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main.c
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main.c
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#include <swfdec/swfdec.h>
#include <stdio.h>
#include <stdlib.h>
#include <yaml.h>
static int compare_images(cairo_surface_t* image1, cairo_surface_t* image2)
{
unsigned char* data1, *data2;
int i, j, width, height, row_stride;
int diff = 0;
if (!image1 || !image2 )
{
return INT_MAX;
}
if (cairo_image_surface_get_width(image1) != cairo_image_surface_get_width(image2) ||
cairo_image_surface_get_height(image1) != cairo_image_surface_get_height(image2))
{
return INT_MAX;
}
width = cairo_image_surface_get_width(image1);
height = cairo_image_surface_get_height(image2);
data1 = cairo_image_surface_get_data(image1);
data2 = cairo_image_surface_get_data(image2);
row_stride = cairo_image_surface_get_stride(image1);
for(i = 0; i < height; ++i )
{
for(j = 0; j < width*4; ++j )
{
if ( data1[i*row_stride+j] != data2[i*row_stride+j] )
{
diff++;
}
}
}
return diff;
}
static void print_usage( const char* appname)
{
printf("Usage: %s {-w: _width_} {-h: _height_} {-s: _scale} {-f: _frames_} {-l: _loop_} {-d: _directory_prefix_} {-x: center_x} {-y: center_y} [input swf] [output filename]\n", appname );
}
int main (int argc, char **argv)
{
SwfdecPlayer *player;
SwfdecURL *url;
yaml_emitter_t emitter;
yaml_event_t event;
FILE *output;
int i;
const char* directory_prefix = NULL;
char output_filename_serial[256] = {0};
unsigned long frame_interval = 0;
unsigned long accum_interval = 0;
int frame_count = 1;
unsigned int override_width = 0;
unsigned int override_height = 0;
float override_scale = 1.0f;
const char* input_filename = NULL;
const char* output_filename = NULL;
int base_index = 0;
cairo_surface_t *surface[2] = {NULL, NULL};
cairo_t *cr[2] = {NULL, NULL};
int loop = 0;
int center_x = -1;
int center_y = -1;
/* Parse the command line arguments */
for(i = 1; i < argc; ++i )
{
const char* arg = argv[i];
if ( arg[0] == '-' )
{
if ( arg[1] == 'w' )
{
override_width = atoi(arg+3);
}
else if ( arg[1] == 'h' )
{
override_height = atoi(arg+3);
}
else if ( arg[1] == 's' )
{
override_scale = (float)atof(arg+3);
}
else if ( arg[1] == 'f' )
{
frame_count = atof(arg+3);
}
else if ( arg[1] == 'l' )
{
loop = atoi(arg+3);
}
else if ( arg[1] == 'd' )
{
directory_prefix = arg+3;
}
else if ( arg[1] == 'x' )
{
center_x = atoi(arg+3);
}
else if ( arg[1] == 'y' )
{
center_y = atoi(arg+3);
}
else
{
printf("Unknown option: %s\n", arg);
}
}
else
{
if (!input_filename )
{
input_filename = arg;
}
else
{
output_filename = arg;
}
}
}
if (!input_filename || !output_filename)
{
print_usage(argv[0]);
return 1;
}
/* Create the Emitter object. */
yaml_emitter_initialize(&emitter);
// init
swfdec_init ();
url = swfdec_url_new_from_input (input_filename);
if (!url)
{
printf("Input file not found: %s.\n", input_filename);
return 1;
}
/* Set a file output. */
sprintf(output_filename_serial, "%s.yaml", output_filename);
output = fopen(output_filename_serial, "wb");
yaml_emitter_set_output_file(&emitter, output);
//yaml_emitter_set_output(&emitter, write_handler, output);
player = swfdec_player_new (NULL);
swfdec_player_set_url (player, url);
/* Create and emit the STREAM-START event. */
yaml_stream_start_event_initialize(&event, YAML_UTF8_ENCODING);
yaml_emitter_emit(&emitter, &event);
/* Create document */
yaml_document_start_event_initialize(&event, NULL, NULL, NULL, 1);
yaml_emitter_emit(&emitter, &event);
/* Create mapping */
yaml_mapping_start_event_initialize(&event, NULL, NULL, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)"type", strlen("type"), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)"keyframe", strlen("keyframe"), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
swfdec_player_advance (player, 0);
if ( override_width == 0 || override_height == 0 )
{
swfdec_player_get_default_size(player, &override_width, &override_height);
}
/* need to set player size */
swfdec_player_set_size(player,
(unsigned int)override_width * override_scale,
(unsigned int)override_height * override_scale);
{
char buf[256] = {0};
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)"defaultframerate", strlen("defaultframerate"), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
sprintf(buf, "%f", swfdec_player_get_rate(player));
