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Prevent Cea608Decoder from generating Subtitles with null Cues list.

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PiperOrigin-RevId: 223580953
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olly 2018-11-30 23:01:07 +00:00 committed by Oliver Woodman
parent c55d95086b
commit a94fa330f5
1 changed files with 3 additions and 2 deletions
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5
library/core/src/main/java/com/google/android/exoplayer2/text/cea/Cea608Decoder.java
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@ -33,6 +33,7 @@ import com.google.android.exoplayer2.text.SubtitleInputBuffer;
import com.google.android.exoplayer2.util.MimeTypes; import com.google.android.exoplayer2.util.MimeTypes;
import com.google.android.exoplayer2.util.ParsableByteArray; import com.google.android.exoplayer2.util.ParsableByteArray;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Collections;
import java.util.List; import java.util.List;
/** /**
@ -451,7 +452,7 @@ public final class Cea608Decoder extends CeaDecoder {
switch (cc2) { switch (cc2) {
case CTRL_ERASE_DISPLAYED_MEMORY: case CTRL_ERASE_DISPLAYED_MEMORY:
cues = null; cues = Collections.emptyList();
if (captionMode == CC_MODE_ROLL_UP || captionMode == CC_MODE_PAINT_ON) { if (captionMode == CC_MODE_ROLL_UP || captionMode == CC_MODE_PAINT_ON) {
resetCueBuilders(); resetCueBuilders();
} }
@ -506,7 +507,7 @@ public final class Cea608Decoder extends CeaDecoder {
if (oldCaptionMode == CC_MODE_PAINT_ON || captionMode == CC_MODE_ROLL_UP if (oldCaptionMode == CC_MODE_PAINT_ON || captionMode == CC_MODE_ROLL_UP
|| captionMode == CC_MODE_UNKNOWN) { || captionMode == CC_MODE_UNKNOWN) {
// When switching from paint-on or to roll-up or unknown, we also need to clear the caption. // When switching from paint-on or to roll-up or unknown, we also need to clear the caption.
cues = null; cues = Collections.emptyList();
} }
} }