Depends on resolution and Image 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. 照片来源默认为JPG, 透明或硬边缘来源默认为PNG, 多页来源每页产生一张图像。
Frame extraction is fast — typically 20 to 30% of source duration on the standard pipeline. A 5-minute M4V → Image bundle finishes in about a minute regardless of frame count, because the bottleneck is the Image encoder, not the M4V demuxer.
Yes, subject to whatever licence governs the source M4V content. The format change adds no claim — we add no watermark and assert no licence over the Image output. Copyright tracks the source, not the converter. 自动选择目标意味着您可以得到一个文件, 该文件可以在任何地方打开, 无需先解释代码。