mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 10:11:08 +00:00
videomixer: make videomixer work somewhat
This commit is contained in:
Wim Taymans
parent
df260a2ec6
commit
85a96b3703
1 changed files with 36 additions and 28 deletions
|
|
@ -19,7 +19,7 @@
|
|||
*/
|
||||
|
||||
/**
|
||||
* SECTION:element-videomixer2
|
||||
* SECTION:element-videomixer
|
||||
*
|
||||
* Videomixer2 can accept AYUV, ARGB and BGRA video streams. For each of the requested
|
||||
* sink pads it will compare the incoming geometry and framerate to define the
|
||||
|
|
@ -33,21 +33,17 @@
|
|||
* Individual parameters for each input stream can be configured on the
|
||||
* #GstVideoMixer2Pad.
|
||||
*
|
||||
* At this stage, videomixer2 is considered UNSTABLE. The API provided in the
|
||||
* properties may yet change in the near future. When videomixer2 is stable,
|
||||
* it will replace #videomixer
|
||||
*
|
||||
* <refsect2>
|
||||
* <title>Sample pipelines</title>
|
||||
* |[
|
||||
* gst-launch-0.10 \
|
||||
* gst-launch-0.11 \
|
||||
* videotestsrc pattern=1 ! \
|
||||
* video/x-raw-yuv,format=\(fourcc\)AYUV,framerate=\(fraction\)10/1,width=100,height=100 ! \
|
||||
* video/x-raw,format=AYUV,framerate=\(fraction\)10/1,width=100,height=100 ! \
|
||||
* videobox border-alpha=0 top=-70 bottom=-70 right=-220 ! \
|
||||
* videomixer2 name=mix sink_0::alpha=0.7 sink_1::alpha=0.5 ! \
|
||||
* ffmpegcolorspace ! xvimagesink \
|
||||
* videomixer name=mix sink_0::alpha=0.7 sink_1::alpha=0.5 ! \
|
||||
* videoconvert ! xvimagesink \
|
||||
* videotestsrc ! \
|
||||
* video/x-raw-yuv,format=\(fourcc\)AYUV,framerate=\(fraction\)5/1,width=320,height=240 ! mix.
|
||||
* video/x-raw,format=AYUV,framerate=\(fraction\)5/1,width=320,height=240 ! mix.
|
||||
* ]| A pipeline to demonstrate videomixer used together with videobox.
|
||||
* This should show a 320x240 pixels video test source with some transparency
|
||||
* showing the background checker pattern. Another video test source with just
|
||||
|
|
@ -56,27 +52,27 @@
|
|||
* video test source behind and the checker pattern under it. Note that the
|
||||
* framerate of the output video is 10 frames per second.
|
||||
* |[
|
||||
* gst-launch videotestsrc pattern=1 ! \
|
||||
* video/x-raw-rgb, framerate=\(fraction\)10/1, width=100, height=100 ! \
|
||||
* videomixer2 name=mix ! ffmpegcolorspace ! ximagesink \
|
||||
* gst-launch-0.11 videotestsrc pattern=1 ! \
|
||||
* video/x-raw, framerate=\(fraction\)10/1, width=100, height=100 ! \
|
||||
* videomixer name=mix ! videoconvert ! ximagesink \
|
||||
* videotestsrc ! \
|
||||
* video/x-raw-rgb, framerate=\(fraction\)5/1, width=320, height=240 ! mix.
|
||||
* video/x-raw, framerate=\(fraction\)5/1, width=320, height=240 ! mix.
|
||||
* ]| A pipeline to demostrate bgra mixing. (This does not demonstrate alpha blending).
|
||||
* |[
|
||||
* gst-launch videotestsrc pattern=1 ! \
|
||||
* video/x-raw-yuv,format =\(fourcc\)I420, framerate=\(fraction\)10/1, width=100, height=100 ! \
|
||||
* videomixer2 name=mix ! ffmpegcolorspace ! ximagesink \
|
||||
* gst-launch-0.11 videotestsrc pattern=1 ! \
|
||||
* video/x-raw,format =I420, framerate=\(fraction\)10/1, width=100, height=100 ! \
|
||||
* videomixer name=mix ! videoconvert ! ximagesink \
|
||||
* videotestsrc ! \
|
||||
* video/x-raw-yuv,format=\(fourcc\)I420, framerate=\(fraction\)5/1, width=320, height=240 ! mix.
|
||||
* video/x-raw,format=I420, framerate=\(fraction\)5/1, width=320, height=240 ! mix.
|
||||
* ]| A pipeline to test I420
|
||||
* |[
|
||||
* gst-launch videomixer2 name=mixer sink_1::alpha=0.5 sink_1::xpos=50 sink_1::ypos=50 ! \
|
||||
* ffmpegcolorspace ! ximagesink \
|
||||
* gst-launch-0.11 videomixer name=mixer sink_1::alpha=0.5 sink_1::xpos=50 sink_1::ypos=50 ! \
|
||||
* videoconvert ! ximagesink \
|
||||
* videotestsrc pattern=snow timestamp-offset=3000000000 ! \
|
||||
* "video/x-raw-yuv,format=(fourcc)AYUV,width=640,height=480,framerate=(fraction)30/1" ! \
|
||||
* "video/x-raw,format=AYUV,width=640,height=480,framerate=(fraction)30/1" ! \
|
||||
* timeoverlay ! queue2 ! mixer. \
|
||||
* videotestsrc pattern=smpte ! \
|
||||
* "video/x-raw-yuv,format=(fourcc)AYUV,width=800,height=600,framerate=(fraction)10/1" ! \
|
||||
* "video/x-raw,format=AYUV,width=800,height=600,framerate=(fraction)10/1" ! \
|
||||
* timeoverlay ! queue2 ! mixer.
|
||||
* ]| A pipeline to demonstrate synchronized mixing (the second stream starts after 3 seconds)
|
||||
* </refsect2>
|
||||
|
|
@ -254,6 +250,7 @@ gst_videomixer2_update_src_caps (GstVideoMixer2 * mix)
|
|||
gst_caps_unref (peercaps);
|
||||
caps = tmp;
|
||||
if (gst_caps_is_empty (caps)) {
|
||||
GST_DEBUG_OBJECT (mix, "empty caps");
|
||||
ret = FALSE;
|
||||
GST_VIDEO_MIXER2_UNLOCK (mix);
|
||||
goto done;
|
||||
|
|
@ -299,7 +296,7 @@ gst_videomixer2_pad_sink_setcaps (GstPad * pad, GstObject * parent,
|
|||
mix = GST_VIDEO_MIXER2 (parent);
|
||||
mixpad = GST_VIDEO_MIXER2_PAD (pad);
|
||||
|
||||
if (gst_video_info_from_caps (&info, caps)) {
|
||||
if (!gst_video_info_from_caps (&info, caps)) {
|
||||
GST_ERROR_OBJECT (pad, "Failed to parse caps");
|
||||
goto beach;
|
||||
}
|
||||
|
|
@ -1660,6 +1657,17 @@ gst_videomixer2_sink_event (GstCollectPads2 * pads, GstCollectData2 * cdata,
|
|||
|
||||
/* return FALSE => event will be forwarded */
|
||||
switch (GST_EVENT_TYPE (event)) {
|
||||
case GST_EVENT_CAPS:
|
||||
{
|
||||
GstCaps *caps;
|
||||
|
||||
gst_event_parse_caps (event, &caps);
|
||||
ret =
|
||||
gst_videomixer2_pad_sink_setcaps (GST_PAD (pad), GST_OBJECT (mix),
|
||||
caps);
|
||||
gst_event_unref (event);
|
||||
break;
|
||||
}
|
||||
case GST_EVENT_SEGMENT:{
|
||||
GstSegment seg;
|
||||
gst_event_copy_segment (event, &seg);
|
||||
|
|
@ -1683,23 +1691,24 @@ gst_videomixer2_sink_event (GstCollectPads2 * pads, GstCollectData2 * cdata,
|
|||
mix->ts_offset = 0;
|
||||
mix->nframes = 0;
|
||||
|
||||
ret = gst_pad_event_default (cdata->pad, GST_OBJECT (mix), event);
|
||||
break;
|
||||
default:
|
||||
ret = gst_pad_event_default (cdata->pad, GST_OBJECT (mix), event);
|
||||
break;
|
||||
case GST_EVENT_EOS:
|
||||
gst_event_unref (event);
|
||||
ret = TRUE;
|
||||
break;
|
||||
default:
|
||||
ret = gst_pad_event_default (cdata->pad, GST_OBJECT (mix), event);
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
forward_event_func (GstPad * pad, GValue * ret, GstEvent * event)
|
||||
forward_event_func (GValue * item, GValue * ret, GstEvent * event)
|
||||
{
|
||||
GstPad *pad = g_value_get_object (item);
|
||||
gst_event_ref (event);
|
||||
GST_LOG_OBJECT (pad, "About to send event %s", GST_EVENT_TYPE_NAME (event));
|
||||
if (!gst_pad_push_event (pad, event)) {
|
||||
|
|
@ -1710,7 +1719,6 @@ forward_event_func (GstPad * pad, GValue * ret, GstEvent * event)
|
|||
GST_LOG_OBJECT (pad, "Sent event %p (%s).",
|
||||
event, GST_EVENT_TYPE_NAME (event));
|
||||
}
|
||||
gst_object_unref (pad);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue