ffmpeg

Commit Graph

Author	SHA1	Message	Date
Lynne	83fa39eb06	lavfi/vulkan: use av_get_random_seed instead of rand We need at least a few bits of entropy to determine the start index of each queue, in order to let filters run in parallel as much as possible, and rand() is not thread safe and disrupts any external API's usage of rand, so instead replace it with av_get_random_seed. While it has more overhead than rand, we only run it once per filter upon init.	2020-05-29 13:10:58 +01:00
Lynne	727cac88b8	lavfi/vulkan: use all enabled queues in the queue family This should significantly improve the performance with certain filterchains.	2020-05-23 19:07:50 +01:00
Lynne	907ae87d6e	lavfi: add an chromaber_vulkan filter This commit adds a chromatic aberration filter for Vulkan that attempts to emulate a lens chromatic aberration effect. For a YUV frame it will instead shift the chroma channels, providing a simple approximation.	2020-02-04 23:19:48 +00:00

Author

SHA1

Message

Date

Lynne

83fa39eb06

lavfi/vulkan: use av_get_random_seed instead of rand

We need at least a few bits of entropy to determine the start index of each
queue, in order to let filters run in parallel as much as possible, and
rand() is not thread safe and disrupts any external API's usage of rand,
so instead replace it with av_get_random_seed.
While it has more overhead than rand, we only run it once per filter upon init.

2020-05-29 13:10:58 +01:00

Lynne

727cac88b8

lavfi/vulkan: use all enabled queues in the queue family

This should significantly improve the performance with certain
filterchains.

2020-05-23 19:07:50 +01:00

Lynne

907ae87d6e

lavfi: add an chromaber_vulkan filter

This commit adds a chromatic aberration filter for Vulkan that attempts to
emulate a lens chromatic aberration effect.
For a YUV frame it will instead shift the chroma channels, providing a
simple approximation.

2020-02-04 23:19:48 +00:00

3 Commits