vpost_plugins

changeset 0:7f7342bfbb25 tip

vpost plugin for that video: http://www.youtube.com/watch?v=txt6SGL483E
author John Tsiombikas <nuclear@member.fsf.org>
date Wed, 19 Oct 2011 06:23:32 +0300
parents
children
files hullsdr/Makefile hullsdr/encode hullsdr/hullsdr_post.c hullsdr/script hullsdr/test
diffstat 5 files changed, 213 insertions(+), 0 deletions(-) [+]
line diff
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/hullsdr/Makefile	Wed Oct 19 06:23:32 2011 +0300
     1.3 @@ -0,0 +1,14 @@
     1.4 +obj = hullsdr_post.o
     1.5 +so = hullsdr_post.so
     1.6 +
     1.7 +CC = gcc
     1.8 +CFLAGS = -pedantic -Wall -g -fPIC
     1.9 +LDFLAGS = -limago -ldsys -ldrawtext -lGL -lGLU -lglut
    1.10 +
    1.11 +$(so): $(obj)
    1.12 +	$(CC) -o $@ -shared $(obj) $(LDFLAGS)
    1.13 +
    1.14 +
    1.15 +.PHONY: clean
    1.16 +clean:
    1.17 +	rm -f $(obj) $(so)
     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/hullsdr/encode	Wed Oct 19 06:23:32 2011 +0300
     2.3 @@ -0,0 +1,6 @@
     2.4 +#!/bin/sh
     2.5 +
     2.6 +ffmpeg -i output/frame%4d.png -vpre libvpx-720p -b 3900k -pass 1 -an -f webm -y output.webm
     2.7 +
     2.8 +ffmpeg -i output/frame%4d.png -vpre libvpx-720p -b 3900k -pass 2 -an -f webm -y output.webm
     2.9 +#ffmpeg -i output/frame%4d.png -vpre libvpx-720p -b 3900k -pass 2 -acodec libvorbis -ab 100k -f webm -y output.webm
     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/hullsdr/hullsdr_post.c	Wed Oct 19 06:23:32 2011 +0300
     3.3 @@ -0,0 +1,177 @@
     3.4 +#include <math.h>
     3.5 +#include <assert.h>
     3.6 +#include <GL/glut.h>
     3.7 +#include <GL/freeglut_ext.h>
     3.8 +#include <imago2.h>
     3.9 +#include <drawtext.h>
    3.10 +#include <dsys.h>
    3.11 +
    3.12 +static void disp(void);
    3.13 +static void draw_text(void);
    3.14 +static void reshape(int x, int y);
    3.15 +
    3.16 +static struct img_pixmap *curfrm;
    3.17 +static int nfrm;
    3.18 +static int xsz = -1, ysz;
    3.19 +static float tsec;
    3.20 +
    3.21 +static struct dsys_demo *script;
    3.22 +
    3.23 +static struct dtx_font *font;
    3.24 +
    3.25 +static struct {
    3.26 +	const char *name, *caption;
    3.27 +	struct dsys_event *ev;
    3.28 +} events[] = {
    3.29 +	{"diffuse", "diffuse only - 1 light", 0},
    3.30 +	{"diffuse2", "diffuse only - 2 lights", 0},
    3.31 +	{"vmanip", "vertex manipulation", 0},
    3.32 +	{"2tone", "two-tone paint", 0},
    3.33 +	{"specular2", "full phong - 2 lights", 0},
    3.34 +	{"celshade", "cel shading", 0},
    3.35 +	{"sphmap", "reflection - spherical env. map", 0},
    3.36 +	{"cubemap", "reflection - cubic env. map", 0},
    3.37 +	{"refract", "relfection & refraction - cubic env. map w/fresnel", 0},
    3.38 +	{"distort1", "image distortion", 0},
    3.39 +	{"blur", "blur", 0},
    3.40 +	{"distort2", "image distortion (again)", 0},
    3.41 +	{0, 0, 0}
    3.42 +};
    3.43 +
    3.44 +
    3.45 +int init(void)
    3.46 +{
    3.47 +	int i, argc = 1;
    3.48 +	char *argv[] = {"./vpost", 0};
    3.49 +
    3.50 +	if(!(font = dtx_open_font("linux-libertine.ttf", 32))) {
    3.51 +		fprintf(stderr, "failed to open font\n");
    3.52 +		return -1;
    3.53 +	}
    3.54 +
    3.55 +	if(!(script = dsys_open("script"))) {
    3.56 +		fprintf(stderr, "failed to open script\n");
    3.57 +		return -1;
    3.58 +	}
    3.59 +
    3.60 +	for(i=0; events[i].name; i++) {
    3.61 +		events[i].ev = dsys_event(script, events[i].name);
    3.62 +	}
    3.63 +
    3.64 +	glutInit(&argc, argv);
    3.65 +	glutInitWindowSize(32, 32);
    3.66 +	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    3.67 +
    3.68 +	glutCreateWindow("foo");
