[FFmpeg-cvslog] Merge remote-tracking branch 'qatar/release/0.7' into release/0.8

[Michael Niedermayer]

ffmpeg | branch: release/0.8 | Michael Niedermayer <michaelni at gmx.at> | Thu Jan 17 03:16:46 2013 +0100| [685321e4bd84fbe595cebc78cb92619e7df05a61] | committer: Michael Niedermayer

Merge remote-tracking branch 'qatar/release/0.7' into release/0.8

* qatar/release/0.7:
  h264: check ref_count validity for num_ref_idx_active_override_flag
  h264: check context state before decoding slice data partitions
  oggdec: free the ogg streams on read_header failure
  oggdec: check memory allocation
  Fix uninitialized reads on malformed ogg files.
  rtsp: Recheck the reordering queue if getting a new packet
  alacdec: do not be too strict about the extradata size
  h264: fix sps parsing for SVC and CAVLC 4:4:4 Intra profiles
  h264: check sps.log2_max_frame_num for validity
  ppc: always use pic for shared libraries
  h264: enable low delay only if no delayed frames were seen
  lavf: avoid integer overflow in ff_compute_frame_duration()

Conflicts:
	libavformat/oggdec.c

Merged-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=685321e4bd84fbe595cebc78cb92619e7df05a61
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