GrokさんとVibeコーディングしてYouTubeから字幕をwebvtt出力させてみた件
YouTube動画をGrokに要約させたり、こんな話してる箇所とかありますか？とか聞くのがとても便利でトランスクリプトを取得することが増えたのですが、これを簡単にしたいということでGrokにPythonスクリプトを作らせてみました。
でもテキスト起こしが欲しいだけならば、皆さんは普通にウェブサービスを使ったほうがいいかと思いますｗ
どれがいいとかまでは知りません。
私はGrokに渡すTokenを最小にしたいなと思ったのでvttで出力させてから、これに前処理したり必要最小限にしてからGrokに内容を要約させたりという使い方を考えています。spaCyでぶちぎりの文章を復元してGrokの用語の認識精度を上げたりも重要ですね。
ちょっと前まではrumbleのビデオには字幕がなかったのでwhisperxで自前で字幕作ってさらには話して推定までして、エラー訂正して、そっから日本語訳つくったりしていましたが、Grokに要約させるならvtt作れたらまあ十分ですね。Youtubeなら字幕が勝手にできている場合が多いのでwhisperいりません。
いやー、結構面倒くさいプログラミングについてはGrokさんに外注させてWTM日本語訳チャネルのBotの開発も楽をするようになりましたが、Grok3の書くコードはなかなか素晴らしいのでちょっとした手直しでちゃんと動作させられます。こういうのを最近はVibeコーディングと言うようです。
バイブコーディングはAIに依存したプログラミング手法で、人は解きたい問題を、コーディングに特化した大規模言語モデル（LLM）へのプロンプトとして自然言語で記述する。LLMによるソフトウェアの生成が可能となったことで、プログラマの役割は手作業によるコーディングから、AIがソースコードを生成する際のガイドと生成したコードのテスト・改良へと変化してきている[1][2][3]。そのためバイブコーディングの支持者は、これまでソフトウェア工学で必要とされてきた広範なトレーニング経験やスキルを持ち合わせていない素人のプログラマであってもソフトウェアを作成できると主張している[4]。この用語は2025年2月にアンドレイ・カーパシーによって提唱され[5][6][7][8]、翌月にはウェブスター辞典の「スラングとトレンド」に名詞として掲載された[9]。
とくにseleniumとかBeautifulSoupとかを使ったややこしいコードは手作業で書くのは苦痛ですので、かるーい気持ちで始めたこの企画もバグ取りにちょいと苦労しましたが完成させることができました。
対象がYouTubeというややこしいUIや広告をを掻い潜る必要があったために手こずった部分があるのですが、もうちょっと単純なページならもっとあっさりできたと思います。
使い方
プログラムは一番下に置いておきますが、使い方はこんなです。
python get_vtt_from_youtube.py https://youtu.be/aa6-rEO4ghY
基本的にはUbuntu系列のディストロなら動くと思いますがChromeかChromium、そしてChromeDriverが必要です。
# Chromeをインストール
sudo apt update
sudo apt install -y wget unzip
wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
sudo dpkg -i google-chrome-stable_current_amd64.deb
sudo apt-get install -f
# ChromeDriverをインストール
CHROME_VERSION=$(google-chrome --version | grep -oP '\d+\.\d+\.\d+')
wget https://chromedriver.storage.googleapis.com/LATEST_RELEASE_$CHROME_VERSION -O /tmp/chromedriver_version
wget https://chromedriver.storage.googleapis.com/$(cat /tmp/chromedriver_version)/chromedriver_linux64.zip
unzip chromedriver_linux64.zip
sudo mv chromedriver /usr/local/bin/
sudo chmod +x /usr/local/bin/chromedriverあとは適当にvenvを作ってライブラリをインスコしておいてください。
pip install selenium beautifulsoup4 requests webvtt-py
GrokさんとのVibeコーディング
基本的には要望を伝えて、
いまくいってない部分のエラーを貼ってあげたり、状況を説明してあげると書き直してくれるので、その繰り返し。たまに自分でデバックして助けて上げたりもしました。
出力の例
このビデオのトランスクリプトを作ってみました。
追記） vttじゃなくwebvttにフォーマット変更しました。
WEBVTT
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so is it the art of the deal to just
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make a bunch of demands and then to back
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down from them and flip-flop every other
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day like a flippity floppity fish or is
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this yet another masterful 10D chess
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move in which President Trump has
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excluded tariffs essentially eliminating
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most of them from Chinese electronics
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phones laptops computer chips i mean
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what's even the point of tariffs then to
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bring manufacturing of clothing socks
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sweaters and shoes back to the US and so
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in a massive turn of events and arguably
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some might even say a massive defeat and
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a stunning loss of leverage for United
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States in negotiations in the coming
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weeks and months ahead the US has
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decided to just exclude basically
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everything from the reciprocal tariffs
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from China i mean we're talking about
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laptops smartphones chips computer parts
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flash memory drives SSDs media recording
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sound equipment and on this news the
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crypto markets have rallied with Bitcoin
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nearing 85,000 and this could be a buy
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signal this could actually be a bottom
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as we're seeing a pivot in the direction
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of the US government and we're going to
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see more deescalation ethereum is
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running up 4.9% the past 24 hours and
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this is something we need to be a bit
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careful about here because it seems to
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be running a little bit ahead of itself
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here and actually this could represent
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retail hype anytime Ethereum starts
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running ahead of Bitcoin I have to ask
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myself what are we fleeing to is it a
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flight to safety and hard assets like
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Bitcoin or is industry manufacturing is
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commercialization and growth back are we
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out of the recession in that case maybe
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Ethereum could run faster but if we
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check ourselves here this is where we
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need to be careful about just jumping
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back into these markets the White House
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deputy of staff clarifies that the
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original 20% tariffs are still on for
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China so this is where I'm thinking that
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a lot of the retail crypto traders may
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be jumping ahead of the train here
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you've got a lot of crypto djen traders
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on 100x leverage these ETH maxis trying
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to make their bags back because they've
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lost so much they're desperate out here
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and you know the smart money is going to
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know the tariff thing isn't entirely
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over you've still got 20% and this whole
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issue still needs to be resolved not to
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mention on Friday Apple had already run
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up 4% so some of this is definitely
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priced in already the market was
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expecting a deescalation nvidia was up
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3% on Friday so in my view we can't
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necessarily just expect out season to
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come back and to jump back into tech
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stocks and expect growth to come back to
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the US because there's still a lot of
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recessionary risks in play here you know
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the AI bubble has been popping deep sea
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came before the tariffs and as far as
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tariffs go we just lost a lot of
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negotiation ground and basically all of
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our leverage here right we're going to
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have negotiations with 75 plus countries
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as I recall and all of these countries
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are probably going to be asking for the
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same exclusions and exemptions that
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they're saying we're making for these
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big tech companies right they see that
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we're willing to back down we can back
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down i mean we're just flip-flopping
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back and forth and the weird thing is
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these tariff exemptions now
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disproportionately benefit big tech like
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Apple Nvidia Google you know we saw the
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big tech CEOs having their million-doll
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lunches with President Trump earlier did
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that play a part in this the optics
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aren't looking so good while all the
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meanwhile lower income Americans may be
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suffering more because they need to buy
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the low tax stuff and the small
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businesses may be hurt now well why
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don't they get exclusions too they're
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going to be asking for that and then car
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parts are also notably not exempt well
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what about Tesla and Elon Musk we've got
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to help them out too here so let's add
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an exemption for Tesla here too right we
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should do that and Tesla has been facing
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issues they had to halt orders in China
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for the US imported models because of
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the reciprocal tariffs that Beijing
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imposed on America tesla had to quietly
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remove the order button from the Model S
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and Model X vehicles and some are
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saying history will remember that China
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stood up against American imperialism
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and
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coercions in this grand show where the
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US waged war on the whole entire world
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and China said I got this i got this and
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they got it and the world has China to
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thank for saving their economies
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arguably the Chinese embassy stated give
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the bully an inch and he will take a
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mile well China did not back down and
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they gave not a single inch matching the
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US tariffs one for one up until 125% and
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with that China stating this is the end
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of escalations even if the US imposes
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higher tariffs it will no longer make
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economic sense and ultimately go down as
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a joke in world economic history is it a
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joke or is it the art of the deal i mean
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this could yet be a 4D 5D 100D chess
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move but the US could be in serious
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trouble here actually i mean we may have
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screwed ourselves here we're bankrupt
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guys we are going bankrupt fast here our
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debt is going parabolic to the moon at
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nearly 37 trillion at 37 trillion in
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debt with an interest rate of around 4%
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that we're paying we need about $1.5
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trillion in gross revenues just to pay
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off this debt and these tariffs was
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really the last chance we had at this
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the plan was to get Doge to save one
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trillion and then the tariffs would make
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the other trillion so we get two
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trillion in profit each year then we
