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ffmpeg / libavdevice / alldevices.c @ c6f95144

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/*
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 * Register all the grabbing devices.
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 *
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 * This file is part of Libav.
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 *
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 * Libav 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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 * Libav 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 Libav; 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 "libavformat/avformat.h"
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#include "avdevice.h"
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#define REGISTER_OUTDEV(X,x) { \
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          extern AVOutputFormat ff_##x##_muxer; \
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          if(CONFIG_##X##_OUTDEV)  av_register_output_format(&ff_##x##_muxer); }
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#define REGISTER_INDEV(X,x) { \
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          extern AVInputFormat ff_##x##_demuxer; \
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          if(CONFIG_##X##_INDEV)   av_register_input_format(&ff_##x##_demuxer); }
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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_INDEV    (DV1394, dv1394);
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    REGISTER_INDEV    (FBDEV, fbdev);
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    REGISTER_INDEV    (JACK, jack);
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    REGISTER_INOUTDEV (OSS, oss);
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    REGISTER_INOUTDEV (SNDIO, sndio);
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    REGISTER_INDEV    (V4L2, v4l2);
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    REGISTER_INDEV    (V4L, v4l);
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    REGISTER_INDEV    (VFWCAP, vfwcap);
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    REGISTER_INDEV    (X11_GRAB_DEVICE, x11_grab_device);
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    /* external libraries */
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    REGISTER_INDEV    (LIBDC1394, libdc1394);
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}