    3.69 +
    3.70 +	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    3.71 +
    3.72 +	glutDisplayFunc(disp);
    3.73 +	glutReshapeFunc(reshape);
    3.74 +	return 0;
    3.75 +}
    3.76 +
    3.77 +void shutdown(void)
    3.78 +{
    3.79 +	printf("shutdown called\n");
    3.80 +}
    3.81 +
    3.82 +int process(struct img_pixmap *frame, int frm_num, float sec)
    3.83 +{
    3.84 +	curfrm = frame;
    3.85 +	nfrm = frm_num;
    3.86 +	tsec = sec;
    3.87 +
    3.88 +	if(frame->width != xsz || frame->height != ysz) {
    3.89 +		glutReshapeWindow(frame->width, frame->height);
    3.90 +	}
    3.91 +	glutPostRedisplay();
    3.92 +
    3.93 +	while(curfrm) {
    3.94 +		glutMainLoopEvent();
    3.95 +	}
    3.96 +	return 0;
    3.97 +}
    3.98 +
    3.99 +static void disp(void)
   3.100 +{
   3.101 +	assert(curfrm);
   3.102 +	glClear(GL_COLOR_BUFFER_BIT);
   3.103 +
   3.104 +	dsys_update(script, dsys_msec_to_dtime(nfrm));
   3.105 +
   3.106 +	glDrawPixels(xsz, ysz, GL_RGB, GL_UNSIGNED_BYTE, curfrm->pixels);
   3.107 +
   3.108 +	draw_text();
   3.109 +
   3.110 +	glFlush();
   3.111 +	glReadPixels(0, 0, xsz, ysz, GL_RGB, GL_UNSIGNED_BYTE, curfrm->pixels);
   3.112 +
   3.113 +	glutSwapBuffers();
   3.114 +	curfrm = 0;
   3.115 +
   3.116 +	assert(glGetError() == GL_NO_ERROR);
   3.117 +}
   3.118 +
   3.119 +static float fade(float x)
   3.120 +{
   3.121 +	x = 1.0 - (cos((x) * M_PI * 2.0) * 0.5 + 0.5);
   3.122 +	x *= 10.0f;
   3.123 +
   3.124 +	return x > 1.0 ? 1.0 : x;
   3.125 +}
   3.126 +
   3.127 +static void caption(const char *text, struct dsys_event *ev)
   3.128 +{
   3.129 +	float t = fade(dsys_event_value(ev));
   3.130 +
   3.131 +	if(t < (1.0f / 255.0f)) {
   3.132 +		return;
   3.133 +	}
   3.134 +
   3.135 +	glMatrixMode(GL_MODELVIEW);
   3.136 +	glPushMatrix();
   3.137 +	glTranslatef(0, 40 * t - 20, 0);
   3.138 +
   3.139 +	glBegin(GL_QUADS);
   3.140 +	glColor4f(0.7, 0.2, 0.1, t);
   3.141 +	glVertex2f(0, -10);
   3.142 +	glVertex2f(xsz, -10);
   3.143 +	glVertex2f(xsz, 30);
   3.144 +	glVertex2f(0, 30);
   3.145 +	glEnd();
   3.146 +
   3.147 +	glTranslatef(20, 0, 0);
   3.148 +
   3.149 +	glColor4f(1, 1, 1, t);
   3.150 +	dtx_string(text);
   3.151 +
   3.152 +	glPopMatrix();
   3.153 +}
   3.154 +
   3.155 +
   3.156 +static void draw_text(void)
   3.157 +{
   3.158 +	int i;
   3.159 +	dtx_use_font(font, 32);
   3.160 +
   3.161 +	glPushAttrib(GL_ENABLE_BIT);
   3.162 +	glEnable(GL_BLEND);
   3.163 +
   3.164 +	for(i=0; events[i].name; i++) {
   3.165 +		caption(events[i].caption, events[i].ev);
   3.166 +	}
   3.167 +
   3.168 +	glPopAttrib();
   3.169 +}
   3.170 +
   3.171 +static void reshape(int x, int y)
   3.172 +{
   3.173 +	xsz = x;
   3.174 +	ysz = y;
   3.175 +
   3.176 +	glViewport(0, 0, x, y);
   3.177 +	glMatrixMode(GL_PROJECTION);
   3.178 +	glLoadIdentity();
   3.179 +	glOrtho(0, x, y, 0, -1, 1);
   3.180 +}
     4.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     4.2 +++ b/hullsdr/script	Wed Oct 19 06:23:32 2011 +0300
     4.3 @@ -0,0 +1,12 @@
     4.4 +0		341		diffuse
     4.5 +342		667		diffuse2
     4.6 +668		845		vmanip
     4.7 +846		1412	2tone
     4.8 +1413	1933	specular2
     4.9 +1934	2451	celshade
    4.10 +2452	2763	sphmap
    4.11 +2764	3538	cubemap
    4.12 +3539	4666	refract
    4.13 +4667	5525	distort1
    4.14 +5526	5610	blur
    4.15 +5611	5954	distort2
     5.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     5.2 +++ b/hullsdr/test	Wed Oct 19 06:23:32 2011 +0300
     5.3 @@ -0,0 +1,4 @@
     5.4 +#!/bin/sh
     5.5 +
     5.6 +rm -f output/frame*.png
     5.7 +vpost -p ./hullsdr_post.so -i input/frame%04d.png -o output/frame%04d.png