├── .gitignore ├── LICENSE ├── Makefile ├── README.md ├── auth.c ├── auth.h ├── client.c ├── client.h ├── common.h ├── extras └── raspimjpeg.py ├── streameye.c └── streameye.h /.gitignore: -------------------------------------------------------------------------------- 1 | *.o 2 | streameye 3 | test* 4 | .cproject 5 | .project 6 | .pydevproject 7 | *.mjpg 8 | images/ 9 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | 676 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | 2 | ifdef DEBUG 3 | CFLAGS = -Wall -pthread -g -D_GNU_SOURCE 4 | else 5 | CFLAGS = -Wall -pthread -O2 -D_GNU_SOURCE 6 | endif 7 | 8 | PREFIX = /usr/local 9 | 10 | all: streameye 11 | 12 | streameye.o: streameye.c streameye.h client.h common.h 13 | $(CC) $(CFLAGS) -c -o streameye.o streameye.c 14 | 15 | client.o: client.c client.h streameye.h common.h 16 | $(CC) $(CFLAGS) -c -o client.o client.c 17 | 18 | auth.o: auth.c auth.h common.h 19 | $(CC) $(CFLAGS) -c -o auth.o auth.c 20 | 21 | streameye: streameye.o client.o auth.o 22 | $(CC) $(CFLAGS) -o streameye streameye.o client.o auth.o $(LDFLAGS) 23 | 24 | install: streameye 25 | cp streameye $(PREFIX)/bin 26 | 27 | clean: 28 | rm -f *.o 29 | rm -f streameye 30 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ## streamEye 2 | 3 | *streamEye* is a simple MJPEG streamer for Linux. It acts as an HTTP server and is capable of serving multiple simultaneous clients. 4 | 5 | It will feed the JPEGs read at input to all connected clients, in a MJPEG stream. The JPEG frames at input may be delimited by a given separator. 6 | In the absence of a separator, *streamEye* will autodetect all JPEG frames. 7 | 8 | ## Installation 9 | 10 | *streamEye* was tested on various Linux machines, but may work just fine on other platforms. 11 | Assuming your machine has `git`, `gcc` and `make` installed, just type the following commands to compile and install: 12 | 13 | git clone https://github.com/ccrisan/streameye.git 14 | cd streameye 15 | make 16 | sudo make install 17 | 18 | ## Usage 19 | 20 | Usage: ` | streameye [options]` 21 | Available options: 22 | 23 | * `-d` - debug mode, increased log verbosity 24 | * `-h` - print this help text 25 | * `-l` - listen only on localhost interface 26 | * `-p port` - tcp port to listen on (defaults to 8080) 27 | * `-q` - quiet mode, log only errors 28 | * `-s separator` - a separator between jpeg frames received at input (will autodetect jpeg frame starts by default) 29 | * `-t timeout` - client read timeout, in seconds (defaults to 10) 30 | 31 | ## Examples 32 | 33 | The following shell script will serve the JPEG files in the current directory, in a loop, with 2 frames per second: 34 | 35 | while true; do 36 | for file in *.jpg; do 37 | cat $file 38 | echo -n "--separator--" 39 | sleep 0.5 40 | done 41 | done | streameye -s "--separator--" 42 | 43 | 44 | Most (if not all) usb webcams can output mjpeg natively without having to re-encode, so using ffmpeg try: 45 | 46 | 47 | ffmpeg -input_format mjpeg -video_size 640x480 -i /dev/video0 -c copy -f mjpeg - | streameye 48 | 49 | 50 | Which should stream your camera (assuming it's at `/dev/video0`), at 640x480 with the cameras default framerate. 51 | 52 | 53 | if you would like ffmpeg to be quiet try: 54 | 55 | 56 | ffmpeg -v quiet -input_format mjpeg -video_size 640x480 -i /dev/video0 -c copy -f mjpeg - | streameye 57 | 58 | 59 | you can also try: 60 | 61 | 62 | ffmpeg -f v4l2 -list_formats compressed -i /dev/video0 63 | 64 | 65 | which should return a list of output resolutions your camera supports in the mjpeg format 66 | 67 | 68 | [video4linux2,v4l2 @ 0x55c6a47d66c0] Compressed: mjpeg : \ 69 | Motion-JPEG : 640x480 160x120 176x144 320x240 432x240 352x288 640x360 800x448 864x480 \ 70 | 1024x576 800x600 960x720 1280x720 1600x896 1920x1080 71 | 72 | 73 | then you could pick a different resolution, like: 74 | 75 | 76 | ffmpeg -v quiet -input_format mjpeg -video_size 1920x1080 -i /dev/video0 -c copy -f mjpeg - | streameye 77 | 78 | 79 | Which should stream your camera (assuming it's at `/dev/video0`), at Full HD (1920x1080) 80 | 81 | 82 | if none of that works, you can have ffmpeg re-encode whatever video format is coming out of the camera into mjpeg, 83 | albeit proboably with higher latency and lower quality and/or framerate. 84 | 85 | 86 | ffmpeg -v quiet -i /dev/video0 -r 30 -s 640x480 -f mjpeg -qscale 5 - | streameye 87 | 88 | 89 | ## Extras 90 | 91 | ### raspimjpeg.py 92 | 93 | This script continuously captures JPEGs from a Raspberry PI's CSI camera and writes them to standard output. It works out-of-the-box on Raspbian. The following command will make a simple MJPEG streamer out of your Raspberry PI: 94 | 95 | raspimjpeg.py -w 640 -h 480 -r 15 | streameye 96 | 97 | Why not `raspivid` or `raspistill`? Well, at the time of writing `raspivid` doesn't output JPEGs and `raspistill` only works in *stills* mode. 98 | 99 | Why Python and not C? Because most of the stuff is done by the GPU, so the insignificant performance gain would not make it worth writing C code. And of course because [picamera](https://picamera.readthedocs.org/) is an amazing library. 100 | -------------------------------------------------------------------------------- /auth.c: -------------------------------------------------------------------------------- 1 | 2 | /* 3 | * Copyright (c) Calin Crisan 4 | * This file is part of streamEye. 5 | * 6 | * streamEye is free software: you can redistribute it and/or modify 7 | * it under the terms of the GNU General Public License as published by 8 | * the Free Software Foundation, either version 3 of the License, or 9 | * (at your option) any later version. 10 | 11 | * This program is distributed in the hope that it will be useful, 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | * GNU General Public License for more details. 15 | * 16 | * You should have received a copy of the GNU General Public License 17 | * along with this program. If not, see . 