AI与电影字幕翻译：机器学习字幕的链上版权

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

/**
 * @title 字幕版权登记合约
 */
contract SubtitleCopyright {
    struct Subtitle {
        uint256 id;
        string filmTitle;
        string language;
        string translator;
        string aiModel;
        string ipfsHash;
        uint256 timestamp;
        bool verified;
        address creator;
        uint256 licenseFee;
    }
    
    struct SubtitleLicense {
        uint256 subtitleId;
        address licensee;
        uint256 fee;
        uint256 timestamp;
        bool active;
    }
    
    mapping(uint256 => Subtitle) public subtitles;
    mapping(uint256 => SubtitleLicense[]) public licenses;
    
    uint256 public nextSubtitleId;
    
    event SubtitleRegistered(uint256 indexed id, string filmTitle, string language);
    event LicenseIssued(uint256 indexed subtitleId, address licensee);
    
    function registerSubtitle(
        string memory filmTitle,
        string memory language,
        string memory translator,
        string memory aiModel,
        string memory ipfsHash,
        uint256 licenseFee
    ) external returns (uint256) {
        uint256 id = nextSubtitleId++;
        subtitles[id] = Subtitle({
            id: id,
            filmTitle: filmTitle,
            language: language,
            translator: translator,
            aiModel: aiModel,
            ipfsHash: ipfsHash,
            timestamp: block.timestamp,
            verified: false,
            creator: msg.sender,
            licenseFee: licenseFee
        });
        emit SubtitleRegistered(id, filmTitle, language);
        return id;
    }
    
    function acquireLicense(uint256 subtitleId) external payable {
        require(msg.value >= subtitles[subtitleId].licenseFee, "Insufficient fee");
        licenses[subtitleId].push(SubtitleLicense({
            subtitleId: subtitleId,
            licensee: msg.sender,
            fee: msg.value,
            timestamp: block.timestamp,
            active: true
        }));
        payable(subtitles[subtitleId].creator).transfer(msg.value);
        emit LicenseIssued(subtitleId, msg.sender);
    }
}

from typing import Dict, List
import json
import hashlib

class AISubtitleTranslator:
    """AI字幕翻译系统"""
    
    def __init__(self):
        self.supported_languages = ['en', 'zh', 'ja', 'ko', 'fr', 'de', 'es']
        
    def translate_subtitle(self, text: str, source_lang: str, target_lang: str) -> str:
        """翻译字幕文本"""
        # 简化的翻译逻辑
        return f"[{target_lang.upper()}]: {text}"
    
    def generate_timestamps(self, text: str, duration: float) -> List[Dict]:
        """生成时间码"""
        words = text.split()
        word_duration = duration / max(len(words), 1)
        timestamps = []
        current_time = 0
        for i, word in enumerate(words):
            timestamps.append({
                'word': word,
                'start': current_time,
                'end': current_time + word_duration
            })
            current_time += word_duration
        return timestamps
    
    def batch_translate(self, subtitles: List[Dict], target_lang: str) -> List[Dict]:
        """批量翻译字幕"""
        translated = []
        for sub in subtitles:
            translated.append({
                'original': sub['text'],
                'translated': self.translate_subtitle(sub['text'], sub['language'], target_lang),
                'start_time': sub['start_time'],
                'end_time': sub['end_time']
            })
        return translated

translator = AISubtitleTranslator()
result = translator.batch_translate([
    {'text': 'Hello world', 'language': 'en', 'start_time': 0, 'end_time': 2}
], 'zh')
print(json.dumps(result, indent=2, ensure_ascii=False))

class SubtitleEditor {
  constructor(contractAddress, providerUrl) {
    this.contract = new ethers.Contract(contractAddress, SubtitleCopyrightABI, 
      new ethers.providers.JsonRpcProvider(providerUrl));
  }

  async registerSubtitle(filmTitle, language, translator, aiModel, content, signer) {
    const ipfsHash = ethers.utils.keccak256(ethers.utils.toUtf8Bytes(content));
    const contract = this.contract.connect(signer);
    const tx = await contract.registerSubtitle(filmTitle, language, translator, aiModel, ipfsHash, 0);
    await tx.wait();
    return tx;
  }
}

const editor = new SubtitleEditor('0xContractAddress', 'https://eth-mainnet.g.alchemy.com/v2/YOUR_KEY');