diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 92c08fe6..bbb8c5be 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -106,6 +106,15 @@
             </intent-filter>
         </activity>
 
+        <activity
+            android:name=".player.PlayerActivity"
+            android:launchMode="singleInstance"
+            android:configChanges="orientation|screenSize|screenLayout|smallestScreenSize"
+            android:screenOrientation="sensor"
+            android:exported="false">
+
+        </activity>
+
         <activity
             android:name=".LauncherActivity"
             android:theme="@style/Theme.LunarLauncher.Starting"
diff --git a/app/src/main/cpp/CMakeLists.txt b/app/src/main/cpp/CMakeLists.txt
index 59ae1013..c0ef9a16 100644
--- a/app/src/main/cpp/CMakeLists.txt
+++ b/app/src/main/cpp/CMakeLists.txt
@@ -39,6 +39,8 @@ add_library(native_renderer SHARED
         Renderer.cpp
         Preloader.cpp
         MediaAsset.cpp
+        native_player.cpp
+        PlayerEngine.cpp
 )
 
 
@@ -55,6 +57,8 @@ target_link_libraries(native_renderer
         swscale
         swresample
         jnigraphics
+        swresample # 💡 추가!
+        aaudio     # 💡 추가! 안드로이드 네이티브 오디오
         # 안드로이드 기본 라이브러리들
         ${log-lib}
         ${android-lib}
diff --git a/app/src/main/cpp/PlayerEngine.cpp b/app/src/main/cpp/PlayerEngine.cpp
new file mode 100644
index 00000000..38524e10
--- /dev/null
+++ b/app/src/main/cpp/PlayerEngine.cpp
@@ -0,0 +1,273 @@
+#include "PlayerEngine.h"
+#include <android/log.h>
+#include <chrono>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+#define LOG_TAG "NativePlayerEngine"
+#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
+#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
+
+// [1. 커스텀 I/O 함수]
+static int custom_read_packet(void *opaque, uint8_t *buf, int buf_size) {
+    int fd = (int)(intptr_t)opaque;
+    int ret = read(fd, buf, buf_size);
+    if (ret == 0) return AVERROR_EOF;
+    if (ret < 0) return AVERROR(errno);
+    return ret;
+}
+
+static int64_t custom_seek_packet(void *opaque, int64_t offset, int whence) {
+    int fd = (int)(intptr_t)opaque;
+    if (whence == AVSEEK_SIZE) {
+        struct stat st;
+        if (fstat(fd, &st) == 0) return st.st_size;
+        return AVERROR(errno);
+    }
+    whence &= ~AVSEEK_FORCE;
+    int64_t ret = lseek(fd, offset, whence);
+    return ret < 0 ? AVERROR(errno) : ret;
+}
+
+// [2. 생성자 및 초기화]
+PlayerEngine::PlayerEngine(JavaVM* vm, jobject listenerObj) : jvm_(vm) {
+    JNIEnv* env;
+    jvm_->GetEnv((void**)&env, JNI_VERSION_1_6);
+    listenerObj_ = env->NewGlobalRef(listenerObj);
+    jclass clazz = env->GetObjectClass(listenerObj_);
+
+    auto getMethod = [&](const char* name, const char* sig) -> jmethodID {
+        jmethodID id = env->GetMethodID(clazz, name, sig);
+        if (env->ExceptionCheck()) {
+            env->ExceptionClear();
+            LOGE("❌ Failed to find method: %s %s", name, sig);
+            return nullptr;
+        }
+        return id;
+    };
+
+    subtitleMethodId_  = getMethod("onSubtitleTextDecoded", "(Ljava/lang/String;)V");
+    videoSizeMethodId_ = getMethod("onVideoSizeChanged", "(II)V");
+}
+
+PlayerEngine::~PlayerEngine() {
+    stop();
+    if (listenerObj_) {
+        JNIEnv* env;
+        jvm_->GetEnv((void**)&env, JNI_VERSION_1_6);
+        env->DeleteGlobalRef(listenerObj_);
+    }
+}
+
+void PlayerEngine::setDataSource(int videoFd, const std::string& subtitlePath) {
+    videoFd_ = videoFd;
+    subtitlePath_ = subtitlePath;
+}
+
+void PlayerEngine::play(ANativeWindow* window) {
+    if (isPlaying_) {
+        isPaused_ = false; // 💡 이미 재생 중이면 일시정지만 해제
+        return;
+    }
+    window_ = window;
+    ANativeWindow_acquire(window_);
+    isPlaying_ = true;
+    renderThread_ = std::thread(&PlayerEngine::renderLoop, this);
+}
+
+void PlayerEngine::stop() {
+    if (!isPlaying_) return;
+    isPlaying_ = false;
+    if (renderThread_.joinable()) renderThread_.join();
+    if (window_) { ANativeWindow_release(window_); window_ = nullptr; }
+}
+
+void PlayerEngine::seekBy(double seconds) {
+    seekTargetOffset_ = seconds;
+    seekReq_ = true;
+}
+
+void PlayerEngine::setSpeed(float speed) {
+    playbackSpeed_ = speed > 0.0f ? speed : 1.0f;
+}
+
+void PlayerEngine::sendSubtitleToKotlin(const char* text) {
+    if (!jvm_ || !listenerObj_ || !subtitleMethodId_ || !text) return;
+    JNIEnv* env;
+    bool attached = false;
+    if (jvm_->GetEnv((void**)&env, JNI_VERSION_1_6) != JNI_OK) {
+        jvm_->AttachCurrentThread(&env, nullptr);
+        attached = true;
+    }
+    jstring jText = env->NewStringUTF(text);
+    env->CallVoidMethod(listenerObj_, subtitleMethodId_, jText);
+    env->DeleteLocalRef(jText);
+    if (attached) jvm_->DetachCurrentThread();
+}
+
+void PlayerEngine::pause() {
+
+    isPaused_ = true;
+}
+
+// [3. 메인 렌더링 루프]
+void PlayerEngine::renderLoop() {
+    LOGI("Player render loop started (AAudio Mode)");
+
+    int avio_buffer_size = 32768;
+    uint8_t* avio_buffer = (uint8_t*)av_malloc(avio_buffer_size);
+    AVIOContext* avio_ctx = avio_alloc_context(avio_buffer, avio_buffer_size, 0, (void*)(intptr_t)videoFd_, custom_read_packet, nullptr, custom_seek_packet);
+    fmt_ctx_ = avformat_alloc_context();
+    fmt_ctx_->pb = avio_ctx;
+
+    if (avformat_open_input(&fmt_ctx_, nullptr, nullptr, nullptr) < 0) return;
+    avformat_find_stream_info(fmt_ctx_, nullptr);
+
+    for (unsigned int i = 0; i < fmt_ctx_->nb_streams; i++) {
+        auto type = fmt_ctx_->streams[i]->codecpar->codec_type;
+        if (type == AVMEDIA_TYPE_VIDEO && video_stream_idx_ < 0) video_stream_idx_ = i;
+        else if (type == AVMEDIA_TYPE_SUBTITLE && sub_stream_idx_ < 0) sub_stream_idx_ = i;
+        else if (type == AVMEDIA_TYPE_AUDIO && audio_stream_idx_ < 0) audio_stream_idx_ = i;
+    }
+
+    // 비디오 초기화
+    if (video_stream_idx_ >= 0) {
+        auto par = fmt_ctx_->streams[video_stream_idx_]->codecpar;
+        auto codec = avcodec_find_decoder(par->codec_id);
+        video_codec_ctx_ = avcodec_alloc_context3(codec);
+        avcodec_parameters_to_context(video_codec_ctx_, par);
+        if (avcodec_open2(video_codec_ctx_, codec, nullptr) == 0) {
+            JNIEnv* env; jvm_->AttachCurrentThread(&env, nullptr);
+            if (videoSizeMethodId_) env->CallVoidMethod(listenerObj_, videoSizeMethodId_, video_codec_ctx_->width, video_codec_ctx_->height);
+            jvm_->DetachCurrentThread();
+        }
+    }
+
+    // 💡 [AAudio 초기화 복구]
+    if (audio_stream_idx_ >= 0) {
+        auto par = fmt_ctx_->streams[audio_stream_idx_]->codecpar;
+        auto codec = avcodec_find_decoder(par->codec_id);
+        audio_codec_ctx_ = avcodec_alloc_context3(codec);
+        avcodec_parameters_to_context(audio_codec_ctx_, par);
+        if (avcodec_open2(audio_codec_ctx_, codec, nullptr) == 0) {
+            AVChannelLayout out_ch; av_channel_layout_default(&out_ch, 2);
+            swr_alloc_set_opts2(&swr_ctx_, &out_ch, AV_SAMPLE_FMT_S16, 48000, &audio_codec_ctx_->ch_layout, audio_codec_ctx_->sample_fmt, audio_codec_ctx_->sample_rate, 0, nullptr);
+            swr_init(swr_ctx_);
+
+            AAudioStreamBuilder* builder;
+            AAudio_createStreamBuilder(&builder);
+            AAudioStreamBuilder_setFormat(builder, AAUDIO_FORMAT_PCM_I16);
+            AAudioStreamBuilder_setChannelCount(builder, 2);
+            AAudioStreamBuilder_setSampleRate(builder, 48000);
+            AAudioStreamBuilder_openStream(builder, &audio_stream_);
+            AAudioStream_requestStart(audio_stream_);
+            AAudioStreamBuilder_delete(builder);
+        }
+    }
+
+    AVFrame* frame = av_frame_alloc();
+    AVPacket* pkt = av_packet_alloc();
+    int last_win_w = 0, last_win_h = 0;
+
+    while (isPlaying_) {
+        if (isPaused_) {
+            std::this_thread::sleep_for(std::chrono::milliseconds(10));
+            continue; // 💡 일시정지 중이면 루프를 돌며 대기만 함
+        }
+        // [Seek 요청]
+        if (seekReq_) {
+            av_seek_frame(fmt_ctx_, -1, (currentPosSec_ + seekTargetOffset_) * AV_TIME_BASE, AVSEEK_FLAG_BACKWARD);
+            if (video_codec_ctx_) avcodec_flush_buffers(video_codec_ctx_);
+            if (audio_codec_ctx_) avcodec_flush_buffers(audio_codec_ctx_);
+            if (audio_stream_) { AAudioStream_requestFlush(audio_stream_); AAudioStream_requestStart(audio_stream_); }
+            seekReq_ = false;
+        }
+
+        float currentSpeed = playbackSpeed_.load();
+        if (av_read_frame(fmt_ctx_, pkt) < 0) break;
+
+        // [비디오 처리]
+        if (pkt->stream_index == video_stream_idx_) {
+            avcodec_send_packet(video_codec_ctx_, pkt);
+            while (avcodec_receive_frame(video_codec_ctx_, frame) == 0) {
+                currentPosSec_ = frame->pts * av_q2d(fmt_ctx_->streams[video_stream_idx_]->time_base);
+                if (window_) {
+                    int w = ANativeWindow_getWidth(window_), h = ANativeWindow_getHeight(window_);
+                    if (!sws_ctx_ || w != last_win_w || h != last_win_h) {
+                        if (sws_ctx_) sws_freeContext(sws_ctx_);
+                        sws_ctx_ = sws_getContext(frame->width, frame->height, video_codec_ctx_->pix_fmt, w, h, AV_PIX_FMT_RGBA, SWS_BILINEAR, nullptr, nullptr, nullptr);
+                        last_win_w = w; last_win_h = h;
+                    }
+                    ANativeWindow_Buffer buffer;
+                    if (ANativeWindow_lock(window_, &buffer, nullptr) == 0) {
+                        uint8_t* dst_data[4] = { (uint8_t*)buffer.bits, nullptr, nullptr, nullptr };
