240 lines
7.1 KiB
Python
240 lines
7.1 KiB
Python
# pip install scenedetect opencv-python -i https://pypi.tuna.tsinghua.edu.cn/simple
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from scenedetect.video_manager import VideoManager
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from scenedetect.scene_manager import SceneManager
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from scenedetect.stats_manager import StatsManager
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from scenedetect.detectors.content_detector import ContentDetector
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import os
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import sys
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import subprocess
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from huggingface_hub import hf_hub_download
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from faster_whisper import WhisperModel
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import public_tools
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from pathlib import Path
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# 获取智能画面分割的时间或者秒数
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def find_scenes(video_path, sensitivity):
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print(
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"正在计算分镜数据" + "sensitivity：" + str(sensitivity) + "path : " + video_path
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)
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sys.stdout.flush()
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video_manager = VideoManager([video_path])
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stats_manager = StatsManager()
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scene_manager = SceneManager(stats_manager)
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# 使用contect-detector
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scene_manager.add_detector(ContentDetector(threshold=float(sensitivity)))
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shijian_list = []
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try:
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video_manager.set_downscale_factor()
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video_manager.start()
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scene_manager.detect_scenes(frame_source=video_manager)
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scene_list = scene_manager.get_scene_list()
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print("分镜数据列表：")
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sys.stdout.flush()
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for i, scene in enumerate(scene_list):
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shijian_list.append([scene[0].get_timecode(), scene[1].get_timecode()])
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print(
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"Scene %2d: Start %s / Frame %d, End %s / Frame %d"
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% (
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i + 1,
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scene[0].get_timecode(),
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scene[0].get_frames(),
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scene[1].get_timecode(),
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scene[1].get_frames(),
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)
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)
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sys.stdout.flush()
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finally:
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video_manager.release()
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return shijian_list
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# 如果不存在就创建
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def createDir(file_dir):
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# 如果不存在文件夹，就创建
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if not os.path.isdir(file_dir):
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os.mkdir(file_dir)
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# 切分一个视频
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def ClipVideo(video_path, out_folder, image_out_folder, sensitivity, gpu_type):
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shijian_list = find_scenes(video_path, sensitivity) # 多组时间列表
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shijian_list_len = len(shijian_list)
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print("总共有%s个场景" % str(shijian_list_len))
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sys.stdout.flush()
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video_list = []
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for i in range(0, shijian_list_len):
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start_time_str = shijian_list[i][0]
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end_time_str = shijian_list[i][1]
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print("开始输出第" + str(i + 1) + "个分镜")
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video_name = "{:05d}".format(i + 1)
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out_video_file = os.path.join(out_folder, video_name + ".mp4")
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sys.stdout.flush()
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video_list.append(
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{
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"start_time_str": start_time_str,
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"end_time_str": end_time_str,
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"out_video_file": out_video_file,
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"video_name": video_name,
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}
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)
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# 使用 ffmpeg 裁剪视频
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command = []
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command.append("ffmpeg")
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command.append("-i")
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command.append(video_path)
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command.append("-ss")
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command.append(start_time_str)
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command.append("-to")
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command.append(end_time_str)
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command.append("-c:v")
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if gpu_type == "NVIDIA":
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command.append("h264_nvenc")
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elif gpu_type == "AMD":
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command.append("h264_vaapi")
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else:
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command.append("libx264")
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command.append("-preset")
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command.append("fast")
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command.append("-c:a")
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command.append("copy")
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command.append(out_video_file)
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command.append("-loglevel")
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command.append("error")
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subprocess.run(
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command,
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check=True,
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stderr=subprocess.PIPE,
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)
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print("分镜输出完成。开始抽帧")
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sys.stdout.flush()
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for vi in video_list:
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h, m, s = vi["start_time_str"].split(":")
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start_seconds = int(h) * 3600 + int(m) * 60 + float(s)
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h, m, s = vi["end_time_str"].split(":")
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end_seconds = int(h) * 3600 + int(m) * 60 + float(s)
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print("正在抽帧：" + vi["video_name"])
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sys.stdout.flush()
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subprocess.run(
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[
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"ffmpeg",
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"-ss",
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str((end_seconds - start_seconds) / 2),
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"-i",
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vi["out_video_file"],
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"-frames:v",
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"1",
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os.path.join(image_out_folder, vi["video_name"] + ".png"),
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"-loglevel",
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"error",
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]
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)
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print("抽帧完成，开始识别文案")
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sys.stdout.flush()
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return video_list
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def SplitAudio(video_out_folder, video_list):
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# ffmpeg -i input_file.mp4 -vn -ab 128k output_file.mp3
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print("正在分离音频!!")
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mp3_list = []
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sys.stdout.flush()
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for v in video_list:
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mp3_path = os.path.join(video_out_folder, v["video_name"] + ".mp3")
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mp3_list.append(mp3_path)
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subprocess.run(
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[
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"ffmpeg",
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"-i",
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v["out_video_file"],
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"-vn",
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"-ab",
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"128k",
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mp3_path,
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"-loglevel",
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"error",
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],
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check=True,
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)
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return mp3_list
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def GetText(out_folder, mp3_list):
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text = []
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# 先获取模型
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print("正在下载或加载模型")
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sys.stdout.flush()
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model_path = Path(
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hf_hub_download(repo_id="Systran/faster-whisper-large-v3", filename="model.bin")
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)
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hf_hub_download(
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repo_id="Systran/faster-whisper-large-v3",
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filename="config.json",
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)
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hf_hub_download(
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repo_id="Systran/faster-whisper-large-v3",
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filename="preprocessor_config.json",
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)
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hf_hub_download(
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repo_id="Systran/faster-whisper-large-v3",
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filename="tokenizer.json",
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)
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hf_hub_download(
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repo_id="Systran/faster-whisper-large-v3",
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filename="vocabulary.json",
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)
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model = WhisperModel(
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model_size_or_path=os.path.dirname(model_path),
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device="auto",
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local_files_only=True,
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)
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print("模型加载成功，开始识别")
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sys.stdout.flush()
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for mp in mp3_list:
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segments, info = model.transcribe(
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mp,
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beam_size=5,
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language="zh",
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vad_filter=True,
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vad_parameters=dict(min_silence_duration_ms=1000),
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)
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tmp_text = ""
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for segment in segments:
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tmp_text += segment.text + "。"
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print(mp + "识别完成")
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sys.stdout.flush()
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text.append(tmp_text)
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# 数据写出
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print("文本全部识别成功，正在写出")
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sys.stdout.flush()
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tools = public_tools.PublicTools()
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tools.write_to_file(text, os.path.join(out_folder, "文案.txt"))
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print("写出完成")
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sys.stdout.flush()
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def init(video_path, video_out_folder, image_out_folder, sensitivity, gpu_type):
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v_l = ClipVideo(
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video_path, video_out_folder, image_out_folder, sensitivity, gpu_type
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)
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# 开始分离音频
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m_l = SplitAudio(video_out_folder, v_l)
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# 开始识别字幕
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GetText(os.path.dirname(video_out_folder), m_l)
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