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could get the debt under control now we
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don't have a plan anymore for our debt
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you see Doge quietly lowered their
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estimates of savings from 1 trillion to
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just 150 billion and this is not going
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to be enough and at the same time our
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spending exceeded our savings at 154
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billion and so effectively we have saved
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nothing year to date and to make matters
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worse we've got a surprise announcement
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another $1 trillion in military defense
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spending well where are we getting the
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money for all this tariffs Doge or are
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we printing so we need to have an
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accurate gauge of the economy here are
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we euphoric at the time when Google just
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announced they're laying off hundreds of
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employees in the Android Pixel and
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Chrome teams and Microsoft is also
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considering additional layoffs in May on
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managers and non-coders this time and so
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the economy is not doing that great and
00:06:22.000 --> 00:06:24.000
the main story continues to be the
00:06:24.000 --> 00:06:26.000
dollar index how strong is the dollar
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here it cratered actually to 99.8 under
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100 the first time it's reached this
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level since maybe 3 years ago analysts
00:06:34.000 --> 00:06:36.000
that the question of a potential dollar
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confidence crisis has now been
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definitely answered we're experiencing
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one in full force the dollar collapse is
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working as a barometer of sell America
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and so maybe we don't have the cards
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here actually with our full transparency
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which is notable we've ended up showing
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everybody our cards and they know our
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intentions they know how to prepare for
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this now and they know that we don't
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have much leverage we just gave up a
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bunch of our leverage for free basically
00:06:59.000 --> 00:07:01.000
and this is pushing our allies and trade
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partners away into China's waiting arms
00:07:04.000 --> 00:07:06.000
so China is now stepping up efforts to
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diversify away from US markets promoting
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itself as a responsible trading partner
00:07:11.000 --> 00:07:13.000
china's President Xiinping recently went
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over to Spain to build more strategic
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resilient partnerships looks like they
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had a great time over there you've got
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President Xi heading to Vietnam Malaysia
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Cambodia they're talking with Saudi
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Arabia South Africa and now they're
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seeking British backing to defend
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international trade you've got France
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working alongside the European
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Commission in full unity with a clear
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goal to negotiate the removal of unfair
