Libav
protocols.c
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1 /*
2  * This file is part of Libav.
3  *
4  * Libav 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  * Libav 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 Libav; 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_concat_protocol;
27 extern const URLProtocol ff_crypto_protocol;
30 extern const URLProtocol ff_file_protocol;
31 extern const URLProtocol ff_gopher_protocol;
32 extern const URLProtocol ff_hls_protocol;
33 extern const URLProtocol ff_http_protocol;
35 extern const URLProtocol ff_https_protocol;
36 extern const URLProtocol ff_icecast_protocol;
37 extern const URLProtocol ff_mmsh_protocol;
38 extern const URLProtocol ff_mmst_protocol;
39 extern const URLProtocol ff_md5_protocol;
40 extern const URLProtocol ff_pipe_protocol;
41 extern const URLProtocol ff_rtmp_protocol;
42 extern const URLProtocol ff_rtmpe_protocol;
43 extern const URLProtocol ff_rtmps_protocol;
44 extern const URLProtocol ff_rtmpt_protocol;
45 extern const URLProtocol ff_rtmpte_protocol;
46 extern const URLProtocol ff_rtmpts_protocol;
47 extern const URLProtocol ff_rtp_protocol;
48 extern const URLProtocol ff_sctp_protocol;
49 extern const URLProtocol ff_srtp_protocol;
50 extern const URLProtocol ff_tcp_protocol;
53 extern const URLProtocol ff_udp_protocol;
54 extern const URLProtocol ff_unix_protocol;
55 extern const URLProtocol ff_librtmp_protocol;
60 
62 
64 {
65  int i;
66 
67  /* find the protocol that corresponds to prev */
68  for (i = 0; url_protocols[i]; i++) {
69  if (url_protocols[i]->priv_data_class == prev) {
70  i++;
71  break;
72  }
73  }
74 
75  /* find next protocol with priv options */
76  for (; url_protocols[i]; i++)
77  if (url_protocols[i]->priv_data_class)
78  return url_protocols[i]->priv_data_class;
79  return NULL;
80 }
81 
82 
83 const char *avio_enum_protocols(void **opaque, int output)
84 {
85  const URLProtocol **p = *opaque;
86 
87  p = p ? p + 1 : url_protocols;
88  *opaque = p;
89  if (!*p) {
90  *opaque = NULL;
91  return NULL;
92  }
93  if ((output && (*p)->url_write) || (!output && (*p)->url_read))
94  return (*p)->name;
95  return avio_enum_protocols(opaque, output);
96 }
97 
98 const URLProtocol **ffurl_get_protocols(const char *whitelist,
99  const char *blacklist)
100 {
101  const URLProtocol **ret;
102  int i, ret_idx = 0;
103 
104  ret = av_mallocz_array(FF_ARRAY_ELEMS(url_protocols), sizeof(*ret));
105  if (!ret)
106  return NULL;
107 
108  for (i = 0; url_protocols[i]; i++) {
109  const URLProtocol *up = url_protocols[i];
110 
111  if (whitelist && *whitelist && !av_match_name(up->name, whitelist))
112  continue;
113  if (blacklist && *blacklist && av_match_name(up->name, blacklist))
114  continue;
115 
116  ret[ret_idx++] = up;
117  }
118 
119  return ret;
120 }
memory handling functions
const URLProtocol ff_srtp_protocol
Definition: srtpproto.c:135
const URLProtocol ff_http_protocol
const URLProtocol ff_rtmpts_protocol
#define FF_ARRAY_ELEMS(a)
const URLProtocol ff_unix_protocol
Definition: unix.c:147
const AVClass * priv_data_class
Definition: url.h:89
const URLProtocol ff_librtmpt_protocol
Definition: librtmp.c:340
const URLProtocol ff_sctp_protocol
Definition: sctp.c:360
const URLProtocol ff_tcp_protocol
Definition: tcp.c:215
const URLProtocol ff_ffrtmpcrypt_protocol
Definition: rtmpcrypt.c:327
const URLProtocol ff_mmsh_protocol
Definition: mmsh.c:361
const AVClass * ff_urlcontext_child_class_next(const AVClass *prev)
Definition: protocols.c:63
const URLProtocol ff_librtmpte_protocol
Definition: librtmp.c:370
const URLProtocol ff_rtmpe_protocol
const URLProtocol ff_crypto_protocol
Definition: crypto.c:162
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:215
const URLProtocol ff_pipe_protocol
const URLProtocol ff_rtp_protocol
Definition: rtpproto.c:578
const URLProtocol ff_file_protocol
const URLProtocol ff_ffrtmphttp_protocol
Definition: rtmphttp.c:268
const URLProtocol ff_tls_gnutls_protocol
Definition: tls_gnutls.c:246
static const URLProtocol * url_protocols[]
Definition: protocol_list.c:1
const URLProtocol ff_httpproxy_protocol
const URLProtocol ff_udp_protocol
Definition: udp.c:688
NULL
Definition: eval.c:55
const URLProtocol ff_librtmps_protocol
Definition: librtmp.c:385
const URLProtocol ff_rtmps_protocol
Describe the class of an AVClass context structure.
Definition: log.h:34
const URLProtocol ff_md5_protocol
Definition: md5proto.c:90
const URLProtocol ff_librtmp_protocol
Definition: librtmp.c:325
const char * name
Definition: url.h:56
const URLProtocol ff_hls_protocol
Definition: hlsproto.c:318
const URLProtocol ff_rtmpte_protocol
const URLProtocol ff_gopher_protocol
Definition: gopher.c:117
const char * avio_enum_protocols(void **opaque, int output)
Iterate through names of available protocols.
Definition: protocols.c:83
const URLProtocol ff_mmst_protocol
Definition: mmst.c:622
const URLProtocol ff_https_protocol
const URLProtocol ff_icecast_protocol
Definition: icecast.c:225
const URLProtocol ff_rtmpt_protocol
static void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.h:205
const URLProtocol ff_concat_protocol
Definition: concat.c:184
unbuffered private I/O API
const URLProtocol ff_tls_openssl_protocol
Definition: tls_openssl.c:321
const URLProtocol ff_librtmpe_protocol
Definition: librtmp.c:355
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:98