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| author | Artem Dyomin <artem.dyomin@qt.io> | 2023-09-08 14:27:24 +0200 |
|---|---|---|
| committer | Qt Cherry-pick Bot <cherrypick_bot@qt-project.org> | 2023-09-09 11:09:38 +0000 |
| commit | 57681829b12f25617f22d2aa9b9afc9f35def4ec (patch) | |
| tree | f620592a14448584ef157198137d3121aa8ee5c6 | |
| parent | f1c4c426ec98439567f45c58a70ebee89ba37fd1 (diff) | |
Set AV_HWDEVICE_TYPE_CUDA first priority on Linux
The reason is that on nvidia graphic cards AV_HWDEVICE_TYPE_VAAPI
gets failed on the vaapi hw format selection, and it falls back
to sw decoding.
Let's go with AV_HWDEVICE_TYPE_CUDA first on nvidia cards;
on other cards, nvidia drivers cannot be detected and cuda is not used.
Change-Id: I605f5525334ecb06198a8e1e410e637e32a8ee32
Reviewed-by: Pavel Dubsky <pavel.dubsky@qt.io>
Reviewed-by: Artem Dyomin <artem.dyomin@qt.io>
(cherry picked from commit ff5b7a1b1e9c5470a1db10785f32eb00437c26fa)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
| -rw-r--r-- | src/plugins/multimedia/ffmpeg/qffmpeghwaccel.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/plugins/multimedia/ffmpeg/qffmpeghwaccel.cpp b/src/plugins/multimedia/ffmpeg/qffmpeghwaccel.cpp index 6d627a9b1..8ad3cc391 100644 --- a/src/plugins/multimedia/ffmpeg/qffmpeghwaccel.cpp +++ b/src/plugins/multimedia/ffmpeg/qffmpeghwaccel.cpp @@ -40,8 +40,9 @@ static const std::initializer_list<AVHWDeviceType> preferredHardwareAccelerators #if defined(Q_OS_ANDROID) AV_HWDEVICE_TYPE_MEDIACODEC, #elif defined(Q_OS_LINUX) - AV_HWDEVICE_TYPE_VAAPI, AV_HWDEVICE_TYPE_CUDA, + AV_HWDEVICE_TYPE_VAAPI, + // TODO: investigate VDPAU advantages. // nvenc/nvdec codecs use AV_HWDEVICE_TYPE_CUDA by default, but they can also use VDPAU // if it's included into the ffmpeg build and vdpau drivers are installed. |