Tag: Branch: Tree: a77365d864

master

oldabi

release/0.10

release/0.11

release/0.5

release/0.6

release/0.7

release/0.8

release/0.9

release/1.0

release/1.1

release/1.2

release/2.0

release/2.1

release/2.2

release/2.3

release/2.4

release/2.5

release/2.6

release/2.7

release/2.8

release/3.0

release/3.1

release/3.2

release/3.3

release/3.4

release/4.0

release/4.1

release/4.2

release/4.3

release/4.4

release/5.0

release/5.1

release/6.0

release/6.1

release/7.0

release/7.1

N

ffmpeg-0.6.3

n0.10

n0.10.1

n0.10.10

n0.10.11

n0.10.12

n0.10.13

n0.10.14

n0.10.15

n0.10.16

n0.10.2

n0.10.3

n0.10.4

n0.10.5

n0.10.6

n0.10.7

n0.10.8

n0.10.9

n0.11

n0.11-dev

n0.11.1

n0.11.2

n0.11.3

n0.11.4

n0.11.5

n0.12-dev

n0.5.10

n0.5.11

n0.5.12

n0.5.13

n0.5.14

n0.5.15

n0.5.5

n0.5.6

n0.5.7

n0.5.8

n0.5.9

n0.6.4

n0.6.5

n0.6.6

n0.6.7

n0.7.1

n0.7.10

n0.7.11

n0.7.12

n0.7.13

n0.7.14

n0.7.15

n0.7.16

n0.7.17

n0.7.2

n0.7.3

n0.7.4

n0.7.5

n0.7.6

n0.7.7

n0.7.8

n0.7.9

n0.8

n0.8.1

n0.8.10

n0.8.11

n0.8.12

n0.8.13

n0.8.14

n0.8.15

n0.8.2

n0.8.3

n0.8.4

n0.8.5

n0.8.6

n0.8.7

n0.8.8

n0.8.9

n0.9

n0.9.1

n0.9.2

n0.9.3

n0.9.4

n1.0

n1.0.1

n1.0.10

n1.0.2

n1.0.3

n1.0.4

n1.0.5

n1.0.6

n1.0.7

n1.0.8

n1.0.9

n1.1

n1.1-dev

n1.1.1

n1.1.10

n1.1.11

n1.1.12

n1.1.13

n1.1.14

n1.1.15

n1.1.16

n1.1.2

n1.1.3

n1.1.4

n1.1.5

n1.1.6

n1.1.7

n1.1.8

n1.1.9

n1.2

n1.2-dev

n1.2.1

n1.2.10

n1.2.11

n1.2.12

n1.2.2

n1.2.3

n1.2.4

n1.2.5

n1.2.6

n1.2.7

n1.2.8

n1.2.9

n1.3-dev

n2.0

n2.0.1

n2.0.2

n2.0.3

n2.0.4

n2.0.5

n2.0.6

n2.0.7

n2.1

n2.1-dev

n2.1.1

n2.1.2

n2.1.3

n2.1.4

n2.1.5

n2.1.6

n2.1.7

n2.1.8

n2.2

n2.2-dev

n2.2-rc1

n2.2-rc2

n2.2.1

n2.2.10

n2.2.11

n2.2.12

n2.2.13

n2.2.14

n2.2.15

n2.2.16

n2.2.2

n2.2.3

n2.2.4

n2.2.5

n2.2.6

n2.2.7

n2.2.8

n2.2.9

n2.3

n2.3-dev

n2.3.1

n2.3.2

n2.3.3

n2.3.4

n2.3.5

n2.3.6

n2.4

n2.4-dev

n2.4.1

n2.4.10

n2.4.11

n2.4.12

n2.4.13

n2.4.14

n2.4.2

n2.4.3

n2.4.4

n2.4.5

n2.4.6

n2.4.7

n2.4.8

n2.4.9

n2.5

n2.5-dev

n2.5.1

n2.5.10

n2.5.11

n2.5.2

n2.5.3

n2.5.4

n2.5.5

n2.5.6

n2.5.7

n2.5.8

n2.5.9

n2.6

n2.6-dev

n2.6.1

n2.6.2

n2.6.3

n2.6.4

n2.6.5

n2.6.6

n2.6.7

n2.6.8

n2.6.9

n2.7

n2.7-dev

n2.7.1

n2.7.2

n2.7.3

n2.7.4

n2.7.5

n2.7.6

n2.7.7

n2.8

n2.8-dev

n2.8.1

n2.8.10

n2.8.11

n2.8.12

n2.8.13

n2.8.14

n2.8.15

n2.8.16

n2.8.17

n2.8.18

n2.8.19

n2.8.2

n2.8.20

n2.8.21

n2.8.22

n2.8.3

n2.8.4

n2.8.5

n2.8.6

n2.8.7

n2.8.8

n2.8.9

n2.9-dev

n3.0

n3.0.1

