Update api/ltx_server.py

api/ltx_server.py

@@ -460,63 +460,70 @@ class VideoService:
     
         poda = crossfade_frames
         total_partes = len(video_paths)
-        video_anterior_fade_fim = None
+        video_fade_fim = None
+        video_fade_ini = None
         nova_lista = []
     
         print(f"[DEBUG] Iniciando pipeline com {total_partes} vídeos e {poda} frames de crossfade")
     
         for i in range(total_partes):
             base = os.path.splitext(os.path.basename(video_paths[i]))[0]
-            video_clone = os.path.join(pasta, f"{base}_clone_{i}.mp4")
-            shutil.copy(video_paths[i], video_clone)
-    
+        
             # --- PODA ---
             video_podado = os.path.join(pasta, f"{base}_podado_{i}.mp4")
             
-            total_frames = self._get_total_frames(video_clone)
-            start_frame = total_frames - poda
-        
-            video_podado = os.path.join(pasta, f"{base}_podado_{i}.mp4")
-    
+
+            if i<total_partes-1:
+                end_frame = self._get_total_frames(base) - poda
+            else:
+                print(f"[DEBUG] ultima iteracao")
+                end_frame = self._get_total_frames(base)
+            
+            if i>0:
+                start_frame = poda
+            else:
+                start_frame = 0
+                print(f"[DEBUG] primeira iteracao")
+                
             cmd_fim = (
-               f'ffmpeg -y -hide_banner -loglevel error -i "{video_clone}" '
-               f'-vf "trim=start_frame={start_frame}:end_frame={total_frames},setpts=PTS-STARTPTS" '
+               f'ffmpeg -y -hide_banner -loglevel error -i "{base}" '
+               f'-vf "trim=start_frame={start_frame}:end_frame={end_frame},setpts=PTS-STARTPTS" '
                f'-an "{video_podado}"'
             )
             subprocess.run(cmd_fim, shell=True, check=True)
             nova_lista.append(video_podado)
-             
-            # --- FADE_INI ---
-            video_fade_ini = None
+            
+        
+            # --- FADE_INI --- 
             if i > 0:
                 video_fade_ini = os.path.join(pasta, f"{base}_fade_ini_{i}.mp4")
                 cmd_ini = (
-                    f'ffmpeg -y -hide_banner -loglevel error -i "{video_clone}" '
+                    f'ffmpeg -y -hide_banner -loglevel error -i "{base}" '
                     f'-vf "trim=end_frame={poda},setpts=PTS-STARTPTS" -an "{video_fade_ini}"'
                 )
                 subprocess.run(cmd_ini, shell=True, check=True)
                 
             # --- TRANSIÇÃO ---
-            if video_anterior_fade_fim and video_fade_ini:
-                transicao = os.path.join(pasta, f"transicao_{i-1}_{i}.mp4")
+            if video_fade_fim and video_fade_ini:
+                video_fade  = os.path.join(pasta, f"transicao_{i-1}_{i}.mp4")
                 cmd_blend = (
                     f'ffmpeg -y -hide_banner -loglevel error '
-                    f'-i "{video_anterior_fade_fim}" -i "{video_fade_ini}" '
+                    f'-i "{video_fade_fim}" -i "{video_fade_ini}" '
                     f'-filter_complex "[0:v][1:v]blend=all_expr=\'A*(1-T/{poda})+B*(T/{poda})\',format=yuv420p" '
-                    f'-frames:v {poda} "{transicao}"'
+                    f'-frames:v {poda} "{video_fade}"'
                 )
                 subprocess.run(cmd_blend, shell=True, check=True)
-                nova_lista.append(transicao)
+                nova_lista.append(video_fade)
                 
             # --- FADE_FIM ---
             if i < total_partes - 1:
                 video_fade_fim = os.path.join(pasta, f"{base}_fade_fim_{i}.mp4")
-            
-                total_frames = self._get_total_frames(video_clone)
-                start_frame = total_frames - poda
-                cmd_fim = f'ffmpeg -y -hide_banner -loglevel error -i "{video_clone}" -vf "trim=start_frame={start_frame},setpts=PTS-STARTPTS" -an "{video_fade_fim}"'
+                cmd_fim = (
+                    f'ffmpeg -y -hide_banner -loglevel error '
+                    f'-i "{base}" -vf "trim=start_frame=-{poda},setpts=PTS-STARTPTS" '
+                    f'-an "{video_fade_fim}"'
+                )
                 subprocess.run(cmd_fim, shell=True, check=True)
-                video_anterior_fade_fim = video_fade_fim
                 
         print(f"[DEBUG] Nova lista finalizada com {len(nova_lista)} partes.")
         print(f"[DEBUG] {nova_lista}")