GStreamer Android.mk to CMakeList.txt

Question

附件中的代码是来自GStreamer官方网站的Android.mk文件，该文件由NDKBuild构建。我目前已经完成了我的应用程序所需的所有功能，然后我才意识到现有的应用程序(我将从我开发的应用程序中实现功能)是由CMake构建的，并且我在将GStreamer构建文件从Android.mk转换为CMakeList.txt时遇到了困难。我知道这不是一个编码服务平台，但这是我的项目的最后一步，我真的需要你的帮助。

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE    := tutorial-3
LOCAL_SRC_FILES := tutorial-3.c dummy.cpp
LOCAL_SHARED_LIBRARIES := gstreamer_android
LOCAL_LDLIBS := -llog -landroid
include $(BUILD_SHARED_LIBRARY)

ifndef GSTREAMER_ROOT_ANDROID
$(error GSTREAMER_ROOT_ANDROID is not defined!)
endif

ifeq ($(TARGET_ARCH_ABI),armeabi)
GSTREAMER_ROOT        := $(GSTREAMER_ROOT_ANDROID)/arm
else ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
GSTREAMER_ROOT        := $(GSTREAMER_ROOT_ANDROID)/armv7
else ifeq ($(TARGET_ARCH_ABI),arm64-v8a)
GSTREAMER_ROOT        := $(GSTREAMER_ROOT_ANDROID)/arm64
else ifeq ($(TARGET_ARCH_ABI),x86)
GSTREAMER_ROOT        := $(GSTREAMER_ROOT_ANDROID)/x86
else ifeq ($(TARGET_ARCH_ABI),x86_64)
GSTREAMER_ROOT        := $(GSTREAMER_ROOT_ANDROID)/x86_64
else
$(error Target arch ABI not supported: $(TARGET_ARCH_ABI))
endif

GSTREAMER_NDK_BUILD_PATH  := $(GSTREAMER_ROOT)/share/gst-android/ndk-build/
include $(GSTREAMER_NDK_BUILD_PATH)/plugins.mk
GSTREAMER_PLUGINS         := $(GSTREAMER_PLUGINS_CORE) $(GSTREAMER_PLUGINS_SYS) $(GSTREAMER_PLUGINS_EFFECTS) $(GSTREAMER_PLUGINS_CODECS_RESTRICTED) $(GSTREAMER_PLUGINS_PLAYBACK) $(GSTREAMER_PLUGINS_CODECS) $(GSTREAMER_PLUGINS_NET)
GSTREAMER_EXTRA_DEPS      := gstreamer-video-1.0 gobject-2.0
GSTREAMER_EXTRA_LIBS      := -liconv
include $(GSTREAMER_NDK_BUILD_PATH)/gstreamer-1.0.mk

Answer 1

如果我理解正确的话，您需要为另一个平台构建gstreamer。您正尝试使用Cmake执行此操作。这曾经是为Windows构建它的方式，但已经被基于meason框架的构建所取代。您可以在这里阅读更多内容https://github.com/GStreamer/gst-build

积极的消息是，与使用Cmake相比，使用meason构建gstreamer真的很简单。

希望这能有所帮助。