1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/COPYING	Wed Oct 19 06:22:31 2011 +0300
     1.3 @@ -0,0 +1,674 @@
     1.4 +                    GNU GENERAL PUBLIC LICENSE
     1.5 +                       Version 3, 29 June 2007
     1.6 +
     1.7 + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
     1.8 + Everyone is permitted to copy and distribute verbatim copies
     1.9 + of this license document, but changing it is not allowed.
    1.10 +
    1.11 +                            Preamble
    1.12 +
    1.13 +  The GNU General Public License is a free, copyleft license for
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    1.16 +  The licenses for most software and other practical works are designed
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    1.20 +software for all its users.  We, the Free Software Foundation, use the
    1.21 +GNU General Public License for most of our software; it applies also to
    1.22 +any other work released this way by its authors.  You can apply it to
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    1.25 +  When we speak of free software, we are referring to freedom, not
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    1.43 +  Developers that use the GNU GPL protect your rights with two steps:
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    1.53 +  Some devices are designed to deny users access to install or run
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    1.73 +
    1.74 +                       TERMS AND CONDITIONS
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    1.76 +  0. Definitions.
    1.77 +
    1.78 +  "This License" refers to version 3 of the GNU General Public License.
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    1.80 +  "Copyright" also means copyright-like laws that apply to other kinds of
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    1.83 +  "The Program" refers to any copyrightable work licensed under this
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   1.233 +    d) If the work has interactive user interfaces, each must display
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   1.238 +  A compilation of a covered work with other separate and independent
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   1.245 +in an aggregate does not cause this License to apply to the other
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   1.247 +
   1.248 +  6. Conveying Non-Source Forms.
   1.249 +
   1.250 +  You may convey a covered work in object code form under the terms
   1.251 +of sections 4 and 5, provided that you also convey the
   1.252 +machine-readable Corresponding Source under the terms of this License,
   1.253 +in one of these ways:
   1.254 +
   1.255 +    a) Convey the object code in, or embodied in, a physical product
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   1.259 +
   1.260 +    b) Convey the object code in, or embodied in, a physical product
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   1.272 +    c) Convey individual copies of the object code with a copy of the
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   1.278 +    d) Convey the object code by offering access from a designated
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   1.291 +    e) Convey the object code using peer-to-peer transmission, provided
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   1.296 +  A separable portion of the object code, whose source code is excluded
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   1.300 +  A "User Product" is either (1) a "consumer product", which means any
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   1.313 +  "Installation Information" for a User Product means any methods,
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   1.321 +  If you convey an object code work under this section in, or with, or
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   1.340 +  Corresponding Source conveyed, and Installation Information provided,
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   1.345 +
   1.346 +  7. Additional Terms.
   1.347 +
   1.348 +  "Additional permissions" are terms that supplement the terms of this
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   1.357 +  When you convey a copy of a covered work, you may at your option
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   1.368 +    a) Disclaiming warranty or limiting liability differently from the
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   1.406 +  Additional terms, permissive or non-permissive, may be stated in the
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   1.410 +  8. Termination.
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   1.412 +  You may not propagate or modify a covered work except as expressly
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   1.425 +  Moreover, your license from a particular copyright holder is
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   1.432 +  Termination of your rights under this section does not terminate the
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   1.438 +  9. Acceptance Not Required for Having Copies.
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   1.456 +  An "entity transaction" is a transaction transferring control of an
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   1.469 +rights granted under this License, and you may not initiate litigation
   1.470 +(including a cross-claim or counterclaim in a lawsuit) alleging that
   1.471 +any patent claim is infringed by making, using, selling, offering for
   1.472 +sale, or importing the Program or any portion of it.
   1.473 +
   1.474 +  11. Patents.
   1.475 +
   1.476 +  A "contributor" is a copyright holder who authorizes use under this
   1.477 +License of the Program or a work on which the Program is based.  The
   1.478 +work thus licensed is called the contributor's "contributor version".
   1.479 +
   1.480 +  A contributor's "essential patent claims" are all patent claims
   1.481 +owned or controlled by the contributor, whether already acquired or
   1.482 +hereafter acquired, that would be infringed by some manner, permitted
   1.483 +by this License, of making, using, or selling its contributor version,
   1.484 +but do not include claims that would be infringed only as a
   1.485 +consequence of further modification of the contributor version.  For
   1.486 +purposes of this definition, "control" includes the right to grant
   1.487 +patent sublicenses in a manner consistent with the requirements of
   1.488 +this License.
   1.489 +
   1.490 +  Each contributor grants you a non-exclusive, worldwide, royalty-free
   1.491 +patent license under the contributor's essential patent claims, to
   1.492 +make, use, sell, offer for sale, import and otherwise run, modify and
   1.493 +propagate the contents of its contributor version.
   1.494 +
   1.495 +  In the following three paragraphs, a "patent license" is any express
   1.496 +agreement or commitment, however denominated, not to enforce a patent
   1.497 +(such as an express permission to practice a patent or covenant not to
   1.498 +sue for patent infringement).  To "grant" such a patent license to a
   1.499 +party means to make such an agreement or commitment not to enforce a
   1.500 +patent against the party.
   1.501 +
   1.502 +  If you convey a covered work, knowingly relying on a patent license,
   1.503 +and the Corresponding Source of the work is not available for anyone
   1.504 +to copy, free of charge and under the terms of this License, through a
   1.505 +publicly available network server or other readily accessible means,
   1.506 +then you must either (1) cause the Corresponding Source to be so
   1.507 +available, or (2) arrange to deprive yourself of the benefit of the
   1.508 +patent license for this particular work, or (3) arrange, in a manner
   1.509 +consistent with the requirements of this License, to extend the patent
   1.510 +license to downstream recipients.  "Knowingly relying" means you have
   1.511 +actual knowledge that, but for the patent license, your conveying the
   1.512 +covered work in a country, or your recipient's use of the covered work
   1.513 +in a country, would infringe one or more identifiable patents in that
   1.514 +country that you have reason to believe are valid.
   1.515 +
   1.516 +  If, pursuant to or in connection with a single transaction or
   1.517 +arrangement, you convey, or propagate by procuring conveyance of, a
   1.518 +covered work, and grant a patent license to some of the parties
   1.519 +receiving the covered work authorizing them to use, propagate, modify
   1.520 +or convey a specific copy of the covered work, then the patent license
   1.521 +you grant is automatically extended to all recipients of the covered
   1.522 +work and works based on it.
   1.523 +
   1.524 +  A patent license is "discriminatory" if it does not include within
   1.525 +the scope of its coverage, prohibits the exercise of, or is
   1.526 +conditioned on the non-exercise of one or more of the rights that are
   1.527 +specifically granted under this License.  You may not convey a covered
   1.528 +work if you are a party to an arrangement with a third party that is
   1.529 +in the business of distributing software, under which you make payment
   1.530 +to the third party based on the extent of your activity of conveying
   1.531 +the work, and under which the third party grants, to any of the
   1.532 +parties who would receive the covered work from you, a discriminatory
   1.533 +patent license (a) in connection with copies of the covered work
   1.534 +conveyed by you (or copies made from those copies), or (b) primarily
   1.535 +for and in connection with specific products or compilations that
   1.536 +contain the covered work, unless you entered into that arrangement,
   1.537 +or that patent license was granted, prior to 28 March 2007.
   1.538 +
   1.539 +  Nothing in this License shall be construed as excluding or limiting
   1.540 +any implied license or other defenses to infringement that may
   1.541 +otherwise be available to you under applicable patent law.
   1.542 +
   1.543 +  12. No Surrender of Others' Freedom.
   1.544 +
   1.545 +  If conditions are imposed on you (whether by court order, agreement or
   1.546 +otherwise) that contradict the conditions of this License, they do not
   1.547 +excuse you from the conditions of this License.  If you cannot convey a
   1.548 +covered work so as to satisfy simultaneously your obligations under this
   1.549 +License and any other pertinent obligations, then as a consequence you may
   1.550 +not convey it at all.  For example, if you agree to terms that obligate you
   1.551 +to collect a royalty for further conveying from those to whom you convey
   1.552 +the Program, the only way you could satisfy both those terms and this
   1.553 +License would be to refrain entirely from conveying the Program.
   1.554 +
   1.555 +  13. Use with the GNU Affero General Public License.
   1.556 +
   1.557 +  Notwithstanding any other provision of this License, you have
   1.558 +permission to link or combine any covered work with a work licensed
   1.559 +under version 3 of the GNU Affero General Public License into a single
   1.560 +combined work, and to convey the resulting work.  The terms of this
   1.561 +License will continue to apply to the part which is the covered work,
   1.562 +but the special requirements of the GNU Affero General Public License,
   1.563 +section 13, concerning interaction through a network will apply to the
   1.564 +combination as such.
   1.565 +
   1.566 +  14. Revised Versions of this License.
