Stefano Sabatini
0f0f3bd1e0
lavfi: use av_default_item_name() as filter private context logger
avfilter_default_filter_name() is supposed to access an AVFilterContext
struct, if used with a private struct it will cause a crash since it will
access fields which are non defined in the private struct.
13 years ago
Stefano Sabatini
4d6a8a2bdb
lavfi: add avfilter_default_filter_name()
The function is modelled after av_default_item_name(), and will print the
name of the instance filter if defined, otherwise the name of the filter.
This allows to show the instance name in the log, which is useful when
debugging complex filter graphs.
13 years ago
Nicolas George
4a5d18b6e2
vsrc_mandelbrot: use AV_OPT_TYPE_IMAGE_SIZE.
13 years ago
Stefano Sabatini
a9117c755e
lavfi: fix mp and mandelbrot descriptions to make them complete sentences
This is consistent with the other filter descriptions.
13 years ago
Clément Bœsch
9d35fa43ee
lavfi: add missing periods in descriptions.
13 years ago
Michael Niedermayer
656911d84d
vsrc_mandelbrot: Fix vsrc_mandelbrot.c:358:85: warning: ‘epsilon’ may be used uninitialized in this function [-Wuninitialized]
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
2c44aed82a
vsrc_mandelbrot: fix inner=period, the previous optimizations broke it.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
90c02ae142
vsrc_mandelbrot: increase maxiter to 7189
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
690860d0d5
vsrc_mandelbrot: Use threshold to detect cycles.
This way cycles are detected much earlier.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
a5dfedd381
vsrc_mandelbrot: detect edges in interpol()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
4ebbcdb3eb
vsrc_mandelbrot: avoid a | in interpol()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
5dd16af6b5
vsrc_mandelbrot: increase default zoom speed by a factor of 2
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
ca14808275
vsrc_mandelbrot: spatial interpolation
speeds the code up by a factor of about 2-3.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
56fc4cf04f
vsrc_mandelbrot: always store values for periodicity checking, this avoids a few checks.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
da1344e0cd
vsrc_mandelbrot: simplify second bailout search by not recalculating values.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
e749b3780c
vsrc_mandelbrot: increase zyklus array size so that optimizations can write a bit more.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
649d3932db
vsrc_mandelbrot: check bailout only once every 8 iterations, this is around 10% faster.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
fe2efc5264
vsrc_mandelbrot: factorize periodicity checking too.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
cf670fbc96
vsrc_mandelbrot: factorize main calculation out into a macro.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
974d25e2db
mandelbrot: make mincol description and code match.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
04bb26e3ee
mandelbrot: add dither to convergence & mincol colorings.
This avoids banding artifacts.
Note, low end TFTs still show some banding.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
7575980ba4
mandelbrot: make mincol the default.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
8d51cb4fb8
mandelbrot: add mincol inner coloring method.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
5a68b1ac3b
mandelbrot: add inner drawing method to show converence time
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
5582e557e6
mandelbrot: add "fractal" to the description
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
4c52adad69
mandelbrot: Fix "warning: passing argument 2 of ‘draw_mandelbrot’ from incompatible pointer type"
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
73af8ea356
mandelbrot: add math.h for log2()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
70eb58cd92
mandelbrot: avoid INFINITY as openbsd seems not to like it.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Stefano Sabatini
3a9f2f1d65
vsrc_mandelbrot: set options through the opt framework
13 years ago
Giorgio Vazzana
c15400afc5
mandelbrot: remove always-false condition in fill_from_cache
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
08dadd331f
mandelbrot: allow visualizing the period of converged points.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
e8499ab171
mandelbrot: Add inner variable & enum for inner coloring schemes.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
3cbe9afba5
mandelbrot: only check bailout once every 2 iterations.
Once we bailed out we calculate the exact iteration in which it would have happened if needed.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
41fd1b2d5a
mandelbrot: add SQR() macro
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Giorgio Vazzana
e555119c73
mandelbrot: correct and simplify the formula used in NORMALIZED_ITERATION_COUNT
Use log(sqrt(mb->bailout)) instead of log(mb->bailout) because mb->bailout represent
the bailout radius squared, and then simplify the two sqrt().
This is also slightly faster.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
88166fc579
mandelbrot: unroll the innermost loop once.
This allows us to remove a if() and a variable assignment.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
1d06608732
mandelbrot: only check periodicity once for each period instead of twice.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
2fee131b9e
mandelbrot: use period detection depening on left pixel and not the
previous calculated pixel, this is more accurate due to the last
calculated often being farther away.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Giorgio Vazzana
be97e7b9c2
mandelbrot: remove unused variables
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Giorgio Vazzana
459bba58d2
mandelbrot: add missing options to the parsing code
The following options were added: end_scale, end_pts, bailout, outer.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Giorgio Vazzana
6024bdb21a
mandelbrot: fix sscanf format string
Replace ',' with ':'
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
32dd67162a
mandelbrot: Print a note if the cache is too small
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
905202ef6e
mandelbrot: increase cache size
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
fd8d03457a
mandelbrot: increase resolution, and decrease zoom speed to maintain the cpu requirement.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
40d6e30c55
mandelbrot: increase default maxiter
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
6c5dd858b4
mandelbrot: Only use cycle detection if previous pixel was an interior pixel
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
50b8f9388a
mandelbrot: detect cycles to speed up interior rendering.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
3de934c873
mandelbrot: increase default maxiter to 1024
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
07f272bdbb
mandelbrot: use cache to avoid recalculating points.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
8ca891fc1a
mandelbrot: more interresting zoom coordinates borrowed from wikipedia.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago