Michael Niedermayer
4325ffd0a2
lowres support
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Originally committed as revision 4545 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
c619ff6daf
optimizations
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dc coeff rounding fix
class=3 num of bits fix
do interlaced check & idct only if CODEC_FLAG_INTERLACED_DCT
Originally committed as revision 4542 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Burkhard Plaum
5b2bf94340
Fix for memleak in dv.c patch by (Burkhard Plaum; plaum, ipf uni-stuttgart de)
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Originally committed as revision 4539 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Edward Hervey
856170f752
DV video encoder/decoder doesn't set keyframe and picture type properties patch by (Edward Hervey:bilboed,gmail com)
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Originally committed as revision 4503 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Roine Gustafsson
983ea0bc87
a few #ifdef CONFIG_X_ENCODER, patch by (Roine Gustafsson <roine users.sourceforge net]
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Originally committed as revision 4213 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
5bb8a0daa1
various fixes related to the non alt_bitstream_reader
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Originally committed as revision 4136 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
934982c4ac
avoid buf_size == 0 checks in every decoder
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Originally committed as revision 3872 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Michael Niedermayer
0ecca7a49f
various security fixes and precautionary checks
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Originally committed as revision 3822 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Burkhard Plaum
073c2593c9
Memory leak fix patch by (Burkhard Plaum <plaum >at< ipf.uni-stuttgart )dot( de>)
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Originally committed as revision 3717 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago
Jeff Muizelaar
21e1913175
* simplification patch by Jeffrey Ryan Muizelaar
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Originally committed as revision 3491 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Michael Niedermayer
53db1cae1c
data_size = 0 cleanup
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Originally committed as revision 3146 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Michael Niedermayer
5da42be192
oops, forgot to commit that change from the warning fixes by (Michael Roitzsch <mroi at users dot sourceforge dot net>)
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Originally committed as revision 3145 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Michael Niedermayer
eea8c08fa8
cleanup & memleak fix
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Originally committed as revision 3095 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Roman Shaposhnik
901ee2bea3
* some significant clean-up of the dv_decode_ac (it looks real
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simple now, take a look for yourself).
* additional optimizations of the decoder. It runs at 55fps now
on my desktop and it used to be ~45fps.
Originally committed as revision 2926 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Falk Hüffner
7906085fcc
warning patrol
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Originally committed as revision 2925 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Roman Shaposhnik
5825425795
* removing casualties of battle of the wits and English language
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Originally committed as revision 2902 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Roman Shaposhnik
6faa4645c5
* DV decoding/encoding now supports MultiThreading for up to 324 CPUs ;-)
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Originally committed as revision 2893 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Roman Shaposhnik
380fd6b1b4
* DV decoder simplifications. Now it looks to be 6% faster. At least
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on my desktop.
* Misc. DV cleanups and fixes.
Originally committed as revision 2892 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Roman Shaposhnik
e7a18d5deb
* moving some of the commonly used bit reading/writing functions
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from common.c -> common.h so that they can be inlined.
+ performace gain ~1% (measured with DV decoding)
+ code bloat 0.05%
Looks like a win-win solution.
Originally committed as revision 2874 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Michael Niedermayer
ac548c5d1d
10000l
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Originally committed as revision 2665 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Michael Niedermayer
a8380f44cf
removing unused var & converting 64->32bit
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Originally committed as revision 2567 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Roman Shaposhnik
e15c330246
* 3x encoding speedup. Finally we seem to be on par with libdv
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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
21 years ago
Michel Bardiaux
9b87956678
av_log() patch by (Michel Bardiaux <mbardiaux at peaktime dot be>)
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Originally committed as revision 2469 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Roman Shaposhnik
10acc47995
* introducing dct248 into the DSP context.
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* simple/accurate implementation of dct248
* DV encoding now supports 2-4-8 DCT
* DV encoding gets a bit faster (but still miles away
from what I think it could do)
* misc. DV codec cleanups
Originally committed as revision 2425 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Michael Niedermayer
9dad924e22
bottom_field_first -> top_field_first
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Originally committed as revision 2402 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago
Roman Shaposhnik
2744ca9ac9
* providing MPEG codecs with a generic fields in AVFrame to use.