   1.567 +
   1.568 +  The Free Software Foundation may publish revised and/or new versions of
   1.569 +the GNU General Public License from time to time.  Such new versions will
   1.570 +be similar in spirit to the present version, but may differ in detail to
   1.571 +address new problems or concerns.
   1.572 +
   1.573 +  Each version is given a distinguishing version number.  If the
   1.574 +Program specifies that a certain numbered version of the GNU General
   1.575 +Public License "or any later version" applies to it, you have the
   1.576 +option of following the terms and conditions either of that numbered
   1.577 +version or of any later version published by the Free Software
   1.578 +Foundation.  If the Program does not specify a version number of the
   1.579 +GNU General Public License, you may choose any version ever published
   1.580 +by the Free Software Foundation.
   1.581 +
   1.582 +  If the Program specifies that a proxy can decide which future
   1.583 +versions of the GNU General Public License can be used, that proxy's
   1.584 +public statement of acceptance of a version permanently authorizes you
   1.585 +to choose that version for the Program.
   1.586 +
   1.587 +  Later license versions may give you additional or different
   1.588 +permissions.  However, no additional obligations are imposed on any
   1.589 +author or copyright holder as a result of your choosing to follow a
   1.590 +later version.
   1.591 +
   1.592 +  15. Disclaimer of Warranty.
   1.593 +
   1.594 +  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
   1.595 +APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
   1.596 +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
   1.597 +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
   1.598 +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   1.599 +PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
   1.600 +IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
   1.601 +ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
   1.602 +
   1.603 +  16. Limitation of Liability.
   1.604 +
   1.605 +  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
   1.606 +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
   1.607 +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
   1.608 +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
   1.609 +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
   1.610 +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
   1.611 +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
   1.612 +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
   1.613 +SUCH DAMAGES.
   1.614 +
   1.615 +  17. Interpretation of Sections 15 and 16.
   1.616 +
   1.617 +  If the disclaimer of warranty and limitation of liability provided
   1.618 +above cannot be given local legal effect according to their terms,
   1.619 +reviewing courts shall apply local law that most closely approximates
   1.620 +an absolute waiver of all civil liability in connection with the
   1.621 +Program, unless a warranty or assumption of liability accompanies a
   1.622 +copy of the Program in return for a fee.
   1.623 +
   1.624 +                     END OF TERMS AND CONDITIONS
   1.625 +
   1.626 +            How to Apply These Terms to Your New Programs
   1.627 +
   1.628 +  If you develop a new program, and you want it to be of the greatest
   1.629 +possible use to the public, the best way to achieve this is to make it
   1.630 +free software which everyone can redistribute and change under these terms.
   1.631 +
   1.632 +  To do so, attach the following notices to the program.  It is safest
   1.633 +to attach them to the start of each source file to most effectively
   1.634 +state the exclusion of warranty; and each file should have at least
   1.635 +the "copyright" line and a pointer to where the full notice is found.
   1.636 +
   1.637 +    <one line to give the program's name and a brief idea of what it does.>
   1.638 +    Copyright (C) <year>  <name of author>
   1.639 +
   1.640 +    This program is free software: you can redistribute it and/or modify
   1.641 +    it under the terms of the GNU General Public License as published by
   1.642 +    the Free Software Foundation, either version 3 of the License, or
   1.643 +    (at your option) any later version.
   1.644 +
   1.645 +    This program is distributed in the hope that it will be useful,
   1.646 +    but WITHOUT ANY WARRANTY; without even the implied warranty of
   1.647 +    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   1.648 +    GNU General Public License for more details.
   1.649 +
   1.650 +    You should have received a copy of the GNU General Public License
   1.651 +    along with this program.  If not, see <http://www.gnu.org/licenses/>.
   1.652 +
   1.653 +Also add information on how to contact you by electronic and paper mail.
   1.654 +
   1.655 +  If the program does terminal interaction, make it output a short
   1.656 +notice like this when it starts in an interactive mode:
   1.657 +
   1.658 +    <program>  Copyright (C) <year>  <name of author>
   1.659 +    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
   1.660 +    This is free software, and you are welcome to redistribute it
   1.661 +    under certain conditions; type `show c' for details.
   1.662 +
   1.663 +The hypothetical commands `show w' and `show c' should show the appropriate
   1.664 +parts of the General Public License.  Of course, your program's commands
   1.665 +might be different; for a GUI interface, you would use an "about box".
   1.666 +
   1.667 +  You should also get your employer (if you work as a programmer) or school,
   1.668 +if any, to sign a "copyright disclaimer" for the program, if necessary.
   1.669 +For more information on this, and how to apply and follow the GNU GPL, see
   1.670 +<http://www.gnu.org/licenses/>.
   1.671 +
   1.672 +  The GNU General Public License does not permit incorporating your program
   1.673 +into proprietary programs.  If your program is a subroutine library, you
   1.674 +may consider it more useful to permit linking proprietary applications with
   1.675 +the library.  If this is what you want to do, use the GNU Lesser General
   1.676 +Public License instead of this License.  But first, please read
   1.677 +<http://www.gnu.org/philosophy/why-not-lgpl.html>.

     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/Makefile	Wed Oct 19 06:22:31 2011 +0300
     2.3 @@ -0,0 +1,25 @@
     2.4 +PREFIX = /usr/local
     2.5 +
     2.6 +src = $(wildcard src/*.c)
     2.7 +obj = $(src:.c=.o)
     2.8 +bin = vpost
     2.9 +
    2.10 +CC = gcc
    2.11 +CFLAGS = -pedantic -Wall -g
    2.12 +LDFLAGS = -limago -ldl -lpthread
    2.13 +
    2.14 +$(bin): $(obj)
    2.15 +	$(CC) -o $@ $(obj) $(LDFLAGS)
    2.16 +
    2.17 +
    2.18 +.PHONY: clean
    2.19 +clean:
    2.20 +	rm -f $(obj) $(bin)
    2.21 +
    2.22 +.PHONY: install
    2.23 +install:
    2.24 +	cp $(bin) $(PREFIX)/bin/$(bin)
    2.25 +
    2.26 +.PHONY: uninstall
    2.27 +uninstall:
    2.28 +	rm -f $(PREFIX)/bin/$(bin)

     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/README	Wed Oct 19 06:22:31 2011 +0300
     3.3 @@ -0,0 +1,2 @@
     3.4 +depends:
     3.5 +	- imago2: https://gfxtools.svn.sourceforge.net/svnroot/gfxtools/libimago2

     4.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     4.2 +++ b/src/vpost.c	Wed Oct 19 06:22:31 2011 +0300
     4.3 @@ -0,0 +1,170 @@
     4.4 +#include <stdio.h>
     4.5 +#include <stdlib.h>
     4.6 +#include <string.h>
     4.7 +#include <limits.h>
     4.8 +#include <dlfcn.h>
     4.9 +#include <imago2.h>
    4.10 +
    4.11 +int parse_opt(int argc, char **argv);
    4.12 +
    4.13 +char *inpat, *outpat = "out%4d.png";
    4.14 +int range_min, range_max = INT_MAX;
    4.15 +float fps = 30;
    4.16 +char *plugin_name;
    4.17 +
    4.18 +void *dl;
    4.19 +int (*init)(void);
    4.20 +void (*shutdown)(void);
    4.21 +int (*process)(struct img_pixmap*, int, float);
    4.22 +
    4.23 +int main(int argc, char **argv)
    4.24 +{
    4.25 +	char *fname;
    4.26 +	int i, frame_width = -1, frame_height;
    4.27 +
    4.28 +	if(parse_opt(argc, argv) == -1) {
    4.29 +		return 1;
    4.30 +	}
    4.31 +
    4.32 +	if(!(dl = dlopen(plugin_name, RTLD_LAZY))) {
    4.33 +		fprintf(stderr, "failed to open post plugin: %s: %s\n", plugin_name, dlerror());
    4.34 +		return 1;
    4.35 +	}
    4.36 +	init = dlsym(dl, "init");
    4.37 +	shutdown = dlsym(dl, "shutdown");
    4.38 +	if(!(process = dlsym(dl, "process"))) {
    4.39 +		fprintf(stderr, "invalid post plugin, failed to load process func: %s\n", dlerror());
    4.40 +		return 1;
    4.41 +	}
    4.42 +
    4.43 +	if(init) {
    4.44 +		if(init() == -1) {
    4.45 +			fprintf(stderr, "init failed\n");
    4.46 +			return 1;
    4.47 +		}
    4.48 +	}
    4.49 +
    4.50 +	fname = alloca(strlen(inpat) + 11);
    4.51 +
    4.52 +	for(i=range_min; i<range_max; i++) {
    4.53 +		struct img_pixmap frame;
    4.54 +		float tmsec = (float)i / fps;
    4.55 +
    4.56 +		sprintf(fname, inpat, i);
    4.57 +
    4.58 +		img_init(&frame);
    4.59 +		if(img_load(&frame, fname) == -1) {
