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screen-cast-stream-src: Only try to record frames when streaming

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Only when the PipeWire stream state is 'PW_STREAM_STATE STREAMING'
should the signal be connected causing the src to maybe record a frame.

https://bugzilla.gnome.org/show_bug.cgi?id=784199
This commit is contained in:
Jonas Ådahl 2017-06-26 12:55:48 +08:00
parent 9d8922764c
commit 920541fa26
3 changed files with 81 additions and 43 deletions
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81
src/backends/meta-screen-cast-monitor-stream-src.c
View File

@ -93,6 +93,42 @@ meta_screen_cast_monitor_stream_src_get_specs (MetaScreenCastStreamSrc *src,
*frame_rate = meta_monitor_mode_get_refresh_rate (mode);
}
static void
stage_painted (ClutterActor *actor,
MetaScreenCastMonitorStreamSrc *monitor_src)
{
MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (monitor_src);
meta_screen_cast_stream_src_maybe_record_frame (src);
}
static void
meta_screen_cast_monitor_stream_src_enable (MetaScreenCastStreamSrc *src)
{
MetaScreenCastMonitorStreamSrc *monitor_src =
META_SCREEN_CAST_MONITOR_STREAM_SRC (src);
ClutterStage *stage;
stage = get_stage (monitor_src);
monitor_src->stage_painted_handler_id =
g_signal_connect_after (stage, "paint",
G_CALLBACK (stage_painted),
monitor_src);
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
}
static void
meta_screen_cast_monitor_stream_src_disable (MetaScreenCastStreamSrc *src)
{
MetaScreenCastMonitorStreamSrc *monitor_src =
META_SCREEN_CAST_MONITOR_STREAM_SRC (src);
ClutterStage *stage;
stage = get_stage (monitor_src);
g_signal_handler_disconnect (stage, monitor_src->stage_painted_handler_id);
monitor_src->stage_painted_handler_id = 0;
}
static void
meta_screen_cast_monitor_stream_src_record_frame (MetaScreenCastStreamSrc *src,
uint8_t *data)
@ -109,15 +145,6 @@ meta_screen_cast_monitor_stream_src_record_frame (MetaScreenCastStreamSrc *src,
clutter_stage_capture_into (stage, FALSE, &logical_monitor->rect, data);
}
static void
stage_painted (ClutterActor *actor,
MetaScreenCastMonitorStreamSrc *monitor_src)
{
MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (monitor_src);
meta_screen_cast_stream_src_maybe_record_frame (src);
}
MetaScreenCastMonitorStreamSrc *
meta_screen_cast_monitor_stream_src_new (MetaScreenCastMonitorStream *monitor_stream,
const char *stream_id,
@ -131,36 +158,6 @@ meta_screen_cast_monitor_stream_src_new (MetaScreenCastMonitorStream *monitor_s
NULL);
}
static void
meta_screen_cast_monitor_stream_src_constructed (GObject *object)
{
MetaScreenCastMonitorStreamSrc *monitor_src =
META_SCREEN_CAST_MONITOR_STREAM_SRC (object);
ClutterStage *stage;
stage = get_stage (monitor_src);
monitor_src->stage_painted_handler_id =
g_signal_connect_after (stage, "paint",
G_CALLBACK (stage_painted),
monitor_src);
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
}
static void
meta_screen_cast_monitor_stream_src_finalize (GObject *object)
{
MetaScreenCastMonitorStreamSrc *monitor_src =
META_SCREEN_CAST_MONITOR_STREAM_SRC (object);
GObjectClass *parent_class =
G_OBJECT_CLASS (meta_screen_cast_monitor_stream_src_parent_class);
ClutterStage *stage;
stage = get_stage (monitor_src);
g_signal_handler_disconnect (stage, monitor_src->stage_painted_handler_id);
parent_class->finalize (object);
}
static void
meta_screen_cast_monitor_stream_src_init (MetaScreenCastMonitorStreamSrc *monitor_src)
{
@ -169,13 +166,11 @@ meta_screen_cast_monitor_stream_src_init (MetaScreenCastMonitorStreamSrc *monito
static void
meta_screen_cast_monitor_stream_src_class_init (MetaScreenCastMonitorStreamSrcClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
MetaScreenCastStreamSrcClass *src_class =
META_SCREEN_CAST_STREAM_SRC_CLASS (klass);
object_class->constructed = meta_screen_cast_monitor_stream_src_constructed;
object_class->finalize = meta_screen_cast_monitor_stream_src_finalize;
src_class->get_specs = meta_screen_cast_monitor_stream_src_get_specs;
src_class->enable = meta_screen_cast_monitor_stream_src_enable;
src_class->disable = meta_screen_cast_monitor_stream_src_disable;
src_class->record_frame = meta_screen_cast_monitor_stream_src_record_frame;
}

