[FFmpeg-trac] #10736(avfilter:new): drmeter: No data, dynamic range not meassurable

[FFmpeg]

#10736: drmeter: No data, dynamic range not meassurable
----------------------------------+----------------------------------
             Reporter:  hsn       |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  avfilter  |                  Version:  6.0
             Keywords:  drmeter   |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
----------------------------------+----------------------------------
 drmeter doesn't process any input data. In drmeter source it looks it
 operates only on floating point input so I added osf=flt but it didn't
 have any effect.

 How to reproduce:
 {{{
 % ffmpeg -hide_banner -i trans4-30k-scale-3-dither.wav -af
 aresample=osf=flt:out_chlayout=3,drmeter -f null -

 [aist#0:0/pcm_s16le @ 0000019e05dd3d40] Guessed Channel Layout: stereo
 Input #0, wav, from 'trans4-30k-scale-3-dither.wav':
   Metadata:
     encoder         : Lavf60.16.100
   Duration: 00:00:45.00, bitrate: 1024 kb/s
   Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 32000 Hz, 2
 channels, s16, 1024 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf60.16.100
   Stream #0:0: Audio: pcm_s16le, 32000 Hz, stereo, s16, 1024 kb/s
     Metadata:
       encoder         : Lavc60.31.102 pcm_s16le
 [out#0/null @ 0000019e05dd3a00] video:0kB audio:5625kB subtitle:0kB other
 streams:0kB global headers:0kB muxing overhead: unknown
 size=N/A time=00:00:44.99 bitrate=N/A speed= 452x
 [Parsed_drmeter_1 @ 0000019e061f5100] No data, dynamic range not
 meassurable

 ffmpeg version 6.1-full
 built with gcc 12.2.0 (Rev10, Built by MSYS2 project)

 I have different input file which works okay, it has different bitrate:
 ffmpeg -hide_banner -i trans4.wav -af
 aresample=osf=flt:out_chlayout=3,drmeter -f null -
 [aist#0:0/pcm_s16le @ 0000029e6ef96dc0] Guessed Channel Layout: stereo
 Input #0, wav, from 'trans4.wav':
   Metadata:
     encoder         : Lavf60.3.100
   Duration: 00:00:45.00, bitrate: 1411 kb/s
   Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2
 channels, s16, 1411 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf60.16.100
   Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
     Metadata:
       encoder         : Lavc60.31.102 pcm_s16le
 [out#0/null @ 0000029e6ef83f40] video:0kB audio:7752kB subtitle:0kB other
 streams:0kB global headers:0kB muxing overhead: unknown
 size=N/A time=00:00:44.97 bitrate=N/A speed= 352x
 [Parsed_drmeter_1 @ 0000029e6efa54c0] Channel 1: DR: 6.58045
 [Parsed_drmeter_1 @ 0000029e6efa54c0] Channel 2: DR: 6.99048
 [Parsed_drmeter_1 @ 0000029e6efa54c0] Overall DR: 6.78547
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10736>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker