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lavf/avio: add ffurl_accept and ffurl_handshake

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Signed-off-by: Stephan Holljes <klaxa1337@googlemail.com>
This commit is contained in:
Stephan Holljes 2015-07-03 02:24:18 +02:00
parent cf6c871bee
commit 5125e4b53f
2 changed files with 45 additions and 0 deletions
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20
libavformat/avio.c
View File

@ -211,6 +211,26 @@ int ffurl_connect(URLContext *uc, AVDictionary **options)
return 0;
}
int ffurl_accept(URLContext *s, URLContext **c)
{
av_assert0(!*c);
if (s->prot->url_accept)
return s->prot->url_accept(s, c);
return AVERROR(EBADF);
}
int ffurl_handshake(URLContext *c)
{
int ret;
if (c->prot->url_handshake) {
ret = c->prot->url_handshake(c);
if (ret)
return ret;
}
c->is_connected = 1;
return 0;
}
#define URL_SCHEME_CHARS \
"abcdefghijklmnopqrstuvwxyz" \
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" \

25
libavformat/url.h
View File

@ -58,6 +58,8 @@ typedef struct URLProtocol {
* for those nested protocols.
*/
int (*url_open2)(URLContext *h, const char *url, int flags, AVDictionary **options);
int (*url_accept)(URLContext *s, URLContext **c);
int (*url_handshake)(URLContext *c);
/**
* Read data from the protocol.
@ -139,6 +141,29 @@ int ffurl_connect(URLContext *uc, AVDictionary **options);
int ffurl_open(URLContext **puc, const char *filename, int flags,
const AVIOInterruptCB *int_cb, AVDictionary **options);
/**
* Accept an URLContext c on an URLContext s
*
* @param s server context
* @param c client context, must be unallocated.
* @return >= 0 on success, ff_neterrno() on failure.
*/
int ffurl_accept(URLContext *s, URLContext **c);
/**
* Perform one step of the protocol handshake to accept a new client.
* See avio_handshake() for details.
* Implementations should try to return decreasing values.
* If the protocol uses an underlying protocol, the underlying handshake is
* usually the first step, and the return value can be:
* (largest value for this protocol) + (return value from other protocol)
*
* @param c the client context
* @return >= 0 on success or a negative value corresponding
* to an AVERROR code on failure
*/
int ffurl_handshake(URLContext *c);
/**
* Read up to size bytes from the resource accessed by h, and store
* the read bytes in buf.