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appsrc: Make caps set action queued together with buffer

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=729760
This commit is contained in:
Wang Xin-yu (王昕宇) 2014-08-06 09:59:32 -04:00 committed by Sebastian Dröge
parent a0a9fd004b
commit 251c63c4ab
1 changed files with 59 additions and 27 deletions
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86
gst-libs/gst/app/gstappsrc.c
View file

@ -104,14 +104,15 @@ struct _GstAppSrcPrivate
GMutex mutex;
GQueue *queue;
GstCaps *caps;
GstCaps *last_caps;
GstCaps *current_caps;
gint64 size;
GstAppStreamType stream_type;
guint64 max_bytes;
GstFormat format;
gboolean block;
gchar *uri;
gboolean new_caps;
gboolean flushing;
gboolean started;
@ -530,11 +531,15 @@ gst_app_src_init (GstAppSrc * appsrc)
static void
gst_app_src_flush_queued (GstAppSrc * src)
{
GstBuffer *buf;
GstMiniObject *caps_or_buffer;
GstAppSrcPrivate *priv = src->priv;
while ((buf = g_queue_pop_head (priv->queue)))
gst_buffer_unref (buf);
while ((caps_or_buffer = g_queue_pop_head (priv->queue))) {
if (caps_or_buffer) {
gst_mini_object_unref (caps_or_buffer);
}
}
priv->queued_bytes = 0;
}
@ -545,9 +550,13 @@ gst_app_src_dispose (GObject * obj)
GstAppSrcPrivate *priv = appsrc->priv;
GST_OBJECT_LOCK (appsrc);
if (priv->caps) {
gst_caps_unref (priv->caps);
priv->caps = NULL;
if (priv->current_caps) {
gst_caps_unref (priv->current_caps);
priv->current_caps = NULL;
}
if (priv->last_caps) {
gst_caps_unref (priv->last_caps);
priv->last_caps = NULL;
}
if (priv->notify) {
priv->notify (priv->user_data);
@ -583,7 +592,7 @@ gst_app_src_internal_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
GstCaps *caps;
GST_OBJECT_LOCK (appsrc);
if ((caps = appsrc->priv->caps))
if ((caps = appsrc->priv->current_caps))
gst_caps_ref (caps);
GST_OBJECT_UNLOCK (appsrc);
@ -767,7 +776,6 @@ gst_app_src_start (GstBaseSrc * bsrc)
g_mutex_lock (&priv->mutex);
GST_DEBUG_OBJECT (appsrc, "starting");
priv->new_caps = FALSE;
priv->started = TRUE;
/* set the offset to -1 so that we always do a first seek. This is only used
* in random-access mode. */
@ -978,7 +986,7 @@ gst_app_src_do_negotiate (GstBaseSrc * basesrc)
GstCaps *caps;
GST_OBJECT_LOCK (basesrc);
caps = priv->caps ? gst_caps_ref (priv->caps) : NULL;
caps = priv->current_caps ? gst_caps_ref (priv->current_caps) : NULL;
GST_OBJECT_UNLOCK (basesrc);
/* Avoid deadlock by unlocking mutex
@ -1003,7 +1011,6 @@ gst_app_src_negotiate (GstBaseSrc * basesrc)
gboolean result;
g_mutex_lock (&priv->mutex);
priv->new_caps = FALSE;
result = gst_app_src_do_negotiate (basesrc);
g_mutex_unlock (&priv->mutex);
return result;
@ -1059,10 +1066,26 @@ gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
/* return data as long as we have some */
if (!g_queue_is_empty (priv->queue)) {
guint buf_size;
GstMiniObject *caps_or_buffer = g_queue_pop_head (priv->queue);
if (priv->new_caps) {
priv->new_caps = FALSE;
gst_app_src_do_negotiate (bsrc);
if (!GST_IS_BUFFER (caps_or_buffer)) {
GstCaps *next_caps = caps_or_buffer;
gboolean caps_changed = TRUE;
if (next_caps && priv->current_caps)
caps_changed = !gst_caps_is_equal (next_caps, priv->current_caps);
else
caps_changed = (next_caps != priv->current_caps);
gst_caps_replace (&priv->current_caps, next_caps);
if (next_caps) {
gst_caps_unref (next_caps);
}
if (caps_changed)
gst_app_src_do_negotiate (bsrc);
/* Lock has released so now may need
*- flushing
@ -1073,7 +1096,7 @@ gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
/* Contiue checks caps and queue */
continue;
}
*buf = g_queue_pop_head (priv->queue);
*buf = GST_BUFFER (caps_or_buffer);
buf_size = gst_buffer_get_size (*buf);
GST_DEBUG_OBJECT (appsrc, "we have buffer %p of size %u", *buf, buf_size);
@ -1161,7 +1184,7 @@ seek_error:
void
gst_app_src_set_caps (GstAppSrc * appsrc, const GstCaps * caps)
{
GstCaps *old;
GstCaps *new_caps;
GstAppSrcPrivate *priv;
g_return_if_fail (GST_IS_APP_SRC (appsrc));
@ -1172,15 +1195,15 @@ gst_app_src_set_caps (GstAppSrc * appsrc, const GstCaps * caps)
GST_OBJECT_LOCK (appsrc);
GST_DEBUG_OBJECT (appsrc, "setting caps to %" GST_PTR_FORMAT, caps);
if ((old = priv->caps) != caps) {
if (caps)
priv->caps = gst_caps_copy (caps);
else
priv->caps = NULL;
if (old)
gst_caps_unref (old);
priv->new_caps = TRUE;
}
if (caps)
new_caps = gst_caps_copy (caps);
else
new_caps = NULL;
g_queue_push_tail (priv->queue, new_caps);
gst_caps_replace (&priv->last_caps, new_caps);
GST_OBJECT_UNLOCK (appsrc);
g_mutex_unlock (&priv->mutex);
@ -1197,9 +1220,18 @@ gst_app_src_set_caps (GstAppSrc * appsrc, const GstCaps * caps)
GstCaps *
gst_app_src_get_caps (GstAppSrc * appsrc)
{
GstCaps *caps;
g_return_val_if_fail (GST_IS_APP_SRC (appsrc), NULL);
return gst_app_src_internal_get_caps (GST_BASE_SRC_CAST (appsrc), NULL);
GST_OBJECT_LOCK (appsrc);
if ((caps = appsrc->priv->last_caps))
gst_caps_ref (caps);
GST_OBJECT_UNLOCK (appsrc);
return caps;
}
/**