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 *track = ass_read_file(ass_library, subfile, NULL);
if (!track) {
printf("track init failed!\n");
return 1;
}
ASS_Image *img =
ass_render_frame(ass_renderer, track, (int) (tm * 1000), NULL);
image_t *frame = gen_image(frame_w, frame_h);
blend(frame, img);
ass_free_track(track);
ass_renderer_done(ass_renderer);
ass_library_done(ass_library);
write_png(imgfile, frame);
return 0;
}
ASS_Track *libass_load_subtitles(LibassConfiguration *libass_conf,
char *subtitles_path)
{
ASS_Track *subtitles = NULL;
subtitles = ass_read_file(libass_conf->library, subtitles_path, "utf-8");
if (subtitles == NULL){
printf("Couldn't load the subtitles : %s\n",subtitles_path);
exit(EXIT_FAILURE);
}
}
bool BigPotSubtitleAss::openSubtitle(const string& filename)
{
//函数的参数是char*,为免意外复制一份
auto s = filename;
//if (checkFileExt(filename))
_track = ass_read_file(_lib, (char*)s.c_str(), NULL);
haveSubtitle_ = (_track != nullptr);
if (haveSubtitle_) subfilename_ = filename;
return haveSubtitle_;
}
int main(int argc, char *argv[]) {
if (argc < 5) {
printf("usage: %s <video_file> <subtitle_file>\n", argv[0]);
exit(1);
}
char *videofile = argv[1];
char *subfile = argv[2];
const int frame_w = atoi(argv[3]);
const int frame_h = atoi(argv[4]);
init(frame_w, frame_h);
ASS_Track *track = ass_read_file(ass_library, subfile, NULL);
if (!track) {
printf("track init failed!\n");
return 1;
}
char file[1000];
sprintf(file, "gen_%s_%s.sh", videofile, subfile);
FILE *p;
p = fopen(file, "w");
int i = 0;
double prevous_time = 0;
double this_time = 0;
for (i = 0; i < track->n_events; ++i) {
ASS_Event *event = track->events + i;
char s[1000];
int j = 0;
int ok = 0;
while (!ok) {
ok = 1;
if (event->Text[j] == '{') {
while (event->Text[j] && event->Text[j] != '}') {
++j;
}
++j;
ok = 0;
}
}
this_time = (event->Start + event->Duration / 2) * 1.0 / 1000.0;
prevous_time = this_time - 20;
if (prevous_time <= 0) prevous_time = 0;
fprintf(p, "./merge.sh %s %s %010.2lf %010.2lf %010.2lf \"%s\" %d %d\n",
videofile, subfile, prevous_time, this_time - prevous_time,
this_time, event->Text + j, frame_w, frame_h);
}
fclose(p);
return 0;
}
int main(int argc, char *argv[])
{
/*if (argc < 3) {
printf("usage: %s <image file> <subtitle file> <time>\n", argv[0]);
exit(1);
}*/
char *subfile = "in.ass";
double tm = 10;
ass_library = ass_library_init();
if (!ass_library) {
printf("ass_library_init failed!\n");
exit(1);
}
ass_set_message_cb(ass_library, msg_callback, NULL);
ass_renderer = ass_renderer_init(ass_library);
if (!ass_renderer) {
printf("ass_renderer_init failed!\n");
exit(1);
}
track = ass_read_file(ass_library, subfile, NULL);
if (!track) {
printf("track init failed!\n");
return 1;
}
int frame_w = track->PlayResX;
int frame_h = track->PlayResY;
ass_set_frame_size(ass_renderer, frame_w, frame_h);
ass_set_fonts(ass_renderer, "font.ttf", "Sans", 1, NULL, 1);
ass_set_cache_limits(ass_renderer, 100, 1);
SDL_Init(SDL_INIT_VIDEO);
SDL_CreateWindowAndRenderer(frame_w, frame_h, 0, &window, &renderer);
SDL_SetRenderDrawColor(renderer, 47, 163, 254, 255);
