diff options
Diffstat (limited to 'swaygrab/main.c')
-rw-r--r-- | swaygrab/main.c | 298 |
1 files changed, 0 insertions, 298 deletions
diff --git a/swaygrab/main.c b/swaygrab/main.c deleted file mode 100644 index 1b699bb9..00000000 --- a/swaygrab/main.c +++ /dev/null | |||
@@ -1,298 +0,0 @@ | |||
1 | #define _XOPEN_SOURCE 700 | ||
2 | #define _POSIX_C_SOURCE 199309L | ||
3 | #include <stdio.h> | ||
4 | #include <stdbool.h> | ||
5 | #include <stdlib.h> | ||
6 | #include <string.h> | ||
7 | #include <getopt.h> | ||
8 | #include <unistd.h> | ||
9 | #include <stdint.h> | ||
10 | #include <math.h> | ||
11 | #include <time.h> | ||
12 | #include <sys/wait.h> | ||
13 | #include <json-c/json.h> | ||
14 | #include "log.h" | ||
15 | #include "ipc-client.h" | ||
16 | #include "util.h" | ||
17 | #include "swaygrab/json.h" | ||
18 | |||
19 | void sway_terminate(int exit_code) { | ||
20 | exit(exit_code); | ||
21 | } | ||
22 | |||
23 | void grab_and_apply_magick(const char *file, const char *payload, | ||
24 | int socketfd, int raw) { | ||
25 | uint32_t len = strlen(payload); | ||
26 | char *pixels = ipc_single_command(socketfd, | ||
27 | IPC_SWAY_GET_PIXELS, payload, &len); | ||
28 | uint32_t *u32pixels = (uint32_t *)(pixels + 1); | ||
29 | uint32_t width = u32pixels[0]; | ||
30 | uint32_t height = u32pixels[1]; | ||
31 | len -= 9; | ||
32 | pixels += 9; | ||
33 | |||
34 | if (width == 0 || height == 0) { | ||
35 | // indicates geometry was clamped by WLC because it was outside of the output's area | ||
36 | json_object *obj = json_tokener_parse(payload); | ||
37 | json_object *output; | ||
38 | json_object_object_get_ex(obj, "output", &output); | ||
39 | const char *name = json_object_get_string(output); | ||
40 | json_object_put(obj); | ||
41 | sway_abort("Unknown output %s.", name); | ||
42 | } | ||
43 | |||
44 | if (raw) { | ||
45 | fwrite(pixels, 1, len, stdout); | ||
46 | fflush(stdout); | ||
47 | free(pixels - 9); | ||
48 | return; | ||
49 | } | ||
50 | |||
51 | char size[10 + 1 + 10 + 2 + 1]; // int32_t are max 10 digits | ||
52 | sprintf(size, "%dx%d+0", width, height); | ||
53 | |||
54 | pid_t child; | ||
55 | int fd[2]; | ||
56 | pipe(fd); | ||
57 | |||
58 | if ((child = fork()) < 0) { | ||
59 | sway_log(L_ERROR, "Swaygrab failed to fork."); | ||
60 | exit(EXIT_FAILURE); | ||
61 | } else if (child != 0) { | ||
62 | close(fd[0]); | ||
63 | write(fd[1], pixels, len); | ||
64 | close(fd[1]); | ||
65 | free(pixels - 9); | ||
66 | waitpid(child, NULL, 0); | ||
67 | } else { | ||
68 | close(fd[1]); | ||
69 | if (dup2(fd[0], 0) != 0) { | ||
70 | sway_log(L_ERROR, "Could not fdup the pipe"); | ||
71 | } | ||
72 | close(fd[0]); | ||
73 | execlp("convert", "convert", "-depth", "8", "-size", size, "rgba:-", "-flip", file, NULL); | ||
74 | sway_log(L_ERROR, "Swaygrab could not run convert."); | ||
75 | exit(EXIT_FAILURE); | ||
76 | } | ||
77 | } | ||
78 | |||
79 | void grab_and_apply_movie_magic(const char *file, const char *payload, | ||
80 | int socketfd, int raw, int framerate) { | ||
81 | if (raw) { | ||
82 | sway_log(L_ERROR, "Raw capture data is not yet supported. Proceeding with ffmpeg normally."); | ||
83 | } | ||
84 | |||
85 | uint32_t len = strlen(payload); | ||
86 | char *pixels = ipc_single_command(socketfd, | ||
87 | IPC_SWAY_GET_PIXELS, payload, &len); | ||
88 | uint32_t *u32pixels = (uint32_t *)(pixels + 1); | ||
89 | uint32_t width = u32pixels[0]; | ||
90 | uint32_t height = u32pixels[1]; | ||
91 | pixels += 9; | ||
92 | |||
93 | if (width == 0 || height == 0) { | ||
94 | // indicates geometry was clamped by WLC because it was outside of the output's area | ||
95 | json_object *obj = json_tokener_parse(payload); | ||
96 | json_object *output; | ||
97 | json_object_object_get_ex(obj, "output", &output); | ||
98 | const char *name = json_object_get_string(output); | ||
99 | json_object_put(obj); | ||
100 | sway_abort("Unknown output %s.", name); | ||
101 | } | ||
102 | |||
103 | char *ffmpeg_opts = getenv("SWAYGRAB_FFMPEG_OPTS"); | ||
104 | if(!ffmpeg_opts) { | ||
105 | ffmpeg_opts = ""; | ||
106 | } | ||
107 | |||
108 | const char *fmt = "ffmpeg %s -f rawvideo -framerate %d " | ||
109 | "-video_size %dx%d -pixel_format argb " | ||
110 | "-i pipe:0 -r %d -vf vflip %s"; | ||
111 | char *cmd = malloc(strlen(fmt) - 8 /*args*/ | ||
112 | + strlen(ffmpeg_opts) + numlen(width) + numlen(height) | ||
113 | + numlen(framerate) * 2 + strlen(file) + 1); | ||
114 | sprintf(cmd, fmt, ffmpeg_opts, framerate, width, height, framerate, file); | ||
115 | |||
116 | long ns = (long)(1000000000 * (1.0 / framerate)); | ||
117 | struct timespec start, finish, ts; | ||
118 | ts.tv_sec = 0; | ||
119 | |||
120 | FILE *f = popen(cmd, "w"); | ||
121 | fwrite(pixels, 1, len, f); | ||
122 | free(pixels - 9); | ||
123 | int sleep = 0; | ||
124 | while (sleep != -1) { | ||
125 | clock_gettime(CLOCK_MONOTONIC, &start); | ||
126 | len = strlen(payload); | ||
127 | pixels = ipc_single_command(socketfd, | ||
128 | IPC_SWAY_GET_PIXELS, payload, &len); | ||
129 | pixels += 9; | ||
130 | len -= 9; | ||
131 | |||
132 | fwrite(pixels, 1, len, f); | ||
133 | |||
134 | free(pixels - 9); | ||
135 | clock_gettime(CLOCK_MONOTONIC, &finish); | ||
136 | ts.tv_nsec = ns; | ||
137 | double fts = (double)finish.tv_sec + 1.0e-9*finish.tv_nsec; | ||
138 | double sts = (double)start.tv_sec + 1.0e-9*start.tv_nsec; | ||
139 | long diff = (fts - sts) * 1000000000; | ||
140 | ts.tv_nsec = ns - diff; | ||
141 | if (ts.tv_nsec < 0) { | ||
142 | ts.tv_nsec = 0; | ||
143 | } | ||
144 | sleep = nanosleep(&ts, NULL); | ||
145 | } | ||
146 | fflush(f); | ||
147 | |||
148 | fclose(f); | ||
149 | free(cmd); | ||
150 | } | ||
151 | |||
152 | char *default_filename(const char *extension) { | ||
153 | int ext_len = strlen(extension); | ||
154 | int len = 28 + ext_len; // format: "2015-12-17-180040_swaygrab.ext" | ||
155 | char *filename = malloc(len * sizeof(char)); | ||
156 | time_t t = time(NULL); | ||
157 | |||
158 | struct tm *lt = localtime(&t); | ||
159 | strftime(filename, len, "%Y-%m-%d-%H%M%S_swaygrab.", lt); | ||
160 | strncat(filename, extension, ext_len); | ||
161 | |||
162 | return filename; | ||
163 | } | ||
164 | |||
165 | int main(int argc, char **argv) { | ||
166 | static int capture = 0, raw = 0; | ||
167 | char *socket_path = NULL; | ||
168 | char *output = NULL; | ||
169 | int framerate = 30; | ||
170 | bool grab_focused = false; | ||
171 | |||
172 | init_log(L_INFO); | ||
173 | |||
174 | static struct option long_options[] = { | ||
175 | {"help", no_argument, NULL, 'h'}, | ||
176 | {"capture", no_argument, NULL, 'c'}, | ||
177 | {"output", required_argument, NULL, 'o'}, | ||
178 | {"version", no_argument, NULL, 'v'}, | ||
179 | {"socket", required_argument, NULL, 's'}, | ||
180 | {"raw", no_argument, NULL, 'r'}, | ||
181 | {"rate", required_argument, NULL, 'R'}, | ||
182 | {"focused", no_argument, NULL, 'f'}, | ||
183 | {0, 0, 0, 0} | ||
184 | }; | ||
185 | |||
186 | const char *usage = | ||
187 | "Usage: swaygrab [options] [file]\n" | ||
188 | "\n" | ||
189 | " -h, --help Show help message and quit.\n" | ||
190 | " -c, --capture Capture video.\n" | ||
191 | " -o, --output <output> Output source.\n" | ||
192 | " -v, --version Show the version number and quit.\n" | ||
193 | " -s, --socket <socket> Use the specified socket.\n" | ||
194 | " -R, --rate <rate> Specify framerate (default: 30)\n" | ||
195 | " -r, --raw Write raw rgba data to stdout.\n" | ||
196 | " -f, --focused Grab the focused container.\n"; | ||
197 | |||
198 | int c; | ||
199 | while (1) { | ||
200 | int option_index = 0; | ||
201 | c = getopt_long(argc, argv, "hco:vs:R:rf", long_options, &option_index); | ||
202 | if (c == -1) { | ||
203 | break; | ||
204 | } | ||
205 | switch (c) { | ||
206 | case 'f': | ||
207 | grab_focused = true; | ||
208 | break; | ||
209 | case 's': // Socket | ||
210 | socket_path = strdup(optarg); | ||
211 | break; | ||
212 | case 'r': | ||
213 | raw = 1; | ||
214 | break; | ||
215 | case 'o': // output | ||
216 | output = strdup(optarg); | ||
217 | break; | ||
218 | case 'c': | ||
219 | capture = 1; | ||
220 | break; | ||
221 | case 'R': // Frame rate | ||
222 | framerate = atoi(optarg); | ||
223 | break; | ||
224 | case 'v': | ||
225 | fprintf(stdout, "sway version " SWAY_VERSION "\n"); | ||
226 | exit(EXIT_SUCCESS); | ||
227 | break; | ||
228 | default: | ||
229 | fprintf(stderr, "%s", usage); | ||
230 | exit(EXIT_FAILURE); | ||
231 | } | ||
232 | } | ||
233 | |||
234 | if (!socket_path) { | ||
235 | socket_path = get_socketpath(); | ||
236 | if (!socket_path) { | ||
237 | sway_abort("Unable to retrieve socket path"); | ||
238 | } | ||
239 | } | ||
240 | |||
241 | char *file = NULL; | ||
242 | if (raw) { | ||
243 | if (optind >= argc + 1) { | ||
244 | sway_abort("Invalid usage. See `man swaygrab` %d %d", argc, optind); | ||
245 | } | ||
246 | } else if (optind < argc) { | ||
247 | file = strdup(argv[optind]); | ||
248 | } | ||
249 | |||
250 | int socketfd = ipc_open_socket(socket_path); | ||
251 | free(socket_path); | ||
252 | |||
253 | init_json_tree(socketfd); | ||
254 | |||
255 | struct wlc_geometry *geo; | ||
256 | |||
257 | if (grab_focused) { | ||
258 | output = get_focused_output(); | ||
259 | json_object *con = get_focused_container(); | ||
260 | json_object *name; | ||
261 | json_object_object_get_ex(con, "name", &name); | ||
262 | geo = get_container_geometry(con); | ||
263 | free(con); | ||
264 | } else { | ||
265 | if (!output) { | ||
266 | output = get_focused_output(); | ||
267 | } | ||
268 | geo = get_container_geometry(get_output_container(output)); | ||
269 | // the geometry of the output in the get_tree response is relative to a global (0, 0). | ||
270 | // we need it to be relative to itself, so set origin to (0, 0) always. | ||
271 | geo->origin.x = 0; | ||
272 | geo->origin.y = 0; | ||
273 | } | ||
274 | |||
275 | const char *payload = create_payload(output, geo); | ||
276 | |||
277 | free(geo); | ||
278 | |||
279 | if (!file) { | ||
280 | if (!capture) { | ||
281 | file = default_filename("png"); | ||
282 | } else { | ||
283 | file = default_filename("webm"); | ||
284 | } | ||
285 | } | ||
286 | |||
287 | if (!capture) { | ||
288 | grab_and_apply_magick(file, payload, socketfd, raw); | ||
289 | } else { | ||
290 | grab_and_apply_movie_magic(file, payload, socketfd, raw, framerate); | ||
291 | } | ||
292 | |||
293 | free_json_tree(); | ||
294 | free(output); | ||
295 | free(file); | ||
296 | close(socketfd); | ||
297 | return 0; | ||
298 | } | ||