Builder ffmpeg-solaris10-sparc Build #14147

Results:

Failed shell_2 shell_3 shell_4 shell_5

SourceStamp:

BuildSlave:

Reason:

The SingleBranchScheduler scheduler named 'schedule-ffmpeg-solaris10-sparc' triggered this build

Steps and Logfiles:

1. git update ( 17 secs )
   1. stdio
2. shell 'gsed -i ...' ( 1 secs )
   1. stdio
3. shell_1 'gsed -i ...' ( 0 secs )
   1. stdio
4. shell_2 'gsed -i ...' failed ( 1 secs )
   1. stdio
5. shell_3 './configure --samples="../../../ffmpeg/fate-suite" ...' failed ( 12 secs )
   1. stdio
   2. config.log
6. shell_4 'gmake fate-rsync' failed ( 0 secs )
   1. stdio
7. shell_5 '../../../ffmpeg/fate.sh ../../../ffmpeg/fate_config.sh' failed ( 0 secs )
   1. stdio
   2. configure.log
   3. compile.log
   4. test.log

Build Properties:

Forced Build Properties:

Responsible Users:

1. Ayoub Nabil

   237098474+ayoubnabilohnoyoudont@users.noreply.github.com

Timing:

All Changes:

:

1. Change #278721

   Category	ffmpeg
   Changed by	Ayoub Nabil <237098474+ayoubnabilohnoyoudont@users.noreply.github.com>
   Changed at	Wed 19 Aug 2026 17:29:46
   Repository	https://git.ffmpeg.org/ffmpeg.git
   Project	ffmpeg
   Branch	master
   Revision	2312ae4d10e10e315d12797b78155dbc0bc56cea

   Comments

   avcodec/ac3dec: avoid coefficient truncation in float decoder
   The float decoder dequantized spectral coefficients into an int32_t
   buffer using mantissa >> exponent. This discarded the fractional part
   before conversion to float and substantially raised the dither noise
   floor for low-level coefficients.
   
   Store decoded coefficients as INTFLOAT and apply 2^-exponent directly
   in the floating-point path. Keep the fixed-point decoder unchanged, and
   perform coupling, rematrixing and final scaling in the native type.
   
   This also removes the now-unused fmtconvert dependency. Add a synthetic
   FATE test that measures the corrected dither level. Existing PCM
   references remain within one sample except fate-ac3-2.0, whose measured
   maximum difference is two samples.
   
   Fixes #23684.

   Changed files

   • configure
   • libavcodec/ac3dec.c
   • libavcodec/ac3dec.h
   • tests/fate/ac3.mak