Buildbot: ffmpegsos-solaris10-sparc Build #13412

Results:

Failed shell_2 shell_3 shell_4 shell_5

SourceStamp:

Project	ffmpeg
Repository	https://git.ffmpeg.org/ffmpeg.git
Branch	master
Revision	0c1a1ee12e09b8eb9e085d66486da47e9829edc1
Got Revision	0c1a1ee12e09b8eb9e085d66486da47e9829edc1
Changes	4 changes

BuildSlave:

unstable10s

Reason:

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

Steps and Logfiles:

git update ( 15 secs )
1. stdio
shell 'gsed -i ...' ( 0 secs )
1. stdio
shell_1 'gsed -i ...' ( 0 secs )
1. stdio
shell_2 'gsed -i ...' failed ( 0 secs )
1. stdio
shell_3 './configure --samples="../../../ffmpeg/fate-suite" ...' failed ( 12 secs )
1. stdio
2. config.log
shell_4 'gmake fate-rsync' failed ( 1 secs )
1. stdio
shell_5 '../../../ffmpeg/fate.sh ../../../ffmpeg/fate_config_sos.sh' failed ( 6 secs )

Build Properties:

Name	Value	Source
branch	master	Build
builddir	/export/home/buildbot-unstable10s/slave/ffmpegsos-solaris10-sparc	slave
buildername	ffmpegsos-solaris10-sparc	Builder
buildnumber	13412	Build
codebase		Build
got_revision	0c1a1ee12e09b8eb9e085d66486da47e9829edc1	Git
project	ffmpeg	Build
repository	https://git.ffmpeg.org/ffmpeg.git	Build
revision	0c1a1ee12e09b8eb9e085d66486da47e9829edc1	Build
scheduler	schedule-ffmpegsos-solaris10-sparc	Scheduler
slavename	unstable10s	BuildSlave
workdir	/export/home/buildbot-unstable10s/slave/ffmpegsos-solaris10-sparc	slave (deprecated)

Forced Build Properties:

Name	Label	Value

Responsible Users:

Niklas Haas
gitohnoyoudont@haasn.dev

Timing:

Start	Sun May 17 12:45:31 2026
End	Sun May 17 12:46:08 2026
Elapsed	36 secs

All Changes:

:

Change #267468

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sun 17 May 2026 12:41:34
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	369a301669529db08947ccb45492dd4cb604d871

Comments

swscale/tests/sws_ops: use a dummy ops backend for printing
This ensures that the ops printing path goes through the same code as the
actual ops dispatch backend, including all sub-passes etc.

Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/tests/sws_ops.c

Change #267469

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sun 17 May 2026 12:41:34
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	2dfe055dddb3d1b07b224d261876f6c180e854a8

Comments

swscale/tests/sws_ops: print split sub-passes for lists with filters
This allows us to inspect exactly the logic that is going on inside the CPU
backends (which don't support bare filter passes).

 rgb24 16x16 -> rgb24 16x32:
   [ u8 +++X] SWS_OP_READ         : 3 elem(s) packed >> 0
     min: {0 0 0 _}, max: {255 255 255 _}
   [ u8 +++X] SWS_OP_FILTER_V     : 16 -> 32 point (1 taps)
     min: {0 0 0 _}, max: {255 255 255 _}
   [f32 +++X] SWS_OP_CONVERT      : f32 -> u8
     min: {0 0 0 _}, max: {255 255 255 _}
   [ u8 XXXX] SWS_OP_WRITE        : 3 elem(s) packed >> 0
     (X = unused, z = byteswapped, + = exact, 0 = zero)
+ Retrying with split passes:
+  [ u8 +++X] SWS_OP_READ         : 3 elem(s) packed >> 0
+    min: {0 0 0 _}, max: {255 255 255 _}
+  [ u8 XXXX] SWS_OP_WRITE        : 3 elem(s) planar >> 0
+    (X = unused, z = byteswapped, + = exact, 0 = zero)
+ Sub-pass #1:
+  [ u8 +++X] SWS_OP_READ         : 3 elem(s) planar >> 0 + 1 tap point filter (V)
+    min: {0 0 0 _}, max: {255 255 255 _}
+  [f32 +++X] SWS_OP_CONVERT      : f32 -> u8
+    min: {0 0 0 _}, max: {255 255 255 _}
+  [ u8 XXXX] SWS_OP_WRITE        : 3 elem(s) packed >> 0
+    (X = unused, z = byteswapped, + = exact, 0 = zero)
 rgb24 16x16 -> rgb24 32x16:
   [ u8 +++X] SWS_OP_READ         : 3 elem(s) packed >> 0
     min: {0 0 0 _}, max: {255 255 255 _}
   [ u8 +++X] SWS_OP_FILTER_H     : 16 -> 32 point (1 taps)
     min: {0 0 0 _}, max: {255 255 255 _}
   [f32 +++X] SWS_OP_CONVERT      : f32 -> u8
     min: {0 0 0 _}, max: {255 255 255 _}
   [ u8 XXXX] SWS_OP_WRITE        : 3 elem(s) packed >> 0
     (X = unused, z = byteswapped, + = exact, 0 = zero)
+ Retrying with split passes:
+  [ u8 +++X] SWS_OP_READ         : 3 elem(s) packed >> 0
+    min: {0 0 0 _}, max: {255 255 255 _}
+  [ u8 XXXX] SWS_OP_WRITE        : 3 elem(s) planar >> 0
+    (X = unused, z = byteswapped, + = exact, 0 = zero)
+ Sub-pass #1:
+  [ u8 +++X] SWS_OP_READ         : 3 elem(s) planar >> 0 + 1 tap point filter (H)
+    min: {0 0 0 _}, max: {255 255 255 _}
+  [f32 +++X] SWS_OP_CONVERT      : f32 -> u8
+    min: {0 0 0 _}, max: {255 255 255 _}
+  [ u8 XXXX] SWS_OP_WRITE        : 3 elem(s) packed >> 0
+    (X = unused, z = byteswapped, + = exact, 0 = zero)

Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/tests/sws_ops.c
tests/ref/fate/sws-ops-list

Change #267470

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sun 17 May 2026 12:41:34
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	812b5654ae6f56ce59418ef4259227d8c9c08b06

Comments

swscale/tests/sws_ops: use SWS_SCALE_BILINEAR for printing ops lists
This actually changes the behavior vs SWS_SCALE_POINT, because point scaling
is bit-exact and thus implies a different set of optimizations.

Ideally, we would still try and somehow merge this with tests/swscale.c to
allow testing a different set of scalers; but I still don't have a good idea
for how to accomplish that here.

As it stands, results in additional extra dithering steps in almost all
filters involving scaling, e.g.:

 rgb24 16x16 -> rgb24 16x32:
   [ u8 +++X] SWS_OP_READ         : 3 elem(s) packed >> 0
     min: {0 0 0 _}, max: {255 255 255 _}
-  [ u8 +++X] SWS_OP_FILTER_V     : 16 -> 32 point (1 taps)
+  [ u8 ...X] SWS_OP_FILTER_V     : 16 -> 32 bilinear (2 taps)
     min: {0 0 0 _}, max: {255 255 255 _}
+  [f32 ...X] SWS_OP_DITHER       : 16x16 matrix + {0 3 2 -1}
+    min: {1/512 1/512 1/512 _}, max: {255.998047 255.998047 255.998047 _}
+  [f32 ...X] SWS_OP_MIN          : x <= {255 255 255 _}
+    min: {1/512 1/512 1/512 _}, max: {255 255 255 _}
   [f32 +++X] SWS_OP_CONVERT      : f32 -> u8
     min: {0 0 0 _}, max: {255 255 255 _}
   [ u8 XXXX] SWS_OP_WRITE        : 3 elem(s) packed >> 0
     (X = unused, z = byteswapped, + = exact, 0 = zero)

Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/tests/sws_ops.c
tests/ref/fate/sws-ops-list

Change #267471

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sun 17 May 2026 12:41:34
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	0c1a1ee12e09b8eb9e085d66486da47e9829edc1

Comments

swscale/ops_optimizer: don't push scale past truncating conversions
In an op list like:

  [ u8 +XXX] SWS_OP_READ         : 1 elem(s) planar >> 3
  [ u8 .XXX] SWS_OP_FILTER_V     : 256 -> 320 bilinear (2 taps)
  [f32 .XXX] SWS_OP_SCALE        : * 65535
  [f32 +XXX] SWS_OP_CONVERT      : f32 -> u16
  [u16 zXXX] SWS_OP_SWAP_BYTES
  [u16 zzzX] SWS_OP_SWIZZLE      : 0003
  [u16 zzz+] SWS_OP_CLEAR        : {_ _ _ 65535}
  [u16 XXXX] SWS_OP_WRITE        : 4 elem(s) packed >> 0

The current version of the code would happily push the SWS_OP_SCALE past
the truncating conversion, leading to degenerate loss of information. (In
this case, the result was quite extreme)

Affects quality across a wide range of formats, e.g.:

 rgb24 16x16 -> rgb48be 16x32:
   [ u8 +++X] SWS_OP_READ         : 3 elem(s) packed >> 0
     min: {0 0 0 _}, max: {255 255 255 _}
   [ u8 ...X] SWS_OP_FILTER_V     : 16 -> 32 bilinear (2 taps)
     min: {0 0 0 _}, max: {255 255 255 _}
+  [f32 ...X] SWS_OP_SCALE        : * 257
+    min: {0 0 0 _}, max: {65535 65535 65535 _}
   [f32 +++X] SWS_OP_CONVERT      : f32 -> u16
-    min: {0 0 0 _}, max: {255 255 255 _}
-  [u16 +++X] SWS_OP_SCALE        : * 257
     min: {0 0 0 _}, max: {65535 65535 65535 _}
   [u16 zzzX] SWS_OP_SWAP_BYTES
     min: {0 0 0 _}, max: {65535 65535 65535 _}
   [u16 XXXX] SWS_OP_WRITE        : 3 elem(s) packed >> 0
     (X = unused, z = byteswapped, + = exact, 0 = zero)

Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/ops_optimizer.c
tests/ref/fate/sws-ops-list

Builder ffmpegsos-solaris10-sparc Build #13412

Results:

SourceStamp:

BuildSlave:

Reason:

Steps and Logfiles:

Build Properties:

Forced Build Properties:

Responsible Users:

Timing:

All Changes:

:

Change #267468

Comments

Changed files

Change #267469

Comments

Changed files

Change #267470

Comments

Changed files

Change #267471

Comments

Changed files