mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 10:41:04 +00:00
media: add lock to protect state changes
This commit is contained in:
Wim Taymans
parent
4753588b09
commit
9a97de88ea
2 changed files with 138 additions and 27 deletions
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@ -156,6 +156,7 @@ gst_rtsp_media_init (GstRTSPMedia * media)
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media->streams = g_ptr_array_new_with_free_func (g_object_unref);
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g_mutex_init (&media->lock);
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g_cond_init (&media->cond);
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g_rec_mutex_init (&media->state_lock);
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media->shared = DEFAULT_SHARED;
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media->reusable = DEFAULT_REUSABLE;
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@ -187,6 +188,7 @@ gst_rtsp_media_finalize (GObject * obj)
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g_free (media->multicast_group);
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g_mutex_clear (&media->lock);
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g_cond_clear (&media->cond);
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g_rec_mutex_clear (&media->state_lock);
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G_OBJECT_CLASS (gst_rtsp_media_parent_class)->finalize (obj);
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}
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@ -267,6 +269,7 @@ do_loop (GstRTSPMediaClass * klass)
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return NULL;
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}
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/* must be called with state lock */
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static void
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collect_media_stats (GstRTSPMedia * media)
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{
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@ -349,7 +352,9 @@ gst_rtsp_media_set_shared (GstRTSPMedia * media, gboolean shared)
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{
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g_return_if_fail (GST_IS_RTSP_MEDIA (media));
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g_mutex_lock (&media->lock);
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media->shared = shared;
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g_mutex_unlock (&media->lock);
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}
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/**
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@ -363,9 +368,15 @@ gst_rtsp_media_set_shared (GstRTSPMedia * media, gboolean shared)
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gboolean
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gst_rtsp_media_is_shared (GstRTSPMedia * media)
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{
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gboolean res;
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g_return_val_if_fail (GST_IS_RTSP_MEDIA (media), FALSE);
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return media->shared;
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g_mutex_lock (&media->lock);
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res = media->shared;
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g_mutex_unlock (&media->lock);
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return res;
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}
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/**
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@ -381,7 +392,9 @@ gst_rtsp_media_set_reusable (GstRTSPMedia * media, gboolean reusable)
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{
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g_return_if_fail (GST_IS_RTSP_MEDIA (media));
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g_mutex_lock (&media->lock);
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media->reusable = reusable;
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g_mutex_unlock (&media->lock);
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}
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/**
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@ -395,9 +408,15 @@ gst_rtsp_media_set_reusable (GstRTSPMedia * media, gboolean reusable)
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gboolean
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gst_rtsp_media_is_reusable (GstRTSPMedia * media)
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{
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gboolean res;
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g_return_val_if_fail (GST_IS_RTSP_MEDIA (media), FALSE);
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return media->reusable;
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g_mutex_lock (&media->lock);
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res = media->reusable;
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g_mutex_unlock (&media->lock);
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return res;
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}
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/**
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@ -412,7 +431,9 @@ gst_rtsp_media_set_protocols (GstRTSPMedia * media, GstRTSPLowerTrans protocols)
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{
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g_return_if_fail (GST_IS_RTSP_MEDIA (media));
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g_mutex_lock (&media->lock);
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media->protocols = protocols;
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g_mutex_unlock (&media->lock);
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}
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/**
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@ -426,10 +447,16 @@ gst_rtsp_media_set_protocols (GstRTSPMedia * media, GstRTSPLowerTrans protocols)
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GstRTSPLowerTrans
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gst_rtsp_media_get_protocols (GstRTSPMedia * media)
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{
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GstRTSPLowerTrans res;
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g_return_val_if_fail (GST_IS_RTSP_MEDIA (media),
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GST_RTSP_LOWER_TRANS_UNKNOWN);
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return media->protocols;
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g_mutex_lock (&media->lock);
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res = media->protocols;
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g_mutex_unlock (&media->lock);
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return res;
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}
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/**
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@ -445,7 +472,9 @@ gst_rtsp_media_set_eos_shutdown (GstRTSPMedia * media, gboolean eos_shutdown)
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{
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g_return_if_fail (GST_IS_RTSP_MEDIA (media));
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g_mutex_lock (&media->lock);
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media->eos_shutdown = eos_shutdown;
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g_mutex_unlock (&media->lock);
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}
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/**
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@ -460,9 +489,15 @@ gst_rtsp_media_set_eos_shutdown (GstRTSPMedia * media, gboolean eos_shutdown)
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gboolean
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gst_rtsp_media_is_eos_shutdown (GstRTSPMedia * media)
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{
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gboolean res;
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g_return_val_if_fail (GST_IS_RTSP_MEDIA (media), FALSE);
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return media->eos_shutdown;
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g_mutex_lock (&media->lock);
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res = media->eos_shutdown;
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g_mutex_unlock (&media->lock);
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return res;
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}
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/**
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@ -477,7 +512,9 @@ gst_rtsp_media_set_buffer_size (GstRTSPMedia * media, guint size)
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{
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g_return_if_fail (GST_IS_RTSP_MEDIA (media));
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g_mutex_lock (&media->lock);
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media->buffer_size = size;
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g_mutex_unlock (&media->lock);
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}
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/**
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@ -491,9 +528,15 @@ gst_rtsp_media_set_buffer_size (GstRTSPMedia * media, guint size)
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guint
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gst_rtsp_media_get_buffer_size (GstRTSPMedia * media)
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{
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guint res;
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g_return_val_if_fail (GST_IS_RTSP_MEDIA (media), FALSE);
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return media->buffer_size;
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g_mutex_unlock (&media->lock);
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res = media->buffer_size;
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g_mutex_unlock (&media->lock);
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return res;
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}
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/**
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@ -516,11 +559,11 @@ gst_rtsp_media_set_multicast_group (GstRTSPMedia * media, const gchar * mc)
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/**
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* gst_rtsp_media_get_multicast_group:
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* @media: a #GstRTSPMedia
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* @media: (transfer full): a #GstRTSPMedia
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*
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* Get the multicast group that media from @media will be streamed to.
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*
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* Returns: the multicast group
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* Returns: the multicast group, g_free after usage.
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*/
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gchar *
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gst_rtsp_media_get_multicast_group (GstRTSPMedia * media)
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@ -550,15 +593,15 @@ gst_rtsp_media_set_auth (GstRTSPMedia * media, GstRTSPAuth * auth)
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g_return_if_fail (GST_IS_RTSP_MEDIA (media));
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old = media->auth;
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g_mutex_lock (&media->lock);
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if ((old = media->auth) != auth)
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media->auth = auth ? g_object_ref (auth) : NULL;
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else
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old = NULL;
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g_mutex_unlock (&media->lock);
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if (old != auth) {
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if (auth)
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g_object_ref (auth);
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media->auth = auth;
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if (old)
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g_object_unref (old);
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}
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}
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/**
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@ -577,8 +620,10 @@ gst_rtsp_media_get_auth (GstRTSPMedia * media)
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g_return_val_if_fail (GST_IS_RTSP_MEDIA (media), NULL);
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g_mutex_lock (&media->lock);
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if ((result = media->auth))
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g_object_ref (result);
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g_mutex_unlock (&media->lock);
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return result;
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}
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@ -598,6 +643,7 @@ gst_rtsp_media_set_mtu (GstRTSPMedia * media, guint mtu)
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g_return_if_fail (GST_IS_RTSP_MEDIA (media));
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g_mutex_lock (&media->lock);
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media->mtu = mtu;
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for (i = 0; i < media->streams->len; i++) {
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GstRTSPStream *stream;
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@ -607,6 +653,7 @@ gst_rtsp_media_set_mtu (GstRTSPMedia * media, guint mtu)
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stream = g_ptr_array_index (media->streams, i);
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gst_rtsp_stream_set_mtu (stream, mtu);
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}
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g_mutex_unlock (&media->lock);
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}
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/**
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@ -618,9 +665,15 @@ gst_rtsp_media_set_mtu (GstRTSPMedia * media, guint mtu)
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guint
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gst_rtsp_media_get_mtu (GstRTSPMedia * media)
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{
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guint res;
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g_return_val_if_fail (GST_IS_RTSP_MEDIA (media), 0);
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return media->mtu;
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g_mutex_lock (&media->lock);
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res = media->mtu;
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g_mutex_unlock (&media->lock);
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return res;
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}
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/**
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@ -673,7 +726,9 @@ gst_rtsp_media_collect_streams (GstRTSPMedia * media)
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GST_INFO ("found dynamic element %d, %p", i, elem);
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g_mutex_lock (&media->lock);
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media->dynamic = g_list_prepend (media->dynamic, elem);
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g_mutex_unlock (&media->lock);
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have_elem = TRUE;
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}
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@ -707,6 +762,7 @@ gst_rtsp_media_create_stream (GstRTSPMedia * media, GstElement * payloader,
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g_return_val_if_fail (GST_IS_PAD (pad), NULL);
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g_return_val_if_fail (GST_PAD_IS_SRC (pad), NULL);
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g_mutex_lock (&media->lock);
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idx = media->streams->len;
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name = g_strdup_printf ("src_%u", idx);
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@ -720,6 +776,7 @@ gst_rtsp_media_create_stream (GstRTSPMedia * media, GstElement * payloader,
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gst_rtsp_stream_set_mtu (stream, media->mtu);
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g_ptr_array_add (media->streams, stream);
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g_mutex_unlock (&media->lock);
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return stream;
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}
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@ -735,9 +792,15 @@ gst_rtsp_media_create_stream (GstRTSPMedia * media, GstElement * payloader,
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guint
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gst_rtsp_media_n_streams (GstRTSPMedia * media)
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{
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guint res;
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g_return_val_if_fail (GST_IS_RTSP_MEDIA (media), 0);
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return media->streams->len;
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g_mutex_lock (&media->lock);
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res = media->streams->len;
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g_mutex_unlock (&media->lock);
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return res;
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}
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/**
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@ -757,10 +820,12 @@ gst_rtsp_media_get_stream (GstRTSPMedia * media, guint idx)
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g_return_val_if_fail (GST_IS_RTSP_MEDIA (media), NULL);
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g_mutex_lock (&media->lock);
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if (idx < media->streams->len)
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res = g_ptr_array_index (media->streams, idx);
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else
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res = NULL;
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g_mutex_unlock (&media->lock);
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return res;
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}
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@ -780,6 +845,7 @@ gst_rtsp_media_get_range_string (GstRTSPMedia * media, gboolean play)
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gchar *result;
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GstRTSPTimeRange range;
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g_mutex_lock (&media->lock);
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/* make copy */
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range = media->range;
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@ -787,6 +853,7 @@ gst_rtsp_media_get_range_string (GstRTSPMedia * media, gboolean play)
