Android本地視頻播放器開發--SDL編譯

其實1.3以後的版本就添加了android的支持，所以下載完源碼後，在SDL目錄下創建一個jni的目錄，然後將原先SDL目錄下面的文件以及文件夾都拷貝到jni目錄下面，在jni目錄下面我們會看見一個android.mk的文件,這就是官方給我們編寫的編譯文件，由於手機基本上都是使用的arm編譯器，所以我在裡面添加了LOCAL_ARM_MODE=arm，模塊的編譯使用arm編譯器來編譯，具體的內容如下:
[cpp] ###########################  
#  
# SDL shared library  
#  
###########################  
 
include $(CLEAR_VARS) 
 
LOCAL_MODULE := SDL2 
LOCAL_ARM_MODE=arm 
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include 
 
LOCAL_SRC_FILES := \ 
        $(subst $(LOCAL_PATH)/,, \ 
        $(wildcard $(LOCAL_PATH)/src/*.c) \
        $(wildcard $(LOCAL_PATH)/src/audio/*.c) \
        $(wildcard $(LOCAL_PATH)/src/audio/android/*.c) \
        $(wildcard $(LOCAL_PATH)/src/audio/dummy/*.c) \
        $(LOCAL_PATH)/src/atomic/SDL_atomic.c \
        $(LOCAL_PATH)/src/atomic/SDL_spinlock.c.arm \
        $(wildcard $(LOCAL_PATH)/src/core/android/*.cpp) \
        $(wildcard $(LOCAL_PATH)/src/cpuinfo/*.c) \
        $(wildcard $(LOCAL_PATH)/src/events/*.c) \
        $(wildcard $(LOCAL_PATH)/src/file/*.c) \
        $(wildcard $(LOCAL_PATH)/src/haptic/*.c) \
        $(wildcard $(LOCAL_PATH)/src/haptic/dummy/*.c) \
        $(wildcard $(LOCAL_PATH)/src/joystick/*.c) \
        $(wildcard $(LOCAL_PATH)/src/joystick/android/*.c) \
        $(wildcard $(LOCAL_PATH)/src/loadso/dlopen/*.c) \
        $(wildcard $(LOCAL_PATH)/src/power/*.c) \
        $(wildcard $(LOCAL_PATH)/src/power/android/*.c) \
        $(wildcard $(LOCAL_PATH)/src/render/*.c) \
        $(wildcard $(LOCAL_PATH)/src/render/*/*.c) \ 
        $(wildcard $(LOCAL_PATH)/src/stdlib/*.c) \ 
        $(wildcard $(LOCAL_PATH)/src/thread/*.c) \ 
        $(wildcard $(LOCAL_PATH)/src/thread/pthread/*.c) \ 
        $(wildcard $(LOCAL_PATH)/src/timer/*.c) \ 
        $(wildcard $(LOCAL_PATH)/src/timer/unix/*.c) \ 
        $(wildcard $(LOCAL_PATH)/src/video/*.c) \ 
        $(wildcard $(LOCAL_PATH)/src/video/android/*.c)) 
 
LOCAL_CFLAGS += -DGL_GLEXT_PROTOTYPES 
LOCAL_LDLIBS := -ldl -lGLESv1_CM -lGLESv2 -llog 
 
include $(BUILD_SHARED_LIBRARY) 

###########################
#
# SDL shared library
#
###########################

include $(CLEAR_VARS)

LOCAL_MODULE := SDL2
LOCAL_ARM_MODE=arm
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include

LOCAL_SRC_FILES := \
        $(subst $(LOCAL_PATH)/,, \
        $(wildcard $(LOCAL_PATH)/src/*.c) \
        $(wildcard $(LOCAL_PATH)/src/audio/*.c) \
        $(wildcard $(LOCAL_PATH)/src/audio/android/*.c) \
        $(wildcard $(LOCAL_PATH)/src/audio/dummy/*.c) \
        $(LOCAL_PATH)/src/atomic/SDL_atomic.c \
        $(LOCAL_PATH)/src/atomic/SDL_spinlock.c.arm \
        $(wildcard $(LOCAL_PATH)/src/core/android/*.cpp) \
        $(wildcard $(LOCAL_PATH)/src/cpuinfo/*.c) \
        $(wildcard $(LOCAL_PATH)/src/events/*.c) \
        $(wildcard $(LOCAL_PATH)/src/file/*.c) \
        $(wildcard $(LOCAL_PATH)/src/haptic/*.c) \
        $(wildcard $(LOCAL_PATH)/src/haptic/dummy/*.c) \
        $(wildcard $(LOCAL_PATH)/src/joystick/*.c) \
        $(wildcard $(LOCAL_PATH)/src/joystick/android/*.c) \
        $(wildcard $(LOCAL_PATH)/src/loadso/dlopen/*.c) \
        $(wildcard $(LOCAL_PATH)/src/power/*.c) \
        $(wildcard $(LOCAL_PATH)/src/power/android/*.c) \
        $(wildcard $(LOCAL_PATH)/src/render/*.c) \
        $(wildcard $(LOCAL_PATH)/src/render/*/*.c) \
        $(wildcard $(LOCAL_PATH)/src/stdlib/*.c) \
        $(wildcard $(LOCAL_PATH)/src/thread/*.c) \
        $(wildcard $(LOCAL_PATH)/src/thread/pthread/*.c) \
        $(wildcard $(LOCAL_PATH)/src/timer/*.c) \
        $(wildcard $(LOCAL_PATH)/src/timer/unix/*.c) \
        $(wildcard $(LOCAL_PATH)/src/video/*.c) \
        $(wildcard $(LOCAL_PATH)/src/video/android/*.c))

