ComfyUI Node: Check Total Frame

Check Total Frame:

The VACEPromptCheckTotalFrame node is a component of the SuperUltimateVaceTools suite designed to calculate the total number of frames required for a video generation task based on a list of prompts. This node is particularly useful in scenarios where you need to manage and optimize the frame allocation for different segments of a video, ensuring that each segment is allocated the correct number of frames according to its specific requirements. By accurately computing the total frames, this node helps in maintaining the flow and timing of video sequences, which is crucial for creating smooth transitions and coherent video outputs. The node's primary function is to sum up the frames specified in each prompt, adjusting for any initial crossfade frames that might be set to ensure seamless transitions between different video segments.

Check Total Frame Input Parameters:

prompt_list

The prompt_list parameter is a collection of prompts that dictate the structure and content of the video frames. Each item in the list contains details such as the number of frames (num_frame) and the initial crossfade frames (init_crossfade_frame) for that segment. This parameter is crucial as it directly influences the total frame count by specifying how many frames each segment should occupy and how they should transition into one another. The prompt_list does not have explicit minimum or maximum values, but it should be structured correctly to ensure accurate frame calculation.

Check Total Frame Output Parameters:

total_frame

The total_frame output parameter represents the total number of frames calculated from the provided prompt_list. This integer value is essential for understanding the overall length of the video and ensuring that all segments are appropriately accounted for in the final output. The total_frame value is derived by summing up the frames from each prompt, adjusted for any initial crossfade frames, providing a comprehensive view of the video's frame requirements.

Check Total Frame Usage Tips:

• Ensure that each item in the prompt_list is correctly formatted and includes both num_frame and init_crossfade_frame values to avoid miscalculations in the total frame count.
• Use this node to verify the total frame count before proceeding with video generation to ensure that your video segments are correctly aligned and transitions are smooth.

Check Total Frame Common Errors and Solutions:

"init_crossfade_frame can not be larger than num_frame"

• Explanation: This error occurs when the initial crossfade frame count exceeds the total number of frames allocated for a segment, which is not permissible.
• Solution: Adjust the init_crossfade_frame value to be less than or equal to the num_frame for each segment in the prompt_list.

"Length of control image exceeds length of generation"

• Explanation: This error indicates that the control frames specified exceed the total number of frames available for generation.
• Solution: Review the prompt_list and ensure that the total frames specified do not exceed the intended video length. Adjust the control frame settings accordingly.