2007-11-22 16:10:02 +00:00
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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 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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2008-05-09 11:56:36 +00:00
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2008-04-27 11:52:35 +00:00
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#include "config.h"
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2017-03-07 08:55:38 +00:00
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#include "libavutil/thread.h"
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2010-03-06 22:36:36 +00:00
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#include "avdevice.h"
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2007-11-22 16:10:02 +00:00
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2018-01-02 14:34:18 +00:00
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#if FF_API_NEXT
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#include "libavformat/internal.h"
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#endif
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/* devices */
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extern AVInputFormat ff_alsa_demuxer;
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extern AVOutputFormat ff_alsa_muxer;
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2018-02-20 08:41:46 +00:00
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extern AVInputFormat ff_android_camera_demuxer;
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2018-01-02 14:34:18 +00:00
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extern AVInputFormat ff_avfoundation_demuxer;
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extern AVInputFormat ff_bktr_demuxer;
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extern AVOutputFormat ff_caca_muxer;
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extern AVInputFormat ff_decklink_demuxer;
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extern AVOutputFormat ff_decklink_muxer;
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extern AVInputFormat ff_libndi_newtek_demuxer;
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extern AVOutputFormat ff_libndi_newtek_muxer;
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extern AVInputFormat ff_dshow_demuxer;
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extern AVInputFormat ff_fbdev_demuxer;
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extern AVOutputFormat ff_fbdev_muxer;
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extern AVInputFormat ff_gdigrab_demuxer;
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extern AVInputFormat ff_iec61883_demuxer;
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extern AVInputFormat ff_jack_demuxer;
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extern AVInputFormat ff_kmsgrab_demuxer;
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extern AVInputFormat ff_lavfi_demuxer;
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extern AVInputFormat ff_openal_demuxer;
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extern AVOutputFormat ff_opengl_muxer;
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extern AVInputFormat ff_oss_demuxer;
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extern AVOutputFormat ff_oss_muxer;
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extern AVInputFormat ff_pulse_demuxer;
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extern AVOutputFormat ff_pulse_muxer;
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extern AVOutputFormat ff_sdl2_muxer;
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extern AVInputFormat ff_sndio_demuxer;
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extern AVOutputFormat ff_sndio_muxer;
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extern AVInputFormat ff_v4l2_demuxer;
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extern AVOutputFormat ff_v4l2_muxer;
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extern AVInputFormat ff_vfwcap_demuxer;
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extern AVInputFormat ff_xcbgrab_demuxer;
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extern AVOutputFormat ff_xv_muxer;
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/* external libraries */
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extern AVInputFormat ff_libcdio_demuxer;
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extern AVInputFormat ff_libdc1394_demuxer;
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#include "libavdevice/outdev_list.c"
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#include "libavdevice/indev_list.c"
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const AVOutputFormat *av_outdev_iterate(void **opaque)
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{
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uintptr_t i = (uintptr_t)*opaque;
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const AVOutputFormat *f = outdev_list[i];
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if (f)
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*opaque = (void*)(i + 1);
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return f;
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}
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const AVInputFormat *av_indev_iterate(void **opaque)
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{
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uintptr_t i = (uintptr_t)*opaque;
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const AVInputFormat *f = indev_list[i];
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if (f)
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*opaque = (void*)(i + 1);
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return f;
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}
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#if FF_API_NEXT
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FF_DISABLE_DEPRECATION_WARNINGS
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static AVOnce av_device_next_init = AV_ONCE_INIT;
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static void av_device_init_next(void)
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{
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AVOutputFormat *prevout = NULL, *out;
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AVInputFormat *previn = NULL, *in;
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void *i = 0;
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while ((out = (AVOutputFormat*)av_outdev_iterate(&i))) {
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if (prevout)
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prevout->next = out;
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prevout = out;
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2012-12-25 14:29:39 +00:00
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}
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2018-01-02 14:34:18 +00:00
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i = 0;
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while ((in = (AVInputFormat*)av_indev_iterate(&i))) {
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if (previn)
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previn->next = in;
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previn = in;
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2012-12-25 14:29:39 +00:00
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}
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2018-01-02 14:34:18 +00:00
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avpriv_register_devices(outdev_list, indev_list);
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}
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2007-11-22 16:10:02 +00:00
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2018-01-02 14:34:18 +00:00
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void avdevice_register_all(void)
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2007-11-22 16:10:02 +00:00
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{
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2018-01-02 14:34:18 +00:00
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ff_thread_once(&av_device_next_init, av_device_init_next);
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2007-11-22 16:10:02 +00:00
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}
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2017-03-07 08:55:38 +00:00
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2018-01-02 14:34:18 +00:00
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static void *device_next(void *prev, int output,
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AVClassCategory c1, AVClassCategory c2)
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{
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const AVClass *pc;
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AVClassCategory category = AV_CLASS_CATEGORY_NA;
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ff_thread_once(&av_device_next_init, av_device_init_next);
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if (!prev && !(prev = (output ? (void*)outdev_list[0] : (void*)indev_list[0])))
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return NULL;
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do {
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if (output) {
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if (!(prev = ((AVOutputFormat *)prev)->next))
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break;
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pc = ((AVOutputFormat *)prev)->priv_class;
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} else {
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if (!(prev = ((AVInputFormat *)prev)->next))
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break;
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pc = ((AVInputFormat *)prev)->priv_class;
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}
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if (!pc)
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continue;
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category = pc->category;
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} while (category != c1 && category != c2);
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return prev;
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}
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AVInputFormat *av_input_audio_device_next(AVInputFormat *d)
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{
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return device_next(d, 0, AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT,
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AV_CLASS_CATEGORY_DEVICE_INPUT);
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}
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AVInputFormat *av_input_video_device_next(AVInputFormat *d)
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{
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return device_next(d, 0, AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
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AV_CLASS_CATEGORY_DEVICE_INPUT);
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}
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AVOutputFormat *av_output_audio_device_next(AVOutputFormat *d)
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2017-03-07 08:55:38 +00:00
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{
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2018-01-02 14:34:18 +00:00
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return device_next(d, 1, AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT,
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AV_CLASS_CATEGORY_DEVICE_OUTPUT);
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}
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2017-03-07 08:55:38 +00:00
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2018-01-02 14:34:18 +00:00
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AVOutputFormat *av_output_video_device_next(AVOutputFormat *d)
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{
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return device_next(d, 1, AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT,
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AV_CLASS_CATEGORY_DEVICE_OUTPUT);
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2017-03-07 08:55:38 +00:00
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}
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2018-01-02 14:34:18 +00:00
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FF_DISABLE_DEPRECATION_WARNINGS
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#endif
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