diff options
Diffstat (limited to 'gst/smpte/gstsmptealpha.c')
| -rw-r--r-- | gst/smpte/gstsmptealpha.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/gst/smpte/gstsmptealpha.c b/gst/smpte/gstsmptealpha.c index 95c8b2458..74f27ba29 100644 --- a/gst/smpte/gstsmptealpha.c +++ b/gst/smpte/gstsmptealpha.c @@ -19,26 +19,21 @@ /** * SECTION:element-smptealpha - * @short_description: Takes a video frames and applies an SMPTE transition - * effect on it in the alpha channel. * - * <refsect2> - * <para> * smptealpha can accept an I420 or AYUV video stream. An alpha channel is added - * using an effect specific SMPTE mask in the I420 input case. In the AYUV case, the - * alpha channel is modified using the effect specific SMPTE mask. - * </para> - * <para> - * The "position" property is a controllabe double between 0.0 and 1.0 that - * specifies the position in the transition. 0.0 is the start of the transition - * with the alpha channel to complete opaque where 1.0 has the alpha channel set - * to completely transparent. - * </para> - * <para> - * The depth property defines the precision in bits of the mask. A higher - * presision will create a mask with smoother gradients in order to avoid - * banding. - * </para> + * using an effect specific SMPTE mask in the I420 input case. In the AYUV case, + * the alpha channel is modified using the effect specific SMPTE mask. + * + * The #GstSmpteAlpha:position property is a controllabe double between 0.0 and + * 1.0 that specifies the position in the transition. 0.0 is the start of the + * transition with the alpha channel to complete opaque where 1.0 has the alpha + * channel set to completely transparent. + * + * The #GstSmpteAlpha:depth property defines the precision in bits of the mask. + * A higher presision will create a mask with smoother gradients in order to + * avoid banding. + * + * <refsect2> * <title>Sample pipelines</title> * <para> * Here is a pipeline to demonstrate the smpte transition : @@ -432,6 +427,7 @@ gst_smpte_alpha_do_ayuv (GstSMPTEAlpha * smpte, guint8 * in, guint8 * out, } } } + static void gst_smpte_alpha_do_i420 (GstSMPTEAlpha * smpte, guint8 * in, guint8 * out, GstMask * mask, gint width, gint height, gint border, gint pos) |