+                        int dst_line[4] = { buffer.stride * 4, 0, 0, 0 };
+                        if (sws_ctx_) sws_scale(sws_ctx_, frame->data, frame->linesize, 0, frame->height, dst_data, dst_line);
+                        ANativeWindow_unlockAndPost(window_);
+                    }
+                }
+            }
+            // 💡 배속 중이거나 오디오가 없으면 Sleep으로 속도 직접 조절
+            if (currentSpeed != 1.0f || audio_stream_idx_ < 0) {
+                std::this_thread::sleep_for(std::chrono::milliseconds((int)(16/currentSpeed)));
+            }
+        }
+            // [오디오 처리]
+        else if (pkt->stream_index == audio_stream_idx_) {
+            if (currentSpeed == 1.0f) { // 정배속일 때만 재생
+                avcodec_send_packet(audio_codec_ctx_, pkt);
+                while (avcodec_receive_frame(audio_codec_ctx_, frame) == 0) {
+                    if (swr_ctx_ && audio_stream_) {
+                        // 1. 출력될 샘플 수 계산
+                        int out_samples = swr_get_out_samples(swr_ctx_, frame->nb_samples);
+
+                        // 2. 버퍼 크기는 바이트 단위 (샘플 수 * 2채널 * 2바이트(16비트))
+                        uint8_t* out_buf = (uint8_t*)malloc(out_samples * 4);
+
+                        // 3. 변환 수행 (실제로 변환된 정확한 샘플 수를 반환받음)
+                        int converted_samples = swr_convert(swr_ctx_, &out_buf, out_samples,
+                                                            (const uint8_t**)frame->data, frame->nb_samples);
+
+                        if (converted_samples > 0) {
+                            // 💡 [핵심 수정] out_size(바이트) 대신 converted_samples(샘플 수)를 전달해야 함
+                            // 세 번째 인자는 'samples' 단위여야 합니다.
+                            AAudioStream_write(audio_stream_, out_buf, converted_samples, 1000000000);
+                        }
+                        free(out_buf);
+                    }
+                }
+            }
+        } else if (pkt->stream_index == sub_stream_idx_) {
+            AVSubtitle sub;
+            int got_sub = 0;
+            // 자막 패킷 디코딩
+            avcodec_decode_subtitle2(sub_codec_ctx_, &sub, &got_sub, pkt);
+            if (got_sub) {
+                for (unsigned int i = 0; i < sub.num_rects; i++) {
+                    // 일반 텍스트 자막 또는 ASS/SSA 스타일 자막 처리
+                    if (sub.rects[i]->type == SUBTITLE_TEXT && sub.rects[i]->text) {
+                        sendSubtitleToKotlin(sub.rects[i]->text);
+                    } else if (sub.rects[i]->type == SUBTITLE_ASS && sub.rects[i]->ass) {
+                        // ASS 자막의 경우 마크업 태그가 포함될 수 있음
+                        sendSubtitleToKotlin(sub.rects[i]->ass);
+                    }
+                }
+                avsubtitle_free(&sub); // 메모리 해제 필수
+            }
+        }
+        av_packet_unref(pkt);
+    }
+
+    // 자원 해제
+    if (audio_stream_) { AAudioStream_requestStop(audio_stream_); AAudioStream_close(audio_stream_); audio_stream_ = nullptr; }
+    av_frame_free(&frame);
+    av_packet_free(&pkt);
+    if (swr_ctx_) swr_free(&swr_ctx_);
+    if (sws_ctx_) sws_freeContext(sws_ctx_);
+    if (video_codec_ctx_) avcodec_free_context(&video_codec_ctx_);
+    if (audio_codec_ctx_) avcodec_free_context(&audio_codec_ctx_);
+    if (fmt_ctx_) avformat_close_input(&fmt_ctx_);
+    LOGI("Player loop finished gracefully.");
+}
\ No newline at end of file
diff --git a/app/src/main/cpp/PlayerEngine.h b/app/src/main/cpp/PlayerEngine.h
new file mode 100644
index 00000000..66d774d5
--- /dev/null
+++ b/app/src/main/cpp/PlayerEngine.h
@@ -0,0 +1,64 @@
+#pragma once
+#include <string>
+#include <thread>
+#include <atomic>
+#include <jni.h>
+#include <android/native_window.h>
+#include <aaudio/AAudio.h> // 💡 AAudio 추가
+
+extern "C" {
+#include <libavformat/avformat.h>
+#include <libavcodec/avcodec.h>
+#include <libswscale/swscale.h>
+#include <libswresample/swresample.h>
+#include <libavutil/opt.h>
+#include <libavutil/channel_layout.h>
+}
+
+class PlayerEngine {
+public:
+    PlayerEngine(JavaVM* vm, jobject listenerObj);
+    ~PlayerEngine();
+
+    void setDataSource(int videoFd, const std::string& subtitlePath);
+    void play(ANativeWindow* window);
+    void pause();
+    void stop();
+    void seekBy(double seconds);
+    void setSpeed(float speed);
+
+private:
+    void renderLoop();
+    void sendSubtitleToKotlin(const char* text);
+
+
+    int videoFd_ = -1;
+    std::string subtitlePath_;
+    std::atomic<bool> isPlaying_{false};
+    std::atomic<bool> isPaused_{false}; // 💡 일시정지 플래그 추가
+    std::thread renderThread_;
+    ANativeWindow* window_ = nullptr;
+
+    std::atomic<bool> seekReq_{false};
+    std::atomic<double> seekTargetOffset_{0.0};
+    std::atomic<float> playbackSpeed_{1.0f};
+    double currentPosSec_ = 0.0;
+
+    AVFormatContext* fmt_ctx_ = nullptr;
+    AVCodecContext* video_codec_ctx_ = nullptr;
