please merge

vr180_matting/video_processor.py

@@ -398,39 +398,35 @@ class VideoProcessor:
             overlap_frames: Number of overlapping frames
             audio_source: Audio source file for final video
         """
-        from .streaming_video_writer import StreamingVideoWriter
-        
         if not chunk_files:
             raise ValueError("No chunk files to merge")
             
         print(f"🎬 Streaming merge: {len(chunk_files)} chunks → {output_path}")
         
-        # Initialize streaming writer
+        # Use simple concatenation approach - load and merge all frames sequentially
-        writer = StreamingVideoWriter(
+        all_frames = []
-            output_path=output_path,
-            fps=self.video_info['fps'],
-            audio_source=audio_source
-        )
         
         try:
             # Process each chunk without accumulation
             for i, chunk_file in enumerate(chunk_files):
-                print(f"📼 Processing chunk {i+1}/{len(chunk_files)}: {chunk_file.name}")
+                print(f"📼 Loading chunk {i+1}/{len(chunk_files)}: {chunk_file.name}")
                 
                 # Load chunk (this is the only copy in memory)
                 chunk_data = np.load(str(chunk_file))
                 frames = chunk_data['frames'].tolist()  # Convert to list of arrays
                 chunk_data.close()
                 
-                # Write chunk with streaming writer
+                # Handle overlap blending (simple approach - skip overlapping frames from previous chunks)
-                writer.write_chunk(
+                if i > 0 and overlap_frames > 0:
-                    frames=frames,
+                    # Skip the first overlap_frames from this chunk (they overlap with previous)
-                    chunk_index=i,
+                    frames = frames[overlap_frames:]
-                    overlap_frames=overlap_frames if i > 0 else 0,
+                    print(f"   ✂️  Skipped {overlap_frames} overlapping frames")
-                    blend_with_previous=(i > 0 and overlap_frames > 0)
-                )
                 
-                # Immediately free memory
+                # Add frames to final sequence
+                all_frames.extend(frames)
+                print(f"   ✅ Added {len(frames)} frames (total: {len(all_frames)})")
+                
+                # Immediately free chunk memory
                 del frames, chunk_data
                 
                 # Delete chunk file to free disk space
@@ -443,16 +439,67 @@ class VideoProcessor:
                 # Aggressive cleanup every chunk
                 self._aggressive_memory_cleanup(f"After processing chunk {i}")
                 
-            # Finalize the video
+            # Save final video using existing method
-            writer.finalize()
+            print(f"📹 Saving final video with {len(all_frames)} frames...")
+            self.save_video(all_frames, output_path)
+            
+            # Add audio if provided
+            if audio_source:
+                self._add_audio_to_video(output_path, audio_source)
             
         except Exception as e:
             print(f"❌ Streaming merge failed: {e}")
-            writer.cleanup()
+            # Cleanup
+            if 'all_frames' in locals():
+                del all_frames
+            gc.collect()
             raise
             
+        finally:
+            # Cleanup
+            if 'all_frames' in locals():
+                del all_frames
+            gc.collect()
+            
         print(f"✅ Streaming merge complete: {output_path}")
     
+    def _add_audio_to_video(self, video_path: str, audio_source: str):
+        """Add audio to video using ffmpeg"""
+        import subprocess
+        import tempfile
+        
+        try:
+            # Create temporary file for output with audio
+            temp_path = Path(video_path).with_suffix('.temp.mp4')
+            
+            cmd = [
+                'ffmpeg', '-y',
+                '-i', str(video_path),    # Input video (no audio)
+                '-i', str(audio_source),  # Input audio source
+                '-c:v', 'copy',           # Copy video without re-encoding
+                '-c:a', 'aac',            # Encode audio as AAC
+                '-map', '0:v:0',          # Map video from first input
+                '-map', '1:a:0',          # Map audio from second input
+                '-shortest',              # Match shortest stream duration
+                str(temp_path)
+            ]
+            
+            print(f"🎵 Adding audio: {audio_source} → {video_path}")
+            result = subprocess.run(cmd, capture_output=True, text=True)
+            
+            if result.returncode != 0:
+                print(f"⚠️  Audio addition failed: {result.stderr}")
+                # Keep original video without audio
+                return
+            
+            # Replace original with audio version
+            Path(video_path).unlink()
+            temp_path.rename(video_path)
+            print(f"✅ Audio added successfully")
+            
+        except Exception as e:
+            print(f"⚠️  Could not add audio: {e}")
+    
     def merge_overlapping_chunks(self, 
                                 chunk_results: List[List[np.ndarray]], 
                                 overlap_frames: int) -> List[np.ndarray]: