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import os
import subprocess
import json
from datetime import timedelta
import tempfile
import re
import yt_dlp
import gradio as gr
import groq
from groq import Groq
# setup groq
client = Groq(api_key=os.environ.get("Groq_Api_Key"))
def handle_groq_error(e, model_name):
error_data = e.args[0]
if isinstance(error_data, str):
# Use regex to extract the JSON part of the string
json_match = re.search(r'(\{.*\})', error_data)
if json_match:
json_str = json_match.group(1)
# Ensure the JSON string is well-formed
json_str = json_str.replace("'", '"') # Replace single quotes with double quotes
error_data = json.loads(json_str)
if isinstance(e, groq.AuthenticationError):
if isinstance(error_data, dict) and 'error' in error_data and 'message' in error_data['error']:
error_message = error_data['error']['message']
raise gr.Error(error_message)
elif isinstance(e, groq.RateLimitError):
if isinstance(error_data, dict) and 'error' in error_data and 'message' in error_data['error']:
error_message = error_data['error']['message']
raise gr.Error(error_message)
else:
raise gr.Error(f"Error during Groq API call: {e}")
# language codes for subtitle maker
LANGUAGE_CODES = {
"English": "en",
"Chinese": "zh",
"German": "de",
"Spanish": "es",
"Russian": "ru",
"Korean": "ko",
"French": "fr",
"Japanese": "ja",
"Portuguese": "pt",
"Turkish": "tr",
"Polish": "pl",
"Catalan": "ca",
"Dutch": "nl",
"Arabic": "ar",
"Swedish": "sv",
"Italian": "it",
"Indonesian": "id",
"Hindi": "hi",
"Finnish": "fi",
"Vietnamese": "vi",
"Hebrew": "he",
"Ukrainian": "uk",
"Greek": "el",
"Malay": "ms",
"Czech": "cs",
"Romanian": "ro",
"Danish": "da",
"Hungarian": "hu",
"Tamil": "ta",
"Norwegian": "no",
"Thai": "th",
"Urdu": "ur",
"Croatian": "hr",
"Bulgarian": "bg",
"Lithuanian": "lt",
"Latin": "la",
"Māori": "mi",
"Malayalam": "ml",
"Welsh": "cy",
"Slovak": "sk",
"Telugu": "te",
"Persian": "fa",
"Latvian": "lv",
"Bengali": "bn",
"Serbian": "sr",
"Azerbaijani": "az",
"Slovenian": "sl",
"Kannada": "kn",
"Estonian": "et",
"Macedonian": "mk",
"Breton": "br",
"Basque": "eu",
"Icelandic": "is",
"Armenian": "hy",
"Nepali": "ne",
"Mongolian": "mn",
"Bosnian": "bs",
"Kazakh": "kk",
"Albanian": "sq",
"Swahili": "sw",
"Galician": "gl",
"Marathi": "mr",
"Panjabi": "pa",
"Sinhala": "si",
"Khmer": "km",
"Shona": "sn",
"Yoruba": "yo",
"Somali": "so",
"Afrikaans": "af",
"Occitan": "oc",
"Georgian": "ka",
"Belarusian": "be",
"Tajik": "tg",
"Sindhi": "sd",
"Gujarati": "gu",
"Amharic": "am",
"Yiddish": "yi",
"Lao": "lo",
"Uzbek": "uz",
"Faroese": "fo",
"Haitian": "ht",
"Pashto": "ps",
"Turkmen": "tk",
"Norwegian Nynorsk": "nn",
"Maltese": "mt",
"Sanskrit": "sa",
"Luxembourgish": "lb",
"Burmese": "my",
"Tibetan": "bo",
"Tagalog": "tl",
"Malagasy": "mg",
"Assamese": "as",
"Tatar": "tt",
"Hawaiian": "haw",
"Lingala": "ln",
"Hausa": "ha",
"Bashkir": "ba",
"jw": "jw",
"Sundanese": "su",
}
# download link input
def yt_dlp_download(link):
try:
ydl_opts = {
'format': 'bestvideo+bestaudio/best', # Download best video and audio or best available
'outtmpl': '%(title)s.%(ext)s',
'nocheckcertificate': True,
'ignoreerrors': False,
'no_warnings': True,
'quiet': True,
}
with yt_dlp.YoutubeDL(ydl_opts) as ydl:
ydl.download([link])
result = ydl.extract_info(link, download=False)
download_path = ydl.prepare_filename(result)
return download_path
except yt_dlp.utils.DownloadError as e:
raise gr.Error(f"Download Error: {e}")
except ValueError as e:
raise gr.Error(f"Invalid Link or Format Error: {e}")
except Exception as e:
raise gr.Error(f"An unexpected error occurred: {e}")
# helper functions
def split_audio(input_file_path, chunk_size_mb):
chunk_size = chunk_size_mb * 1024 * 1024 # Convert MB to bytes
file_number = 1
chunks = []
with open(input_file_path, 'rb') as f:
chunk = f.read(chunk_size)
while chunk:
chunk_name = f"{os.path.splitext(input_file_path)[0]}_part{file_number:03}.mp3" # Pad file number for correct ordering
with open(chunk_name, 'wb') as chunk_file:
chunk_file.write(chunk)
chunks.append(chunk_name)
file_number += 1
chunk = f.read(chunk_size)
return chunks
def merge_audio(chunks, output_file_path):
with open("temp_list.txt", "w") as f:
for file in chunks:
f.write(f"file '{file}'\n")
try:
subprocess.run(
[
"ffmpeg",
"-f",
"concat",
"-safe", "0",
"-i",
"temp_list.txt",
"-c",
"copy",
"-y",
output_file_path
],
check=True
)
os.remove("temp_list.txt")
for chunk in chunks:
os.remove(chunk)
except subprocess.CalledProcessError as e:
raise gr.Error(f"Error during audio merging: {e}")
# Checks file extension, size, and downsamples or splits if needed.
ALLOWED_FILE_EXTENSIONS = ["mp3", "mp4", "mpeg", "mpga", "m4a", "wav", "webm"]
MAX_FILE_SIZE_MB = 25
CHUNK_SIZE_MB = 25
def check_file(input_file_path):
if not input_file_path:
raise gr.Error("Please upload an audio/video file.")
file_size_mb = os.path.getsize(input_file_path) / (1024 * 1024)
file_extension = input_file_path.split(".")[-1].lower()
if file_extension not in ALLOWED_FILE_EXTENSIONS:
raise gr.Error(f"Invalid file type (.{file_extension}). Allowed types: {', '.join(ALLOWED_FILE_EXTENSIONS)}")
if file_size_mb > MAX_FILE_SIZE_MB:
gr.Warning(
f"File size too large ({file_size_mb:.2f} MB). Attempting to downsample to 16kHz MP3 128kbps. Maximum size allowed: {MAX_FILE_SIZE_MB} MB"
)
output_file_path = os.path.splitext(input_file_path)[0] + "_downsampled.mp3"
try:
subprocess.run(
[
"ffmpeg",
"-i",
input_file_path,
"-ar",
"16000",
"-ab",
"128k",
"-ac",
"1",
"-f",
"mp3",
"-y",
output_file_path,
],
check=True
)
# Check size after downsampling
downsampled_size_mb = os.path.getsize(output_file_path) / (1024 * 1024)
if downsampled_size_mb > MAX_FILE_SIZE_MB:
gr.Warning(f"File still too large after downsampling ({downsampled_size_mb:.2f} MB). Splitting into {CHUNK_SIZE_MB} MB chunks.")
return split_audio(output_file_path, CHUNK_SIZE_MB), "split"
return output_file_path, None
except subprocess.CalledProcessError as e:
raise gr.Error(f"Error during downsampling: {e}")
return input_file_path, None
# subtitle maker
def format_time(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}"
def json_to_srt(transcription_json):
srt_lines = []
for segment in transcription_json:
start_time = format_time(segment['start'])
end_time = format_time(segment['end'])
text = segment['text']
srt_line = f"{segment['id']+1}\n{start_time} --> {end_time}\n{text}\n"
srt_lines.append(srt_line)
return '\n'.join(srt_lines)
def generate_subtitles(input_mode, input_file, link_input, prompt, language, auto_detect_language, model, include_video, font_selection, font_file, font_color, font_size, outline_thickness, outline_color):
if input_mode == "Upload Video/Audio File":
input_file_path = input_file
elif input_mode == "Link Video/Audio":
input_file_path = yt_dlp_download(link_input)
processed_path, split_status = check_file(input_file_path)
full_srt_content = ""
total_duration = 0
segment_id_offset = 0
if split_status == "split":
srt_chunks = []
video_chunks = []
for i, chunk_path in enumerate(processed_path):
try:
with open(chunk_path, "rb") as file:
transcription_json_response = client.audio.transcriptions.create(
file=(os.path.basename(chunk_path), file.read()),
model=model,
prompt=prompt,
response_format="verbose_json",
language=None if auto_detect_language else language,
temperature=0.0,
)
transcription_json = transcription_json_response.segments
# Adjust timestamps and segment IDs
for segment in transcription_json:
segment['start'] += total_duration
segment['end'] += total_duration
segment['id'] += segment_id_offset
segment_id_offset += len(transcription_json)
total_duration += transcription_json[-1]['end'] # Update total duration
srt_content = json_to_srt(transcription_json)
full_srt_content += srt_content
temp_srt_path = f"{os.path.splitext(chunk_path)[0]}.srt"
with open(temp_srt_path, "w", encoding="utf-8") as temp_srt_file:
temp_srt_file.write(srt_content)
temp_srt_file.write("\n") # add a new line at the end of the srt chunk file to fix format when merged
srt_chunks.append(temp_srt_path)
if include_video and input_file_path.lower().endswith((".mp4", ".webm")):
try:
output_file_path = chunk_path.replace(os.path.splitext(chunk_path)[1], "_with_subs" + os.path.splitext(chunk_path)[1])
# Handle font selection
if font_selection == "Custom Font File" and font_file:
font_name = os.path.splitext(os.path.basename(font_file.name))[0] # Get font filename without extension
font_dir = os.path.dirname(font_file.name) # Get font directory path
elif font_selection == "Custom Font File" and not font_file:
font_name = None # Let FFmpeg use its default Arial
font_dir = None # No font directory
gr.Warning(f"You want to use a Custom Font File, but uploaded none. Using the default Arial font.")
elif font_selection == "Arial":
font_name = None # Let FFmpeg use its default Arial
font_dir = None # No font directory
# FFmpeg command
subprocess.run(
[
"ffmpeg",
"-y",
"-i",
chunk_path,
"-vf",
f"subtitles={temp_srt_path}:fontsdir={font_dir}:force_style='Fontname={font_name},Fontsize={int(font_size)},PrimaryColour=&H{font_color[1:]}&,OutlineColour=&H{outline_color[1:]}&,BorderStyle={int(outline_thickness)},Outline=1'",
"-preset", "fast",
output_file_path,
],
check=True,
)
video_chunks.append(output_file_path)
except subprocess.CalledProcessError as e:
raise gr.Error(f"Error during subtitle addition: {e}")
elif include_video and not input_file_path.lower().endswith((".mp4", ".webm")):
gr.Warning(f"You have checked on the 'Include Video with Subtitles', but the input file {input_file_path} isn't a video (.mp4 or .webm). Returning only the SRT File.", duration=15)
except groq.AuthenticationError as e:
handle_groq_error(e, model)
except groq.RateLimitError as e:
handle_groq_error(e, model)
gr.Warning(f"API limit reached during chunk {i+1}. Returning processed chunks only.")
if srt_chunks and video_chunks:
merge_audio(video_chunks, 'merged_output_video.mp4')
with open('merged_output.srt', 'w', encoding="utf-8") as outfile:
for chunk_srt in srt_chunks:
with open(chunk_srt, 'r', encoding="utf-8") as infile:
outfile.write(infile.read())
return 'merged_output.srt', 'merged_output_video.mp4'
else:
raise gr.Error("Subtitle generation failed due to API limits.")
# Merge SRT chunks
final_srt_path = os.path.splitext(input_file_path)[0] + "_final.srt"
with open(final_srt_path, 'w', encoding="utf-8") as outfile:
for chunk_srt in srt_chunks:
with open(chunk_srt, 'r', encoding="utf-8") as infile:
outfile.write(infile.read())
# Merge video chunks
if video_chunks:
merge_audio(video_chunks, 'merged_output_video.mp4')
return final_srt_path, 'merged_output_video.mp4'
else:
return final_srt_path, None
else: # Single file processing (no splitting)
try:
with open(processed_path, "rb") as file:
transcription_json_response = client.audio.transcriptions.create(
file=(os.path.basename(processed_path), file.read()),
model=model,
prompt=prompt,
response_format="verbose_json",
language=None if auto_detect_language else language,
temperature=0.0,
)
transcription_json = transcription_json_response.segments
srt_content = json_to_srt(transcription_json)
temp_srt_path = os.path.splitext(input_file_path)[0] + ".srt"
with open(temp_srt_path, "w", encoding="utf-8") as temp_srt_file:
temp_srt_file.write(srt_content)
if include_video and input_file_path.lower().endswith((".mp4", ".webm")):
try:
output_file_path = input_file_path.replace(
os.path.splitext(input_file_path)[1], "_with_subs" + os.path.splitext(input_file_path)[1]
)
# Handle font selection
if font_selection == "Custom Font File" and font_file:
font_name = os.path.splitext(os.path.basename(font_file.name))[0] # Get font filename without extension
font_dir = os.path.dirname(font_file.name) # Get font directory path
elif font_selection == "Custom Font File" and not font_file:
font_name = None # Let FFmpeg use its default Arial
font_dir = None # No font directory
gr.Warning(f"You want to use a Custom Font File, but uploaded none. Using the default Arial font.")
