glstereomix
Combine 2 input streams to produce a stereoscopic output stream. Input views are taken from the left pad and right pad respectively, and mixed according to their timelines.
If either input stream is stereoscopic, the approproriate view (left or right) is taken from each stream and placed into the output.
The multiview representation on the output is chosen according to the downstream caps.
Examples
gst-launch-1.0 -v videotestsrc pattern=ball name=left \
videotestsrc name=right glstereomix name=mix \
left. ! video/x-raw,width=640,height=480! glupload ! mix. \
right. ! video/x-raw,width=640,height=480! glupload ! mix. \
mix. ! video/x-raw'(memory:GLMemory)',multiview-mode=side-by-side ! \
queue ! glimagesink output-multiview-mode=side-by-side
Mix 2 different videotestsrc patterns into a side-by-side stereo image and display it.
gst-launch-1.0 -ev v4l2src name=left \
videotestsrc name=right \
glstereomix name=mix \
left. ! video/x-raw,width=640,height=480 ! glupload ! glcolorconvert ! mix. \
right. ! video/x-raw,width=640,height=480 ! glupload ! mix. \
mix. ! video/x-raw'(memory:GLMemory)',multiview-mode=top-bottom ! \
glcolorconvert ! gldownload ! queue ! x264enc ! h264parse ! \
mp4mux ! progressreport ! filesink location=output.mp4
Mix the input from a camera to the left view, and videotestsrc to the right view, and encode as a top-bottom frame packed H.264 video.
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstAggregator ╰──GstVideoAggregator ╰──GstGLBaseMixer ╰──GstGLMixer ╰──glstereomix
Implemented interfaces
Factory details
Authors: – Jan Schmidt
Classification: – Filter/Effect/Video
Rank – none
Plugin – opengl
Package – GStreamer Base Plug-ins
Pad Templates
sink_%u
video/x-raw(memory:GLMemory):
format: RGBA
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
texture-target: 2D
video/x-raw(meta:GstVideoGLTextureUploadMeta):
format: RGBA
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
video/x-raw:
format: { RGBA, RGB, RGBx, BGR, BGRx, BGRA, xRGB, xBGR, ARGB, ABGR, GBRA, GBR, RGBP, BGRP, Y444, I420, YV12, Y42B, Y41B, NV12, NV21, NV16, NV61, YUY2, UYVY, Y210, AYUV, VUYA, Y410, A444, A422, GRAY8, GRAY16_LE, GRAY16_BE, RGB16, BGR16, ARGB64, A420, AV12, NV12_16L32S, NV12_4L4, RBGA, v210, RGBA64_LE, BGR10A2_LE, RGB10A2_LE, P010_10LE, P012_LE, P016_LE, Y212_LE, Y412_LE, A444_16LE, A422_16LE, A420_16LE, A444_12LE, A422_12LE, A420_12LE, A420_10LE, A422_10LE, A444_10LE, I420_12LE, I420_10LE }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
src
video/x-raw(memory:GLMemory):
format: RGBA
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
texture-target: 2D
video/x-raw(meta:GstVideoGLTextureUploadMeta):
format: RGBA
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
video/x-raw:
format: { RGBA, RGB, RGBx, BGR, BGRx, BGRA, xRGB, xBGR, ARGB, ABGR, GBRA, GBR, RGBP, BGRP, Y444, I420, YV12, Y42B, Y41B, NV12, NV21, NV16, NV61, YUY2, UYVY, Y210, AYUV, VUYA, Y410, A444, A422, GRAY8, GRAY16_LE, GRAY16_BE, RGB16, BGR16, ARGB64, A420, AV12, NV12_16L32S, NV12_4L4, RBGA, v210, RGBA64_LE, BGR10A2_LE, RGB10A2_LE, P010_10LE, P012_LE, P016_LE, Y212_LE, Y412_LE, A444_16LE, A422_16LE, A420_16LE, A444_12LE, A422_12LE, A420_12LE, A420_10LE, A422_10LE, A444_10LE, I420_12LE, I420_10LE }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
Properties
downmix-mode
“downmix-mode” GstGLStereoDownmix *
Output anaglyph type to generate when downmixing to mono
Flags : Read / Write
Default value : green-magenta-dubois (0)
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