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.
polymorphism (where you can instantiate type variables with other
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羅斯在過去兩年保釋期間被困香港，目前已被還押候判，量刑聆訊定於7月22日進行。
울릉도 갔던 박단, 경북대병원 응급실 출근… “애써보겠다”