Added linux support for amf encoder through vulkan.
To use h.264(AMD VCE) encoder on linux amdgru-pro version 19.20+ and
amf-amdgpu-pro package(amdgru-pro contains, but does not install automatically)
are required.
This driver can be installed using amdgpu-pro-install script in official amd
driver archive.
Initialization of amf encoder occurs in this order:
1) trying to initialize through dx11(only windows)
2) trying to initialize through dx9(only windows)
3) trying to initialize through vulkan
Only Vulkan initialization available on linux.
---
doc/general.texi | 16 +++++++++++++---
libavcodec/amfenc.c | 17 +++++++++++++++--
2 files changed, 28 insertions(+), 5 deletions(-)
diff --git a/doc/general.texi b/doc/general.texi
index 3c0c803449..056f88fba3 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -27,16 +27,26 @@ enable it.
@section AMD AMF/VCE
-FFmpeg can use the AMD Advanced Media Framework library under Windows
-for accelerated H.264 and HEVC encoding on hardware with Video Coding Engine
(VCE).
+FFmpeg can use the AMD Advanced Media Framework library
+for accelerated H.264 and HEVC(only windows) encoding on hardware with Video
Coding Engine (VCE).
-To enable support you must obtain the AMF framework header files from
+To enable support you must obtain the AMF framework header files(version
1.4.9+) from
@url{https://github.com/GPUOpen-LibrariesAndSDKs/AMF.git}.
Create an @code{AMF/} directory in the system include path.
Copy the contents of @code{AMF/amf/public/include/} into that directory.
Then configure FFmpeg with @code{--enable-amf}.
+Initialization of amf encoder occurs in this order:
+1) trying to initialize through dx11(only windows)
+2) trying to initialize through dx9(only windows)
+3) trying to initialize through vulkan
+
+To use h.264(AMD VCE) encoder on linux amdgru-pro version 19.20+ and
amf-amdgpu-pro
+package(amdgru-pro contains, but does not install automatically) are required.
+
+This driver can be installed using amdgpu-pro-install script in official amd
driver archive.
+
@section AviSynth
FFmpeg can read AviSynth scripts as input. To enable support, pass
diff --git a/libavcodec/amfenc.c b/libavcodec/amfenc.c
index 384d8efc92..f66b95645e 100644
--- a/libavcodec/amfenc.c
+++ b/libavcodec/amfenc.c
@@ -213,6 +213,7 @@ static int amf_init_from_dxva2_device(AVCodecContext
*avctx, AVDXVA2DeviceContex
static int amf_init_context(AVCodecContext *avctx)
{
AmfContext *ctx = avctx->priv_data;
+ AMFContext1 *context1 = NULL;
AMF_RESULT res;
av_unused int ret;
@@ -311,8 +312,20 @@ static int amf_init_context(AVCodecContext *avctx)
if (res == AMF_OK) {
av_log(avctx, AV_LOG_VERBOSE, "AMF initialisation succeeded
via D3D9.\n");
} else {
- av_log(avctx, AV_LOG_ERROR, "AMF initialisation failed via
D3D9: error %d.\n", res);
- return AVERROR(ENOSYS);
+ AMFGuid guid = IID_AMFContext1();
+ res = ctx->context->pVtbl->QueryInterface(ctx->context, &guid,
(void**)&context1);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN,
"CreateContext1() failed with error %d\n", res);
+
+ res = context1->pVtbl->InitVulkan(context1, NULL);
+ context1->pVtbl->Release(context1);
+ if (res != AMF_OK) {
+ if (res == AMF_NOT_SUPPORTED)
+ av_log(avctx, AV_LOG_ERROR, "AMF via Vulkan is not
supported on the given device.\n");
+ else
+ av_log(avctx, AV_LOG_ERROR, "AMF failed to initialise
on the given Vulkan device: %d.\n", res);
+ return AVERROR(ENOSYS);
+ }
+ av_log(avctx, AV_LOG_VERBOSE, "AMF initialisation succeeded
via Vulkan.\n");
}
}
}
--
2.19.1.windows.1
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