From: Lynne <dev@lynne.ee>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH v3 5/5] lavc: implement a Vulkan-based VC-2 encoder Implements a Vulkan based dirac encoder. Supports Haar and Legall wavelets and should work with all wavelet depths.
Date: Fri, 18 Apr 2025 03:11:13 +0200
Message-ID: <ecffacc5-958d-47f2-939d-7822fc7c51db@lynne.ee> (raw)
In-Reply-To: <20250417235543.227108-5-47210458+raphaelthegreat@users.noreply.github.com>
On 18/04/2025 01:55, IndecisiveTurtle wrote:
> From: IndecisiveTurtle <geoster3d@gmail.com>
>
> Performance wise, encoding a 1080p 1-minute video is performed in about 2.5 minutes with the cpu encoder running on my Ryzen 5 4600H, while it takes about 30 seconds on my NVIDIA GTX 1650
>
> Haar shader has a subgroup optimized variant that applies when configured wavelet depth allows it
> ---
> configure | 1 +
> libavcodec/Makefile | 3 +
> libavcodec/allcodecs.c | 1 +
> libavcodec/vc2enc_vulkan.c | 959 +++++++++++++++++++
> libavcodec/vulkan/vc2_dwt_haar.comp | 82 ++
> libavcodec/vulkan/vc2_dwt_haar_subgroup.comp | 75 ++
> libavcodec/vulkan/vc2_dwt_hor_legall.comp | 82 ++
> libavcodec/vulkan/vc2_dwt_upload.comp | 96 ++
> libavcodec/vulkan/vc2_dwt_ver_legall.comp | 78 ++
> libavcodec/vulkan/vc2_encode.comp | 169 ++++
> libavcodec/vulkan/vc2_slice_sizes.comp | 170 ++++
> 11 files changed, 1716 insertions(+)
> create mode 100644 libavcodec/vc2enc_vulkan.c
> create mode 100644 libavcodec/vulkan/vc2_dwt_haar.comp
> create mode 100644 libavcodec/vulkan/vc2_dwt_haar_subgroup.comp
> create mode 100644 libavcodec/vulkan/vc2_dwt_hor_legall.comp
> create mode 100644 libavcodec/vulkan/vc2_dwt_upload.comp
> create mode 100644 libavcodec/vulkan/vc2_dwt_ver_legall.comp
> create mode 100644 libavcodec/vulkan/vc2_encode.comp
> create mode 100644 libavcodec/vulkan/vc2_slice_sizes.comp
LGTM.
Planning to push this tomorrow unless there are objections.
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next prev parent reply other threads:[~2025-04-18 1:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-17 23:55 [FFmpeg-devel] [PATCH v3 1/5] libavcodec/vc2enc: Split out common functions between software and hardware encoders IndecisiveTurtle
2025-04-17 23:55 ` [FFmpeg-devel] [PATCH v3 2/5] libavcodec/vc2enc: Switch quant to int IndecisiveTurtle
2025-04-17 23:55 ` [FFmpeg-devel] [PATCH v3 3/5] libavcodec/vc2enc: Pass quant array as argument to init function IndecisiveTurtle
2025-04-17 23:55 ` [FFmpeg-devel] [PATCH v3 4/5] libavcodec/vulkan: Add modifications to common shader for VC2 vulkan encoder IndecisiveTurtle
2025-04-17 23:55 ` [FFmpeg-devel] [PATCH v3 5/5] lavc: implement a Vulkan-based VC-2 encoder Implements a Vulkan based dirac encoder. Supports Haar and Legall wavelets and should work with all wavelet depths IndecisiveTurtle
2025-04-18 1:11 ` Lynne [this message]
2025-04-18 1:19 ` James Almer
2025-04-18 1:18 ` James Almer
2025-04-18 9:17 ` Andreas Rheinhardt
2025-04-18 9:32 ` Andreas Rheinhardt
2025-04-18 8:39 ` [FFmpeg-devel] [PATCH v3 1/5] libavcodec/vc2enc: Split out common functions between software and hardware encoders Andreas Rheinhardt
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