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Code Issues Releases Activity

lavf/avio: Introduce avio_find_protocol_name

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Make it possible to find out what protocol will be chosen
for a given URL.

Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
This commit is contained in:
Alexander Strasser 2014-01-05 02:11:18 +01:00
parent a392bf6570
commit db3c9701f4
3 changed files with 40 additions and 12 deletions
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39
libavformat/avio.c
View File

@ -215,18 +215,12 @@ int ffurl_connect(URLContext *uc, AVDictionary **options)
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" \
"0123456789+-."
int ffurl_alloc(URLContext **puc, const char *filename, int flags,
const AVIOInterruptCB *int_cb)
static struct URLProtocol *url_find_protocol(const char *filename)
{
URLProtocol *up = NULL;
char proto_str[128], proto_nested[128], *ptr;
size_t proto_len = strspn(filename, URL_SCHEME_CHARS);
if (!first_protocol) {
av_log(NULL, AV_LOG_WARNING, "No URL Protocols are registered. "
"Missing call to av_register_all()?\n");
}
if (filename[proto_len] != ':' &&
(filename[proto_len] != ',' || !strchr(filename + proto_len + 1, ':')) ||
is_dos_path(filename))
@ -243,13 +237,31 @@ int ffurl_alloc(URLContext **puc, const char *filename, int flags,
while (up = ffurl_protocol_next(up)) {
if (!strcmp(proto_str, up->name))
return url_alloc_for_protocol(puc, up, filename, flags, int_cb);
break;
if (up->flags & URL_PROTOCOL_FLAG_NESTED_SCHEME &&
!strcmp(proto_nested, up->name))
return url_alloc_for_protocol(puc, up, filename, flags, int_cb);
break;
}
return up;
}
int ffurl_alloc(URLContext **puc, const char *filename, int flags,
const AVIOInterruptCB *int_cb)
{
URLProtocol *p = NULL;
if (!first_protocol) {
av_log(NULL, AV_LOG_WARNING, "No URL Protocols are registered. "
"Missing call to av_register_all()?\n");
}
p = url_find_protocol(filename);
if (p)
return url_alloc_for_protocol(puc, p, filename, flags, int_cb);
*puc = NULL;
if (!strcmp("https", proto_str))
if (av_strstart("https:", filename, NULL))
av_log(NULL, AV_LOG_WARNING, "https protocol not found, recompile with openssl or gnutls enabled.\n");
return AVERROR_PROTOCOL_NOT_FOUND;
}
@ -376,6 +388,13 @@ int ffurl_close(URLContext *h)
}
const char *avio_find_protocol_name(const char *url)
{
URLProtocol *p = url_find_protocol(url);
return p ? p->name : NULL;
}
int avio_check(const char *url, int flags)
{
URLContext *h;

9
libavformat/avio.h
View File

@ -150,6 +150,15 @@ typedef struct AVIOContext {
/* unbuffered I/O */
/**
* Return the name of the protocol that will handle the passed URL.
*
* NULL is returned if no protocol could be found for the given URL.
*
* @return Name of the protocol or NULL.
*/
const char *avio_find_protocol_name(const char *url);
/**
* Return AVIO_FLAG_* access flags corresponding to the access permissions
* of the resource in url, or a negative value corresponding to an

4
libavformat/version.h
View File

@ -30,8 +30,8 @@
#include "libavutil/version.h"
#define LIBAVFORMAT_VERSION_MAJOR 55
#define LIBAVFORMAT_VERSION_MINOR 32
#define LIBAVFORMAT_VERSION_MICRO 101
#define LIBAVFORMAT_VERSION_MINOR 33
#define LIBAVFORMAT_VERSION_MICRO 100
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \