Android/scrcpy
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scrcpy/app/src/main.c

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Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 23:32:29 +08:00
#include "scrcpy.h"
Use long command-line options In addition to the short form (e.g. "-p"), add the long form ("--port").
2018-02-01 17:46:42 +08:00
#include <getopt.h>
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
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#include <unistd.h>
#include <libavformat/avformat.h>
#include <SDL2/SDL.h>
#define DEFAULT_LOCAL_PORT 27183
Add bit-rate command-line option Add a command-line option (-b/--bit-rate) to customize the video bit-rate.
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#define DEFAULT_MAX_SIZE 0 // unlimited
#define DEFAULT_BIT_RATE 4000000 // 4Mbps
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
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struct args {
const char *serial;
Add --help Provide command-line help, with -h/--help option.
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SDL_bool help;
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
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Uint16 port;
Rename maximum_size to max_size The long option is --max-size, so for consistency, adapt the code accordingly.
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Uint16 max_size;
Add bit-rate command-line option Add a command-line option (-b/--bit-rate) to customize the video bit-rate.
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Uint32 bit_rate;
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
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};
Add --help Provide command-line help, with -h/--help option.
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static void usage(const char *arg0) {
fprintf(stderr,
"Usage: %s [options] [serial]\n"
"\n"
" serial\n"
" The device serial number. Mandatory only if several devices\n"
" are connected to adb.\n"
"\n"
"Options:\n"
"\n"
Add bit-rate command-line option Add a command-line option (-b/--bit-rate) to customize the video bit-rate.
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" -b, --bit-rate value\n"
" Encode the video at the given bit-rate, expressed in bits/s.\n"
" Unit suffixes are supported: 'K' (x1000) and 'M' (x1000000).\n"
" Default is %d.\n"
"\n"
Add --help Provide command-line help, with -h/--help option.
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" -h, --help\n"
" Print this help.\n"
"\n"
" -m, --max-size value\n"
" Limit both the width and height of the video to value. The\n"
" other dimension is computed so that the device aspect-ratio\n"
" is preserved.\n"
" Default is %d%s.\n"
"\n"
" -p, --port port\n"
" Set the TCP port the client listens on.\n"
" Default is %d.\n"
"\n"
"Shortcuts:\n"
"\n"
" Ctrl+f: switch fullscreen mode\n"
" Ctrl+g: resize window to 1:1 (pixel-perfect)\n"
" Ctrl+x: resize window to optimal size (remove black borders)\n"
"\n",
arg0,
Add bit-rate command-line option Add a command-line option (-b/--bit-rate) to customize the video bit-rate.
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DEFAULT_BIT_RATE,
Add --help Provide command-line help, with -h/--help option.
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DEFAULT_MAX_SIZE, DEFAULT_MAX_SIZE ? "" : " (unlimited)",
DEFAULT_LOCAL_PORT);
}
Use long command-line options In addition to the short form (e.g. "-p"), add the long form ("--port").
2018-02-01 17:46:42 +08:00
static int parse_args(struct args *args, int argc, char *argv[]) {
static const struct option long_options[] = {
Add --help Provide command-line help, with -h/--help option.
2018-02-01 18:44:09 +08:00
{"help", no_argument, NULL, 'h'},
Use long command-line options In addition to the short form (e.g. "-p"), add the long form ("--port").
2018-02-01 17:46:42 +08:00
{"port", required_argument, NULL, 'p'},
{"max-size", required_argument, NULL, 'm'},
Add bit-rate command-line option Add a command-line option (-b/--bit-rate) to customize the video bit-rate.
2018-02-01 23:36:50 +08:00
{"bit-rate", required_argument, NULL, 'b'},
Use long command-line options In addition to the short form (e.g. "-p"), add the long form ("--port").
2018-02-01 17:46:42 +08:00
{NULL, 0, NULL, 0 },
};
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 23:32:29 +08:00
int c;
Add bit-rate command-line option Add a command-line option (-b/--bit-rate) to customize the video bit-rate.
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while ((c = getopt_long(argc, argv, "hp:m:b:", long_options, NULL)) != -1) {
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 23:32:29 +08:00
switch (c) {
Add --help Provide command-line help, with -h/--help option.
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case 'h': {
args->help = SDL_TRUE;
break;
}
Indent switch blocks content For readability, indent "case" in switch blocks. Replace: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } } By: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } }
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case 'p': {
char *endptr;
Check empty string before strtol() There is no need to call strtol() if the input string is empty.
2018-02-01 23:31:59 +08:00
if (*optarg == '\0') {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Invalid port parameter is empty");
return -1;
}
Indent switch blocks content For readability, indent "case" in switch blocks. Replace: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } } By: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } }
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long value = strtol(optarg, &endptr, 0);
Check empty string before strtol() There is no need to call strtol() if the input string is empty.
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if (*endptr != '\0') {
Remove useless newlines in SDL_Log* Trailing new line is not necessary in SDL_Log* methods.
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Invalid port: %s", optarg);
Indent switch blocks content For readability, indent "case" in switch blocks. Replace: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } } By: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } }
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return -1;
}
if (value & ~0xffff) {
Remove useless newlines in SDL_Log* Trailing new line is not necessary in SDL_Log* methods.
