static void event_loop(VideoState *cur_stream) { SDL_Event event; double incr, pos, frac; for (;;) { double x; refresh_loop_wait_event(cur_stream, &event); switch (event.type) { case SDL_KEYDOWN: if (exit_on_keydown) { do_exit(cur_stream); break; } switch (event.key.keysym.sym) { case SDLK_ESCAPE: case SDLK_q: do_exit(cur_stream); break; case SDLK_f: toggle_full_screen(cur_stream); cur_stream->force_refresh = 1; break; case SDLK_p: case SDLK_SPACE: toggle_pause(cur_stream); break; case SDLK_s: // S: Step to next frame step_to_next_frame(cur_stream); break; case SDLK_a: stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); break; case SDLK_v: stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); break; case SDLK_t: stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); break; case SDLK_w: toggle_audio_display(cur_stream); break; case SDLK_PAGEUP: incr = 600.0; goto do_seek; case SDLK_PAGEDOWN: incr = -600.0; goto do_seek; case SDLK_LEFT: incr = -10.0; goto do_seek; case SDLK_RIGHT: incr = 10.0; goto do_seek; case SDLK_UP: incr = 60.0; goto do_seek; case SDLK_DOWN: incr = -60.0; do_seek: if (seek_by_bytes) { if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) { pos = cur_stream->video_current_pos; } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) { pos = cur_stream->audio_pkt.pos; } else pos = avio_tell(cur_stream->ic->pb); if (cur_stream->ic->bit_rate) incr *= cur_stream->ic->bit_rate / 8.0; else incr *= 180000.0; pos += incr; stream_seek(cur_stream, pos, incr, 1); } else { pos = get_master_clock(cur_stream); if (isnan(pos)) pos = (double)cur_stream->seek_pos / AV_TIME_BASE; pos += incr; if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE) pos = cur_stream->ic->start_time / (double)AV_TIME_BASE; stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); } break; default: break; } break; case SDL_VIDEOEXPOSE: cur_stream->force_refresh = 1; break; case SDL_MOUSEBUTTONDOWN: if (exit_on_mousedown) { do_exit(cur_stream); break; } case SDL_MOUSEMOTION: if (cursor_hidden) { SDL_ShowCursor(1); cursor_hidden = 0; } cursor_last_shown = av_gettime(); if (event.type == SDL_MOUSEBUTTONDOWN) { x = event.button.x; } else { if (event.motion.state != SDL_PRESSED) break; x = event.motion.x; } if (seek_by_bytes || cur_stream->ic->duration <= 0) { uint64_t size = avio_size(cur_stream->ic->pb); stream_seek(cur_stream, size*x/cur_stream->width, 0, 1); } else { int64_t ts; int ns, hh, mm, ss; int tns, thh, tmm, tss; tns = cur_stream->ic->duration / 1000000LL; thh = tns / 3600; tmm = (tns % 3600) / 60; tss = (tns % 60); frac = x / cur_stream->width; ns = frac * tns; hh = ns / 3600; mm = (ns % 3600) / 60; ss = (ns % 60); fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, hh, mm, ss, thh, tmm, tss); ts = frac * cur_stream->ic->duration; if (cur_stream->ic->start_time != AV_NOPTS_VALUE) ts += cur_stream->ic->start_time; stream_seek(cur_stream, ts, 0, 0); } break; case SDL_VIDEORESIZE: screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0, SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL); screen_width = cur_stream->width = event.resize.w; screen_height = cur_stream->height = event.resize.h; cur_stream->force_refresh = 1; break; case SDL_QUIT: case FF_QUIT_EVENT: do_exit(cur_stream); break; case FF_ALLOC_EVENT: alloc_picture(event.user.data1); break; default: break; } } }