得唔得閒試埋依條
http://www.elecard.com/assets/files/other/clips/bbb_1080p_c.ts

CPU: AMD PII 925
OS: Linux
Player: Mplayer nightly
Decoder: ffmpeg nightly

CPU usage: 90% ~ 140% (i.e. 22% ~ 35% in Windows)

快照28.jpg
2014-1-26 19:54

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宜家有咩 encoder 可以壓 h265?
紅豆湯圓 發表於 2014-1-26 20:13


Divx and x265

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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

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