elif font_selection == "Arial":
font_name = None # Let FFmpeg use its default Arial
font_dir = None # No font directory
# FFmpeg command
subprocess.run(
[
"ffmpeg",
"-y",
"-i",
input_file_path,
"-vf",
f"subtitles={temp_srt_path}:fontsdir={font_dir}:force_style='FontName={font_name},Fontsize={int(font_size)},PrimaryColour=&H{font_color[1:]}&,OutlineColour=&H{outline_color[1:]}&,BorderStyle={int(outline_thickness)},Outline=1'",
"-preset", "fast",
output_file_path,
],
check=True,
)
return temp_srt_path, output_file_path
except subprocess.CalledProcessError as e:
raise gr.Error(f"Error during subtitle addition: {e}")
elif include_video and not input_file_path.lower().endswith((".mp4", ".webm")):
gr.Warning(f"You have checked on the 'Include Video with Subtitles', but the input file {input_file_path} isn't a video (.mp4 or .webm). Returning only the SRT File.", duration=15)
return temp_srt_path, None
except groq.AuthenticationError as e:
handle_groq_error(e, model)
except groq.RateLimitError as e:
handle_groq_error(e, model)
except ValueError as e:
raise gr.Error(f"Error creating SRT file: {e}")
theme = gr.themes.Soft(
primary_hue="sky",
secondary_hue="blue",
neutral_hue="neutral"
).set(
border_color_primary='*neutral_300',
block_border_width='1px',
block_border_width_dark='1px',
block_title_border_color='*secondary_100',
block_title_border_color_dark='*secondary_200',
input_background_fill_focus='*secondary_300',
input_border_color='*border_color_primary',
input_border_color_focus='*secondary_500',
input_border_width='1px',
input_border_width_dark='1px',
slider_color='*secondary_500',
slider_color_dark='*secondary_600'
)
css = """
.gradio-container{max-width: 1400px !important}
h1{text-align:center}
.extra-option {
display: none;
}
.extra-option.visible {
display: block;
}
"""
with gr.Blocks(theme=theme, css=css) as interface:
gr.Markdown(
"""
# Fast Subtitle Maker
Inference by Groq API
If you are having API Rate Limit issues, you can retry later based on the [rate limits](https://console.groq.com/docs/rate-limits) or <a href="https://huggingface.co/spaces/Nick088/Fast-Subtitle-Maker?duplicate=true" style="display: inline-block;margin-top: .5em;margin-right: .25em;" target="_blank"> <img style="margin-bottom: 0em;display: inline;margin-top: -.25em;" src="https://img.shields.io/badge/-Duplicate%20Space-blue?labelColor=white&style=flat&logo=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAP5JREFUOE+lk7FqAkEURY+ltunEgFXS2sZGIbXfEPdLlnxJyDdYB62sbbUKpLbVNhyYFzbrrA74YJlh9r079973psed0cvUD4A+4HoCjsA85X0Dfn/RBLBgBDxnQPfAEJgBY+A9gALA4tcbamSzS4xq4FOQAJgCDwV2CPKV8tZAJcAjMMkUe1vX+U+SMhfAJEHasQIWmXNN3abzDwHUrgcRGmYcgKe0bxrblHEB4E/pndMazNpSZGcsZdBlYJcEL9Afo75molJyM2FxmPgmgPqlWNLGfwZGG6UiyEvLzHYDmoPkDDiNm9JR9uboiONcBXrpY1qmgs21x1QwyZcpvxt9NS09PlsPAAAAAElFTkSuQmCC&logoWidth=14" alt="Duplicate Space"></a> with <a href=https://console.groq.com/keys>your own API Key</a> </p>
Hugging Face Space by [Nick088](https://linktr.ee/Nick088)
<br> <a href="https://discord.gg/osai"> <img src="https://img.shields.io/discord/1198701940511617164?color=%23738ADB&label=Discord&style=for-the-badge" alt="Discord"> </a>
"""
)
with gr.Column():
# Input mode selection
input_mode = gr.Dropdown(choices=["Upload Video/Audio File", "Link Video/Audio"], value="Upload Video/Audio File", label="Input Mode")
# Input components
input_file = gr.File(label="Upload Audio/Video", file_types=[f".{ext}" for ext in ALLOWED_FILE_EXTENSIONS], visible=True)
link_input_info = gr.Markdown("Using yt-dlp to download Youtube Video Links + other platform's ones. Check [all supported sites](https://github.com/yt-dlp/yt-dlp/blob/master/supportedsites.md)!", visible=False)
link_input = gr.Textbox(label="Enter Video/Audio Link", visible=False)
# Model and options
model_choice_subtitles = gr.Dropdown(choices=["whisper-large-v3"], value="whisper-large-v3", label="Audio Speech Recogition (ASR) Model")
transcribe_prompt_subtitles = gr.Textbox(label="Prompt (Optional)", info="Specify any context or spelling corrections.")
