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Document why we always send a Range HTTP header.

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Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
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Reimar Döffinger 2012-09-23 15:26:56 +02:00
parent 3905caf251
commit 033f53fb8f
1 changed files with 3 additions and 0 deletions
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libavformat/http.c
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@ -411,6 +411,9 @@ static int http_connect(URLContext *h, const char *path, const char *local_path,
if (!has_header(s->headers, "\r\nAccept: "))
len += av_strlcpy(headers + len, "Accept: */*\r\n",
sizeof(headers) - len);
// Note: we send this on purpose even when s->off is 0,
// since it allows us to detect more reliably if a (non-conforming)
// server supports seeking by analysing the reply headers.
if (!has_header(s->headers, "\r\nRange: ") && !post)
len += av_strlcatf(headers + len, sizeof(headers) - len,
"Range: bytes=%"PRId64"-\r\n", s->off);