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gst/playback/gstplaybin.c: Add "connection-speed" property; re-order redirect messages with multiple redirect locatio...

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Original commit message from CVS:
* gst/playback/gstplaybin.c: (gst_play_bin_class_init),
(gst_play_bin_set_property), (gst_play_bin_get_property),
(value_list_append_structure_list),
(gst_play_bin_handle_redirect_message),
(gst_play_bin_handle_message):
Add "connection-speed" property; re-order redirect messages with
multiple redirect locations depending on the minimum bitrate if
that information is available and a connection speed is set
(#350399).
This commit is contained in:
Tim-Philipp Müller 2006-08-14 17:54:01 +00:00
parent 309d776504
commit 44bb02bceb
2 changed files with 137 additions and 5 deletions
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12
ChangeLog
View file

@ -1,3 +1,15 @@
2006-08-14 Tim-Philipp Müller <tim at centricular dot net>
* gst/playback/gstplaybin.c: (gst_play_bin_class_init),
(gst_play_bin_set_property), (gst_play_bin_get_property),
(value_list_append_structure_list),
(gst_play_bin_handle_redirect_message),
(gst_play_bin_handle_message):
Add "connection-speed" property; re-order redirect messages with
multiple redirect locations depending on the minimum bitrate if
that information is available and a connection speed is set
(#350399).
2006-08-14 Tim-Philipp Müller <tim at centricular dot net>
* gst/playback/gstplaybin.c:

130
gst/playback/gstplaybin.c
View file

@ -38,6 +38,7 @@ GST_DEBUG_CATEGORY_STATIC (gst_play_bin_debug);
#define GST_IS_PLAY_BIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PLAY_BIN))
#define VOLUME_MAX_DOUBLE 10.0
#define CONNECTION_SPEED_DEFAULT 0
typedef struct _GstPlayBin GstPlayBin;
typedef struct _GstPlayBinClass GstPlayBinClass;
@ -67,6 +68,9 @@ struct _GstPlayBin
/* font description */
gchar *font_desc;
/* connection speed in bits/sec (0 = unknown) */
guint connection_speed;
};
struct _GstPlayBinClass
@ -83,7 +87,8 @@ enum
ARG_VIS_PLUGIN,
ARG_VOLUME,
ARG_FRAME,
ARG_FONT_DESC
ARG_FONT_DESC,
ARG_CONNECTION_SPEED
};
/* signals */
@ -109,6 +114,7 @@ static gboolean gst_play_bin_send_event (GstElement * element,
GstEvent * event);
static GstStateChangeReturn gst_play_bin_change_state (GstElement * element,
GstStateChange transition);
static void gst_play_bin_handle_message (GstBin * bin, GstMessage * message);
static GstElementClass *parent_class;
@ -188,6 +194,17 @@ gst_play_bin_class_init (GstPlayBinClass * klass)
"Subtitle font description",
"Pango font description of font "
"to be used for subtitle rendering", NULL, G_PARAM_WRITABLE));
/**
* GstPlayBin:connection-speed
*
* Network connection speed in kbps (0 = unknown)
*
* Since: 0.10.10
**/
g_object_class_install_property (gobject_klass, ARG_CONNECTION_SPEED,
g_param_spec_uint ("connection-speed", "Connection Speed",
"Network connection speed in kbps (0 = unknown)",
0, G_MAXUINT, CONNECTION_SPEED_DEFAULT, G_PARAM_READWRITE));
gobject_klass->dispose = GST_DEBUG_FUNCPTR (gst_play_bin_dispose);
@ -197,6 +214,9 @@ gst_play_bin_class_init (GstPlayBinClass * klass)
GST_DEBUG_FUNCPTR (gst_play_bin_change_state);
gstelement_klass->send_event = GST_DEBUG_FUNCPTR (gst_play_bin_send_event);
gstbin_klass->handle_message =
GST_DEBUG_FUNCPTR (gst_play_bin_handle_message);
playbasebin_klass->setup_output_pads = setup_sinks;
}
@ -376,8 +396,6 @@ gst_play_bin_set_property (GObject * object, guint prop_id,
{
GstPlayBin *play_bin;
g_return_if_fail (GST_IS_PLAY_BIN (object));
play_bin = GST_PLAY_BIN (object);
switch (prop_id) {
@ -486,6 +504,9 @@ gst_play_bin_set_property (GObject * object, guint prop_id,
"font-desc", g_value_get_string (value), NULL);
}
break;
case ARG_CONNECTION_SPEED:
play_bin->connection_speed = g_value_get_uint (value) * 1000;
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -498,8 +519,6 @@ gst_play_bin_get_property (GObject * object, guint prop_id, GValue * value,
{
GstPlayBin *play_bin;
g_return_if_fail (GST_IS_PLAY_BIN (object));
play_bin = GST_PLAY_BIN (object);
switch (prop_id) {
@ -518,6 +537,9 @@ gst_play_bin_get_property (GObject * object, guint prop_id, GValue * value,
case ARG_FRAME:
gst_value_set_mini_object (value, GST_MINI_OBJECT (play_bin->frame));
break;
case ARG_CONNECTION_SPEED:
g_value_set_uint (value, play_bin->connection_speed / 1000);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -1349,6 +1371,104 @@ gst_play_bin_send_event (GstElement * element, GstEvent * event)
return res;
}
static void
value_list_append_structure_list (GValue * list_val, GstStructure ** first,
GList * structure_list)
{
GList *l;
for (l = structure_list; l != NULL; l = l->next) {
GValue val = { 0, };
if (*first == NULL)
*first = gst_structure_copy ((GstStructure *) l->data);
g_value_init (&val, GST_TYPE_STRUCTURE);
g_value_take_boxed (&val, gst_structure_copy ((GstStructure *) l->data));
gst_value_list_append_value (list_val, &val);
g_value_unset (&val);
}
}
/* if it's a redirect message with multiple redirect locations we might
* want to pick a different 'best' location depending on the required
* bitrates and the connection speed */
static GstMessage *
gst_play_bin_handle_redirect_message (GstPlayBin * playbin, GstMessage * msg)
{
const GValue *locations_list, *location_val;
GstMessage *new_msg;
GstStructure *new_structure = NULL;
GList *l_good = NULL, *l_neutral = NULL, *l_bad = NULL;
GValue new_list = { 0, };
guint size, i;
GST_DEBUG_OBJECT (playbin, "redirect message: %" GST_PTR_FORMAT, msg);
GST_DEBUG_OBJECT (playbin, "connection speed: %u", playbin->connection_speed);
if (playbin->connection_speed == 0 || msg->structure == NULL)
return msg;
locations_list = gst_structure_get_value (msg->structure, "locations");
if (locations_list == NULL)
return msg;
size = gst_value_list_get_size (locations_list);
if (size < 2)
return msg;
/* maintain existing order as much as possible, just sort references
* with too high a bitrate to the end (the assumption being that if
* bitrates are given they are given for all interesting streams and
* that the you-need-at-least-version-xyz redirect has the same bitrate
* as the lowest referenced redirect alternative) */
for (i = 0; i < size; ++i) {
const GstStructure *s;
gint bitrate = 0;
location_val = gst_value_list_get_value (locations_list, i);
s = (const GstStructure *) g_value_get_boxed (location_val);
if (!gst_structure_get_int (s, "minimum-bitrate", &bitrate) || bitrate <= 0) {
GST_DEBUG_OBJECT (playbin, "no bitrate: %" GST_PTR_FORMAT, s);
l_neutral = g_list_append (l_neutral, (gpointer) s);
} else if (bitrate > playbin->connection_speed) {
GST_DEBUG_OBJECT (playbin, "bitrate too high: %" GST_PTR_FORMAT, s);
l_bad = g_list_append (l_bad, (gpointer) s);
} else if (bitrate <= playbin->connection_speed) {
GST_DEBUG_OBJECT (playbin, "bitrate OK: %" GST_PTR_FORMAT, s);
l_good = g_list_append (l_good, (gpointer) s);
}
}
g_value_init (&new_list, GST_TYPE_LIST);
value_list_append_structure_list (&new_list, &new_structure, l_good);
value_list_append_structure_list (&new_list, &new_structure, l_neutral);
value_list_append_structure_list (&new_list, &new_structure, l_bad);
gst_structure_set_value (new_structure, "locations", &new_list);
g_value_unset (&new_list);
g_list_free (l_good);
g_list_free (l_neutral);
g_list_free (l_bad);
new_msg = gst_message_new_element (msg->src, new_structure);
gst_message_unref (msg);
GST_DEBUG_OBJECT (playbin, "new redirect message: %" GST_PTR_FORMAT, new_msg);
return new_msg;
}
static void
gst_play_bin_handle_message (GstBin * bin, GstMessage * msg)
{
if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ELEMENT && msg->structure != NULL
&& gst_structure_has_name (msg->structure, "redirect")) {
msg = gst_play_bin_handle_redirect_message (GST_PLAY_BIN (bin), msg);
}
GST_BIN_CLASS (parent_class)->handle_message (bin, msg);
}
static GstStateChangeReturn
gst_play_bin_change_state (GstElement * element, GstStateChange transition)
{