yhbcode000/paper-share-skills/paper-slides-to-video

Paper Slides to Video

The public entrypoint is:

<SKILLS_DIR>/paper-slides-to-video/scripts/slides_to_video.py

Run it with the package environment:

uv run --project <SKILLS_DIR>/paper-slides-to-video python <SKILLS_DIR>/paper-slides-to-video/scripts/slides_to_video.py <subcommand>

Exact CLI

• render PDF FRAME_DIR [--dpi 200]
• plan TEX
• narrations FRAME_DIR TEX --annotated-tex ANNOTATED_TEX
• tts FRAME_DIR [--lang zh]
• assemble FRAME_DIR OUTPUT [--pad-sec 0.5] [--speed 1.25]
• cover FIRST_FRAME OUTPUT
• metadata TEX COVER OUTPUT
• full PAPER_DIR --annotated-tex ANNOTATED_TEX

Required full workflow

1. Compile slides-beamer/main.pdf before invoking this package.
2. Copy slides-beamer/main.tex to video/main_with_narration.tex and add one nonempty % NARRATION: annotation for every rendered physical page. This per-physical-page contract is what keeps landscape and portrait renders in sync: both orientations are assembled from the same PDF pages, so narration/audio cardinality gates apply equally to each orientation.
3. Run full with the annotated TeX path.

uv run --project <SKILLS_DIR>/paper-slides-to-video python <SKILLS_DIR>/paper-slides-to-video/scripts/slides_to_video.py full "<PAPER_DIR>" --annotated-tex "<PAPER_DIR>/video/main_with_narration.tex"

full removes any stale narrated output before processing. It requires exact PNG/TXT/MP3 cardinality, nonempty narration and audio, probeable positive audio durations, and an assembled MP4 containing both video and audio streams. A missing narration or MP3 exits nonzero and cannot leave a narrated result.

Tool discovery

• PDFTOPPM or POPPLER_DIR (directory containing pdftoppm), then PATH
• FFMPEG, then PATH
• FFPROBE, then PATH
• EDGE_TTS_BIN, then PATH

Silence is never implicit. Programmatic callers may create a deliberately silent page only by calling encode_slide(..., require_audio=False). The public default is require_audio=True.

Outputs are written under <PAPER_DIR>/video/: video_frames/, <paper>_narrated.mp4, cover.png, frames_data.json, narrations.json, and video_meta.json.

Related skills

• skill://batch-papers-single-omp-full-pipeline
• skill://batch-slides-to-video
• skill://blog-to-bilibili
• skill://edge-tts-retry-video-driver
• skill://index-tts-fallback