Builder ffmpegsos-solaris10-i386 Build #14273

Results:

Failed

SourceStamp:

BuildSlave:

Reason:

The SingleBranchScheduler scheduler named 'schedule-ffmpegsos-solaris10-i386' triggered this build

Steps and Logfiles:

1. git updating ( 6 secs )
   1. stdio
2. shell  
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Build Properties:

Forced Build Properties:

Responsible Users:

1. Niklas Haas

   gitohnoyoudont@haasn.dev

Timing:

All Changes:

:

1. Change #281873

   Category	ffmpeg
   Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
   Changed at	Tue 15 Sep 2026 15:12:45
   Repository	https://git.ffmpeg.org/ffmpeg.git
   Project	ffmpeg
   Branch	master
   Revision	17e6ed9dc0106fbf837bda5d675fae22360e6c3e

   Comments

   avfilter/vf_colordetectdsp: rewrite C implementations as macros
   In the process, also add the range assumption and cast to the detect_alpha
   intermediates, which seems to help codegen:
   
   checkasm:
    - CPU: AMD Ryzen 9 9950X3D 16-Core Processor (00B40F40)
    - Timing source: x86 (rdtsc)
    - Bench duration: 100000 µs per function (442374016 cycles)
    - Random seed: 2809724650
   
   Benchmark results: (old)
     name                                  cycles (vs ref)
     detect_alpha_8_full_c:                7582.7
     detect_alpha_8_full_off_c:            7587.4
     detect_alpha_8_limited_c:            13306.7
     detect_alpha_16_full_c:               3482.5
     detect_alpha_16_full_off_c:           3480.4
     detect_alpha_16_limited_c:            8055.1
     detect_range_8_c:                     1271.4
     detect_range_16_c:                    1213.0
   
   Benchmark results: (new)
     name                                  cycles (vs ref)
     detect_alpha_8_full_c:                4716.6
     detect_alpha_8_full_off_c:            4715.4
     detect_alpha_8_limited_c:             7943.2
     detect_alpha_16_full_c:               2920.2
     detect_alpha_16_full_off_c:           2918.9
     detect_alpha_16_limited_c:            9952.0
     detect_range_8_c:                     1253.1
     detect_range_16_c:                    1194.8
   
   The ~20% slowdown for detect_alpha_16_limited_c is because the previous
   version of the code short-circuited this condition, which is faster when
   the compiler is not able to vectorize the loop body and falls back to a pure
   scalar loop.
   
   However, I don't think optimizing around this is necessary as it's a pure
   compiler optimization question. In particular, it actually _prevents_ better
   compilers from being able to vectorize this in the future. (As an example,
   doing the same short-circuiting for 8-bit would be a 2x regression on my end)
   
   People running into performance issues should just use the SIMD versions.
   
   Sponsored-by: nxtedition AB
   Signed-off-by: Niklas Haas <git@haasn.dev>

   Changed files

   • libavfilter/vf_colordetectdsp.h