emscripten_set_main_loop(loop, 0, 1);
//SDL_Quit();
//ass_free_track(track);
//ass_renderer_done(ass_renderer);
//ass_library_done(ass_library);
return 0;
}
bool SubtitleProcessorLibASS::process(const QString &path)
{
if (!ass::api::loaded())
return false;
if (m_track) {
ass_free_track(m_track);
m_track = 0;
}
m_track = ass_read_file(m_ass, (char*)path.toUtf8().constData(), NULL);
if (!m_track) {
qWarning("ass_read_file error, ass track init failed!");
return false;
}
processTrack(m_track);
return true;
}
static av_cold int init_ass(AVFilterContext *ctx)
{
AssContext *ass = ctx->priv;
int ret = init(ctx);
if (ret < 0)
return ret;
/* Initialize fonts */
ass_set_fonts(ass->renderer, NULL, NULL, 1, NULL, 1);
ass->track = ass_read_file(ass->library, ass->filename, NULL);
if (!ass->track) {
av_log(ctx, AV_LOG_ERROR,
"Could not create a libass track when reading file '%s'\n",
ass->filename);
return AVERROR(EINVAL);
}
return 0;
}
static void VS_CC assInit(VSMap *in, VSMap *out, void **instanceData,
VSNode *node, VSCore *core, const VSAPI *vsapi)
{
AssData *d = (AssData *) * instanceData;
vsapi->setVideoInfo(d->vi, 2, node);
d->ass_library = ass_library_init();
if(!d->ass_library) {
vsapi->setError(out, "failed to initialize ASS library");
return;
}
ass_set_message_cb(d->ass_library, assDebugCallback, (void *)d->debuglevel);
ass_set_extract_fonts(d->ass_library, 0);
ass_set_style_overrides(d->ass_library, 0);
d->ass_renderer = ass_renderer_init(d->ass_library);
if(!d->ass_renderer) {
vsapi->setError(out, "failed to initialize ASS renderer");
return;
}
ass_set_font_scale(d->ass_renderer, d->scale);
ass_set_frame_size(d->ass_renderer, d->vi[0].width, d->vi[0].height);
ass_set_margins(d->ass_renderer,
d->margins[0], d->margins[1], d->margins[2], d->margins[3]);
ass_set_use_margins(d->ass_renderer, 1);
if(d->linespacing)
ass_set_line_spacing(d->ass_renderer, d->linespacing);
if(d->sar) {
ass_set_aspect_ratio(d->ass_renderer,
(double)d->vi[0].width /
d->vi[0].height * d->sar, 1);
}
if(d->fontdir)
ass_set_fonts_dir(d->ass_library, d->fontdir);
ass_set_fonts(d->ass_renderer, NULL, NULL, 1, NULL, 1);
if(d->file == NULL) {
char *str, *text, x[16], y[16];
size_t siz;
const char *fmt = "[Script Info]\n"
"ScriptType: v4.00+\n"
"PlayResX: %s\n"
"PlayResY: %s\n"
"[V4+ Styles]\n"
"Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding\n"
"Style: Default,%s\n"
"[Events]\n"
"Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\n"
"Dialogue: 0,0:00:00.00,0:00:10.00,Default,,0,0,0,,%s\n";
sprintf(x, "%d", d->vi[0].width);
sprintf(y, "%d", d->vi[0].height);
text = strrepl(d->text, "\n", "\\N");
siz = (strlen(fmt) + strlen(x) + strlen(y) + strlen(d->style) +
strlen(text)) * sizeof(char);
str = malloc(siz);
sprintf(str, fmt, x, y, d->style, text);
free(text);
d->ass = ass_new_track(d->ass_library);
ass_process_data(d->ass, str, strlen(str));
free(str);
} else {
d->ass = ass_read_file(d->ass_library, (char *)d->file, (char *)d->charset);
}
if(!d->ass) {
vsapi->setError(out, "unable to parse input file");
return;
}
}