    4.60 +			fprintf(stderr, "file not found: %s\n", fname);
    4.61 +			img_destroy(&frame);
    4.62 +			break;
    4.63 +		}
    4.64 +		if(frame_width == -1) {
    4.65 +			frame_width = frame.width;
    4.66 +			frame_height = frame.height;
    4.67 +		}
    4.68 +		if(frame_width != frame.width || frame_height != frame.height) {
    4.69 +			fprintf(stderr, "frame %d differs in dimensions! (%dx%d instead of %dx%d)\n", i, frame.width, frame.height, frame_width, frame_height);
    4.70 +			img_destroy(&frame);
    4.71 +			break;
    4.72 +		}
    4.73 +
    4.74 +		img_convert(&frame, IMG_FMT_RGB24);
    4.75 +		if(process(&frame, i, tmsec) == -1) {
    4.76 +			fprintf(stderr, "the post plugin signalled an error\n");
    4.77 +			img_destroy(&frame);
    4.78 +			break;
    4.79 +		}
    4.80 +
    4.81 +		sprintf(fname, outpat, i);
    4.82 +		if(img_save(&frame, fname) == -1) {
    4.83 +			fprintf(stderr, "failed to save frame %d, aborting\n", i);
    4.84 +			img_destroy(&frame);
    4.85 +			break;
    4.86 +		}
    4.87 +		img_destroy(&frame);
    4.88 +	}
    4.89 +
    4.90 +	if(shutdown) {
    4.91 +		shutdown();
    4.92 +	}
    4.93 +	return 0;
    4.94 +}
    4.95 +
    4.96 +int parse_opt(int argc, char **argv)
    4.97 +{
    4.98 +	int i;
    4.99 +	char *endp;
   4.100 +
   4.101 +	for(i=1; i<argc; i++) {
   4.102 +		if(argv[i][0] == '-') {
   4.103 +			if(argv[i][2] == 0) {
   4.104 +				switch(argv[i][1]) {
   4.105 +				case 'i':
   4.106 +					inpat = argv[++i];
   4.107 +					break;
   4.108 +
   4.109 +				case 'o':
   4.110 +					outpat = argv[++i];
   4.111 +					break;
   4.112 +
   4.113 +				case 'r':
   4.114 +					fps = strtod(argv[++i], &endp);
   4.115 +					if(endp == argv[i]) {
   4.116 +						fprintf(stderr, "-r must be followed by a number\n");
   4.117 +						return -1;
   4.118 +					}
   4.119 +					break;
   4.120 +
   4.121 +				case 's':
   4.122 +					range_min = strtol(argv[++i], &endp, 10);
   4.123 +					if(0) {
   4.124 +				case 'e':
   4.125 +						range_max = strtol(argv[++i], &endp, 10);
   4.126 +					}
   4.127 +					if(endp == argv[i]) {
   4.128 +						fprintf(stderr, "-%c must be followed by a number\n", argv[i - 1][1]);
   4.129 +						return -1;
   4.130 +					}
   4.131 +					break;
   4.132 +
   4.133 +				case 'p':
   4.134 +					plugin_name = argv[++i];
   4.135 +					break;
   4.136 +
   4.137 +				default:
   4.138 +					goto invalid;
   4.139 +				}
   4.140 +			} else {
   4.141 +				goto invalid;
   4.142 +			}
   4.143 +		} else {
   4.144 +			goto invalid;
   4.145 +		}
   4.146 +	}
   4.147 +
   4.148 +	if(!inpat) {
   4.149 +		fprintf(stderr, "you must specify an input image sequence\n");
   4.150 +		return -1;
   4.151 +	}
   4.152 +	if(!plugin_name) {
   4.153 +		fprintf(stderr, "you must specify a post plugin\n");
   4.154 +		return -1;
   4.155 +	}
   4.156 +
   4.157 +	printf("%s -> [%s] -> %s\n", inpat, plugin_name, outpat);
   4.158 +	/*if(range_min > 0 || range_max < INT_MAX) {*/
   4.159 +		printf("frames: [%d, ", range_min);
   4.160 +		if(range_max < INT_MAX) {
   4.161 +			printf("%d]\n", range_max);
   4.162 +		} else {
   4.163 +			printf("inf]\n");
   4.164 +		}
   4.165 +	/*}*/
   4.166 +	printf("framerate: %f fps\n", fps);
   4.167 +
   4.168 +	return 0;
   4.169 +
   4.170 +invalid:
   4.171 +	fprintf(stderr, "invalid argument: %s\n", argv[i]);
   4.172 +	return -1;
   4.173 +}