LOCAL_CFLAGS += -DGL_GLEXT_PROTOTYPES
LOCAL_LDLIBS := -ldl -lGLESv1_CM -lGLESv2 -llog

include $(BUILD_SHARED_LIBRARY)三、如果直接編譯的話會提示如下錯誤
[cpp]  /home/SDL/jni/src/core/android/SDL_android.cpp:30:21: fatal error: EGL/egl.h: No such file or directory 

/home/SDL/jni/src/core/android/SDL_android.cpp:30:21: fatal error: EGL/egl.h: No such file or directory
查看EGL的支持是在2.3版本以上，所以我們需要添加平台的支持，所以需要在jni目錄下面創建一個Application.mk文件來指定編譯平台，內容如下:
[cpp]  APP_ABI := armeabi 
APP_PLATFORM := android-9 

APP_ABI := armeabi
APP_PLATFORM := android-9四、在jni目錄終端下運行ndk-build，就會編譯出libSDL2.so，編譯過程如下:
[cpp]  root@zhangjie:/home/SDL/jni# ndk-build 
Compile arm    : SDL2 <= SDL_assert.c 
Compile arm    : SDL2 <= SDL.c 
Compile arm    : SDL2 <= SDL_error.c 
Compile arm    : SDL2 <= SDL_fatal.c 
Compile arm    : SDL2 <= SDL_hints.c 
Compile arm    : SDL2 <= SDL_log.c 
Compile arm    : SDL2 <= SDL_audio.c 
Compile arm    : SDL2 <= SDL_audiocvt.c 
Compile arm    : SDL2 <= SDL_audiodev.c 
Compile arm    : SDL2 <= SDL_audiotypecvt.c 
Compile arm    : SDL2 <= SDL_mixer.c 
Compile arm    : SDL2 <= SDL_wave.c 
Compile arm    : SDL2 <= SDL_androidaudio.c 
Compile arm    : SDL2 <= SDL_dummyaudio.c 
Compile arm    : SDL2 <= SDL_atomic.c 
Compile arm    : SDL2 <= SDL_spinlock.c 
Compile++ arm    : SDL2 <= SDL_android.cpp 
Compile arm    : SDL2 <= SDL_cpuinfo.c 
Compile arm    : SDL2 <= SDL_clipboardevents.c 
Compile arm    : SDL2 <= SDL_dropevents.c 
Compile arm    : SDL2 <= SDL_events.c 
Compile arm    : SDL2 <= SDL_gesture.c 
Compile arm    : SDL2 <= SDL_keyboard.c 
Compile arm    : SDL2 <= SDL_mouse.c 
Compile arm    : SDL2 <= SDL_quit.c 
Compile arm    : SDL2 <= SDL_touch.c 
Compile arm    : SDL2 <= SDL_windowevents.c 
Compile arm    : SDL2 <= SDL_rwops.c 
Compile arm    : SDL2 <= SDL_haptic.c 
Compile arm    : SDL2 <= SDL_syshaptic.c 
Compile arm    : SDL2 <= SDL_gamecontroller.c 
Compile arm    : SDL2 <= SDL_joystick.c 
Compile arm    : SDL2 <= SDL_sysjoystick.c 
Compile arm    : SDL2 <= SDL_sysloadso.c 
Compile arm    : SDL2 <= SDL_power.c 
Compile arm    : SDL2 <= SDL_syspower.c 
Compile arm    : SDL2 <= SDL_render.c 
Compile arm    : SDL2 <= SDL_yuv_mmx.c 
Compile arm    : SDL2 <= SDL_yuv_sw.c 
Compile arm    : SDL2 <= SDL_render_d3d.c 
Compile arm    : SDL2 <= SDL_render_gles2.c 
Compile arm    : SDL2 <= SDL_shaders_gles2.c 
Compile arm    : SDL2 <= SDL_render_gles.c 
Compile arm    : SDL2 <= SDL_render_gl.c 
Compile arm    : SDL2 <= SDL_shaders_gl.c 
Compile arm    : SDL2 <= SDL_render_psp.c 
Compile arm    : SDL2 <= SDL_blendfillrect.c 
Compile arm    : SDL2 <= SDL_blendline.c 
Compile arm    : SDL2 <= SDL_blendpoint.c 
Compile arm    : SDL2 <= SDL_drawline.c 
Compile arm    : SDL2 <= SDL_drawpoint.c 
Compile arm    : SDL2 <= SDL_render_sw.c 
Compile arm    : SDL2 <= SDL_rotate.c 
Compile arm    : SDL2 <= SDL_getenv.c 
Compile arm    : SDL2 <= SDL_iconv.c 
Compile arm    : SDL2 <= SDL_malloc.c 
Compile arm    : SDL2 <= SDL_qsort.c 
Compile arm    : SDL2 <= SDL_stdlib.c 
Compile arm    : SDL2 <= SDL_string.c 
Compile arm    : SDL2 <= SDL_thread.c 
Compile arm    : SDL2 <= SDL_syscond.c 
Compile arm    : SDL2 <= SDL_sysmutex.c 
Compile arm    : SDL2 <= SDL_syssem.c 
Compile arm    : SDL2 <= SDL_systhread.c 
Compile arm    : SDL2 <= SDL_timer.c 
Compile arm    : SDL2 <= SDL_systimer.c 
Compile arm    : SDL2 <= SDL_blit_0.c 
Compile arm    : SDL2 <= SDL_blit_1.c 
Compile arm    : SDL2 <= SDL_blit_A.c 
Compile arm    : SDL2 <= SDL_blit_auto.c 
Compile arm    : SDL2 <= SDL_blit.c 
Compile arm    : SDL2 <= SDL_blit_copy.c 
Compile arm    : SDL2 <= SDL_blit_N.c 
Compile arm    : SDL2 <= SDL_blit_slow.c 
Compile arm    : SDL2 <= SDL_bmp.c 
Compile arm    : SDL2 <= SDL_clipboard.c 
Compile arm    : SDL2 <= SDL_fillrect.c 
Compile arm    : SDL2 <= SDL_pixels.c 
Compile arm    : SDL2 <= SDL_rect.c 
Compile arm    : SDL2 <= SDL_RLEaccel.c 
Compile arm    : SDL2 <= SDL_shape.c 
Compile arm    : SDL2 <= SDL_stretch.c 
Compile arm    : SDL2 <= SDL_surface.c 
Compile arm    : SDL2 <= SDL_video.c 
Compile arm    : SDL2 <= SDL_androidclipboard.c 
Compile arm    : SDL2 <= SDL_androidevents.c 
Compile arm    : SDL2 <= SDL_androidgl.c 
Compile arm    : SDL2 <= SDL_androidkeyboard.c 
Compile arm    : SDL2 <= SDL_androidtouch.c 
Compile arm    : SDL2 <= SDL_androidvideo.c 
Compile arm    : SDL2 <= SDL_androidwindow.c 
StaticLibrary  : libstdc++.a 
SharedLibrary  : libSDL2.so 
Install        : libSDL2.so => libs/armeabi/libSDL2.so 

