本帖最後由 untvb 於 2014-1-27 15:04 編輯
見大家咁有雅興,我將以前唔知邊道嚟嗰條 H264 嘅 4k 鴨仔起風片轉左做 H265
http://goo.gl/xeTME9
注意,我覺得 h265 encoder 嘅技術未係咁成熟,所以段片係俾大家玩吓,同 h264 眾多 encoder/decoder 無乜比較性,因為 h264 相關嘅嘢都差唔多 well-optimized.
ffprobe result:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'DuckDuck_x265_test01.mp4':
Metadata:
major_brand : iso4
minor_version : 1
compatible_brands: iso4hvc1
creation_time : 2014-01-27 06:51:03
Duration: 00:00:16.68, start: 0.066733, bitrate: 21475 kb/s
Stream #0:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv), 3840x2160, 21472 kbn, 30k tbc (default)
Metadata:
creation_time : 2014-01-27 06:51:03
handler_name : hvc@GPAC0.5.1-DEV-rev5004M
conversion command:
mplayer -nosound -speed 0.05 -lavdopts threads=4 -vo yuv4mpeg:file=>(x265 --preset medium --tune ssim --y4m --output _tmp_video.hvc - 2>/dev/null) "Ducks.Take.Off.2160p.QHD.CRF25.x264-CtrlHD.mkv"
MP4Box -add _tmp_video.hvc -fps 29.970 -new DuckDuck_x265_test01.mp4 |