41
src/backends/meta-screen-cast-stream-src.c
View File

@ -89,6 +89,8 @@ typedef struct _MetaScreenCastStreamSrcPrivate
MetaPipeWireSource *pipewire_source;
struct spa_hook pipewire_remote_listener;
gboolean is_enabled;
struct pw_stream *pipewire_stream;
struct spa_hook pipewire_stream_listener;
@ -197,6 +199,37 @@ meta_screen_cast_stream_src_maybe_record_frame (MetaScreenCastStreamSrc *src)
pw_stream_send_buffer (priv->pipewire_stream, buffer_id);
}
static gboolean
meta_screen_cast_stream_src_is_enabled (MetaScreenCastStreamSrc *src)
{
MetaScreenCastStreamSrcPrivate *priv =
meta_screen_cast_stream_src_get_instance_private (src);
return priv->is_enabled;
}
static void
meta_screen_cast_stream_src_enable (MetaScreenCastStreamSrc *src)
{
MetaScreenCastStreamSrcPrivate *priv =
meta_screen_cast_stream_src_get_instance_private (src);
META_SCREEN_CAST_STREAM_SRC_GET_CLASS (src)->enable (src);
priv->is_enabled = TRUE;
}
static void
meta_screen_cast_stream_src_disable (MetaScreenCastStreamSrc *src)
{
MetaScreenCastStreamSrcPrivate *priv =
meta_screen_cast_stream_src_get_instance_private (src);
META_SCREEN_CAST_STREAM_SRC_GET_CLASS (src)->disable (src);
priv->is_enabled = FALSE;
}
static void
meta_screen_cast_stream_src_notify_closed (MetaScreenCastStreamSrc *src)
{
@ -222,7 +255,12 @@ on_stream_state_changed (void *data,
case PW_STREAM_STATE_CONFIGURE:
case PW_STREAM_STATE_READY:
case PW_STREAM_STATE_PAUSED:
if (meta_screen_cast_stream_src_is_enabled (src))
meta_screen_cast_stream_src_disable (src);
break;
case PW_STREAM_STATE_STREAMING:
if (!meta_screen_cast_stream_src_is_enabled (src))
meta_screen_cast_stream_src_enable (src);
break;
}
}
@ -540,6 +578,9 @@ meta_screen_cast_stream_src_finalize (GObject *object)
MetaScreenCastStreamSrcPrivate *priv =
meta_screen_cast_stream_src_get_instance_private (src);
if (meta_screen_cast_stream_src_is_enabled (src))
meta_screen_cast_stream_src_disable (src);
g_clear_pointer (&priv->pipewire_stream, (GDestroyNotify) pw_stream_destroy);
pw_remote_destroy (priv->pipewire_remote);
pw_core_destroy (priv->pipewire_core);

2
src/backends/meta-screen-cast-stream-src.h
View File

@ -44,6 +44,8 @@ struct _MetaScreenCastStreamSrcClass
int *width,
int *height,
float *frame_rate);
void (* enable) (MetaScreenCastStreamSrc *src);
void (* disable) (MetaScreenCastStreamSrc *src);
void (* record_frame) (MetaScreenCastStreamSrc *src,
uint8_t *data);
};