Buildbot: ffmpegsos-solaris10-sparc Build #13670

Results:

Failed shell_2 shell_3 shell_4 shell_5

SourceStamp:

Project	ffmpeg
Repository	https://git.ffmpeg.org/ffmpeg.git
Branch	master
Revision	9cbd8896708050f12ccfcb1dd9aefda9e57dc349
Got Revision	9cbd8896708050f12ccfcb1dd9aefda9e57dc349
Changes	9 changes

BuildSlave:

unstable10s

Reason:

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

Steps and Logfiles:

git update ( 7 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 ( 7 secs )
1. stdio
2. config.log
shell_4 'gmake fate-rsync' failed ( 0 secs )
1. stdio
shell_5 '../../../ffmpeg/fate.sh ../../../ffmpeg/fate_config_sos.sh' failed ( 4 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	13670	Build
codebase		Build
got_revision	9cbd8896708050f12ccfcb1dd9aefda9e57dc349	Git
project	ffmpeg	Build
repository	https://git.ffmpeg.org/ffmpeg.git	Build
revision	9cbd8896708050f12ccfcb1dd9aefda9e57dc349	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	Sat Jun 20 16:19:56 2026
End	Sat Jun 20 16:20:16 2026
Elapsed	20 secs

All Changes:

:

Change #271937

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sat 20 Jun 2026 16:08:49
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	168dfcb557787aef72a010d98273143258b55dd5

Comments

swscale/ops: add SWS_RW_PALETTE for PAL8 read type
I decided to model this as a separate read/write type, rather than as a
separate operation (e.g. SWS_OP_PALETTE), because it makes the semantics
surrounding the read value range, plane pointer setup, etc. much cleaner.

(This will become evident in the upcoming changes to the dispatch layer)

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/ops.c
libswscale/ops.h
libswscale/uops.c

Change #271938

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sat 20 Jun 2026 16:08:49
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	d26994d35f9dd4f8080bde57805f112362c061fe

Comments

swscale/format: exclude palette formats for output
In theory, we could learn to handle them internally, using the same
systematic palette trick, but I'll defer this for now, as vf_scale already
handles this internally.

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/format.c

Change #271939

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sat 20 Jun 2026 16:08:49
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	efbfd754349785a15b107f333aa64f30848d55ba

Comments

swscale/ops_dispatch: add support for dispatching palette reads
This requires some tiny bit of extra setup work from the dispatch layer.
Specifically, we need to arrange for the palette data pointer to end up in
exec.in[1], and to disable the pointer advancement logic for this plane (this
can be accomplished by just setting the stride and bump to 0).

We also want to disable the tail buffer / overflow pixel copying logic for
the palette, which can be accomplished by ensuring that p->planes_in only
contains the number of *data* planes, excluding the fixed palette.

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/ops_dispatch.c

Change #271940

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sat 20 Jun 2026 16:08:49
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	5163b05552edbbdc98712257bda0353dfc45bb02

Comments

swscale/uops: add SWS_UOP_READ_PALETTE
This commit only adds the uop itself; it does not yet add any implementations.

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/uops.c
libswscale/uops.h
libswscale/uops_macros.h

Change #271941

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sat 20 Jun 2026 16:08:49
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	62173502692d9bc03f1d9725b9ee40167c4bb8ec

Comments

swscale/uops_backend: add SWS_UOP_READ_PALETTE reference implementation
This does not actually generate any code yet as the macro is still empty,
but that will change once I add support for generated palette reads to
the format handling code. This logic merely needs to be in place first
to avoid introducing broken intermediate states where palette uops are
generated but not implemented by the reference backend.

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/uops_backend.c
libswscale/uops_tmpl.c

Change #271942

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sat 20 Jun 2026 16:08:49
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	ffd6855a50f175ac1beb2cc32687f828754cdb97

Comments

swscale/vulkan/ops: properly error out for unsupported read modes
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/vulkan/ops.c

Change #271943

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sat 20 Jun 2026 16:08:49
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	d4b9b94ccb43a4f84a0748f2965e700fbcc6b54b

Comments

swscale/format: add support for AV_PIX_FMT_PAL8
This is handled using the new SWS_RW_PALETTE read op mode. We need to be a bit
careful to use the correct pixfmt descriptor downstream, because the descriptor
for PAL8 itself merely describes the *index*, rather than the actual data
values.

Accomplish this by introducing a new function to map the palette format to the
resulting pixel format after applying the palette (explicitly documented as
AV_PIX_FMT_RGB32).

+pal8 16x16 -> rgb24 16x16:
+  [ u8 +++X] SWS_OP_READ         : 4 elem(s) palette >> 0
+    min: {0 0 0 _}, max: {255 255 255 _}
+  [ u8 +++X] SWS_OP_SWIZZLE      : 2103
+    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)
+ translated micro-ops:
+    u8_read_palette_xyzw
+    u8_permute_xz_zx
+    u8_write_packed_xyz
...

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/format.c
libswscale/uops_macros.h
tests/ref/fate/sws-ops-list

Change #271944

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sat 20 Jun 2026 16:08:49
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	310df19fcd16d5e416030781eda2dcdb2761933c

Comments

tests/checkasm/sw_ops: add check for SWS_UOP_READ_PALETTE
We just need to ensure the palette contains valid data, which will happen
automatically as long as the plane 1 is large enough.

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

tests/checkasm/sw_ops.c

Change #271945

Category	ffmpeg
Changed by	Niklas Haas <gitohnoyoudont@haasn.dev>
Changed at	Sat 20 Jun 2026 16:08:49
Repository	https://git.ffmpeg.org/ffmpeg.git
Project	ffmpeg
Branch	master
Revision	9cbd8896708050f12ccfcb1dd9aefda9e57dc349

Comments

swscale/x86/ops: add AVX2/SSE4 path for SWS_UOP_READ_PALETTE
The AVX2 is a fairly straightforward vpgatherdd + 4x4 transpose. The SSE4
fallback is an unrolled scalar loop, for lack of anything better to do.

checkasm:
 - CPU: AMD Ryzen 9 9950X3D 16-Core Processor (00B40F40)
 - Timing source: x86 (rdtsc)
 - Bench duration: 10000 µs per function (45898205 cycles)
 - Random seed: 2518020648

Benchmark results:
  name                             cycles (vs ref)
  u8_read_palette_xyzw_c:          2877.5
  u8_read_palette_xyzw_x86_sse4:   1951.9 ( 1.47x)
  u8_read_palette_xyzw_x86_avx2:   1051.6 ( 2.74x)

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

libswscale/x86/ops.c
libswscale/x86/ops_int.asm
libswscale/x86/uops_macros.asm.h

Builder ffmpegsos-solaris10-sparc Build #13670

Results:

SourceStamp:

BuildSlave:

Reason:

Steps and Logfiles:

Build Properties:

Forced Build Properties:

Responsible Users:

Timing:

All Changes:

:

Change #271937

Comments

Changed files

Change #271938

Comments

Changed files

Change #271939

Comments

Changed files

Change #271940

Comments

Changed files

Change #271941

Comments

Changed files

Change #271942

Comments

Changed files

Change #271943

Comments

Changed files

Change #271944

Comments

Changed files

Change #271945

Comments

Changed files