267 lines
8.3 KiB
Python
267 lines
8.3 KiB
Python
from openai import OpenAI
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import os
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import base64
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import time
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from datetime import datetime
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# Base64 编码格式
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def encode_video(video_path):
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with open(video_path, "rb") as video_file:
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return base64.b64encode(video_file.read()).decode("utf-8")
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def encode_audio(audio_path):
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with open(audio_path, "rb") as audio_file:
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return base64.b64encode(audio_file.read()).decode("utf-8")
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def read_txt_file(txt_path):
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"""读取txt文件内容"""
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try:
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with open(txt_path, 'r', encoding='utf-8') as file:
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content = file.read()
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print(f"成功读取txt文件: {txt_path}")
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print(f"文件内容长度: {len(content)} 字符")
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return content
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except FileNotFoundError:
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print(f"错误: 找不到文件 {txt_path}")
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return ""
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except Exception as e:
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print(f"读取文件时出错: {e}")
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return ""
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STREAM_MODE = True
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# 文件路径配置
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video_path = "/root/autodl-tmp/hot_video_analyse/video2audio/sample_demo_6.mp4"
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audio_path = "/root/autodl-tmp/hot_video_analyse/video2audio/sample_demo_6.wav"
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#txt_path = "/root/autodl-tmp/hot_video_analyse/source/example_reference.txt" # 使用示例参考文档
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# 编码文件
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print("开始编码文件...")
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encode_start_time = time.time()
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base64_video = encode_video(video_path)
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base64_audio = encode_audio(audio_path)
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#txt_content = read_txt_file(txt_path)
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txt_content = ""
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encode_end_time = time.time()
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encode_duration = encode_end_time - encode_start_time
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print(f"文件编码完成,耗时: {encode_duration:.2f} 秒")
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client = OpenAI(
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# 若没有配置环境变量,请用百炼API Key将下行替换为:api_key="sk-xxx"
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api_key="EMPTY",
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base_url="http://localhost:8000/v1",
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)
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# 构建content列表
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content_list = [
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{
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# 直接传入视频文件时,请将type的值设置为video_url
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"type": "video_url",
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"video_url": {"url": f"data:video/mp4;base64,{base64_video}"},
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}
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,
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{
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"type": "audio_url",
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"audio_url": {"url": f"data:audio/wav;base64,{base64_audio}"},
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}
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]
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# 如果txt文件有内容,添加到content中
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if txt_content.strip():
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content_list.append({
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"type": "text",
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"text": f"参考文档内容:\n{txt_content}\n\n"
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})
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# 添加主要提示文本
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content_list.append({
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"type": "text",
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"text": """🎥 **抖音短视频内容分析专家**
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请对这个抖音短视频进行详细的内容分析,重点关注以下三个方面:
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## 🎤 一、口播内容提取
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请仔细听取视频中的语音内容,完整转录:
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- **完整口播转录**:逐字逐句转录所有口语表达
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- **语音时长**:估算总的讲话时长
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## 📝 二、字幕文字识别
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请识别视频画面中出现的所有文字内容:
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- **屏幕字幕**:视频中显示的字幕文字(包括自动字幕和手动添加的字幕)
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- **标题文字**:视频开头、中间、结尾出现的大标题
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- **字幕位置**: 以右上角的像素为0 0 为基准,计算字幕的像素位置 e.g. 0 600 1080 720
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## 🎣 三、勾子分析
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根据以下五种勾子类型,分析视频使用的勾子策略:
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### 1. 好奇类勾子
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- 公式1:**是一种什么体验
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- 公式2:如何不**也能**
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- 公式3:如果你**,你会怎么样
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- 示例:有一个长得像要债的老公,是一种什么体验
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### 2. 借势类勾子
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- 公式1:曾经被某人**,如今却**
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- 公式2:某**大火,我却关心**
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- 公式3:某明星都在用的**
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- 示例:马云都在看的3本书,建议收藏
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### 3. 痛点式勾子
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- 公式1:为什么**,却**
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- 公式2:不知道**?一定要**
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- 公式3:最新**,你不会不知道吧
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- 示例:怕上火,喝王老吉
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### 4. 极限式勾子
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- 公式1:这是全网最**
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- 公式2:**一定要**
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- 公式3:99%的人都不知道的**
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- 示例:成都最值得去的十大景点
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### 5. 恐吓式勾子
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- 公式1:**揭密,千万不要**
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- 公式2:如果你再不**,就会**
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- 公式3:**将迎来**,赶紧**
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## 📊 输出格式要求
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请严格按照以下格式输出分析结果:
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{
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"口播分析": {
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"是否有口播": "是",
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"口播内容": "完整的口播内容转录(逐字逐句)",
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"讲话时长": "大概的讲话时长(秒)"
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},
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"字幕分析": {
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"是否有字幕": "是",
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"字幕内容": "所有字幕文字内容",
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"字幕位置": "字幕位置(以右上角的像素为0 0 为基准,计算字幕的像素位置 e.g. 0 600 1080 720)",
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},
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"勾子分析": {
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"勾子类型": "勾子类型(好奇类/借势类/痛点式/极限式/恐吓式/混合型/无明显勾子)",
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"勾子公式": "匹配的勾子公式",
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"勾子内容": "具体的勾子内容",
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}
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}
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}
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请开始详细分析这个抖音短视频:"""
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})
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print(f"\n开始请求API...")
