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hlsdemux: Add a connection-speed property

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Conflicts:

	gst/hls/gsthlsdemux.c
This commit is contained in:
Thibault Saunier 2012-05-10 10:11:18 -04:00
parent a8afa9755e
commit 52265cce1e
2 changed files with 35 additions and 5 deletions
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35
gst/hls/gsthlsdemux.c
View file

@ -68,6 +68,7 @@ enum
PROP_FRAGMENTS_CACHE,
PROP_BITRATE_LIMIT,
PROP_CONNECTION_SPEED,
PROP_LAST
};
@ -76,6 +77,7 @@ static const float update_interval_factor[] = { 1, 0.5, 1.5, 3 };
#define DEFAULT_FRAGMENTS_CACHE 3
#define DEFAULT_FAILED_COUNT 3
#define DEFAULT_BITRATE_LIMIT 0.8
#define DEFAULT_CONNECTION_SPEED 0
/* GObject */
static void gst_hls_demux_set_property (GObject * object, guint prop_id,
@ -181,6 +183,12 @@ gst_hls_demux_class_init (GstHLSDemuxClass * klass)
0, 1, DEFAULT_BITRATE_LIMIT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_CONNECTION_SPEED,
g_param_spec_uint ("connection-speed", "Connection Speed",
"Network connection speed in kbps (0 = unknown)",
0, G_MAXUINT / 1000, DEFAULT_CONNECTION_SPEED,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
element_class->change_state = GST_DEBUG_FUNCPTR (gst_hls_demux_change_state);
gst_element_class_add_pad_template (element_class,
@ -219,6 +227,7 @@ gst_hls_demux_init (GstHLSDemux * demux)
/* Properties */
demux->fragments_cache = DEFAULT_FRAGMENTS_CACHE;
demux->bitrate_limit = DEFAULT_BITRATE_LIMIT;
demux->connection_speed = DEFAULT_CONNECTION_SPEED;
demux->queue = g_queue_new ();
@ -249,6 +258,9 @@ gst_hls_demux_set_property (GObject * object, guint prop_id,
case PROP_BITRATE_LIMIT:
demux->bitrate_limit = g_value_get_float (value);
break;
case PROP_CONNECTION_SPEED:
demux->connection_speed = g_value_get_uint (value) * 1000;
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -268,6 +280,9 @@ gst_hls_demux_get_property (GObject * object, guint prop_id, GValue * value,
case PROP_BITRATE_LIMIT:
g_value_set_float (value, demux->bitrate_limit);
break;
case PROP_CONNECTION_SPEED:
g_value_set_uint (value, demux->connection_speed / 1000);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -854,9 +869,18 @@ gst_hls_demux_cache_fragments (GstHLSDemux * demux)
if (gst_m3u8_client_has_variant_playlist (demux->client)) {
GstM3U8 *child = NULL;
GST_M3U8_CLIENT_LOCK (demux->client);
child = demux->client->main->current_variant->data;
GST_M3U8_CLIENT_UNLOCK (demux->client);
if (demux->connection_speed == 0) {
GST_M3U8_CLIENT_LOCK (demux->client);
child = demux->client->main->current_variant->data;
GST_M3U8_CLIENT_UNLOCK (demux->client);
} else {
GList *tmp = gst_m3u8_client_get_playlist_for_bitrate (demux->client,
demux->connection_speed);
child = GST_M3U8 (tmp->data);
}
gst_m3u8_client_set_current (demux->client, child);
if (!gst_hls_demux_update_playlist (demux, FALSE)) {
GST_ERROR_OBJECT (demux, "Could not fetch the child playlist %s",
@ -985,6 +1009,11 @@ gst_hls_demux_change_playlist (GstHLSDemux * demux, guint max_bitrate)
GList *previous_variant, *current_variant;
gint old_bandwidth, new_bandwidth;
/* If user specifies a connection speed never use a playlist with a bandwidth
* superior than it */
if (demux->connection_speed != 0 && max_bitrate > demux->connection_speed)
max_bitrate = demux->connection_speed;
previous_variant = demux->client->main->current_variant;
current_variant = gst_m3u8_client_get_playlist_for_bitrate (demux->client,
max_bitrate);

5
gst/hls/gsthlsdemux.h
View file

@ -65,11 +65,12 @@ struct _GstHLSDemux
GQueue *queue; /* Queue storing the fetched fragments */
gboolean need_cache; /* Wheter we need to cache some fragments before starting to push data */
gboolean end_of_playlist;
gboolean do_typefind; /* Whether we need to typefind the next buffer */
gboolean do_typefind; /* Whether we need to typefind the next buffer */
/* Properties */
guint fragments_cache; /* number of fragments needed to be cached to start playing */
gfloat bitrate_limit; /* limit of the available bitrate to use */
gfloat bitrate_limit; /* limit of the available bitrate to use */
guint connection_speed; /* Network connection speed in kbps (0 = unknown) */
/* Streaming task */
GstTask *stream_task;