libavformat/protocols.c

   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;
  32 extern const URLProtocol ff_ffrtmpcrypt_protocol;
  33 extern const URLProtocol ff_ffrtmphttp_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;
  39 extern const URLProtocol ff_httpproxy_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;
  65 extern const URLProtocol ff_librtmpe_protocol;
  66 extern const URLProtocol ff_librtmps_protocol;
  67 extern const URLProtocol ff_librtmpt_protocol;
  68 extern const URLProtocol ff_librtmpte_protocol;
  69 extern const URLProtocol ff_libsrt_protocol;
  70 extern const URLProtocol ff_libssh_protocol;
  71 extern const URLProtocol ff_libsmbclient_protocol;
  72 extern const URLProtocol ff_libzmq_protocol;
  73
  74 #include "libavformat/protocol_list.c"
  75
  76 const AVClass *ff_urlcontext_child_class_next(const AVClass *prev)
  77 {
  78     int i;
  79
  80     /* find the protocol that corresponds to prev */
  81     for (i = 0; prev && url_protocols[i]; i++) {
  82         if (url_protocols[i]->priv_data_class == prev) {
  83             i++;
  84             break;
  85         }
  86     }
  87
  88     /* find next protocol with priv options */
  89     for (; url_protocols[i]; i++)
  90         if (url_protocols[i]->priv_data_class)
  91             return url_protocols[i]->priv_data_class;
  92     return NULL;
  93 }
  94
  95
  96 const char *avio_enum_protocols(void **opaque, int output)
  97 {
  98     const URLProtocol **p = *opaque;
  99
 100     p = p ? p + 1 : url_protocols;
 101     *opaque = p;
 102     if (!*p) {
 103         *opaque = NULL;
 104         return NULL;
 105     }
 106     if ((output && (*p)->url_write) || (!output && (*p)->url_read))
 107         return (*p)->name;
 108     return avio_enum_protocols(opaque, output);
 109 }
 110
 111 const AVClass *avio_protocol_get_class(const char *name)
 112 {
 113     int i = 0;
 114     for (i = 0; url_protocols[i]; i++) {
 115         if (!strcmp(url_protocols[i]->name, name))
 116             return url_protocols[i]->priv_data_class;
 117     }
 118     return NULL;
 119 }
 120
 121 const URLProtocol **ffurl_get_protocols(const char *whitelist,
 122                                         const char *blacklist)
 123 {
 124     const URLProtocol **ret;
 125     int i, ret_idx = 0;
 126
 127     ret = av_mallocz_array(FF_ARRAY_ELEMS(url_protocols), sizeof(*ret));
 128     if (!ret)
 129         return NULL;
 130
 131     for (i = 0; url_protocols[i]; i++) {
 132         const URLProtocol *up = url_protocols[i];
 133
 134         if (whitelist && *whitelist && !av_match_name(up->name, whitelist))
 135             continue;
 136         if (blacklist && *blacklist && av_match_name(up->name, blacklist))
 137             continue;
 138
 139         ret[ret_idx++] = up;
 140     }
 141
 142     return ret;
 143 }