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http: Add support for using persistent connections

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Add a new AVOption 'multiple_requests', which indicates if we want
to use persistent connections (ie. Connection: keep-alive).

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Samuel Pitoiset 2012-05-28 15:03:19 +02:00 committed by Martin Storsjö
parent 0426c69310
commit 3bdb438e65
1 changed files with 13 additions and 3 deletions
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16
libavformat/http.c
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@ -53,6 +53,7 @@ typedef struct {
int chunked_post;
int end_chunked_post; /**< A flag which indicates if the end of chunked encoding has been sent. */
int end_header; /**< A flag which indicates we have finished to read POST reply. */
int multiple_requests; /**< A flag which indicates if we use persistent connections. */
} HTTPContext;
#define OFFSET(x) offsetof(HTTPContext, x)
@ -61,6 +62,7 @@ typedef struct {
static const AVOption options[] = {
{"chunked_post", "use chunked transfer-encoding for posts", OFFSET(chunked_post), AV_OPT_TYPE_INT, {.dbl = 1}, 0, 1, E },
{"headers", "custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { 0 }, 0, 0, D|E },
{"multiple_requests", "use persistent connections", OFFSET(multiple_requests), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 1, D|E },
{NULL}
};
#define HTTP_CLASS(flavor)\
@ -382,9 +384,17 @@ static int http_connect(URLContext *h, const char *path, const char *local_path,
if (!has_header(s->headers, "\r\nRange: ") && !post)
len += av_strlcatf(headers + len, sizeof(headers) - len,
"Range: bytes=%"PRId64"-\r\n", s->off);
if (!has_header(s->headers, "\r\nConnection: "))
len += av_strlcpy(headers + len, "Connection: close\r\n",
sizeof(headers)-len);
if (!has_header(s->headers, "\r\nConnection: ")) {
if (s->multiple_requests) {
len += av_strlcpy(headers + len, "Connection: keep-alive\r\n",
sizeof(headers) - len);
} else {
len += av_strlcpy(headers + len, "Connection: close\r\n",
sizeof(headers) - len);
}
}
if (!has_header(s->headers, "\r\nHost: "))
len += av_strlcatf(headers + len, sizeof(headers) - len,
"Host: %s\r\n", hoststr);