Transcoder: Request background priority mode from muxer and codecs.
Request MediaCodec and MediaMuxer to run their internal threads
on background priority.
Bug: 183751395
Test: build_and_run_all_unit_tests.sh and manually inspecting format
Change-Id: I7982874d7155c95f38a9bfed9ed9c3a87acf445f
diff --git a/media/libmediatranscoding/transcoder/MediaSampleWriter.cpp b/media/libmediatranscoding/transcoder/MediaSampleWriter.cpp
index 0e800bc..e931cc1 100644
--- a/media/libmediatranscoding/transcoder/MediaSampleWriter.cpp
+++ b/media/libmediatranscoding/transcoder/MediaSampleWriter.cpp
@@ -19,6 +19,7 @@
#include <android-base/logging.h>
#include <media/MediaSampleWriter.h>
+#include <media/NdkCommon.h>
#include <media/NdkMediaMuxer.h>
#include <sys/prctl.h>
#include <utils/AndroidThreads.h>
@@ -126,7 +127,15 @@
LOG(ERROR) << "Muxer needs to be initialized when adding tracks.";
return nullptr;
}
- ssize_t trackIndexOrError = mMuxer->addTrack(trackFormat.get());
+
+ AMediaFormat* trackFormatCopy = AMediaFormat_new();
+ AMediaFormat_copy(trackFormatCopy, trackFormat.get());
+ // Request muxer to use background priorities by default.
+ AMediaFormatUtils::SetDefaultFormatValueInt32(TBD_AMEDIACODEC_PARAMETER_KEY_BACKGROUND_MODE,
+ trackFormatCopy, 1 /* true */);
+
+ ssize_t trackIndexOrError = mMuxer->addTrack(trackFormatCopy);
+ AMediaFormat_delete(trackFormatCopy);
if (trackIndexOrError < 0) {
LOG(ERROR) << "Failed to add media track to muxer: " << trackIndexOrError;
return nullptr;