media: Enable Opus support in Clank <video> and MSE

media/base/android/media_codec_bridge.cc

Index: media/base/android/media_codec_bridge.cc
diff --git a/media/base/android/media_codec_bridge.cc b/media/base/android/media_codec_bridge.cc
index 10fbf0f32cfd7880be5418fa0e842e8683d32ee3..9128df32f1fd9a36930ef3d4f83a63d4faa85ccc 100644
--- a/media/base/android/media_codec_bridge.cc
+++ b/media/base/android/media_codec_bridge.cc
@@ -41,6 +41,8 @@ static const std::string AudioCodecToAndroidMimeType(const AudioCodec& codec) {
       return "audio/mpeg";
     case kCodecVorbis:
       return "audio/vorbis";
+    case kCodecOpus:
+      return "audio/opus";
     case kCodecAAC:
       return "audio/mp4a-latm";
     default:
@@ -73,6 +75,8 @@ static const std::string CodecTypeToAndroidMimeType(const std::string& codec) {
     return "video/x-vnd.on2.vp9";
   if (codec == "vorbis")
     return "audio/vorbis";
+  if (codec == "opus")
+    return "audio/opus";
   return std::string();
 }
 
@@ -92,6 +96,8 @@ static const std::string AndroidMimeTypeToCodecType(const std::string& mime) {
     return "mp3";
   if (mime == "audio/vorbis")
     return "vorbis";
+  if (mime == "audio/opus")
+    return "opus";
   return std::string();
 }
 
@@ -525,6 +531,8 @@ bool AudioCodecBridge::Start(const AudioCodec& codec,
                              int channel_count,
                              const uint8* extra_data,
                              size_t extra_data_size,
+                             int64 codec_delay_ns,
+                             int64 seek_preroll_ns,
                              bool play_audio,
                              jobject media_crypto) {
   JNIEnv* env = AttachCurrentThread();
@@ -542,8 +550,10 @@ bool AudioCodecBridge::Start(const AudioCodec& codec,
       env, j_mime.obj(), sample_rate, channel_count));
   DCHECK(!j_format.is_null());
 
-  if (!ConfigureMediaFormat(j_format.obj(), codec, extra_data, extra_data_size))
+  if (!ConfigureMediaFormat(j_format.obj(), codec, extra_data, extra_data_size,
+                            codec_delay_ns, seek_preroll_ns)) {
     return false;
+  }
 
   if (!Java_MediaCodecBridge_configureAudio(
            env, media_codec(), j_format.obj(), media_crypto, 0, play_audio)) {
@@ -556,8 +566,10 @@ bool AudioCodecBridge::Start(const AudioCodec& codec,
 bool AudioCodecBridge::ConfigureMediaFormat(jobject j_format,
                                             const AudioCodec& codec,
                                             const uint8* extra_data,
-                                            size_t extra_data_size) {
-  if (extra_data_size == 0)
+                                            size_t extra_data_size,
+                                            int64 codec_delay_ns,
+                                            int64 seek_preroll_ns) {
+  if (extra_data_size == 0 && codec != kCodecOpus)
     return true;
 
   JNIEnv* env = AttachCurrentThread();
@@ -648,6 +660,33 @@ bool AudioCodecBridge::ConfigureMediaFormat(jobject j_format,
       Java_MediaCodecBridge_setFrameHasADTSHeader(env, j_format);
       break;
     }
+    case kCodecOpus: {
+      if (!extra_data || extra_data_size == 0 ||
+          codec_delay_ns < 0 || seek_preroll_ns < 0) {
+        LOG(ERROR) << "Invalid Opus Header";
+        return false;
+      }
+
+      // csd0 - Opus Header
+      ScopedJavaLocalRef<jbyteArray> csd0 =
+          base::android::ToJavaByteArray(env, extra_data, extra_data_size);
+      Java_MediaCodecBridge_setCodecSpecificData(env, j_format, 0, csd0.obj());
+
+      // csd1 - Codec Delay
+      ScopedJavaLocalRef<jbyteArray> csd1 =
+          base::android::ToJavaByteArray(
+              env, reinterpret_cast<const uint8*>(&codec_delay_ns),
+              sizeof(int64_t));
+      Java_MediaCodecBridge_setCodecSpecificData(env, j_format, 1, csd1.obj());
+
+      // csd2 - Seek Preroll
+      ScopedJavaLocalRef<jbyteArray> csd2 =
+          base::android::ToJavaByteArray(
+              env, reinterpret_cast<const uint8*>(&seek_preroll_ns),
+              sizeof(int64_t));
+      Java_MediaCodecBridge_setCodecSpecificData(env, j_format, 2, csd2.obj());
+      break;
+    }
     default:
       LOG(ERROR) << "Invalid header encountered for codec: "
                  << AudioCodecToAndroidMimeType(codec);