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Ignore rowLock and columnLock values as specified by ANSI/CTA-708-E S-2023 document (section 8.4.7)

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datdoantelus 2024-01-02 14:18:51 -05:00 committed by Ian Baker
parent c230414bd3
commit 8b39f7e287
1 changed files with 6 additions and 2 deletions
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8
libraries/extractor/src/main/java/androidx/media3/extractor/text/cea/Cea708Parser.java
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@ -783,8 +783,12 @@ public final class Cea708Parser implements SubtitleParser {
// first byte
captionChannelPacketData.skipBits(2); // null padding
boolean visible = captionChannelPacketData.readBit();
boolean rowLock = captionChannelPacketData.readBit();
boolean columnLock = captionChannelPacketData.readBit();
// ANSI/CTA-708-E S-2023 spec (Section 8.4.7) indicates that rowLock and columnLock should be ignored and assumed to be lock
captionChannelPacketData.readBits(2);
boolean rowLock = true;
boolean columnLock = true;
int priority = captionChannelPacketData.readBits(3);
// second byte
boolean relativePositioning = captionChannelPacketData.readBit();