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avformat/http: require seekability only when seeking to position != 0

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-09-06 19:05:52 +02:00
parent 1956cfbaed
commit 7990beedee
1 changed files with 4 additions and 1 deletions
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5
libavformat/http.c
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@ -1427,7 +1427,7 @@ static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int fo
((whence == SEEK_CUR && off == 0) ||
(whence == SEEK_SET && off == s->off)))
return s->off;
else if ((s->filesize == -1 && whence == SEEK_END) || h->is_streamed)
else if ((s->filesize == -1 && whence == SEEK_END))
return AVERROR(ENOSYS);
if (whence == SEEK_CUR)
@ -1440,6 +1440,9 @@ static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int fo
return AVERROR(EINVAL);
s->off = off;
if (s->off && h->is_streamed)
return AVERROR(ENOSYS);
/* we save the old context in case the seek fails */
old_buf_size = s->buf_end - s->buf_ptr;
memcpy(old_buf, s->buf_ptr, old_buf_size);