Juanjo
b4dbd87c04
- Minor changes on bitrate control
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Originally committed as revision 300 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
d8cf5aea49
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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Originally committed as revision 299 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
f004ca1c1b
optimized encode_dc() (+2% speed on P3 for mpeg1 intra only encodings)
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Originally committed as revision 298 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
80feb2a23e
optimize mpeg1_encode_block()
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(makeing some constant arrays global, merging put_bits(), ...)
Originally committed as revision 297 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
4f0f8bfce3
aligned bitstream writer (1% slower on p3 but perhaps its faster on p4?)
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Originally committed as revision 296 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
17592475b3
alternative bitstream writer (disabled by default, uncomment #define ALT_BISTREAM_WRITER in common.h if u want to try it)
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Originally committed as revision 295 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Juanjo
e03c341ef3
- More work on preliminary bit rate control, just to be able to get an
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average variance for picture's MBs so we can adjust qscale on the MB layer.
Originally committed as revision 294 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Juanjo
37fbfd0a91
- Now the ME is done for the entire picture when enconding, the
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DCT/Quantization is done after we have calculated all the MV of the picture.
- This is the preamble for a better bit rate control.
Originally committed as revision 293 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Juanjo
81401c1fbc
- Fixes on RTP and GOB headers for H.263.
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- 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.
Originally committed as revision 292 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Arpi
3cb32e3d1f
PATCH by Rik Snel <rsnel@cube.dyndns.org>
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this includes the range for quantized dct coefficients in dct_quantize() (-1023...1023)
Originally committed as revision 291 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Arpi
80e103d04c
PATCH by Rik Snel <rsnel@cube.dyndns.org>
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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)
Originally committed as revision 290 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
fa778d53ad
workaround gcc 2.95.2 bug
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Originally committed as revision 289 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
0b2540a0c1
avoid copying input when encoding non intra stuff too
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Originally committed as revision 288 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
d8c2efac4b
width or height %16 != 0 bugfix
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Originally committed as revision 287 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
6fe84b4327
use multiply instead of divides for DC prediction on X86
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Originally committed as revision 286 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Arpi
5dfd24ac98
workaround gcc bug "m" (0)
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avoiding useage of ebx
Originally committed as revision 283 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Zdenek Kabelac
320680d420
* temporal solution for shared lib compilation
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* using ALPHA code optimalization for non ARCH_I386
Originally committed as revision 282 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
2f349de286
(commit by michael)
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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
Originally committed as revision 281 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Arpi
580b82fa24
(m)jpeg pad/flush with 1 instead of 0, fix by Rik Snel <rsnel@cube.dyndns.org>
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Originally committed as revision 280 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
2ddeed44a5
(commit by michael)
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motion-estimation on width/height not divisable through 16 files bugfix
Originally committed as revision 279 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
d2b3c3d7bb
(commit by michael)
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dc coeff isnt dequantized (bug reported by falk hueffner)
Originally committed as revision 278 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
4e3269e87f
(commit by michael)
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quantizer range bugfix (mpeg1 & mpeg4 encoding)
Originally committed as revision 277 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Nick Kurshev
c7997007be
Small simple idct improvement for Alpha by Falk Hueffner <falk.hueffner@student.uni-tuebingen.de>
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Originally committed as revision 276 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Nick Kurshev
1e98dffb7a
Alpha optimizations by Falk Hueffner <falk.hueffner@student.uni-tuebingen.de>
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Originally committed as revision 274 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Nick Kurshev
4bdd9157cc
Cygwin's mangling by Felix Buenemann <atmosfear@users.sourceforge.net>
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Originally committed as revision 273 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
0a8d8945fd
(commit by michael)
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faster simple idct in MMX
Originally committed as revision 269 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
ae40484c1c
(commit by michael)
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bye bye weird al rounding bug ;)
Originally committed as revision 268 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
5975626d6f
(commit by michael)
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emms
Originally committed as revision 267 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
3d9fccbf0f
(commit by michael)
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draw_edges_mmx()
Originally committed as revision 266 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
4973971e37
(commit by michael)
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faster simple_idct in C
Originally committed as revision 265 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
6f903d8e27
(commit by michael)
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16-bit divide instead of 32-bit on x86 in msmpeg_pred_dc()
Originally committed as revision 264 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
8bdbae01fe
(commit by michael)
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memset() in MMX
Originally committed as revision 263 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
99180fe39d
(commit by michael)
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new msmpeg4 dequantizer did dequantize too early
Originally committed as revision 261 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
badaf88eeb
(commit by michael)
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dequantizers skip trailing zeros
msmpeg4 non-intra decoder has its dequantizer "build in" now
Originally committed as revision 260 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
05f361f0c7
(commited by michael / arpi was crazy enough to give me his password)
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fixed a bug in get_vlc() when using the ALT_BITSTREAM_READER (rv10 & mpeg12 decoders where not working)
some optimizations
replaced a if() with a >>
changed get_bits1() a bit so it hopefully is faster on p4
Originally committed as revision 259 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Arpi
eede215681
rv10 sig11 fix by Michael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 258 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
5b3438c630
different fix, s->mbintra_table used only if h263_pred set. - patch by Michael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 257 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Vladimir Dergachev
01dbbd0a9a
This fixes segfaults because of uninitialized s->mbintra_table variable - patch by Vladimir Dergachev <volodya@mindspring.com>
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Originally committed as revision 256 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
6fb904ce30
s->c_dc_scale was 7 if s->qscale==2 but should be 8 (the bug is visible in deep red areas in high bitrate clips) - patch by Michael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 255 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Arpi
477c35a9f0
mpeg4 encoder fix by Michael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 254 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
3587d501a3
aligned bitstream support (optional) - patch by ichael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 253 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
27a3e2c5e0
another bitstream reader code (faster on intel cpus) - patch by Michael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 252 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
bff6ecaa9c
AC table reset (memset) optimization - patch by Michael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 251 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
5a24083859
fix for non-mmx runtimedetect encoding bugs - patch by Michael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 250 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
ef093645ef
fix different UMV handling for mpeg4 vs. h263 - patch by Michael Niedermayer <michaelni@gmx.at>
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Originally committed as revision 249 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
f4470e0936
print cpu flags
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Originally committed as revision 248 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Stephen Davies
fb4a9613ee
qscale estimate fix, diff extended to 64bit wide. patch by Stephen Davies <steve@daviesfam.org>
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Originally committed as revision 247 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Michael Niedermayer
3046f265b9
fix slices when code=0x18, patch by Michael Niedermayer <michael@mplayer.dev.hu>
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Originally committed as revision 246 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Arpi
3a842ea5d1
informal msg
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Originally committed as revision 238 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago
Arpi
98f3b098f9
avcodec_find_encoder_by_name() patch by Alex
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Originally committed as revision 237 to svn://svn.ffmpeg.org/ffmpeg/trunk
23 years ago