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avio: add (ff)url_get_multi_file_handle() for getting more than one fd

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Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Jordi Ortiz 2012-08-17 18:38:59 +02:00 committed by Martin Storsjö
parent 2e8f3cbcda
commit d6b9da1178
3 changed files with 46 additions and 8 deletions
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15
libavformat/avio.c
View File

@ -344,6 +344,21 @@ int ffurl_get_file_handle(URLContext *h)
return h->prot->url_get_file_handle(h);
}
int ffurl_get_multi_file_handle(URLContext *h, int **handles, int *numhandles)
{
if (!h->prot->url_get_multi_file_handle) {
if (!h->prot->url_get_file_handle)
return AVERROR(ENOSYS);
*handles = av_malloc(sizeof(*handles));
if (!*handles)
return AVERROR(ENOMEM);
*numhandles = 1;
*handles[0] = h->prot->url_get_file_handle(h);
return 0;
}
return h->prot->url_get_multi_file_handle(h, handles, numhandles);
}
int ffurl_shutdown(URLContext *h, int flags)
{
if (!h->prot->url_shutdown)

30
libavformat/rtpproto.c
View File

@ -320,13 +320,27 @@ int ff_rtp_get_rtcp_file_handle(URLContext *h) {
return s->rtcp_fd;
}
static int rtp_get_multi_file_handle(URLContext *h, int **handles,
int *numhandles)
{
RTPContext *s = h->priv_data;
int *hs = *handles = av_malloc(sizeof(**handles) * 2);
if (!hs)
return AVERROR(ENOMEM);
hs[0] = s->rtp_fd;
hs[1] = s->rtcp_fd;
*numhandles = 2;
return 0;
}
URLProtocol ff_rtp_protocol = {
.name = "rtp",
.url_open = rtp_open,
.url_read = rtp_read,
.url_write = rtp_write,
.url_close = rtp_close,
.url_get_file_handle = rtp_get_file_handle,
.priv_data_size = sizeof(RTPContext),
.flags = URL_PROTOCOL_FLAG_NETWORK,
.name = "rtp",
.url_open = rtp_open,
.url_read = rtp_read,
.url_write = rtp_write,
.url_close = rtp_close,
.url_get_file_handle = rtp_get_file_handle,
.url_get_multi_file_handle = rtp_get_multi_file_handle,
.priv_data_size = sizeof(RTPContext),
.flags = URL_PROTOCOL_FLAG_NETWORK,
};

9
libavformat/url.h
View File

@ -81,6 +81,8 @@ typedef struct URLProtocol {
int64_t (*url_read_seek)(URLContext *h, int stream_index,
int64_t timestamp, int flags);
int (*url_get_file_handle)(URLContext *h);
int (*url_get_multi_file_handle)(URLContext *h, int **handles,
int *numhandles);
int (*url_shutdown)(URLContext *h, int flags);
int priv_data_size;
const AVClass *priv_data_class;
@ -201,6 +203,13 @@ int64_t ffurl_size(URLContext *h);
*/
int ffurl_get_file_handle(URLContext *h);
/**
* Return the file descriptors associated with this URL.
*
* @return 0 on success or <0 on error.
*/
int ffurl_get_multi_file_handle(URLContext *h, int **handles, int *numhandles);
/**
* Signal the URLContext that we are done reading or writing the stream.
*