Add support for Bambu Lab X1 series live video stream on Linux.
wxWidgets on Linux uses GStreamer as its back-end for wxMediaCtrl, which
doesn't have a bambu: URI handler. On Windows, this is handled by a Windows
Media subsystem plugin, and on Mac, this is handled with a BambuPlayer
class. Luckily, the libBambuSource.so binary that is distributed with the
network plugin package already contains support for receiving h.264 data
from the network, and the API is the same as is used by the tiny
bambusource.exe binary on Windows; we glue this into a GStreamer source
plugin that registers a URI handler for bambu:.
To make this work, we make a few additional changes elsewhere. GStreamer
seems to have trouble rendering an Xv overlay onto a 32bpp X visual, but
Bambu Slicer seems to request a 32bpp visual for some background
transparency in the Notebook; it doesn't seem to use it in an interesting
way on Linux, though, so we remove that request for transparency to allow
Bambu Studio to render to a 24bpp visual. The media controller
infrastructure also makes a few assumptions about when sizing information
can be queried from a wxMediaCtrl backend that do not hold true on Linux; we
either fix those assumptions, or fake them out, as needed. We also make a
few changes needed to successfully compile C.
This has only been tested with the GStreamer backend for wxWidgets --
notably, not the GStreamer-play backend (these are, astonishingly, two
different things!). If you find that this seems not to work, consider
*un*installing the libgstreamer-plugins-bad1.0-dev package and then
rebuilding wxWidgets.
2023-01-10 09:40:39 +00:00
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/* bambusrc for gstreamer
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* integration with proprietary Bambu Lab blob for getting raw h.264 video
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*
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* Copyright (C) 2023 Joshua Wise <joshua@accelerated.tech>
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2023-01-29 12:27:01 +00:00
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*
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Add support for Bambu Lab X1 series live video stream on Linux.
wxWidgets on Linux uses GStreamer as its back-end for wxMediaCtrl, which
doesn't have a bambu: URI handler. On Windows, this is handled by a Windows
Media subsystem plugin, and on Mac, this is handled with a BambuPlayer
class. Luckily, the libBambuSource.so binary that is distributed with the
network plugin package already contains support for receiving h.264 data
from the network, and the API is the same as is used by the tiny
bambusource.exe binary on Windows; we glue this into a GStreamer source
plugin that registers a URI handler for bambu:.
To make this work, we make a few additional changes elsewhere. GStreamer
seems to have trouble rendering an Xv overlay onto a 32bpp X visual, but
Bambu Slicer seems to request a 32bpp visual for some background
transparency in the Notebook; it doesn't seem to use it in an interesting
way on Linux, though, so we remove that request for transparency to allow
Bambu Studio to render to a 24bpp visual. The media controller
infrastructure also makes a few assumptions about when sizing information
can be queried from a wxMediaCtrl backend that do not hold true on Linux; we
either fix those assumptions, or fake them out, as needed. We also make a
few changes needed to successfully compile C.
This has only been tested with the GStreamer backend for wxWidgets --
notably, not the GStreamer-play backend (these are, astonishingly, two
different things!). If you find that this seems not to work, consider
*un*installing the libgstreamer-plugins-bad1.0-dev package and then
rebuilding wxWidgets.
2023-01-10 09:40:39 +00:00
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Alternatively, the contents of this file may be used under the
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* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
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* which case the following provisions apply instead of the ones
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* mentioned above:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_BAMBUSRC_H__
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#define __GST_BAMBUSRC_H__
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#include <gst/gst.h>
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#include <gst/base/gstpushsrc.h>
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#include <glib.h>
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G_BEGIN_DECLS
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#define GST_TYPE_BAMBUSRC (gst_bambusrc_get_type())
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G_DECLARE_FINAL_TYPE (GstBambuSrc, gst_bambusrc,
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GST, BAMBUSRC, GstPushSrc)
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typedef void *Bambu_Tunnel;
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struct _GstBambuSrc
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{
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GstPushSrc element;
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GstCaps *src_caps;
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gchar *location;
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Bambu_Tunnel tnl;
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GstClockTime sttime;
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2023-01-29 12:27:01 +00:00
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int video_type;
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Add support for Bambu Lab X1 series live video stream on Linux.
wxWidgets on Linux uses GStreamer as its back-end for wxMediaCtrl, which
doesn't have a bambu: URI handler. On Windows, this is handled by a Windows
Media subsystem plugin, and on Mac, this is handled with a BambuPlayer
class. Luckily, the libBambuSource.so binary that is distributed with the
network plugin package already contains support for receiving h.264 data
from the network, and the API is the same as is used by the tiny
bambusource.exe binary on Windows; we glue this into a GStreamer source
plugin that registers a URI handler for bambu:.
To make this work, we make a few additional changes elsewhere. GStreamer
seems to have trouble rendering an Xv overlay onto a 32bpp X visual, but
Bambu Slicer seems to request a 32bpp visual for some background
transparency in the Notebook; it doesn't seem to use it in an interesting
way on Linux, though, so we remove that request for transparency to allow
Bambu Studio to render to a 24bpp visual. The media controller
infrastructure also makes a few assumptions about when sizing information
can be queried from a wxMediaCtrl backend that do not hold true on Linux; we
either fix those assumptions, or fake them out, as needed. We also make a
few changes needed to successfully compile C.
This has only been tested with the GStreamer backend for wxWidgets --
notably, not the GStreamer-play backend (these are, astonishingly, two
different things!). If you find that this seems not to work, consider
*un*installing the libgstreamer-plugins-bad1.0-dev package and then
rebuilding wxWidgets.
2023-01-10 09:40:39 +00:00
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};
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extern void gstbambusrc_register();
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G_END_DECLS
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#endif /* __GST_BAMBUSRC_H__ */
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