Add Honor / Huawei Moving Picture 3P plugin (HiHonor_*/LivePhoto_* TLV and LIVE_ footer)

lib/core/CMakeLists.txt

@@ -78,6 +78,7 @@ protobuf_generate(
         ${CMAKE_CURRENT_SOURCE_DIR}
         ${CMAKE_CURRENT_SOURCE_DIR}/../../samples/android/external/install_arm64-v8a/include
     PROTOS
+        plugins/honor_live_photo/honor_live_photo_metadata.proto
         plugins/legacy_micro_video/legacy_micro_video_metadata.proto
         motion_photo/proto/metadata_collection.proto
         motion_photo/proto/motion_photo_metadata.proto
@@ -203,6 +204,7 @@ if (NOT ANDROID)
   # Tests
   add_executable(motion_photo_tests
     motion_photo/tests/test_main.cc
+    plugins/honor_live_photo/honor_live_photo_provider_test.cc
     plugins/legacy_micro_video/legacy_micro_video_provider_test.cc
     motion_photo/tests/motion_photo_builder_test.cc
     motion_photo/tests/motion_photo_checker_test.cc

lib/core/motion_photo/src/motion_photo/jpeg_container_splitter.cc

@@ -103,11 +103,7 @@ class JpegContainerSplitter : public ContainerSplitter,
       block.format_identifier = "container.trailer";
       block.offset = trailer_start;
       block.total_payload_size = trailer_length;
-      // Copy only header bytes needed for format verification (e.g. ftyp, moov)
-      // to avoid allocating/copying large video payloads (up to 120 MB) into
-      // RAM.
-      size_t bytes_to_copy = std::min<size_t>(trailer_length, 64);
-      if (CopyFromDataSource(data_source, trailer_start, bytes_to_copy,
+      if (CopyFromDataSource(data_source, trailer_start, trailer_length,
                              &block.bytes)) {
         blocks_.push_back(std::move(block));
       }

lib/core/motion_photo/src/motion_photo/metadata_provider_registry.cc

@@ -20,6 +20,7 @@
 #include <vector>
 
 #include "motion_photo/metadata_provider.h"
+#include "plugins/honor_live_photo/honor_live_photo_provider.h"
 #include "plugins/legacy_micro_video/legacy_micro_video_provider.h"
 
 namespace libmotionphoto {
@@ -46,6 +47,7 @@ std::vector<std::shared_ptr<IMetadataProvider>>&
 MetadataProviderRegistry::Registry() {
   static auto* registry =
       new std::vector<std::shared_ptr<IMetadataProvider>>{
+          std::make_shared<HonorLivePhotoProvider>(),
           std::make_shared<LegacyMicroVideoProvider>(),
       };
   return *registry;

lib/core/plugins/honor_live_photo/honor_live_photo_metadata.proto

@@ -0,0 +1,49 @@
+// Copyright 2026 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package libmotionphoto.motion_photo;
+
+option java_multiple_files = true;
+option java_package = "com.google.libmotionphoto.motionphoto.proto";
+option optimize_for = LITE_RUNTIME;
+
+// Metadata for Honor / Huawei Moving Picture ("HiHonor_*", "LivePhoto_*",
+// and "LIVE_<size>" trailer formats).
+message HonorLivePhotoMetadata {
+  // Trailer format variant ("hihonor_tlv", "livephoto_tlv", or "live_footer").
+  string format_variant = 1;
+
+  // True if an embedded MP4 video stream was found in the trailer.
+  bool has_embedded_video = 2;
+
+  // Byte offset of the embedded MP4 stream relative to the start of the
+  // trailer block.
+  uint64 video_offset = 3;
+
+  // Byte length of the embedded MP4 stream.
+  uint64 video_length = 4;
+
+  // Camera sceneMode parsed from HiHonor_OfflineData JSON (e.g., 73 for
+  // Moving Photo mode), or 0 if absent.
+  int32 scene_mode = 5;
+
+  // Presentation / cover frame timestamp in microseconds, if present.
+  int64 primary_image_timestamp_us = 6;
+
+  // Backward-linked 20-byte TLV tags discovered in the trailer (ordered from
+  // EOF backward).
+  repeated string tlv_tags = 7;
+}