return SeekPoints directly for flacGetSeekPoints JNI method. update the proguard-rules.txt

extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/FlacDecoderJni.java

@@ -19,6 +19,7 @@ import androidx.annotation.Nullable;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
+import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.util.FlacStreamMetadata;
 import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
@@ -220,11 +221,12 @@ import java.nio.ByteBuffer;
    * stream.
    *
    * @param timeUs A seek position in microseconds.
-   * @return The corresponding position (byte offset) in the flac stream or -1 if the stream doesn't
+   * @return The corresponding SeekPoints in the flac seek table or
+   * {@link com.google.android.exoplayer2.extractor.SeekPoint#position} set -1 if the stream doesn't
    * have a seek table.
    */
-  public long[] getSeekPosition(long timeUs) {
-    return flacGetSeekPosition(nativeDecoderContext, timeUs);
+  public SeekMap.SeekPoints getSeekPoints(long timeUs) {
+    return flacGetSeekPoints(nativeDecoderContext, timeUs);
   }
 
   public String getStateString() {
@@ -283,7 +285,7 @@ import java.nio.ByteBuffer;
 
   private native long flacGetNextFrameFirstSampleIndex(long context);
 
-  private native long[] flacGetSeekPosition(long context, long timeUs);
+  private native SeekMap.SeekPoints flacGetSeekPoints(long context, long timeUs);
 
   private native String flacGetStateString(long context);
 

extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/FlacExtractor.java

@@ -29,7 +29,6 @@ import com.google.android.exoplayer2.extractor.ExtractorsFactory;
 import com.google.android.exoplayer2.extractor.Id3Peeker;
 import com.google.android.exoplayer2.extractor.PositionHolder;
 import com.google.android.exoplayer2.extractor.SeekMap;
-import com.google.android.exoplayer2.extractor.SeekPoint;
 import com.google.android.exoplayer2.extractor.TrackOutput;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.id3.Id3Decoder;
@@ -276,8 +275,8 @@ public final class FlacExtractor implements Extractor {
       FlacStreamMetadata streamMetadata,
       long streamLength,
       ExtractorOutput output) {
-    long[] result = decoderJni.getSeekPosition(/* timeUs= */ 0);
-    boolean hasSeekTable = result.length == 4 && result[1] != -1 && result[3] != -1;
+    SeekMap.SeekPoints seekPoints = decoderJni.getSeekPoints(/* timeUs= */ 0);
+    boolean hasSeekTable = seekPoints.first.position != -1 && seekPoints.second.position != -1;
     FlacBinarySearchSeeker binarySearchSeeker = null;
     SeekMap seekMap;
     if (hasSeekTable) {
@@ -342,12 +341,7 @@ public final class FlacExtractor implements Extractor {
 
     @Override
     public SeekPoints getSeekPoints(long timeUs) {
-      long[] result = decoderJni.getSeekPosition(timeUs);
-      if (result.length == 4) {
-        return new SeekPoints(new SeekPoint(result[0], result[1]), new SeekPoint(result[2], result[3]));
-      } else {
-        return new SeekPoints(new SeekPoint(timeUs, decoderJni.getDecodePosition()));
-      }
+      return decoderJni.getSeekPoints(timeUs);
     }
 
     @Override

extensions/flac/src/main/jni/flac_jni.cc

@@ -200,13 +200,19 @@ DECODER_FUNC(jlong, flacGetNextFrameFirstSampleIndex, jlong jContext) {
   return context->parser->getNextFrameFirstSampleIndex();
 }
 
-DECODER_FUNC(jlongArray, flacGetSeekPosition, jlong jContext, jlong timeUs) {
+DECODER_FUNC(jobject, flacGetSeekPoints, jlong jContext, jlong timeUs) {
   Context *context = reinterpret_cast<Context *>(jContext);
-  int64_t *result = context->parser->getSeekPosition(timeUs);
-  const jlong resultJLong[4] = {result[0], result[1], result[2], result[3]};
-  jlongArray resultArray = env->NewLongArray(4);
-  env->SetLongArrayRegion(resultArray, 0, 4, resultJLong);
-  return resultArray;
+  int64_t *result = context->parser->getSeekPositions(timeUs);
+  jclass seekPointClass = env->FindClass("com/google/android/exoplayer2/extractor/SeekPoint");
+  jclass seekPointsClass = env->FindClass("com/google/android/exoplayer2/extractor/SeekMap$SeekPoints");
+  jmethodID cidSeekPoint = env->GetMethodID(seekPointClass, "<init>", "(JJ)V");
+  jmethodID cidSeekPoints = env->GetMethodID(seekPointsClass, "<init>", "(Lcom/google/android/exoplayer2/extractor/SeekPoint;Lcom/google/android/exoplayer2/extractor/SeekPoint;)V");
+  jobject jSeekPointFirst = env->NewObject(seekPointClass, cidSeekPoint, (jlong) result[0], (jlong) result[1]);
+  jobject jSeekPointSecond = env->NewObject(seekPointClass, cidSeekPoint, (jlong) result[2], (jlong) result[3]);
+  jobject jSeekPoints = env->NewObject(seekPointsClass, cidSeekPoints, jSeekPointFirst, jSeekPointSecond);
+  env->DeleteLocalRef(jSeekPointFirst);
+  env->DeleteLocalRef(jSeekPointSecond);
+  return jSeekPoints;
 }
 
 DECODER_FUNC(jstring, flacGetStateString, jlong jContext) {

extensions/flac/src/main/jni/flac_parser.cc

@@ -438,7 +438,7 @@ size_t FLACParser::readBuffer(void *output, size_t output_size) {
   return bufferSize;
 }
 
-int64_t* FLACParser::getSeekPosition(int64_t timeUs) {
+int64_t* FLACParser::getSeekPositions(int64_t timeUs) {
   int64_t *result = new int64_t[4];
   memset(result, -1, sizeof(result));
   if (!mSeekTable) {
@@ -466,9 +466,9 @@ int64_t* FLACParser::getSeekPosition(int64_t timeUs) {
       return result;
     }
   }
-  result[0] = timeUs;
+  result[0] = 0;
   result[1] = firstFrameOffset;
-  result[2] = timeUs;
+  result[2] = 0;
   result[3] = firstFrameOffset;
   return result;
 }

extensions/flac/src/main/jni/include/flac_parser.h

@@ -84,7 +84,7 @@ class FLACParser {
   bool decodeMetadata();
   size_t readBuffer(void *output, size_t output_size);
 
-  int64_t* getSeekPosition(int64_t timeUs);
+  int64_t* getSeekPositions(int64_t timeUs);
 
   void flush() {
     reset(mCurrentPos);

library/core/proguard-rules.txt

@@ -58,6 +58,16 @@
   <init>(com.google.android.exoplayer2.upstream.DataSource$Factory);
 }
 
+-dontnote com.google.android.exoplayer2.extractor.SeekPoint
+-keepclasseswithmembers class com.google.android.exoplayer2.extractor.SeekPoint {
+  <init>(long, long);
+}
+
+-dontnote com.google.android.exoplayer2.extractor.SeekMap$SeekPoints
+-keepclasseswithmembers class com.google.android.exoplayer2.extractor.SeekMap$SeekPoints {
+  <init>(com.google.android.exoplayer2.extractor.SeekPoint, com.google.android.exoplayer2.extractor.SeekPoint);
+}
+
 # Don't warn about checkerframework and Kotlin annotations
 -dontwarn org.checkerframework.**
 -dontwarn kotlin.annotations.jvm.**