18 | */ 19 | 20 | #include 21 | #include 22 | #include 23 | 24 | #define BASE64_LENGTH(src_len) (4 * (((src_len) + 2) / 3)) 25 | 26 | #include "common.h" 27 | #include "auth.h" 28 | 29 | 30 | /* globals */ 31 | 32 | static int auth_mode = AUTH_OFF; 33 | static char *auth_username = NULL; 34 | static char *auth_password = NULL; 35 | static char *auth_realm = NULL; 36 | static char *auth_basic_hash = NULL; 37 | 38 | static const char *_MODE_STR[] = {"off", "basic"}; 39 | 40 | 41 | /* local functions */ 42 | 43 | static void base64_encode(const char *src, char *dest, int len); 44 | 45 | 46 | void set_auth(int mode, char *username, char *password, char *realm) { 47 | DEBUG("setting authentication mode to %s", _MODE_STR[mode]); 48 | 49 | auth_mode = mode; 50 | auth_username = strdup(username); 51 | auth_password = strdup(password); 52 | auth_realm = strdup(realm); 53 | 54 | auth_basic_hash = NULL; 55 | } 56 | 57 | int get_auth_mode() { 58 | return auth_mode; 59 | } 60 | 61 | char* get_auth_realm() { 62 | return auth_realm; 63 | } 64 | 65 | char *get_auth_basic_hash() { 66 | if (auth_basic_hash) { 67 | return auth_basic_hash; 68 | } 69 | 70 | DEBUG("computing basic auth hash"); 71 | 72 | char *userpass = malloc(strlen(auth_username) + strlen(auth_password) + 2); 73 | sprintf(userpass, "%s:%s", auth_username, auth_password); 74 | 75 | auth_basic_hash = malloc(BASE64_LENGTH(strlen(userpass)) + 1); 76 | base64_encode(userpass, auth_basic_hash, strlen(userpass)); 77 | 78 | return auth_basic_hash; 79 | } 80 | 81 | 82 | void base64_encode(const char *src, char *dest, int len) { 83 | static const char conv_table[64] = { 84 | 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 85 | 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 86 | 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 87 | 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 88 | 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 89 | 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 90 | 'w', 'x', 'y', 'z', '0', '1', '2', '3', 91 | '4', '5', '6', '7', '8', '9', '+', '/' 92 | }; 93 | 94 | int i; 95 | unsigned char * p = (unsigned char *) dest; 96 | 97 | /* transform 3x8 -> 4x6 bits */ 98 | for (i = 0; i < len; i += 3) { 99 | *p++ = conv_table[src[0] >> 2]; 100 | *p++ = conv_table[((src[0] & 3) << 4) + (src[1] >> 4)]; 101 | *p++ = conv_table[((src[1] & 0xf) << 2) + (src[2] >> 6)]; 102 | *p++ = conv_table[src[2] & 0x3f]; 103 | src += 3; 104 | } 105 | 106 | /* padding */ 107 | if (i == len + 1) { 108 | *(p - 1) = '='; 109 | } 110 | else if (i == len + 2) { 111 | *(p - 1) = *(p - 2) = '='; 112 | } 113 | 114 | *p = '\0'; 115 | } 116 | -------------------------------------------------------------------------------- /auth.h: -------------------------------------------------------------------------------- 1 | 2 | /* 3 | * Copyright (c) Calin Crisan 4 | * This file is part of streamEye. 5 | * 6 | * streamEye is free software: you can redistribute it and/or modify 7 | * it under the terms of the GNU General Public License as published by 8 | * the Free Software Foundation, either version 3 of the License, or 9 | * (at your option) any later version. 10 | 11 | * This program is distributed in the hope that it will be useful, 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | * GNU General Public License for more details. 15 | * 16 | * You should have received a copy of the GNU General Public License 17 | * along with this program. If not, see . 18 | */ 19 | 20 | #ifndef __AUTH_H 21 | #define __AUTH_H 22 | 23 | #define AUTH_OFF 0 24 | #define AUTH_BASIC 1 25 | 26 | 27 | void set_auth(int mode, char *username, char *password, char *realm); 28 | int get_auth_mode(); 29 | char * get_auth_realm(); 30 | char * get_auth_basic_hash(); 31 | 32 | #endif /* __AUTH_H */ 33 | -------------------------------------------------------------------------------- /client.c: -------------------------------------------------------------------------------- 1 | 2 | /* 3 | * Copyright (c) Calin Crisan 4 | * This file is part of streamEye. 5 | * 6 | * streamEye is free software: you can redistribute it and/or modify 7 | * it under the terms of the GNU General Public License as published by 8 | * the Free Software Foundation, either version 3 of the License, or 9 | * (at your option) any later version. 10 | 11 | * This program is distributed in the hope that it will be useful, 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | * GNU General Public License for more details. 15 | * 16 | * You should have received a copy of the GNU General Public License 17 | * along with this program. If not, see . 18 | */ 19 | 20 | #include 21 | #include 22 | #include 23 | #include 24 | #include 25 | #include 26 | #include 27 | #include 28 | #include 29 | #include 30 | #include 31 | #include 32 | 33 | #include "streameye.h" 34 | #include "common.h" 35 | #include "auth.h" 36 | 37 | 38 | const char *RESPONSE_BASIC_AUTH_HEADER_TEMPLATE = 39 | "HTTP/1.1 401 Not Authorized\r\n" 40 | "Server: streamEye/%s\r\n" 41 | "Connection: close\r\n" 42 | "WWW-Authenticate: Basic realm=\"%s\"\r\n"; 43 | 44 | const char *RESPONSE_OK_HEADER_TEMPLATE = 45 | "HTTP/1.1 200 OK\r\n" 46 | "Server: streamEye/%s\r\n" 47 | "Connection: close\r\n" 48 | "Max-Age: 0\r\n" 49 | "Expires: 0\r\n" 50 | "Cache-Control: no-cache, private\r\n" 51 | "Pragma: no-cache\r\n" 52 | "Content-Type: multipart/x-mixed-replace; boundary=" BOUNDARY_SEPARATOR "\r\n"; 53 | 54 | const char *MULTIPART_HEADER = 55 | "\r\n" BOUNDARY_SEPARATOR "\r\n" 56 | "Content-Type: image/jpeg\r\n" 57 | "Content-Length: "; 58 | 59 | 60 | static int read_request(client_t *client); 61 | static int write_to_client(client_t *client, char *buf, int size); 62 | static int write_response_ok_header(client_t *client); 63 | static int write_response_auth_basic_header(client_t *client); 64 | static int write_multipart_header(client_t *client, int jpeg_size); 65 | 66 | 67 | /* client handling */ 68 | 69 | int read_request(client_t *client) { 70 | char buf[REQ_BUF_LEN]; 71 | char *line_end, *header_mid; 72 | char *header_name, *header_value; 73 | char *auth_mode, *auth_basic_hash; 74 | char *strtok_ptr; 75 | int size, found, offs = 0; 76 | 77 | memset(buf, 0, REQ_BUF_LEN); 78 | 79 | while (running) { 80 | if (offs >= REQ_BUF_LEN) { 81 | ERROR_CLIENT(client, "request header too large"); 82 | return -1; 83 | } 84 | 85 | size = read(client->stream_fd, buf + offs, REQ_BUF_LEN - offs); 86 | if (size < 0) { 87 | if (errno == EAGAIN) { 88 | ERROR_CLIENT(client, "timeout reading from client"); 89 | return -1; 90 | } 91 | else if (errno == EINTR) { 92 | break; 93 | } 94 | else { 95 | ERRNO_CLIENT(client, "read() failed"); 96 | return -1; 97 | } 98 | } 99 | else if (size == 0) { 100 | ERROR_CLIENT(client, "connection closed"); 101 | return -1; 102 | } 103 | 104 | offs += size; 105 | 106 | line_end = strstr(buf, "\r\n\r\n"); 107 | if (line_end) { 108 | /* two new lines end the request */ 109 | line_end[4] = 0; 110 | break; 111 | } 112 | } 113 | 114 | DEBUG_CLIENT(client, "received request header"); 115 | 116 | offs = 0; 117 | while (running && (line_end = strstr(buf + offs, "\r\n"))) { 118 | if (offs == 0) { /* first request line */ 119 | found = sscanf(buf, "%9s %1023s %9s", client->method, client->uri, client->http_ver); 120 | if (found != 3) { 121 | ERROR_CLIENT(client, "invalid request line"); 122 | return -1; 123 | } 124 | 125 | DEBUG_CLIENT(client, "%s %s %s", client->method, client->uri, client->http_ver); 126 | } 127 | else { /* subsequent line, request header */ 128 | header_mid = strstr(buf + offs, ": "); 129 | if (header_mid && header_mid < line_end) { 130 | header_name = strndup(buf + offs, header_mid - buf - offs); 131 | header_mid += 1; /* skip ":" */ 132 | while (header_mid < line_end && *header_mid == ' ') { 133 | header_mid++; /* skip header value leading spaces */ 134 | } 135 | header_value = strndup(header_mid, line_end - header_mid); 136 | 137 | if (!strcmp(header_name, "Authorization")) { 138 | auth_mode = strtok_r(header_value, " ", &strtok_ptr); 139 | if (!strcmp(auth_mode, "Basic")) { 140 | DEBUG_CLIENT(client, "authorization header: Basic"); 141 | auth_basic_hash = strtok_r(NULL, " ", &strtok_ptr); 142 | if (auth_basic_hash) { 143 | client->auth_basic_hash = strdup(auth_basic_hash); 144 | } 145 | else { 146 | ERROR_CLIENT(client, "missing authorization hash"); 147 | } 148 | } 149 | else { 150 | ERROR_CLIENT(client, "unknown authorization header: %s", auth_mode); 151 | } 152 | } 153 | else { 154 | DEBUG_CLIENT(client, "header: %s: %s", header_name, header_value); 155 | } 156 | 157 | free(header_name); 158 | free(header_value); 159 | } 160 | } 161 | 162 | offs = line_end - buf + 2; 163 | } 164 | 165 | DEBUG_CLIENT(client, "request read"); 166 | 167 | return 0; 168 | } 169 | 170 | int write_to_client(client_t *client, char *buf, int size) { 171 | int written = write(client->stream_fd, buf, size); 172 | 173 | if (written < 0) { 174 | if (errno == EPIPE || errno == EINTR) { 175 | return 0; 176 | } 177 | else { 178 | ERRNO_CLIENT(client, "write() failed"); 179 | return -1; 180 | } 181 | } 182 | else if (written < size) { 183 | ERROR_CLIENT(client, "not all data could be written"); 184 | return -1; 185 | } 186 | 187 | return written; 188 | } 189 | 190 | int write_response_ok_header(client_t *client) { 191 | char *data = malloc(strlen(RESPONSE_OK_HEADER_TEMPLATE) + 16); 192 | sprintf(data, RESPONSE_OK_HEADER_TEMPLATE, STREAM_EYE_VERSION); 193 | 194 | int r = write_to_client(client, data, strlen(data)); 195 | free(data); 196 | 197 | return r; 198 | } 199 | 200 | int write_response_auth_basic_header(client_t *client) { 201 | char *realm = get_auth_realm(); 202 | char *data = malloc(strlen(RESPONSE_BASIC_AUTH_HEADER_TEMPLATE) + 16 + strlen(realm)); 203 | sprintf(data, RESPONSE_BASIC_AUTH_HEADER_TEMPLATE, STREAM_EYE_VERSION, realm); 204 | 205 | int r = write_to_client(client, data, strlen(data)); 206 | free(data); 207 | 208 | return r; 209 | } 210 | 211 | int write_multipart_header(client_t *client, int jpeg_size) { 212 | static int multipart_header_len = 0; 213 | if (!multipart_header_len) { 214 | multipart_header_len = strlen(MULTIPART_HEADER); 215 | } 216 | 217 | int written = write_to_client(client, (char *) MULTIPART_HEADER, multipart_header_len); 218 | if (written <= 0) { 219 | return written; 220 | } 221 | 222 | char size_str[16]; 223 | snprintf(size_str, 16, "%d\r\n\r\n", jpeg_size); 224 | 225 | return write_to_client(client, size_str, strlen(size_str)); 226 | } 227 | 228 | void handle_client(client_t *client) { 229 | DEBUG_CLIENT(client, "reading client request"); 230 | int result = read_request(client); 231 | if (result < 0) { 232 | ERROR_CLIENT(client, "failed to read client request"); 233 | cleanup_client(client); 234 | 235 | return; 236 | } 237 | 238 | if (get_auth_mode() == AUTH_BASIC) { 239 | if (!client->auth_basic_hash || strcmp(client->auth_basic_hash, get_auth_basic_hash())) { 240 | if (client->auth_basic_hash) { 241 | ERROR_CLIENT(client, "authentication error"); 242 | } 243 | else { 244 | DEBUG_CLIENT(client, "authentication required"); 245 | } 246 | result = write_response_auth_basic_header(client); 247 | if (result < 0) { 248 | ERROR_CLIENT(client, "failed to write response header"); 249 | } 250 | 251 | cleanup_client(client); 252 | 253 | return; 254 | } 255 | else { 256 | DEBUG_CLIENT(client, "authentication successful"); 257 | } 258 | } 259 | 260 | DEBUG_CLIENT(client, "writing response header"); 261 | result = write_response_ok_header(client); 262 | if (result < 0) { 263 | ERROR_CLIENT(client, "failed to write response header"); 264 | cleanup_client(client); 265 | 266 | return; 267 | } 268 | 269 | client->last_frame_time = get_now(); 270 | 271 | while (running) { 272 | if (pthread_mutex_lock(&jpeg_mutex)) { 273 | ERROR_CLIENT(client, "pthread_mutex_lock() failed"); 274 | break; 275 | } 276 | 277 | while (!client->jpeg_ready) { 278 | if (pthread_cond_wait(&jpeg_cond, &jpeg_mutex)) { 279 | ERROR_CLIENT(client, "pthread_mutex_wait() failed"); 280 | pthread_mutex_unlock(&jpeg_mutex); 281 | break; 282 | } 283 | } 284 | 285 | /* copy the jpeg buffer into the client's temporary buffer, 286 | * but first make sure there's enough space */ 287 | if (jpeg_size > client->jpeg_tmp_buf_max_size) { 288 | DEBUG_CLIENT(client, "temporary buffer increased to %d bytes", jpeg_size); 289 | client->jpeg_tmp_buf_max_size = jpeg_size; 290 | client->jpeg_tmp_buf = realloc(client->jpeg_tmp_buf, client->jpeg_tmp_buf_max_size); 291 | } 292 | 293 | client->jpeg_tmp_buf_size = jpeg_size; 294 | memcpy(client->jpeg_tmp_buf, jpeg_buf, client->jpeg_tmp_buf_size); 295 | 296 | if (pthread_mutex_unlock(&jpeg_mutex)) { 297 | ERROR_CLIENT(client, "pthread_mutex_unlock() failed"); 298 | } 299 | 300 | double now = get_now(); 301 | client->frame_int = client->frame_int * 0.7 + (now - client->last_frame_time) * 0.3; 302 | client->last_frame_time = now; 303 | DEBUG_CLIENT(client, "current fps: %.01lf", 1 / client->frame_int); 304 | 305 | /* clear the ready flag for this client */ 306 | client->jpeg_ready = 0; 307 | 308 | if (!running) { 309 | break; /* speeds up the shut down procedure a bit */ 310 | } 311 | 312 | DEBUG_CLIENT(client, "writing multipart header"); 313 | result = write_multipart_header(client, client->jpeg_tmp_buf_size); 314 | if (result < 0) { 315 | ERROR_CLIENT(client, "failed to write multipart header"); 316 | break; 317 | } 318 | else if (result == 0) { 319 | INFO_CLIENT(client, "connection closed"); 320 | break; 321 | } 322 | 323 | DEBUG_CLIENT(client, "writing jpeg data (%d bytes)", client->jpeg_tmp_buf_size); 324 | result = write_to_client(client, client->jpeg_tmp_buf, client->jpeg_tmp_buf_size); 325 | if (result < 0) { 326 | ERROR_CLIENT(client, "failed to write jpeg data"); 327 | break; 328 | } 329 | else if (result == 0) { 330 | INFO_CLIENT(client, "connection closed"); 331 | break; 332 | } 333 | } 334 | 335 | cleanup_client(client); 336 | } 337 | 338 | -------------------------------------------------------------------------------- /client.h: -------------------------------------------------------------------------------- 1 | 2 | /* 3 | * Copyright (c) Calin Crisan 4 | * This file is part of streamEye. 5 | * 6 | * streamEye is free software: you can redistribute it and/or modify 7 | * it under the terms of the GNU General Public License as published by 8 | * the Free Software Foundation, either version 3 of the License, or 9 | * (at your option) any later version. 10 | 11 | * This program is distributed in the hope that it will be useful, 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | * GNU General Public License for more details. 