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FFmpeg 移植 Android

阅读更多

 

近期项目需要解析苹果的HLS流媒体协议,而FFmpeg从0.11.1“Happiness”版本开始,才增加了对HLS协议的支持。目前网上关于FFmpeg编译移植的文章有很多,但大多都是对旧版本的说明。新版本的源码对很多地方做了改动,包括一些变量名、常量名、函数名、函数参数、结构体等,所以在用旧版本的JNI接口时,需要相应地做出改动。这个编译移植工作确实花了本人不少时间,现在总结一下,希望能给到大家一些帮助。说明一点,本文阐述的不一定都正确,大家在编译过程中,难免会遇到各种各样的错误,可以提出来,一起讨论。

 

编译环境:Ubuntu 12.04、Android NDK r8

 

一、下载源码、新建工程

下载地址:http://ffmpeg.org/download.html ,下载最新ffmpeg-0.11.1压缩包。

在$NDK_HOME/samples/目录下(我的是/root/Develop/android-ndk-r8/samples/)创建一个FFMPEG-0.11目录,在里面新建一个jni目录,然后把ffmpeg源码解压放在jni里面,源码的文件夹重命名为libffmpeg,所以最后源码的路径是:

/root/Develop/android-ndk-r8/samples/FFMPEG-0.11/jni/libffmpeg
  

二、配置源代码

1. 创建config_common.sh脚本

在jni目录下创建一个config_common.sh,内容如下:

 

#!/bin/bash

FFCONFIG_COMMON='
	--enable-version3
	--disable-gpl
	--disable-nonfree
	--disable-debug
	--disable-ffmpeg
	--disable-ffplay
	--disable-ffserver
	--disable-ffprobe
	--disable-encoders
	--disable-muxers
	--disable-devices
	--disable-protocols
	--enable-protocol=file
	--disable-swscale
	--disable-avfilter
	--enable-network
	--disable-avdevice
	--enable-parsers
	--disable-decoders
	--disable-demuxers
	--enable-demuxer=matroska
	--disable-demuxer=rm
	--disable-demuxer=avi
	--disable-demuxer=flv
	--disable-demuxer=mov
	--enable-demuxer=mp3
	--enable-demuxer=mpegps
	--enable-demuxer=mpegvideo
	--enable-demuxer=asf
	--enable-decoder=aac
	--enable-decoder=ac3
	--enable-decoder=dca
	--enable-decoder=flv
	--disable-decoder=h263
	--disable-decoder=h264
	--enable-decoder=svq3
	--enable-decoder=amrnb
	--enable-decoder=nellymoser
	--enable-decoder=pcm_alaw
	--enable-decoder=pcm_dvd
	--enable-decoder=pcm_mulaw
	--enable-decoder=pcm_s16be
	--enable-decoder=pcm_s16le
	--enable-decoder=pcm_s16le_planar
	--enable-decoder=pcm_s24be
	--enable-decoder=pcm_s24daud
	--enable-decoder=pcm_s24le
	--enable-decoder=pcm_s32be
	--enable-decoder=pcm_s32le
	--enable-decoder=pcm_s8
	--enable-decoder=pcm_u16be
	--enable-decoder=pcm_u16le
	--enable-decoder=pcm_u24be
	--enable-decoder=pcm_u24le
	--enable-decoder=pcm_u32be
	--enable-decoder=pcm_u32le
	--enable-decoder=atrac3
	--enable-decoder=pcm_u8
	--enable-decoder=sipr
	--enable-decoder=mjpeg
	--enable-decoder=mp1
	--enable-decoder=mp2
	--enable-decoder=mp3
	--enable-decoder=tscc
	--enable-decoder=mpeg1video
	--enable-decoder=mpeg2video
	--enable-decoder=mpeg4
	--enable-decoder=ra_144
	--enable-decoder=ra_288
	--enable-decoder=cook
	--enable-decoder=rv10
	--enable-decoder=rv20
	--enable-decoder=rv30
	--enable-decoder=rv40
	--enable-decoder=wmav1
	--enable-decoder=wmav2
	--enable-decoder=wmapro
	--disable-decoder=wmv1
	--disable-decoder=wmv2
	--disable-decoder=wmv3
	--enable-decoder=vc1
	--enable-decoder=msmpeg4v1
	--enable-decoder=msmpeg4v2
	--enable-decoder=msmpeg4v3
'
  

可以根据需要自行配置以上参数。

 

2. 创建config.sh脚本

在jni目录下创建一个config.sh,内容如下:

 

#!/bin/bash

source config_common.sh            /*这里执行上面的config_common.sh脚本*/

cd libffmpeg               /*进入libffmpeg目录*/

PREBUILT=/root/Develop/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86
PLATFORM=/root/Develop/android-ndk-r8/platforms/android-14/arch-arm