n3.0.10

n3.0.11

n3.0.12

n3.0.2

n3.0.3

n3.0.4

n3.0.5

n3.0.6

n3.0.7

n3.0.8

n3.0.9

n3.1

n3.1-dev

n3.1.1

n3.1.10

n3.1.11

n3.1.2

n3.1.3

n3.1.4

n3.1.5

n3.1.6

n3.1.7

n3.1.8

n3.1.9

n3.2

n3.2-dev

n3.2.1

n3.2.10

n3.2.11

n3.2.12

n3.2.13

n3.2.14

n3.2.15

n3.2.16

n3.2.17

n3.2.18

n3.2.19

n3.2.2

n3.2.3

n3.2.4

n3.2.5

n3.2.6

n3.2.7

n3.2.8

n3.2.9

n3.3

n3.3-dev

n3.3.1

n3.3.2

n3.3.3

n3.3.4

n3.3.5

n3.3.6

n3.3.7

n3.3.8

n3.3.9

n3.4

n3.4-dev

n3.4.1

n3.4.10

n3.4.11

n3.4.12

n3.4.13

n3.4.2

n3.4.3

n3.4.4

n3.4.5

n3.4.6

n3.4.7

n3.4.8

n3.4.9

n3.5-dev

n4.0

n4.0.1

n4.0.2

n4.0.3

n4.0.4

n4.0.5

n4.0.6

n4.1

n4.1-dev

n4.1.1

n4.1.10

n4.1.11

n4.1.2

n4.1.3

n4.1.4

n4.1.5

n4.1.6

n4.1.7

n4.1.8

n4.1.9

n4.2

n4.2-dev

n4.2.1

n4.2.10

n4.2.2

n4.2.3

n4.2.4

n4.2.5

n4.2.6

n4.2.7

n4.2.8

n4.2.9

n4.3

n4.3-dev

n4.3.1

n4.3.2

n4.3.3

n4.3.4

n4.3.5

n4.3.6

n4.3.7

n4.3.8

n4.4

n4.4-dev

n4.4.1

n4.4.2

n4.4.3

n4.4.4

n4.4.5

n4.5-dev

n5.0

n5.0.1

n5.0.2

n5.0.3

n5.1

n5.1-dev

n5.1.1

n5.1.2

n5.1.3

n5.1.4

n5.1.5

n5.1.6

n5.2-dev

n6.0

n6.0.1

n6.1

n6.1-dev

n6.1.1

n6.1.2

n6.2-dev

n7.0

n7.0.1

n7.0.2

n7.1

n7.1-dev

n7.2-dev

v0.5

v0.5.1

v0.5.2

v0.5.3

v0.6

v0.6.1

Branches Tags

${ item.name }

Create tag ${ searchTerm }

Create branch ${ searchTerm }

from 'a77365d864'

${ noResults }

Commit Graph

2 Commits (a77365d86497ead7ba101b248cc1efec9676476c)

Author	SHA1	Message	Date
Rémi Denis-Courmont	bd0c3edb13	lavu/riscv: count bytes rather than words for bswap32 ... This removes the dependency on Zba at essentially zero cost.	7 months ago
Rémi Denis-Courmont	cec48e3b32	riscv: factor out the bswap32 assembler	1 year ago
Rémi Denis-Courmont	f0ef11ea83	lavc/bswapdsp: RISC-V B bswap_buf ... Simply taking the Zbb REV8 instruction into use in a simple loop gives some significant savings: bswap_buf_c: 1081.0 bswap_buf_rvb_b: 771.0 But we can also use the 64-bit REV8 as a pseudo-SIMD instruction with just one additional shift, and one fewer load, effectively doubling the bandwidth. Consequently, this patch is useful even if the compile-time target has Zbb enabled for C code: bswap_buf_c: 1081.0 bswap_buf_rvb_b: 341.0 (this patch) On the other hand, this approach fails miserably for bswap16_buf as the ratio of shifts and stores becomes unfavorable compared to naïve C: bswap16_buf_c: 1542.0 bswap16_buf_rvb_b: 1803.7 Unrolling to process 128 bits (4 samples) at a time actually worsens performance ever so slightly: bswap_buf_c: 1081.0 bswap_buf_rvb_b: 408.5	2 years ago