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Add PCM_DOUBLE and DSD format #2500

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Add PCM_DOUBLE and DSD format #2500

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21 changes: 15 additions & 6 deletions libraries/common/src/main/java/androidx/media3/common/C.java
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Original file line number Diff line number Diff line change
Expand Up @@ -168,10 +168,10 @@ private C() {}
* {@link #ENCODING_INVALID}, {@link #ENCODING_PCM_8BIT}, {@link #ENCODING_PCM_16BIT}, {@link
* #ENCODING_PCM_16BIT_BIG_ENDIAN}, {@link #ENCODING_PCM_24BIT}, {@link
* #ENCODING_PCM_24BIT_BIG_ENDIAN}, {@link #ENCODING_PCM_32BIT}, {@link
* #ENCODING_PCM_32BIT_BIG_ENDIAN}, {@link #ENCODING_PCM_FLOAT}, {@link #ENCODING_MP3}, {@link
* #ENCODING_AC3}, {@link #ENCODING_E_AC3}, {@link #ENCODING_E_AC3_JOC}, {@link #ENCODING_AC4},
* {@link #ENCODING_DTS}, {@link #ENCODING_DTS_HD}, {@link #ENCODING_DOLBY_TRUEHD} or {@link
* #ENCODING_OPUS}.
* #ENCODING_PCM_32BIT_BIG_ENDIAN}, {@link #ENCODING_PCM_FLOAT}, {@link #ENCODING_PCM_DOUBLE},
* {@link #ENCODING_MP3}, {@link #ENCODING_AC3}, {@link #ENCODING_E_AC3}, {@link
* #ENCODING_E_AC3_JOC}, {@link #ENCODING_AC4}, {@link #ENCODING_DTS}, {@link #ENCODING_DTS_HD},
* {@link #ENCODING_DOLBY_TRUEHD}, {@link #ENCODING_OPUS} or {@link #ENCODING_DSD}.
*/
@UnstableApi
@Documented
Expand All @@ -188,6 +188,7 @@ private C() {}
ENCODING_PCM_32BIT,
ENCODING_PCM_32BIT_BIG_ENDIAN,
ENCODING_PCM_FLOAT,
ENCODING_PCM_DOUBLE,
ENCODING_MP3,
ENCODING_AAC_LC,
ENCODING_AAC_HE_V1,
Expand All @@ -204,6 +205,7 @@ private C() {}
ENCODING_DOLBY_TRUEHD,
ENCODING_OPUS,
ENCODING_DTS_UHD_P2,
ENCODING_DSD,
})
public @interface Encoding {}

Expand All @@ -212,7 +214,7 @@ private C() {}
* {@link #ENCODING_INVALID}, {@link #ENCODING_PCM_8BIT}, {@link #ENCODING_PCM_16BIT}, {@link
* #ENCODING_PCM_16BIT_BIG_ENDIAN}, {@link #ENCODING_PCM_24BIT}, {@link
* #ENCODING_PCM_24BIT_BIG_ENDIAN}, {@link #ENCODING_PCM_32BIT}, {@link
* #ENCODING_PCM_32BIT_BIG_ENDIAN}, {@link #ENCODING_PCM_FLOAT}.
* #ENCODING_PCM_32BIT_BIG_ENDIAN}, {@link #ENCODING_PCM_FLOAT}, {@link #ENCODING_PCM_DOUBLE}.
*/
@UnstableApi
@Documented
Expand All @@ -228,7 +230,8 @@ private C() {}
ENCODING_PCM_24BIT_BIG_ENDIAN,
ENCODING_PCM_32BIT,
ENCODING_PCM_32BIT_BIG_ENDIAN,
ENCODING_PCM_FLOAT
ENCODING_PCM_FLOAT,
ENCODING_PCM_DOUBLE
})
public @interface PcmEncoding {}

Expand Down Expand Up @@ -259,6 +262,9 @@ private C() {}
/** See {@link AudioFormat#ENCODING_PCM_FLOAT}. */
@UnstableApi public static final int ENCODING_PCM_FLOAT = AudioFormat.ENCODING_PCM_FLOAT;

/** PCM encoding with double-precision floating point samples. */
@UnstableApi public static final int ENCODING_PCM_DOUBLE = 0x70000000;