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)buf, strlen(buf), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
}
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)"loop", strlen("loop"), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
if ( loop )
{
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)"true", strlen("true"), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
}
else
{
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)"false", strlen("false"), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
}
if (center_x >= 0 )
{
char buf[256] = {0};
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)"center_point_x", strlen("center_point_x"), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
sprintf(buf, "%d", center_x);
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)buf, strlen(buf), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
}
if (center_y >= 0 )
{
char buf[256] = {0};
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)"center_point_y", strlen("center_point_y"), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
sprintf(buf, "%d", center_y);
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)buf, strlen(buf), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
}
printf("Default frame rate: %f\n", swfdec_player_get_rate(player));
frame_interval = (unsigned long)(1000.0 / swfdec_player_get_rate(player));
printf("Default frame interval: %ld\n", frame_interval);
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)"content", strlen("content"), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
/* Create mapping */
yaml_mapping_start_event_initialize(&event, NULL, NULL, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
for(i = 0; i < frame_count; ++i )
{
int new_index = (base_index + 1) % 2;
surface[new_index] = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
(unsigned int)(override_width * override_scale),
(unsigned int)(override_height * override_scale));
cr[new_index] = cairo_create (surface[new_index]);
// render the image
swfdec_player_render (player, cr[new_index]);
frame_interval = swfdec_player_get_next_event(player);
accum_interval += frame_interval;
if ( compare_images(surface[base_index], surface[new_index]) <= 5 )
{
cairo_destroy (cr[new_index]);
cairo_surface_destroy (surface[new_index]);
cr[new_index] = NULL;
surface[new_index] = NULL;
if ( frame_interval > 0 )
swfdec_player_advance (player, frame_interval);
}
else
{
if ( surface[base_index] && surface[new_index] )
{
char buf[256] = {0};
sprintf(buf, "%f", (double)accum_interval / 1000.0);
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)output_filename_serial, strlen(output_filename_serial), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)buf, strlen(buf), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
accum_interval = 0;
}
cairo_destroy (cr[base_index]);
cairo_surface_destroy (surface[base_index]);
cr[base_index] = NULL;
surface[base_index] = NULL;
if (directory_prefix)
sprintf(output_filename_serial, "%s/%s%3.3d.png", directory_prefix, output_filename, i+1);
else
sprintf(output_filename_serial, "%s%3.3d.png", output_filename, i+1);
cairo_surface_write_to_png (surface[new_index], output_filename_serial);
if ( frame_interval > 0 )
swfdec_player_advance (player, frame_interval);
base_index = new_index;
}
}
/* the last frame output */
if ( surface[base_index] )
{
char buf[256] = {0};
sprintf(buf, "%f", (double)accum_interval / 1000.0);
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)output_filename_serial, strlen(output_filename_serial), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
yaml_scalar_event_initialize(&event, NULL, NULL, (yaml_char_t*)buf, strlen(buf), 1, 1, YAML_ANY_SCALAR_STYLE);
yaml_emitter_emit(&emitter, &event);
accum_interval = 0;
}
cairo_destroy (cr[base_index]);
cairo_surface_destroy (surface[base_index]);
g_object_unref (player);
swfdec_url_free(url);
/* End mapping */
yaml_mapping_end_event_initialize(&event);
yaml_emitter_emit(&emitter, &event);
/* End mapping */
yaml_mapping_end_event_initialize(&event);
yaml_emitter_emit(&emitter, &event);
/* End of document */
yaml_stream_end_event_initialize(&event);
yaml_emitter_emit(&emitter, &event);
/* Create and emit the STREAM-END event. */
yaml_stream_end_event_initialize(&event);
yaml_emitter_emit(&emitter, &event);
yaml_emitter_flush(&emitter);
/* Destroy the Emitter object. */
yaml_emitter_delete(&emitter);
fclose(output);
return 0;
}