# Crossfade Time Subtractor MCP for AI Agents AI Agent Connect > Crossfade Time Subtractor calculates precise video durations and required raw footage lengths for overlapping transitions. It solves the common problem where crossfades make timeline math difficult by accounting for segments that occupy the same space. Use it to find exact sequence lengths or determine how much raw material you need to hit a specific target time. It's a must-have for editors who need to hit exact marks for clients without doing manual math every time they move a clip. ## Overview - **Category:** productivity - **Price:** Free - **Endpoint:** https://edge.vinkius.com/vk_preview_w40ZuwaKaseXXwWBlslNo3Oqjxr0czivfn60KPZY/ai-agent-connect - **Tags:** video, crossfade, timeline, duration, editing-tools ## Description When you're building a complex video sequence, crossfades change the math of your timeline. If you have two clips that overlap by a second, the final video isn't just the sum of those two parts. It's a headache to calculate manually when you're trying to hit a precise 30-second mark for a client. This Connector handles that math for you. You can tell your agent how long your clips are and how much overlap you want, and it'll give you the exact numbers you need. It's a huge time saver when you're trying to figure out how much raw footage you actually need to order from a production house. You'll find this is a core part of the Vinkius catalog for anyone who treats video production like a science. It takes the guesswork out of the timeline so you can focus on the actual edit. ## Tools ### get_overlap_impact_report See a breakdown of how much time your transitions are eating up across your sequence. It helps you understand the cumulative effect of multiple junctions. ### get_required_raw_sum Find out the total length of raw footage you need to hit a specific final video duration. This helps with accurate production planning and ordering. ### get_true_duration Get the exact visible length of a video sequence after all crossfades are applied. Use this to verify your final timeline length. ## Prompt Examples **Prompt:** ``` I have three clips that are 5000ms, 7000ms, and 4500ms long. If I use a 500ms crossfade between them, what is the final video duration? ``` **Response:** ``` The final visible duration of your video will be 15500ms. ``` **Prompt:** ``` I need a final video to be exactly 30 seconds (30000ms) using 5 clips with a 1000ms crossfade. How much total raw footage do I need? ``` **Response:** ``` To achieve a 30000ms final duration with 5 clips and 1000ms crossfades, you need a total raw sum of 34000ms. ``` **Prompt:** ``` Analyze the impact of transitions for clips with durations: [2000, 3000, 2500] and a crossfade of 400ms. ``` **Response:** ``` The total time lost to transitions is 800ms across 2 junctions. ``` ## Capabilities ### Calculate final sequence length Get the exact visible duration of a video sequence after all crossfades are applied. ### Determine footage requirements Find out the total length of raw footage needed to reach a specific final duration. ### Analyze transition time loss See a breakdown of how much time your transitions are eating up across your sequence. ## Use Cases ### Planning a 30-second social ad An editor has 5 clips and needs to know the exact duration of the final ad if they use 1-second crossfades between each. They ask their agent to run the math. ### Ordering footage for a montage A production manager needs to know how many seconds of raw footage to buy for a 2-minute sequence that uses heavy overlapping transitions. ### Verifying final export length A creator wants to know if their sequence is exactly 60 seconds before they hit render. They ask the agent to calculate the true duration. ### Analyzing transition density An editor wants to know how much time is lost to transitions in a fast-paced sequence. They use the impact report to see the total junction time. ## Benefits - Stop guessing your final video length by using get_true_duration to see the actual visible time. - Order the right amount of footage with get_required_raw_sum so you don't overspend on raw material. - See exactly how much time is being lost to transitions with the get_overlap_impact_report tool. - Plan complex sequences faster because your agent handles the math for every overlapping junction. - Hit exact client requirements for 30-second or 60-second spots without manual calculation errors. - Reduce the risk of timeline errors by automating the subtraction of overlapping segments. ## How It Works The bottom line is you get precise timeline math without having to use a calculator. 1. Input the lengths of your individual clips and the duration of your crossfades. 2. Tell your agent which calculation you need, like a final duration or a raw footage sum. 3. Get the exact numbers back to plug into your production plan or timeline. ## Frequently Asked Questions **How does Crossfade Time Subtractor help with video editing?** It calculates the precise length of a video sequence when clips overlap. It takes the math of your crossfades into account so you know exactly how long your final edit will be. **Can I use Crossfade Time Subtractor to figure out footage needs?** Yes. You can tell your agent your target final duration and how many crossfades you plan to use. It will calculate the total amount of raw footage you need to have on hand. **What is the difference between total clip length and true duration?** Total clip length is just the sum of the files. True duration is the actual time the viewer sees, which is shorter because crossfades cause the clips to occupy the same space on the timeline. **Does Crossfade Time Subtractor work for any video software?** It works with any AI client that supports MCP. It doesn't replace your editing software; it provides the calculations you need to use within any NLE like Premiere, Resolve, or Final Cut. **How can I use Crossfade Time Subtractor to plan a 60-second commercial?** You can input your planned clip lengths and transition times to see if the sequence hits the 60-second mark. It helps you adjust your edit before you start the heavy lifting of syncing. **Does Crossfade Time Subtractor calculate the math for multiple junctions?** Yes, it can analyze a whole sequence. It tracks every junction to give you a total impact report of how much time is lost to transitions across the entire timeline. **How does Crossfade Time Subtractor help with production budgets?** By calculating the exact raw footage sum needed for a specific duration, it helps you avoid over-ordering expensive raw material from production houses. **How does the duration calculation work?** The tool calculates the total sum of all clip durations and then subtracts the cumulative time lost at each junction. The number of junctions is always one less than the number of clips. **Can I use this to plan my footage requirements?** Yes, by using `get_required_raw_sum`, you can determine exactly how much raw clip length is needed to hit a specific target duration after all crossfades are applied. **What happens if the crossfade duration is too large?** If the `crossfadeDuration` exceeds the length of any clip in your sequence, the tool will return an error to prevent invalid calculations.