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08909fb56b
Based on original code by Christophe Gisquet in 2010, updated to work with current ffmpeg APIs. Supports grabbing a single window or an area of the screen, including support for multiple monitors (Windows does funky stuff with negative coordinates here). I've moved most of the configuration to AVOptions; the input file name is now only the string "desktop", or "title=<windowname>" to select a single window. The AVOptions are the same as x11grab where possible. Code has been added to support a "show_region" mode, like x11grab, which will draw a rectangle on the screen around the area being captured. Instead of duplicating code for paletted image handling, I make use of the GDI API's ability to output DIB (BMP) images, which can be run through ffmpeg's existing BMP decoder. Signed-off-by: Calvin Walton <calvin.walton@kepstin.ca> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
77 lines
3.0 KiB
C
77 lines
3.0 KiB
C
/*
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* Register all the grabbing devices.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "avdevice.h"
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#define REGISTER_OUTDEV(X, x) \
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{ \
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extern AVOutputFormat ff_##x##_muxer; \
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if (CONFIG_##X##_OUTDEV) \
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av_register_output_format(&ff_##x##_muxer); \
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}
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#define REGISTER_INDEV(X, x) \
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{ \
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extern AVInputFormat ff_##x##_demuxer; \
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if (CONFIG_##X##_INDEV) \
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av_register_input_format(&ff_##x##_demuxer); \
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}
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#define REGISTER_INOUTDEV(X, x) REGISTER_OUTDEV(X, x); REGISTER_INDEV(X, x)
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void avdevice_register_all(void)
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{
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static int initialized;
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if (initialized)
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return;
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initialized = 1;
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/* devices */
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REGISTER_INOUTDEV(ALSA, alsa);
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REGISTER_INDEV (BKTR, bktr);
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REGISTER_OUTDEV (CACA, caca);
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REGISTER_OUTDEV (DECKLINK, decklink);
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REGISTER_INDEV (DSHOW, dshow);
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REGISTER_INDEV (DV1394, dv1394);
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REGISTER_INOUTDEV(FBDEV, fbdev);
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REGISTER_INDEV (GDIGRAB, gdigrab);
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REGISTER_INDEV (IEC61883, iec61883);
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REGISTER_INDEV (JACK, jack);
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REGISTER_INDEV (LAVFI, lavfi);
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REGISTER_INDEV (OPENAL, openal);
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REGISTER_OUTDEV (OPENGL, opengl);
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REGISTER_INOUTDEV(OSS, oss);
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REGISTER_INOUTDEV(PULSE, pulse);
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REGISTER_INDEV (QTKIT, qtkit);
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REGISTER_OUTDEV (SDL, sdl);
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REGISTER_INOUTDEV(SNDIO, sndio);
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REGISTER_INOUTDEV(V4L2, v4l2);
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// REGISTER_INDEV (V4L, v4l
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REGISTER_INDEV (VFWCAP, vfwcap);
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REGISTER_INDEV (X11GRAB, x11grab);
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REGISTER_OUTDEV (XV, xv);
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/* external libraries */
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REGISTER_INDEV (LIBCDIO, libcdio);
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REGISTER_INDEV (LIBDC1394, libdc1394);
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}
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