Reland: Use actual audio channel count in Spitzer audio decoder

media/base/android/ndk_media_codec_bridge.cc

Index: media/base/android/ndk_media_codec_bridge.cc
diff --git a/media/base/android/ndk_media_codec_bridge.cc b/media/base/android/ndk_media_codec_bridge.cc
index 0c3a2cd70964ac68f99611d984aff7c8ee5ba0e0..c39e0f9ca3e288f403602a9eb7b08c3668e18a0c 100644
--- a/media/base/android/ndk_media_codec_bridge.cc
+++ b/media/base/android/ndk_media_codec_bridge.cc
@@ -237,15 +237,15 @@ MediaCodecStatus NdkMediaCodecBridge::GetInputBuffer(int input_buffer_index,
   return MEDIA_CODEC_OK;
 }
 
-MediaCodecStatus NdkMediaCodecBridge::CopyFromOutputBuffer(int index,
-                                                           size_t offset,
-                                                           void* dst,
-                                                           size_t num) {
-  size_t capacity;
+MediaCodecStatus NdkMediaCodecBridge::GetOutputBufferAddress(
+    int index,
+    size_t offset,
+    const uint8_t** addr,
+    size_t* capacity) {
   const uint8_t* src_data =
-      AMediaCodec_getOutputBuffer(media_codec_.get(), index, &capacity);
-  CHECK_GE(capacity, offset + num);
-  memcpy(dst, src_data + offset, num);
+      AMediaCodec_getOutputBuffer(media_codec_.get(), index, capacity);
+  *addr = src_data + offset;
+  *capacity -= offset;
   return MEDIA_CODEC_OK;
 }