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* fixing YUV4MPEG format.
* fixing a bug in DV codec where coded_frame was not set.
Originally committed as revision 2396 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Roman Shaposhnik
00c28046e4
* fix for a trivial 100l declaration typo
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Originally committed as revision 2393 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
f539eb52fe
align
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Originally committed as revision 2389 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Alex Beregszaszi
ed7debda14
removed the obsolete and unused parameters of init_put_bits
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Originally committed as revision 2366 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Roman Shaposhnik
86a7e11502
* recommiting change from SF CVS
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Originally committed as revision 2350 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Roman Shaposhnik
4fa1c4fa8d
* preAlpha DV encoding support -- there's still a truckload
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of work to do, but it least people can try it out and share
ideas. Please don't hesitate to give it a spin:
$ ffmpeg -i file.avi file.dv
is all you need.
* fix for a deallocation bug in DV muxer
Originally committed as revision 2327 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Roman Shaposhnik
7458ccbb02
* DV handling was streamlined for both muxing/demuxing and
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decoding. All muxing/demuxing functionality is now available
in libavformat/dv.[ch].
* dv1394.c and avidec.c were hooked up with general DV demuxer.
* DVAUDIO is dead! Long live pcm_s16le!
* DV audio is now always recognized -- which means we can
now hear all those ducks quaking in pond.dv.
Originally committed as revision 2319 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Fabrice Bellard
df15903f27
removed unused variable
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Originally committed as revision 2159 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
62cf114b59
seems i guessed correctly (last 411 chroma block isnt scaled but cut and reordered)
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Originally committed as revision 1888 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
924311cd98
some libmpeg2 style bitstream reader fixes (no dv doesnt yet work with it)
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Originally committed as revision 1874 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
e20c40697c
release buffer cleanup
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Originally committed as revision 1839 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Roman Shaposhnik
ed543377a4
making it nicer to the client who doesn't expect errors messages in stdout
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Originally committed as revision 1829 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Roman Shaposhnik
880e8ba730
* fixing NTSC frame rate for DV streams
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* let ffmpeg preserve 'aspect_ratio' for recoding.
Do we want to make it tweakable from the command line ?
Originally committed as revision 1827 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
d90cf87b90
fixing mixed dr1 + internal buffers
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Originally committed as revision 1820 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
6aafe463e5
support for DV aspect ratio and erroneous audio patch by (Dan Dennedy (dan at dennedy dot org) and Roman Shaposhnick <rvs at sun dot com>)
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Originally committed as revision 1731 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Roman Shaposhnik
deb0a292b0
AVI type 1 support patch by (Roman Shaposhnick <rvs at sun dot com>)
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Originally committed as revision 1714 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
14bea432f1
per context frame_rate_base, this should finally fix frame_rate related av sync issues
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Originally committed as revision 1666 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
983e3246b7
per file doxy
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Originally committed as revision 1634 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
b0368839ac
MpegEncContext.(i)dct_* -> DspContext.(i)dct_*
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bitexact cleanup
Originally committed as revision 1617 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Roman Shaposhnik
948c3a1397
support for PAL 4:1:1 SMPTE 314M DV streams patch by (Roman Shaposhnick <rvs at sun dot com>)
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Originally committed as revision 1612 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Wolfgang Hesseler
7604246d1a
more #ifdef CONFIG_ENCODERS patch by (Wolfgang Hesseler <qv at multimediaware dot com>) with modifications by me (s/WOLFGANG/CONFIG_ENCODERS/ and some other fixes)
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Originally committed as revision 1588 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Zdenek Kabelac
0c1a9edad4
* UINTX -> uintx_t INTX -> intx_t
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Originally committed as revision 1578 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Fabrice Bellard
425ed6e223
DV audio decoder by Roman Shaposhnick
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Originally committed as revision 1514 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
68f593b484
GetBitContext.size is allways multiplied by 8 -> use size_in_bits to avoid useless *8 in a few inner loops
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Originally committed as revision 1486 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Michael Niedermayer
0e15384d9d
fixing DCTELEM != short
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Originally committed as revision 1462 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago