By default, ffmpeg compresses the images quite a bit. It was enough that I could notice a quality difference when I put a paused frame of the video side-by-side with an extracted image. We can force ffmpeg to improve the quality with q:v (number). A smaller number here produces a higher quality image at the expense of file size and processing time. I’ve settled on a value of 3, but feel free to play around with this to get the quality or file sizes you want.
更重要的是，革命叙事本身已经完全制度化。反对以色列、抗衡美国并非单纯的外交立场抑或实现伊斯兰革命目标的手段，而是宪政结构与权力组织的合法性来源。伊斯兰革命卫队的地位、资源分配格局、意识形态动员体系，都建立在“持续对抗”的框架之上。
，详情可参考Safew下载
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최민희 의원, ‘재명이네 마을’서 영구 강퇴 당했다