Stowage/ffmpeg
2
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2026-02-06 09:49:56 +00:00
Code Issues Projects Releases Packages Wiki Activity
122665 commits 38 branches 415 tags 285 MiB
Commit graph

2 commits

Author SHA1 Message Date
Rémi Denis-Courmont
f2c30fe15a lavc/riscv: add forward-edge CFI landing pads 2024-07-25 23:10:14 +03:00
Rémi Denis-Courmont
4ad5b9c8db lavc/startcode: add R-V Zbb startcode_find_candidate 
The main loop processes 8 bytes in 5 instructions.
For comparison, the optimal plain strnlen() requires 4 instructions per
byte (6.4x worse): LBU; ADDI; BEQZ; BNE. The current libavcodec C code
involves 5 instructions per byte (8x worse). Actual benchmarks may be
slightly less favourable due to latency from ORC.B to BNE.
 2024-05-19 10:03:49 +03:00