Trasformazzjoni FLV lil JPG

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FLV lil JPG FAQ dwar it-trasformazzjoni

How do I extract frames from a FLV video as JPG images?

Upload the FLV file and the converter exposes a frame-extraction picker: every Nth frame, frames at specific timestamps, or one frame per second. Each chosen frame is encoded as a separate JPG file and bundled as a ZIP for download.

At what resolution does the extracted JPG image come out?

Same resolution as the FLV video — a 1080p source produces 1920×1080 JPG frames; a 4K source produces 3840×2160 JPG frames. Resize after extraction if you need smaller thumbnails.

Can I extract every frame from a FLV file as JPG?

Yes, but be careful with file count — a 30fps 1-minute video produces 1,800 frames. We pack them into a ZIP archive automatically. For longer clips use the "1 per second" option (60 frames) or specific timestamps.

Will the JPG images preserve the FLV color grading?

Yes — colour is decoded with the same matrix the source FLV uses (BT.709 for HD, BT.2020 for 4K HDR). HDR sources are tone-mapped to SDR when extracting to JPG (PNG / JPG can't store HDR pixel ranges natively).

What is the file size of one extracted JPG frame?

Depends on resolution and codec choice. A 1080p PNG frame is 2-5 MB; a 1080p JPG quality-85 frame is 200-500 KB. Multiply by frame count to size the ZIP — at the extreme, every-frame extraction of a 10-min 1080p video at PNG is ~50 GB.

Does the extracted JPG keep camera EXIF metadata?

The FLV container does not store per-frame EXIF the way a still camera does, so the JPG files come out with empty EXIF. We embed a `creation_time` field pointing at the source frame timestamp so you can re-sort the bundle.

How long does frame extraction from FLV to JPG take?

Frame extraction is fast — typically 20-30% of source duration on the standard pipeline. A 5-minute FLV → JPG bundle finishes in about 1 minute regardless of frame count, because the bottleneck is the JPG encoder, not the demuxer.

Can I extract frames at specific timestamps in the FLV video?

Yes — the advanced option accepts a comma-separated list of timestamps (e.g. `00:01:23,00:05:00,00:10:42`) and produces one JPG file per timestamp. Useful for chapter thumbnails or scene reference shots.

Is my FLV video private during frame extraction?

Yes — same privacy model as every conversion. Source video and extracted frames are processed in isolated workers and deleted within minutes.

Why are my extracted JPG frames blurry?

Almost always motion blur from the source FLV (the camera was moving when the frame was captured). Try picking timestamps from static scenes, or extract several adjacent frames and choose the sharpest. The pipeline does not synthesize sharpness.

Does this tool support extracting one frame per scene change?

Not in the basic flow — use the "1 per second" option as an approximation, then visually pick scene-change frames. A dedicated scene-detection extractor is on the roadmap.

Can I use the extracted JPG frames commercially?

Yes, subject to whatever licence governs the source FLV content. The format change adds no claim — we add no watermark and claim no licence on the JPG output.