2018-02-01 22:55:26 +08:00
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Port out of range: %ld", value);
Indent switch blocks content For readability, indent "case" in switch blocks. Replace: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } } By: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } }
2018-02-01 18:34:49 +08:00
return -1;
}
args->port = (Uint16) value;
break;
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 23:32:29 +08:00
}
Indent switch blocks content For readability, indent "case" in switch blocks. Replace: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } } By: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } }
2018-02-01 18:34:49 +08:00
case 'm': {
char *endptr;
Check empty string before strtol() There is no need to call strtol() if the input string is empty.
2018-02-01 23:31:59 +08:00
if (*optarg == '\0') {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Max size parameter is empty");
return -1;
}
Indent switch blocks content For readability, indent "case" in switch blocks. Replace: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } } By: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } }
2018-02-01 18:34:49 +08:00
long value = strtol(optarg, &endptr, 0);
Check empty string before strtol() There is no need to call strtol() if the input string is empty.
2018-02-01 23:31:59 +08:00
if (*endptr != '\0') {
Remove useless newlines in SDL_Log* Trailing new line is not necessary in SDL_Log* methods.
2018-02-01 22:55:26 +08:00
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Invalid max size: %s", optarg);
Indent switch blocks content For readability, indent "case" in switch blocks. Replace: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } } By: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } }
2018-02-01 18:34:49 +08:00
return -1;
}
if (value & ~0xffff) {
Remove useless newlines in SDL_Log* Trailing new line is not necessary in SDL_Log* methods.
2018-02-01 22:55:26 +08:00
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Max size must be between 0 and 65535: %ld", value);
Indent switch blocks content For readability, indent "case" in switch blocks. Replace: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } } By: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } }
2018-02-01 18:34:49 +08:00
return -1;
}
Rename maximum_size to max_size The long option is --max-size, so for consistency, adapt the code accordingly.
2018-02-01 19:18:06 +08:00
args->max_size = (Uint16) value;
Indent switch blocks content For readability, indent "case" in switch blocks. Replace: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } } By: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } }
2018-02-01 18:34:49 +08:00
break;
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 23:32:29 +08:00
}
Add bit-rate command-line option Add a command-line option (-b/--bit-rate) to customize the video bit-rate.
2018-02-01 23:36:50 +08:00
case 'b': {
char *endptr;
if (*optarg == '\0') {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Bit-rate parameter is empty");
return -1;
}
long value = strtol(optarg, &endptr, 0);
int mul = 1;
if (*endptr != '\0') {
if (optarg == endptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Invalid bit-rate: %s", optarg);
return -1;
}
if ((*endptr == 'M' || *endptr == 'm') && endptr[1] == '\0') {
mul = 1000000;
} else if ((*endptr == 'K' || *endptr == 'k') && endptr[1] == '\0') {
mul = 1000;
} else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Invalid bit-rate unit: %s", optarg);
return -1;
}
}
if (value < 0 || ((Uint32) -1) / mul < value) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Bitrate must be positive and less than 2^32: %s", optarg);
return -1;
}
args->bit_rate = (Uint32) value * mul;
break;
}
Indent switch blocks content For readability, indent "case" in switch blocks. Replace: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } } By: switch (x) { case 1: // ... case 2: // ... case 3: { // a local scope block int i = 42; // ... } }
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default:
// getopt prints the error message on stderr
Handle resized video stream Accept a parameter to limit the video size. For instance, with "-m 960", the great side of the video will be scaled down to 960 (if necessary), while the other side will be scaled down so that the aspect ratio is preserved. Both dimensions must be a multiple of 8, so black bands might be added, and the mouse positions must be computed accordingly.
2018-01-29 22:40:33 +08:00
return -1;
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 23:32:29 +08:00
}
}
int index = optind;
if (index < argc) {
args->serial = argv[index++];
}
if (index < argc) {
Remove useless newlines in SDL_Log* Trailing new line is not necessary in SDL_Log* methods.
2018-02-01 22:55:26 +08:00
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unexpected additional argument: %s", argv[index]);
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 23:32:29 +08:00
return -1;
}
return 0;
}
int main(int argc, char *argv[]) {
int res;
struct args args = {
.serial = NULL,
Add bit-rate command-line option Add a command-line option (-b/--bit-rate) to customize the video bit-rate.
2018-02-01 23:36:50 +08:00
.help = SDL_FALSE,
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
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.port = DEFAULT_LOCAL_PORT,
Add bit-rate command-line option Add a command-line option (-b/--bit-rate) to customize the video bit-rate.
2018-02-01 23:36:50 +08:00
.max_size = DEFAULT_MAX_SIZE,
.bit_rate = DEFAULT_BIT_RATE,
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 23:32:29 +08:00
};
if (parse_args(&args, argc, argv)) {
Add --help Provide command-line help, with -h/--help option.
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usage(argv[0]);
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
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return 1;
}
Add --help Provide command-line help, with -h/--help option.
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if (args.help) {
usage(argv[0]);
return 0;
}
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 23:32:29 +08:00
av_register_all();
if (avformat_network_init()) {
return 1;
}
SDL_LogSetAllPriority(SDL_LOG_PRIORITY_DEBUG);
Add bit-rate command-line option Add a command-line option (-b/--bit-rate) to customize the video bit-rate.
2018-02-01 23:36:50 +08:00
res = scrcpy(args.serial, args.port, args.max_size, args.bit_rate) ? 0 : 1;
Rename screen -> scrcpy -> main Rename scrcpy.c to main.c (this file handles the command line parsing), and screen.c to scrcpy.c (it exposes the entry point scrcpy()).
2018-01-23 23:32:29 +08:00
avformat_network_deinit(); // ignore failure
return res;
}
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