/** See {@link AudioFormat#ENCODING_MP3}. */
@UnstableApi public static final int ENCODING_MP3 = AudioFormat.ENCODING_MP3;

Expand Down Expand Up @@ -307,6 +313,9 @@ private C() {}
/** See {@link AudioFormat#ENCODING_OPUS}. */
@UnstableApi public static final int ENCODING_OPUS = AudioFormat.ENCODING_OPUS;

/** See {@link AudioFormat#ENCODING_DSD}. */
@UnstableApi public static final int ENCODING_DSD = AudioFormat.ENCODING_DSD;

/**
* Represents the behavior affecting whether spatialization will be used. One of {@link
* #SPATIALIZATION_BEHAVIOR_AUTO} or {@link #SPATIALIZATION_BEHAVIOR_NEVER}.
Expand Down
3 changes: 3 additions & 0 deletions libraries/common/src/main/java/androidx/media3/common/MimeTypes.java
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Expand Up @@ -86,6 +86,7 @@ public final class MimeTypes {
public static final String AUDIO_E_AC3_JOC = BASE_TYPE_AUDIO + "/eac3-joc";
public static final String AUDIO_AC4 = BASE_TYPE_AUDIO + "/ac4";
public static final String AUDIO_TRUEHD = BASE_TYPE_AUDIO + "/true-hd";
public static final String AUDIO_DSD = BASE_TYPE_AUDIO + "/x-dsd";
public static final String AUDIO_DTS = BASE_TYPE_AUDIO + "/vnd.dts";
public static final String AUDIO_DTS_HD = BASE_TYPE_AUDIO + "/vnd.dts.hd";
public static final String AUDIO_DTS_EXPRESS = BASE_TYPE_AUDIO + "/vnd.dts.hd;profile=lbr";
Expand Down Expand Up @@ -686,6 +687,8 @@ public static boolean isDolbyVisionCodec(
return C.ENCODING_DOLBY_TRUEHD;
case MimeTypes.AUDIO_OPUS:
return C.ENCODING_OPUS;
case MimeTypes.AUDIO_DSD:
return C.ENCODING_DSD;
default:
return C.ENCODING_INVALID;
}
Expand Down
20 changes: 19 additions & 1 deletion libraries/common/src/main/java/androidx/media3/common/audio/ToInt16PcmAudioProcessor.java
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Expand Up @@ -34,6 +34,7 @@
* <li>{@link C#ENCODING_PCM_32BIT}
* <li>{@link C#ENCODING_PCM_32BIT_BIG_ENDIAN}
* <li>{@link C#ENCODING_PCM_FLOAT}
* <li>{@link C#ENCODING_PCM_DOUBLE}
* </ul>
*/
@UnstableApi
Expand All @@ -50,7 +51,8 @@ public AudioFormat onConfigure(AudioFormat inputAudioFormat)
&& encoding != C.ENCODING_PCM_24BIT_BIG_ENDIAN
&& encoding != C.ENCODING_PCM_32BIT
&& encoding != C.ENCODING_PCM_32BIT_BIG_ENDIAN
&& encoding != C.ENCODING_PCM_FLOAT) {
&& encoding != C.ENCODING_PCM_FLOAT
&& encoding != C.ENCODING_PCM_DOUBLE) {
throw new UnhandledAudioFormatException(inputAudioFormat);
}
return encoding != C.ENCODING_PCM_16BIT
Expand Down Expand Up @@ -82,6 +84,9 @@ public void queueInput(ByteBuffer inputBuffer) {
case C.ENCODING_PCM_FLOAT:
resampledSize = size / 2;
break;
case C.ENCODING_PCM_DOUBLE:
resampledSize = size / 4;
break;
case C.ENCODING_PCM_16BIT:
case C.ENCODING_INVALID:
case Format.NO_VALUE:
Expand Down Expand Up @@ -147,6 +152,19 @@ public void queueInput(ByteBuffer inputBuffer) {
buffer.put((byte) ((shortValue >> 8) & 0xFF));
}
break;
case C.ENCODING_PCM_DOUBLE:
// 64 bit floating point -> 16 bit resampling. Floating point values are in the range
// [-1.0, 1.0], so need to be scaled by Short.MAX_VALUE.
for (int i = position; i < limit; i += 8) {
// Clamp to avoid integer overflow if the floating point values exceed their nominal range
// [Internal ref: b/161204847].
double doubleValue =
Util.constrainValue(inputBuffer.getDouble(i), /* min= */ -1, /* max= */ 1);
short shortValue = (short) (doubleValue * Short.MAX_VALUE);
buffer.put((byte) (shortValue & 0xFF));
buffer.put((byte) ((shortValue >> 8) & 0xFF));
}
break;
case C.ENCODING_PCM_16BIT:
case C.ENCODING_INVALID:
case Format.NO_VALUE:
Expand Down
1 change: 1 addition & 0 deletions libraries/common/src/main/java/androidx/media3/common/util/MediaFormatUtil.java
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Expand Up @@ -482,6 +482,7 @@ private static void maybeSetPcmEncoding(
case C.ENCODING_PCM_16BIT_BIG_ENDIAN:
case C.ENCODING_PCM_24BIT_BIG_ENDIAN:
case C.ENCODING_PCM_32BIT_BIG_ENDIAN:
case C.ENCODING_PCM_DOUBLE:
default:
// No matching value. Do nothing.
return;
Expand Down
22 changes: 20 additions & 2 deletions libraries/common/src/main/java/androidx/media3/common/util/Util.java
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Expand Up @@ -1189,6 +1189,19 @@ public static float constrainValue(float value, float min, float max) {
return max(min, min(value, max));
}

/**
* Constrains a value to the specified bounds.
*
* @param value The value to constrain.
* @param min The lower bound.
* @param max The upper bound.
* @return The constrained value {@code Math.max(min, Math.min(value, max))}.
*/
@UnstableApi
public static double constrainValue(double value, double min, double max) {
return max(min, min(value, max));
}

/**
* Returns the sum of two arguments, or a third argument if the result overflows.
*
Expand Down Expand Up @@ -2279,7 +2292,8 @@ public static boolean isEncodingLinearPcm(@C.Encoding int encoding) {
|| encoding == C.ENCODING_PCM_24BIT_BIG_ENDIAN
|| encoding == C.ENCODING_PCM_32BIT
|| encoding == C.ENCODING_PCM_32BIT_BIG_ENDIAN
|| encoding == C.ENCODING_PCM_FLOAT;
|| encoding == C.ENCODING_PCM_FLOAT
|| encoding == C.ENCODING_PCM_DOUBLE;
}

/**
Expand All @@ -2294,7 +2308,8 @@ public static boolean isEncodingHighResolutionPcm(@C.PcmEncoding int encoding) {
|| encoding == C.ENCODING_PCM_24BIT_BIG_ENDIAN
|| encoding == C.ENCODING_PCM_32BIT
|| encoding == C.ENCODING_PCM_32BIT_BIG_ENDIAN
|| encoding == C.ENCODING_PCM_FLOAT;
|| encoding == C.ENCODING_PCM_FLOAT
|| encoding == C.ENCODING_PCM_DOUBLE;
}

/**
Expand Down Expand Up @@ -2404,6 +2419,7 @@ public static int getApiLevelThatAudioFormatIntroducedAudioEncoding(int encoding
case C.ENCODING_PCM_32BIT:
return 31;
case C.ENCODING_DTS_UHD_P2:
case C.ENCODING_DSD:
return 34;
default:
return Integer.MAX_VALUE;
Expand Down Expand Up @@ -2443,6 +2459,8 @@ public static int getByteDepth(@C.PcmEncoding int pcmEncoding) {
case C.ENCODING_PCM_32BIT_BIG_ENDIAN:
case C.ENCODING_PCM_FLOAT:
return 4;
case C.ENCODING_PCM_DOUBLE:
return 8;
case C.ENCODING_INVALID:
case Format.NO_VALUE:
default:
Expand Down
3 changes: 3 additions & 0 deletions ...exoplayer/src/main/java/androidx/media3/exoplayer/audio/ChannelMappingAudioProcessor.java
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Expand Up @@ -113,6 +113,9 @@ public void queueInput(ByteBuffer inputBuffer) {
case C.ENCODING_PCM_FLOAT:
buffer.putFloat(inputBuffer.getFloat(inputIndex));
break;
case C.ENCODING_PCM_DOUBLE:
buffer.putDouble(inputBuffer.getDouble(inputIndex));
break;
default:
throw new IllegalStateException("Unexpected encoding: " + inputAudioFormat.encoding);
}
Expand Down
2 changes: 2 additions & 0 deletions libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/DefaultAudioSink.java
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Expand Up @@ -1941,7 +1941,9 @@ private static int getFramesPerEncodedSample(@C.Encoding int encoding, ByteBuffe
case C.ENCODING_PCM_32BIT_BIG_ENDIAN:
case C.ENCODING_PCM_8BIT:
case C.ENCODING_PCM_FLOAT:
case C.ENCODING_PCM_DOUBLE:
case C.ENCODING_AAC_ER_BSAC:
case C.ENCODING_DSD:
case C.ENCODING_INVALID:
case Format.NO_VALUE:
default:
Expand Down
14 changes: 14 additions & 0 deletions libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/PcmAudioUtil.java
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Expand Up @@ -101,6 +101,13 @@ public static int readAs32BitIntPcm(ByteBuffer buffer, @C.Encoding int pcmEncodi
} else {
return (int) (floatValue * Integer.MAX_VALUE);
}
case C.ENCODING_PCM_DOUBLE:
double doubleValue = Util.constrainValue(buffer.getDouble(), /* min= */ -1f, /* max= */ 1f);
if (doubleValue < 0) {
return (int) (-doubleValue * Integer.MIN_VALUE);
} else {
return (int) (doubleValue * Integer.MAX_VALUE);
}
default:
throw new IllegalStateException();
}
Expand Down Expand Up @@ -156,6 +163,13 @@ public static void write32BitIntPcm(
buffer.putFloat((float) pcm32bit / Integer.MAX_VALUE);
}
return;
case C.ENCODING_PCM_DOUBLE:
if (pcm32bit < 0) {
buffer.putDouble(-((double) pcm32bit) / Integer.MIN_VALUE);
} else {
buffer.putDouble((double) pcm32bit / Integer.MAX_VALUE);
}
return;
default:
throw new IllegalStateException();
}
Expand Down
7 changes: 7 additions & 0 deletions ...ies/exoplayer/src/main/java/androidx/media3/exoplayer/audio/ToFloatPcmAudioProcessor.java
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Expand Up @@ -33,6 +33,7 @@
* <li>{@link C#ENCODING_PCM_32BIT}
* <li>{@link C#ENCODING_PCM_32BIT_BIG_ENDIAN}
* <li>{@link C#ENCODING_PCM_FLOAT} ({@link #isActive()} will return {@code false})
* <li>{@link C#ENCODING_PCM_DOUBLE}
* </ul>
*/
@UnstableApi
Expand Down Expand Up @@ -104,6 +105,12 @@ public void queueInput(ByteBuffer inputBuffer) {
writePcm32BitFloat(pcm32BitInteger, buffer);
}
break;
case C.ENCODING_PCM_DOUBLE:
buffer = replaceOutputBuffer(size / 2);
for (int i = position; i < limit; i += 8) {
buffer.putFloat((float) inputBuffer.getDouble(i));
}
break;
case C.ENCODING_PCM_8BIT:
case C.ENCODING_PCM_16BIT:
case C.ENCODING_PCM_16BIT_BIG_ENDIAN:
Expand Down
2 changes: 2 additions & 0 deletions libraries/extractor/src/main/java/androidx/media3/extractor/ExtractorUtil.java
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Expand Up @@ -168,7 +168,9 @@ public static int getMaximumEncodedRateBytesPerSecond(@C.Encoding int encoding)
case C.ENCODING_PCM_32BIT_BIG_ENDIAN:
case C.ENCODING_PCM_8BIT:
case C.ENCODING_PCM_FLOAT:
case C.ENCODING_PCM_DOUBLE:
case C.ENCODING_AAC_ER_BSAC:
case C.ENCODING_DSD:
case C.ENCODING_INVALID:
case Format.NO_VALUE:
default:
Expand Down