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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-07 11:13:41 +02:00
FFmpeg/libavformat/protocols.c
Anton Khirnov 6ebaccf327 lavf/protocols: avoid discarding const in avio_enum_protocols()
Instead of storing the protocol pointer in the opaque iteration state,
store just the index of the next protocol, similarly to how
ff_urlcontext_child_class_iterate() works.
2021-12-07 11:16:14 +01:00

142 lines
4.6 KiB
C

/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "libavutil/avstring.h"
#include "libavutil/mem.h"
#include "url.h"
extern const URLProtocol ff_async_protocol;
extern const URLProtocol ff_bluray_protocol;
extern const URLProtocol ff_cache_protocol;
extern const URLProtocol ff_concat_protocol;
extern const URLProtocol ff_concatf_protocol;
extern const URLProtocol ff_crypto_protocol;
extern const URLProtocol ff_data_protocol;
extern const URLProtocol ff_ffrtmpcrypt_protocol;
extern const URLProtocol ff_ffrtmphttp_protocol;
extern const URLProtocol ff_file_protocol;
extern const URLProtocol ff_ftp_protocol;
extern const URLProtocol ff_gopher_protocol;
extern const URLProtocol ff_gophers_protocol;
extern const URLProtocol ff_hls_protocol;
extern const URLProtocol ff_http_protocol;
extern const URLProtocol ff_httpproxy_protocol;
extern const URLProtocol ff_https_protocol;
extern const URLProtocol ff_icecast_protocol;
extern const URLProtocol ff_mmsh_protocol;
extern const URLProtocol ff_mmst_protocol;
extern const URLProtocol ff_md5_protocol;
extern const URLProtocol ff_pipe_protocol;
extern const URLProtocol ff_prompeg_protocol;
extern const URLProtocol ff_rtmp_protocol;
extern const URLProtocol ff_rtmpe_protocol;
extern const URLProtocol ff_rtmps_protocol;
extern const URLProtocol ff_rtmpt_protocol;
extern const URLProtocol ff_rtmpte_protocol;
extern const URLProtocol ff_rtmpts_protocol;
extern const URLProtocol ff_rtp_protocol;
extern const URLProtocol ff_sctp_protocol;
extern const URLProtocol ff_srtp_protocol;
extern const URLProtocol ff_subfile_protocol;
extern const URLProtocol ff_tee_protocol;
extern const URLProtocol ff_tcp_protocol;
extern const URLProtocol ff_tls_protocol;
extern const URLProtocol ff_udp_protocol;
extern const URLProtocol ff_udplite_protocol;
extern const URLProtocol ff_unix_protocol;
extern const URLProtocol ff_libamqp_protocol;
extern const URLProtocol ff_librist_protocol;
extern const URLProtocol ff_librtmp_protocol;
extern const URLProtocol ff_librtmpe_protocol;
extern const URLProtocol ff_librtmps_protocol;
extern const URLProtocol ff_librtmpt_protocol;
extern const URLProtocol ff_librtmpte_protocol;
extern const URLProtocol ff_libsrt_protocol;
extern const URLProtocol ff_libssh_protocol;
extern const URLProtocol ff_libsmbclient_protocol;
extern const URLProtocol ff_libzmq_protocol;
#include "libavformat/protocol_list.c"
const AVClass *ff_urlcontext_child_class_iterate(void **iter)
{
const AVClass *ret = NULL;
uintptr_t i;
for (i = (uintptr_t)*iter; url_protocols[i]; i++) {
ret = url_protocols[i]->priv_data_class;
if (ret)
break;
}
*iter = (void*)(uintptr_t)(url_protocols[i] ? i + 1 : i);
return ret;
}
const char *avio_enum_protocols(void **opaque, int output)
{
uintptr_t i;
for (i = (uintptr_t)*opaque; url_protocols[i]; i++) {
const URLProtocol *p = url_protocols[i];
if ((output && p->url_write) || (!output && p->url_read)) {
*opaque = (void*)(uintptr_t)(i + 1);
return p->name;
}
}
*opaque = NULL;
return NULL;
}
const AVClass *avio_protocol_get_class(const char *name)
{
int i = 0;
for (i = 0; url_protocols[i]; i++) {
if (!strcmp(url_protocols[i]->name, name))
return url_protocols[i]->priv_data_class;
}
return NULL;
}
const URLProtocol **ffurl_get_protocols(const char *whitelist,
const char *blacklist)
{
const URLProtocol **ret;
int i, ret_idx = 0;
ret = av_calloc(FF_ARRAY_ELEMS(url_protocols), sizeof(*ret));
if (!ret)
return NULL;
for (i = 0; url_protocols[i]; i++) {
const URLProtocol *up = url_protocols[i];
if (whitelist && *whitelist && !av_match_name(up->name, whitelist))
continue;
if (blacklist && *blacklist && av_match_name(up->name, blacklist))
continue;
ret[ret_idx++] = up;
}
return ret;
}