Update app.py

app.py

@@ -1,35 +1,41 @@
 import torch
-
+# from PIL import Image
 import gradio as gr
-import yt_dlp as youtube_dl
+import yt_dlp as youtube_dl # 用 yt_dlp 代替 pytube
 from transformers import pipeline
-from transformers.pipelines.audio_utils import ffmpeg_read
-
-import tempfile
-import os
-
-MODEL_NAME = "openai/whisper-large-v3"
-BATCH_SIZE = 8
-FILE_LIMIT_MB = 100000
-YT_LENGTH_LIMIT_S = 360000  # limit to 1 hour YouTube files
 
+MODEL_NAME = "openai/whisper-large-v2"
 device = 0 if torch.cuda.is_available() else "cpu"
-
 pipe = pipeline(
     task="automatic-speech-recognition",
     model=MODEL_NAME,
-    chunk_length_s=300,
+    chunk_length_s=30,
     device=device,
 )
 
-
-def transcribe(inputs, task):
-    if inputs is None:
-        raise gr.Error("No audio file submitted! Please upload or record an audio file before submitting your request.")
-
-    text = pipe(inputs, batch_size=BATCH_SIZE, generate_kwargs={"task": task}, return_timestamps=True)["text"]
-    return  text
-
+all_special_ids = pipe.tokenizer.all_special_ids
+transcribe_token_id = all_special_ids[-5]
+translate_token_id = all_special_ids[-6]
+
+def transcribe(microphone, file_upload, task):
+    warn_output = ""
+    if (microphone is not None) and (file_upload is not None):
+        warn_output = (
+            "警告：您已经上传了一个音频文件并使用了麦克录制。 "
+            "录制文件将被使用上传的音频将被丢弃。[^1^][1] \n"
+        )
+    elif (microphone is None) and (file_upload is None):
+        return "错误: 您必须使用麦克风录制或上传音频文件"
+
+    file = microphone if microphone is not None else file_upload
+    pipe.model.config.forced_decoder_ids = [
+        [2, transcribe_token_id if task == "transcribe" else translate_token_id]
+    ]
+    # text = pipe(file, return_timestamps=True)["text"]
+    text = pipe(file, return_timestamps=True)
+    # trans to SRT
+    text = convert_to_srt(text)
+    return warn_output + text
 
 def _return_yt_html_embed(yt_url):
     video_id = yt_url.split("?v=")[-1]
@@ -39,145 +45,97 @@ def _return_yt_html_embed(yt_url):
     )
     return HTML_str
 
