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Update E-AC3-JOC Codec String Name and Comment

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This commit is contained in:
ybai001 2021-07-23 12:00:22 +08:00
parent 08d81419e7
commit 5c95a59060
4 changed files with 6 additions and 6 deletions
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6
library/common/src/main/java/com/google/android/exoplayer2/audio/Ac3Util.java
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@ -92,12 +92,12 @@ public final class Ac3Util {
}
/**
* A non-standard codec string for E-AC-3. Use of this constant allows for disambiguation between
* regular AC-3 ("ec-3") and E-AC-3 ("ec+3") streams from the codec string alone. The standard is
* A non-standard codec string for E-AC3-JOC. Use of this constant allows for disambiguation between
* regular E-AC3 ("ec-3") and E-AC3-JOC ("ec+3") streams from the codec string alone. The standard is
* to use "ec-3" for both, as per the <a href="https://mp4ra.org/#/codecs">MP4RA registered codec
* types</a>.
*/
public static final String E_AC_3_CODEC_STRING = "ec+3";
public static final String E_AC3_JOC_CODEC_STRING = "ec+3";
/** Maximum rate for an AC-3 audio stream, in bytes per second. */
public static final int AC3_MAX_RATE_BYTES_PER_SECOND = 640 * 1000 / 8;
/** Maximum rate for an E-AC-3 audio stream, in bytes per second. */

2
library/common/src/main/java/com/google/android/exoplayer2/util/MimeTypes.java
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@ -376,7 +376,7 @@ public final class MimeTypes {
return MimeTypes.AUDIO_AC3;
} else if (codec.startsWith("ec-3") || codec.startsWith("dec3")) {
return MimeTypes.AUDIO_E_AC3;
} else if (codec.startsWith(Ac3Util.E_AC_3_CODEC_STRING)) {
} else if (codec.startsWith(Ac3Util.E_AC3_JOC_CODEC_STRING)) {
return MimeTypes.AUDIO_E_AC3_JOC;
} else if (codec.startsWith("ac-4") || codec.startsWith("dac4")) {
return MimeTypes.AUDIO_AC4;

2
library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestParser.java
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@ -776,7 +776,7 @@ public class DashManifestParser extends DefaultHandler
if (MimeTypes.AUDIO_E_AC3.equals(sampleMimeType)) {
sampleMimeType = parseEac3SupplementalProperties(supplementalProperties);
if (MimeTypes.AUDIO_E_AC3_JOC.equals(sampleMimeType)) {
codecs = Ac3Util.E_AC_3_CODEC_STRING;
codecs = Ac3Util.E_AC3_JOC_CODEC_STRING;
}
}
@C.SelectionFlags int selectionFlags = parseSelectionFlagsFromRoleDescriptors(roleDescriptors);

2
library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/HlsPlaylistParser.java
View File

@ -518,7 +518,7 @@ public final class HlsPlaylistParser implements ParsingLoadable.Parser<HlsPlayli
formatBuilder.setChannelCount(channelCount);
if (MimeTypes.AUDIO_E_AC3.equals(sampleMimeType) && channelsString.endsWith("/JOC")) {
sampleMimeType = MimeTypes.AUDIO_E_AC3_JOC;
formatBuilder.setCodecs(Ac3Util.E_AC_3_CODEC_STRING);
formatBuilder.setCodecs(Ac3Util.E_AC3_JOC_CODEC_STRING);
}
}
formatBuilder.setSampleMimeType(sampleMimeType);