Originally committed as revision 2537 to svn://svn.ffmpeg.org/ffmpeg/trunk

cleanup

Originally committed as revision 2536 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 2533 to svn://svn.ffmpeg.org/ffmpeg/trunk

in terms of time and we're doing slightly better w.r.t. to
     quality. I don't think there's much room for improvement
     left, but I'd like to try and vectorize a couple of things.
     Btw, any ideas on what may impact performance will be greatly
     appreciated.

Originally committed as revision 2532 to svn://svn.ffmpeg.org/ffmpeg/trunk

- Add default reget_buffer implementation in libavcodec/utils.c
- Remove AVCodecContext.cr_available, no longer needed
- Remove CODEC_CAP_CR, no longer used
- Add img_copy() prototype to avcodec.h (function from imgconvert.c)
- Rename img_copy() to jpeg_img_copy() in libavformat/jpeg.c to avoid
conflict
- Updated msrle, msvideo1, rpza, smc to use reget_buffer

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remove always_inline, gcc fails to inline other more important inline functions otherwise ...

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Originally committed as revision 2481 to svn://svn.ffmpeg.org/ffmpeg/trunk

systems out there.

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Added check to aviod stride change between frames

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Originally committed as revision 2463 to svn://svn.ffmpeg.org/ffmpeg/trunk

Set reference flag for frames.

Originally committed as revision 2460 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 2459 to svn://svn.ffmpeg.org/ffmpeg/trunk

everybody who still uses second streo track for dubbing can
     now export it.

   * void* -> DVDemuxContext* change (per Fabrice's suggestion).

   * -dv1394 capture now works in all modes.

Originally committed as revision 2458 to svn://svn.ffmpeg.org/ffmpeg/trunk

intXY_t -> int_fastXY_t

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