[FFmpeg-trac] #7624(avcodec:new): Improve colours in Dolby Vision samples

FFmpeg trac at avcodec.org
Tue Dec 18 00:16:56 EET 2018


#7624: Improve colours in Dolby Vision samples
---------------------------------------+---------------------------------
               Reporter:  cehoyos      |                  Owner:
                   Type:  enhancement  |                 Status:  new
               Priority:  wish         |              Component:  avcodec
                Version:  git-master   |               Keywords:  hevc
             Blocked By:               |               Blocking:
Reproduced by developer:  0            |  Analyzed by developer:  0
---------------------------------------+---------------------------------
 The Dolby Vision samples show strange colours:
 https://4kmedia.org/lg-amaze-dolby-vision-uhd-4k-demo/
 {{{
 $ ffmpeg -i LG\ Amaze\ Dolby\ Vision\ UHD\ 4K\ Demo.ts -qscale 2 out.avi
 ffmpeg version N-92729-ga1f0dd2 Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 6.4.0 (GCC)
   configuration: --enable-gpl --enable-libxml2 --enable-gnutls --enable-
 gmp --enable-version3 --enable-libx264
   libavutil      56. 24.101 / 56. 24.101
   libavcodec     58. 42.102 / 58. 42.102
   libavformat    58. 24.101 / 58. 24.101
   libavdevice    58.  6.101 / 58.  6.101
   libavfilter     7. 46.101 /  7. 46.101
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
   libpostproc    55.  4.100 / 55.  4.100
 [hevc @ 0x283a800] Skipping NAL unit 62
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'LG Amaze Dolby Vision UHD 4K
 Demo.ts':
   Metadata:
     major_brand     : mp42
     minor_version   : 1
     compatible_brands: mp42dby1isom
     creation_time   : 2017-04-13T20:09:18.000000Z
   Duration: 00:00:56.20, start: 0.000000, bitrate: 28362 kb/s
     Stream #0:0(und): Video: hevc (Main 10) (dvhe / 0x65687664),
 yuv420p10le(tv), 3840x2160 [SAR 1:1 DAR 16:9], 27713 kb/s, 60 fps, 60 tbr,
 60k tbn, 60 tbc (default)
     Metadata:
       creation_time   : 2017-04-13T20:09:18.000000Z
       handler_name    : video handler
       encoder         : DOVI Coding
     Stream #0:1(und): Audio: eac3 (ec-3 / 0x332D6365), 48000 Hz,
 5.1(side), fltp, 640 kb/s (default)
     Metadata:
       creation_time   : 2017-04-13T20:09:18.000000Z
       handler_name    : sound handler
     Side data:
       audio service type: main
 Please use -q:a or -q:v, -qscale is ambiguous
 Stream mapping:
   Stream #0:0 -> #0:0 (hevc (native) -> mpeg4 (native))
   Stream #0:1 -> #0:1 (eac3 (native) -> ac3 (native))
 Press [q] to stop, [?] for help
 [hevc @ 0x286df00] Skipping NAL unit 62
 [hevc @ 0x2868100] Skipping NAL unit 62
 [hevc @ 0x287d0c0] Skipping NAL unit 62
 [hevc @ 0x28cdf80] Skipping NAL unit 62
 [hevc @ 0x28de740] Skipping NAL unit 62
 [hevc @ 0x2945bc0] Skipping NAL unit 62
 [hevc @ 0x29562c0] Skipping NAL unit 62
 [hevc @ 0x2977440] Skipping NAL unit 62
 [hevc @ 0x2966ac0] Skipping NAL unit 62
 [hevc @ 0x286df00] Skipping NAL unit 62
 [hevc @ 0x2868100] Skipping NAL unit 62
 Output #0, avi, to 'out.avi':
   Metadata:
     major_brand     : mp42
     minor_version   : 1
     compatible_brands: mp42dby1isom
     ISFT            : Lavf58.24.101
     Stream #0:0(und): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 3840x2160
 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 60 fps, 60 tbn, 60 tbc (default)
     Metadata:
       creation_time   : 2017-04-13T20:09:18.000000Z
       handler_name    : video handler
       encoder         : Lavc58.42.102 mpeg4
     Side data:
       cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
     Stream #0:1(und): Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz,
 5.1(side), fltp, 448 kb/s (default)
     Metadata:
       creation_time   : 2017-04-13T20:09:18.000000Z
       handler_name    : sound handler
       encoder         : Lavc58.42.102 ac3
     Side data:
       audio service type: main
 [hevc @ 0x287d0c0] Skipping NAL unit 62
 [hevc @ 0x28cdf80] Skipping NAL unit 62

 ...

 [hevc @ 0x28de740] Skipping NAL unit 62
 [hevc @ 0x2945bc0] Skipping NAL unit 62
 frame= 3372 fps= 31 q=2.0 Lsize= 1769927kB time=00:00:56.20
 bitrate=257993.6kbits/s speed=0.51x
 video:1766724kB audio:3073kB subtitle:0kB other streams:0kB global
 headers:0kB muxing overhead: 0.007307%
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7624>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list