[Ffmpeg-devel] [PATCH] file length handling

[Ronald S. Bultje]

Hi,

attached patch adds a file_size value to URIContext and ByteIOContext
(which sets it to 0 or copies it from URIContext), and uses it
preferentially over using seek_end,-1 to retrieve filesize. This is
useful for http, where seeking may not always be possible, but the size
of the file could still be known through the Content-Length or
Content-Range values in the reply-header.
The patch also adds handling of Content-Length/Range to http.c. I've
also taken the freedom to set it to -1 for tcp/udp/rtp/pipe, although it
really won't make any difference.
Since it changes ABI, I've also increased LIBAVFORMAT_VERSION_INT.

Cheers,
Ronald
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