1 /*
2 * Register all the grabbing devices.
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "config.h"
22 #include "libavutil/thread.h"
23 #include "libavformat/internal.h"
24 #include "avdevice.h"
25
26 /* devices */
27 extern AVInputFormat ff_alsa_demuxer;
28 extern AVOutputFormat ff_alsa_muxer;
29 extern AVInputFormat ff_android_camera_demuxer;
30 extern AVOutputFormat ff_audiotoolbox_muxer;
31 extern AVInputFormat ff_avfoundation_demuxer;
32 extern AVInputFormat ff_bktr_demuxer;
33 extern AVOutputFormat ff_caca_muxer;
34 extern AVInputFormat ff_decklink_demuxer;
35 extern AVOutputFormat ff_decklink_muxer;
36 extern AVInputFormat ff_dshow_demuxer;
37 extern AVInputFormat ff_fbdev_demuxer;
38 extern AVOutputFormat ff_fbdev_muxer;
39 extern AVInputFormat ff_gdigrab_demuxer;
40 extern AVInputFormat ff_iec61883_demuxer;
41 extern AVInputFormat ff_jack_demuxer;
42 extern AVInputFormat ff_kmsgrab_demuxer;
43 extern AVInputFormat ff_lavfi_demuxer;
44 extern AVInputFormat ff_openal_demuxer;
45 extern AVOutputFormat ff_opengl_muxer;
46 extern AVInputFormat ff_oss_demuxer;
47 extern AVOutputFormat ff_oss_muxer;
48 extern AVInputFormat ff_pulse_demuxer;
49 extern AVOutputFormat ff_pulse_muxer;
50 extern AVOutputFormat ff_sdl2_muxer;
51 extern AVInputFormat ff_sndio_demuxer;
52 extern AVOutputFormat ff_sndio_muxer;
53 extern AVInputFormat ff_v4l2_demuxer;
54 extern AVOutputFormat ff_v4l2_muxer;
55 extern AVInputFormat ff_vfwcap_demuxer;
56 extern AVInputFormat ff_xcbgrab_demuxer;
57 extern AVOutputFormat ff_xv_muxer;
58
59 /* external libraries */
60 extern AVInputFormat ff_libcdio_demuxer;
61 extern AVInputFormat ff_libdc1394_demuxer;
62
63 #include "libavdevice/outdev_list.c"
64 #include "libavdevice/indev_list.c"
65
avdevice_register_all(void)66 void avdevice_register_all(void)
67 {
68 avpriv_register_devices(outdev_list, indev_list);
69 }
70
next_input(const AVInputFormat * prev,AVClassCategory c2)71 static void *next_input(const AVInputFormat *prev, AVClassCategory c2)
72 {
73 const AVClass *pc;
74 const AVClassCategory c1 = AV_CLASS_CATEGORY_DEVICE_INPUT;
75 AVClassCategory category = AV_CLASS_CATEGORY_NA;
76 const AVInputFormat *fmt = NULL;
77 int i = 0;
78
79 while (prev && (fmt = indev_list[i])) {
80 i++;
81 if (prev == fmt)
82 break;
83 }
84
85 do {
86 fmt = indev_list[i++];
87 if (!fmt)
88 break;
89 pc = fmt->priv_class;
90 if (!pc)
91 continue;
92 category = pc->category;
93 } while (category != c1 && category != c2);
94 return (AVInputFormat *)fmt;
95 }
96
next_output(const AVOutputFormat * prev,AVClassCategory c2)97 static void *next_output(const AVOutputFormat *prev, AVClassCategory c2)
98 {
99 const AVClass *pc;
100 const AVClassCategory c1 = AV_CLASS_CATEGORY_DEVICE_OUTPUT;
101 AVClassCategory category = AV_CLASS_CATEGORY_NA;
102 const AVOutputFormat *fmt = NULL;
103 int i = 0;
104
105 while (prev && (fmt = outdev_list[i])) {
106 i++;
107 if (prev == fmt)
108 break;
109 }
110
111 do {
112 fmt = outdev_list[i++];
113 if (!fmt)
114 break;
115 pc = fmt->priv_class;
116 if (!pc)
117 continue;
118 category = pc->category;
119 } while (category != c1 && category != c2);
120 return (AVOutputFormat *)fmt;
121 }
122
av_input_audio_device_next(AVInputFormat * d)123 AVInputFormat *av_input_audio_device_next(AVInputFormat *d)
124 {
125 return next_input(d, AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT);
126 }
127
av_input_video_device_next(AVInputFormat * d)128 AVInputFormat *av_input_video_device_next(AVInputFormat *d)
129 {
130 return next_input(d, AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT);
131 }
132
av_output_audio_device_next(AVOutputFormat * d)133 AVOutputFormat *av_output_audio_device_next(AVOutputFormat *d)
134 {
135 return next_output(d, AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT);
136 }
137
av_output_video_device_next(AVOutputFormat * d)138 AVOutputFormat *av_output_video_device_next(AVOutputFormat *d)
139 {
140 return next_output(d, AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT);
141 }
142