At what resolution does each extracted JPG frame come out?
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The same resolution as the M4V video — a 1080p M4V produces 1920×1080 JPG frames; a 4K M4V produces 3840×2160 JPG frames. Use the resize utility after extraction if you want smaller thumbnails or social-media-sized crops.
Will the extracted JPG images preserve the M4V color grading?
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יָא — פֿאַרב איז אָפּגעקאָדירט מיטן מאַטריקס װאָס דער מקור M4V ניצט (BT.709 פֿאַר HD, BT.2020 פֿאַר 4K HDR). HDR־קאָרדינאטן זײַנען צונויפֿגעפֿירט צו SDR װען אױסגעפֿירט צו JPG װײַל די אײגסטע פֿאָרמאַטירונגען (PNG, JPG) קענען ניט אױסשטעלן HDR־פֿײַל־שטײער
What is the file size of one extracted JPG frame?
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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 M4V produces ~50 GB total.
צי דער אױסגעװײנטלעכער JPG װעט באַהאַלטן EXIF קאַמערא־מעטאַדאַטן?
Almost always motion blur baked into the M4V 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.
