#### `alpha` alpha of the stream Value type: #gdouble #### `background-color` Background color to use (big-endian ARGB) Value type: #guint See #videotestsrc:background-color #### `fheight` height of the source in float Value type: #gfloat #### `font-desc` Pango font description of font to be used for rendering. See documentation of pango_font_description_from_string for syntax. Value type: #gchararray See #GstBaseTextOverlay:font-desc #### `foreground-color` Foreground color to use (big-endian ARGB) Value type: #guint See #videotestsrc:foreground-color #### `fposx` x position of the stream in float Value type: #gfloat #### `fposy` y position of the stream in float Value type: #gfloat #### `freq` Frequency of test signal. The sample rate needs to be at least 2 times higher. Value type: #gdouble See #audiotestsrc:freq #### `fwidth` width of the source in float Value type: #gfloat #### `halignment` Horizontal alignment of the text Valid values: - **left** (0) – left - **center** (1) – center - **right** (2) – right - **position** (4) – Absolute position clamped to canvas - **absolute** (5) – Absolute position See #GstBaseTextOverlay:halignment #### `height` height of the source Value type: #gint #### `input-channels-reorder` The positions configuration to use to reorder the input channels consecutively according to their index. Valid values: - **Reorder the input channels using the default GStreamer order** (0) – gst - **Reorder the input channels using the SMPTE order** (1) – smpte - **Reorder the input channels using the CINE order** (2) – cine - **Reorder the input channels using the AC3 order** (3) – ac3 - **Reorder the input channels using the AAC order** (4) – aac - **Reorder and mix all input channels to a single mono channel** (5) – mono - **Reorder and mix all input channels to a single left and a single right stereo channels alternately** (6) – alternate See #audioconvert:input-channels-reorder #### `input-channels-reorder-mode` The input channels reordering mode used to apply the selected positions configuration. Valid values: - **Never reorder the input channels** (0) – none - **Reorder the input channels only if they are unpositioned** (1) – unpositioned - **Always reorder the input channels according to the selected configuration** (2) – force See #audioconvert:input-channels-reorder-mode #### `mix-matrix` Transformation matrix for input/output channels. Value type: #GstValueArray See #audioconvert:mix-matrix #### `mute` mute channel Value type: #gboolean See #volume:mute #### `operator` Blending operator to use for blending this pad over the previous ones Valid values: - **Source** (0) – source - **Over** (1) – over - **Add** (2) – add #### `pattern` Type of test pattern to generate Valid values: - **SMPTE 100% color bars** (0) – smpte - **Random (television snow)** (1) – snow - **100% Black** (2) – black - **100% White** (3) – white - **Red** (4) – red - **Green** (5) – green - **Blue** (6) – blue - **Checkers 1px** (7) – checkers-1 - **Checkers 2px** (8) – checkers-2 - **Checkers 4px** (9) – checkers-4 - **Checkers 8px** (10) – checkers-8 - **Circular** (11) – circular - **Blink** (12) – blink - **SMPTE 75% color bars** (13) – smpte75 - **Zone plate** (14) – zone-plate - **Gamut checkers** (15) – gamut - **Chroma zone plate** (16) – chroma-zone-plate - **Solid color** (17) – solid-color - **Moving ball** (18) – ball - **SMPTE 100% color bars** (19) – smpte100 - **Bar** (20) – bar - **Pinwheel** (21) – pinwheel - **Spokes** (22) – spokes - **Gradient** (23) – gradient - **Colors** (24) – colors - **SMPTE test pattern, RP 219 conformant** (25) – smpte-rp-219 See #videotestsrc:pattern #### `posx` x position of the stream Value type: #gint #### `posy` y position of the stream Value type: #gint #### `reverse` Whether to playback the source reverse or not Value type: #gboolean See #nlesource:reverse #### `reverse` Whether to playback the source reverse or not Value type: #gboolean See #nlesource:reverse #### `text-width` Resulting width of font rendering Value type: #guint See #GstBaseTextOverlay:text-width #### `text-x` Resulting X position of font rendering. Value type: #gint See #GstBaseTextOverlay:text-x #### `text-y` Resulting Y position of font rendering. Value type: #gint See #GstBaseTextOverlay:text-y #### `time-mode` What time to show Valid values: - **buffer-time** (0) – buffer-time - **stream-time** (1) – stream-time - **running-time** (2) – running-time - **time-code** (3) – time-code - **elapsed-running-time** (4) – elapsed-running-time - **reference-timestamp** (5) – reference-timestamp - **buffer-count** (6) – buffer-count - **buffer-offset** (7) – buffer-offset See #timeoverlay:time-mode #### `valignment` Vertical alignment of the text Valid values: - **baseline** (0) – baseline - **bottom** (1) – bottom - **top** (2) – top - **position** (3) – Absolute position clamped to canvas - **center** (4) – center - **absolute** (5) – Absolute position See #GstBaseTextOverlay:valignment #### `video-direction` Video direction: rotation and flipping Valid values: - **GST_VIDEO_ORIENTATION_IDENTITY** (0) – identity - **GST_VIDEO_ORIENTATION_90R** (1) – 90r - **GST_VIDEO_ORIENTATION_180** (2) – 180 - **GST_VIDEO_ORIENTATION_90L** (3) – 90l - **GST_VIDEO_ORIENTATION_HORIZ** (4) – horiz - **GST_VIDEO_ORIENTATION_VERT** (5) – vert - **GST_VIDEO_ORIENTATION_UL_LR** (6) – ul-lr - **GST_VIDEO_ORIENTATION_UR_LL** (7) – ur-ll - **GST_VIDEO_ORIENTATION_AUTO** (8) – auto - **GST_VIDEO_ORIENTATION_CUSTOM** (9) – custom See #GstVideoDirection:video-direction #### `volume` Volume of test signal Value type: #gdouble See #audiotestsrc:volume #### `volume` volume factor, 1.0=100% Value type: #gdouble See #volume:volume #### `width` width of the source Value type: #gint #### `zorder` z order of the stream. **WARNING**: Setting it manually overrides the #GESLayer:priority and should be used very carefully Value type: #guint