[FFmpeg-trac] #4246(avcodec:new): Lossless encoding with VP9 doesn't work

FFmpeg trac at avcodec.org
Sat Jan 10 15:37:10 CET 2015


#4246: Lossless encoding with VP9 doesn't work
------------------------------------+--------------------------------------
             Reporter:  SocDemScum  |                     Type:  defect
               Status:  new         |                 Priority:  normal
            Component:  avcodec     |                  Version:  git-master
             Keywords:  libvpx      |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+--------------------------------------
 ffmpeg outputs:
 {{{
 ffmpeg version N-68994-g4df01d5 Copyright (c) 2000-2015 the FFmpeg
 developers
   built on Jan  9 2015 22:13:35 with gcc 4.9.2 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-av
 isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
 --enab
 le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-
 libcaca --
 enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc
 --enable-lib
 modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-
 libopencore-amrw
 b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-
 libschroedinge
 r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
 libtwolame --en
 able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-
 libvorbis
  --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
 --enable-
 libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink
 --enab
 le-zlib
   libavutil      54. 16.100 / 54. 16.100
   libavcodec     56. 20.100 / 56. 20.100
   libavformat    56. 18.100 / 56. 18.100
   libavdevice    56.  3.100 / 56.  3.100
   libavfilter     5.  7.100 /  5.  7.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: isommp42
     creation_time   : 2014-11-29 01:06:17
   Duration: 00:03:38.85, start: 0.000000, bitrate: 1959 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1280x534
 [SAR 1:1 DAR 640:267], 1765 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc
 (defa
 ult)
     Metadata:
       handler_name    : VideoHandler
     Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
 stereo, flt
 p, 191 kb/s (default)
     Metadata:
       creation_time   : 2014-11-29 01:06:20
       handler_name    : IsoMedia File Produced by Google, 5-11-2011
 File 'Stand.mkv' already exists. Overwrite ? [y/N] y
 [libvpx-vp9 @ 0000000004ac00a0] v1.3.0
 [libvpx-vp9 @ 0000000004ac00a0] Failed to set VP9E_SET_LOSSLESS codec
 control: I
 nvalid parameter
 [libvpx-vp9 @ 0000000004ac00a0]   Additional information: rc_max_quantizer
 out o
 f range [..0]
 [flac @ 000000000449c3a0] encoding as 24 bits-per-sample
 Output #0, matroska, to 'Stand.mkv':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: isommp42
     encoder         : Lavf56.18.100
     Stream #0:0(und): Video: vp9 (libvpx-vp9) (VP90 / 0x30395056),
 yuv420p, 1280
 x534 [SAR 1:1 DAR 640:267], q=-1--1, 200 kb/s, 23.98 fps, 1k tbn, 23.98
 tbc (def
 ault)
     Metadata:
       handler_name    : VideoHandler
       encoder         : Lavc56.20.100 libvpx-vp9
     Stream #0:1(und): Audio: flac ([172][241][0][0] / 0xF1AC), 44100 Hz,
 stereo,
  s32 (24 bit), 128 kb/s (default)
     Metadata:
       creation_time   : 2014-11-29 01:06:20
       handler_name    : IsoMedia File Produced by Google, 5-11-2011
       encoder         : Lavc56.20.100 flac
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> vp9 (libvpx-vp9))
   Stream #0:1 -> #0:1 (aac (native) -> flac (native))
 }}}
 when trying to losslessly encode using libvpx-vp9. It says that the
 rc_max_quantizer is out of range.

 Command used:
 {{{
 ffmpeg -ss 135.927458197 -t 6.798458327 -i input.mp4 -vcodec libvpx-vp9
 -deadline best -profile:v 0 -lossless 1 -g 162 -keyint_min 1 -sc_threshold
 50 -frame-parallel 1 -threads 1 -acodec flac -compression_level 8 -threads
 1 Stand.mkv
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4246>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


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