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appsrc: use GstQueueArray instead of GQueue for internal item queue

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Performance optimisation.

Avoids alloc/free churn for the queue's list nodes.

Depends on new API in GstQueueArray in core.
This commit is contained in:
Tim-Philipp Müller 2018-02-01 01:22:21 +00:00
parent 0846ceef59
commit 5a5a1f0dc6
1 changed files with 18 additions and 15 deletions
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33
gst-libs/gst/app/gstappsrc.c
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@ -95,7 +95,7 @@
#endif
#include <gst/gst.h>
#include <gst/base/gstbasesrc.h>
#include <gst/base/base.h>
#include <string.h>
@ -105,7 +105,7 @@ struct _GstAppSrcPrivate
{
GCond cond;
GMutex mutex;
GQueue *queue;
GstQueueArray *queue;
GstCaps *last_caps;
GstCaps *current_caps;
@ -568,7 +568,7 @@ gst_app_src_init (GstAppSrc * appsrc)
g_mutex_init (&priv->mutex);
g_cond_init (&priv->cond);
priv->queue = g_queue_new ();
priv->queue = gst_queue_array_new (16);
priv->size = DEFAULT_PROP_SIZE;
priv->duration = DEFAULT_PROP_DURATION;
@ -592,8 +592,8 @@ gst_app_src_flush_queued (GstAppSrc * src, gboolean retain_last_caps)
GstAppSrcPrivate *priv = src->priv;
GstCaps *requeue_caps = NULL;
while (!g_queue_is_empty (priv->queue)) {
obj = g_queue_pop_head (priv->queue);
while (!gst_queue_array_is_empty (priv->queue)) {
obj = gst_queue_array_pop_head (priv->queue);
if (obj) {
if (GST_IS_CAPS (obj) && retain_last_caps) {
gst_caps_replace (&requeue_caps, GST_CAPS_CAST (obj));
@ -603,7 +603,7 @@ gst_app_src_flush_queued (GstAppSrc * src, gboolean retain_last_caps)
}
if (requeue_caps) {
g_queue_push_tail (priv->queue, requeue_caps);
gst_queue_array_push_tail (priv->queue, requeue_caps);
}
priv->queued_bytes = 0;
@ -647,7 +647,7 @@ gst_app_src_finalize (GObject * obj)
g_mutex_clear (&priv->mutex);
g_cond_clear (&priv->cond);
g_queue_free (priv->queue);
gst_queue_array_free (priv->queue);
g_free (priv->uri);
@ -1173,9 +1173,9 @@ gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
while (TRUE) {
/* return data as long as we have some */
if (!g_queue_is_empty (priv->queue)) {
if (!gst_queue_array_is_empty (priv->queue)) {
guint buf_size;
GstMiniObject *obj = g_queue_pop_head (priv->queue);
GstMiniObject *obj = gst_queue_array_pop_head (priv->queue);
if (GST_IS_CAPS (obj)) {
GstCaps *next_caps = GST_CAPS (obj);
@ -1256,7 +1256,7 @@ gst_app_src_create (GstBaseSrc * bsrc, guint64 offset, guint size,
* signal) we can still be empty because the pushed buffer got flushed or
* when the application pushes the requested buffer later, we support both
* possibilities. */
if (!g_queue_is_empty (priv->queue))
if (!gst_queue_array_is_empty (priv->queue))
continue;
/* no buffer yet, maybe we are EOS, if not, block for more data. */
@ -1326,12 +1326,15 @@ gst_app_src_set_caps (GstAppSrc * appsrc, const GstCaps * caps)
if (caps_changed) {
GstCaps *new_caps;
gpointer t;
new_caps = caps ? gst_caps_copy (caps) : NULL;
GST_DEBUG_OBJECT (appsrc, "setting caps to %" GST_PTR_FORMAT, caps);
if (priv->queue->tail != NULL && GST_IS_CAPS (priv->queue->tail->data)) {
gst_caps_unref (g_queue_pop_tail (priv->queue));
while ((t = gst_queue_array_peek_tail (priv->queue)) && GST_IS_CAPS (t)) {
gst_caps_unref (gst_queue_array_pop_tail (priv->queue));
}
g_queue_push_tail (priv->queue, new_caps);
gst_queue_array_push_tail (priv->queue, new_caps);
gst_caps_replace (&priv->last_caps, new_caps);
}
@ -1840,13 +1843,13 @@ gst_app_src_push_internal (GstAppSrc * appsrc, GstBuffer * buffer,
GST_DEBUG_OBJECT (appsrc, "queueing buffer list %p", buflist);
if (!steal_ref)
gst_buffer_list_ref (buflist);
g_queue_push_tail (priv->queue, buflist);
gst_queue_array_push_tail (priv->queue, buflist);
priv->queued_bytes += gst_buffer_list_calculate_size (buflist);
} else {
GST_DEBUG_OBJECT (appsrc, "queueing buffer %p", buffer);
if (!steal_ref)
gst_buffer_ref (buffer);
g_queue_push_tail (priv->queue, buffer);
gst_queue_array_push_tail (priv->queue, buffer);
priv->queued_bytes += gst_buffer_get_size (buffer);
}
g_cond_broadcast (&priv->cond);