summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--configure.ac1
-rw-r--r--test/Makefile.am2
-rw-r--r--test/test.c181
-rw-r--r--test/test.cpp172
4 files changed, 182 insertions, 174 deletions
diff --git a/configure.ac b/configure.ac
index cb57653..d3e0cae 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,7 +7,6 @@ AC_CONFIG_SRCDIR([libass/ass.c])
AC_CONFIG_HEADER([config.h])
# Checks for programs.
-AC_PROG_CXX
AC_PROG_CC
AC_PROG_CPP
diff --git a/test/Makefile.am b/test/Makefile.am
index 3e2a467..9267b1a 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,5 +1,5 @@
noinst_PROGRAMS = test
-test_SOURCES = test.cpp
+test_SOURCES = test.c
test_CPPFLAGS = -I../libass
test_LDADD = ../libass/libass.la
test_LDFLAGS = -lpng
diff --git a/test/test.c b/test/test.c
new file mode 100644
index 0000000..47b7f29
--- /dev/null
+++ b/test/test.c
@@ -0,0 +1,181 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <ass.h>
+#include <png.h>
+
+typedef struct image_s {
+ int width, height, stride;
+ unsigned char *buffer; // RGB24
+} image_t;
+
+ass_library_t *ass_library;
+ass_renderer_t *ass_renderer;
+
+void msg_callback(int level, char *fmt, va_list * va)
+{
+ if (level > 6)
+ return;
+ printf("libass: ");
+ vprintf(fmt, *va);
+ printf("\n");
+}
+
+static void write_png(char *fname, image_t * img)
+{
+ FILE *fp;
+ png_structp png_ptr;
+ png_infop info_ptr;
+ png_byte **row_pointers;
+ int k;
+
+ png_ptr =
+ png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ info_ptr = png_create_info_struct(png_ptr);
+ fp = NULL;
+
+ if (setjmp(png_ptr->jmpbuf)) {
+ png_destroy_write_struct(&png_ptr, &info_ptr);
+ fclose(fp);
+ return;
+ }
+
+ fp = fopen(fname, "wb");
+ if (fp == NULL) {
+ printf("PNG Error opening %s for writing!\n", fname);
+ return;
+ }
+
+ png_init_io(png_ptr, fp);
+ png_set_compression_level(png_ptr, 0);
+
+ png_set_IHDR(png_ptr, info_ptr, img->width, img->height,
+ 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
+ PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
+
+ png_write_info(png_ptr, info_ptr);
+
+ png_set_bgr(png_ptr);
+
+ row_pointers = (png_byte **) malloc(img->height * sizeof(png_byte *));
+ for (k = 0; k < img->height; k++)
+ row_pointers[k] = img->buffer + img->stride * k;
+
+ png_write_image(png_ptr, row_pointers);
+ png_write_end(png_ptr, info_ptr);
+ png_destroy_write_struct(&png_ptr, &info_ptr);
+
+ free(row_pointers);
+
+ fclose(fp);
+}
+
+static void init(int frame_w, int frame_h)
+{
+ ass_library = ass_library_init();
+ if (!ass_library) {
+ printf("ass_library_init failed!\n");
+ exit(1);
+ }
+
+ ass_set_fonts_dir(ass_library, "");
+ ass_set_extract_fonts(ass_library, 0);
+ ass_set_style_overrides(ass_library, NULL);
+ ass_set_message_cb(ass_library, msg_callback);
+
+ ass_renderer = ass_renderer_init(ass_library);
+ if (!ass_renderer) {
+ printf("ass_renderer_init failed!\n");
+ exit(1);
+ }
+
+ ass_set_frame_size(ass_renderer, frame_w, frame_h);
+ ass_set_margins(ass_renderer, 0, 0, 0, 0);
+ ass_set_use_margins(ass_renderer, 0);
+ ass_set_font_scale(ass_renderer, 1.);
+ ass_set_fonts(ass_renderer, NULL, "Sans", 1, NULL);
+}
+
+static image_t *gen_image(int width, int height)
+{
+ image_t *img = malloc(sizeof(image_t));
+ img->width = width;
+ img->height = height;
+ img->stride = width * 3;
+ img->buffer = (unsigned char *) calloc(1, height * width * 3);
+ memset(img->buffer, 63, img->stride * img->height);
+ //for (int i = 0; i < height * width * 3; ++i)
+ // img->buffer[i] = (i/3/50) % 100;
+ return img;
+}
+
+#define _r(c) ((c)>>24)
+#define _g(c) (((c)>>16)&0xFF)
+#define _b(c) (((c)>>8)&0xFF)
+#define _a(c) ((c)&0xFF)
+
+static void blend_single(image_t * frame, ass_image_t * img)
+{
+ int x, y;
+ unsigned char opacity = 255 - _a(img->color);
+ unsigned char r = _r(img->color);
+ unsigned char g = _g(img->color);
+ unsigned char b = _b(img->color);
+
+ unsigned char *src;
+ unsigned char *dst;
+
+ src = img->bitmap;
+ dst = frame->buffer + img->dst_y * frame->stride + img->dst_x * 3;
+ for (y = 0; y < img->h; ++y) {
+ for (x = 0; x < img->w; ++x) {
+ unsigned k = ((unsigned) src[x]) * opacity / 255;
+ // possible endianness problems
+ dst[x * 3] = (k * b + (255 - k) * dst[x * 3]) / 255;
+ dst[x * 3 + 1] = (k * g + (255 - k) * dst[x * 3 + 1]) / 255;
+ dst[x * 3 + 2] = (k * r + (255 - k) * dst[x * 3 + 2]) / 255;
+ }
+ src += img->stride;
+ dst += frame->stride;
+ }
+}
+
+static void blend(image_t * frame, ass_image_t * img)
+{
+ int cnt = 0;
+ while (img) {
+ blend_single(frame, img);
+ ++cnt;
+ img = img->next;
+ }
+ printf("%d images blended\n", cnt);
+}
+
+int main(int argc, char *argv[])
+{
+ const int frame_w = 640;
+ const int frame_h = 480;
+
+ if (argc < 4) {
+ printf("usage: %s <image file> <subtitle file> <time>\n", argv[0]);
+ exit(1);
+ }
+ char *imgfile = argv[1];
+ char *subfile = argv[2];
+ double tm = strtod(argv[3], 0);
+
+ init(frame_w, frame_h);
+ ass_track_t *track = ass_read_file(ass_library, subfile, NULL);
+ if (!track) {
+ printf("track init failed!\n");
+ return 1;
+ }
+
+ ass_image_t *img =
+ ass_render_frame(ass_renderer, track, (int) (tm * 1000), NULL);
+ image_t *frame = gen_image(frame_w, frame_h);
+ blend(frame, img);
+ write_png(imgfile, frame);
+
+ return 0;
+}
diff --git a/test/test.cpp b/test/test.cpp
deleted file mode 100644
index 9728590..0000000
--- a/test/test.cpp
+++ /dev/null
@@ -1,172 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdexcept>
-#include <stdarg.h>
-
-extern "C" {
-#include <ass.h>
-}
-
-#include <png.h>
-
-struct image_t {
- int width, height, stride;
- unsigned char* buffer; // RGB24
-};
-
-ass_library_t* ass_library;
-ass_renderer_t* ass_renderer;
-
-void msg_callback(int level, char *fmt, va_list *va)
-{
- if (level > 6)
- return;
- printf("libass: ");
- vprintf(fmt, *va);
- printf("\n");
-}
-
-static void write_png(char *fname, image_t* img)
-{
- FILE * fp;
- png_structp png_ptr;
- png_infop info_ptr;
- png_byte **row_pointers;
- int k;
-
- png_ptr = png_create_write_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
- info_ptr = png_create_info_struct(png_ptr);
- fp = NULL;
-
- if (setjmp(png_ptr->jmpbuf)) {
- png_destroy_write_struct(&png_ptr, &info_ptr);
- fclose(fp);
- return;
- }
-
- fp = fopen (fname, "wb");
- if (fp == NULL) {
- printf("PNG Error opening %s for writing!\n", fname);
- return;
- }
-
- png_init_io(png_ptr, fp);
- png_set_compression_level(png_ptr, 0);
-
- png_set_IHDR(png_ptr, info_ptr, img->width, img->height,
- 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
- PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
-
- png_write_info(png_ptr, info_ptr);
-
- png_set_bgr(png_ptr);
-
- row_pointers = (png_byte **)malloc(img->height * sizeof(png_byte*));
- for (k = 0; k < img->height; k++)
- row_pointers[k] = img->buffer + img->stride * k;
-
- png_write_image(png_ptr, row_pointers);
- png_write_end(png_ptr, info_ptr);
- png_destroy_write_struct(&png_ptr, &info_ptr);
-
- free(row_pointers);
-
- fclose (fp);
-}
-
-static void init(int frame_w, int frame_h) {
- ass_library = ass_library_init();
- if (!ass_library) throw std::runtime_error("ass_library_init failed");
-
- ass_set_fonts_dir(ass_library, "");
- ass_set_extract_fonts(ass_library, 0);
- ass_set_style_overrides(ass_library, NULL);
- ass_set_message_cb(ass_library, msg_callback);
-
- ass_renderer = ass_renderer_init(ass_library);
- if (!ass_renderer) throw std::runtime_error("ass_renderer_init failed");
-
- ass_set_frame_size(ass_renderer, frame_w, frame_h);
- ass_set_margins(ass_renderer, 0, 0, 0, 0);
- ass_set_use_margins(ass_renderer, 0);
- ass_set_font_scale(ass_renderer, 1.);
- ass_set_fonts(ass_renderer, NULL, "Sans", 1, NULL);
-}
-
-static image_t* gen_image(int width, int height) {
- image_t* img = new image_t;
- img->width = width;
- img->height = height;
- img->stride = width * 3;
- img->buffer = (unsigned char*)calloc(1, height * width * 3);
- memset(img->buffer, 63, img->stride * img->height);
- //for (int i = 0; i < height * width * 3; ++i)
- // img->buffer[i] = (i/3/50) % 100;
- return img;
-}
-
-#define _r(c) ((c)>>24)
-#define _g(c) (((c)>>16)&0xFF)
-#define _b(c) (((c)>>8)&0xFF)
-#define _a(c) ((c)&0xFF)
-
-static void blend_single(image_t* frame, ass_image_t* img) {
- unsigned char opacity = 255 - _a(img->color);
- unsigned char r = _r(img->color);
- unsigned char g = _g(img->color);
- unsigned char b = _b(img->color);
-
- unsigned char* src;
- unsigned char* dst;
-
- src = img->bitmap;
- dst = frame->buffer + img->dst_y * frame->stride + img->dst_x * 3;
- for (int y = 0; y < img->h; ++y) {
- for (int x = 0; x < img->w; ++x) {
- unsigned k = ((unsigned)src[x]) * opacity / 255;
- // possible endianness problems
- dst[x*3] = (k*b + (255-k)*dst[x*3]) / 255;
- dst[x*3+1] = (k*g + (255-k)*dst[x*3+1]) / 255;
- dst[x*3+2] = (k*r + (255-k)*dst[x*3+2]) / 255;
- }
- src += img->stride;
- dst += frame->stride;
- }
-}
-
-static void blend(image_t* frame, ass_image_t* img) {
- int cnt = 0;
- while (img) {
- blend_single(frame, img);
- ++cnt;
- img = img->next;
- }
- printf("%d images blended\n", cnt);
-}
-
-int main(int argc, char* argv[]) {
- const int frame_w = 640;
- const int frame_h = 480;
-
- if (argc < 4) {
- printf("usage: %s <image file> <subtitle file> <time>\n", argv[0]);
- exit(1);
- }
- char* imgfile = argv[1];
- char* subfile = argv[2];
- double tm = strtod(argv[3], 0);
-
- init(frame_w, frame_h);
- ass_track_t* track = ass_read_file(ass_library, subfile, NULL);
- if (!track) {
- printf("track init failed!\n");
- return 1;
- }
-
- ass_image_t* img = ass_render_frame(ass_renderer, track, (int)(tm * 1000), NULL);
- image_t* frame = gen_image(frame_w, frame_h);
- blend(frame, img);
- write_png(imgfile, frame);
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 20:14:05 +0000