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line21enc: add remove-caption-meta property
Similar to #GstCCExtractor:remove-caption-meta Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1554>
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parent
c07e2a89ba
commit
c58357fb66
4 changed files with 83 additions and 4 deletions
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@ -3436,7 +3436,20 @@
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"presence": "always"
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}
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},
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"properties": {},
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"properties": {
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"remove-caption-meta": {
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"blurb": "Remove encoded caption meta from outgoing video buffers",
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"conditionally-available": false,
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"construct": false,
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"construct-only": false,
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"controllable": false,
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"default": "false",
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"mutable": "null",
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"readable": true,
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"type": "gboolean",
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"writable": true
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}
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},
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"rank": "none"
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}
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},
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@ -39,6 +39,12 @@
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GST_DEBUG_CATEGORY_STATIC (gst_line_21_encoder_debug);
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#define GST_CAT_DEFAULT gst_line_21_encoder_debug
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enum
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{
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PROP_0,
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PROP_REMOVE_CAPTION_META,
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};
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/* FIXME: add and test support for PAL resolutions */
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#define CAPS "video/x-raw, format={ I420, YUY2, YVYU, UYVY, VYUY }, width=(int)720, height=(int){ 525, 486 }, interlace-mode=interleaved"
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@ -60,16 +66,41 @@ static gboolean gst_line_21_encoder_set_info (GstVideoFilter * filter,
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GstCaps * outcaps, GstVideoInfo * out_info);
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static GstFlowReturn gst_line_21_encoder_transform_ip (GstVideoFilter * filter,
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GstVideoFrame * frame);
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static void gst_line_21_encoder_set_property (GObject * self, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_line_21_encoder_get_property (GObject * self, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void
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gst_line_21_encoder_class_init (GstLine21EncoderClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstVideoFilterClass *filter_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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filter_class = (GstVideoFilterClass *) klass;
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gobject_class->set_property = gst_line_21_encoder_set_property;
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gobject_class->get_property = gst_line_21_encoder_get_property;
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/**
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* line21encoder:remove-caption-meta
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*
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* Selects whether the encoded #GstVideoCaptionMeta should be removed from
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* the outgoing video buffers or whether it should be kept.
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*
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* Since: 1.20
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*/
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g_object_class_install_property (G_OBJECT_CLASS (klass),
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PROP_REMOVE_CAPTION_META, g_param_spec_boolean ("remove-caption-meta",
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"Remove Caption Meta",
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"Remove encoded caption meta from outgoing video buffers", FALSE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gst_element_class_set_static_metadata (gstelement_class,
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"Line 21 CC Encoder",
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"Filter/Video/ClosedCaption",
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@ -92,6 +123,38 @@ gst_line_21_encoder_init (GstLine21Encoder * filter)
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{
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}
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static void
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gst_line_21_encoder_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstLine21Encoder *enc = GST_LINE21ENCODER (object);
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switch (prop_id) {
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case PROP_REMOVE_CAPTION_META:
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enc->remove_caption_meta = g_value_get_boolean (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_line_21_encoder_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstLine21Encoder *enc = GST_LINE21ENCODER (object);
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switch (prop_id) {
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case PROP_REMOVE_CAPTION_META:
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g_value_set_boolean (value, enc->remove_caption_meta);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static vbi_pixfmt
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vbi_pixfmt_from_gst_video_format (GstVideoFormat format)
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{
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@ -445,8 +508,8 @@ gst_line_21_encoder_transform_ip (GstVideoFilter * filter,
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}
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}
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/* We've encoded this meta, it can now be removed */
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if (cc_meta)
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/* We've encoded this meta, it can now be removed if required */
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if (cc_meta && self->remove_caption_meta)
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gst_buffer_remove_meta (frame->buffer, (GstMeta *) cc_meta);
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/* When dealing with standard NTSC resolution, field 1 goes at line 21,
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@ -48,6 +48,8 @@ struct _GstLine21Encoder
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vbi_sampling_par sp;
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GstVideoInfo info;
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gboolean remove_caption_meta;
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};
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struct _GstLine21EncoderClass
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@ -42,7 +42,8 @@ GST_START_TEST (basic)
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"interlace-mode", G_TYPE_STRING, "interleaved",
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NULL);
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h = gst_harness_new_parse ("line21encoder ! line21decoder");
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h = gst_harness_new_parse
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("line21encoder remove-caption-meta=true ! line21decoder");
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gst_harness_set_caps (h, gst_caps_ref (caps), gst_caps_ref (caps));
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gst_video_info_from_caps (&info, caps);
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