with gr.Row():
language_subtitles = gr.Dropdown(choices=[(lang, code) for lang, code in LANGUAGE_CODES.items()], value="en", label="Language")
auto_detect_language_subtitles = gr.Checkbox(label="Auto Detect Language")
# Generate button
transcribe_button_subtitles = gr.Button("Generate Subtitles")
# Output and settings
include_video_option = gr.Checkbox(label="Include Video with Subtitles")
gr.Markdown("The SubText Rip (SRT) File, contains the subtitles, you can upload this to any video editing app for adding the subs to your video and also modify/stilyze them")
srt_output = gr.File(label="SRT Output File")
show_subtitle_settings = gr.Checkbox(label="Show Subtitle Video Settings", visible=False)
with gr.Row(visible=False) as subtitle_video_settings:
with gr.Column():
font_selection = gr.Radio(["Arial", "Custom Font File"], value="Arial", label="Font Selection", info="Select what font to use")
font_file = gr.File(label="Upload Font File (TTF or OTF)", file_types=[".ttf", ".otf"], visible=False)
font_color = gr.ColorPicker(label="Font Color", value="#FFFFFF")
font_size = gr.Slider(label="Font Size (in pixels)", minimum=10, maximum=60, value=24, step=1)
outline_thickness = gr.Slider(label="Outline Thickness", minimum=0, maximum=5, value=1, step=1)
outline_color = gr.ColorPicker(label="Outline Color", value="#000000")
video_output = gr.Video(label="Output Video with Subtitles", visible=False)
# Event bindings
# input mode
def toggle_input(mode):
if mode == "Upload Video/Audio File":
return gr.update(visible=True), gr.update(visible=False), gr.update(visible=False)
else:
return gr.update(visible=False), gr.update(visible=True), gr.update(visible=True)
input_mode.change(fn=toggle_input, inputs=[input_mode], outputs=[input_file, link_input_info, link_input])
# show video output
include_video_option.change(lambda include_video: gr.update(visible=include_video), inputs=[include_video_option], outputs=[video_output])
# show video output subs settings checkbox
include_video_option.change(lambda include_video: gr.update(visible=include_video), inputs=[include_video_option], outputs=[show_subtitle_settings])
# show video output subs settings
show_subtitle_settings.change(lambda show: gr.update(visible=show), inputs=[show_subtitle_settings], outputs=[subtitle_video_settings])
# uncheck show subtitle settings checkbox if include video is unchecked (to make the output subs settings not visible)
show_subtitle_settings.change(lambda show, include_video: gr.update(visible=show and include_video), inputs=[show_subtitle_settings, include_video_option], outputs=[show_subtitle_settings])
# show custom font file selection
font_selection.change(lambda font_selection: gr.update(visible=font_selection == "Custom Font File"), inputs=[font_selection], outputs=[font_file])
# Modified generate subtitles event
transcribe_button_subtitles.click(
fn=generate_subtitles,
inputs=[
input_mode,
input_file,
link_input,
transcribe_prompt_subtitles,
language_subtitles,
auto_detect_language_subtitles,
model_choice_subtitles,
include_video_option,
font_selection,
font_file,
font_color,
font_size,
outline_thickness,
outline_color,
],
outputs=[srt_output, video_output],
)
interface.launch(share=True) |