_create_element);
}
static void
gst_rtsp_media_factory_replay_init (GstRTSPMediaFactoryReplay * self)
{
FilterData data = { NULL, };
/* get the feature list using the filter */
gst_registry_feature_filter (gst_registry_get (), (GstPluginFeatureFilter)
payloader_filter, FALSE, &data);
/* sort */
self->demuxers =
g_list_sort (data.demux, gst_plugin_feature_rank_compare_func);
self->payloaders =
g_list_sort (data.payload, gst_plugin_feature_rank_compare_func);
self->decoders =
g_list_sort (data.decode, gst_plugin_feature_rank_compare_func);
self->num_loops = DEFAULT_NUM_LOOPS;
}
static void
gst_rtsp_media_factory_replay_get_property (GObject * object, guint propid,
GValue * value, GParamSpec * pspec)
{
GstRTSPMediaFactoryReplay *self = GST_RTSP_MEDIA_FACTORY_REPLAY (object);
switch (propid) {
case PROP_URI:
g_value_take_string (value, self->uri);
break;
case PROP_NUM_LOOPS:
g_value_set_int64 (value, self->num_loops);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
}
}
static void
gst_rtsp_media_factory_replay_set_property (GObject * object, guint propid,
const GValue * value, GParamSpec * pspec)
{
GstRTSPMediaFactoryReplay *self = GST_RTSP_MEDIA_FACTORY_REPLAY (object);
switch (propid) {
case PROP_URI:
g_free (self->uri);
self->uri = g_value_dup_string (value);
break;
case PROP_NUM_LOOPS:
self->num_loops = g_value_get_int64 (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
}
}
static void
gst_rtsp_media_factory_replay_finalize (GObject * object)
{
GstRTSPMediaFactoryReplay *self = GST_RTSP_MEDIA_FACTORY_REPLAY (object);
g_free (self->uri);
gst_plugin_feature_list_free (self->demuxers);
gst_plugin_feature_list_free (self->payloaders);
gst_plugin_feature_list_free (self->decoders);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstElement *
gst_rtsp_media_factory_replay_create_element (GstRTSPMediaFactory * factory,
const GstRTSPUrl * url)
{
GstRTSPMediaFactoryReplay *self = GST_RTSP_MEDIA_FACTORY_REPLAY (factory);
return gst_replay_bin_new (self->uri, self->num_loops, self,
"GstRTSPMediaFactoryReplay");
}
static gboolean
payloader_filter (GstPluginFeature * feature, FilterData * data)
{
const gchar *klass;
GstElementFactory *fact;
GList **list = NULL;
/* we only care about element factories */
if (G_UNLIKELY (!GST_IS_ELEMENT_FACTORY (feature)))
return FALSE;
if (gst_plugin_feature_get_rank (feature) < GST_RANK_MARGINAL)
return FALSE;
fact = GST_ELEMENT_FACTORY_CAST (feature);
klass = gst_element_factory_get_metadata (fact, GST_ELEMENT_METADATA_KLASS);
if (strstr (klass, "Decoder"))
list = &data->decode;
else if (strstr (klass, "Demux"))
list = &data->demux;
else if (strstr (klass, "Parser") && strstr (klass, "Codec"))
list = &data->demux;
else if (strstr (klass, "Payloader") && strstr (klass, "RTP"))
list = &data->payload;
if (list) {
GST_LOG ("adding %s", GST_OBJECT_NAME (fact));
*list = g_list_prepend (*list, gst_object_ref (fact));
}
return FALSE;
}
static GList *
gst_rtsp_media_factory_replay_get_demuxers (GstRTSPMediaFactoryReplay * factory)
{
return factory->demuxers;
}
static GList *
gst_rtsp_media_factory_replay_get_payloaders (GstRTSPMediaFactoryReplay *
factory)
{
return factory->payloaders;
}
static GList *
gst_rtsp_media_factory_replay_get_decoders (GstRTSPMediaFactoryReplay * factory)
{
return factory->decoders;
}
static GstRTSPMediaFactory *
gst_rtsp_media_factory_replay_new (const gchar * uri, gint64 num_loops)
{
GstRTSPMediaFactory *factory;
factory =
GST_RTSP_MEDIA_FACTORY (g_object_new
(GST_TYPE_RTSP_MEDIA_FACTORY_REPLAY, "uri", uri, "num-loops", num_loops,
NULL));
return factory;
}
int
main (int argc, char *argv[])
{
GMainLoop *loop;
GstRTSPServer *server;
GstRTSPMountPoints *mounts;
GstRTSPMediaFactory *factory;
GOptionContext *optctx;
GError *error = NULL;
gchar *service;
gchar *uri = NULL;
gint64 num_loops = -1;
GOptionEntry options[] = {
{"num-loops", 0, 0, G_OPTION_ARG_INT64, &num_loops,
"The number of loops (default = -1, infinite)", NULL},
{NULL}
};
optctx = g_option_context_new ("RTSP Replay Server");
g_option_context_add_main_entries (optctx, options, NULL);
g_option_context_add_group (optctx, gst_init_get_option_group ());
if (!g_option_context_parse (optctx, &argc, &argv, &error)) {
g_printerr ("Error parsing options: %s\n", error->message);
g_option_context_free (optctx);
g_clear_error (&error);
return -1;
}
if (argc < 2) {
g_print ("%s\n", g_option_context_get_help (optctx, TRUE, NULL));
return 1;
}
g_option_context_free (optctx);
/* check if URI is valid, otherwise convert filename to URI if it's a file */
if (gst_uri_is_valid (argv[1])) {
uri = g_strdup (argv[1]);
} else if (g_file_test (argv[1], G_FILE_TEST_EXISTS)) {
uri = gst_filename_to_uri (argv[1], NULL);
} else {
g_printerr ("Unrecognised command line argument '%s'.\n"
"Please pass an URI or file as argument!\n", argv[1]);
return -1;
}
if (num_loops < -1 || num_loops == 0) {
g_printerr ("num-loop should be non-zero or -1");
return -1;
}
GST_DEBUG_CATEGORY_INIT (replay_server_debug, "replay-server", 0,
"RTSP replay server");
if (num_loops != -1)
g_print ("Run loop %" G_GINT64_FORMAT " times\n", num_loops);
loop = g_main_loop_new (NULL, FALSE);
server = gst_rtsp_server_new ();
mounts = gst_rtsp_server_get_mount_points (server);
factory = gst_rtsp_media_factory_replay_new (uri, num_loops);
g_free (uri);
gst_rtsp_mount_points_add_factory (mounts, "/test", factory);
g_object_unref (mounts);
gst_rtsp_server_attach (server, NULL);
service = gst_rtsp_server_get_service (server);
g_print ("stream ready at rtsp://127.0.0.1:%s/test\n", service);
g_free (service);
g_main_loop_run (loop);
return 0;
}