On 11/15/24 05:50, Lynne wrote:
This commit implements a standard, compliant, version 3 and version 4
FFv1 encoder, entirely in Vulkan. The encoder is written in standard
GLSL and requires a Vulkan 1.3 supporting GPU with the BDA extension.
The encoder can use any amount of slices, but nominally, should use
32x32 slices (1024 in total) to maximize parallelism.
All features are supported, as well as all pixel formats.
This includes:
- Rice
- Range coding with a custom quantization table
- PCM encoding
CRC calculation is also massively parallelized on the GPU.
Encoding of unaligned dimensions on subsampled data requires
version 4, or requires oversizing the image to 64-pixel alignment
and cropping out the padding via container flags.
---
configure | 1 +
libavcodec/Makefile | 1 +
libavcodec/allcodecs.c | 1 +
libavcodec/ffv1enc.c | 2 +-
libavcodec/ffv1enc_vulkan.c | 1598 ++++++++++++++++++++++++
libavcodec/vulkan/Makefile | 8 +
libavcodec/vulkan/common.comp | 182 +++
libavcodec/vulkan/ffv1_common.comp | 75 ++
libavcodec/vulkan/ffv1_enc.comp | 67 +
libavcodec/vulkan/ffv1_enc_ac.comp | 83 ++
libavcodec/vulkan/ffv1_enc_common.comp | 101 ++
libavcodec/vulkan/ffv1_enc_rct.comp | 85 ++
libavcodec/vulkan/ffv1_enc_rgb.comp | 83 ++
libavcodec/vulkan/ffv1_enc_setup.comp | 153 +++
libavcodec/vulkan/ffv1_enc_vlc.comp | 112 ++
libavcodec/vulkan/ffv1_reset.comp | 55 +
libavcodec/vulkan/ffv1_vlc.comp | 122 ++
libavcodec/vulkan/rangecoder.comp | 190 +++
18 files changed, 2918 insertions(+), 1 deletion(-)
create mode 100644 libavcodec/ffv1enc_vulkan.c
create mode 100644 libavcodec/vulkan/common.comp
create mode 100644 libavcodec/vulkan/ffv1_common.comp
create mode 100644 libavcodec/vulkan/ffv1_enc.comp
create mode 100644 libavcodec/vulkan/ffv1_enc_ac.comp
create mode 100644 libavcodec/vulkan/ffv1_enc_common.comp
create mode 100644 libavcodec/vulkan/ffv1_enc_rct.comp
create mode 100644 libavcodec/vulkan/ffv1_enc_rgb.comp
create mode 100644 libavcodec/vulkan/ffv1_enc_setup.comp
create mode 100644 libavcodec/vulkan/ffv1_enc_vlc.comp
create mode 100644 libavcodec/vulkan/ffv1_reset.comp
create mode 100644 libavcodec/vulkan/ffv1_vlc.comp
create mode 100644 libavcodec/vulkan/rangecoder.comp
I'll push the patchset tomorrow if there are no more comments to fix.
We should definitely add FATE tests for such implementations.
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