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print(f"请求时间: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}")
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print(f"Stream模式: {STREAM_MODE}")
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print(f"Content项目数量: {len(content_list)}")
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# 记录API请求开始时间
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api_start_time = time.time()
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completion = client.chat.completions.create(
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model="/root/autodl-tmp/llm",
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messages=[
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{
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"role": "system",
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"content": [{"type":"text","text": "You are a helpful assistant."}]
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},
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{
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"role": "user",
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"content": content_list
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}
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],
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stream=STREAM_MODE,
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stream_options={"include_usage": True} if STREAM_MODE else None,
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)
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if STREAM_MODE:
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# 流式输出 - 拼接完整回复
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full_response = ""
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usage_info = None
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# 记录第一个token的时间
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first_token_time = None
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token_count = 0
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print("正在生成回复...")
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for chunk in completion:
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if chunk.choices:
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delta = chunk.choices[0].delta
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if delta.content:
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# 记录第一个token的时间
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if first_token_time is None:
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first_token_time = time.time()
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first_token_delay = first_token_time - api_start_time
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print(f"首个token延迟: {first_token_delay:.2f} 秒")
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# 拼接内容
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full_response += delta.content
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token_count += 1
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# 实时显示(可选)
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#print(delta.content, end='', flush=True)
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else:
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# 保存使用情况信息
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usage_info = chunk.usage
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# 记录API请求结束时间
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api_end_time = time.time()
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total_duration = api_end_time - api_start_time
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# 输出完整的响应
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print("\n" + "="*50)
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print("完整回复:")
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print("="*50)
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print(full_response)
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# 输出时间统计信息
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print("\n" + "="*50)
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print("⏱️ 时间统计:")
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print("="*50)
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print(f"📁 文件编码时间: {encode_duration:.2f} 秒")
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if first_token_time:
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print(f"🚀 首个token延迟: {first_token_delay:.2f} 秒")
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generation_time = api_end_time - first_token_time
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print(f"⚡ 内容生成时间: {generation_time:.2f} 秒")
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print(f"🕐 API总响应时间: {total_duration:.2f} 秒")
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print(f"📊 生成token数量: {token_count}")
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if first_token_time and token_count > 0:
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tokens_per_second = token_count / generation_time
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print(f"🔥 生成速度: {tokens_per_second:.2f} tokens/秒")
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print(f"⏰ 完成时间: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}")
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# 输出使用情况信息
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if usage_info:
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print("\n" + "="*50)
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print("📈 使用情况:")
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print("="*50)
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print(usage_info)
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else:
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# 非流式输出 - 直接输出完整响应
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api_end_time = time.time()
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total_duration = api_end_time - api_start_time
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print("非流式输出模式:")
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print("完整回复:")
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print("="*50)
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print(completion.choices[0].message.content)
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# 输出时间统计信息
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print("\n" + "="*50)
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print("⏱️ 时间统计:")
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print("="*50)
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print(f"📁 文件编码时间: {encode_duration:.2f} 秒")
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print(f"🕐 API总响应时间: {total_duration:.2f} 秒")
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print(f"⏰ 完成时间: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}")
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# 输出使用情况信息
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if hasattr(completion, 'usage') and completion.usage:
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print("\n" + "="*50)
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print("📈 使用情况:")
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print("="*50)
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print(completion.usage) |