In order to sync RTP streams that get their initial RTCP timestamp at
different times, propagate the NTP timestamp of the first RTCP packet
to all other streams.

This makes the timestamps of returned packets start at (near) zero instead
of at any random offset.


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This was done out of pure spite.  Commit rights revoked.

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This lets check_deps set the generic CONFIG_ENCODERS and friends using
an _if_any construct.

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In case of reallocation failure the pointer to the original filter
array was lost. The correct behavior seems to just keep the old array
and count.

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Implement flv_read_seek(), add a missing check on stream_index
and fix timestamp rounding in rtmp_read_seek().

Also add the flv_read_seek2() function, which is not enabled but is
useful as reference.
To actually implement flv_read_seek2() correctly, there would need to
be some corresponding av_url_read_fseek2() function to propagate the
timestamps down to the ByteIOContext and URLContext.

Patch by Howard Chu <hyc <at> highlandsun.com>.

See the thread:
Subject: [FFmpeg-devel] RTMP seek support
Date: 2010-03-28 23:35:02 GMT

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AVERROR_NOTSUPP is (maybe) going to be deprecated.

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the seek operation is not defined in the ByteIOContext.

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the case where the seek operation is not defined in the protocol
handler.

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Patch by Michael Kaufmann, hallo michael-kaufmann ch 


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Fixes issue1834

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2-4% faster overall decode

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container and codec frame rate.


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This fixes roundup issue 1270.


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.5% slower to fix some crashes on invalid streams

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FF_NETERROR is implicitly an AVERROR.

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This patch also changes FF_NETERROR() to be an AVERROR(), i.e. it is always
negative, whereas it was previously positive.



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codec, so there's no reason to (invalidly) limit it to only Theora.

Also fixes issue 1880 (assert triggers on -DDEBUG + Vorbis).



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Previously ffprobe was wrongly outputting the sample aspect ratio as
display aspect ratio.

Patch by Robert Krüger $(echo k-r-u-e-g-e-r@s-i-g-n-a-l-7.d-e | sed s/-//g).

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failed reallocation, rather than just -1.

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