Add decoder instantiation tracing

This is just for consistency with our other renderers

PiperOrigin-RevId: 303317443

extensions/ffmpeg/src/main/java/com/google/android/exoplayer2/ext/ffmpeg/FfmpegAudioRenderer.java

@@ -27,6 +27,7 @@ import com.google.android.exoplayer2.audio.DefaultAudioSink;
 import com.google.android.exoplayer2.drm.ExoMediaCrypto;
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.MimeTypes;
+import com.google.android.exoplayer2.util.TraceUtil;
 import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 
 /** Decodes and renders audio using FFmpeg. */
@@ -119,11 +120,13 @@ public final class FfmpegAudioRenderer extends DecoderAudioRenderer {
   @Override
   protected FfmpegAudioDecoder createDecoder(Format format, @Nullable ExoMediaCrypto mediaCrypto)
       throws FfmpegDecoderException {
+    TraceUtil.beginSection("createFfmpegAudioDecoder");
     int initialInputBufferSize =
         format.maxInputSize != Format.NO_VALUE ? format.maxInputSize : DEFAULT_INPUT_BUFFER_SIZE;
     decoder =
         new FfmpegAudioDecoder(
             NUM_BUFFERS, NUM_BUFFERS, initialInputBufferSize, format, shouldUseFloatOutput(format));
+    TraceUtil.endSection();
     return decoder;
   }
 

extensions/ffmpeg/src/main/java/com/google/android/exoplayer2/ext/ffmpeg/FfmpegVideoRenderer.java

@@ -23,6 +23,7 @@ import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.RendererCapabilities;
 import com.google.android.exoplayer2.decoder.Decoder;
 import com.google.android.exoplayer2.drm.ExoMediaCrypto;
+import com.google.android.exoplayer2.util.TraceUtil;
 import com.google.android.exoplayer2.video.DecoderVideoRenderer;
 import com.google.android.exoplayer2.video.VideoDecoderInputBuffer;
 import com.google.android.exoplayer2.video.VideoDecoderOutputBuffer;
@@ -90,8 +91,10 @@ public final class FfmpegVideoRenderer extends DecoderVideoRenderer {
   protected Decoder<VideoDecoderInputBuffer, VideoDecoderOutputBuffer, FfmpegDecoderException>
       createDecoder(Format format, @Nullable ExoMediaCrypto mediaCrypto)
           throws FfmpegDecoderException {
+    TraceUtil.beginSection("createFfmpegVideoDecoder");
     // TODO: Implement, remove the SuppressWarnings annotation, and update the return type to use
     // the concrete type of the decoder (probably FfmepgVideoDecoder).
+    TraceUtil.endSection();
     return null;
   }
 

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

@@ -28,6 +28,7 @@ import com.google.android.exoplayer2.extractor.FlacStreamMetadata;
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.FlacConstants;
 import com.google.android.exoplayer2.util.MimeTypes;
+import com.google.android.exoplayer2.util.TraceUtil;
 import com.google.android.exoplayer2.util.Util;
 import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 
@@ -111,9 +112,11 @@ public final class LibflacAudioRenderer extends DecoderAudioRenderer {
   @Override
   protected FlacDecoder createDecoder(Format format, @Nullable ExoMediaCrypto mediaCrypto)
       throws FlacDecoderException {
+    TraceUtil.beginSection("createFlacDecoder");
     FlacDecoder decoder =
         new FlacDecoder(NUM_BUFFERS, NUM_BUFFERS, format.maxInputSize, format.initializationData);
     streamMetadata = decoder.getStreamMetadata();
+    TraceUtil.endSection();
     return decoder;
   }
 

extensions/opus/src/main/java/com/google/android/exoplayer2/ext/opus/LibopusAudioRenderer.java

@@ -24,6 +24,7 @@ import com.google.android.exoplayer2.audio.AudioRendererEventListener;
 import com.google.android.exoplayer2.audio.DecoderAudioRenderer;
 import com.google.android.exoplayer2.drm.ExoMediaCrypto;
 import com.google.android.exoplayer2.util.MimeTypes;
+import com.google.android.exoplayer2.util.TraceUtil;
 
 /** Decodes and renders audio using the native Opus decoder. */
 public class LibopusAudioRenderer extends DecoderAudioRenderer {
@@ -80,6 +81,7 @@ public class LibopusAudioRenderer extends DecoderAudioRenderer {
   @Override
   protected OpusDecoder createDecoder(Format format, @Nullable ExoMediaCrypto mediaCrypto)
       throws OpusDecoderException {
+    TraceUtil.beginSection("createOpusDecoder");
     int initialInputBufferSize =
         format.maxInputSize != Format.NO_VALUE ? format.maxInputSize : DEFAULT_INPUT_BUFFER_SIZE;
     OpusDecoder decoder =
@@ -91,6 +93,7 @@ public class LibopusAudioRenderer extends DecoderAudioRenderer {
             mediaCrypto);
     channelCount = decoder.getChannelCount();
     sampleRate = decoder.getSampleRate();
+    TraceUtil.endSection();
     return decoder;
   }