3GP → JPG

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Comment convertir 3GP à JPG

Étape 1 : Téléchargez votre 3GP Sélectionnez les fichiers à l'aide du bouton ci-dessus ou par glisser-déposer.

Étape 2 : Cliquez sur le bouton « Convertir » pour lancer la conversion.

Étape 3 : Téléchargez votre fichier converti JPG des dossiers

3GP à JPG FAQ sur la conversion

How do I extract frames from a 3GP video as JPG images?

Upload the 3GP 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 an individual JPG file and the full set is bundled into a ZIP archive for download.

At what resolution does each extracted JPG frame come out?

The same resolution as the 3GP video — a 1080p 3GP produces 1920×1080 JPG frames; a 4K 3GP produces 3840×2160 JPG frames. Use the resize utility after extraction if you want smaller thumbnails or social-media-sized crops.

Can I extract every single frame from 3GP as JPG?

Yes, but be careful with file count — a 30fps 1-minute 3GP produces 1,800 JPG frames. We pack them into a ZIP automatically. For longer clips, the "1 per second" option (60 frames) or specific timestamps gives a manageable result.

Will the extracted JPG images preserve the 3GP color grading?

Yes — colour is decoded with the matrix the source 3GP uses (BT.709 for HD, BT.2020 for 4K HDR). HDR sources are tone-mapped to SDR on extraction to JPG because most JPG formats (PNG, JPG) cannot store HDR pixel ranges natively.

What is the file size of one extracted JPG frame?

Depends on resolution and JPG codec. A 1080p PNG frame is typically 2 to 5 MB; a 1080p JPG at quality-85 is 200 to 500 KB; a 4K PNG is 6 to 15 MB. At the extreme, every-frame PNG extraction of a 10-minute 1080p 3GP produces ~50 GB total.

Does the extracted JPG retain EXIF camera metadata?

The 3GP 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 by capture order.

How long does frame extraction from 3GP to JPG take?

Frame extraction is fast — typically 20 to 30% of source duration on the standard pipeline. A 5-minute 3GP → JPG bundle finishes in about a minute regardless of frame count, because the bottleneck is the JPG encoder, not the 3GP demuxer.

Can I extract frames at specific timestamps in the 3GP?

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, scene reference shots, or thumbnailing long lectures.

Is my 3GP video private during frame extraction?

Yes — same privacy model as every conversion. Source video and extracted JPG frames are processed in isolated workers and deleted within minutes; no human review, no training corpus, no third-party access.

Why are my extracted JPG frames blurry?

Almost always motion blur baked into the 3GP source — the camera or subject was moving when the frame was captured. Pick timestamps from static scenes, or extract adjacent frames and choose the sharpest. The pipeline does not synthesize detail that was not there.

Can I extract one JPG per scene change rather than per timestamp?

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; ping us if it would unblock a specific workflow.

Can I use the extracted JPG frames commercially?

Yes, subject to whatever licence governs the source 3GP content. The format change adds no claim — we add no watermark and assert no licence over the JPG output. Copyright tracks the source, not the converter.

3GP

3GP est un format de conteneur multimédia développé pour les téléphones mobiles 3G. Il peut stocker des données audio et vidéo et est couramment utilisé pour la lecture vidéo mobile.

JPG

Les fichiers JPG utilisent une compression perdue optimisée pour les photographies, donnant de petites tailles de fichiers tout en conservant une résolution visuelle.