Accept --max-fps before Android 10
KEY_MAX_FPS_TO_ENCODER existed privately before Android 10: <https://github.com/Genymobile/scrcpy/issues/488#issuecomment-567321437>
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4 changed files with 11 additions and 9 deletions
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@ -137,12 +137,14 @@ scrcpy -b 2M # short version
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#### Limit frame rate
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On devices with Android >= 10, the capture frame rate can be limited:
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The capture frame rate can be limited:
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```bash
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scrcpy --max-fps 15
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```
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This is officially supported since Android 10, but may work on earlier versions.
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#### Crop
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The device screen may be cropped to mirror only part of the screen.
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@ -43,7 +43,7 @@ Print this help.
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.TP
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.BI "\-\-max\-fps " value
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Limit the framerate of screen capture (only supported on devices with Android >= 10).
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Limit the framerate of screen capture (officially supported since Android 10, but may work on earlier versions).
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.TP
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.BI "\-m, \-\-max\-size " value
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@ -42,8 +42,8 @@ scrcpy_print_usage(const char *arg0) {
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" Print this help.\n"
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"\n"
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" --max-fps value\n"
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" Limit the frame rate of screen capture (only supported on\n"
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" devices with Android >= 10).\n"
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" Limit the frame rate of screen capture (officially supported\n"
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" since Android 10, but may work on earlier versions).\n"
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"\n"
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" -m, --max-size value\n"
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" Limit both the width and height of the video to value. The\n"
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@ -19,6 +19,7 @@ public class ScreenEncoder implements Device.RotationListener {
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private static final int DEFAULT_I_FRAME_INTERVAL = 10; // seconds
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private static final int REPEAT_FRAME_DELAY_US = 100_000; // repeat after 100ms
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private static final String KEY_MAX_FPS_TO_ENCODER = "max-fps-to-encoder";
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private static final int NO_PTS = -1;
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@ -150,11 +151,10 @@ public class ScreenEncoder implements Device.RotationListener {
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// display the very first frame, and recover from bad quality when no new frames
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format.setLong(MediaFormat.KEY_REPEAT_PREVIOUS_FRAME_AFTER, REPEAT_FRAME_DELAY_US); // µs
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if (maxFps > 0) {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
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format.setFloat(MediaFormat.KEY_MAX_FPS_TO_ENCODER, maxFps);
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} else {
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Ln.w("Max FPS is only supported since Android 10, the option has been ignored");
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}
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// The key existed privately before Android 10:
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// <https://android.googlesource.com/platform/frameworks/base/+/625f0aad9f7a259b6881006ad8710adce57d1384%5E%21/>
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// <https://github.com/Genymobile/scrcpy/issues/488#issuecomment-567321437>
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format.setFloat(KEY_MAX_FPS_TO_ENCODER, maxFps);
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}
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return format;
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}
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