[FFmpeg-trac] #4773(avcodec:reopened): Multidimensional Quantization needs aeons

FFmpeg trac at avcodec.org
Sat Aug 15 01:41:59 CEST 2015


#4773: Multidimensional Quantization needs aeons
-------------------------------------+------------------------------------
             Reporter:  xtemp09      |                    Owner:
                 Type:  enhancement  |                   Status:  reopened
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  flac         |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+------------------------------------
Changes (by cehoyos):

 * status:  closed => reopened
 * reproduced:  0 => 1
 * type:  defect => enhancement
 * component:  undetermined => avcodec
 * priority:  normal => wish
 * version:  unspecified => git-master
 * resolution:  invalid =>


Comment:

 {{{
 $ time ffmpeg -f lavfi -i sine -multi_dim_quant 0 -t 1 -acodec flac -f
 null -
 ffmpeg version N-74414-g1bbb5ea Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.8 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      54. 30.100 / 54. 30.100
   libavcodec     56. 57.100 / 56. 57.100
   libavformat    56. 40.101 / 56. 40.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 33.100 /  5. 33.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  2.101 /  1.  2.101
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, lavfi, from 'sine':
   Duration: N/A, start: 0.000000, bitrate: 705 kb/s
     Stream #0:0: Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf56.40.101
     Stream #0:0: Audio: flac, 44100 Hz, mono, s16, 128 kb/s
     Metadata:
       encoder         : Lavc56.57.100 flac
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le (native) -> flac (native))
 Press [q] to stop, [?] for help
 size=N/A time=00:00:01.00 bitrate=N/A
 video:0kB audio:12kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown

 real    0m0.030s
 user    0m0.010s
 sys     0m0.018s
 }}}
 {{{
 $ time ffmpeg -f lavfi -i sine -multi_dim_quant 1 -t 1 -acodec flac -f
 null -
 ffmpeg version N-74414-g1bbb5ea Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.8 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      54. 30.100 / 54. 30.100
   libavcodec     56. 57.100 / 56. 57.100
   libavformat    56. 40.101 / 56. 40.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 33.100 /  5. 33.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  2.101 /  1.  2.101
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, lavfi, from 'sine':
   Duration: N/A, start: 0.000000, bitrate: 705 kb/s
     Stream #0:0: Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf56.40.101
     Stream #0:0: Audio: flac, 44100 Hz, mono, s16, 128 kb/s
     Metadata:
       encoder         : Lavc56.57.100 flac
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le (native) -> flac (native))
 Press [q] to stop, [?] for help
 size=N/A time=00:00:01.00 bitrate=N/A
 video:0kB audio:12kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown

 real    0m18.847s
 user    0m18.776s
 sys     0m0.057s
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4773#comment:2>
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