fix: it works, but needed to switch local LLM for hosted one.
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@@ -4,6 +4,8 @@
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</PropertyGroup>
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<ItemGroup>
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<PackageVersion Include="FFMpegCore" Version="5.2.0" />
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<PackageVersion Include="Microsoft.Extensions.Configuration" Version="9.0.7" />
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<PackageVersion Include="Microsoft.Extensions.Configuration.Json" Version="9.0.7" />
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<PackageVersion Include="NAudio" Version="2.2.1" />
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<PackageVersion Include="Whisper.net.AllRuntimes" Version="1.8.1" />
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</ItemGroup>
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@@ -9,11 +9,16 @@ using FFMpegCore;
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using FFMpegCore.Enums;
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using FFMpegCore.Pipes;
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using Microsoft.Extensions.Configuration;
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using NAudio.Wave;
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using Whisper.net;
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using Whisper.net.Ggml;
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var config = new ConfigurationBuilder()
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.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
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.Build();
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var stopwatch = new Stopwatch();
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stopwatch.Start();
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@@ -105,35 +110,73 @@ foreach (var (i, segment) in segments.Select((s, index) => (index, s)))
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// Step 5: Send the transcription to LLM for analysis
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// TODO: Explore this prompt further...seems break
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// when transcription is long
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var prompt = $"""
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You are an expert in identifying engaging segments from YouTube live stream transcriptions that are suitable for creating short videos. You will be provided with a transcription of a YouTube live stream. Your task is to analyze the transcription and identify potential segments that would make compelling short videos.
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var prompt = $$"""
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I need your help to transform my YouTube live stream transcript into engaging YouTube Shorts. Act as my content editor and pinpoint **all potential candidate segments** that are perfect for short-form video. I'm looking for clips that are:
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For each segment you identify, you should create an object with the following attributes:
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* **Funny:** Moments that will make viewers laugh.
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* **Informative:** Sections packed with valuable information or tips.
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* **Insightful:** Portions offering unique perspectives or 'aha\!' moments.
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title: A concise and catchy title for the short video.
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description: A brief description of the short video's content.
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explanation: Explain why this segment would make a good short video (e.g., it's funny, informative, controversial, etc.).
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start_time: The timestamp in the format HH:MM:SS where the segment begins in the original live stream.
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end_time: The timestamp in the format HH:MM:SS where the segment ends in the original live stream.
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Your response must be a JSON array of these objects. The JSON array should be the only output. Do not include any introductory or explanatory text outside of the JSON array.
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For each suggested short, please provide:
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Here is the transcription of the YouTube live stream:
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* The **start time** of the initial segment and the **end time** of the final segment. The duration of each short should be no longer than 3 minutes, but **aim for durations between 15 seconds and 60 seconds**. However, the short **must be as long as necessary to capture the complete thought or idea**, even if it means exceeding the target range or extending slightly to capture all necessary dialogue.
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* A concise **title** that grabs attention.
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* A brief **description** highlighting the short's content and its appeal.
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* An **explanation** of why this particular segment is suitable for a YouTube Short, focusing on its potential for discoverability and engagement.
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{completeTranscription}
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Please format your response as a JSON array of objects with the following structure:
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```json
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{
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""title"": ""string"",
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"start_time": "string",
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"end_time": "string",
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"description": "string",
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"explanation": "string"
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}
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```
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Here is the transcript of my YouTube live stream:
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{{completeTranscription}}
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""";
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var apiKey = config["GeminiApiKey"];
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if (string.IsNullOrWhiteSpace(apiKey))
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{
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throw new InvalidOperationException("GeminiApiKey is not configured in appsettings.json.");
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}
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using var client = new HttpClient()
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{
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Timeout = TimeSpan.FromMinutes(30)
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};
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using var request = new HttpRequestMessage(HttpMethod.Post, "http://localhost:11434/api/generate")
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var requestUrl = $"https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash-lite:generateContent?key={apiKey}";
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using var request = new HttpRequestMessage(HttpMethod.Post, requestUrl)
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{
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Content = new StringContent(
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JsonSerializer.Serialize(new
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{
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model = "llama3.1:latest",
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prompt,
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stream = false
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contents = new[]
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{
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new
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{
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role = "user",
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parts = new[]
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{
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new
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{
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text = prompt
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}
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},
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}
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},
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generationConfig = new
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{
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responseMimeType = "application/json",
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}
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}),
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Encoding.UTF8,
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"application/json"
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@@ -142,7 +185,13 @@ using var request = new HttpRequestMessage(HttpMethod.Post, "http://localhost:11
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var response = await client.SendAsync(request);
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var responseContent = await response.Content.ReadAsStringAsync();
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var responseJson = JsonSerializer.Deserialize<LLMResponse>(responseContent);
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var analysis = JsonSerializer.Deserialize<List<LLMAnalysis>>(responseJson?.Response ?? string.Empty);
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var candidatesText = responseJson?
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.Candidates?
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.FirstOrDefault()?
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.Content
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.Parts?.FirstOrDefault()?
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.Text;
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var analysis = JsonSerializer.Deserialize<List<LLMAnalysis>>(candidatesText ?? string.Empty);
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if (analysis is null)
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{
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@@ -181,6 +230,21 @@ record LLMAnalysis(
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);
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record LLMResponse(
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[property: JsonPropertyName("response")]
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string Response
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[property: JsonPropertyName("candidates")]
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Candidate[] Candidates
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);
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record Candidate(
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[property: JsonPropertyName("content")]
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Content Content
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);
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record Content(
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[property: JsonPropertyName("parts")]
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Part[] Parts
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);
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record Part(
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[property: JsonPropertyName("text")]
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string Text
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);
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@@ -6,8 +6,15 @@
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<ItemGroup>
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<PackageReference Include="FFMpegCore" />
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<PackageReference Include="Microsoft.Extensions.Configuration" />
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<PackageReference Include="Microsoft.Extensions.Configuration.Json" />
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<PackageReference Include="NAudio" />
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<PackageReference Include="Whisper.net.AllRuntimes" />
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</ItemGroup>
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<ItemGroup>
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<None Update="appsettings.json">
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<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
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</None>
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</ItemGroup>
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</Project>
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