[FFmpeg-devel] [PATCH 5/8] lavc/nvenc: Add hardware config metadata

[Mark Thompson]

NOT TESTED.
---
Needs someone with suitable hardware to try it.

With this and the relevant ffmpeg patches, existing stuff should continue to 
work and you should also be able to choose between multiple devices for a 
standalone encoder with things like:

ffmpeg -init_hw_device cuda:2 ... -c:v nvenc ...
ffmpeg -init_hw_device d3d11:2 ... -c:v nvenc ...


 libavcodec/nvenc.c      | 11 +++++++++++
 libavcodec/nvenc.h      |  1 +
 libavcodec/nvenc_h264.c |  1 +
 libavcodec/nvenc_hevc.c |  1 +
 4 files changed, 14 insertions(+)

diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index 9a96bf2bba..b0cd8874ee 100644
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -30,6 +30,7 @@
 #include "libavutil/avassert.h"
 #include "libavutil/mem.h"
 #include "libavutil/pixdesc.h"
+#include "hwconfig.h"
 #include "internal.h"
 
 #define CHECK_CU(x) FF_CUDA_CHECK_DL(avctx, dl_fn->cuda_dl, x)
@@ -55,6 +56,16 @@ const enum AVPixelFormat ff_nvenc_pix_fmts[] = {
     AV_PIX_FMT_NONE
 };
 
+const AVCodecHWConfigInternal *ff_nvenc_hw_configs[] = {
+    HW_CONFIG_ENCODER_FRAMES(CUDA,  CUDA),
+    HW_CONFIG_ENCODER_DEVICE(NONE,  CUDA),
+#if CONFIG_D3D11VA
+    HW_CONFIG_ENCODER_FRAMES(D3D11, D3D11),
+    HW_CONFIG_ENCODER_DEVICE(NONE,  D3D11),
+#endif
+    NULL,
+};
+
 #define IS_10BIT(pix_fmt)  (pix_fmt == AV_PIX_FMT_P010    || \
                             pix_fmt == AV_PIX_FMT_P016    || \
                             pix_fmt == AV_PIX_FMT_YUV444P16)
diff --git a/libavcodec/nvenc.h b/libavcodec/nvenc.h
index c44c81e675..c80332d914 100644
--- a/libavcodec/nvenc.h
+++ b/libavcodec/nvenc.h
@@ -217,5 +217,6 @@ int ff_nvenc_encode_frame(AVCodecContext *avctx, AVPacket 
*pkt,
 void ff_nvenc_encode_flush(AVCodecContext *avctx);
 
 extern const enum AVPixelFormat ff_nvenc_pix_fmts[];
+extern const AVCodecHWConfigInternal *ff_nvenc_hw_configs[];
 
 #endif /* AVCODEC_NVENC_H */
diff --git a/libavcodec/nvenc_h264.c b/libavcodec/nvenc_h264.c
index 479155fe15..6d82422308 100644
--- a/libavcodec/nvenc_h264.c
+++ b/libavcodec/nvenc_h264.c
@@ -248,4 +248,5 @@ AVCodec ff_h264_nvenc_encoder = {
     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
     .pix_fmts       = ff_nvenc_pix_fmts,
     .wrapper_name   = "nvenc",
+    .hw_configs     = ff_nvenc_hw_configs,
 };
diff --git a/libavcodec/nvenc_hevc.c b/libavcodec/nvenc_hevc.c
index 7c9b3848f1..58d5265977 100644
--- a/libavcodec/nvenc_hevc.c
+++ b/libavcodec/nvenc_hevc.c
@@ -206,4 +206,5 @@ AVCodec ff_hevc_nvenc_encoder = {
     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HARDWARE,
     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
     .wrapper_name   = "nvenc",
+    .hw_configs     = ff_nvenc_hw_configs,
 };
-- 
2.25.1

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