optimized the normal bitstream writer, its faster than the alternative one on p3 now ... lets hope its at least not slower on p4 & k7


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(makeing some constant arrays global, merging put_bits(), ...)


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alternative bitstream writer (disabled by default, uncomment #define ALT_BISTREAM_WRITER in common.h if u want to try it)


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@295 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

average variance for picture's MBs so we can adjust qscale on the MB layer.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@294 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

DCT/Quantization is done after we have calculated all the MV of the picture.
- This is the preamble for a better bit rate control.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@293 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

- RTP callback system implemented for H.263/H.263+.
- Bug fix on DC coefficients of H.263.
- H.263 decoder now returns PTS on picture number.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@292 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

this includes the range for quantized dct coefficients in dct_quantize()  (-1023...1023)


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@291 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

this patch enhances the jpeg header writer. It can be asked to omit
quantisation and huffman tables and it can write different horizontal and
vertical sampling factors. (the last thing is useless for libavcodec
itself (because libavcodec only handles YUV420P at ecoder level), but the
values are initialized so that operation of libavcodec is not impaired)


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avoiding useage of ebx


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@283 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

* using ALPHA code optimalization for non ARCH_I386


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@282 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

mmx & mmx2 quantizer
c dct permutation bugfix
dont copy input on intra only encodings if it can be avoided
dont draw edges on intra only stuff


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@281 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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motion-estimation on width/height not divisable through 16 files bugfix


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@279 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

dc coeff isnt dequantized (bug reported by falk hueffner)


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@278 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

quantizer range bugfix (mpeg1 & mpeg4 encoding)


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faster simple idct in MMX


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@269 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

bye bye weird al rounding bug ;)


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emms


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draw_edges_mmx()


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faster simple_idct in C


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16-bit divide instead of 32-bit on x86 in msmpeg_pred_dc()


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memset() in MMX


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print "using pp filters ..." if -v


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@262 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

new msmpeg4 dequantizer did dequantize too early


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@261 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

dequantizers skip trailing zeros
msmpeg4 non-intra decoder has its dequantizer "build in" now


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@260 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b