static void* dvbsub_thread(void* /*arg*/)
{
struct timespec restartWait;
struct timeval now;
set_threadname("dvbsub:main");
sub_debug.print(Debug::VERBOSE, "%s started\n", __FUNCTION__);
if (!dvbSubtitleConverter)
dvbSubtitleConverter = new cDvbSubtitleConverter;
int timeout = 1000000;
#if HAVE_SPARK_HARDWARE || HAVE_DUCKBOX_HARDWARE
CFrameBuffer *fb = CFrameBuffer::getInstance();
int xres = fb->getScreenWidth(true);
int yres = fb->getScreenHeight(true);
int clr_x0 = xres, clr_y0 = yres, clr_x1 = 0, clr_y1 = 0;
uint32_t colortable[256];
memset(colortable, 0, sizeof(colortable));
uint32_t last_color = 0;
#endif
while(dvbsub_running) {
#if HAVE_SPARK_HARDWARE || HAVE_DUCKBOX_HARDWARE
if (ass_track) {
usleep(100000); // FIXME ... should poll instead
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(ass_mutex);
if (!ass_track)
continue;
if (ass_size != sub_font_size) {
ass_size = sub_font_size;
ass_set_font_scale(ass_renderer, ((double) ass_size)/ASS_CUSTOM_FONT_SIZE);
}
int detect_change = 0;
int64_t pts;
getPlayerPts(&pts);
ASS_Image *image = ass_render_frame(ass_renderer, ass_track, pts/90, &detect_change);
if (detect_change) {
if (clr_x1 && clr_y1) {
fb->paintBox(clr_x0, clr_y0, clr_x1 + 1, clr_y1 + 1, 0);
clr_x0 = xres;
clr_y0 = yres;
clr_x1 = clr_y1 = 0;
}
while (image) {
if (last_color != image->color) {
last_color = image->color;
uint32_t c = last_color >> 8, a = 255 - (last_color & 0xff);
for (int i = 0; i < 256; i++) {
uint32_t k = (a * i) >> 8;
colortable[i] = k ? (c | (k << 24)) : 0;
}
}
if (image->w && image->h && image->dst_x > -1 && image->dst_x + image->w < xres && image->dst_y > -1 && image->dst_y + image->h < yres) {
if (image->dst_x < clr_x0)
clr_x0 = image->dst_x;
if (image->dst_y < clr_y0)
clr_y0 = image->dst_y;
if (image->dst_x + image->w > clr_x1)
clr_x1 = image->dst_x + image->w;
if (image->dst_y + image->h > clr_y1)
clr_y1 = image->dst_y + image->h;
uint32_t *lfb = fb->getFrameBufferPointer() + image->dst_x + xres * image->dst_y;
unsigned char *bm = image->bitmap;
int bm_add = image->stride - image->w;
int lfb_add = xres - image->w;
for (int y = 0; y < image->h; y++) {
for (int x = 0; x < image->w; x++) {
if (*bm)
*lfb = colortable[*bm];
lfb++, bm++;
}
lfb += lfb_add;
bm += bm_add;
}
}
image = image->next;
}
fb->getInstance()->blit();
}
continue;
} else {
if (clr_x1 && clr_y1) {
static void *ass_reader_thread(void *)
{
set_threadname("ass_reader_thread");
while (!sem_wait(&ass_sem)) {
if (!ass_reader_running)
break;
ass_data *a = (ass_data *) ass_queue.pop();
if (!a) {
if (!ass_reader_running)
break;
continue;
}
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(ass_mutex);
std::map<int,ASS_Track*>::iterator it = ass_map.find(a->pid);
ASS_Track *track;
if (it == ass_map.end()) {
CFrameBuffer *fb = CFrameBuffer::getInstance();
int xres = fb->getScreenWidth(true);
int yres = fb->getScreenHeight(true);
if (!ass_library) {
ass_library = ass_library_init();
ass_set_extract_fonts(ass_library, 1);
ass_set_style_overrides(ass_library, NULL);
ass_renderer = ass_renderer_init(ass_library);
ass_set_frame_size(ass_renderer, xres, yres);
ass_set_margins(ass_renderer, 3 * yres / 100, 3 * yres / 100, 3 * xres / 100, 3 * xres / 100);
ass_set_use_margins(ass_renderer, 1);
ass_set_hinting(ass_renderer, ASS_HINTING_LIGHT);
ass_set_aspect_ratio(ass_renderer, 1.0, 1.0);
ass_font = *sub_font_file;
ass_set_fonts(ass_renderer, ass_font.c_str(), "Arial", 0, NULL, 1);
}
track = ass_new_track(ass_library);
track->PlayResX = xres;
track->PlayResY = yres;
ass_size = sub_font_size;
ass_set_font_scale(ass_renderer, ((double) ass_size)/ASS_CUSTOM_FONT_SIZE);
if (a->c->subtitle_header) {
std::string ass_hdr = ass_subtitle_header_default();
if (ass_hdr.compare((char*) a->c->subtitle_header)) {
ass_process_codec_private(track, (char *) a->c->subtitle_header, a->c->subtitle_header_size);
} else {
// This is the FFMPEG default ASS header. Use something more suitable instead:
ass_hdr = ass_subtitle_header_custom();
ass_process_codec_private(track, (char *) ass_hdr.c_str(), ass_hdr.length());
}
}
ass_map[a->pid] = track;
if (a->pid == dvbsub_pid)
ass_track = track;
//fprintf(stderr, "### got subtitle track %d, subtitle header: \n---\n%s\n---\n", pid, c->subtitle_header);
} else
track = it->second;
for (unsigned int i = 0; i < a->sub.num_rects; i++)
if (a->sub.rects[i]->ass)
ass_process_data(track, a->sub.rects[i]->ass, strlen(a->sub.rects[i]->ass));
avsubtitle_free(&a->sub);
delete a;
}
ass_reader_running = false;
pthread_exit(NULL);
}