Support multiple prompts

src/maxdiffusion/configs/base_wan_14b.yml

@@ -380,6 +380,7 @@ profiler_steps: 10
 enable_jax_named_scopes: False
 
 # Generation parameters
+prompt_file: ""
 prompt: "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window."
 prompt_2: "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window."
 negative_prompt: "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards"

src/maxdiffusion/configs/base_wan_1_3b.yml

@@ -333,6 +333,7 @@ profiler_steps: 10
 enable_jax_named_scopes: False
 
 # Generation parameters
+prompt_file: ""
 prompt: "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window."
 prompt_2: "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window."
 negative_prompt: "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards"

src/maxdiffusion/configs/base_wan_27b.yml

@@ -353,6 +353,7 @@ profiler_steps: 10
 enable_jax_named_scopes: False
 
 # Generation parameters
+prompt_file: ""
 prompt: "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window."
 prompt_2: "A cat and a dog baking a cake together in a kitchen. The cat is carefully measuring flour, while the dog is stirring the batter with a wooden spoon. The kitchen is cozy, with sunlight streaming through the window."
 negative_prompt: "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards"

src/maxdiffusion/configs/base_wan_animate.yml

@@ -343,6 +343,7 @@ profiler_steps: 10
 enable_jax_named_scopes: False
 
 # Generation parameters
+prompt_file: ""
 prompt: "The person from the reference image follows the motion from the driving videos with natural body movement, stable identity, expressive face, cinematic framing, and realistic lighting."
 negative_prompt: "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards"
 height: 720

src/maxdiffusion/configs/base_wan_i2v_14b.yml

@@ -345,6 +345,7 @@ profiler_steps: 10
 enable_jax_named_scopes: False
 
 # Generation parameters
+prompt_file: ""
 prompt: "An astronaut hatching from an egg, on the surface of the moon, the darkness and depth of space realised in the background. They are raising their left arm for a thumbs up. High quality, ultrarealistic detail and breath-taking movie-like camera shot." #LoRA prompt "An astronaut hatching from an egg, on the surface of the moon, the darkness and depth of space realised in the background. Appearing behind him is a giant, translucent, pink spiritual manifestation (faxiang) that is synchronized with the man's action and pose."
 prompt_2: "An astronaut hatching from an egg, on the surface of the moon, the darkness and depth of space realised in the background. High quality, ultrarealistic detail and breath-taking movie-like camera shot." #LoRA prompt "An astronaut hatching from an egg, on the surface of the moon, the darkness and depth of space realised in the background. Appearing behind him is a giant, translucent, pink spiritual manifestation (faxiang) that is synchronized with the man's action and pose."
 negative_prompt: "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards"

src/maxdiffusion/configs/base_wan_i2v_27b.yml

@@ -346,6 +346,7 @@ profiler_steps: 10
 enable_jax_named_scopes: False
 
 # Generation parameters
+prompt_file: ""
 prompt: "An astronaut hatching from an egg, on the surface of the moon, the darkness and depth of space realised in the background. They are raising their left arm for a thumbs up. High quality, ultrarealistic detail and breath-taking movie-like camera shot." #LoRA prompt "orbit 180 around an astronaut on the moon, the darkness and depth of space realised in the background. High quality, ultrarealistic detail and breath-taking movie-like camera shot."
 prompt_2: "An astronaut hatching from an egg, on the surface of the moon, the darkness and depth of space realised in the background. High quality, ultrarealistic detail and breath-taking movie-like camera shot." #LoRA prompt "orbit 180 around an astronaut on the moon, the darkness and depth of space realised in the background. High quality, ultrarealistic detail and breath-taking movie-like camera shot."
 negative_prompt: "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards"

src/maxdiffusion/configs/ltx2_3_video.yml

@@ -56,6 +56,7 @@ use_cross_timestep: true
 spatio_temporal_guidance_blocks: [28]
 fps: 24
 pipeline_type: multi-scale
+prompt_file: ""
 prompt: "A man in a brightly lit room talks on a vintage telephone. In a low, heavy voice, he says, 'I understand. I won't call again. Goodbye.' He hangs up the receiver and looks down with a sad expression. He holds the black rotary phone to his right ear with his right hand, his left hand holding a rocks glass with amber liquid. He wears a brown suit jacket over a white shirt, and a gold ring on his left ring finger. His short hair is neatly combed, and he has light skin with visible wrinkles around his eyes. The camera remains stationary, focused on his face and upper body. The room is brightly lit by a warm light source off-screen to the left, casting shadows on the wall behind him. The scene appears to be from a dramatic movie."
 negative_prompt: "shaky, glitchy, low quality, worst quality, deformed, distorted, disfigured, motion smear, motion artifacts, fused fingers, bad anatomy, weird hand, ugly, transition, static."
 height: 512

src/maxdiffusion/configs/ltx2_video.yml

@@ -63,6 +63,7 @@ spatio_temporal_guidance_blocks: []
 noise_scale: 1.0
 fps: 24
 pipeline_type: multi-scale
+prompt_file: ""
 prompt: "A man in a brightly lit room talks on a vintage telephone. In a low, heavy voice, he says, 'I understand. I won't call again. Goodbye.' He hangs up the receiver and looks down with a sad expression. He holds the black rotary phone to his right ear with his right hand, his left hand holding a rocks glass with amber liquid. He wears a brown suit jacket over a white shirt, and a gold ring on his left ring finger. His short hair is neatly combed, and he has light skin with visible wrinkles around his eyes. The camera remains stationary, focused on his face and upper body. The room is brightly lit by a warm light source off-screen to the left, casting shadows on the wall behind him. The scene appears to be from a dramatic movie."
 negative_prompt: "shaky, glitchy, low quality, worst quality, deformed, distorted, disfigured, motion smear, motion artifacts, fused fingers, bad anatomy, weird hand, ugly, transition, static."
 height: 512

src/maxdiffusion/configs/ltx_video.yml

@@ -24,6 +24,7 @@ sampler: "from_checkpoint"
 
 # Generation parameters
 pipeline_type: multi-scale
+prompt_file: ""
 prompt: "A man in a dimly lit room talks on a vintage telephone, hangs up, and looks down with a sad expression. He holds the black rotary phone to his right ear with his right hand, his left hand holding a rocks glass with amber liquid. He wears a brown suit jacket over a white shirt, and a gold ring on his left ring finger. His short hair is neatly combed, and he has light skin with visible wrinkles around his eyes. The camera remains stationary, focused on his face and upper body. The room is dark, lit only by a warm light source off-screen to the left, casting shadows on the wall behind him. The scene appears to be from a movie."
 #negative_prompt: "Bright tones, overexposed, static, blurred details, subtitles, style, works, paintings, images, static, overall gray, worst quality, low quality, JPEG compression residue, ugly, incomplete, extra fingers, poorly drawn hands, poorly drawn faces, deformed, disfigured, misshapen limbs, fused fingers, still picture, messy background, three legs, many people in the background, walking backwards"
 height: 512

src/maxdiffusion/generate_ltx2.py

@@ -302,12 +302,17 @@ def run(config, pipeline=None, filename_prefix="", commit_hash=None):
 
   s0 = time.perf_counter()
 
-  # Using global_batch_size_to_train_on to map prompts
-  prompt = getattr(config, "prompt", "A cat playing piano")
-  prompt = [prompt] * getattr(config, "global_batch_size_to_train_on", 1)
+  # Load prompts from prompt_file or default prompt
+  prompt_file = getattr(config, "prompt_file", "")
+  default_prompt = getattr(config, "prompt", "A cat playing piano")
+  prompts = max_utils.load_prompts(prompt_file, default_prompt=default_prompt)
+  batch_size = getattr(config, "global_batch_size_to_train_on", 1)
+  is_multi_prompt = len(prompts) > 1 or bool(prompt_file)
 
-  negative_prompt = getattr(config, "negative_prompt", "")
-  negative_prompt = [negative_prompt] * getattr(config, "global_batch_size_to_train_on", 1)
+  # Using global_batch_size_to_train_on to map prompts
+  warmup_prompt = [prompts[0]] * batch_size
+  negative_prompt_str = getattr(config, "negative_prompt", "")
+  warmup_negative_prompt = [negative_prompt_str] * batch_size
 
   max_logging.log(
       f"Num steps: {config.num_inference_steps}, height: {config.height}, width: {config.width}, frames: {config.num_frames}"
@@ -322,6 +327,7 @@ def run(config, pipeline=None, filename_prefix="", commit_hash=None):
   max_logging.log(f"hardware: {jax.devices()[0].platform}")
   max_logging.log(f"number of devices: {jax.device_count()}")
   max_logging.log(f"per_device_batch_size: {config.per_device_batch_size}")
+  max_logging.log(f"total prompts to generate: {len(prompts)}")
   max_logging.log("============================================================")
 
   original_enable_profiler = config.get_keys().get("enable_profiler", False)
@@ -368,7 +374,7 @@ def run(config, pipeline=None, filename_prefix="", commit_hash=None):
 
   max_logging.log(f"🚀 Starting warmup compilation pass ({warmup_steps} steps)...")
   with aot_cache.warmup_mode():
-    _ = call_pipeline(config, pipeline, prompt, negative_prompt)
+    _ = call_pipeline(config, pipeline, warmup_prompt, warmup_negative_prompt)
 
   aot_cache.save_pending()
   config.get_keys()["num_inference_steps"] = original_num_steps
@@ -384,54 +390,82 @@ def run(config, pipeline=None, filename_prefix="", commit_hash=None):
 
   s0 = time.perf_counter()
   max_logging.log("🚀 Starting actual full-length generation pass...")
-  out = call_pipeline(config, pipeline, prompt, negative_prompt)
+  saved_video_path = []
+  audio_sample_rate = (
+      getattr(pipeline.vocoder.config, "output_sampling_rate", 24000)
+      if getattr(pipeline, "vocoder", None) is not None
+      else 24000
+  )
+  fps = getattr(config, "fps", 24)
+  audio_format = getattr(config, "audio_format", "s16")
+  model_name = getattr(config, "model_name", "ltx2") or "ltx2"
+  model_name_prefix = model_name.replace(".", "_")
+  gcs_output_path = max_utils.get_gcs_output_path(config)
+
+  last_out = None
+  if not is_multi_prompt:
+    prompt = [prompts[0]] * batch_size
+    negative_prompt = [negative_prompt_str] * batch_size
+    out = call_pipeline(config, pipeline, prompt, negative_prompt)
+    last_out = out
+    videos = out.frames if hasattr(out, "frames") else out[0]
+    audios = out.audio if hasattr(out, "audio") else None
+    for i in range(len(videos)):
+      video_path = f"{filename_prefix}{model_name_prefix}_output_{getattr(config, 'seed', 0)}_{i}.mp4"
+      audio_i = audios[i] if audios is not None else None
+      export_to_video_with_audio(
+          video=videos[i],
+          fps=fps,
+          audio=audio_i,
+          audio_sample_rate=audio_sample_rate,
+          output_path=video_path,
+          audio_format=audio_format,
+      )
+      saved_video_path.append(video_path)
+      if gcs_output_path:
+        max_utils.upload_file_to_gcs(gcs_output_path, video_path, subdir="videos")
+  else:
+    for i in range(0, len(prompts), batch_size):
+      chunk = prompts[i : i + batch_size]
+      actual_chunk_len = len(chunk)
+      if actual_chunk_len < batch_size:
+        padded_chunk = chunk + [chunk[-1]] * (batch_size - actual_chunk_len)
+      else:
+        padded_chunk = chunk
+      negative_prompt = [negative_prompt_str] * batch_size
+
+      out = call_pipeline(config, pipeline, padded_chunk, negative_prompt)
+      last_out = out
+      videos = out.frames if hasattr(out, "frames") else out[0]
+      audios = out.audio if hasattr(out, "audio") else None
+      for j in range(actual_chunk_len):
+        prompt_idx = i + j
+        video_path = f"{filename_prefix}{model_name_prefix}_output_{getattr(config, 'seed', 0)}_{prompt_idx}.mp4"
+        audio_j = audios[j] if audios is not None else None
+        export_to_video_with_audio(
+            video=videos[j],
+            fps=fps,
+            audio=audio_j,
+            audio_sample_rate=audio_sample_rate,
+            output_path=video_path,
+            audio_format=audio_format,
+        )
+        saved_video_path.append(video_path)
+        if gcs_output_path:
+          max_utils.upload_file_to_gcs(gcs_output_path, video_path, subdir="videos")
+
   generation_time = time.perf_counter() - s0
   max_logging.log(f"generation_time: {generation_time}")
   if writer and jax.process_index() == 0:
     writer.add_scalar("inference/generation_time", generation_time, global_step=0)
-    num_devices = jax.device_count()
-    num_videos = num_devices * config.per_device_batch_size
+    num_videos = len(saved_video_path)
     if num_videos > 0:
       generation_time_per_video = generation_time / num_videos
       writer.add_scalar("inference/generation_time_per_video", generation_time_per_video, global_step=0)
       max_logging.log(f"generation time per video: {generation_time_per_video}")
     else:
       max_logging.log("Warning: Number of videos is zero, cannot calculate generation_time_per_video.")
 
-  # out should have .frames and .audio
-  videos = out.frames if hasattr(out, "frames") else out[0]
-  audios = out.audio if hasattr(out, "audio") else None
-
-  saved_video_path = []
-  audio_sample_rate = (
-      getattr(pipeline.vocoder.config, "output_sampling_rate", 24000)
-      if getattr(pipeline, "vocoder", None) is not None
-      else 24000
-  )
-  fps = getattr(config, "fps", 24)
-
-  # Export videos
-  for i in range(len(videos)):
-    model_name = getattr(config, "model_name", "ltx2") or "ltx2"
-    model_name_prefix = model_name.replace(".", "_")
-    video_path = f"{filename_prefix}{model_name_prefix}_output_{getattr(config, 'seed', 0)}_{i}.mp4"
-    audio_i = audios[i] if audios is not None else None
-
-    audio_format = getattr(config, "audio_format", "s16")
-
-    export_to_video_with_audio(
-        video=videos[i],
-        fps=fps,
-        audio=audio_i,
-        audio_sample_rate=audio_sample_rate,
-        output_path=video_path,
-        audio_format=audio_format,
-    )
-
-    saved_video_path.append(video_path)
-    if config.output_dir.startswith("gs://"):
-      max_utils.upload_file_to_gcs(os.path.join(config.output_dir, config.run_name), video_path, subdir="videos")
-
   timing_str = (
       f"\n{'=' * 50}\n"
       f"  TIMING SUMMARY\n"
@@ -481,8 +515,11 @@ def run(config, pipeline=None, filename_prefix="", commit_hash=None):
     config.get_keys()["enable_ml_diagnostics"] = False
     config.get_keys()["num_inference_steps"] = profiling_steps
 
+    profiler_prompt = [prompts[0]] * batch_size
+    profiler_negative_prompt = [negative_prompt_str] * batch_size
+
     max_logging.log(f"🚀 Warmup for profiling pass ({profiling_steps} steps)...")
-    _ = call_pipeline(config, pipeline, prompt, negative_prompt)
+    _ = call_pipeline(config, pipeline, profiler_prompt, profiler_negative_prompt)
 
     config.get_keys()["enable_profiler"] = original_enable_profiler
     config.get_keys()["enable_ml_diagnostics"] = original_enable_mld
@@ -491,7 +528,7 @@ def run(config, pipeline=None, filename_prefix="", commit_hash=None):
     profiler = max_utils.Profiler(config, session_name=f"denoise_profile_{profiling_steps}_steps")
     profiler.start()
 
-    _ = call_pipeline(config, pipeline, prompt, negative_prompt)
+    _ = call_pipeline(config, pipeline, profiler_prompt, profiler_negative_prompt)
 
     profiler.stop()