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Add option --max-fps

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Add an option to limit the capture frame rate. It only works for devices
with Android >= 10.

Fixes <https://github.com/Genymobile/scrcpy/issues/488>
This commit is contained in:
Romain Vimont
2019-11-17 22:07:19 +01:00
parent fb976816f9
commit 1d97d7213d
10 changed files with 87 additions and 12 deletions
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33
app/src/main.c
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@@ -50,6 +50,10 @@ static void usage(const char *arg0) {
" -h, --help\n"
" Print this help.\n"
"\n"
" --max-fps value\n"
" Limit the frame rate of screen capture (only supported on\n"
" devices with Android >= 10).\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"
@@ -269,6 +273,28 @@ parse_max_size(char *optarg, uint16_t *max_size) {
return true;
}
static bool
parse_max_fps(const char *optarg, uint16_t *max_fps) {
char *endptr;
if (*optarg == '\0') {
LOGE("Max FPS parameter is empty");
return false;
}
long value = strtol(optarg, &endptr, 0);
if (*endptr != '\0') {
LOGE("Invalid max FPS: %s", optarg);
return false;
}
if (value & ~0xffff) {
// in practice, it should not be higher than 60
LOGE("Max FPS value is invalid: %ld", value);
return false;
}
*max_fps = (uint16_t) value;
return true;
}
static bool
parse_window_position(char *optarg, int16_t *position) {
char *endptr;
@@ -374,6 +400,7 @@ guess_record_format(const char *filename) {
#define OPT_WINDOW_WIDTH 1009
#define OPT_WINDOW_HEIGHT 1010
#define OPT_WINDOW_BORDERLESS 1011
#define OPT_MAX_FPS 1012
static bool
parse_args(struct args *args, int argc, char *argv[]) {
@@ -383,6 +410,7 @@ parse_args(struct args *args, int argc, char *argv[]) {
{"crop", required_argument, NULL, OPT_CROP},
{"fullscreen", no_argument, NULL, 'f'},
{"help", no_argument, NULL, 'h'},
{"max-fps", required_argument, NULL, OPT_MAX_FPS},
{"max-size", required_argument, NULL, 'm'},
{"no-control", no_argument, NULL, 'n'},
{"no-display", no_argument, NULL, 'N'},
@@ -438,6 +466,11 @@ parse_args(struct args *args, int argc, char *argv[]) {
case 'h':
args->help = true;
break;
case OPT_MAX_FPS:
if (!parse_max_fps(optarg, &opts->max_fps)) {
return false;
}
break;
case 'm':
if (!parse_max_size(optarg, &opts->max_size)) {
return false;