diff --git a/streamer/CMakeLists.txt b/streamer/CMakeLists.txt
index c5c7c2bd8..b2f04650b 100644
--- a/streamer/CMakeLists.txt
+++ b/streamer/CMakeLists.txt
@@ -40,8 +40,6 @@ if(ENABLE_DEEPSTREAM)
   link_directories(/opt/nvidia/deepstream/deepstream/lib/)
   list(APPEND ALL_STREAMER_SRCS ${DEEPSTREAM_SRCS})
   list(APPEND DEPEND_LIBS nvdsgst_meta nvds_meta)
-else()
-  message(FATAL_ERROR "Currently, DeepStream is required, we will make it optional later.")
 endif()
 
 # Link the yaml-cpp in system path, because deepstream also depends on yaml-cpp,
diff --git a/streamer/README_CN.md b/streamer/README_CN.md
index 2c76d03c1..884ae1e80 100644
--- a/streamer/README_CN.md
+++ b/streamer/README_CN.md
@@ -30,6 +30,9 @@ FastDeploy Streamer（FDStreamer）是一个AI多媒体流处理框架，以Pipe
 docker pull nvcr.io/nvidia/deepstream:6.1.1-devel
 ```
 
+### CPU
+- GSTreamer 1.14+
+
 ## 编译和运行
 
 1. [编译FastDeploy](../docs/cn/build_and_install), 或直接下载[FastDeploy预编译库](../docs/cn/build_and_install/download_prebuilt_libraries.md)
@@ -46,9 +49,12 @@ cmake .. -DFASTDEPLOY_INSTALL_DIR=${PWD}/fastdeploy-linux-x64-x.x.x
 make -j
 ```
 
+编译选项：
+- ENABLE_DEEPSTREAM，是否使用NVIDIA DeepStream，非NVIDIA GPU的环境需关闭此选项，默认ON
+
 3. 编译和运行Example
 
 | Example | 简介 |
 |:--|:--|
 | [PP-YOLOE](./examples/ppyoloe) | 多路视频接入，PP-YOLOE目标检测，NVTracker跟踪，硬编解码，写入mp4文件 |
-| [Video Decoder](./examples/video_decoder) | 视频硬解码 |  
+| [Video Decoder](./examples/video_decoder) | 视频硬解码和软解码 |  
diff --git a/streamer/README_EN.md b/streamer/README_EN.md
index 84e1a9443..c03223783 100644
--- a/streamer/README_EN.md
+++ b/streamer/README_EN.md
@@ -29,6 +29,9 @@ Install DeepStream 6.1.1 and dependencies manually，or use below docker：
 docker pull nvcr.io/nvidia/deepstream:6.1.1-devel
 ```
 
+### CPU
+- GSTreamer 1.14+
+
 ## Build
 
 1. [Build FastDeploy](../docs/en/build_and_install), or download [FastDeploy prebuilt libraries](../docs/en/build_and_install/download_prebuilt_libraries.md)
@@ -45,9 +48,12 @@ cmake .. -DFASTDEPLOY_INSTALL_DIR=${PWD}/fastdeploy-linux-x64-x.x.x
 make -j
 ```
 
+CMake Options:
+- ENABLE_DEEPSTREAM, whether to enable NVIDIA DeepStream, ON by default.
+
 3. Build and Run Example
 
 | Example | Brief |
 |:--|:--|
 | [PP-YOLOE](./examples/ppyoloe) | Multiple input videos, PP-YOLOE object detection, NvTracker, Hardware codec, writing to mp4 file |
-| [Video Decoder](./examples/video_decoder) | Video decoding using hardward |  
+| [Video Decoder](./examples/video_decoder) | Video decoding using GPU or CPU |  
diff --git a/streamer/examples/ppyoloe/cpp/README_CN.md b/streamer/examples/ppyoloe/cpp/README_CN.md
index 0d4ce4809..ec3ebf29b 100644
--- a/streamer/examples/ppyoloe/cpp/README_CN.md
+++ b/streamer/examples/ppyoloe/cpp/README_CN.md
@@ -4,7 +4,7 @@
 
