diff --git a/media/codec2/components/aac/C2SoftAacDec.cpp b/media/codec2/components/aac/C2SoftAacDec.cpp
index f39620e..9884733 100644
--- a/media/codec2/components/aac/C2SoftAacDec.cpp
+++ b/media/codec2/components/aac/C2SoftAacDec.cpp
@@ -89,11 +89,18 @@
         addParameter(
                 DefineParam(mChannelCount, C2_PARAMKEY_CHANNEL_COUNT)
                 .withDefault(new C2StreamChannelCountInfo::output(0u, 1))
-                .withFields({C2F(mChannelCount, value).inRange(1, 8)})
+                .withFields({C2F(mChannelCount, value).inRange(1, MAX_CHANNEL_COUNT)})
                 .withSetter(Setter<decltype(*mChannelCount)>::StrictValueWithNoDeps)
                 .build());
 
         addParameter(
+                DefineParam(mMaxChannelCount, C2_PARAMKEY_MAX_CHANNEL_COUNT)
+                .withDefault(new C2StreamMaxChannelCountInfo::input(0u, MAX_CHANNEL_COUNT))
+                .withFields({C2F(mMaxChannelCount, value).inRange(1, MAX_CHANNEL_COUNT)})
+                .withSetter(Setter<decltype(*mMaxChannelCount)>::StrictValueWithNoDeps)
+                .build());
+
+        addParameter(
                 DefineParam(mBitrate, C2_PARAMKEY_BITRATE)
                 .withDefault(new C2StreamBitrateInfo::input(0u, 64000))
                 .withFields({C2F(mBitrate, value).inRange(8000, 960000)})
@@ -225,6 +232,7 @@
     int32_t getDrcAttenuationFactor() const { return mDrcAttenuationFactor->value * 127. + 0.5; }
     int32_t getDrcEffectType() const { return mDrcEffectType->value; }
     int32_t getDrcAlbumMode() const { return mDrcAlbumMode->value; }
+    u_int32_t getMaxChannelCount() const { return mMaxChannelCount->value; }
     int32_t getDrcOutputLoudness() const { return (mDrcOutputLoudness->value <= 0 ? -mDrcOutputLoudness->value * 4. + 0.5 : -1); }
 
 private:
@@ -241,6 +249,7 @@
     std::shared_ptr<C2StreamDrcAttenuationFactorTuning::input> mDrcAttenuationFactor;
     std::shared_ptr<C2StreamDrcEffectTypeTuning::input> mDrcEffectType;
     std::shared_ptr<C2StreamDrcAlbumModeTuning::input> mDrcAlbumMode;
+    std::shared_ptr<C2StreamMaxChannelCountInfo::input> mMaxChannelCount;
     std::shared_ptr<C2StreamDrcOutputLoudnessTuning::output> mDrcOutputLoudness;
     // TODO Add : C2StreamAacSbrModeTuning
 };
@@ -366,9 +375,10 @@
     ALOGV("AAC decoder using MPEG-D DRC album mode %d", albumMode);
     aacDecoder_SetParam(mAACDecoder, AAC_UNIDRC_ALBUM_MODE, albumMode);
 
-    // By default, the decoder creates a 5.1 channel downmix signal.
-    // For seven and eight channel input streams, enable 6.1 and 7.1 channel output
-    aacDecoder_SetParam(mAACDecoder, AAC_PCM_MAX_OUTPUT_CHANNELS, -1);
+    // AAC_PCM_MAX_OUTPUT_CHANNELS
+    u_int32_t maxChannelCount = mIntf->getMaxChannelCount();
+    ALOGV("AAC decoder using maximum output channel count %d", maxChannelCount);
+    aacDecoder_SetParam(mAACDecoder, AAC_PCM_MAX_OUTPUT_CHANNELS, maxChannelCount);
 
     return status;
 }
@@ -707,6 +717,11 @@
         ALOGV("AAC decoder using MPEG-D DRC album mode %d", albumMode);
         aacDecoder_SetParam(mAACDecoder, AAC_UNIDRC_ALBUM_MODE, albumMode);
 
+        // AAC_PCM_MAX_OUTPUT_CHANNELS
+        int32_t maxChannelCount = mIntf->getMaxChannelCount();
+        ALOGV("AAC decoder using maximum output channel count %d", maxChannelCount);
+        aacDecoder_SetParam(mAACDecoder, AAC_PCM_MAX_OUTPUT_CHANNELS, maxChannelCount);
+
         mDrcWrap.update();
 
         UINT inBufferUsedLength = inBufferLength[0] - bytesValid[0];
@@ -847,6 +862,51 @@
                     ALOGE("Getting output loudness failed");
                 }
             }
+
+            // update config with values used for decoding:
+            //    Album mode, target reference level, DRC effect type, DRC attenuation and boost
+            //    factor, DRC compression mode, encoder target level and max channel count
+            // with input values as they were not modified by decoder
+
+            C2StreamDrcAttenuationFactorTuning::input currentAttenuationFactor(0u,
+                    (C2FloatValue) (attenuationFactor/127.));
+            work->worklets.front()->output.configUpdate.push_back(
+                    C2Param::Copy(currentAttenuationFactor));
+
+            C2StreamDrcBoostFactorTuning::input currentBoostFactor(0u,
+                    (C2FloatValue) (boostFactor/127.));
+            work->worklets.front()->output.configUpdate.push_back(
+                    C2Param::Copy(currentBoostFactor));
+
+            C2StreamDrcCompressionModeTuning::input currentCompressMode(0u,
+                    (C2Config::drc_compression_mode_t) compressMode);
+            work->worklets.front()->output.configUpdate.push_back(
+                    C2Param::Copy(currentCompressMode));
+
+            C2StreamDrcEncodedTargetLevelTuning::input currentEncodedTargetLevel(0u,
+                    (C2FloatValue) (encTargetLevel*-0.25));
+            work->worklets.front()->output.configUpdate.push_back(
+                    C2Param::Copy(currentEncodedTargetLevel));
+
+            C2StreamDrcAlbumModeTuning::input currentAlbumMode(0u,
+                    (C2Config::drc_album_mode_t) albumMode);
+            work->worklets.front()->output.configUpdate.push_back(
+                    C2Param::Copy(currentAlbumMode));
+
+            C2StreamDrcTargetReferenceLevelTuning::input currentTargetRefLevel(0u,
+                    (float) (targetRefLevel*-0.25));
+            work->worklets.front()->output.configUpdate.push_back(
+                    C2Param::Copy(currentTargetRefLevel));
+
+            C2StreamDrcEffectTypeTuning::input currentEffectype(0u,
+                    (C2Config::drc_effect_type_t) effectType);
+            work->worklets.front()->output.configUpdate.push_back(
+                    C2Param::Copy(currentEffectype));
+
+            C2StreamMaxChannelCountInfo::input currentMaxChannelCnt(0u, maxChannelCount);
+            work->worklets.front()->output.configUpdate.push_back(
+                    C2Param::Copy(currentMaxChannelCnt));
+
         } while (decoderErr == AAC_DEC_OK);
     }
 
diff --git a/media/codec2/sfplugin/CCodecBufferChannel.cpp b/media/codec2/sfplugin/CCodecBufferChannel.cpp
index 2cd357b..0626c8d 100644
--- a/media/codec2/sfplugin/CCodecBufferChannel.cpp
+++ b/media/codec2/sfplugin/CCodecBufferChannel.cpp
@@ -732,6 +732,9 @@
     std::shared_ptr<const C2StreamHdr10PlusInfo::output> hdr10PlusInfo =
         std::static_pointer_cast<const C2StreamHdr10PlusInfo::output>(
                 c2Buffer->getInfo(C2StreamHdr10PlusInfo::output::PARAM_TYPE));
+    if (hdr10PlusInfo && hdr10PlusInfo->flexCount() == 0) {
+        hdr10PlusInfo.reset();
+    }
 
     {
         Mutexed<OutputSurface>::Locked output(mOutputSurface);
@@ -783,7 +786,7 @@
                     .maxLuminance = hdrStaticInfo->mastering.maxLuminance,
                     .minLuminance = hdrStaticInfo->mastering.minLuminance,
                 };
-                hdr.validTypes = HdrMetadata::SMPTE2086;
+                hdr.validTypes |= HdrMetadata::SMPTE2086;
                 hdr.smpte2086 = smpte2086_meta;
             }
             // If the content light level fields are 0, do not use them, it
diff --git a/media/extractors/fuzzers/Android.bp b/media/extractors/fuzzers/Android.bp
index 0a70815..502743e 100644
--- a/media/extractors/fuzzers/Android.bp
+++ b/media/extractors/fuzzers/Android.bp
@@ -17,13 +17,8 @@
  *****************************************************************************
  * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
  */
-
-cc_library {
-    name: "libextractorfuzzerbase",
-
-    srcs: [
-        "ExtractorFuzzerBase.cpp",
-    ],
+cc_defaults {
+    name: "extractor-fuzzerbase-defaults",
 
     local_include_dirs: [
         "include",
@@ -43,16 +38,10 @@
     shared_libs: [
         "libutils",
         "libbinder",
+        "libbase",
+        "libcutils",
     ],
 
-    /* GETEXTRACTORDEF is not defined as extractor library is not linked in the
-     * base class. It will be included when the extractor fuzzer binary is
-     * generated.
-     */
-    allow_undefined_symbols: true,
-
-    host_supported: true,
-
     target: {
         darwin: {
             enabled: false,
@@ -60,8 +49,64 @@
     },
 }
 
+cc_defaults {
+    name: "extractor-fuzzer-defaults",
+    defaults: ["extractor-fuzzerbase-defaults"],
+
+    static_libs: [
+        "libextractorfuzzerbase",
+    ],
+
+    fuzz_config: {
+        cc: [
+            "android-media-fuzzing-reports@google.com",
+        ],
+        componentid: 155276,
+    },
+}
+
+cc_defaults {
+    name: "mpeg2-extractor-fuzzer-defaults",
+    defaults: ["extractor-fuzzer-defaults"],
+
+    include_dirs: [
+        "frameworks/av/media/extractors/mpeg2",
+        "frameworks/av/media/libstagefright",
+    ],
+
+    static_libs: [
+        "libstagefright_foundation_without_imemory",
+        "libstagefright_mpeg2support",
+        "libstagefright_mpeg2extractor",
+        "libstagefright_esds",
+        "libmpeg2extractor",
+    ],
+
+    shared_libs: [
+        "android.hardware.cas@1.0",
+        "android.hardware.cas.native@1.0",
+        "android.hidl.token@1.0-utils",
+        "android.hidl.allocator@1.0",
+        "libcrypto",
+        "libhidlmemory",
+        "libhidlbase",
+    ],
+}
+
+cc_library_static {
+    name: "libextractorfuzzerbase",
+    defaults: ["extractor-fuzzerbase-defaults"],
+    host_supported: true,
+
+    srcs: [
+        "ExtractorFuzzerBase.cpp",
+    ],
+}
+
 cc_fuzz {
     name: "mp4_extractor_fuzzer",
+    defaults: ["extractor-fuzzer-defaults"],
+    host_supported: true,
 
     srcs: [
         "mp4_extractor_fuzzer.cpp",
@@ -76,35 +121,17 @@
     ],
 
     static_libs: [
-        "liblog",
-        "libstagefright_foundation",
-        "libmediandk_format",
-        "libmedia_ndkformatpriv",
-        "libextractorfuzzerbase",
         "libstagefright_id3",
         "libstagefright_esds",
         "libmp4extractor",
     ],
 
-    shared_libs: [
-        "libutils",
-        "libbinder",
-    ],
-
     dictionary: "mp4_extractor_fuzzer.dict",
-
-    fuzz_config: {
-        cc: [
-            "android-media-fuzzing-reports@google.com",
-        ],
-        componentid: 155276,
-    },
-
-    host_supported: true,
 }
 
 cc_fuzz {
     name: "wav_extractor_fuzzer",
+    defaults: ["extractor-fuzzer-defaults"],
 
     srcs: [
         "wav_extractor_fuzzer.cpp",
@@ -115,32 +142,18 @@
     ],
 
     static_libs: [
-        "liblog",
-        "libstagefright_foundation",
-        "libmedia",
-        "libextractorfuzzerbase",
         "libfifo",
         "libwavextractor",
     ],
 
     shared_libs: [
-        "libutils",
-        "libmediandk",
-        "libbinder",
         "libbinder_ndk",
-        "libbase",
     ],
-
-    fuzz_config: {
-        cc: [
-            "android-media-fuzzing-reports@google.com",
-        ],
-        componentid: 155276,
-    },
 }
 
 cc_fuzz {
     name: "amr_extractor_fuzzer",
+    defaults: ["extractor-fuzzer-defaults"],
 
     srcs: [
         "amr_extractor_fuzzer.cpp",
@@ -151,31 +164,15 @@
     ],
 
     static_libs: [
-        "liblog",
-        "libstagefright_foundation",
-        "libmedia",
-        "libextractorfuzzerbase",
         "libamrextractor",
     ],
 
-    shared_libs: [
-        "libutils",
-        "libmediandk",
-        "libbinder",
-    ],
-
     dictionary: "amr_extractor_fuzzer.dict",
-
-    fuzz_config: {
-        cc: [
-            "android-media-fuzzing-reports@google.com",
-        ],
-        componentid: 155276,
-    },
 }
 
 cc_fuzz {
     name: "mkv_extractor_fuzzer",
+    defaults: ["extractor-fuzzer-defaults"],
 
     srcs: [
         "mkv_extractor_fuzzer.cpp",
@@ -186,10 +183,6 @@
     ],
 
     static_libs: [
-        "liblog",
-        "libstagefright_foundation",
-        "libmedia",
-        "libextractorfuzzerbase",
         "libwebm",
         "libstagefright_flacdec",
         "libstagefright_metadatautils",
@@ -197,24 +190,12 @@
         "libFLAC",
     ],
 
-    shared_libs: [
-        "libutils",
-        "libmediandk",
-        "libbinder",
-    ],
-
     dictionary: "mkv_extractor_fuzzer.dict",
-
-    fuzz_config: {
-        cc: [
-            "android-media-fuzzing-reports@google.com",
-        ],
-        componentid: 155276,
-    },
 }
 
 cc_fuzz {
     name: "ogg_extractor_fuzzer",
+    defaults: ["extractor-fuzzer-defaults"],
 
     srcs: [
         "ogg_extractor_fuzzer.cpp",
@@ -225,129 +206,43 @@
     ],
 
     static_libs: [
-        "liblog",
-        "libstagefright_foundation",
-        "libmedia",
-        "libextractorfuzzerbase",
         "libstagefright_metadatautils",
         "libvorbisidec",
         "liboggextractor",
     ],
 
-    shared_libs: [
-        "libutils",
-        "libmediandk",
-        "libbinder",
-    ],
-
     dictionary: "ogg_extractor_fuzzer.dict",
-
-    fuzz_config: {
-        cc: [
-            "android-media-fuzzing-reports@google.com",
-        ],
-        componentid: 155276,
-    },
 }
 
 cc_fuzz {
     name: "mpeg2ps_extractor_fuzzer",
+    defaults: ["mpeg2-extractor-fuzzer-defaults"],
 
     srcs: [
         "mpeg2_extractor_fuzzer.cpp",
     ],
 
-    include_dirs: [
-        "frameworks/av/media/extractors/mpeg2",
-        "frameworks/av/media/libstagefright",
-    ],
-
-    static_libs: [
-        "liblog",
-        "libstagefright_foundation_without_imemory",
-        "libmedia",
-        "libextractorfuzzerbase",
-        "libstagefright_mpeg2support",
-        "libstagefright_mpeg2extractor",
-        "libstagefright_esds",
-        "libmpeg2extractor",
-    ],
-
     cflags: [
         "-DMPEG2PS",
     ],
 
-    shared_libs: [
-        "libutils",
-        "libmediandk",
-        "libbinder",
-        "android.hardware.cas@1.0",
-        "android.hardware.cas.native@1.0",
-        "android.hidl.token@1.0-utils",
-        "android.hidl.allocator@1.0",
-        "libcrypto",
-        "libhidlmemory",
-        "libhidlbase",
-    ],
-
     dictionary: "mpeg2ps_extractor_fuzzer.dict",
-
-    fuzz_config: {
-        cc: [
-            "android-media-fuzzing-reports@google.com",
-        ],
-        componentid: 155276,
-    },
 }
 
 cc_fuzz {
     name: "mpeg2ts_extractor_fuzzer",
+    defaults: ["mpeg2-extractor-fuzzer-defaults"],
 
     srcs: [
         "mpeg2_extractor_fuzzer.cpp",
     ],
 
-    include_dirs: [
-        "frameworks/av/media/extractors/mpeg2",
-        "frameworks/av/media/libstagefright",
-    ],
-
-    static_libs: [
-        "liblog",
-        "libstagefright_foundation_without_imemory",
-        "libmedia",
-        "libextractorfuzzerbase",
-        "libstagefright_mpeg2support",
-        "libstagefright_mpeg2extractor",
-        "libstagefright_esds",
-        "libmpeg2extractor",
-    ],
-
-    shared_libs: [
-        "libutils",
-        "libmediandk",
-        "libbinder",
-        "android.hardware.cas@1.0",
-        "android.hardware.cas.native@1.0",
-        "android.hidl.token@1.0-utils",
-        "android.hidl.allocator@1.0",
-        "libcrypto",
-        "libhidlmemory",
-        "libhidlbase",
-    ],
-
     dictionary: "mpeg2ts_extractor_fuzzer.dict",
-
-    fuzz_config: {
-        cc: [
-            "android-media-fuzzing-reports@google.com",
-        ],
-        componentid: 155276,
-    },
 }
 
 cc_fuzz {
     name: "mp3_extractor_fuzzer",
+    defaults: ["extractor-fuzzer-defaults"],
 
     srcs: [
         "mp3_extractor_fuzzer.cpp",
@@ -358,31 +253,15 @@
     ],
 
     static_libs: [
-        "liblog",
-        "libstagefright_foundation",
-        "libmedia",
-        "libextractorfuzzerbase",
         "libfifo",
         "libmp3extractor",
         "libstagefright_id3",
     ],
-
-    shared_libs: [
-        "libutils",
-        "libmediandk",
-        "libbinder",
-    ],
-
-    fuzz_config: {
-        cc: [
-            "android-media-fuzzing-reports@google.com",
-        ],
-        componentid: 155276,
-    },
 }
 
 cc_fuzz {
     name: "aac_extractor_fuzzer",
+    defaults: ["extractor-fuzzer-defaults"],
 
     srcs: [
         "aac_extractor_fuzzer.cpp",
@@ -393,30 +272,14 @@
     ],
 
     static_libs: [
-        "liblog",
-        "libstagefright_foundation",
-        "libmedia",
-        "libextractorfuzzerbase",
         "libaacextractor",
         "libstagefright_metadatautils",
     ],
-
-    shared_libs: [
-        "libutils",
-        "libmediandk",
-        "libbinder",
-    ],
-
-    fuzz_config: {
-        cc: [
-            "android-media-fuzzing-reports@google.com",
-        ],
-        componentid: 155276,
-    },
 }
 
 cc_fuzz {
     name: "flac_extractor_fuzzer",
+    defaults: ["extractor-fuzzer-defaults"],
 
     srcs: [
         "flac_extractor_fuzzer.cpp",
@@ -427,29 +290,14 @@
     ],
 
     static_libs: [
-        "liblog",
-        "libstagefright_foundation",
-        "libmedia",
-        "libextractorfuzzerbase",
         "libstagefright_metadatautils",
         "libFLAC",
         "libflacextractor",
     ],
 
     shared_libs: [
-        "libutils",
-        "libmediandk",
-        "libbinder",
         "libbinder_ndk",
-        "libbase",
     ],
 
     dictionary: "flac_extractor_fuzzer.dict",
-
-    fuzz_config: {
-        cc: [
-            "android-media-fuzzing-reports@google.com",
-        ],
-        componentid: 155276,
-    },
 }
diff --git a/media/libstagefright/Android.bp b/media/libstagefright/Android.bp
index fac6350..2f149de 100644
--- a/media/libstagefright/Android.bp
+++ b/media/libstagefright/Android.bp
@@ -144,8 +144,10 @@
 
     header_libs: [
         "libaudioclient_headers",
-        "libmedia_headers",
+        "libbase_headers",
+        "libmedia_datasource_headers",
         "media_ndk_headers",
+        "media_plugin_headers",
     ],
 
     cflags: [
@@ -162,6 +164,18 @@
             "signed-integer-overflow",
         ],
     },
+
+    host_supported: true,
+    target: {
+        darwin: {
+            enabled: false,
+        },
+        linux: {
+            cflags: [
+                "-DDISABLE_AUDIO_SYSTEM_OFFLOAD",
+            ],
+        }
+    },
 }
 
 cc_library_shared {
diff --git a/media/libstagefright/Utils.cpp b/media/libstagefright/Utils.cpp
index ef69827..d67874f 100644
--- a/media/libstagefright/Utils.cpp
+++ b/media/libstagefright/Utils.cpp
@@ -2178,7 +2178,11 @@
     }
     // Check if offload is possible for given format, stream type, sample rate,
     // bit rate, duration, video and streaming
+#ifdef DISABLE_AUDIO_SYSTEM_OFFLOAD
+    return false;
+#else
     return AudioSystem::isOffloadSupported(info);
+#endif
 }
 
 HLSTime::HLSTime(const sp<AMessage>& meta) :
diff --git a/media/libstagefright/data/media_codecs_sw.xml b/media/libstagefright/data/media_codecs_sw.xml
index dd2eed3..6571162 100644
--- a/media/libstagefright/data/media_codecs_sw.xml
+++ b/media/libstagefright/data/media_codecs_sw.xml
@@ -295,12 +295,12 @@
             <Feature name="bitrate-modes" value="VBR,CBR" />
         </MediaCodec>
         <MediaCodec name="c2.android.hevc.encoder" type="video/hevc" variant="!slow-cpu">
-            <!-- profiles and levels:  ProfileMain : MainTierLevel51 -->
-            <Limit name="size" min="2x2" max="512x512" />
+            <!-- profiles and levels:  ProfileMain : MainTierLevel3 -->
+            <Limit name="size" min="2x2" max="960x544" />
             <Limit name="alignment" value="2x2" />
             <Limit name="block-size" value="8x8" />
-            <Limit name="block-count" range="1-4096" /> <!-- max 512x512 -->
-            <Limit name="blocks-per-second" range="1-122880" />
+            <Limit name="block-count" range="1-8160" /> <!-- max 960x544 -->
+            <Limit name="blocks-per-second" range="1-244880" />
             <Limit name="frame-rate" range="1-120" />
             <Limit name="bitrate" range="1-10000000" />
             <Limit name="complexity" range="0-10"  default="0" />
diff --git a/media/libstagefright/tests/writer/WriterTest.cpp b/media/libstagefright/tests/writer/WriterTest.cpp
index f1c599f..4c0add4 100644
--- a/media/libstagefright/tests/writer/WriterTest.cpp
+++ b/media/libstagefright/tests/writer/WriterTest.cpp
@@ -49,8 +49,32 @@
     int32_t channelCount;
 };
 
+enum inputId {
+    // audio streams
+    AAC_1,
+    AAC_ADTS_1,
+    AMR_NB_1,
+    AMR_WB_1,
+    FLAC_1,
+    OPUS_1,
+    VORBIS_1,
+    // video streams
+    AV1_1,
+    AVC_1,
+    H263_1,
+    HEVC_1,
+    MPEG4_1,
+    VP8_1,
+    VP9_1,
+    // heif stream
+    HEIC_1,
+    UNUSED_ID,
+    UNKNOWN_ID,
+};
+
 // LookUpTable of clips and metadata for component testing
 static const struct InputData {
+    inputId inpId;
     const char *mime;
     string inputFile;
     string info;
@@ -58,61 +82,67 @@
     int32_t secondParam;
     bool isAudio;
 } kInputData[] = {
-        {MEDIA_MIMETYPE_AUDIO_OPUS, "bbb_opus_stereo_128kbps_48000hz.opus",
-         "bbb_opus_stereo_128kbps_48000hz.info", 48000, 2, true},
-        {MEDIA_MIMETYPE_AUDIO_AAC, "bbb_aac_stereo_128kbps_48000hz.aac",
+        {AAC_1, MEDIA_MIMETYPE_AUDIO_AAC, "bbb_aac_stereo_128kbps_48000hz.aac",
          "bbb_aac_stereo_128kbps_48000hz.info", 48000, 2, true},
-        {MEDIA_MIMETYPE_AUDIO_AAC_ADTS, "Mps_2_c2_fr1_Sc1_Dc2_0x03_raw.adts",
+        {AAC_ADTS_1, MEDIA_MIMETYPE_AUDIO_AAC_ADTS, "Mps_2_c2_fr1_Sc1_Dc2_0x03_raw.adts",
          "Mps_2_c2_fr1_Sc1_Dc2_0x03_raw.info", 48000, 2, true},
-        {MEDIA_MIMETYPE_AUDIO_AMR_NB, "sine_amrnb_1ch_12kbps_8000hz.amrnb",
+        {AMR_NB_1, MEDIA_MIMETYPE_AUDIO_AMR_NB, "sine_amrnb_1ch_12kbps_8000hz.amrnb",
          "sine_amrnb_1ch_12kbps_8000hz.info", 8000, 1, true},
-        {MEDIA_MIMETYPE_AUDIO_AMR_WB, "bbb_amrwb_1ch_14kbps_16000hz.amrwb",
+        {AMR_WB_1, MEDIA_MIMETYPE_AUDIO_AMR_WB, "bbb_amrwb_1ch_14kbps_16000hz.amrwb",
          "bbb_amrwb_1ch_14kbps_16000hz.info", 16000, 1, true},
-        {MEDIA_MIMETYPE_AUDIO_VORBIS, "bbb_vorbis_stereo_128kbps_48000hz.vorbis",
-         "bbb_vorbis_stereo_128kbps_48000hz.info", 48000, 2, true},
-        {MEDIA_MIMETYPE_AUDIO_FLAC, "bbb_flac_stereo_680kbps_48000hz.flac",
+        {FLAC_1, MEDIA_MIMETYPE_AUDIO_FLAC, "bbb_flac_stereo_680kbps_48000hz.flac",
          "bbb_flac_stereo_680kbps_48000hz.info", 48000, 2, true},
-        {MEDIA_MIMETYPE_VIDEO_VP9, "bbb_vp9_176x144_285kbps_60fps.vp9",
-         "bbb_vp9_176x144_285kbps_60fps.info", 176, 144, false},
-        {MEDIA_MIMETYPE_VIDEO_VP8, "bbb_vp8_176x144_240kbps_60fps.vp8",
-         "bbb_vp8_176x144_240kbps_60fps.info", 176, 144, false},
-        {MEDIA_MIMETYPE_VIDEO_AVC, "bbb_avc_176x144_300kbps_60fps.h264",
+        {OPUS_1, MEDIA_MIMETYPE_AUDIO_OPUS, "bbb_opus_stereo_128kbps_48000hz.opus",
+         "bbb_opus_stereo_128kbps_48000hz.info", 48000, 2, true},
+        {VORBIS_1, MEDIA_MIMETYPE_AUDIO_VORBIS, "bbb_vorbis_stereo_128kbps_48000hz.vorbis",
+         "bbb_vorbis_stereo_128kbps_48000hz.info", 48000, 2, true},
+
+        {AV1_1, MEDIA_MIMETYPE_VIDEO_AV1, "bbb_av1_176_144.av1", "bbb_av1_176_144.info", 176, 144,
+         false},
+        {AVC_1, MEDIA_MIMETYPE_VIDEO_AVC, "bbb_avc_176x144_300kbps_60fps.h264",
          "bbb_avc_176x144_300kbps_60fps.info", 176, 144, false},
-        {MEDIA_MIMETYPE_VIDEO_HEVC, "bbb_hevc_176x144_176kbps_60fps.hevc",
-         "bbb_hevc_176x144_176kbps_60fps.info", 176, 144, false},
-        {MEDIA_MIMETYPE_VIDEO_AV1, "bbb_av1_176_144.av1", "bbb_av1_176_144.info", 176, 144, false},
-        {MEDIA_MIMETYPE_VIDEO_H263, "bbb_h263_352x288_300kbps_12fps.h263",
+        {H263_1, MEDIA_MIMETYPE_VIDEO_H263, "bbb_h263_352x288_300kbps_12fps.h263",
          "bbb_h263_352x288_300kbps_12fps.info", 352, 288, false},
-        {MEDIA_MIMETYPE_VIDEO_MPEG4, "bbb_mpeg4_352x288_512kbps_30fps.m4v",
+        {HEVC_1, MEDIA_MIMETYPE_VIDEO_HEVC, "bbb_hevc_176x144_176kbps_60fps.hevc",
+         "bbb_hevc_176x144_176kbps_60fps.info", 176, 144, false},
+        {MPEG4_1, MEDIA_MIMETYPE_VIDEO_MPEG4, "bbb_mpeg4_352x288_512kbps_30fps.m4v",
          "bbb_mpeg4_352x288_512kbps_30fps.info", 352, 288, false},
+        {VP8_1, MEDIA_MIMETYPE_VIDEO_VP8, "bbb_vp8_176x144_240kbps_60fps.vp8",
+         "bbb_vp8_176x144_240kbps_60fps.info", 176, 144, false},
+        {VP9_1, MEDIA_MIMETYPE_VIDEO_VP9, "bbb_vp9_176x144_285kbps_60fps.vp9",
+         "bbb_vp9_176x144_285kbps_60fps.info", 176, 144, false},
+
+        {HEIC_1, MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC, "bbb_hevc_176x144_176kbps_60fps.hevc",
+         "bbb_heic_176x144_176kbps_60fps.info", 176, 144, false},
 };
 
 class WriterTest {
   public:
-    WriterTest() : mWriter(nullptr), mFileMeta(nullptr), mCurrentTrack(nullptr) {}
+    WriterTest() : mWriter(nullptr), mFileMeta(nullptr) {}
 
     ~WriterTest() {
         if (mFileMeta) {
             mFileMeta.clear();
             mFileMeta = nullptr;
         }
-        if (mCurrentTrack) {
-            mCurrentTrack->stop();
-            mCurrentTrack.clear();
-            mCurrentTrack = nullptr;
-        }
         if (mWriter) {
             mWriter.clear();
             mWriter = nullptr;
         }
-        mBufferInfo.clear();
-        if (mInputStream.is_open()) mInputStream.close();
         if (gEnv->cleanUp()) remove(OUTPUT_FILE_NAME);
+
+        for (int32_t idx = 0; idx < kMaxTrackCount; idx++) {
+            mBufferInfo[idx].clear();
+            if (mCurrentTrack[idx]) {
+                mCurrentTrack[idx]->stop();
+                mCurrentTrack[idx].clear();
+                mCurrentTrack[idx] = nullptr;
+            }
+            if (mInputStream[idx].is_open()) mInputStream[idx].close();
+        }
     }
 
     void setupWriterType(string writerFormat) {
-        mNumCsds = 0;
-        mInputFrameId = 0;
         mWriterName = unknown_comp;
         mDisableTest = false;
         static const std::map<std::string, standardWriters> mapWriter = {
@@ -128,11 +158,11 @@
         }
     }
 
-    void getInputBufferInfo(string inputFileName, string inputInfo);
+    void getInputBufferInfo(string inputFileName, string inputInfo, int32_t idx = 0);
 
     int32_t createWriter(int32_t fd);
 
-    int32_t addWriterSource(bool isAudio, configFormat params);
+    int32_t addWriterSource(bool isAudio, configFormat params, int32_t idx = 0);
 
     enum standardWriters {
         OGG,
@@ -149,38 +179,42 @@
     standardWriters mWriterName;
     sp<MediaWriter> mWriter;
     sp<MetaData> mFileMeta;
-    sp<MediaAdapter> mCurrentTrack;
+    sp<MediaAdapter> mCurrentTrack[kMaxTrackCount]{};
 
     bool mDisableTest;
-    int32_t mNumCsds;
-    int32_t mInputFrameId;
-    ifstream mInputStream;
-    vector<BufferInfo> mBufferInfo;
+    int32_t mNumCsds[kMaxTrackCount]{};
+    int32_t mInputFrameId[kMaxTrackCount]{};
+    ifstream mInputStream[kMaxTrackCount]{};
+    vector<BufferInfo> mBufferInfo[kMaxTrackCount];
 };
 
-class WriteFunctionalityTest : public WriterTest,
-                               public ::testing::TestWithParam<pair<string, int32_t>> {
+class WriteFunctionalityTest
+    : public WriterTest,
+      public ::testing::TestWithParam<tuple<string /* writerFormat*/, inputId /* inputId0*/,
+                                            inputId /* inputId1*/, float /* BufferInterval*/>> {
   public:
-    virtual void SetUp() override { setupWriterType(GetParam().first); }
+    virtual void SetUp() override { setupWriterType(get<0>(GetParam())); }
 };
 
-void WriterTest::getInputBufferInfo(string inputFileName, string inputInfo) {
+void WriterTest::getInputBufferInfo(string inputFileName, string inputInfo, int32_t idx) {
     std::ifstream eleInfo;
     eleInfo.open(inputInfo.c_str());
     ASSERT_EQ(eleInfo.is_open(), true);
     int32_t bytesCount = 0;
     uint32_t flags = 0;
     int64_t timestamp = 0;
+    int32_t numCsds = 0;
     while (1) {
         if (!(eleInfo >> bytesCount)) break;
         eleInfo >> flags;
         eleInfo >> timestamp;
-        mBufferInfo.push_back({bytesCount, flags, timestamp});
-        if (flags == CODEC_CONFIG_FLAG) mNumCsds++;
+        mBufferInfo[idx].push_back({bytesCount, flags, timestamp});
+        if (flags == CODEC_CONFIG_FLAG) numCsds++;
     }
     eleInfo.close();
-    mInputStream.open(inputFileName.c_str(), std::ifstream::binary);
-    ASSERT_EQ(mInputStream.is_open(), true);
+    mNumCsds[idx] = numCsds;
+    mInputStream[idx].open(inputFileName.c_str(), std::ifstream::binary);
+    ASSERT_EQ(mInputStream[idx].is_open(), true);
 }
 
 int32_t WriterTest::createWriter(int32_t fd) {
@@ -226,10 +260,10 @@
     return 0;
 }
 
-int32_t WriterTest::addWriterSource(bool isAudio, configFormat params) {
-    if (mInputFrameId) return -1;
+int32_t WriterTest::addWriterSource(bool isAudio, configFormat params, int32_t idx) {
+    if (mInputFrameId[idx]) return -1;
     sp<AMessage> format = new AMessage;
-    if (mInputStream.is_open()) {
+    if (mInputStream[idx].is_open()) {
         format->setString("mime", params.mime);
         if (isAudio) {
             format->setInt32("channel-count", params.channelCount);
@@ -238,25 +272,34 @@
             format->setInt32("width", params.width);
             format->setInt32("height", params.height);
         }
-
-        int32_t status =
-                writeHeaderBuffers(mInputStream, mBufferInfo, mInputFrameId, format, mNumCsds);
-        if (status != 0) return -1;
+        if (mNumCsds[idx]) {
+            int32_t status = writeHeaderBuffers(mInputStream[idx], mBufferInfo[idx],
+                                                mInputFrameId[idx], format, mNumCsds[idx]);
+            if (status != 0) return -1;
+        }
     }
+
     sp<MetaData> trackMeta = new MetaData;
     convertMessageToMetaData(format, trackMeta);
-    mCurrentTrack = new MediaAdapter(trackMeta);
-    if (mCurrentTrack == nullptr) {
+    mCurrentTrack[idx] = new MediaAdapter(trackMeta);
+    if (mCurrentTrack[idx] == nullptr) {
         ALOGE("MediaAdapter returned nullptr");
         return -1;
     }
-    status_t result = mWriter->addSource(mCurrentTrack);
+    status_t result = mWriter->addSource(mCurrentTrack[idx]);
     return result;
 }
 
 void getFileDetails(string &inputFilePath, string &info, configFormat &params, bool &isAudio,
-                    int32_t streamIndex = 0) {
-    if (streamIndex >= sizeof(kInputData) / sizeof(kInputData[0])) {
+                    inputId inpId) {
+    int32_t inputDataSize = sizeof(kInputData) / sizeof(kInputData[0]);
+    int32_t streamIndex = 0;
+    for (; streamIndex < inputDataSize; streamIndex++) {
+        if (inpId == kInputData[streamIndex].inpId) {
+            break;
+        }
+    }
+    if (streamIndex == inputDataSize) {
         return;
     }
     inputFilePath += kInputData[streamIndex].inputFile;
@@ -284,14 +327,14 @@
 
     // Creating writer within a test scope. Destructor should be called when the test ends
     ASSERT_EQ((status_t)OK, createWriter(fd))
-            << "Failed to create writer for output format:" << GetParam().first;
+            << "Failed to create writer for output format:" << get<0>(GetParam());
 }
 
 TEST_P(WriteFunctionalityTest, WriterTest) {
     if (mDisableTest) return;
     ALOGV("Checks if for a given input, a valid muxed file has been created or not");
 
-    string writerFormat = GetParam().first;
+    string writerFormat = get<0>(GetParam());
     string outputFile = OUTPUT_FILE_NAME;
     int32_t fd =
             open(outputFile.c_str(), O_CREAT | O_LARGEFILE | O_TRUNC | O_RDWR, S_IRUSR | S_IWUSR);
@@ -300,25 +343,49 @@
     int32_t status = createWriter(fd);
     ASSERT_EQ((status_t)OK, status) << "Failed to create writer for output format:" << writerFormat;
 
-    string inputFile = gEnv->getRes();
-    string inputInfo = gEnv->getRes();
-    configFormat param;
-    bool isAudio;
-    int32_t inputFileIdx = GetParam().second;
-    getFileDetails(inputFile, inputInfo, param, isAudio, inputFileIdx);
-    ASSERT_NE(inputFile.compare(gEnv->getRes()), 0) << "No input file specified";
+    inputId inpId[] = {get<1>(GetParam()), get<2>(GetParam())};
+    ASSERT_NE(inpId[0], UNUSED_ID) << "Test expects first inputId to be a valid id";
 
-    ASSERT_NO_FATAL_FAILURE(getInputBufferInfo(inputFile, inputInfo));
-    status = addWriterSource(isAudio, param);
-    ASSERT_EQ((status_t)OK, status) << "Failed to add source for " << writerFormat << "Writer";
+    int32_t numTracks = 1;
+    if (inpId[1] != UNUSED_ID) {
+        numTracks++;
+    }
+    for (int32_t idx = 0; idx < numTracks; idx++) {
+        string inputFile = gEnv->getRes();
+        string inputInfo = gEnv->getRes();
+        configFormat param;
+        bool isAudio;
+        getFileDetails(inputFile, inputInfo, param, isAudio, inpId[idx]);
+        ASSERT_NE(inputFile.compare(gEnv->getRes()), 0) << "No input file specified";
+
+        ASSERT_NO_FATAL_FAILURE(getInputBufferInfo(inputFile, inputInfo, idx));
+        status = addWriterSource(isAudio, param, idx);
+        ASSERT_EQ((status_t)OK, status) << "Failed to add source for " << writerFormat << "Writer";
+    }
 
     status = mWriter->start(mFileMeta.get());
     ASSERT_EQ((status_t)OK, status);
-    status = sendBuffersToWriter(mInputStream, mBufferInfo, mInputFrameId, mCurrentTrack, 0,
-                                 mBufferInfo.size());
-    ASSERT_EQ((status_t)OK, status) << writerFormat << " writer failed";
-    mCurrentTrack->stop();
+    float interval = get<3>(GetParam());
+    ASSERT_LE(interval, 1.0f) << "Buffer interval invalid. Should be less than or equal to 1.0";
 
+    size_t range = 0;
+    int32_t loopCount = 0;
+    int32_t offset[kMaxTrackCount]{};
+    while (loopCount < ceil(1.0 / interval)) {
+        for (int32_t idx = 0; idx < numTracks; idx++) {
+            range = mBufferInfo[idx].size() * interval;
+            status = sendBuffersToWriter(mInputStream[idx], mBufferInfo[idx], mInputFrameId[idx],
+                                         mCurrentTrack[idx], offset[idx], range);
+            ASSERT_EQ((status_t)OK, status) << writerFormat << " writer failed";
+            offset[idx] += range;
+        }
+        loopCount++;
+    }
+    for (int32_t idx = 0; idx < kMaxTrackCount; idx++) {
+        if (mCurrentTrack[idx]) {
+            mCurrentTrack[idx]->stop();
+        }
+    }
     status = mWriter->stop();
     ASSERT_EQ((status_t)OK, status) << "Failed to stop the writer";
     close(fd);
@@ -328,7 +395,7 @@
     if (mDisableTest) return;
     ALOGV("Validates the pause() api of writers");
 
-    string writerFormat = GetParam().first;
+    string writerFormat = get<0>(GetParam());
     string outputFile = OUTPUT_FILE_NAME;
     int32_t fd =
             open(outputFile.c_str(), O_CREAT | O_LARGEFILE | O_TRUNC | O_RDWR, S_IRUSR | S_IWUSR);
@@ -341,8 +408,10 @@
     string inputInfo = gEnv->getRes();
     configFormat param;
     bool isAudio;
-    int32_t inputFileIdx = GetParam().second;
-    getFileDetails(inputFile, inputInfo, param, isAudio, inputFileIdx);
+    inputId inpId = get<1>(GetParam());
+    ASSERT_NE(inpId, UNUSED_ID) << "Test expects first inputId to be a valid id";
+
+    getFileDetails(inputFile, inputInfo, param, isAudio, inpId);
     ASSERT_NE(inputFile.compare(gEnv->getRes()), 0) << "No input file specified";
 
     ASSERT_NO_FATAL_FAILURE(getInputBufferInfo(inputFile, inputInfo));
@@ -351,8 +420,8 @@
 
     status = mWriter->start(mFileMeta.get());
     ASSERT_EQ((status_t)OK, status);
-    status = sendBuffersToWriter(mInputStream, mBufferInfo, mInputFrameId, mCurrentTrack, 0,
-                                 mBufferInfo.size() / 4);
+    status = sendBuffersToWriter(mInputStream[0], mBufferInfo[0], mInputFrameId[0],
+                                 mCurrentTrack[0], 0, mBufferInfo[0].size() / 4);
     ASSERT_EQ((status_t)OK, status) << writerFormat << " writer failed";
 
     bool isPaused = false;
@@ -362,19 +431,19 @@
         isPaused = true;
     }
     // In the pause state, writers shouldn't write anything. Testing the writers for the same
-    int32_t numFramesPaused = mBufferInfo.size() / 4;
-    status = sendBuffersToWriter(mInputStream, mBufferInfo, mInputFrameId, mCurrentTrack,
-                                  mInputFrameId, numFramesPaused, isPaused);
+    int32_t numFramesPaused = mBufferInfo[0].size() / 4;
+    status = sendBuffersToWriter(mInputStream[0], mBufferInfo[0], mInputFrameId[0],
+                                 mCurrentTrack[0], mInputFrameId[0], numFramesPaused, isPaused);
     ASSERT_EQ((status_t)OK, status) << writerFormat << " writer failed";
 
     if (isPaused) {
         status = mWriter->start(mFileMeta.get());
         ASSERT_EQ((status_t)OK, status);
     }
-    status = sendBuffersToWriter(mInputStream, mBufferInfo, mInputFrameId, mCurrentTrack,
-                                  mInputFrameId, mBufferInfo.size());
+    status = sendBuffersToWriter(mInputStream[0], mBufferInfo[0], mInputFrameId[0],
+                                 mCurrentTrack[0], mInputFrameId[0], mBufferInfo[0].size());
     ASSERT_EQ((status_t)OK, status) << writerFormat << " writer failed";
-    mCurrentTrack->stop();
+    mCurrentTrack[0]->stop();
 
     status = mWriter->stop();
     ASSERT_EQ((status_t)OK, status) << "Failed to stop the writer";
@@ -392,7 +461,7 @@
             open(outputFile.c_str(), O_CREAT | O_LARGEFILE | O_TRUNC | O_RDWR, S_IRUSR | S_IWUSR);
     ASSERT_GE(fd, 0) << "Failed to open output file to dump writer's data";
 
-    string writerFormat = GetParam().first;
+    string writerFormat = get<0>(GetParam());
     int32_t status = createWriter(fd);
     ASSERT_EQ(status, (status_t)OK) << "Failed to create writer for output format:" << writerFormat;
 
@@ -400,8 +469,10 @@
     string inputInfo = gEnv->getRes();
     configFormat param;
     bool isAudio;
-    int32_t inputFileIdx = GetParam().second;
-    getFileDetails(inputFile, inputInfo, param, isAudio, inputFileIdx);
+    inputId inpId = get<1>(GetParam());
+    ASSERT_NE(inpId, UNUSED_ID) << "Test expects first inputId to be a valid id";
+
+    getFileDetails(inputFile, inputInfo, param, isAudio, inpId);
     ASSERT_NE(inputFile.compare(gEnv->getRes()), 0) << "No input file specified";
 
     ASSERT_NO_FATAL_FAILURE(getInputBufferInfo(inputFile, inputInfo));
@@ -418,8 +489,8 @@
         mWriter->start(mFileMeta.get());
     }
 
-    status = sendBuffersToWriter(mInputStream, mBufferInfo, mInputFrameId, mCurrentTrack, 0,
-                              mBufferInfo.size() / 4);
+    status = sendBuffersToWriter(mInputStream[0], mBufferInfo[0], mInputFrameId[0],
+                                 mCurrentTrack[0], 0, mBufferInfo[0].size() / 4);
     ASSERT_EQ((status_t)OK, status) << writerFormat << " writer failed";
 
     for (int32_t count = 0; count < kMaxCount; count++) {
@@ -428,20 +499,20 @@
     }
 
     mWriter->pause();
-    int32_t numFramesPaused = mBufferInfo.size() / 4;
-    status = sendBuffersToWriter(mInputStream, mBufferInfo, mInputFrameId, mCurrentTrack,
-                              mInputFrameId, numFramesPaused, true);
+    int32_t numFramesPaused = mBufferInfo[0].size() / 4;
+    status = sendBuffersToWriter(mInputStream[0], mBufferInfo[0], mInputFrameId[0],
+                                 mCurrentTrack[0], mInputFrameId[0], numFramesPaused, true);
     ASSERT_EQ((status_t)OK, status) << writerFormat << " writer failed";
 
     for (int32_t count = 0; count < kMaxCount; count++) {
         mWriter->start(mFileMeta.get());
     }
 
-    status = sendBuffersToWriter(mInputStream, mBufferInfo, mInputFrameId, mCurrentTrack,
-                              mInputFrameId, mBufferInfo.size());
+    status = sendBuffersToWriter(mInputStream[0], mBufferInfo[0], mInputFrameId[0],
+                                 mCurrentTrack[0], mInputFrameId[0], mBufferInfo[0].size());
     ASSERT_EQ((status_t)OK, status) << writerFormat << " writer failed";
 
-    mCurrentTrack->stop();
+    mCurrentTrack[0]->stop();
 
     // first stop should succeed.
     status = mWriter->stop();
@@ -454,15 +525,13 @@
     close(fd);
 }
 
-class ListenerTest : public WriterTest,
-                     public ::testing::TestWithParam<
-                             tuple<string /* writerFormat*/, int32_t /* inputFileIdx*/,
-                                   float /* FileSizeLimit*/, float /* FileDurationLimit*/>> {
+class ListenerTest
+    : public WriterTest,
+      public ::testing::TestWithParam<tuple<
+              string /* writerFormat*/, inputId /* inputId0*/, inputId /* inputId1*/,
+              float /* FileSizeLimit*/, float /* FileDurationLimit*/, float /* BufferInterval*/>> {
   public:
-    virtual void SetUp() override {
-        tuple<string, int32_t, float, float> params = GetParam();
-        setupWriterType(get<0>(params));
-    }
+    virtual void SetUp() override { setupWriterType(get<0>(GetParam())); }
 };
 
 TEST_P(ListenerTest, SetMaxFileLimitsTest) {
@@ -470,8 +539,7 @@
     if (mDisableTest || mWriterName != MPEG4) return;
     ALOGV("Validates writer when max file limits are set");
 
-    tuple<string, int32_t, float, float> params = GetParam();
-    string writerFormat = get<0>(params);
+    string writerFormat = get<0>(GetParam());
     string outputFile = OUTPUT_FILE_NAME;
     int32_t fd =
             open(outputFile.c_str(), O_CREAT | O_LARGEFILE | O_TRUNC | O_RDWR, S_IRUSR | S_IWUSR);
@@ -480,30 +548,42 @@
     int32_t status = createWriter(fd);
     ASSERT_EQ((status_t)OK, status) << "Failed to create writer for output format:" << writerFormat;
 
-    string inputFile = gEnv->getRes();
-    string inputInfo = gEnv->getRes();
-    configFormat param;
-    bool isAudio;
-    int32_t inputFileIdx = get<1>(params);
-    getFileDetails(inputFile, inputInfo, param, isAudio, inputFileIdx);
-    ASSERT_NE(inputFile.compare(gEnv->getRes()), 0) << "No input file specified";
+    inputId inpId[] = {get<1>(GetParam()), get<2>(GetParam())};
+    ASSERT_NE(inpId[0], UNUSED_ID) << "Test expects first inputId to be a valid id";
 
-    ASSERT_NO_FATAL_FAILURE(getInputBufferInfo(inputFile, inputInfo));
-    status = addWriterSource(isAudio, param);
-    ASSERT_EQ((status_t)OK, status) << "Failed to add source for " << writerFormat << "Writer";
+    size_t inputFileSize = 0;
+    int64_t lastFrameTimeStampUs = INT_MAX;
+    int32_t numTracks = 1;
+    if (inpId[1] != UNUSED_ID) {
+        numTracks++;
+    }
+    for (int32_t idx = 0; idx < numTracks; idx++) {
+        string inputFile = gEnv->getRes();
+        string inputInfo = gEnv->getRes();
+        configFormat param;
+        bool isAudio;
+        getFileDetails(inputFile, inputInfo, param, isAudio, inpId[idx]);
+        ASSERT_NE(inputFile.compare(gEnv->getRes()), 0) << "No input file specified";
 
-    // Read file properties
-    struct stat buf;
-    status = stat(inputFile.c_str(), &buf);
-    ASSERT_EQ(0, status);
+        ASSERT_NO_FATAL_FAILURE(getInputBufferInfo(inputFile, inputInfo, idx));
+        status = addWriterSource(isAudio, param, idx);
+        ASSERT_EQ((status_t)OK, status) << "Failed to add source for " << writerFormat << "Writer";
 
-    float fileSizeLimit = get<2>(params);
-    float fileDurationLimit = get<3>(params);
+        // Read file properties
+        struct stat buf;
+        status = stat(inputFile.c_str(), &buf);
+        ASSERT_EQ(0, status);
+
+        inputFileSize += buf.st_size;
+        if (lastFrameTimeStampUs > mBufferInfo[idx][mBufferInfo[idx].size() - 1].timeUs) {
+            lastFrameTimeStampUs = mBufferInfo[idx][mBufferInfo[idx].size() - 1].timeUs;
+        }
+    }
+
+    float fileSizeLimit = get<3>(GetParam());
+    float fileDurationLimit = get<4>(GetParam());
     int64_t maxFileSize = 0;
     int64_t maxFileDuration = 0;
-
-    size_t inputFileSize = buf.st_size;
-    int64_t lastFrameTimeStampUs = mBufferInfo[mBufferInfo.size() - 1].timeUs;
     if (fileSizeLimit > 0) {
         maxFileSize = (int64_t)(fileSizeLimit * inputFileSize);
         mWriter->setMaxFileSize(maxFileSize);
@@ -518,14 +598,33 @@
 
     mWriter->setListener(listener);
     status = mWriter->start(mFileMeta.get());
-
     ASSERT_EQ((status_t)OK, status);
-    status = sendBuffersToWriter(mInputStream, mBufferInfo, mInputFrameId, mCurrentTrack, 0,
-                                 mBufferInfo.size(), false, listener);
-    ASSERT_EQ((status_t)OK, status) << writerFormat << " writer failed";
+
+    float interval = get<5>(GetParam());
+    ASSERT_LE(interval, 1.0f) << "Buffer interval invalid. Should be less than or equal to 1.0";
+
+    size_t range = 0;
+    int32_t loopCount = 0;
+    int32_t offset[kMaxTrackCount]{};
+    while (loopCount < ceil(1.0 / interval)) {
+        for (int32_t idx = 0; idx < numTracks; idx++) {
+            range = mBufferInfo[idx].size() * interval;
+            status = sendBuffersToWriter(mInputStream[idx], mBufferInfo[idx], mInputFrameId[idx],
+                                         mCurrentTrack[idx], offset[idx], range, false, listener);
+            ASSERT_EQ((status_t)OK, status) << writerFormat << " writer failed";
+            offset[idx] += range;
+        }
+        loopCount++;
+    }
+
     ASSERT_TRUE(mWriter->reachedEOS()) << "EOS not signalled.";
 
-    mCurrentTrack->stop();
+    for (int32_t idx = 0; idx < kMaxTrackCount; idx++) {
+        if (mCurrentTrack[idx]) {
+            mCurrentTrack[idx]->stop();
+        }
+    }
+
     status = mWriter->stop();
     ASSERT_EQ((status_t)OK, status) << "Failed to stop the writer";
     close(fd);
@@ -552,23 +651,57 @@
 
 // TODO: (b/150923387)
 // Add WEBM input
-INSTANTIATE_TEST_SUITE_P(
-        ListenerTestAll, ListenerTest,
-        ::testing::Values(make_tuple("ogg", 0, 0.7, 0.3), make_tuple("aac", 1, 0.6, 0.7),
-                          make_tuple("mpeg4", 1, 0.4, 0.3), make_tuple("amrnb", 3, 0.2, 0.6),
-                          make_tuple("amrwb", 4, 0.5, 0.5), make_tuple("mpeg2Ts", 1, 0.2, 1)));
+INSTANTIATE_TEST_SUITE_P(ListenerTestAll, ListenerTest,
+                         ::testing::Values(make_tuple("aac", AAC_1, UNUSED_ID, 0.6, 0.7, 1),
+                                           make_tuple("amrnb", AMR_NB_1, UNUSED_ID, 0.2, 0.6, 1),
+                                           make_tuple("amrwb", AMR_WB_1, UNUSED_ID, 0.5, 0.5, 1),
+                                           make_tuple("mpeg2Ts", AAC_1, UNUSED_ID, 0.2, 1, 1),
+                                           make_tuple("mpeg4", AAC_1, UNUSED_ID, 0.4, 0.3, 0.25),
+                                           make_tuple("ogg", OPUS_1, UNUSED_ID, 0.7, 0.3, 1)));
 
 // TODO: (b/144476164)
 // Add AAC_ADTS, FLAC, AV1 input
-INSTANTIATE_TEST_SUITE_P(WriterTestAll, WriteFunctionalityTest,
-                         ::testing::Values(make_pair("ogg", 0), make_pair("webm", 0),
-                                           make_pair("aac", 1), make_pair("mpeg4", 1),
-                                           make_pair("amrnb", 3), make_pair("amrwb", 4),
-                                           make_pair("webm", 5), make_pair("webm", 7),
-                                           make_pair("webm", 8), make_pair("mpeg4", 9),
-                                           make_pair("mpeg4", 10), make_pair("mpeg4", 12),
-                                           make_pair("mpeg4", 13), make_pair("mpeg2Ts", 1),
-                                           make_pair("mpeg2Ts", 9)));
+INSTANTIATE_TEST_SUITE_P(
+        WriterTestAll, WriteFunctionalityTest,
+        ::testing::Values(
+                make_tuple("aac", AAC_1, UNUSED_ID, 1),
+
+                make_tuple("amrnb", AMR_NB_1, UNUSED_ID, 1),
+                make_tuple("amrwb", AMR_WB_1, UNUSED_ID, 1),
+
+                // TODO(b/144902018): Enable test for mpeg2ts
+                // make_tuple("mpeg2Ts", AAC_1, UNUSED_ID, 1),
+                // make_tuple("mpeg2Ts", AVC_1, UNUSED_ID, 1),
+                // TODO(b/156355857): Add multitrack for mpeg2ts
+                // make_tuple("mpeg2Ts", AAC_1, AVC_1, 0.50),
+                // make_tuple("mpeg2Ts", AVC_1, AAC_1, 0.25),
+
+                make_tuple("mpeg4", AAC_1, UNUSED_ID, 1),
+                make_tuple("mpeg4", AMR_NB_1, UNUSED_ID, 1),
+                make_tuple("mpeg4", AMR_WB_1, UNUSED_ID, 1),
+                make_tuple("mpeg4", AVC_1, UNUSED_ID, 1),
+                make_tuple("mpeg4", H263_1, UNUSED_ID, 1),
+                make_tuple("mpeg4", HEIC_1, UNUSED_ID, 1),
+                make_tuple("mpeg4", HEVC_1, UNUSED_ID, 1),
+                make_tuple("mpeg4", MPEG4_1, UNUSED_ID, 1),
+                make_tuple("mpeg4", AAC_1, AVC_1, 0.25),
+                make_tuple("mpeg4", AVC_1, AAC_1, 0.75),
+                make_tuple("mpeg4", AMR_WB_1, AAC_1, 0.75),
+                make_tuple("mpeg4", HEVC_1, AMR_WB_1, 0.25),
+                make_tuple("mpeg4", H263_1, AMR_NB_1, 0.50),
+                make_tuple("mpeg4", MPEG4_1, AAC_1, 0.75),
+                make_tuple("mpeg4", AMR_NB_1, AMR_WB_1, 0.25),
+                make_tuple("mpeg4", H263_1, AMR_NB_1, 0.50),
+                make_tuple("mpeg4", MPEG4_1, HEVC_1, 0.75),
+
+                make_tuple("ogg", OPUS_1, UNUSED_ID, 1),
+
+                make_tuple("webm", OPUS_1, UNUSED_ID, 1),
+                make_tuple("webm", VORBIS_1, UNUSED_ID, 1),
+                make_tuple("webm", VP8_1, UNUSED_ID, 1),
+                make_tuple("webm", VP9_1, UNUSED_ID, 1),
+                make_tuple("webm", VP8_1, OPUS_1, 0.50),
+                make_tuple("webm", VORBIS_1, VP8_1, 0.25)));
 
 int main(int argc, char **argv) {
     gEnv = new WriterTestEnvironment();
diff --git a/media/libstagefright/tests/writer/WriterUtility.h b/media/libstagefright/tests/writer/WriterUtility.h
index 5e19973..5e79298 100644
--- a/media/libstagefright/tests/writer/WriterUtility.h
+++ b/media/libstagefright/tests/writer/WriterUtility.h
@@ -31,6 +31,7 @@
 
 #define CODEC_CONFIG_FLAG 32
 
+constexpr uint32_t kMaxTrackCount = 2;
 constexpr uint32_t kMaxCSDStrlen = 16;
 constexpr uint32_t kMaxCount = 20;
 
diff --git a/services/audioflinger/AudioStreamOut.cpp b/services/audioflinger/AudioStreamOut.cpp
index d13cb8f..7e06096 100644
--- a/services/audioflinger/AudioStreamOut.cpp
+++ b/services/audioflinger/AudioStreamOut.cpp
@@ -164,6 +164,10 @@
         stream = outStream;
         mHalFormatHasProportionalFrames = audio_has_proportional_frames(config->format);
         status = stream->getFrameSize(&mHalFrameSize);
+        LOG_ALWAYS_FATAL_IF(status != OK, "Error retrieving frame size from HAL: %d", status);
+        LOG_ALWAYS_FATAL_IF(mHalFrameSize <= 0, "Error frame size was %zu but must be greater than"
+                " zero", mHalFrameSize);
+
     }
 
     return status;
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 7e63851..b433cf9 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -6061,10 +6061,6 @@
     bool trackPaused = false;
     bool trackStopped = false;
 
-    if ((mType == DIRECT) && audio_is_linear_pcm(mFormat) && !usesHwAvSync()) {
-        return !mStandby;
-    }
-
     // do not put the HAL in standby when paused. AwesomePlayer clear the offloaded AudioTrack
     // after a timeout and we will enter standby then.
     if (mTracks.size() > 0) {
@@ -8435,13 +8431,14 @@
     }
     result = mInput->stream->getFrameSize(&mFrameSize);
     LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving frame size from HAL: %d", result);
+    LOG_ALWAYS_FATAL_IF(mFrameSize <= 0, "Error frame size was %zu but must be greater than zero",
+            mFrameSize);
     result = mInput->stream->getBufferSize(&mBufferSize);
     LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving buffer size from HAL: %d", result);
     mFrameCount = mBufferSize / mFrameSize;
-    ALOGV("%p RecordThread params: mChannelCount=%u, mFormat=%#x, mFrameSize=%lld, "
-            "mBufferSize=%lld, mFrameCount=%lld",
-            this, mChannelCount, mFormat, (long long)mFrameSize, (long long)mBufferSize,
-            (long long)mFrameCount);
+    ALOGV("%p RecordThread params: mChannelCount=%u, mFormat=%#x, mFrameSize=%zu, "
+            "mBufferSize=%zu, mFrameCount=%zu",
+            this, mChannelCount, mFormat, mFrameSize, mBufferSize, mFrameCount);
     // This is the formula for calculating the temporary buffer size.
     // With 7 HAL buffers, we can guarantee ability to down-sample the input by ratio of 6:1 to
     // 1 full output buffer, regardless of the alignment of the available input.
@@ -9017,6 +9014,8 @@
     LOG_ALWAYS_FATAL_IF(!audio_is_linear_pcm(mFormat), "HAL format %#x is not linear pcm", mFormat);
     result = mHalStream->getFrameSize(&mFrameSize);
     LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving frame size from HAL: %d", result);
+    LOG_ALWAYS_FATAL_IF(mFrameSize <= 0, "Error frame size was %zu but must be greater than zero",
+            mFrameSize);
     result = mHalStream->getBufferSize(&mBufferSize);
     LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving buffer size from HAL: %d", result);
     mFrameCount = mBufferSize / mFrameSize;
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 3730c34..c5c13e9 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -5770,15 +5770,6 @@
     DeviceVector filteredDevices = outputDesc->filterSupportedDevices(devices);
     DeviceVector prevDevices = outputDesc->devices();
 
-    // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current
-    // output profile or if new device is not supported AND previous device(s) is(are) still
-    // available (otherwise reset device must be done on the output)
-    if (!devices.isEmpty() && filteredDevices.isEmpty() &&
-            !mAvailableOutputDevices.filter(prevDevices).empty()) {
-        ALOGV("%s: unsupported device %s for output", __func__, devices.toString().c_str());
-        return 0;
-    }
-
     ALOGV("setOutputDevices() prevDevice %s", prevDevices.toString().c_str());
 
     if (!filteredDevices.isEmpty()) {
@@ -5793,6 +5784,17 @@
         muteWaitMs = 0;
     }
 
+    // no need to proceed if new device is not AUDIO_DEVICE_NONE and not supported by current
+    // output profile or if new device is not supported AND previous device(s) is(are) still
+    // available (otherwise reset device must be done on the output)
+    if (!devices.isEmpty() && filteredDevices.isEmpty() &&
+            !mAvailableOutputDevices.filter(prevDevices).empty()) {
+        ALOGV("%s: unsupported device %s for output", __func__, devices.toString().c_str());
+        // restore previous device after evaluating strategy mute state
+        outputDesc->setDevices(prevDevices);
+        return muteWaitMs;
+    }
+
     // Do not change the routing if:
     //      the requested device is AUDIO_DEVICE_NONE
     //      OR the requested device is the same as current device
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index 9577160..34d07b6 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -593,7 +593,7 @@
     }
 
     // including successes gets very verbose
-    // but once we cut over to westworld, log them all.
+    // but once we cut over to statsd, log them all.
     if (status != NO_ERROR) {
 
         static constexpr char kAudioPolicy[] = "audiopolicy";
diff --git a/services/mediametrics/AudioPowerUsage.cpp b/services/mediametrics/AudioPowerUsage.cpp
index c441110..cca6b41 100644
--- a/services/mediametrics/AudioPowerUsage.cpp
+++ b/services/mediametrics/AudioPowerUsage.cpp
@@ -34,7 +34,7 @@
 #define PROP_AUDIO_METRICS_DISABLED "persist.media.audio_metrics.power_usage_disabled"
 #define AUDIO_METRICS_DISABLED_DEFAULT (false)
 
-// property to set how long to send audio power use metrics data to westworld, default is 24hrs
+// property to set how long to send audio power use metrics data to statsd, default is 24hrs
 #define PROP_AUDIO_METRICS_INTERVAL_HR "persist.media.audio_metrics.interval_hr"
 #define INTERVAL_HR_DEFAULT (24)
 
diff --git a/services/mediametrics/MediaMetricsService.cpp b/services/mediametrics/MediaMetricsService.cpp
index d682fed..48e766e 100644
--- a/services/mediametrics/MediaMetricsService.cpp
+++ b/services/mediametrics/MediaMetricsService.cpp
@@ -185,7 +185,7 @@
     }
 
     if (!isTrusted || item->getTimestamp() == 0) {
-        // Westworld logs two times for events: ElapsedRealTimeNs (BOOTTIME) and
+        // Statsd logs two times for events: ElapsedRealTimeNs (BOOTTIME) and
         // WallClockTimeNs (REALTIME), but currently logs REALTIME to cloud.
         //
         // For consistency and correlation with other logging mechanisms
diff --git a/services/mediametrics/MediaMetricsService.h b/services/mediametrics/MediaMetricsService.h
index d152264..792b7f0 100644
--- a/services/mediametrics/MediaMetricsService.h
+++ b/services/mediametrics/MediaMetricsService.h
@@ -65,7 +65,7 @@
     static nsecs_t roundTime(nsecs_t timeNs);
 
     /**
-     * Returns true if we should use uid for package name when uploading to WestWorld.
+     * Returns true if we should use uid for package name when uploading to statsd.
      */
     static bool useUidForPackage(const std::string& package, const std::string& installer);