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tariffs and we have EU leaders planning
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a Beijing trip in July for summit with
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China's President Xi so the fundamental
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problem here is we showed everybody our
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cards and showed them we were willing to
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abuse our power as the global reserve
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currency the trade partner for all these
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countries and now they're preparing to
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exclude and bypass the United States and
00:07:56.000 --> 00:07:58.000
they're not going to be caught off guard
00:07:57.000 --> 00:07:59.000
again because they're not going to be
00:07:59.000 --> 00:08:01.000
fooled twice and every country now is
00:08:01.000 --> 00:08:03.000
rethinking any US technology products or
00:08:04.000 --> 00:08:06.000
services that they may be dependent on
00:08:06.000 --> 00:08:08.000
and you have the EU now also taking a
00:08:09.000 --> 00:08:11.000
look at possibly levying fines on
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American tech companies they are
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developing retaliatory measures an
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example being levying the advertising
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revenues of digital services so this is
00:08:20.000 --> 00:08:22.000
like essentially putting tariffs on
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Google Apple or X's ad revenues the head
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of the EU stated "It is a complete
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inflection point in global trade we will
00:08:30.000 --> 00:08:32.000
never go back to the status quo." And so
00:08:32.000 --> 00:08:34.000
you can imagine if we somehow extract
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and everybody's max extracting here
00:08:36.000 --> 00:08:38.000
let's say we extract $100 million from
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the EU they're going to extract $100
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million in retaliation from say Google
00:08:43.000 --> 00:08:45.000
Facebook and X or Apple or any of our
00:08:45.000 --> 00:08:47.000
digital services and technologies
00:08:47.000 --> 00:08:49.000
they're going to recuperate their cost
00:08:49.000 --> 00:08:51.000
one way or another and so really the
00:08:51.000 --> 00:08:53.000
inflection point is for big tech and
00:08:53.000 --> 00:08:55.000
we're also seeing the continued
00:08:54.000 --> 00:08:56.000
implosion of the AI bubble meta's AI
00:08:58.000 --> 00:09:00.000
research lab is reportedly dying a slow
00:09:00.000 --> 00:09:02.000
death some insiders are saying as the
00:09:02.000 --> 00:09:04.000
head of AI research announced her
00:09:04.000 --> 00:09:06.000
departure last week the timing of the
00:09:06.000 --> 00:09:08.000
resignation raised eyebrows you know
00:09:09.000 --> 00:09:11.000
people wondering was this just a
00:09:11.000 --> 00:09:13.000
personal thing or was there some
00:09:12.000 --> 00:09:14.000
critical fundamental issue with Meta
00:09:14.000 --> 00:09:16.000
Lama 4 models which rolled out in
00:09:16.000 --> 00:09:18.000
controversy drawing criticism from
00:09:19.000 --> 00:09:21.000
possibly inflated performance metrics
00:09:22.000 --> 00:09:24.000
and we're also seeing that I mean some
00:09:23.000 --> 00:09:25.000
tech CEOs are going to jail now over AI
00:09:26.000 --> 00:09:28.000
which was actually just manual human
00:09:28.000 --> 00:09:30.000
labor so they just had a bunch of people
00:09:30.000 --> 00:09:32.000
in the Philippines pretending to be AI
00:09:33.000 --> 00:09:35.000
going around acting like robots doing
00:09:35.000 --> 00:09:37.000
some virtual shopping for you and raised
00:09:37.000 --> 00:09:39.000
a couple million dollars based on that
00:09:39.000 --> 00:09:41.000
now the whole scheme is unwinding you've
00:09:42.000 --> 00:09:44.000
got Mirror Moradi from Open AI
00:09:44.000 --> 00:09:46.000
continuing to raise $2 billion seed
00:09:47.000 --> 00:09:49.000
round on essentially no product and no
00:09:49.000 --> 00:09:51.000
revenues to speak of emerging from
00:09:51.000 --> 00:09:53.000
stealth on nothing so the tech sector
00:09:54.000 --> 00:09:56.000
may still be in this AI bubble imploding
00:09:57.000 --> 00:09:59.000
in slow motion which is obuscated by the
00:10:00.000 --> 00:10:02.000
tariffs confusion but even without the
00:10:02.000 --> 00:10:04.000
tariffs we may still see this implosion
00:10:04.000 --> 00:10:06.000
happening and the dollar may continue to
00:10:06.000 --> 00:10:08.000
weaken now that it's been tested