-def download_yt_audio(yt_url, filename):
-    info_loader = youtube_dl.YoutubeDL()
-    
-    try:
-        info = info_loader.extract_info(yt_url, download=False)
-    except youtube_dl.utils.DownloadError as err:
-        raise gr.Error(str(err))
-    
-    file_length = info["duration_string"]
-    file_h_m_s = file_length.split(":")
-    file_h_m_s = [int(sub_length) for sub_length in file_h_m_s]
-    
-    if len(file_h_m_s) == 1:
-        file_h_m_s.insert(0, 0)
-    if len(file_h_m_s) == 2:
-        file_h_m_s.insert(0, 0)
-    file_length_s = file_h_m_s[0] * 3600 + file_h_m_s[1] * 60 + file_h_m_s[2]
-    
-    if file_length_s > YT_LENGTH_LIMIT_S:
-        yt_length_limit_hms = time.strftime("%HH:%MM:%SS", time.gmtime(YT_LENGTH_LIMIT_S))
-        file_length_hms = time.strftime("%HH:%MM:%SS", time.gmtime(file_length_s))
-        raise gr.Error(f"Maximum YouTube length is {yt_length_limit_hms}, got {file_length_hms} YouTube video.")
-    
-    ydl_opts = {"outtmpl": filename, "format": "worstvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best"}
-    
-    with youtube_dl.YoutubeDL(ydl_opts) as ydl:
-        try:
-            ydl.download([yt_url])
-        except youtube_dl.utils.ExtractorError as err:
-            raise gr.Error(str(err))
-
-
 def yt_transcribe(yt_url, task):
+    # yt = pt.YouTube(yt_url) # 用 yt_dlp 代替 pytube
+    ydl = youtube_dl.YoutubeDL({"format": "bestaudio"}) # 创建 yt_dlp 对象
+    info = ydl.extract_info(yt_url, download=False) # 提取视频信息
+    audio_url = info["formats"][0]["url"] # 获取音频链接
     html_embed_str = _return_yt_html_embed(yt_url)
-
-    with tempfile.TemporaryDirectory() as tmpdirname:
-        filepath = os.path.join(tmpdirname, "video.mp4")
-        download_yt_audio(yt_url, filepath)
-        with open(filepath, "rb") as f:
-            inputs = f.read()
-
-    inputs = ffmpeg_read(inputs, pipe.feature_extractor.sampling_rate)
-    inputs = {"array": inputs, "sampling_rate": pipe.feature_extractor.sampling_rate}
-
-    
-    text = pipe(inputs,return_timestamps=True)    
-    # text = pipe(inputs, batch_size=BATCH_SIZE, generate_kwargs={"language":"zh"}, return_timestamps=True)
-    # text = pipe(inputs, batch_size=BATCH_SIZE, generate_kwargs={"task": task}, return_timestamps=True)["text"]
-    # text = pipe("audio.mp3",return_timestamps=True)
-    #trans to SRT
-    text= convert_to_srt(text)
+    # stream = yt.streams.filter(only_audio=True)[0]
+    # stream.download(filename="audio.mp3")
+    ydl.download([audio_url]) # 下载音频文件
+    pipe.model.config.forced_decoder_ids = [
+        [2, transcribe_token_id if task == "transcribe" else translate_token_id]
+    ]
+    text = pipe("audio.mp3", return_timestamps=True)
+    # text = pipe("audio.mp3", return_timestamps=True)["text"]
+    # trans to SRT
+    text = convert_to_srt(text)
     return html_embed_str, text
 
-    
-# SRT prepare
 # Assuming srt format is a sequence of subtitles with index, time range and text
 def convert_to_srt(input):
-  output = ""
-  index = 1
-  for chunk in input["chunks"]:
-    start, end = chunk["timestamp"]
-    text = chunk["text"]
-    if end is None:
-      end = "None"
-    # Convert seconds to hours:minutes:seconds,milliseconds format
-    start = format_time(start)
-    end = format_time(end)
-    output += f"{index}\n{start} --> {end}\n{text}\n\n"
-    index += 1
-  return output
+    output = ""
+    index = 1
+    for chunk in input["chunks"]:
+        start, end = chunk["timestamp"]
+        text = chunk["text"]
+        if end is None:
+            end = "None"
+        # Convert seconds to hours:minutes:seconds,milliseconds format
+        start = format_time(start)
+        end = format_time(end)
+        output += f"{index}\n{start} --> {end}\n{text}\n\n"
+        index += 1
+    return output
 
 # Helper function to format time
 def format_time(seconds):
-  if seconds == "None":
-    return seconds
-  hours = int(seconds // 3600)
-  minutes = int((seconds % 3600) // 60)
-  seconds = int(seconds % 60)
-  milliseconds = int((seconds % 1) * 1000)
-  return f"{hours:02}:{minutes:02}:{seconds:02},{milliseconds:03}"
-
+    if seconds == "None":
+        return seconds
+    hours = int(seconds // 3600)
+    minutes = int((seconds % 3600) // 60)
+    seconds = int(seconds % 60)
+    milliseconds = int((seconds % 1) * 1000)
+    return f"{hours:02}:{minutes:02}:{seconds:02},{milliseconds:03}"
 
