FFmpeg
protocols.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "config.h"
20 
21 #include "libavutil/avstring.h"
22 #include "libavutil/mem.h"
23 
24 #include "url.h"
25 
26 extern const URLProtocol ff_async_protocol;
27 extern const URLProtocol ff_bluray_protocol;
28 extern const URLProtocol ff_cache_protocol;
29 extern const URLProtocol ff_concat_protocol;
30 extern const URLProtocol ff_crypto_protocol;
31 extern const URLProtocol ff_data_protocol;
34 extern const URLProtocol ff_file_protocol;
35 extern const URLProtocol ff_ftp_protocol;
36 extern const URLProtocol ff_gopher_protocol;
37 extern const URLProtocol ff_hls_protocol;
38 extern const URLProtocol ff_http_protocol;
40 extern const URLProtocol ff_https_protocol;
41 extern const URLProtocol ff_icecast_protocol;
42 extern const URLProtocol ff_mmsh_protocol;
43 extern const URLProtocol ff_mmst_protocol;
44 extern const URLProtocol ff_md5_protocol;
45 extern const URLProtocol ff_pipe_protocol;
46 extern const URLProtocol ff_prompeg_protocol;
47 extern const URLProtocol ff_rtmp_protocol;
48 extern const URLProtocol ff_rtmpe_protocol;
49 extern const URLProtocol ff_rtmps_protocol;
50 extern const URLProtocol ff_rtmpt_protocol;
51 extern const URLProtocol ff_rtmpte_protocol;
52 extern const URLProtocol ff_rtmpts_protocol;
53 extern const URLProtocol ff_rtp_protocol;
54 extern const URLProtocol ff_sctp_protocol;
55 extern const URLProtocol ff_srtp_protocol;
56 extern const URLProtocol ff_subfile_protocol;
57 extern const URLProtocol ff_tee_protocol;
58 extern const URLProtocol ff_tcp_protocol;
59 extern const URLProtocol ff_tls_protocol;
60 extern const URLProtocol ff_udp_protocol;
61 extern const URLProtocol ff_udplite_protocol;
62 extern const URLProtocol ff_unix_protocol;
63 extern const URLProtocol ff_libamqp_protocol;
64 extern const URLProtocol ff_librtmp_protocol;
69 extern const URLProtocol ff_libsrt_protocol;
70 extern const URLProtocol ff_libssh_protocol;
72 extern const URLProtocol ff_libzmq_protocol;
73 
74 #include "libavformat/protocol_list.c"
75 
76 #if FF_API_CHILD_CLASS_NEXT
77 const AVClass *ff_urlcontext_child_class_next(const AVClass *prev)
78 {
79  int i;
80 
81  /* find the protocol that corresponds to prev */
82  for (i = 0; prev && url_protocols[i]; i++) {
83  if (url_protocols[i]->priv_data_class == prev) {
84  i++;
85  break;
86  }
87  }
88 
89  /* find next protocol with priv options */
90  for (; url_protocols[i]; i++)
91  if (url_protocols[i]->priv_data_class)
92  return url_protocols[i]->priv_data_class;
93  return NULL;
94 }
95 #endif
96 
98 {
99  const AVClass *ret = NULL;
100  uintptr_t i;
101 
102  for (i = (uintptr_t)*iter; url_protocols[i]; i++) {
103  ret = url_protocols[i]->priv_data_class;
104  if (ret)
105  break;
106  }
107 
108  *iter = (void*)(uintptr_t)(url_protocols[i] ? i + 1 : i);
109  return ret;
110 }
111 
112 const char *avio_enum_protocols(void **opaque, int output)
113 {
114  const URLProtocol **p = *opaque;
115 
116  p = p ? p + 1 : url_protocols;
117  *opaque = p;
118  if (!*p) {
119  *opaque = NULL;
120  return NULL;
121  }
122  if ((output && (*p)->url_write) || (!output && (*p)->url_read))
123  return (*p)->name;
124  return avio_enum_protocols(opaque, output);
125 }
126 
128 {
129  int i = 0;
130  for (i = 0; url_protocols[i]; i++) {
131  if (!strcmp(url_protocols[i]->name, name))
132  return url_protocols[i]->priv_data_class;
133  }
134  return NULL;
135 }
136 
137 const URLProtocol **ffurl_get_protocols(const char *whitelist,
138  const char *blacklist)
139 {
140  const URLProtocol **ret;
141  int i, ret_idx = 0;
142 
143  ret = av_mallocz_array(FF_ARRAY_ELEMS(url_protocols), sizeof(*ret));
144  if (!ret)
145  return NULL;
146 
147  for (i = 0; url_protocols[i]; i++) {
148  const URLProtocol *up = url_protocols[i];
149 
150  if (whitelist && *whitelist && !av_match_name(up->name, whitelist))
151  continue;
152  if (blacklist && *blacklist && av_match_name(up->name, blacklist))
153  continue;
154 
155  ret[ret_idx++] = up;
156  }
157 
158  return ret;
159 }
#define NULL
Definition: coverity.c:32
const URLProtocol ff_async_protocol
Definition: async.c:482
Memory handling functions.
const URLProtocol ff_libsrt_protocol
Definition: libsrt.c:716
const URLProtocol ff_srtp_protocol
Definition: srtpproto.c:134
const URLProtocol ff_http_protocol
const URLProtocol ff_rtmpts_protocol
const URLProtocol ff_libssh_protocol
Definition: libssh.c:492
const URLProtocol ff_unix_protocol
Definition: unix.c:148
const URLProtocol ff_librtmpt_protocol
Definition: librtmp.c:366
const URLProtocol ff_sctp_protocol
Definition: sctp.c:362
const URLProtocol ff_tcp_protocol
Definition: tcp.c:313
const URLProtocol ff_ffrtmpcrypt_protocol
Definition: rtmpcrypt.c:328
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce output
const URLProtocol ff_mmsh_protocol
Definition: mmsh.c:411
const URLProtocol ff_librtmpte_protocol
Definition: librtmp.c:396
const URLProtocol ff_rtmpe_protocol
const URLProtocol ff_tls_protocol
Definition: tls_gnutls.c:290
const URLProtocol ff_crypto_protocol
Definition: crypto.c:391
const URLProtocol ff_rtmp_protocol
int av_match_name(const char *name, const char *names)
Match instances of a name in a comma-separated list of names.
Definition: avstring.c:352
const URLProtocol ff_pipe_protocol
const URLProtocol ff_tee_protocol
Definition: teeproto.c:139
const URLProtocol ff_rtp_protocol
Definition: rtpproto.c:559
const URLProtocol ff_bluray_protocol
Definition: bluray.c:227
const URLProtocol ff_file_protocol
const URLProtocol ff_ffrtmphttp_protocol
Definition: rtmphttp.c:276
const URLProtocol ff_httpproxy_protocol
const AVClass * ff_urlcontext_child_class_iterate(void **iter)
Definition: protocols.c:97
const URLProtocol ff_subfile_protocol
Definition: subfile.c:149
#define FF_ARRAY_ELEMS(a)
const URLProtocol ff_udp_protocol
Definition: udp.c:1097
const URLProtocol ff_libamqp_protocol
Definition: libamqp.c:293
const URLProtocol ff_libzmq_protocol
Definition: libzmq.c:195
const URLProtocol ff_librtmps_protocol
Definition: librtmp.c:411
const URLProtocol ff_rtmps_protocol
Describe the class of an AVClass context structure.
Definition: log.h:67
const URLProtocol ff_md5_protocol
Definition: md5proto.c:90
const URLProtocol ff_librtmp_protocol
Definition: librtmp.c:351
const char * name
Definition: url.h:55
const URLProtocol ff_hls_protocol
Definition: hlsproto.c:312
const URLProtocol ff_rtmpte_protocol
const URLProtocol ff_cache_protocol
Definition: cache.c:335
const URLProtocol ff_data_protocol
Definition: data_uri.c:112
const URLProtocol ff_gopher_protocol
Definition: gopher.c:114
const char * avio_enum_protocols(void **opaque, int output)
Iterate through names of available protocols.
Definition: protocols.c:112
const URLProtocol ff_prompeg_protocol
Definition: prompeg.c:470
const URLProtocol ff_udplite_protocol
Definition: udp.c:1109
const URLProtocol ff_mmst_protocol
Definition: mmst.c:632
const AVClass * avio_protocol_get_class(const char *name)
Get AVClass by names of available protocols.
Definition: protocols.c:127
const URLProtocol ff_libsmbclient_protocol
Definition: libsmbclient.c:368
const URLProtocol ff_https_protocol
const URLProtocol ff_icecast_protocol
Definition: icecast.c:215
const URLProtocol ff_rtmpt_protocol
const URLProtocol ff_concat_protocol
Definition: concat.c:194
unbuffered private I/O API
const URLProtocol ff_librtmpe_protocol
Definition: librtmp.c:381
const URLProtocol ff_ftp_protocol
Definition: ftp.c:1131
const URLProtocol ** ffurl_get_protocols(const char *whitelist, const char *blacklist)
Construct a list of protocols matching a given whitelist and/or blacklist.
Definition: protocols.c:137
int i
Definition: input.c:407
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:190
const char * name
Definition: opengl_enc.c:102