Andreas Rheinhardt
51ca74b525
avcodec/dvdec: Avoid stack buffers
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Instead reuse the destination RL VLC as scratch space.
This is possible, because the (implicit) codes here are already
ordered from left-to-right in the tree and because the codelengths
are increasing, which implies that mapping from VLC entries to the
corresponding entries used to initialize the VLC is monotonically
increasing. This means that one can reuse the right end of the
destination RL VLC to store the tables used to initialize the VLC
with.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2 years ago
Andreas Rheinhardt
116e2a9ee2
avcodec/dv_tablegen, dvdata: Remove ff_dv_vlc_bits
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The codes can be easily calculated, so the table is unnecessary.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2 years ago
Christophe Gisquet
05da586fef
dv: move inverse weight tables to decoder
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The encoder has its own tables and does not access the idct_factor
member of the DVVideoContext structure.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Christophe Gisquet
80b29c2d0c
dv: use smaller type for weight tables
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Reviewed-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Diego Biurrun
5f92204370
dsputil: Move DV-specific ff_zigzag248_direct table to dvdata
11 years ago
Diego Biurrun
21710ea821
dv: Move DV VLC data tables out of header file
11 years ago
Diego Biurrun
3cbe112653
dv: Split DV data table declarations into their own header
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This is necessary to avoid target config settings bleeding into the host
compilation process with hardcoded tables and the DV VLC tables no longer
present as static tables in a header file.
11 years ago
Diego Biurrun
88bd7fdc82
Drop DCTELEM typedef
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It does not help as an abstraction and adds dsputil dependencies.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
12 years ago
Diego Biurrun
520c1ec699
dv: Split profile handling code into a separate file.
13 years ago
Diego Biurrun
a3dbd459ff
dv: Merge dvquant.h into dvdata.c where all other DV tables reside.
13 years ago
Anton Khirnov
a839dbb94e
dvenc: print allowed profiles if the video doesn't conform to any of them.
13 years ago
Diego Biurrun
d724fe665b
dv: Split off DV video decoder into its own file.
13 years ago
Alex Converse
81749f30cd
dv: Move tables from dvdata.h to dvdata.c
13 years ago
Alex Converse
8dbdc2d840
dv: Move a table used only by the demuxer out of a shared header.
13 years ago
Alex Converse
89c9a8d3fd
dv: Move functions used only by the encoder out of a shared header.
13 years ago
Alex Converse
3746072712
dv: Split dvdata.h into dvdata.h and dvquant.h
13 years ago
Anton Khirnov
242c73a0fd
lavc: use avpriv_ prefix for some dv symbols used in lavf.
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Specifically, ff_dv_frame_profile and ff_dv_codec_profile.
13 years ago
Michael Niedermayer
63d2cfd142
dvdec: Fix dvsd profile[1] detection.
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Fixes Ticket159
If someone knows of a cleaner way to detect this, patch is welcome.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Mans Rullgard
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Diego Biurrun
ba87f0801d
Remove explicit filename from Doxygen @file commands.
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Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Reimar Döffinger
10249a5f31
Split VLC-related tables out of dvdata.h to make it easier to add support
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for hard-coding tables.
Originally committed as revision 22620 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Reimar Döffinger
c76911bd65
Split parts of dvdata.h into dvdata.c, this ensures that things like
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work_chunks_* and dv_idct_factor_* variables appear only once in the binary
instead of 3 times.
Saves 3264 bytes in .rodata and 312416 bytes in .bss on x86_64.
Originally committed as revision 20246 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Maksym Veremeyenko
fbec307f6c
Allow decoding of 625/50 (PAL) with video_stype==1.
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Patch by Maksym Veremeyenko, verem m1stereo tv
Originally committed as revision 20018 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Baptiste Coudurier
d509c743b7
check if frame size matches old sys and assumes corrupted input, fixes #1192
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Originally committed as revision 19192 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
bad5537e2c
Use full internal pathname in doxygen @file directives.
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Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.
Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Baptiste Coudurier
a4fd53c427
fix decoding 720p50 audio samples
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Originally committed as revision 16906 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
406792e7b0
cosmetics: Remove pointless period after copyright statement non-sentences.
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Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
a21fd75f56
Making idct factor tables dynamically allocated
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Originally committed as revision 15885 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
195b349041
Getting rid of huge static DV tables
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Originally committed as revision 15874 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
2ae7e12430
Taking advantage of the new ->execute API
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Originally committed as revision 15806 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
c3d470b4a9
implementing more efficient (and direct) allocation of work for DV codec workers
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Originally committed as revision 15788 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
f94036f159
prettyprinting cosmetics
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Originally committed as revision 15682 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
75f2c20983
spelling cosmetics
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Originally committed as revision 15681 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Aurelien Jacobs
37d3e0667a
uses FF_ARRAY_ELEMS() where appropriate
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Originally committed as revision 15662 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
4e92dabf60
replacing frame_rate and frame_rate_base with an AVRational time_base
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Originally committed as revision 15584 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
45580f8d4d
cosmetic updates as per Michael's suggestion
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Originally committed as revision 15582 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
90d30402b4
vertically aligning as per Michael's suggestion
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Originally committed as revision 15581 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
2b6cee9f1e
Doxygenizing the comments
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Originally committed as revision 15578 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
910f02a054
spelling cosmetics
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Originally committed as revision 15518 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Stefano Sabatini
987903826b
Globally rename the header inclusion guard names.
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Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.' to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".
Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
f8007a1473
Intial implementation of the DV100 (AKA DVCPRO HD) decoder and demuxer as
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specified in SMPTE 370M
Originally committed as revision 15010 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
b4e0102c5c
Introducing video_stype for holding the value of VAUX source pack
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and simplifying dv_frame_profile
Originally committed as revision 15007 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
c89cb5894e
Making block size in bits variable and dependent on the DV spec
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Originally committed as revision 14842 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
713c1aa9a6
Making the number of blocks per macroblock dependent on the DV stream
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specification
Originally committed as revision 14841 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
cb879ec2fb
Introducing DV_MAX_BPM macro instead of a hardcoded value for the
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highest number of blocks per macroblock
Originally committed as revision 14840 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Roman Shaposhnik
3f66d16821
Fixing the units in DV50 tables (both coordinates are
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supposed to be in units of 8 pixels) and simplifying
the calculations of y_ptr and c_offset.
Originally committed as revision 14693 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Roman Shaposhnik
d557838cfb
Coalescing the un-weighting and de-quantization steps for faster
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processing
Originally committed as revision 14691 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
245976da2a
Use full path for #includes from another directory.
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Originally committed as revision 13098 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Michael Niedermayer
095f08d599
some const
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Originally committed as revision 11758 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Diego Biurrun
aa6b38c29d
Fix random typos.
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Originally committed as revision 11477 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago