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Add --audio-bit-rate option

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Add an option to configure the audio bit-rate.
This commit is contained in:
Romain Vimont 2023-02-18 18:32:43 +01:00
parent 637683ed7a
commit 4dbb7aa685
10 changed files with 46 additions and 6 deletions
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6
app/scrcpy.1
View file

@ -19,6 +19,12 @@ provides display and control of Android devices connected on USB (or over TCP/IP
.B \-\-always\-on\-top
Make scrcpy window always on top (above other windows).
.TP
.BI "\-\-audio\-bit\-rate " value
Encode the audio at the given bit\-rate, expressed in bits/s. Unit suffixes are supported: '\fBK\fR' (x1000) and '\fBM\fR' (x1000000).
Default is 196K (196000).
.TP
.BI "\-b, \-\-bit\-rate " value
Encode the video at the given bit\-rate, expressed in bits/s. Unit suffixes are supported: '\fBK\fR' (x1000) and '\fBM\fR' (x1000000).

14
app/src/cli.c
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@ -59,6 +59,7 @@
#define OPT_NO_POWER_ON 1039
#define OPT_CODEC 1040
#define OPT_NO_AUDIO 1041
#define OPT_AUDIO_BIT_RATE 1042
struct sc_option {
char shortopt;
@ -99,6 +100,14 @@ static const struct sc_option options[] = {
.longopt = "always-on-top",
.text = "Make scrcpy window always on top (above other windows).",
},
{
.longopt_id = OPT_AUDIO_BIT_RATE,
.longopt = "audio-bit-rate",
.argdesc = "value",
.text = "Encode the audio at the given bit-rate, expressed in bits/s. "
"Unit suffixes are supported: 'K' (x1000) and 'M' (x1000000).\n"
"Default is 196K (196000).",
},
{
.shortopt = 'b',
.longopt = "bit-rate",
@ -1424,6 +1433,11 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
return false;
}
break;
case OPT_AUDIO_BIT_RATE:
if (!parse_bit_rate(optarg, &opts->audio_bit_rate)) {
return false;
}
break;
case OPT_CROP:
opts->crop = optarg;
break;

1
app/src/options.c
View file

@ -28,6 +28,7 @@ const struct scrcpy_options scrcpy_options_default = {
},
.max_size = 0,
.bit_rate = 0,
.audio_bit_rate = 0,
.max_fps = 0,
.lock_video_orientation = SC_LOCK_VIDEO_ORIENTATION_UNLOCKED,
.rotation = 0,

1
app/src/options.h
View file

@ -109,6 +109,7 @@ struct scrcpy_options {
struct sc_shortcut_mods shortcut_mods;
uint16_t max_size;
uint32_t bit_rate;
uint32_t audio_bit_rate;
uint16_t max_fps;
enum sc_lock_video_orientation lock_video_orientation;
uint8_t rotation;

1
app/src/scrcpy.c
View file

@ -357,6 +357,7 @@ scrcpy(struct scrcpy_options *options) {
.tunnel_port = options->tunnel_port,
.max_size = options->max_size,
.bit_rate = options->bit_rate,
.audio_bit_rate = options->audio_bit_rate,
.max_fps = options->max_fps,
.lock_video_orientation = options->lock_video_orientation,
.control = options->control,

2
app/src/server.c
View file

@ -221,6 +221,8 @@ execute_server(struct sc_server *server,
}
if (!params->audio) {
ADD_PARAM("audio=false");
} else if (params->audio_bit_rate) {
ADD_PARAM("audio_bit_rate=%" PRIu32, params->audio_bit_rate);
}
if (params->codec != SC_CODEC_H264) {
ADD_PARAM("codec=%s", sc_server_get_codec_name(params->codec));

1
app/src/server.h
View file

@ -34,6 +34,7 @@ struct sc_server_params {
uint16_t tunnel_port;
uint16_t max_size;
uint32_t bit_rate;
uint32_t audio_bit_rate;
uint16_t max_fps;
int8_t lock_video_orientation;
bool control;

11
server/src/main/java/com/genymobile/scrcpy/AudioEncoder.java
View file

@ -40,12 +40,12 @@ public final class AudioEncoder {
private static final String MIMETYPE = MediaFormat.MIMETYPE_AUDIO_OPUS;
private static final int SAMPLE_RATE = 48000;
private static final int CHANNELS = 2;
private static final int BIT_RATE = 196000;
private static final int BUFFER_MS = 15; // milliseconds
private static final int BUFFER_SIZE = SAMPLE_RATE * CHANNELS * BUFFER_MS / 1000;
private final Streamer streamer;
private final int bitRate;
private AudioRecord recorder;
private MediaCodec mediaCodec;
@ -63,8 +63,9 @@ public final class AudioEncoder {
private boolean ended;
public AudioEncoder(Streamer streamer) {
public AudioEncoder(Streamer streamer, int bitRate) {
this.streamer = streamer;
this.bitRate = bitRate;
}
private static AudioFormat createAudioFormat() {
@ -89,10 +90,10 @@ public final class AudioEncoder {
return builder.build();
}
private static MediaFormat createFormat() {
private static MediaFormat createFormat(int bitRate) {
MediaFormat format = new MediaFormat();
format.setString(MediaFormat.KEY_MIME, MIMETYPE);
format.setInteger(MediaFormat.KEY_BIT_RATE, BIT_RATE);
format.setInteger(MediaFormat.KEY_BIT_RATE, bitRate);
format.setInteger(MediaFormat.KEY_CHANNEL_COUNT, CHANNELS);
format.setInteger(MediaFormat.KEY_SAMPLE_RATE, SAMPLE_RATE);
return format;
@ -208,7 +209,7 @@ public final class AudioEncoder {
mediaCodecThread = new HandlerThread("AudioEncoder");
mediaCodecThread.start();
MediaFormat format = createFormat();
MediaFormat format = createFormat(bitRate);
mediaCodec.setCallback(new EncoderCallback(), new Handler(mediaCodecThread.getLooper()));
mediaCodec.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);

9
server/src/main/java/com/genymobile/scrcpy/Options.java
View file

@ -12,6 +12,7 @@ public class Options {
private int maxSize;
private VideoCodec codec = VideoCodec.H264;
private int bitRate = 8000000;
private int audioBitRate = 196000;
private int maxFps;
private int lockVideoOrientation = -1;
private boolean tunnelForward;
@ -82,6 +83,14 @@ public class Options {
this.bitRate = bitRate;
}
public int getAudioBitRate() {
return audioBitRate;
}
public void setAudioBitRate(int audioBitRate) {
this.audioBitRate = audioBitRate;
}
public int getMaxFps() {
return maxFps;
}

6
server/src/main/java/com/genymobile/scrcpy/Server.java
View file

@ -112,7 +112,7 @@ public final class Server {
AudioEncoder audioEncoder = null;
if (audio) {
Streamer audioStreamer = new Streamer(connection.getAudioFd(), AudioCodec.OPUS, options.getSendCodecId(), options.getSendFrameMeta());
audioEncoder = new AudioEncoder(audioStreamer);
audioEncoder = new AudioEncoder(audioStreamer, options.getAudioBitRate());
audioEncoder.start();
}
@ -210,6 +210,10 @@ public final class Server {
int bitRate = Integer.parseInt(value);
options.setBitRate(bitRate);
break;
case "audio_bit_rate":
int audioBitRate = Integer.parseInt(value);
options.setAudioBitRate(audioBitRate);
break;
case "max_fps":
int maxFps = Integer.parseInt(value);
options.setMaxFps(maxFps);