00:10:09.000 --> 00:10:11.000
critical cracks are showing and it's
00:10:11.000 --> 00:10:13.000
been revealed that investors are fleeing
00:10:13.000 --> 00:10:15.000
not to the dollar as a safe haven
00:10:15.000 --> 00:10:17.000
anymore they're going to hard assets
00:10:16.000 --> 00:10:18.000
like gold or bitcoin now at 85500 and in
00:10:20.000 --> 00:10:22.000
my view we may still be in a recession
00:10:23.000 --> 00:10:25.000
right what are we building out here you
00:10:25.000 --> 00:10:27.000
know the AI robots thing is going to
00:10:27.000 --> 00:10:29.000
take another 10 20 years just to play
00:10:29.000 --> 00:10:31.000
out and chat GBT subscriptions cannot
00:10:32.000 --> 00:10:34.000
pay back billions of dollars hundreds of
00:10:34.000 --> 00:10:36.000
billions of dollars worth of investments
00:10:36.000 --> 00:10:38.000
right that's not going to recoup the
00:10:38.000 --> 00:10:40.000
costs let's take a look at the Bitcoin
00:10:40.000 --> 00:10:42.000
hash rate here it is skyrocketing to
00:10:42.000 --> 00:10:44.000
all-time highs and price follows hash
00:10:44.000 --> 00:10:46.000
rate look Look at the divergence here on
00:10:47.000 --> 00:10:49.000
the price versus the hash rate now if
00:10:49.000 --> 00:10:51.000
the price were to realign with hash rate
00:10:51.000 --> 00:10:53.000
which it inevitably does then we'd be at
00:10:53.000 --> 00:10:55.000
like over 100k now but this could be an
00:10:57.000 --> 00:10:59.000
opportune moment for you to buy the dip
00:10:59.000 --> 00:11:01.000
because there is a fundamental change in
00:11:02.000 --> 00:11:04.000
course where the tariff negotiations
00:11:04.000 --> 00:11:06.000
have stopped escalating and now we are
00:11:06.000 --> 00:11:08.000
in a deescalatory phase in which we may
00:11:09.000 --> 00:11:11.000
see more liquidity injections coming
00:11:11.000 --> 00:11:13.000
back flowing into the markets as we are
00:11:14.000 --> 00:11:16.000
deescalating and tariffs are starting to
00:11:16.000 --> 00:11:18.000
come down we've already reached max
00:11:18.000 --> 00:11:20.000
tariff we can't increase the tariffs
00:11:20.000 --> 00:11:22.000
anymore 500 1,000% and so with the
00:11:23.000 --> 00:11:25.000
liquidity starting to flow back into the
00:11:25.000 --> 00:11:27.000
markets the only question is which asset
00:11:27.000 --> 00:11:29.000
do you want to get into and if you're
00:11:29.000 --> 00:11:31.000
bearish on the economy kind of like I am
00:11:31.000 --> 00:11:33.000
and you think there's still a lot of
00:11:32.000 --> 00:11:34.000
counterparty risk to tech and the AI
00:11:34.000 --> 00:11:36.000
bubble then you may want to get into
00:11:36.000 --> 00:11:38.000
hard assets like say Bitcoin and the Fed
00:11:38.000 --> 00:11:40.000
has two choices it can either not print
00:11:41.000 --> 00:11:43.000
in which the economy either does well or
00:11:43.000 --> 00:11:45.000
does poorly in either case you probably
00:11:45.000 --> 00:11:47.000
want some hard assets or if the economy
00:11:47.000 --> 00:11:49.000
is really doing poorly then the Fed's
00:11:49.000 --> 00:11:51.000
going to be printing more you're going
00:11:50.000 --> 00:11:52.000
to still want hard assets and so we've
00:11:52.000 --> 00:11:54.000
kind of got this Fed put in place here
00:11:54.000 --> 00:11:56.000
they've already signal they're ready to
00:11:56.000 --> 00:11:58.000
step into the markets if necessary so
00:11:59.000 --> 00:12:01.000
they're willing to print and so with
00:12:01.000 --> 00:12:03.000
that hope you enjoyed the update let me
00:12:03.000 --> 00:12:05.000
know your market moves in the comments
00:12:04.000 --> 00:12:06.000
below i'll see you there personally I
00:12:07.000 --> 00:12:09.000
would like to see the US take more of a
00:12:09.000 --> 00:12:11.000
respectful stance against nations and
00:12:11.000 --> 00:12:13.000
workers and laborers people who are
00:12:13.000 --> 00:12:15.000
working hard to make our products goods
00:12:15.000 --> 00:12:17.000
and services and ship them into our
00:12:16.000 --> 00:12:18.000
countries and we owe them some basic
00:12:19.000 --> 00:12:21.000
respect for that i will leave you with a
00:12:21.000 --> 00:12:23.000
speech from President Xiinping chinese
00:12:23.000 --> 00:12:25.000
people have never bullied oppressed or
00:12:25.000 --> 00:12:27.000
subjugated the people of any other
00:12:26.000 --> 00:12:28.000
country and we never will we will also
00:12:28.000 --> 00:12:30.000
never allow any foreign force to bully
00:12:30.000 --> 00:12:32.000
oppress or subjugate us so that's it for
00:12:34.000 --> 00:12:36.000
now if you like the video give a like
00:12:35.000 --> 00:12:37.000
and subscribe see you in the next one
00:12:38.000 --> 00:12:40.000
[Applause]
00:12:41.000 --> 00:12:43.000
[Music]
00:12:42.000 --> 00:12:44.000
[Applause]
00:12:43.000 --> 00:12:45.000
[Music]
00:12:44.000 --> 00:12:46.000
[Applause]
00:12:46.000 --> 00:12:48.000
[Music]
00:12:50.000 --> 00:12:52.000
[Applause]
00:12:51.000 --> 00:12:53.000
[Music]
最終的なコード
import sys
import re
import os
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from bs4 import BeautifulSoup
import webvtt
import time
def extract_video_id(url):
"""YouTube URLから動画IDを抽出"""
patterns = [
r'(?:https?:\/\/)?(?:www\.)?youtube\.com\/watch\?v=([^&]+)',
r'(?:https?:\/\/)?youtu\.be\/([^?]+)'
]
for pattern in patterns:
match = re.match(pattern, url)
if match:
return match.group(1)
raise ValueError("無効なYouTube URLです")
def extract_youtube_transcript_to_vtt(url, quiet=False):
# Seleniumのオプション設定（Ubuntu向け）
chrome_options = Options()
chrome_options.add_argument("--headless")
chrome_options.add_argument("--no-sandbox")
chrome_options.add_argument("--disable-dev-shm-usage")
chrome_options.add_argument("--disable-gpu")
chrome_options.add_argument("user-agent=Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36")
chrome_options.add_argument("--window-size=1920,1080")
chrome_options.add_argument("--disable-blink-features=AutomationControlled")
chrome_options.add_experimental_option("excludeSwitches", ["enable-automation"])
chrome_options.add_argument("--disable-extensions")
chrome_options.add_argument("--start-maximized")
# WebDriverの初期化
driver = webdriver.Chrome(options=chrome_options)
try:
# YouTubeページを開く
driver.get(url)
if not quiet:
print("ページを読み込みました:", url)
time.sleep(3)
# 「Before you continue to YouTube」の「Reject all」ボタンを探す
try:
reject_all_button = WebDriverWait(driver, 15).until(
EC.element_to_be_clickable((By.XPATH, '//button[contains(@class, "yt-spec-button-shape-next") and (contains(text(), "Reject") or contains(@aria-label, "Reject"))]'))
)
if not quiet:
print("「Reject all」ボタンが見つかりました:", reject_all_button.get_attribute("outerHTML"))
driver.execute_script("arguments[0].scrollIntoView(true);", reject_all_button)
driver.execute_script("arguments[0].click();", reject_all_button)
try:
WebDriverWait(driver, 5).until(
EC.invisibility_of_element((By.TAG_NAME, "tp-yt-iron-overlay-backdrop"))
)
if not quiet:
print("オーバーレイが消えました")
except:
if not quiet:
print("オーバーレイの待機中にエラーが発生しましたが、続行します")
except Exception as e:
if not quiet:
print("「Reject all」ボタンが見つからないか、クリックできませんでした:", e)
print("ダイアログが表示されていない可能性があります。処理を続行します。")
# 広告のスキップや閉じる処理
for _ in range(2):
try:
skip_ad_button = WebDriverWait(driver, 5).until(
EC.element_to_be_clickable((By.XPATH, '//button[contains(@class, "ytp-ad-skip-button") or contains(text(), "Skip")]'))
)
if not quiet:
print("広告の「スキップ」ボタンが見つかりました:", skip_ad_button.get_attribute("outerHTML"))
driver.execute_script("arguments[0].click();", skip_ad_button)
if not quiet:
print("広告をスキップしました")
time.sleep(1)
except:
if not quiet:
print("広告の「スキップ」ボタンが見つかりませんでした。広告がないか、スキップ不要です。")
break
# 「...more」ボタンをクリック
try:
more_button = WebDriverWait(driver, 40).until(
EC.element_to_be_clickable((By.XPATH, '//tp-yt-paper-button[@id="expand"]'))
)
if not quiet:
print("「...more」ボタンが見つかりました:", more_button.get_attribute("outerHTML"))
driver.execute_script("arguments[0].scrollIntoView({block: 'center', behavior: 'smooth'});", more_button)
time.sleep(0.5)
driver.execute_script("arguments[0].click();", more_button)
time.sleep(2)
except Exception as e:
if not quiet:
print("「...more」ボタンが見つからないか、クリックできませんでした:", e)
driver.save_screenshot("more_button_error.png")
with open("more_button_error.html", "w", encoding="utf-8") as f:
f.write(driver.page_source)
print("ページのHTMLを more_button_error.html に、スクリーンショットを more_button_error.png に保存しました")
return None, None
# 「Show transcript」ボタンをクリック
try:
transcript_button = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//button[@aria-label="Show transcript"]'))
)
if not quiet:
print("「Show transcript」ボタンが見つかりました:", transcript_button.get_attribute("outerHTML"))
driver.execute_script("arguments[0].scrollIntoView(true);", transcript_button)
driver.execute_script("arguments[0].click();", transcript_button)
time.sleep(2)
except Exception as e:
if not quiet:
print("「Show transcript」ボタンが見つからないか、クリックできませんでした:", e)
return None, None
# トランスクリプトコンテナがロードされるまで待機
try:
WebDriverWait(driver, 20).until(
EC.presence_of_element_located((By.ID, 'body'))
)
if not quiet:
print("トランスクリプトのコンテナ（<div id='body'>）がロードされました")
except Exception as e:
if not quiet:
print("トランスクリプトコンテナの読み込みに失敗しました:", e)
driver.save_screenshot("transcript_error.png")
with open("transcript_error.html", "w", encoding="utf-8") as f:
f.write(driver.page_source)
print("ページのHTMLを transcript_error.html に、スクリーンショットを transcript_error.png に保存しました")
return None, None
# トランスクリプトのセグメントコンテナがロードされるまで待機
max_attempts = 3
for attempt in range(max_attempts):
try:
WebDriverWait(driver, 40).until(
EC.presence_of_element_located((By.ID, 'segments-container'))
)
if not quiet:
print("トランスクリプトのセグメントコンテナ（<div id='segments-container'>）がロードされました")
break
except Exception as e:
if not quiet:
print(f"試行 {attempt+1}/{max_attempts}: トランスクリプトセグメントコンテナの読み込みに失敗しました:", e)
if attempt < max_attempts - 1:
if not quiet:
print("再試行します...")
time.sleep(5)
driver.execute_script("arguments[0].click();", transcript_button)
else:
if not quiet:
print("最終試行でも失敗しました")
driver.save_screenshot("transcript_error.png")
