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hlssink: add a playlist-length property

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Probably not particularly useful in general, but handy
to cut down the latency on a stream.

https://bugzilla.gnome.org/show_bug.cgi?id=687133
This commit is contained in:
Will Thompson 2012-09-28 12:36:55 -04:00 committed by Tim-Philipp Müller
parent 40325be3a4
commit b4bf05b32e
2 changed files with 19 additions and 2 deletions
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20
gst/hls/gsthlssink.c
View file

@ -37,6 +37,7 @@ GST_DEBUG_CATEGORY_STATIC (gst_hls_sink_debug);
#define DEFAULT_PLAYLIST_ROOT NULL
#define DEFAULT_MAX_FILES 10
#define DEFAULT_TARGET_DURATION 15
#define DEFAULT_PLAYLIST_LENGTH 5
enum
{
@ -45,7 +46,8 @@ enum
PROP_PLAYLIST_LOCATION,
PROP_PLAYLIST_ROOT,
PROP_MAX_FILES,
PROP_TARGET_DURATION
PROP_TARGET_DURATION,
PROP_PLAYLIST_LENGTH
};
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
@ -149,6 +151,12 @@ gst_hls_sink_class_init (GstHlsSinkClass * klass)
"streaming server)",
0, G_MAXUINT, DEFAULT_TARGET_DURATION,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_PLAYLIST_LENGTH,
g_param_spec_uint ("playlist-length", "Playlist length",
"Length of HLS playlist. To allow players to conform to section 6.3.3 "
"of the HLS specification, this should be at least 3.",
1, G_MAXUINT, DEFAULT_PLAYLIST_LENGTH,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
@ -158,7 +166,7 @@ gst_hls_sink_reset (GstHlsSink * sink)
sink->multifilesink = NULL;
sink->last_stream_time = 0;
sink->playlist = gst_m3u8_playlist_new (6, 5, FALSE);
sink->playlist = gst_m3u8_playlist_new (6, sink->playlist_length, FALSE);
}
static void
@ -174,6 +182,7 @@ gst_hls_sink_init (GstHlsSink * sink, GstHlsSinkClass * sink_class)
sink->location = g_strdup (DEFAULT_LOCATION);
sink->playlist_location = g_strdup (DEFAULT_PLAYLIST_LOCATION);
sink->playlist_root = g_strdup (DEFAULT_PLAYLIST_ROOT);
sink->playlist_length = DEFAULT_PLAYLIST_LENGTH;
sink->max_files = DEFAULT_MAX_FILES;
sink->target_duration = DEFAULT_TARGET_DURATION;
sink->count = 0;
@ -368,6 +377,10 @@ gst_hls_sink_set_property (GObject * object, guint prop_id,
case PROP_TARGET_DURATION:
sink->target_duration = g_value_get_uint (value);
break;
case PROP_PLAYLIST_LENGTH:
sink->playlist_length = g_value_get_uint (value);
sink->playlist->window_size = sink->playlist_length;
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -396,6 +409,9 @@ gst_hls_sink_get_property (GObject * object, guint prop_id,
case PROP_TARGET_DURATION:
g_value_set_uint (value, sink->target_duration);
break;
case PROP_PLAYLIST_LENGTH:
g_value_set_uint (value, sink->playlist_length);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;

1
gst/hls/gsthlssink.h
View file

@ -47,6 +47,7 @@ struct _GstHlsSink
gchar *location;
gchar *playlist_location;
gchar *playlist_root;
guint playlist_length;
GstM3U8Playlist *playlist;
guint index;
gint max_files;