+    AVCodecContext* sub_codec_ctx_ = nullptr;
+    AVCodecContext* audio_codec_ctx_ = nullptr;
+    SwsContext* sws_ctx_ = nullptr;
+    SwrContext* swr_ctx_ = nullptr;
+
+    int video_stream_idx_ = -1;
+    int sub_stream_idx_ = -1;
+    int audio_stream_idx_ = -1;
+
+    AAudioStream* audio_stream_ = nullptr; // 💡 AAudio 복구
+
+    JavaVM* jvm_ = nullptr;
+    jobject listenerObj_ = nullptr;
+    jmethodID subtitleMethodId_ = nullptr;
+    jmethodID videoSizeMethodId_ = nullptr;
+};
\ No newline at end of file
diff --git a/app/src/main/cpp/native_player.cpp b/app/src/main/cpp/native_player.cpp
new file mode 100644
index 00000000..6c48e246
--- /dev/null
+++ b/app/src/main/cpp/native_player.cpp
@@ -0,0 +1,85 @@
+//
+// Created by JIBUM HAN on 2026. 4. 9..
+//
+#include <jni.h>
+#include <android/native_window_jni.h>
+#include "PlayerEngine.h"
+
+// 기존 월페이퍼 코드 어딘가에 있는 전역 JavaVM 포인터를 가져다 씁니다.
+extern JavaVM* g_vm;
+
+// C++ 객체를 포인터로 변환하는 헬퍼 함수
+template<typename T>
+T* toPlayerNative(jlong handle) {
+    return reinterpret_cast<T*>(handle);
+}
+
+extern "C" {
+
+JNIEXPORT jlong JNICALL
+Java_bums_lunatic_launcher_player_NativePlayer_nativeInit(JNIEnv *env, jobject thiz) {
+    // 엔진 생성 시 JavaVM과 Kotlin 콜백 객체(thiz)를 전달합니다.
+    PlayerEngine* engine = new PlayerEngine(g_vm, thiz);
+    return reinterpret_cast<jlong>(engine);
+}
+
+JNIEXPORT void JNICALL
+Java_bums_lunatic_launcher_player_NativePlayer_nativeSeekBy(JNIEnv *env, jobject thiz, jlong handle, jdouble seconds) {
+    PlayerEngine* engine = toPlayerNative<PlayerEngine>(handle);
+    if (engine) engine->seekBy(seconds);
+}
+
+JNIEXPORT void JNICALL
+Java_bums_lunatic_launcher_player_NativePlayer_nativeSetSpeed(JNIEnv *env, jobject thiz, jlong handle, jfloat speed) {
+    PlayerEngine* engine = toPlayerNative<PlayerEngine>(handle);
+    if (engine) engine->setSpeed(speed);
+}
+
+
+JNIEXPORT void JNICALL
+Java_bums_lunatic_launcher_player_NativePlayer_nativeSetDataSource(JNIEnv *env, jobject thiz, jlong handle, jint videoFd, jstring jSubPath) {
+    PlayerEngine* engine = toPlayerNative<PlayerEngine>(handle);
+    if (engine) {
+        const char* subPath = env->GetStringUTFChars(jSubPath, nullptr);
+
+        // 엔진으로 FD 번호를 전달
+        engine->setDataSource(videoFd, subPath);
+
+        env->ReleaseStringUTFChars(jSubPath, subPath);
+    }
+}
+
+JNIEXPORT void JNICALL
+Java_bums_lunatic_launcher_player_NativePlayer_nativePause(JNIEnv *env, jobject thiz, jlong handle) {
+    PlayerEngine* engine = toPlayerNative<PlayerEngine>(handle);
+    if (engine) {
+        engine->pause(); // 💡 세미콜론 추가
+    }
+}
+
+
+JNIEXPORT void JNICALL
+Java_bums_lunatic_launcher_player_NativePlayer_nativePlay(JNIEnv *env, jobject thiz, jlong handle, jobject surface) {
+    PlayerEngine* engine = toPlayerNative<PlayerEngine>(handle);
+    if (engine && surface) {
+        ANativeWindow* window = ANativeWindow_fromSurface(env, surface);
+        // RGBA 포맷으로 버퍼 설정
+        ANativeWindow_setBuffersGeometry(window, 0, 0, WINDOW_FORMAT_RGBX_8888);
+        engine->play(window);
+        ANativeWindow_release(window);
+    }
+}
+
+JNIEXPORT void JNICALL
+Java_bums_lunatic_launcher_player_NativePlayer_nativeStop(JNIEnv *env, jobject thiz, jlong handle) {
+    PlayerEngine* engine = toPlayerNative<PlayerEngine>(handle);
+    if (engine) engine->stop();
+}
+
+JNIEXPORT void JNICALL
+Java_bums_lunatic_launcher_player_NativePlayer_nativeDestroy(JNIEnv *env, jobject thiz, jlong handle) {
+    PlayerEngine* engine = toPlayerNative<PlayerEngine>(handle);
+    if (engine) delete engine;
+}
+
+}
\ No newline at end of file
diff --git a/app/src/main/kotlin/bums/lunatic/launcher/home/CompletedFilesFragment.kt b/app/src/main/kotlin/bums/lunatic/launcher/home/CompletedFilesFragment.kt
index 5878ccc1..f0810cbb 100644
--- a/app/src/main/kotlin/bums/lunatic/launcher/home/CompletedFilesFragment.kt
+++ b/app/src/main/kotlin/bums/lunatic/launcher/home/CompletedFilesFragment.kt
@@ -21,13 +21,13 @@ import android.widget.Spinner
 import android.widget.TextView
 import android.widget.Toast
 import androidx.activity.OnBackPressedCallback
-import androidx.appcompat.app.AlertDialog
 import androidx.core.content.FileProvider
 import androidx.fragment.app.Fragment
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import bums.lunatic.launcher.R
+import bums.lunatic.launcher.player.PlayerActivity
 import com.bumptech.glide.Glide
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -166,7 +166,14 @@ class CompletedFilesFragment : Fragment() {
                         currentDir = file
                         loadFiles()
                     } else {
-                        openPrivateFile(requireContext(), file)
+                        if (extVideos.contains(file.extension.lowercase())) {
+                            val intent = Intent(requireContext(), PlayerActivity::class.java).apply {
+                                putExtra("VIDEO_PATH", file.absolutePath)
+                            }
+                            startActivity(intent)
+                        } else {
+                            openPrivateFile(requireContext(), file) // 이미지나 문서는 기존처럼
+                        }
                     }
                 }
             },
diff --git a/app/src/main/kotlin/bums/lunatic/launcher/home/GeckoWeb.kt b/app/src/main/kotlin/bums/lunatic/launcher/home/GeckoWeb.kt
index 58d303fb..42129ca6 100644
--- a/app/src/main/kotlin/bums/lunatic/launcher/home/GeckoWeb.kt
+++ b/app/src/main/kotlin/bums/lunatic/launcher/home/GeckoWeb.kt
@@ -339,12 +339,10 @@ open class GeckoWeb @JvmOverloads constructor(
             if (element.type == GeckoSession.ContentDelegate.ContextElement.TYPE_IMAGE ||
                 element.type == GeckoSession.ContentDelegate.ContextElement.TYPE_VIDEO) {
 
+                showContextMenu(pageUrl, mediaUrl)
+
                 // 로그인 확인 후 메뉴 표시
-                BookmarkUploader.loginAndGetToken(
-                    userId = "lunaticbum", userPw = "VioPup*383",
-                    onSuccess = { showContextMenu(pageUrl, mediaUrl); context.toast("로그인 성공") },
-                    onError = { context.toast("로그인 실패: $it") }
-                )
+
             } else {
                 super.onContextMenu(session, screenX, screenY, element)
             }
@@ -782,8 +780,18 @@ open class GeckoWeb @JvmOverloads constructor(
         val menuItems = arrayOf("이 미디어만 북마크", "페이지의 모든 이미지 북마크", "다운로드")
         AlertDialog.Builder(context).setTitle("작업 선택").setItems(menuItems) { _, which ->
             when (menuItems[which]) {
-                "이 미디어만 북마크" -> startBookmarkSaveProcessForSingleImage(pageUrl, mediaUrl)
-                "페이지의 모든 이미지 북마크" -> sendJsonMsg("fetchAllImages", "targetSrc" to mediaUrl)
+                "이 미디어만 북마크" ->
+                    BookmarkUploader.loginAndGetToken(
+                        userId = "lunaticbum", userPw = "VioPup*383",
+                        onSuccess = { context.toast("로그인 성공");startBookmarkSaveProcessForSingleImage(pageUrl, mediaUrl) },
+                        onError = { context.toast("로그인 실패: $it") }
+                    )
+                "페이지의 모든 이미지 북마크" ->
+                    BookmarkUploader.loginAndGetToken(
+                        userId = "lunaticbum", userPw = "VioPup*383",
+                        onSuccess = { context.toast("로그인 성공");sendJsonMsg("fetchAllImages", "targetSrc" to mediaUrl) },
+                        onError = { context.toast("로그인 실패: $it") }
+                    )
                 "다운로드" -> CommonUtils.downloadFileWithOkHttp(context, Uri.parse(pageUrl), mediaUrl)
             }
         }.show()
diff --git a/app/src/main/kotlin/bums/lunatic/launcher/home/tokiz/TokiFragment.kt b/app/src/main/kotlin/bums/lunatic/launcher/home/tokiz/TokiFragment.kt
index 90bd7252..d3dd808e 100644
--- a/app/src/main/kotlin/bums/lunatic/launcher/home/tokiz/TokiFragment.kt
+++ b/app/src/main/kotlin/bums/lunatic/launcher/home/tokiz/TokiFragment.kt
@@ -617,10 +617,10 @@ class TokiFragment : RemoteGestureFragment(), PagedTextViewInterface,KeyEventHan
         }
     }
 
-    private var originalVolume: Int = -1
-    private val audioManager by lazy {
-        requireContext().getSystemService(Context.AUDIO_SERVICE) as AudioManager
-    }
+//    private var originalVolume: Int = -1
+//    private val audioManager by lazy {
+//        requireContext().getSystemService(Context.AUDIO_SERVICE) as AudioManager
+//    }
     override fun onHiddenChanged(hidden: Boolean) {
         super.onHiddenChanged(hidden)
         saveContinuation = false
@@ -836,21 +836,21 @@ class TokiFragment : RemoteGestureFragment(), PagedTextViewInterface,KeyEventHan
 
     override fun onResume() {
         super.onResume()
-        originalVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC)
-        if (contentsType.contains("youtube")) {
-            // 미디어 볼륨을 0으로 설정 (FLAG_SHOW_UI를 0으로 주면 볼륨 바가 뜨지 않음)
-            audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 0, 0)
-        }
-
-        Blog.LOGE("RssHome 활성화: 미디어 볼륨 0 설정 (이전 볼륨: $originalVolume)")
+//        originalVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC)
+//        if (contentsType.contains("youtube")) {
+//            // 미디어 볼륨을 0으로 설정 (FLAG_SHOW_UI를 0으로 주면 볼륨 바가 뜨지 않음)
+//            audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 0, 0)
+//        }
+//
+//        Blog.LOGE("RssHome 활성화: 미디어 볼륨 0 설정 (이전 볼륨: $originalVolume)")
     }
 
     override fun onPause() {
         super.onPause()
-        if (originalVolume != -1 && contentsType.contains("youtube")) {
-            audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, originalVolume, 0)
-            Blog.LOGE("RssHome 비활성화: 미디어 볼륨 복구 ($originalVolume)")
-        }
+//        if (originalVolume != -1 && contentsType.contains("youtube")) {
+//            audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, originalVolume, 0)
+//            Blog.LOGE("RssHome 비활성화: 미디어 볼륨 복구 ($originalVolume)")
+//        }
     }
 
     fun getLastinfo() : LastInfo?  {
diff --git a/app/src/main/kotlin/bums/lunatic/launcher/player/NativePlayer.kt b/app/src/main/kotlin/bums/lunatic/launcher/player/NativePlayer.kt
new file mode 100644
index 00000000..2c6e0fef
--- /dev/null
+++ b/app/src/main/kotlin/bums/lunatic/launcher/player/NativePlayer.kt
@@ -0,0 +1,53 @@
+package bums.lunatic.launcher.player
+
+import android.view.Surface
+
+class NativePlayer {
+    private var nativeHandle: Long = 0
+    private var subtitleCallback: ((String) -> Unit)? = null
+    private var videoSizeCallback: ((Int, Int) -> Unit)? = null
+
+    fun initialize(): Boolean {
+        nativeHandle = nativeInit()
+        return nativeHandle != 0L
+    }
+
+    fun setDataSource(videoFd: Int, subPath: String) = nativeSetDataSource(nativeHandle, videoFd, subPath)
+    fun play(surface: Surface) = nativePlay(nativeHandle, surface)
+    fun stop() = nativeStop(nativeHandle)
+    fun seekBy(sec: Double) = nativeSeekBy(nativeHandle, sec)
+    fun setSpeed(speed: Float) = nativeSetSpeed(nativeHandle, speed)
+    fun pause() {nativePause(nativeHandle)}
+
+    @Suppress("unused")
+    private fun onSubtitleTextDecoded(text: String) {
+        subtitleCallback?.invoke(text)
+    }
+
+    @Suppress("unused")
+    private fun onVideoSizeChanged(w: Int, h: Int) {
+        videoSizeCallback?.invoke(w, h)
+    }
+
+    fun setSubtitleCallback(cb: (String) -> Unit) { subtitleCallback = cb }
+    fun setVideoSizeCallback(cb: (Int, Int) -> Unit) { videoSizeCallback = cb }
+
+    fun destroy() {
+        if (nativeHandle != 0L) {
+            nativeDestroy(nativeHandle)
+            nativeHandle = 0L
+        }
+    }
+    private external fun nativePause(h: Long)
+    private external fun nativeInit(): Long
+    private external fun nativeSetDataSource(h: Long, fd: Int, sub: String)
+    private external fun nativePlay(h: Long, s: Surface)
+    private external fun nativeStop(h: Long)
+    private external fun nativeDestroy(h: Long)
+    private external fun nativeSeekBy(h: Long, s: Double)
+    private external fun nativeSetSpeed(h: Long, sp: Float)
+
+    companion object {
+        init { System.loadLibrary("native_renderer") }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/kotlin/bums/lunatic/launcher/player/PlayerActivity.kt b/app/src/main/kotlin/bums/lunatic/launcher/player/PlayerActivity.kt
new file mode 100644
index 00000000..dcf6e610
--- /dev/null
+++ b/app/src/main/kotlin/bums/lunatic/launcher/player/PlayerActivity.kt
@@ -0,0 +1,267 @@
+package bums.lunatic.launcher.player
+
+import android.content.pm.ActivityInfo
+import android.graphics.Color
+import android.graphics.SurfaceTexture
+import android.os.Bundle
+import android.os.ParcelFileDescriptor
+import android.util.Log
+import android.view.*
+import android.widget.FrameLayout
+import android.widget.ImageButton
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+import bums.lunatic.launcher.R
+import kotlinx.coroutines.*
+import java.io.File
+
+class PlayerActivity : AppCompatActivity(), TextureView.SurfaceTextureListener {
+
+    private lateinit var videoTextureView: TextureView
+    private lateinit var subtitleView: TextView
+    private lateinit var btnRotate: ImageButton
+    private lateinit var btnHideVideo: ImageButton
+
+    private var nativePlayer: NativePlayer? = null
+    private var videoPath: String = ""
+    private var subtitlePath: String = ""
+
+    private var isPlaying = true
+    private var isVideoHidden = false
+    private var leftLongPressJob: Job? = null
+
+    private var videoWidth: Int = 0
+    private var videoHeight: Int = 0
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        // 1. 데이터 확인
+        videoPath = intent.getStringExtra("VIDEO_PATH") ?: ""
+        if (videoPath.isEmpty()) { finish(); return }
+        subtitlePath = findSubtitleFile(videoPath)
+
+        // 2. UI 동적 생성 및 구성
+        setupUI()
+
+        // 3. 네이티브 플레이어 초기화
+        nativePlayer = NativePlayer().apply {
+            initialize()
+            // 영상 해상도에 따른 화면 크기 조절 콜백
+            setVideoSizeCallback { width, height ->
+                videoWidth = width
+                videoHeight = height
+                adjustVideoAspectRatio(width, height)
+            }
+            // 자막 출력 콜백
+            setSubtitleCallback { text ->
+                runOnUiThread {
+                    subtitleView.text = cleanSubtitleText(text)
+                    subtitleView.visibility = if (text.isEmpty()) View.INVISIBLE else View.VISIBLE
