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vtv-player.c - vtv-tools - virtual terminal video tools |
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git clone git://bitreich.org/vtv-tools git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/vtv-tools (git://bitreich.org) |
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README |
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LICENSE |
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--- |
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vtv-player.c (1695B) |
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--- |
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1 // Copyright 2023 Troels Henriksen <athas@sigkill.dk> |
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2 // |
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3 // See LICENSE file for licensing information. |
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4 |
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5 #include <stdio.h> |
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6 #include <stdlib.h> |
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7 #include <unistd.h> |
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8 #include <errno.h> |
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9 #include <string.h> |
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10 #include <signal.h> |
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11 |
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12 #include "vtv.h" |
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13 |
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14 void hide_cursor() { printf("\033[?25l"); } |
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15 void show_cursor() { printf("\033[?25h"); } |
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16 void move(int x, int y) { printf("\033[%d;%dH", y, x); } |
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17 void home() { printf("\033[;H"); } |
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18 void clear_screen() { printf("\033[2J"); } |
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19 void clear_line() { printf("\033[2K"); } |
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20 void def() { printf("\033[0m"); } |
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21 void reset() { printf("\033c"); } |
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22 |
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23 void sigint(int unused) { |
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24 (void)unused; |
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25 reset(); |
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26 exit(0); |
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27 } |
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28 |
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29 int main(int argc, char* argv[]) { |
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30 int fps = 20; |
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31 int frame_lines = 25; |
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32 const char *vtv_file; |
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33 struct vtv* vtv; |
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34 |
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35 while (1) { |
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36 switch (getopt(argc, argv, "r:h:")) { |
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37 case 'r': |
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38 fps = atoi(optarg); |
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39 break; |
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40 case 'h': |
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41 frame_lines = atoi(optarg); |
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42 break; |
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43 case -1: |
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44 if (optind == argc-1) { |
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45 vtv_file = argv[optind]; |
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46 goto done; |
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47 } |
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48 // fallthrough |
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49 default: |
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50 fprintf(stderr, "Usage: %s [-r INT] FILE\n", argv[0]); |
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51 exit(1); |
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52 } |
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53 } |
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54 done: |
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55 vtv = vtv_read_from_file(vtv_file); |
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56 if (vtv == NULL) { |
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57 fprintf(stderr, "%s: cannot read %s: %s\n", |
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58 argv[0], vtv_file, strerror(errno)); |
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59 exit(1); |
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60 } |
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61 |
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62 int num_frames = vtv->num_lines / frame_lines; |
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63 |
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64 hide_cursor(); |
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65 clear_screen(); |
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66 |
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67 int frame = 0; |
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68 signal(SIGINT, sigint); |
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69 |
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70 while (1) { |
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71 useconds_t nap = 1000000.0 / fps; |
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72 frame = (frame+1) % num_frames; |
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73 home(); |
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74 vtv_show_frame(vtv, stdout, frame, frame_lines, |
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75 "\033[0m MISSING LINE"); |
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76 usleep(nap); |
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77 } |
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78 def(); |
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79 } |
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