libx265 encode test, how low can you go for 720P

testHere is a really quick encoding test showing some of the outputs using libx265, by encoding test means it is certainly not an accurate representation of best quality comparison but what is does show is not too bad playback at 187kbps video (which is very low 720P!)

Some details of the source (some nature footage off youtube):

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Planet Earth - Amazing nature scenery (1080p HD)-6v2L2UGZJAM.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2014-04-25 01:07:55
Duration: 00:13:28.45, start: 0.000000, bitrate: 2292 kb/s

Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2097 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 192 kb/s (default)
    Metadata:
      creation_time   : 2014-04-25 01:09:08
      handler_name    : IsoMedia File Produced by Google, 5-11-2011

And the result:

Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf56.3.100
  Duration: 00:13:28.50, start: 0.046440, bitrate: 324 kb/s
    Stream #0:0(und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv), 1280x720 [SAR 1:1 DAR 16:9], 187 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 29.97 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler

And to get the idea I have joined together the source and the result here which you can see a quick demo, the one on the left is the source and the right is the result. Now the one on the right is obviously not as good but you are comparing 2000kbps with <200kbps so it is not too bad.

 

 

 

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