+                }
+            }
+        }
+
+        // 4. 제스처 설정
+        setupGestures()
+    }
+
+    private fun setupUI() {
+        val root = FrameLayout(this).apply { setBackgroundColor(Color.BLACK) }
+
+        // 비디오 뷰
+        videoTextureView = TextureView(this).apply {
+            surfaceTextureListener = this@PlayerActivity
+        }
+
+        // 자막 뷰
+        subtitleView = TextView(this).apply {
+            setTextColor(Color.WHITE)
+            textSize = 22f
+            setShadowLayer(8f, 0f, 0f, Color.BLACK)
+            gravity = Gravity.CENTER_HORIZONTAL or Gravity.BOTTOM
+            setPadding(40, 0, 40, 180)
+        }
+
+        // 제스처 감지용 투명 레이어 (삼등분)
+        val gestureLayer = android.widget.LinearLayout(this).apply {
+            orientation = android.widget.LinearLayout.HORIZONTAL
+            weightSum = 3f
+        }
+
+        val leftZone = View(this).apply { id = View.generateViewId() }
+        val centerZone = View(this).apply { id = View.generateViewId() }
+        val rightZone = View(this).apply { id = View.generateViewId() }
+
+        gestureLayer.addView(leftZone, android.widget.LinearLayout.LayoutParams(0, -1, 1f))
+        gestureLayer.addView(centerZone, android.widget.LinearLayout.LayoutParams(0, -1, 1f))
+        gestureLayer.addView(rightZone, android.widget.LinearLayout.LayoutParams(0, -1, 1f))
+
+        // 컨트롤 버튼 (좌측 하단 회전, 우측 하단 숨기기)
+        val controls = FrameLayout(this)
+        btnRotate = ImageButton(this).apply {
+            setImageResource(android.R.drawable.ic_menu_rotate) // 기본 리소스 사용
+            setBackgroundColor(Color.TRANSPARENT)
+            setOnClickListener { toggleOrientation() }
+        }
+        btnHideVideo = ImageButton(this).apply {
+            setImageResource(android.R.drawable.ic_menu_close_clear_cancel)
+            setBackgroundColor(Color.TRANSPARENT)
+            setOnClickListener { toggleVideoVisibility() }
+        }
+
+        root.addView(videoTextureView, FrameLayout.LayoutParams(-2, -2, Gravity.CENTER))
+        root.addView(subtitleView)
+        root.addView(gestureLayer)
+
+        // 버튼 배치
+        root.addView(btnRotate, FrameLayout.LayoutParams(150, 150, Gravity.BOTTOM or Gravity.START).apply { setMargins(30,0,0,30) })
+        root.addView(btnHideVideo, FrameLayout.LayoutParams(150, 150, Gravity.BOTTOM or Gravity.END).apply { setMargins(0,0,30,30) })
+
+        setContentView(root)
+        hideSystemUI()
+    }
+
+    private fun setupGestures() {
+        val gestureLayer = (videoTextureView.parent as FrameLayout).getChildAt(2) as android.widget.LinearLayout
+        val left = gestureLayer.getChildAt(0)
+        val center = gestureLayer.getChildAt(1)
+        val right = gestureLayer.getChildAt(2)
+
+        // 1. 가운데: 재생/일시정지
+        center.setOnClickListener {
+            isPlaying = !isPlaying
+            if (isPlaying) nativePlayer?.play(Surface(videoTextureView.surfaceTexture))
+            else nativePlayer?.pause()
+        }
+
+        // 2. 오른쪽: 롱프레스 4배속
+        val rightDetector = GestureDetector(this, object : GestureDetector.SimpleOnGestureListener() {
+            override fun onLongPress(e: MotionEvent) { nativePlayer?.setSpeed(4.0f) }
+            override fun onSingleTapUp(e: MotionEvent): Boolean {
+                nativePlayer?.seekBy(20.0) // 탭하면 10초 앞으로
+                return true
+            }
+        })
+        right.setOnTouchListener { v, event ->
+            rightDetector.onTouchEvent(event)
+            if (event.action == MotionEvent.ACTION_UP || event.action == MotionEvent.ACTION_CANCEL) {
+                nativePlayer?.setSpeed(1.0f)
+            }
+            true
+        }
+
+        // 3. 왼쪽: 롱프레스 주기적 뒤로가기
+        val leftDetector = GestureDetector(this, object : GestureDetector.SimpleOnGestureListener() {
+            override fun onLongPress(e: MotionEvent) {
+                leftLongPressJob = CoroutineScope(Dispatchers.Main).launch {
+                    while (isActive) {
+                        nativePlayer?.seekBy(-20.0)
+                        delay(500)
+                    }
+                }
+            }
+            override fun onSingleTapUp(e: MotionEvent): Boolean {
+                nativePlayer?.seekBy(-10.0) // 탭하면 10초 뒤로
+                return true
+            }
+        })
+        left.setOnTouchListener { v, event ->
+            leftDetector.onTouchEvent(event)
+            if (event.action == MotionEvent.ACTION_UP || event.action == MotionEvent.ACTION_CANCEL) {
+                leftLongPressJob?.cancel()
+            }
+            true
+        }
+    }
+
+    override fun onConfigurationChanged(newConfig: android.content.res.Configuration) {
+        super.onConfigurationChanged(newConfig)
+
+        // 시스템 UI(상태바 등)를 다시 숨깁니다.
+        hideSystemUI()
+
+        // 저장해둔 영상 해상도가 있다면 현재 바뀐 화면 크기에 맞춰 다시 정렬합니다.
+        if (videoWidth > 0 && videoHeight > 0) {
+            adjustVideoAspectRatio(videoWidth, videoHeight)
+        }
+    }
+
+    private fun adjustVideoAspectRatio(videoW: Int, videoH: Int) {
+        runOnUiThread {
+            // 1. 현재 기기의 실제 가용 화면 크기를 가져옵니다.
+            val displayMetrics = resources.displayMetrics
+            val screenW = displayMetrics.widthPixels
+            val screenH = displayMetrics.heightPixels
+
+            // 2. 종횡비를 계산합니다.
+            val videoRatio = videoW.toFloat() / videoH.toFloat()
+            val screenRatio = screenW.toFloat() / screenH.toFloat()
+
+            val lp = videoTextureView.layoutParams as FrameLayout.LayoutParams
+
+            if (videoRatio > screenRatio) {
+                // 💡 영상이 화면보다 더 가로로 긴 경우 (가로를 꽉 채우고 세로는 비율대로 축소)
+                lp.width = screenW
+                lp.height = (screenW / videoRatio).toInt()
+            } else {
+                // 💡 영상이 화면보다 더 세로로 긴 경우 (세로를 꽉 채우고 가로는 비율대로 축소)
+                lp.width = (screenH * videoRatio).toInt()
+                lp.height = screenH
+            }
+
+            // 3. 뷰를 화면 정중앙에 배치합니다.
+            lp.gravity = Gravity.CENTER
+            videoTextureView.layoutParams = lp
+
+            Log.d("Player", "Video Resized: ${lp.width}x${lp.height} for Screen: ${screenW}x${screenH}")
+        }
+    }
+
+    private fun toggleOrientation() {
+        requestedOrientation = if (requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE)
+            ActivityInfo.SCREEN_ORIENTATION_PORTRAIT else ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE
+    }
+
+    private fun toggleVideoVisibility() {
+        isVideoHidden = !isVideoHidden
+        videoTextureView.visibility = if (isVideoHidden) View.INVISIBLE else View.VISIBLE
+    }
+
+    private fun findSubtitleFile(videoPath: String): String {
+        val file = File(videoPath)
+        val name = file.nameWithoutExtension
+        val extensions = listOf("srt", "ass", "smi")
+        for (ext in extensions) {
+            val sub = File(file.parent, "$name.$ext")
+            if (sub.exists()) return sub.absolutePath
+        }
+        return ""
+    }
+
+    private fun cleanSubtitleText(text: String): String = text.replace(Regex("\\{.*?\\}"), "")
+
+    override fun onSurfaceTextureAvailable(st: SurfaceTexture, w: Int, h: Int) {
+        val file = File(videoPath)
+        if (file.exists()) {
+            val pfd = ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY)
+            nativePlayer?.setDataSource(pfd.detachFd(), subtitlePath)
+            nativePlayer?.play(Surface(st))
+        }
+    }
+
+    private fun hideSystemUI() {
+        window.decorView.systemUiVisibility = (View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
+                or View.SYSTEM_UI_FLAG_FULLSCREEN or View.SYSTEM_UI_FLAG_HIDE_NAVIGATION)
+    }
+
+    override fun onSurfaceTextureSizeChanged(st: SurfaceTexture, w: Int, h: Int) {}
+    override fun onSurfaceTextureDestroyed(st: SurfaceTexture): Boolean { nativePlayer?.stop(); return true }
+    override fun onSurfaceTextureUpdated(st: SurfaceTexture) {}
+
+    override fun onDestroy() {
+        super.onDestroy()
+        nativePlayer?.destroy()
+        leftLongPressJob?.cancel()
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_player.xml b/app/src/main/res/layout/activity_player.xml
new file mode 100644
index 00000000..77d9ef65
--- /dev/null
+++ b/app/src/main/res/layout/activity_player.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file