root@zhangjie:/home/SDL/jni# ndk-build
Compile arm    : SDL2 <= SDL_assert.c
Compile arm    : SDL2 <= SDL.c
Compile arm    : SDL2 <= SDL_error.c
Compile arm    : SDL2 <= SDL_fatal.c
Compile arm    : SDL2 <= SDL_hints.c
Compile arm    : SDL2 <= SDL_log.c
Compile arm    : SDL2 <= SDL_audio.c
Compile arm    : SDL2 <= SDL_audiocvt.c
Compile arm    : SDL2 <= SDL_audiodev.c
Compile arm    : SDL2 <= SDL_audiotypecvt.c
Compile arm    : SDL2 <= SDL_mixer.c
Compile arm    : SDL2 <= SDL_wave.c
Compile arm    : SDL2 <= SDL_androidaudio.c
Compile arm    : SDL2 <= SDL_dummyaudio.c
Compile arm    : SDL2 <= SDL_atomic.c
Compile arm    : SDL2 <= SDL_spinlock.c
Compile++ arm    : SDL2 <= SDL_android.cpp
Compile arm    : SDL2 <= SDL_cpuinfo.c
Compile arm    : SDL2 <= SDL_clipboardevents.c
Compile arm    : SDL2 <= SDL_dropevents.c
Compile arm    : SDL2 <= SDL_events.c
Compile arm    : SDL2 <= SDL_gesture.c
Compile arm    : SDL2 <= SDL_keyboard.c
Compile arm    : SDL2 <= SDL_mouse.c
Compile arm    : SDL2 <= SDL_quit.c
Compile arm    : SDL2 <= SDL_touch.c
Compile arm    : SDL2 <= SDL_windowevents.c
Compile arm    : SDL2 <= SDL_rwops.c
Compile arm    : SDL2 <= SDL_haptic.c
Compile arm    : SDL2 <= SDL_syshaptic.c
Compile arm    : SDL2 <= SDL_gamecontroller.c
Compile arm    : SDL2 <= SDL_joystick.c
Compile arm    : SDL2 <= SDL_sysjoystick.c
Compile arm    : SDL2 <= SDL_sysloadso.c
Compile arm    : SDL2 <= SDL_power.c
Compile arm    : SDL2 <= SDL_syspower.c
Compile arm    : SDL2 <= SDL_render.c
Compile arm    : SDL2 <= SDL_yuv_mmx.c
Compile arm    : SDL2 <= SDL_yuv_sw.c
Compile arm    : SDL2 <= SDL_render_d3d.c
Compile arm    : SDL2 <= SDL_render_gles2.c
Compile arm    : SDL2 <= SDL_shaders_gles2.c
Compile arm    : SDL2 <= SDL_render_gles.c
Compile arm    : SDL2 <= SDL_render_gl.c
Compile arm    : SDL2 <= SDL_shaders_gl.c
Compile arm    : SDL2 <= SDL_render_psp.c
Compile arm    : SDL2 <= SDL_blendfillrect.c
Compile arm    : SDL2 <= SDL_blendline.c
Compile arm    : SDL2 <= SDL_blendpoint.c
Compile arm    : SDL2 <= SDL_drawline.c
Compile arm    : SDL2 <= SDL_drawpoint.c
Compile arm    : SDL2 <= SDL_render_sw.c
Compile arm    : SDL2 <= SDL_rotate.c
Compile arm    : SDL2 <= SDL_getenv.c
Compile arm    : SDL2 <= SDL_iconv.c
Compile arm    : SDL2 <= SDL_malloc.c
Compile arm    : SDL2 <= SDL_qsort.c
Compile arm    : SDL2 <= SDL_stdlib.c
Compile arm    : SDL2 <= SDL_string.c
Compile arm    : SDL2 <= SDL_thread.c
Compile arm    : SDL2 <= SDL_syscond.c
Compile arm    : SDL2 <= SDL_sysmutex.c
Compile arm    : SDL2 <= SDL_syssem.c
Compile arm    : SDL2 <= SDL_systhread.c
Compile arm    : SDL2 <= SDL_timer.c
Compile arm    : SDL2 <= SDL_systimer.c
Compile arm    : SDL2 <= SDL_blit_0.c
Compile arm    : SDL2 <= SDL_blit_1.c
Compile arm    : SDL2 <= SDL_blit_A.c
Compile arm    : SDL2 <= SDL_blit_auto.c
Compile arm    : SDL2 <= SDL_blit.c
Compile arm    : SDL2 <= SDL_blit_copy.c
Compile arm    : SDL2 <= SDL_blit_N.c
Compile arm    : SDL2 <= SDL_blit_slow.c
Compile arm    : SDL2 <= SDL_bmp.c
Compile arm    : SDL2 <= SDL_clipboard.c
Compile arm    : SDL2 <= SDL_fillrect.c
Compile arm    : SDL2 <= SDL_pixels.c
Compile arm    : SDL2 <= SDL_rect.c
Compile arm    : SDL2 <= SDL_RLEaccel.c
Compile arm    : SDL2 <= SDL_shape.c
Compile arm    : SDL2 <= SDL_stretch.c
Compile arm    : SDL2 <= SDL_surface.c
Compile arm    : SDL2 <= SDL_video.c
Compile arm    : SDL2 <= SDL_androidclipboard.c
Compile arm    : SDL2 <= SDL_androidevents.c
Compile arm    : SDL2 <= SDL_androidgl.c
Compile arm    : SDL2 <= SDL_androidkeyboard.c
Compile arm    : SDL2 <= SDL_androidtouch.c
Compile arm    : SDL2 <= SDL_androidvideo.c
Compile arm    : SDL2 <= SDL_androidwindow.c
StaticLibrary  : libstdc++.a
SharedLibrary  : libSDL2.so
Install        : libSDL2.so => libs/armeabi/libSDL2.so
編譯出sdl庫後，我們就可以調用它的相關函數來實現我們的功能了。