Compression of h.262 (TV-TS-Stream e.g.: RTL ...) to h.265 (libx265), crf 18, additional I use
-vf yadif,nlmeans="1.4:7:5:3:3"
1. yadif if interlace then to 25p (in the example below not used)
2. nlmeans to reduce noise
Video: mpeg2video yuv420p(tv, progressive), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn
My intention is to compress the video to half the size, but the results, checked with vivictpp are not acceptable. The less quality after compression will be clearly seen.
On the other hand, TV-TS-Stream HD 720p (h,264), compressed to 1/4 via libx265 (crf 15 - 18), also checked with vivictpp, no difference could be seen, subjective same quality.
No idea what to do, to compress h.262 videos. If I reduce crf, the reduced size of the compressed video is not acceptable (200-300MB) in respect to loss of quality.
-vf yadif,nlmeans="1.4:7:5:3:3"
1. yadif if interlace then to 25p (in the example below not used)
2. nlmeans to reduce noise
Video: mpeg2video yuv420p(tv, progressive), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn
My intention is to compress the video to half the size, but the results, checked with vivictpp are not acceptable. The less quality after compression will be clearly seen.
On the other hand, TV-TS-Stream HD 720p (h,264), compressed to 1/4 via libx265 (crf 15 - 18), also checked with vivictpp, no difference could be seen, subjective same quality.
No idea what to do, to compress h.262 videos. If I reduce crf, the reduced size of the compressed video is not acceptable (200-300MB) in respect to loss of quality.