with open("transcript_error.html", "w", encoding="utf-8") as f:
f.write(driver.page_source)
print("ページのHTMLを transcript_error.html に、スクリーンショットを transcript_error.png に保存しました")
return None, None
# ページのHTMLを取得
page_source = driver.page_source
soup = BeautifulSoup(page_source, 'html.parser')
# トランスクリプトのdiv要素を抽出
transcript_div = soup.find('div', id='body', class_='style-scope ytd-transcript-search-panel-renderer')
if not transcript_div:
if not quiet:
print("トランスクリプトのコンテナ（<div id='body' class='style-scope ytd-transcript-search-panel-renderer'>）が見つかりませんでした")
driver.save_screenshot("transcript_error.png")
with open("transcript_error.html", "w", encoding="utf-8") as f:
f.write(driver.page_source)
print("ページのHTMLを transcript_error.html に、スクリーンショットを transcript_error.png に保存しました")
return None, None
# トランスクリプトコンテナの内容をログに記録
if not quiet:
print("トランスクリプトコンテナのHTML:", str(transcript_div)[:2000])
# セグメントコンテナを取得
segments_container = transcript_div.find('div', id='segments-container')
if not segments_container:
if not quiet:
print("セグメントコンテナ（<div id='segments-container'>）が見つかりませんでした")
driver.save_screenshot("transcript_error.png")
with open("transcript_error.html", "w", encoding="utf-8") as f:
f.write(driver.page_source)
print("ページのHTMLを transcript_error.html に、スクリーンショットを transcript_error.png に保存しました")
return None, None
# セグメントコンテナの内容をログに記録
if not quiet:
print("セグメントコンテナのHTML:", str(segments_container)[:2000])
# トランスクリプトのセグメントを取得（完全なセグメントのみ）
segments = segments_container.find_all('div', class_='segment style-scope ytd-transcript-segment-renderer')
if not segments:
if not quiet:
print("完全なトランスクリプトのセグメント（segment style-scope ytd-transcript-segment-renderer）が見つかりませんでした")
segments = segments_container.find_all('div', class_=lambda x: x and 'ytd-transcript-segment-renderer' in x)
if segments:
if not quiet:
print("代替セレクタでセグメントが見つかりました:", len(segments))
else:
if not quiet:
print("代替セレクタでもセグメントが見つかりませんでした")
driver.save_screenshot("transcript_error.png")
with open("transcript_error.html", "w", encoding="utf-8") as f:
f.write(driver.page_source)
print("ページのHTMLを transcript_error.html に、スクリーンショットを transcript_error.png に保存しました")
return None, None
# VTTファイルを作成
vtt = webvtt.WebVTT()
if not quiet:
print(f"トランスクリプトセグメント数: {len(segments)}")
# トランスクリプトの各セグメントを処理
i = 0
while i < len(segments):
segment = segments[i]
if not quiet:
print(f"セグメント {i+1} のHTML:", str(segment)[:500])
# タイムスタンプを取得
timestamp_elem = segment.find('div', class_='segment-timestamp style-scope ytd-transcript-segment-renderer')
timestamp = timestamp_elem.text.strip() if timestamp_elem else None
# テキストを取得
text_elem = segment.find('yt-formatted-string', class_='segment-text style-scope ytd-transcript-segment-renderer')
text = text_elem.text.strip() if text_elem else None
# テキストがなく、次のセグメントにテキストがある場合、マージを試みる
if not text and i + 1 < len(segments):
next_segment = segments[i + 1]
next_text_elem = next_segment.find('yt-formatted-string', class_='segment-text style-scope ytd-transcript-segment-renderer')
next_timestamp_elem = next_segment.find('div', class_='segment-timestamp style-scope ytd-transcript-segment-renderer')
if next_text_elem and not next_timestamp_elem:
text = next_text_elem.text.strip()
if not quiet:
print(f"セグメント {i+1} にテキストなし。セグメント {i+2} のテキストをマージ: {text}")
i += 1
if not quiet:
print(f"セグメント {i+1}: タイムスタンプ={timestamp}, テキスト={text}")
if not timestamp or not text:
if not quiet:
print(f"セグメント {i+1} のタイムスタンプまたはテキストが欠けています。スキップします")
i += 1
continue
# タイムスタンプを秒に変換
try:
time_parts = timestamp.split(':')
minutes = int(time_parts[0])
seconds = int(time_parts[1])
start_time = minutes * 60 + seconds
end_time = start_time + 2 # 仮に2秒
start_str = f"{start_time // 60:02d}:{start_time % 60:02d}.000"
end_str = f"{end_time // 60:02d}:{end_time % 60:02d}.000"
except (ValueError, IndexError) as e:
if not quiet:
print(f"セグメント {i+1} のタイムスタンプ解析エラー: {e}")
i += 1
continue
# WebVTTキャプションを追加
caption = webvtt.Caption(
start=start_str,
end=end_str,
text=text
)
vtt.captions.append(caption)
i += 1
if not vtt.captions:
if not quiet:
print("VTTキャプションが生成されませんでした。セグメントに有効なデータがない可能性があります")
driver.save_screenshot("transcript_error.png")
with open("transcript_error.html", "w", encoding="utf-8") as f:
f.write(driver.page_source)
print("ページのHTMLを transcript_error.html に、スクリーンショットを transcript_error.png に保存しました")
return None, None
if not quiet:
print("VTTキャプションを生成しました")
return vtt, video_id
finally:
driver.quit()
if __name__ == "__main__":
if len(sys.argv) < 2:
print("使用法: python get_vtt_from_youtube.py <YouTube_URL> [--quiet]")
sys.exit(1)
url = sys.argv[1]
quiet = "--quiet" in sys.argv
try:
video_id = extract_video_id(url)
vtt, extracted_video_id = extract_youtube_transcript_to_vtt(url, quiet)
if vtt:
output_file = f"{extracted_video_id}.vtt"
if os.path.exists(output_file):
print(f"警告: {output_file} は既に存在します。上書きしますか？ [y/N]")
if input().lower() != 'y':
print("処理を中止しました")
sys.exit(1)
print(f"生成されたVTT内容を {output_file} に保存します")
vtt.save(output_file) # webvttライブラリで直接保存
print(f"{output_file} を保存しました")
else:
print("トランスクリプトの取得に失敗しました")
except ValueError as e:
print(f"エラー: {e}")
sys.exit(1)