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Install
$ agentstack add skill-yehyakin-hermes-skills-ecommerce-video-clip-to-shortform ✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
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电商直播视频 → 带货切片工作流
背景
从电商直播长视频(60-120分钟)中提取 15-30秒 带货短切片,用于短视频平台发布。
完整工作流
第一步:Whisper 转写
whisper /path/to/video.mp4 \
--model base \
--language zh \
--output_format srt \
--output_dir /tmp/whisper_output
第二步:从 SRT 提取爆点时间
keywords = ['138', '上车', '限量', '350克', '埃及', '万针', '不变形', '扣一']
# 找含有关键词的字幕行,输出:时间戳、关键词、上下文各2句
第三步:切精剪片段(FFmpeg)
ffmpeg -y -ss 00:08:09 -i 原始视频.mp4 -t 20 \
-c:v libx264 -crf 23 -preset fast \
-c:a aac -b:a 128k \
-movflags +faststart 输出.mp4
第四步:加字幕包装(FFmpeg 无 drawtext 时)
MacOS 打包环境通常没有 drawtext,用 PIL 生成叠加图:
from PIL import Image, ImageDraw, ImageFont
W, H = 1080, 1920 # 竖屏 9:16
def make_overlay(filename, line1, color1, size1, line2, color2, size2):
img = Image.new('RGBA', (W, H), (0, 0, 0, 0))
draw = ImageDraw.Draw(img)
font_paths = [
'/Users/yehya/Library/Fonts/27-华康饰艺体W7-GB.ttc',
'/System/Library/Fonts/Supplemental/Arial Unicode.ttf',
]
font1, font2 = None, None
for fp in font_paths:
try:
font1 = ImageFont.truetype(fp, size1)
font2 = ImageFont.truetype(fp, size2)
break
except: continue
# 大字 + 黑色描边
bbox1 = draw.textbbox((0, 0), line1, font=font1)
tw1, th1 = bbox1[2]-bbox1[0], bbox1[3]-bbox1[1]
x1, y1 = (W-tw1)//2, int(H*0.10)
for dx,dy in [(-2,-2),(-2,2),(2,-2),(2,2),(-2,0),(2,0),(0,-2),(0,2)]:
draw.text((x1+dx,y1+dy), line1, fill=(0,0,0,255), font=font1)
draw.text((x1,y1), line1, fill=color1, font=font1)
# 副标题
bbox2 = draw.textbbox((0, 0), line2, font=font2)
tw2, th2 = bbox2[2]-bbox2[0], bbox2[3]-bbox2[1]
x2, y2 = (W-tw2)//2, y1+th1+20
draw.text((x2,y2), line2, fill=color2, font=font2)
img.save(filename, 'PNG')
第五步:FFmpeg 叠加字幕图
ffmpeg -y -ss 00:08:08 -i 原始视频.mp4 \
-i /tmp/overlay_A.png -t 5 \
-filter_complex "[0:v][1:v]overlay=0:0:format=yuv420[out]" \
-map "[out]" -c:v libx264 -crf 23 -preset fast \
-c:a aac -b:a 128k -movflags +faststart 输出.mp4
爆点关键词参考(服装电商)
| 类别 | 关键词 | |------|--------| | 价格 | 138、到手、折扣、上车、链接 | | 品质 | 350克、埃及棉、80支、不变形、万针刺绣 | | 催单 | 扣一、限量、错过不再、倒计时 |
关键教训
- AutoClip 等 AI 切片工具 → 识别完整话题段(3-10分钟),不是最终切片,需人工再切
- SRT 字幕是精准切片的依据:按句/按意切,不按时长机械切
- 竖屏 9:16(1080×1920) 是直播标准,剪辑时注意尺寸匹配
- 直播画面冲击力弱 → 需要字幕包装增强,单独切片段不够爆
- FFmpeg drawtext 不一定可用 → PIL 叠加图是跨平台备用方案
- 字幕位置:竖屏视频,文字放顶部 10-15% 区域,避免遮挡主播/产品主体
- 短视频黄金3秒:开头3秒必须用最强爆点(价格揭示 > 品质背书 > 产品特写)
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: yehyakin
- Source: yehyakin/hermes-skills
- License: MIT
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.