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range.min.type = GST_RTSP_TIME_NOW;
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range.min.seconds = -1;
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}
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g_mutex_unlock (&media->lock);
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result = gst_rtsp_range_to_string (&range);
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@ -813,10 +880,9 @@ gst_rtsp_media_seek (GstRTSPMedia * media, GstRTSPTimeRange * range)
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g_return_val_if_fail (GST_IS_RTSP_MEDIA (media), FALSE);
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g_return_val_if_fail (range != NULL, FALSE);
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if (!media->seekable) {
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GST_INFO ("pipeline is not seekable");
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return TRUE;
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}
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g_rec_mutex_lock (&media->state_lock);
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if (!media->seekable)
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goto not_seekable;
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if (range->unit != GST_RTSP_RANGE_NPT)
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goto not_supported;
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@ -880,17 +946,26 @@ gst_rtsp_media_seek (GstRTSPMedia * media, GstRTSPTimeRange * range)
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GST_INFO ("no seek needed");
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res = TRUE;
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}
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g_rec_mutex_unlock (&media->state_lock);
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return res;
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/* ERRORS */
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not_seekable:
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{
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g_rec_mutex_unlock (&media->state_lock);
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GST_INFO ("pipeline is not seekable");
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return TRUE;
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}
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not_supported:
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{
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g_rec_mutex_unlock (&media->state_lock);
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GST_WARNING ("seek unit %d not supported", range->unit);
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return FALSE;
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}
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weird_type:
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{
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g_rec_mutex_unlock (&media->state_lock);
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GST_WARNING ("weird range type %d not supported", range->min.type);
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return FALSE;
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}
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@ -952,6 +1027,7 @@ default_handle_message (GstRTSPMedia * media, GstMessage * message)
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if (media->is_live)
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break;
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g_rec_mutex_lock (&media->state_lock);
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if (percent == 100) {
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/* a 100% message means buffering is done */
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media->buffering = FALSE;
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@ -974,6 +1050,7 @@ default_handle_message (GstRTSPMedia * media, GstMessage * message)
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}
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}
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media->buffering = TRUE;
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g_rec_mutex_unlock (&media->state_lock);
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}
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break;
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}
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@ -1011,6 +1088,7 @@ default_handle_message (GstRTSPMedia * media, GstMessage * message)
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case GST_MESSAGE_STREAM_STATUS:
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break;
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case GST_MESSAGE_ASYNC_DONE:
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g_rec_mutex_lock (&media->state_lock);
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if (!media->adding) {
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/* when we are dynamically adding pads, the addition of the udpsrc will
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* temporarily produce ASYNC_DONE messages. We have to ignore them and
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@ -1022,14 +1100,18 @@ default_handle_message (GstRTSPMedia * media, GstMessage * message)
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} else {
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GST_INFO ("%p: ignoring ASYNC_DONE", media);
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}
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g_rec_mutex_unlock (&media->state_lock);
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break;
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case GST_MESSAGE_EOS:
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GST_INFO ("%p: got EOS", media);
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g_rec_mutex_lock (&media->state_lock);
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if (media->status == GST_RTSP_MEDIA_STATUS_UNPREPARING) {
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GST_DEBUG ("shutting down after EOS");
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finish_unprepare (media);
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g_object_unref (media);
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}
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g_rec_mutex_unlock (&media->state_lock);
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break;
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default:
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GST_INFO ("%p: got message type %s", media,
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@ -1067,6 +1149,7 @@ pad_added_cb (GstElement * element, GstPad * pad, GstRTSPMedia * media)
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GST_INFO ("pad added %s:%s, stream %d", GST_DEBUG_PAD_NAME (pad),
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stream->idx);
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g_rec_mutex_lock (&media->state_lock);
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/* we will be adding elements below that will cause ASYNC_DONE to be
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* posted in the bus. We want to ignore those messages until the
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* pipeline really prerolled. */
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@ -1078,18 +1161,24 @@ pad_added_cb (GstElement * element, GstPad * pad, GstRTSPMedia * media)
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media->rtpbin, GST_STATE_PAUSED);
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media->adding = FALSE;
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g_rec_mutex_unlock (&media->state_lock);
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}
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static void
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no_more_pads_cb (GstElement * element, GstRTSPMedia * media)
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{
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GstElement *fakesink;
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g_mutex_lock (&media->lock);
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GST_INFO ("no more pads");
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if (media->fakesink) {
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gst_object_ref (media->fakesink);
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gst_bin_remove (GST_BIN (media->pipeline), media->fakesink);
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gst_element_set_state (media->fakesink, GST_STATE_NULL);
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gst_object_unref (media->fakesink);
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if ((fakesink = media->fakesink)) {
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gst_object_ref (fakesink);
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media->fakesink = NULL;
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g_mutex_unlock (&media->lock);
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gst_bin_remove (GST_BIN (media->pipeline), fakesink);
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gst_element_set_state (fakesink, GST_STATE_NULL);
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gst_object_unref (fakesink);
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GST_INFO ("removed fakesink");
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}
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}
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@ -1116,6 +1205,7 @@ gst_rtsp_media_prepare (GstRTSPMedia * media)
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GstBus *bus;
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GList *walk;
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g_rec_mutex_lock (&media->state_lock);
|
||||
if (media->status == GST_RTSP_MEDIA_STATUS_PREPARED)
|
||||
goto was_prepared;
|
||||
|
||||
|
|
@ -1202,6 +1292,7 @@ gst_rtsp_media_prepare (GstRTSPMedia * media)
|
|||
case GST_STATE_CHANGE_FAILURE:
|
||||
goto state_failed;
|
||||
}
|
||||
g_rec_mutex_unlock (&media->state_lock);
|
||||
|
||||
/* now wait for all pads to be prerolled, FIXME, we should somehow be
|
||||
* able to do this async so that we don't block the server thread. */
|
||||
|
|
@ -1218,16 +1309,19 @@ gst_rtsp_media_prepare (GstRTSPMedia * media)
|
|||
/* OK */
|
||||
was_prepared:
|
||||
{
|
||||
g_rec_mutex_unlock (&media->state_lock);
|
||||
return TRUE;
|
||||
}
|
||||
/* ERRORS */
|
||||
is_reused:
|
||||
{
|
||||
g_rec_mutex_unlock (&media->state_lock);
|
||||
GST_WARNING ("can not reuse media %p", media);
|
||||
return FALSE;
|
||||
}
|
||||
no_rtpbin:
|
||||
{
|
||||
g_rec_mutex_unlock (&media->state_lock);
|
||||
GST_WARNING ("no rtpbin element");
|
||||
g_warning ("failed to create element 'rtpbin', check your installation");
|
||||
return FALSE;
|
||||
|
|
@ -1236,10 +1330,12 @@ state_failed:
|
|||
{
|
||||
GST_WARNING ("failed to preroll pipeline");
|
||||
gst_rtsp_media_unprepare (media);
|
||||
g_rec_mutex_unlock (&media->state_lock);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
/* must be called with state-lock */
|
||||
static void
|
||||
finish_unprepare (GstRTSPMedia * media)
|
||||
{
|
||||
|
|
@ -1275,6 +1371,7 @@ finish_unprepare (GstRTSPMedia * media)
|
|||
g_signal_emit (media, gst_rtsp_media_signals[SIGNAL_UNPREPARED], 0, NULL);
|
||||
}
|
||||
|
||||
/* called with state-lock */
|
||||
static gboolean
|
||||
default_unprepare (GstRTSPMedia * media)
|
||||
{
|
||||
|
|
@ -1308,8 +1405,9 @@ gst_rtsp_media_unprepare (GstRTSPMedia * media)
|
|||
{
|
||||
gboolean success;
|
||||
|
||||
g_rec_mutex_lock (&media->state_lock);
|
||||
if (media->status == GST_RTSP_MEDIA_STATUS_UNPREPARED)
|
||||
return TRUE;
|
||||
goto was_unprepared;
|
||||
|
||||
GST_INFO ("unprepare media %p", media);
|
||||
media->target_state = GST_STATE_NULL;
|
||||
|
|
@ -1324,8 +1422,16 @@ gst_rtsp_media_unprepare (GstRTSPMedia * media)
|
|||
} else {
|
||||
finish_unprepare (media);
|
||||
}
|
||||
g_rec_mutex_unlock (&media->state_lock);
|
||||
|
||||
return success;
|
||||
|
||||
was_unprepared:
|
||||
{
|
||||
g_rec_mutex_unlock (&media->state_lock);
|
||||
GST_INFO ("media %p was already unprepared", media);
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -1349,6 +1455,8 @@ gst_rtsp_media_set_state (GstRTSPMedia * media, GstState state,
|
|||
g_return_val_if_fail (GST_IS_RTSP_MEDIA (media), FALSE);
|
||||
g_return_val_if_fail (transports != NULL, FALSE);
|
||||
|
||||
g_rec_mutex_lock (&media->state_lock);
|
||||
|
||||
/* NULL and READY are the same */
|
||||
if (state == GST_STATE_READY)
|
||||
state = GST_STATE_NULL;
|
||||
|
|
@ -1427,5 +1535,7 @@ gst_rtsp_media_set_state (GstRTSPMedia * media, GstState state,
|
|||
old_active != media->n_active))
|
||||
collect_media_stats (media);
|
||||
|
||||
g_rec_mutex_unlock (&media->state_lock);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -116,6 +116,7 @@ struct _GstRTSPMedia {
|
|||
guint mtu;
|
||||
|
||||
GstElement *element;
|
||||
GRecMutex state_lock;
|
||||
GPtrArray *streams;
|
||||
GList *dynamic;
|
||||
GstRTSPMediaStatus status;
|
||||
|
|
|
|||
Loading…
Reference in a new issue