From 2090b11411959e38c5df0b9b50dacab6224a3d44 Mon Sep 17 00:00:00 2001
From: cmhu <2657262686@qq.com>
Date: Mon, 19 Sep 2022 10:18:42 +0800
Subject: [PATCH] readme完善

---
 README.md           |  7 ++++++-
 nv-codec-headers    |  1 +
 src/FFNvDecoder.cpp | 11 -----------
 3 files changed, 7 insertions(+), 12 deletions(-)
 create mode 160000 nv-codec-headers

diff --git a/README.md b/README.md
index 3e9501d..9e1def6 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,8 @@
 #### ffmpeg编译配置
+1. 安装cuda
+2. 安装 nv-codec-headers
+    支持 cuvid 需要安装 nv-codec-headers， 进入 nv-codec-headers 文件夹后以sudo权限make && make install即可
+3. 编译ffmpeg
 ~~~
 ./configure --enable-debug --extra-cflags=-g --extra-ldflags=-g --disable-optimizations --disable-stripping --enable-cuda --enable-cuvid --enable-nvenc --disable-x86asm --enable-nonfree --enable-libnpp --extra-cflags=-I/usr/local/cuda-11.7/targets/x86_64-linux/include --extra-cflags=-fPIC --extra-ldflags=-L/usr/local/cuda-11.7/targets/x86_64-linux/lib --enable-shared --enable-pic --enable-ffplay --prefix=../bin
 ~~~
@@ -7,4 +11,5 @@
 --enable-debug --extra-cflags=-g --extra-ldflags=-g --disable-optimizations --disable-stripping
 ~~~
 
-#### 
\ No newline at end of file
+#### SDK说明
+1. 对外接口主要是 FFNvDecoderManager 类，可支持多个解码器；也可直接使用 FFNvDecoder ，但是不建议，FFNvDecoderManager已经封装了 FFNvDecoder 的接口
\ No newline at end of file
diff --git a/nv-codec-headers b/nv-codec-headers
new file mode 160000
index 0000000..3ed7c9a
--- /dev/null
+++ b/nv-codec-headers
@@ -0,0 +1 @@
+Subproject commit 3ed7c9a0a2c0b698b83088e13008f3ec983219b2
diff --git a/src/FFNvDecoder.cpp b/src/FFNvDecoder.cpp
index 4f759f7..9e61229 100644
--- a/src/FFNvDecoder.cpp
+++ b/src/FFNvDecoder.cpp
@@ -221,17 +221,6 @@ void FFNvDecoder::decode_thread()
 			}
 
 			mFrameQueue.addTail();
-
-			// if (gpuFrame->format == hw_pix_fmt) 
-			// {
-			// 	/* retrieve data from GPU to CPU */
-			// 	if (av_hwframe_transfer_data(pong_frame, gpuFrame, 0) < 0) 
-			// 	{
-			// 		cout << "Failed to transfer the data to system memory";
-			// 		return;
-			// 	}
-			// }
-
 		}
 		av_packet_unref(pkt);
 	}
--
libgit2 0.21.4