15 | * 16 | * You should have received a copy of the GNU General Public License 17 | * along with this program. If not, see . 18 | */ 19 | 20 | #ifndef __CLIENT_H 21 | #define __CLIENT_H 22 | 23 | typedef struct { 24 | int stream_fd; 25 | char addr[INET_ADDRSTRLEN]; 26 | int port; 27 | char method[10]; 28 | char http_ver[10]; 29 | char uri[1024]; 30 | char * auth_basic_hash; 31 | pthread_t thread; 32 | 33 | int jpeg_ready; 34 | char * jpeg_tmp_buf; 35 | int jpeg_tmp_buf_size; 36 | int jpeg_tmp_buf_max_size; 37 | 38 | double frame_int; 39 | double last_frame_time; 40 | } client_t; 41 | 42 | void handle_client(client_t *client); 43 | 44 | 45 | #endif /* __CLIENT_H */ 46 | -------------------------------------------------------------------------------- /common.h: -------------------------------------------------------------------------------- 1 | 2 | /* 3 | * Copyright (c) Calin Crisan 4 | * This file is part of streamEye. 5 | * 6 | * streamEye is free software: you can redistribute it and/or modify 7 | * it under the terms of the GNU General Public License as published by 8 | * the Free Software Foundation, either version 3 of the License, or 9 | * (at your option) any later version. 10 | 11 | * This program is distributed in the hope that it will be useful, 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | * GNU General Public License for more details. 15 | * 16 | * You should have received a copy of the GNU General Public License 17 | * along with this program. If not, see . 18 | */ 19 | 20 | #ifndef __COMMON_H 21 | #define __COMMON_H 22 | 23 | #include 24 | 25 | #define DEBUG(fmt, ...) if (log_level >= 2) fprintf(stderr, "%s: DEBUG: " fmt "\n", str_timestamp(), ##__VA_ARGS__) 26 | #define INFO(fmt, ...) if (log_level >= 1) fprintf(stderr, "%s: INFO : " fmt "\n", str_timestamp(), ##__VA_ARGS__) 27 | #define ERROR(fmt, ...) if (log_level >= 0) fprintf(stderr, "%s: ERROR: " fmt "\n", str_timestamp(), ##__VA_ARGS__) 28 | #define ERRNO(msg) ERROR("%s: %s", msg, strerror(errno)) 29 | #define DEBUG_CLIENT(client, fmt, ...) DEBUG("%s:%d: " fmt, client->addr, client->port, ##__VA_ARGS__) 30 | #define INFO_CLIENT(client, fmt, ...) INFO("%s:%d: " fmt, client->addr, client->port, ##__VA_ARGS__) 31 | #define ERROR_CLIENT(client, fmt, ...) ERROR("%s:%d: " fmt, client->addr, client->port, ##__VA_ARGS__) 32 | #define ERRNO_CLIENT(client, msg) ERROR_CLIENT(client, "%s: %s", msg, strerror(errno)) 33 | 34 | #define MIN(a, b) ((a) < (b) ? (a) : (b)) 35 | #define MAX(a, b) ((a) > (b) ? (a) : (b)) 36 | 37 | extern int log_level; 38 | extern char jpeg_buf[]; 39 | extern int jpeg_size; 40 | extern int running; 41 | extern pthread_cond_t jpeg_cond; 42 | extern pthread_mutex_t jpeg_mutex; 43 | 44 | 45 | char * str_timestamp(); 46 | double get_now(); 47 | 48 | 49 | #endif /* __COMMON_H */ 50 | -------------------------------------------------------------------------------- /extras/raspimjpeg.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | 3 | # Copyright (c) Calin Crisan 4 | # This file is part of streamEye. 5 | # 6 | # streamEye is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, either version 3 of the License, or 9 | # (at your option) any later version. 10 | # 11 | # This program is distributed in the hope that it will be useful, 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | # GNU General Public License for more details. 15 | # 16 | # You should have received a copy of the GNU General Public License 17 | # along with this program. If not, see . 18 | 19 | 20 | import argparse 21 | import io 22 | import logging 23 | import picamera 24 | import signal 25 | import sys 26 | import time 27 | 28 | 29 | VERSION = '0.8' 30 | 31 | options = None 32 | camera = None 33 | running = True 34 | 35 | def configure_signals(): 36 | def bye_handler(signal, frame): 37 | global running 38 | 39 | if running: 40 | logging.info('interrupt signal received, shutting down') 41 | running = False 42 | 43 | signal.signal(signal.SIGINT, bye_handler) 44 | signal.signal(signal.SIGTERM, bye_handler) 45 | 46 | 47 | def parse_options(): 48 | global options 49 | 50 | def colfx_arg(string): 51 | try: 52 | parts = string.split(':') 53 | u, v = int(parts[0]), int(parts[1]) 54 | if not (0 <= u <= 255) or not (0 <= v <= 255): 55 | raise Exception() 56 | 57 | return u, v 58 | 59 | except: 60 | raise argparse.ArgumentTypeError('invalid value') 61 | 62 | parser = argparse.ArgumentParser(add_help=False, 63 | usage='%(prog)s -w WIDTH -h HEIGHT -r FRAMERATE [options]', 64 | description='This program continuously captures JPEGs from the CSI camera and writes them to standard output.') 65 | 66 | parser.add_argument('-w', '--width', help='capture (streaming) width, in pixels (64 to 3280, required)', 67 | type=int, dest='width', required=False) 68 | parser.add_argument('-h', '--height', help='capture (streaming) height, in pixels (64 to 2464, required)', 69 | type=int, dest='height', required=False) 70 | parser.add_argument('-r', '--framerate', help='number of frames per second (1 to 30, required)', 71 | type=float, dest='framerate', required=False) 72 | parser.add_argument('-q', '--quality', help='jpeg quality factor (1 to 100, defaults to 50)', 73 | type=int, dest='quality', default=50) 74 | parser.add_argument('-3d', '--stereo', help='Stereoscopic mode (none, side-by-side, top-bottom)', 75 | type=str, dest='stereo_mode', default='none') 76 | 77 | parser.add_argument('-p', '--preview', help='enable camera preview to HDMI port', 78 | action='store_true', dest='preview', default=False) 79 | parser.add_argument('--preview-width', help='preview width, in pixels (64 to 3280, if different from capture width)', 80 | type=int, dest='preview_width', default=False) 81 | parser.add_argument('--preview-height', help='preview height, in pixels (64 to 2464, if different from capture height)', 82 | type=int, dest='preview_height', default=False) 83 | 84 | parser.add_argument('--vflip', help='flip image vertically', 85 | action='store_true', dest='vflip', default=False) 86 | parser.add_argument('--hflip', help='flip image horizontally', 87 | action='store_true', dest='hflip', default=False) 88 | parser.add_argument('--rotation', help='rotate image', 89 | type=int, dest='rotation', default=0, choices=(0, 90, 180, 270)) 90 | parser.add_argument('--zoom', help='zoom to (x,y,w,h), defaults to 0.0,0.0,1.0,1.0', 91 | type=str, dest='zoom') 92 | 93 | parser.add_argument('--brightness', help='image brightness (0 to 100, defaults to 50)', 94 | type=int, dest='brightness', default=50) 95 | parser.add_argument('--contrast', help='image contrast (-100 to 100, defaults to 0)', 96 | type=int, default=0) 97 | parser.add_argument('--saturation', help='image saturation (-100 to 100, defaults to 0)', 98 | type=int, dest='saturation', default=0) 99 | parser.add_argument('--sharpness', help='image sharpness (-100 to 100, defaults to 0)', 100 | type=int, dest='sharpness', default=0) 101 | 102 | parser.add_argument('--iso', help='capture ISO (100 to 800)', 103 | type=int, dest='iso', default=None) 104 | parser.add_argument('--ev', help='exposure compensation (-25 to 25, defaults to 0)', 105 | type=int, dest='ev', default=0) 106 | parser.add_argument('--shutter', help='shutter speed, in microseconds (0 to 6000000)', 107 | type=int, dest='shutter', default=None) 108 | 109 | parser.add_argument('--exposure', help='exposure mode', 110 | type=str, dest='exposure', default=None, 111 | choices=('off', 'auto', 'night', 'nightpreview', 'backlight', 'spotlight', 'sports', 'snow', 112 | 'beach', 'verylong', 'fixedfps', 'antishake', 'fireworks')) 113 | parser.add_argument('--awb', help='set automatic white balance', 114 | type=str, dest='awb', default=None, 115 | choices=('off', 'auto', 'sunlight', 'cloudy', 'shade', 'tungsten', 'fluorescent', 'incandescent', 'flash', 'horizon', 'greyworld')) 116 | parser.add_argument('--metering', help='metering mode', 117 | type=str, dest='metering', default=None, 118 | choices=('average', 'spot', 'backlit', 'matrix')) 119 | parser.add_argument('--drc', help='dynamic range compression', 120 | type=str, dest='drc', default=None, 121 | choices=('off', 'low', 'medium', 'high')) 122 | parser.add_argument('--vstab', help='turn on video stabilization', 123 | action='store_true', dest='vstab', default=False) 124 | parser.add_argument('--denoise', help='enable image denoising', 125 | action='store_true', dest='denoise', default=False) 126 | 127 | parser.add_argument('--imxfx', help='image effect', 128 | type=str, dest='imxfx', default='none', 129 | choices=('none', 'negative', 'solarize', 'sketch', 'denoise', 'emboss', 'oilpaint', 'hatch', 'gpen', 'pastel', 130 | 'watercolor', 'film', 'blur', 'saturation', 'colorswap', 'washedout', 'posterise', 'colorpoint', 131 | 'colorbalance', 'cartoon', 'deinterlace1', 'deinterlace2')) 132 | parser.add_argument('--colfx', help='color effect (U:V format, 0 to 255, e.g. 128:128)', 133 | type=colfx_arg, dest='colfx', default=None) 134 | 135 | parser.add_argument('-s', '--stills', help='use stills mode instead of video mode (considerably slower)', 136 | action='store_true', dest='stills', default=False) 137 | parser.add_argument('-d', '--debug', help='debug mode, increase verbosity', 138 | action='store_true', dest='debug', default=False) 139 | parser.add_argument('--help', help='show this help message and exit', 140 | action='help', default=argparse.SUPPRESS) 141 | parser.add_argument('-v', '--version', 142 | action='version', default=argparse.SUPPRESS) 143 | 144 | parser._optionals.title = 'Available options' 145 | parser.version = '%(prog)s ' + VERSION 146 | 147 | options = parser.parse_args() 148 | 149 | if not options.preview_width: 150 | options.preview_width = options.width 151 | if not options.preview_height: 152 | options.preview_height = options.height 153 | 154 | def validate_zoom(zoom): 155 | zoom = zoom.split(',') 156 | if len(zoom) != 4: 157 | return 158 | 159 | try: 160 | zoom = [float(z) for z in zoom] 161 | 162 | except: 163 | return 164 | 165 | for z in zoom: 166 | if z < 0 or z > 1: 167 | return 168 | 169 | return zoom 170 | 171 | def validate_option(name, min=None, max=None, required=False): 172 | value = getattr(options, name, None) 173 | 174 | if value is None: 175 | if required: 176 | return 'a value is required' 177 | 178 | else: 179 | return 180 | 181 | if (None not in [min, max]) and not (min <= value <= max): 182 | return 'must be between %(min)s and %(max)s' % {'min': min, 'max': max} 183 | 184 | def validate_or_exit(name, **kwargs): 185 | msg = validate_option(name, **kwargs) 186 | if msg: 187 | parser.print_usage(sys.stderr) 188 | sys.stderr.write('%(prog)s: error: option %(name)s: %(msg)s\n' % { 189 | 'prog': parser.prog, 190 | 'name': name, 191 | 'msg': msg}) 192 | 193 | sys.exit(-1) 194 | 195 | if options.zoom: 196 | options.zoom = validate_zoom(options.zoom) 197 | if not options.zoom: 198 | parser.print_usage(sys.stderr) 199 | sys.stderr.write('%(prog)s: error: invalid zoom option\n' % {'prog': parser.prog}) 200 | 201 | sys.exit(-1) 202 | 203 | validate_or_exit('width', min=64, max=3280, required=True) 204 | validate_or_exit('height', min=64, max=2464, required=True) 205 | validate_or_exit('framerate', min=0.1, max=90, required=True) 206 | validate_or_exit('quality', min=1, max=100) 207 | 208 | validate_or_exit('preview_width', min=64, max=3280, required=False) 209 | validate_or_exit('preview_height', min=64, max=2464, required=False) 210 | 211 | validate_or_exit('brightness', min=0, max=100) 212 | validate_or_exit('contrast', min=-100, max=100) 213 | validate_or_exit('saturation', min=-100, max=100) 214 | validate_or_exit('sharpness', min=-100, max=100) 215 | validate_or_exit('iso', min=100, max=800) 216 | validate_or_exit('ev', min=-25, max=25) 217 | validate_or_exit('shutter', min=0, max=6000000) 218 | 219 | 220 | def init_camera(): 221 | global camera 222 | 223 | logging.debug('initializing camera') 224 | 225 | logging.debug('using resolution %dx%d' % (options.width, options.height)) 226 | camera = picamera.PiCamera(resolution=(options.width, options.height), stereo_mode=options.stereo_mode) 227 | 228 | logging.debug('using framerate = %d' % options.framerate) 229 | camera.framerate = options.framerate 230 | 231 | logging.debug('using vflip = %s' % str(options.vflip).lower()) 232 | camera.vflip = options.vflip 233 | 234 | logging.debug('using hflip = %s' % str(options.hflip).lower()) 235 | camera.hflip = options.hflip 236 | 237 | logging.debug('using rotation = %d' % options.rotation) 238 | camera.rotation = options.rotation 239 | 240 | if options.zoom: 241 | logging.debug('using zoom = (%.2f, %.2f, %.2f, %.2f)' % tuple(options.zoom)) 242 | camera.zoom = options.zoom 243 | 244 | logging.debug('using brightness = %d' % options.brightness) 245 | camera.brightness = options.brightness 246 | 247 | logging.debug('using contrast = %d' % options.contrast) 248 | camera.contrast = options.contrast 249 | 250 | logging.debug('using saturation = %d' % options.saturation) 251 | camera.saturation = options.saturation 252 | 253 | logging.debug('using sharpness = %d' % options.sharpness) 254 | camera.sharpness = options.sharpness 255 | 256 | if options.iso is not None: 257 | logging.debug('using iso = %d' % options.iso) 258 | camera.iso = options.iso 259 | 260 | if options.shutter is not None: 261 | logging.debug('using shutter speed = %d' % options.shutter) 262 | camera.shutter_speed = options.shutter 263 | 264 | logging.debug('using exposure compensation = %d' % options.ev) 265 | camera.exposure_compensation = options.ev 266 | 267 | if options.exposure is not None: 268 | logging.debug('using exposure mode = %s' % options.exposure) 269 | camera.exposure_mode = options.exposure 270 | 271 | if options.awb is not None: 272 | logging.debug('using awb mode = %s' % options.awb) 273 | camera.awb_mode = options.awb 274 | 275 | if options.metering is not None: 276 | logging.debug('using metering mode = %s' % options.metering) 277 | camera.meter_mode = options.metering 278 | 279 | if options.drc is not None: 280 | logging.debug('using drc strength = %s' % options.drc) 281 | camera.drc_strength = options.drc 282 | 283 | logging.debug('using video stabilization = %s' % str(options.vstab).lower()) 284 | camera.video_stabilization = options.vstab 285 | 286 | logging.debug('using denoise = %s' % str(options.denoise).lower()) 287 | camera.image_denoise = options.denoise 288 | camera.video_denoise = options.denoise 289 | 290 | if options.imxfx is not None: 291 | logging.debug('using image effect = %s' % options.imxfx) 292 | camera.image_effect = options.imxfx 293 | 294 | if options.colfx is not None: 295 | logging.debug('using color effect = %s' % (options.colfx,)) 296 | camera.color_effects = options.colfx 297 | 298 | if options.preview: 299 | logging.debug('enabling preview %dx%d' % (options.preview_width, options.preview_height)) 300 | camera.start_preview(resolution=(options.preview_width, options.preview_height)) 301 | 302 | logging.debug('camera initialized') 303 | 304 | if sys.version_info.major >= 3: 305 | my_stdout = sys.stdout.buffer 306 | else: 307 | my_stdout = sys.stdout 308 | 309 | def streams_iter(): 310 | while running: 311 | yield my_stdout 312 | sys.stdout.flush() 313 | 314 | 315 | def run(): 316 | logging.debug('starting capture') 317 | camera.capture_sequence(streams_iter(), format='jpeg', 318 | use_video_port=not options.stills, thumbnail=None, quality=options.quality) 319 | 320 | 321 | if __name__ == '__main__': 322 | #configure_signals() this doesn't seem to work and I don't really know why 323 | parse_options() 324 | 325 | logging.basicConfig(filename=None, level=logging.DEBUG if options.debug else logging.INFO, 326 | format='%(asctime)s: %(levelname)5s: %(message)s', datefmt='%Y-%m-%d %H:%M:%S') 327 | 328 | logging.info('raspimjpeg.py %s' % VERSION) 329 | logging.info('hello!') 330 | init_camera() 331 | run() 332 | logging.info('bye!') 333 | 334 | -------------------------------------------------------------------------------- /streameye.c: -------------------------------------------------------------------------------- 1 | 2 | /* 3 | * Copyright (c) Calin Crisan 4 | * This file is part of streamEye. 5 | * 6 | * streamEye is free software: you can redistribute it and/or modify 7 | * it under the terms of the GNU General Public License as published by 8 | * the Free Software Foundation, either version 3 of the License, or 9 | * (at your option) any later version. 10 | 11 | * This program is distributed in the hope that it will be useful, 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | * GNU General Public License for more details. 15 | * 16 | * You should have received a copy of the GNU General Public License 17 | * along with this program. If not, see . 18 | */ 19 | 20 | #include 21 | #include 22 | #include 23 | #include 24 | #include 25 | #include 26 | #include 27 | #include 28 | #include 29 | #include 30 | #include 31 | #include 32 | #include 33 | 34 | #include "common.h" 35 | #include "streameye.h" 36 | #include "auth.h" 37 | 38 | 39 | /* locals */ 40 | 41 | static int client_timeout = DEF_CLIENT_TIMEOUT; 42 | static int max_clients = 0; 43 | static int tcp_port = 0; 44 | static int listen_localhost = 0; 45 | static char *input_separator = NULL; 46 | static client_t **clients = NULL; 47 | static int num_clients = 0; 48 | 49 | 50 | /* globals */ 51 | 52 | int log_level = 1; /* 0 - quiet, 1 - info, 2 - debug */ 53 | char jpeg_buf[JPEG_BUF_LEN]; 54 | int jpeg_size = 0; 55 | int running = 1; 56 | pthread_cond_t jpeg_cond; 57 | pthread_mutex_t jpeg_mutex; 58 | pthread_mutex_t clients_mutex; 59 | 60 | 61 | /* local functions */ 62 | 63 | static int init_server(); 64 | static client_t * wait_for_client(int socket_fd); 65 | static void print_help(); 66 | 67 | 68 | /* server socket */ 69 | 70 | int init_server() { 71 | int socket_fd = socket(AF_INET, SOCK_STREAM, 0); 72 | if (socket_fd < 0) { 73 | ERRNO("socket() failed"); 74 | return -1; 75 | } 76 | 77 | int tr = 1; 78 | if (setsockopt(socket_fd, SOL_SOCKET, SO_REUSEADDR, &tr, sizeof(tr)) < 0) { 79 | ERRNO("setsockopt() failed"); 80 | return -1; 81 | } 82 | 83 | struct sockaddr_in server_addr; 84 | server_addr.sin_family = AF_INET; 85 | if (listen_localhost) { 86 | server_addr.sin_addr.s_addr = inet_addr("127.0.0.1"); 87 | } 88 | else { 89 | server_addr.sin_addr.s_addr = INADDR_ANY; 90 | } 91 | server_addr.sin_port = htons(tcp_port); 92 | 93 | if (bind(socket_fd, (struct sockaddr *) &server_addr, sizeof(server_addr)) < 0) { 94 | ERRNO("bind() failed"); 95 | close(socket_fd); 96 | return -1; 97 | } 98 | 99 | if (listen(socket_fd, 5) < 0) { 100 | ERRNO("listen() failed"); 101 | close(socket_fd); 102 | return -1; 103 | } 104 | 105 | if (fcntl(socket_fd, F_SETFL, O_NONBLOCK) < 0) { 106 | ERRNO("fcntl() failed"); 107 | close(socket_fd); 108 | return -1; 109 | } 110 | 111 | return socket_fd; 112 | } 113 | 114 | client_t *wait_for_client(int socket_fd) { 115 | struct sockaddr_in client_addr; 116 | unsigned int client_len = sizeof(client_addr); 117 | 118 | /* wait for a connection */ 119 | int stream_fd = accept(socket_fd, (struct sockaddr *) &client_addr, &client_len); 120 | if (stream_fd < 0) { 121 | if (errno != EAGAIN && errno != EWOULDBLOCK) { 122 | ERRNO("accept() failed"); 123 | } 124 | 125 | return NULL; 126 | } 127 | 128 | /* set socket timeout */ 129 | struct timeval tv; 130 | 131 | tv.tv_sec = client_timeout; 132 | tv.tv_usec = 0; 133 | 134 | setsockopt(stream_fd, SOL_SOCKET, SO_RCVTIMEO, (char *) &tv, sizeof(struct timeval)); 135 | setsockopt(stream_fd, SOL_SOCKET, SO_SNDTIMEO, (char *) &tv, sizeof(struct timeval)); 136 | 137 | /* create client structure */ 138 | client_t *client = malloc(sizeof(client_t)); 139 | if (!client) { 140 | ERROR("malloc() failed"); 141 | return NULL; 142 | } 143 | 144 | memset(client, 0, sizeof(client_t)); 145 | 146 | client->stream_fd = stream_fd; 147 | inet_ntop(AF_INET, &client_addr.sin_addr.s_addr, client->addr, INET_ADDRSTRLEN); 148 | client->port = ntohs(client_addr.sin_port); 149 | 150 | INFO("new client connection from %s:%d", client->addr, client->port); 151 | 152 | return client; 153 | } 154 | 155 | void cleanup_client(client_t *client) { 156 | DEBUG_CLIENT(client, "cleaning up"); 157 | 158 | if (pthread_mutex_lock(&clients_mutex)) { 159 | ERROR("pthread_mutex_lock() failed"); 160 | } 161 | 162 | int i, j; 163 | for (i = 0; i < num_clients; i++) { 164 | if (clients[i] == client) { 165 | /* move all further entries back with one position */ 166 | for (j = i; j < num_clients - 1; j++) { 167 | clients[j] = clients[j + 1]; 168 | } 169 | 170 | break; 171 | } 172 | } 173 | 174 | close(client->stream_fd); 175 | if (client->auth_basic_hash) { 176 | free(client->auth_basic_hash); 177 | } 178 | if (client->jpeg_tmp_buf) { 179 | free(client->jpeg_tmp_buf); 180 | } 181 | free(client); 182 | 183 | clients = realloc(clients, sizeof(client_t *) * (--num_clients)); 184 | DEBUG("current clients: %d", num_clients); 185 | 186 | if (pthread_mutex_unlock(&clients_mutex)) { 187 | ERROR("pthread_mutex_unlock() failed"); 188 | } 189 | } 190 | 191 | 192 | /* main */ 193 | 194 | char *str_timestamp() { 195 | static __thread char s[20]; 196 | 197 | time_t t = time(NULL); 198 | struct tm *tmp = localtime(&t); 199 | 200 | strftime(s, sizeof(s), "%Y-%m-%d %H:%M:%S", tmp); 201 | 202 | return s; 203 | } 204 | 205 | void print_help() { 206 | fprintf(stderr, "\n"); 207 | fprintf(stderr, "streamEye %s\n\n", STREAM_EYE_VERSION); 208 | fprintf(stderr, "Usage: | streameye [options]\n"); 209 | fprintf(stderr, "Available options:\n"); 210 | fprintf(stderr, " -a off|basic HTTP authentication mode (defaults to off)\n"); 211 | fprintf(stderr, " -c user:pass:realm credentials for HTTP authentication\n"); 212 | fprintf(stderr, " -d debug mode, increased log verbosity\n"); 213 | fprintf(stderr, " -h print this help text\n"); 214 | fprintf(stderr, " -l listen only on localhost interface\n"); 215 | fprintf(stderr, " -m max_clients the maximal number of simultaneous clients (defaults to unlimited)\n"); 216 | fprintf(stderr, " -p port tcp port to listen on (defaults to %d)\n", DEF_TCP_PORT); 217 | fprintf(stderr, " -q quiet mode, log only errors\n"); 218 | fprintf(stderr, " -s separator a separator between jpeg frames received at input\n"); 219 | fprintf(stderr, " (will autodetect jpeg frame starts by default)\n"); 220 | fprintf(stderr, " -t timeout client read/write timeout, in seconds (defaults to %d)\n", DEF_CLIENT_TIMEOUT); 221 | fprintf(stderr, "\n"); 222 | } 223 | 224 | double get_now() { 225 | struct timeval tv; 226 | gettimeofday(&tv, NULL); 227 | return tv.tv_sec + tv.tv_usec / 1000000.0; 228 | } 229 | 230 | void bye_handler(int signal) { 231 | if (!running) { 232 | INFO("interrupt already received, ignoring signal"); 233 | return; 234 | } 235 | 236 | INFO("interrupt received, quitting"); 237 | running = 0; 238 | } 239 | 240 | int main(int argc, char *argv[]) { 241 | 242 | /* read command line arguments */ 243 | int c; 244 | char *err = NULL; 245 | char *p, *q; 246 | 247 | int auth_mode = AUTH_OFF; 248 | char *auth_username = NULL; 249 | char *auth_password = NULL; 250 | char *auth_realm = NULL; 251 | 252 | opterr = 0; 253 | while ((c = getopt(argc, argv, "a:c:dhlm:p:qs:t:")) != -1) { 254 | switch (c) { 255 | case 'a': /* authentication */ 256 | if (!strcmp(optarg, "basic")) { 257 | auth_mode = AUTH_BASIC; 258 | } 259 | break; 260 | 261 | case 'c': /* credentials */ 262 | p = q = optarg; 263 | while (*q && *q != ':') { 264 | q++; 265 | } 266 | auth_username = strndup(p, q - p); 267 | 268 | if (!*q) { 269 | ERROR("invalid credentials"); 270 | return -1; 271 | } 272 | p = q = q + 1; 273 | while (*q && *q != ':') { 274 | q++; 275 | } 276 | auth_password = strndup(p, q - p); 277 | 278 | if (!*q) { 279 | ERROR("invalid credentials"); 280 | return -1; 281 | } 282 | p = q = q + 1; 283 | while (*q && *q != ':') { 284 | q++; 285 | } 286 | auth_realm = strndup(p, q - p); 287 | 288 | break; 289 | 290 | case 'd': /* debug */ 291 | log_level = 2; 292 | break; 293 | 294 | case 'h': /* help */ 295 | print_help(); 296 | return 0; 297 | 298 | case 'l': /* listen on localhost */ 299 | listen_localhost = 1; 300 | break; 301 | 302 | case 'm': /* max clients */ 303 | max_clients = strtol(optarg, &err, 10); 304 | if (*err != 0) { 305 | ERROR("invalid clients number \"%s\"", optarg); 306 | return -1; 307 | } 308 | break; 309 | 310 | case 'p': /* tcp port */ 311 | tcp_port = strtol(optarg, &err, 10); 312 | if (*err != 0) { 313 | ERROR("invalid port \"%s\"", optarg); 314 | return -1; 315 | } 316 | break; 317 | 318 | case 'q': /* quiet */ 319 | log_level = 0; 320 | break; 321 | 322 | case 's': /* input separator */ 323 | input_separator = strdup(optarg); 324 | break; 325 | 326 | case 't': /* client timeout */ 327 | client_timeout = strtol(optarg, &err, 10); 328 | if (*err != 0) { 329 | ERROR("invalid client timeout \"%s\"", optarg); 330 | return -1; 331 | } 332 | break; 333 | 334 | case '?': 335 | ERROR("unknown or incomplete option \"-%c\"", optopt); 336 | return -1; 337 | 338 | default: 339 | print_help(); 340 | return -1; 341 | } 342 | } 343 | 344 | if (auth_mode) { 345 | if (!auth_username || !auth_password || !auth_realm) { 346 | ERROR("credentials are required when using authentication"); 347 | return -1; 348 | } 349 | 350 | set_auth(auth_mode, auth_username, auth_password, auth_realm); 351 | } 352 | 353 | if (!tcp_port) { 354 | tcp_port = DEF_TCP_PORT; 355 | } 356 | 357 | INFO("streamEye %s", STREAM_EYE_VERSION); 358 | INFO("hello!"); 359 | 360 | if (input_separator && strlen(input_separator) < 4) { 361 | INFO("the input separator supplied is very likely to appear in the actual frame data (consider a longer one)"); 362 | } 363 | 364 | /* signals */ 365 | DEBUG("installing signal handlers"); 366 | struct sigaction act; 367 | act.sa_handler = bye_handler; 368 | act.sa_flags = 0; 369 | sigemptyset(&act.sa_mask); 370 | 371 | if (sigaction(SIGINT, &act, NULL) < 0) { 372 | ERRNO("sigaction() failed"); 373 | return -1; 374 | } 375 | if (sigaction(SIGTERM, &act, NULL) < 0) { 376 | ERRNO("sigaction() failed"); 377 | return -1; 378 | } 379 | if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) { 380 | ERRNO("signal() failed"); 381 | return -1; 382 | } 383 | 384 | /* threading */ 385 | DEBUG("initializing thread synchronization"); 386 | if (pthread_cond_init(&jpeg_cond, NULL)) { 387 | ERROR("pthread_cond_init() failed"); 388 | return -1; 389 | } 390 | if (pthread_mutex_init(&jpeg_mutex, NULL)) { 391 | ERROR("pthread_mutex_init() failed"); 392 | return -1; 393 | } 394 | if (pthread_mutex_init(&clients_mutex, NULL)) { 395 | ERROR("pthread_mutex_init() failed"); 396 | return -1; 397 | } 398 | 399 | /* tcp server */ 400 | DEBUG("starting server"); 401 | int socket_fd = init_server(); 402 | if (socket_fd < 0) { 403 | ERROR("failed to start server"); 404 | return -1; 405 | } 406 | 407 | INFO("listening on %s:%d", listen_localhost ? "127.0.0.1" : "0.0.0.0", tcp_port); 408 | 409 | /* main loop */ 410 | char input_buf[INPUT_BUF_LEN]; 411 | char *sep = NULL; 412 | int size, rem_len = 0, i; 413 | 414 | double now, min_client_frame_int; 415 | double frame_int_adj; 416 | double frame_int = 0; 417 | double last_frame_time = get_now(); 418 | 419 | int auto_separator = 0; 420 | int input_separator_len; 421 | if (!input_separator) { 422 | auto_separator = 1; 423 | input_separator_len = 4; /* strlen(JPEG_START) + strlen(JPEG_END) */; 424 | input_separator = malloc(input_separator_len + 1); 425 | snprintf(input_separator, input_separator_len + 1, "%s%s", JPEG_END, JPEG_START); 426 | } 427 | else { 428 | input_separator_len = strlen(input_separator); 429 | } 430 | 431 | while (running) { 432 | size = read(STDIN_FILENO, input_buf, INPUT_BUF_LEN); 433 | if (size < 0) { 434 | if (errno == EINTR) { 435 | break; 436 | } 437 | 438 | ERRNO("input: read() failed"); 439 | return -1; 440 | } 441 | else if (size == 0) { 442 | DEBUG("input: end of stream"); 443 | running = 0; 444 | break; 445 | } 446 | 447 | if (size > JPEG_BUF_LEN - 1 - jpeg_size) { 448 | ERROR("input: jpeg size too large, discarding buffer"); 449 | jpeg_size = 0; 450 | continue; 451 | } 452 | 453 | if (pthread_mutex_lock(&jpeg_mutex)) { 454 | ERROR("pthread_mutex_lock() failed"); 455 | return -1; 456 | } 457 | 458 | /* clear the ready flag for all clients, 459 | * as we start building the next frame */ 460 | for (i = 0; i < num_clients; i++) { 461 | clients[i]->jpeg_ready = 0; 462 | } 463 | 464 | if (rem_len) { 465 | /* copy the remainder of data from the previous iteration back to the jpeg buffer */ 466 | memmove(jpeg_buf, sep + (auto_separator ? 2 /* strlen(JPEG_END) */ : input_separator_len), rem_len); 467 | jpeg_size = rem_len; 468 | } 469 | 470 | memcpy(jpeg_buf + jpeg_size, input_buf, size); 471 | jpeg_size += size; 472 | 473 | /* look behind at most 2 * INPUT_BUF_LEN for a separator */ 474 | sep = (char *) memmem(jpeg_buf + jpeg_size - MIN(2 * INPUT_BUF_LEN, jpeg_size), MIN(2 * INPUT_BUF_LEN, jpeg_size), 475 | input_separator, input_separator_len); 476 | 477 | if (sep) { /* found a separator, jpeg frame is ready */ 478 | if (auto_separator) { 479 | rem_len = jpeg_size - (sep - jpeg_buf) - 2 /* strlen(JPEG_START) */; 480 | jpeg_size = sep - jpeg_buf + 2 /* strlen(JPEG_END) */; 481 | } 482 | else { 483 | rem_len = jpeg_size - (sep - jpeg_buf) - input_separator_len; 484 | jpeg_size = sep - jpeg_buf; 485 | } 486 | 487 | DEBUG("input: jpeg buffer ready with %d bytes", jpeg_size); 488 | 489 | /* set the ready flag and notify all client threads about it */ 490 | for (i = 0; i < num_clients; i++) { 491 | clients[i]->jpeg_ready = 1; 492 | } 493 | if (pthread_cond_broadcast(&jpeg_cond)) { 494 | ERROR("pthread_cond_broadcast() failed"); 495 | return -1; 496 | } 497 | 498 | now = get_now(); 499 | frame_int = frame_int * 0.7 + (now - last_frame_time) * 0.3; 500 | last_frame_time = now; 501 | } 502 | else { 503 | rem_len = 0; 504 | } 505 | 506 | if (pthread_mutex_unlock(&jpeg_mutex)) { 507 | ERROR("pthread_mutex_unlock() failed"); 508 | return -1; 509 | } 510 | 511 | if (sep) { 512 | DEBUG("current fps: %.01lf", 1 / frame_int); 513 | 514 | if (num_clients) { 515 | min_client_frame_int = clients[0]->frame_int; 516 | for (i = 0; i < num_clients; i++) { 517 | if (clients[i]->frame_int < min_client_frame_int) { 518 | min_client_frame_int = clients[i]->frame_int; 519 | } 520 | } 521 | 522 | frame_int_adj = (min_client_frame_int - frame_int) * 1000000; 523 | if (frame_int_adj > 0) { 524 | DEBUG("input frame int.: %.0lf us, client frame int.: %.0lf us, frame int. adjustment: %.0lf us", 525 | frame_int * 1000000, min_client_frame_int * 1000000, frame_int_adj); 526 | 527 | /* sleep between 1000 and 50000 us, depending on the frame interval adjustment */ 528 | usleep(MAX(1000, MIN(4 * frame_int_adj, 50000))); 529 | } 530 | } 531 | 532 | /* check for incoming clients; 533 | * placing this code inside the if (sep) will simply 534 | * reduce the number of times we check for incoming clients, 535 | * with no particular relation to the frame separator we've just found */ 536 | client_t *client = NULL; 537 | 538 | if (!max_clients || num_clients < max_clients) { 539 | client = wait_for_client(socket_fd); 540 | } 541 | 542 | if (client) { 543 | if (pthread_create(&client->thread, NULL, (void *(*) (void *)) handle_client, client)) { 544 | ERROR("pthread_create() failed"); 545 | return -1; 546 | } 547 | 548 | if (pthread_mutex_lock(&clients_mutex)) { 549 | ERROR("pthread_mutex_lock() failed"); 550 | return -1; 551 | } 552 | 553 | clients = realloc(clients, sizeof(client_t *) * (num_clients + 1)); 554 | clients[num_clients++] = client; 555 | 556 | DEBUG("current clients: %d", num_clients); 557 | 558 | if (pthread_mutex_unlock(&clients_mutex)) { 559 | ERROR("pthread_mutex_unlock() failed"); 560 | return -1; 561 | } 562 | } 563 | } 564 | } 565 | 566 | running = 0; 567 | 568 | DEBUG("closing server"); 569 | close(socket_fd); 570 | 571 | DEBUG("waiting for clients to finish"); 572 | for (i = 0; i < num_clients; i++) { 573 | clients[i]->jpeg_ready = 1; 574 | } 575 | if (pthread_cond_broadcast(&jpeg_cond)) { 576 | ERROR("pthread_cond_broadcast() failed"); 577 | return -1; 578 | } 579 | 580 | for (i = 0; i < num_clients; i++) { 581 | pthread_join(clients[i]->thread, NULL); 582 | } 583 | 584 | if (pthread_mutex_destroy(&clients_mutex)) { 585 | ERROR("pthread_mutex_destroy() failed"); 586 | return -1; 587 | } 588 | if (pthread_mutex_destroy(&jpeg_mutex)) { 589 | ERROR("pthread_mutex_destroy() failed"); 590 | return -1; 591 | } 592 | if (pthread_cond_destroy(&jpeg_cond)) { 593 | ERROR("pthread_cond_destroy() failed"); 594 | return -1; 595 | } 596 | 597 | INFO("bye!"); 598 | 599 | return 0; 600 | } 601 | -------------------------------------------------------------------------------- /streameye.h: -------------------------------------------------------------------------------- 1 | 2 | /* 3 | * Copyright (c) Calin Crisan 4 | * This file is part of streamEye. 5 | * 6 | * streamEye is free software: you can redistribute it and/or modify 7 | * it under the terms of the GNU General Public License as published by 8 | * the Free Software Foundation, either version 3 of the License, or 9 | * (at your option) any later version. 10 | 11 | * This program is distributed in the hope that it will be useful, 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | * GNU General Public License for more details. 15 | * 16 | * You should have received a copy of the GNU General Public License 17 | * along with this program. If not, see . 18 | */ 19 | 20 | #ifndef __STREAMEYE_H 21 | #define __STREAMEYE_H 22 | 23 | #include "client.h" 24 | 25 | #define STREAM_EYE_VERSION "0.9" 26 | 27 | #define BOUNDARY_SEPARATOR "--FrameBoundary" 28 | 29 | #define DEF_CLIENT_TIMEOUT 10 30 | #define DEF_TCP_PORT 8080 31 | 32 | #define REQ_BUF_LEN 4096 33 | #define INPUT_BUF_LEN 1024 * 1024 /* 1MB */ 34 | #define JPEG_BUF_LEN 1024 * 1024 * 10 /* 10MB */ 35 | #define JPEG_START "\xFF\xD8" 36 | #define JPEG_END "\xFF\xD9" 37 | 38 | void cleanup_client(client_t *client); 39 | 40 | 41 | #endif /* __STREAMEYE_H */ 42 | --------------------------------------------------------------------------------