cat-shark
5688f38d62
- 默认 crop 由 [0,0.82,1,0.18] 调整为 [0,0.75,1,0.25]：字幕很少出现在 画面上半部分，扩大裁切高度提升 OCR 召回 - 同步更新 ocr-subtitle 工作流 DAG 与参数覆盖测试
68 lines
1.5 KiB
JSON
68 lines
1.5 KiB
JSON
{
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"id": "ocr-subtitle",
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"name": "字幕OCR提取",
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"description": "抽帧并 OCR 提取视频烧录字幕，经 LLM 过滤无意义内容后生成带时间轴的 SRT 基准数据。",
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"version": 7,
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"definition": {
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"name": "字幕OCR提取",
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"version": 7,
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"nodes": [
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{
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"id": "extract",
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"node_type": "frame-extract",
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"params": {
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"interval_seconds": 0.5,
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"crop": [
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0,
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0.75,
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1,
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0.25
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]
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},
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"inputs": {
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"video_uri": "input.video_uri"
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}
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},
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{
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"id": "ocr",
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"node_type": "subtitle-ocr",
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"params": {
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"prompt": "提取图像中的文字，不要描述图片中的内容",
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"pool_min_workers": 1,
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"pool_max_workers": 20
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},
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"inputs": {
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"frames_manifest": "extract.frames_manifest"
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}
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},
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{
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"id": "filter",
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"node_type": "llm-filter",
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"params": {
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"pool_min_workers": 1,
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"pool_max_workers": 20,
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"pool_fast_threshold": 1
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},
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"inputs": {
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"srt_uri": "ocr.srt_uri"
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}
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}
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],
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"edges": [
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{
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"from": "extract",
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"to": "ocr"
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},
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{
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"from": "ocr",
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"to": "filter"
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}
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],
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"entry_inputs": {
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"video_uri": "file"
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},
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"final_outputs": {
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"srt": "filter.srt_uri"
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}
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}
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} |