 ## 编译和运行
 
-1. 需要先FastDeploy Streamer, 请参考[README](../../../README_CN.md)
+1. 该示例依赖DeepStream，需要准备DeepStream环境，并编译FastDeploy Streamer，请参考[README](../../../README_CN.md)
 
 2. 编译Example
 ```
diff --git a/streamer/examples/ppyoloe/cpp/README_EN.md b/streamer/examples/ppyoloe/cpp/README_EN.md
index 192bab502..564ba4a2a 100644
--- a/streamer/examples/ppyoloe/cpp/README_EN.md
+++ b/streamer/examples/ppyoloe/cpp/README_EN.md
@@ -4,7 +4,7 @@ English | [简体中文](README_CN.md)
 
 ## Build and Run
 
-1. Build FastDeploy Streamer first, [README](../../../README.md)
+1. This example requires DeepStream, please prepare DeepStream environment and build FastDeploy Streamer, refer to [README](../../../README.md)
 
 2. Build Example
 ```
diff --git a/streamer/examples/video_decoder/cpp/README_CN.md b/streamer/examples/video_decoder/cpp/README_CN.md
index 129268365..6cb62d67b 100644
--- a/streamer/examples/video_decoder/cpp/README_CN.md
+++ b/streamer/examples/video_decoder/cpp/README_CN.md
@@ -15,6 +15,7 @@ make -j
 
 3. 运行
 ```
-cp ../streamer_cfg.yml .
+# GPU解码（gpu.yml）或CPU解码（cpu.yml）
+cp ../gpu.yml streamer_cfg.yml
 ./video_decoder
 ```
diff --git a/streamer/examples/video_decoder/cpp/README_EN.md b/streamer/examples/video_decoder/cpp/README_EN.md
index d7a0437b7..285493fe5 100644
--- a/streamer/examples/video_decoder/cpp/README_EN.md
+++ b/streamer/examples/video_decoder/cpp/README_EN.md
@@ -15,6 +15,7 @@ make -j
 
 3. Run
 ```
-cp ../streamer_cfg.yml .
+# GPU decoding(gpu.yml) or CPU decoding(cpu.yml)
+cp ../gpu.yml streamer_cfg.yml
 ./video_decoder
 ```
diff --git a/streamer/examples/video_decoder/cpp/cpu.yml b/streamer/examples/video_decoder/cpp/cpu.yml
new file mode 100644
index 000000000..542b701cb
--- /dev/null
+++ b/streamer/examples/video_decoder/cpp/cpu.yml
@@ -0,0 +1,17 @@
+app:
+  type: video_decoder
+  enable-perf-measurement: true
+  perf-measurement-interval-sec: 5
+
+uridecodebin:
+  uri: file:///opt/nvidia/deepstream/deepstream/samples/streams/sample_ride_bike.mov
+
+videoconvert:
+
+capsfilter:
+  caps: video/x-raw,format=(string)BGR
+
+appsink:
+  sync: true
+  max-buffers: 60
+  drop: false
diff --git a/streamer/examples/video_decoder/cpp/streamer_cfg.yml b/streamer/examples/video_decoder/cpp/gpu.yml
similarity index 100%
rename from streamer/examples/video_decoder/cpp/streamer_cfg.yml
rename to streamer/examples/video_decoder/cpp/gpu.yml
diff --git a/streamer/src/gstreamer/types.h b/streamer/src/gstreamer/types.h
index 6f6ff68d1..bb3ba6fbb 100644
--- a/streamer/src/gstreamer/types.h
+++ b/streamer/src/gstreamer/types.h
@@ -14,6 +14,7 @@
 #pragma once
 
 #include "fastdeploy/core/fd_type.h"
+#include "fastdeploy/runtime/enum_variables.h"
 #include "fastdeploy/utils/perf.h"
 #include <gst/gst.h>