 demo = gr.Blocks()
-
 mf_transcribe = gr.Interface(
     fn=transcribe,
     inputs=[
         gr.inputs.Audio(source="microphone", type="filepath", optional=True),
+        gr.inputs.Audio(source="upload", type="filepath", optional=True),
         gr.inputs.Radio(["transcribe", "translate"], label="Task", default="transcribe"),
     ],
     outputs="text",
     layout="horizontal",
     theme="huggingface",
-    title="Whisper Large V3: Transcribe Audio",
-    description=(
-        "Transcribe long-form microphone or audio inputs with the click of a button! Demo uses the OpenAI Whisper"
-        f" checkpoint [{MODEL_NAME}](https://huggingface.co/{MODEL_NAME}) and 🤗 Transformers to transcribe audio files"
-        " of arbitrary length."
-    ),
-    allow_flagging="never",
-)
-
-file_transcribe = gr.Interface(
-    fn=transcribe,
-    inputs=[
-        gr.inputs.Audio(source="upload", type="filepath", optional=True, label="Audio file"),
-        gr.inputs.Radio(["transcribe", "translate"], label="Task", default="transcribe"),
-    ],
-    outputs="text",
-    layout="horizontal",
-    theme="huggingface",
-    title="Whisper Large V3: Transcribe Audio",
+    title="Audio-to-Text-SRT 自动生成字幕",
     description=(
-        "Transcribe long-form microphone or audio inputs with the click of a button! Demo uses the OpenAI Whisper"
-        f" checkpoint [{MODEL_NAME}](https://huggingface.co/{MODEL_NAME}) and 🤗 Transformers to transcribe audio files"
-        " of arbitrary length."
+        "直接在网页录音或上传音频文件，加入Youtube连接，轻松转换为文字和字幕格式! 本演示采用"
+        f" 模型 [{MODEL_NAME}](https://huggingface.co/{MODEL_NAME}) 和 🤗 Transformers 转换任意长度的"[^2^][2]
+        "音视频文件!使用GPU转换效率会大幅提高，大约每小时 $0.6 约相当于人民币 5 元。 如果您有较长内容,需要更快的转换速度，请私信作者微信 1259388，并备注“语音转文字”。[^3^][3] "
     ),
     allow_flagging="never",
 )
-
 yt_transcribe = gr.Interface(
     fn=yt_transcribe,
     inputs=[
-        gr.inputs.Textbox(lines=1, placeholder="Paste the URL to a YouTube video here", label="YouTube URL"),
-        gr.inputs.Radio(["transcribe", "translate"], label="Task", default="transcribe")
+        gr.inputs.Textbox(lines=1, placeholder="Paste the URL to a YouTube video here", label="YouTube URL"),[^4^][4]
+        gr.inputs.Radio(["转译", "翻译"], label="Task", default="transcribe")
     ],
     outputs=["html", "text"],
     layout="horizontal",
     theme="huggingface",
-    title="Whisper Large V3: Transcribe YouTube",
+    title="Audio-to-Text-SRT 自动生成字幕",
     description=(
-        "Transcribe long-form YouTube videos with the click of a button! Demo uses the OpenAI Whisper checkpoint"
-        f" [{MODEL_NAME}](https://huggingface.co/{MODEL_NAME}) and 🤗 Transformers to transcribe video files of"
-        " arbitrary length."
+        "直接在网页录音或上传音频文件，加入Youtube连接，轻松转换为文字和字幕格式! 本演示采用"
+        f" 模型 [{MODEL_NAME}](https://huggingface.co/{MODEL_NAME}) 和 🤗 Transformers 转换任意长度的"[^2^][2]
+        "音视频文件!使用GPU转换效率会大幅提高，大约每小时 $0.6 约相当于人民币 5 元。 如果您有较长内容,需要更快的转换速度，请私信作者微信 1259388，并备注“语音转文字”。[^3^][3] "
     ),
     allow_flagging="never",
 )
 
-with demo:
-    gr.TabbedInterface([mf_transcribe, file_transcribe, yt_transcribe], ["Microphone", "Audio file", "YouTube"])
+# # Load the images
+# image1 = Image("wechatqrcode.jpg")
+# image2 = Image("paypalqrcode.png")
+
+# # Define a function that returns the images and captions
+# def display_images():
+#     return image1, "WeChat Pay", image2, "PayPal"
 
+with demo:
+    gr.TabbedInterface([mf_transcribe, yt_transcribe], ["转译音频成文字", "YouTube转字幕"])
+# Create a gradio interface with no inputs and four outputs
+# gr.Interface(display_images, [], [gr.outputs.Image(), gr.outputs.Textbox(), gr.outputs.Image(), gr.outputs.Textbox()], layout="horizontal").launch()
 demo.launch(enable_queue=True)