diff options
Diffstat (limited to 'gst/smpte')
-rw-r--r-- | gst/smpte/gstsmpte.c | 30 | ||||
-rw-r--r-- | gst/smpte/gstsmptealpha.c | 32 |
2 files changed, 25 insertions, 37 deletions
diff --git a/gst/smpte/gstsmpte.c b/gst/smpte/gstsmpte.c index 91f6c2f8..5a1a0871 100644 --- a/gst/smpte/gstsmpte.c +++ b/gst/smpte/gstsmpte.c @@ -19,31 +19,23 @@ /** * SECTION:element-smpte - * @short_description: Takes to video frames and applies an SMPTE transition - * effect on them. * - * <refsect2> - * <para> * smpte can accept I420 video streams with the same width, height and * framerate. The two incomming buffers are blended together using an effect * specific alpha mask. - * </para> - * <para> - * The depth property defines the presision in bits of the mask. A higher - * presision will create a mask with smoother gradients in order to avoid + * + * The #GstSmpte:depth property defines the presision in bits of the mask. A + * higher presision will create a mask with smoother gradients in order to avoid * banding. - * </para> + * + * <refsect2> * <title>Sample pipelines</title> - * <para> - * Here is a pipeline to demonstrate the smpte transition : - * <programlisting> - * gst-launch -v videotestsrc pattern=1 ! smpte name=s border=20000 type=234 - * duration=2000000000 ! ffmpegcolorspace ! ximagesink videotestsrc ! s. - * </programlisting> - * This shows a pinwheel transition a from a snow videotestsrc to an smpte + * |[ + * gst-launch -v videotestsrc pattern=1 ! smpte name=s border=20000 type=234 duration=2000000000 ! ffmpegcolorspace ! ximagesink videotestsrc ! s. + * ]| A pipeline to demonstrate the smpte transition. + * It shows a pinwheel transition a from a snow videotestsrc to an smpte * pattern videotestsrc. The transition will take 2 seconds to complete. The * edges of the transition are smoothed with a 20000 big border. - * </para> * </refsect2> */ @@ -491,8 +483,8 @@ gst_smpte_collected (GstCollectPads * pads, GstSMPTE * smpte) GstCaps *caps; caps = - gst_caps_copy (gst_static_caps_get (&gst_smpte_src_template. - static_caps)); + gst_caps_copy (gst_static_caps_get + (&gst_smpte_src_template.static_caps)); gst_caps_set_simple (caps, "width", G_TYPE_INT, smpte->width, "height", G_TYPE_INT, smpte->height, "framerate", GST_TYPE_FRACTION, smpte->fps_num, smpte->fps_denom, NULL); diff --git a/gst/smpte/gstsmptealpha.c b/gst/smpte/gstsmptealpha.c index 95c8b245..74f27ba2 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) |