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player: API additions for subtitle-video-offset property

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This new property contols the synchronisation offset between subtitles and video
in nanoseconds.

https://bugzilla.gnome.org/show_bug.cgi?id=797134
This commit is contained in:
Philippe Normand 2018-10-28 14:48:35 +00:00
parent 2e6e4cce0b
commit de26abc88a
3 changed files with 63 additions and 0 deletions
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3
docs/libs/gst-plugins-bad-libs-sections.txt
View file

@ -863,6 +863,9 @@ gst_player_set_multiview_flags
gst_player_get_audio_video_offset
gst_player_set_audio_video_offset
gst_player_get_text_video_offset
gst_player_set_text_video_offset
gst_player_get_rate
gst_player_set_rate

53
gst-libs/gst/player/gstplayer.c
View file

@ -67,6 +67,7 @@ GST_DEBUG_CATEGORY_STATIC (gst_player_debug);
#define DEFAULT_RATE 1.0
#define DEFAULT_POSITION_UPDATE_INTERVAL_MS 100
#define DEFAULT_AUDIO_VIDEO_OFFSET 0
#define DEFAULT_SUBTITLE_VIDEO_OFFSET 0
GQuark
gst_player_error_quark (void)
@ -116,6 +117,7 @@ enum
PROP_VIDEO_MULTIVIEW_MODE,
PROP_VIDEO_MULTIVIEW_FLAGS,
PROP_AUDIO_VIDEO_OFFSET,
PROP_SUBTITLE_VIDEO_OFFSET,
PROP_LAST
};
@ -412,6 +414,11 @@ gst_player_class_init (GstPlayerClass * klass)
"The synchronisation offset between audio and video in nanoseconds",
G_MININT64, G_MAXINT64, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
param_specs[PROP_SUBTITLE_VIDEO_OFFSET] =
g_param_spec_int64 ("subtitle-video-offset", "Text Video Offset",
"The synchronisation offset between text and video in nanoseconds",
G_MININT64, G_MAXINT64, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (gobject_class, PROP_LAST, param_specs);
signals[SIGNAL_URI_LOADED] =
@ -734,6 +741,9 @@ gst_player_set_property (GObject * object, guint prop_id,
case PROP_AUDIO_VIDEO_OFFSET:
g_object_set_property (G_OBJECT (self->playbin), "av-offset", value);
break;
case PROP_SUBTITLE_VIDEO_OFFSET:
g_object_set_property (G_OBJECT (self->playbin), "text-offset", value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -831,6 +841,9 @@ gst_player_get_property (GObject * object, guint prop_id,
case PROP_AUDIO_VIDEO_OFFSET:
g_object_get_property (G_OBJECT (self->playbin), "av-offset", value);
break;
case PROP_SUBTITLE_VIDEO_OFFSET:
g_object_get_property (G_OBJECT (self->playbin), "text-offset", value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -4345,6 +4358,46 @@ gst_player_set_audio_video_offset (GstPlayer * self, gint64 offset)
g_object_set (self, "audio-video-offset", offset, NULL);
}
/**
* gst_player_get_subtitle_video_offset:
* @player: #GstPlayer instance
*
* Retrieve the current value of subtitle-video-offset property
*
* Returns: The current value of subtitle-video-offset in nanoseconds
*
* Since 1.16
*/
gint64
gst_player_get_subtitle_video_offset (GstPlayer * self)
{
gint64 val = 0;
g_return_val_if_fail (GST_IS_PLAYER (self), DEFAULT_SUBTITLE_VIDEO_OFFSET);
g_object_get (self, "subtitle-video-offset", &val, NULL);
return val;
}
/**
* gst_player_set_subtitle_video_offset:
* @player: #GstPlayer instance
* @offset: #gint64 in nanoseconds
*
* Sets subtitle-video-offset property by value of @offset
*
* Since 1.16
*/
void
gst_player_set_subtitle_video_offset (GstPlayer * self, gint64 offset)
{
g_return_if_fail (GST_IS_PLAYER (self));
g_object_set (self, "subtitle-video-offset", offset, NULL);
}
#define C_ENUM(v) ((gint) v)
#define C_FLAGS(v) ((guint) v)

7
gst-libs/gst/player/gstplayer.h
View file

@ -249,6 +249,13 @@ GST_PLAYER_API
void gst_player_set_audio_video_offset (GstPlayer * player,
gint64 offset);
GST_PLAYER_API
gint64 gst_player_get_subtitle_video_offset (GstPlayer * player);
GST_PLAYER_API
void gst_player_set_subtitle_video_offset (GstPlayer * player,
gint64 offset);
GST_PLAYER_API
gboolean gst_player_set_config (GstPlayer * player,
GstStructure * config);