Builder ffmpeg-solaris10-sparc Build #10942

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 ( 6 secs )
   1. stdio
2. shell 'gsed -i ...' ( 0 secs )
   1. stdio
3. shell_1 'gsed -i ...' ( 0 secs )
   1. stdio
4. shell_2 'gsed -i ...' failed ( 0 secs )
   1. stdio
5. shell_3 './configure --samples="../../../ffmpeg/fate-suite" ...' failed ( 6 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. Rémi Denis-Courmont

   remiohnoyoudont@remlab.net

Timing:

All Changes:

:

1. Change #197957

   Category	ffmpeg
   Changed by	Rémi Denis-Courmont <remiohnoyoudont@remlab.net>
   Changed at	Tue 21 May 2024 20:16:30
   Repository	https://git.ffmpeg.org/ffmpeg.git
   Project	ffmpeg
   Branch	master
   Revision	d452db8410256550d500864ef7ba5917d6afc864

   Comments

   lavc/vc1dsp: R-V V vc1_unescape_buffer
   Notes:
   - The loop is biased toward no unescaped bytes as that should be most common.
   - The input byte array is slid rather than the (8 times smaller) bit-mask,
     as RISC-V V does not provide a bit-mask (or bit-wise) slide instruction.
   - There are two comparisons with 0 per iteration, for the same reason.
   - In case of match, bytes are copied until the first match, and the loop is
     restarted after the escape byte. Vector compression (vcompress.vm) could
     discard all escape bytes but that is slower if escape bytes are rare.
   
   Further optimisations should be possible, e.g.:
   - processing 2 bytes fewer per iteration to get rid of a 2 slides,
   - taking a short cut if the input vector contains less than 2 zeroes.
   But this is a good starting point:
   
   T-Head C908:
   vc1dsp.vc1_unescape_buffer_c:      12749.5
   vc1dsp.vc1_unescape_buffer_rvv_i32: 6009.0
   
   SpacemiT X60:
   vc1dsp.vc1_unescape_buffer_c:      11038.0
   vc1dsp.vc1_unescape_buffer_rvv_i32: 2061.0

   Changed files

   • libavcodec/riscv/vc1dsp_init.c
   • libavcodec/riscv/vc1dsp_rvv.S