./configure --target-os=linux \
	--arch=arm \
	--enable-shared \
	--enable-cross-compile \
	--cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
	--cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
	--strip=$PREBUILT/bin/arm-linux-androideabi-strip \
	--extra-cflags="-fPIC -DANDROID" \
	--extra-ldflags="-Wl,-T,$PREBUILT/arm-linux-androideabi/lib/ldscripts/armelf_linux_eabi.x -Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/crtbegin.o $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/crtend.o -lc -lm -ldl" \
	$FFCONFIG_COMMON


cd ..                       /*返回jni目录*/
ndk-build clean
  

3.  执行config.sh脚本

然后打开终端,执行以下命令:

 

$chmod +x config.sh /*赋予config.sh执行权限*/
$./config.sh
  

如果配置正确的话,显示出来的最后两行是这样的:

 

License:LGPL version 3 or later
Creating config.mak and config.h...

若出现WARNING:/root/Develop/android-ndk-8/.............../arm-linux-androideabi-pkg-config not found, library detection may fail. 可忽略。

 

4. 修改config.h

进入jni/libffmpeg/目录,在刚刚生成的config.h中找到这句:

 

#define restrict restrict

 

因为Android的gcc并不认得restrict这个关键字,所以把它改写成:

 

#define restrict

 

如果需要联网的话,还需要将config.h中的以下定义置为1:

 

#define CONFIG_NETWORK 1
#define CONFIG_HTTP_PROTOCOL 1
#define CONFIG_HTTPPROXY_PROTOCOL 1
#define CONFIG_HTTPS_PROTOCOL 1
#define CONFIG_TCP_PROTOCOL 1
#define CONFIG_UDP_PROTOCOL 1
#define HAVE_STRUCT_SOCKADDR_STORAGE 1
#define HAVE_STRUCT_ADDRINFO 1
#define HAVE_SOCKLEN_T 1

#define HAVE_INET_ATON 0

 

相应的,config.mak中也需要修改为:

 

CONFIG_NETWORK=yes
CONFIG_HTTP_PROTOCOL=yes
CONFIG_HTTPPROXY_PROTOCOL=yes
CONFIG_HTTPS_PROTOCOL=yes 
CONFIG_TCP_PROTOCOL=yes
CONFIG_UDP_PROTOCOL=yes
HAVE_STRUCT_SOCKADDR_STORAGE=yes
HAVE_STRUCT_ADDRINFO=yes
HAVE_SOCKLEN_T=yes

!HAVE_INET_ATON=yes
  

5. 修改libm.h文件

将/libavutil/libm.h中所有的static函数全部注释掉。

 

6. 修改Makefile文件

分別修改libavcodec、libavfilter、libavformat、libavutil、libpostproc和libswscale目录下的Makefile文件,将下面一句注释掉:

 

include $(SUBDIR)../config.mak
  

7. 新建av.mk脚本

在/jni/libffmpeg下建立一个脚本文件av.mk,內容如下:

 

# LOCAL_PATH is one of libavutil, libavcodec, libavformat, or libswscale

#include $(LOCAL_PATH)/../config-$(TARGET_ARCH).mak
include $(LOCAL_PATH)/../config.mak

OBJS :=
OBJS-yes :=
MMX-OBJS-yes :=
include $(LOCAL_PATH)/Makefile
ifdef ADDITION_INC
include $(ADDITION_INC)
endif

# collect objects
OBJS-$(HAVE_MMX) += $(MMX-OBJS-yes)
OBJS += $(OBJS-yes)

FFNAME := lib$(NAME)
FFLIBS := $(foreach,NAME,$(FFLIBS),lib$(NAME))
FFCFLAGS = -DHAVE_AV_CONFIG_H $(CFLAGS)
FFCFLAGS += -DTARGET_CONFIG=\"config-$(TARGET_ARCH).h\"

ALL_S_FILES := $(wildcard $(LOCAL_PATH)/$(TARGET_ARCH)/*.S)
ALL_S_FILES := $(addprefix $(TARGET_ARCH)/, $(notdir $(ALL_S_FILES)))

ifneq ($(ALL_S_FILES),)
ALL_S_OBJS := $(patsubst %.S,%.o,$(ALL_S_FILES))
C_OBJS := $(filter-out $(ALL_S_OBJS),$(OBJS))
S_OBJS := $(filter $(ALL_S_OBJS),$(OBJS))
else
C_OBJS := $(OBJS)
S_OBJS :=
endif

C_FILES := $(patsubst %.o,%.c,$(C_OBJS))
S_FILES := $(patsubst %.o,%.S,$(S_OBJS))

FFFILES := $(sort $(S_FILES)) $(sort $(C_FILES))
  

8. 新建Android.mk脚本

在jni目录下新建Android.mk,內容如下:

 

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES := ExportJNI.cpp ExportPlayer.cpp PacketQueue.cpp /*其中ExportJNI.cpp是我编写的JNI接口*/
LOCAL_STATIC_LIBRARIES := libavformat libavcodec libswscale libavutil libpostproc ffmpeg libsubtitle /*注意Libraries的顺序*/
LOCAL_MODULE := export /*最终生成libexport.so*/ 
LOCAL_ARM_MODE := arm
LOCAL_CFLAGS := -D__STDC_CONSTANT_MACROS -I$(LOCAL_PATH)/libffmpeg/ -I$(LOCAL_PATH)/libsubtitle/
LOCAL_LDLIBS := -llog
include $(BUILD_SHARED_LIBRARY)
include $(call all-makefiles-under,$(LOCAL_PATH))

 

在jni/libffmpeg目录下新建Android.mk:

 

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES := settings.c MyLog.cpp       /*如果不需要打印输出等辅助功能,这行可删去*/
LOCAL_MODULE := ffmpeg
LOCAL_ARM_MODE := arm
include $(BUILD_STATIC_LIBRARY)
include $(call all-makefiles-under,$(LOCAL_PATH))

  
在jni/libffmpeg/libavformat目录下新建Android.mk:

 

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
include $(LOCAL_PATH)/../av.mk
LOCAL_SRC_FILES := $(FFFILES)
LOCAL_C_INCLUDES := \
$(LOCAL_PATH) \
$(LOCAL_PATH)/..
LOCAL_CFLAGS += $(FFCFLAGS)
LOCAL_CFLAGS += -include "string.h" -Dipv6mr_interface=ipv6mr_ifindex
LOCAL_LDLIBS := -lz
LOCAL_STATIC_LIBRARIES := $(FFLIBS)
LOCAL_MODULE := $(FFNAME)
LOCAL_ARM_MODE := arm
include $(BUILD_STATIC_LIBRARY)
   

在jni/libffmpeg/libavcodec目录下新建Android.mk:

 

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
ADDITION_INC := $(LOCAL_PATH)/arm/Makefile
include $(LOCAL_PATH)/../av.mk
ADDITION_INC := 

LOCAL_SRC_FILES := $(FFFILES)

LOCAL_C_INCLUDES := \
$(LOCAL_PATH) \
$(LOCAL_PATH)/..
LOCAL_CFLAGS += $(FFCFLAGS)
ifeq ($(TARGET_ARCH_ABI),armeabi)
LOCAL_CFLAGS += -DUSE_INT
endif

LOCAL_LDLIBS := -lz
LOCAL_STATIC_LIBRARIES := $(FFLIBS)
LOCAL_MODULE := $(FFNAME)
LOCAL_ARM_MODE := arm
include $(BUILD_STATIC_LIBRARY)
  

在libavfilter、libavutil、libpostproc和libswscale目录下都分別新建Android.mk:

 

LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
include$(LOCAL_PATH)/../av.mk
LOCAL_SRC_FILES:= $(FFFILES)
LOCAL_C_INCLUDES:= \
$(LOCAL_PATH) \
$(LOCAL_PATH)/..
LOCAL_CFLAGS+= $(FFCFLAGS)
LOCAL_STATIC_LIBRARIES:= $(FFLIBS)
LOCAL_MODULE:= $(FFNAME)
include$(BUILD_STATIC_LIBRARY)
  

9. 新建Application.mk脚本

在jni目录下创建一个Application.mk,内容如下:

 

APP_STL := stlport_static
APP_ABI := armeabi

 

三、 NDK编译

在FFMPEG-0.11/下执行ndk-build:

 

$/ FFMPEG-0.11# ndk-build
  

编译过程需要十分钟左右,最后会在FFMPEG-0.11/obj/local/armeabi/目录下生成libavcodec.a、libavformat.a、libavutil.a、libffmpeg.a、libswscale.a和libpostproc.a以及libexport.so,在FFMPEG-0.11/libs/armeabi/目录下生成libexport.so。

 

 

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37 楼 杰迪-android 2012-11-01  
博主,你好,我编的是1.0版,前面一直没问题,到最后编。so出错:

Compile arm    : ffmpeg <= fifo.c
Compile arm    : ffmpeg <= file.c
Compile arm    : ffmpeg <= imgutils.c
Compile arm    : ffmpeg <= intfloat_readwrite.c
make: *** 没有规则可以创建“/home/wu/android-ndk-r6/samples/ffmpeg/obj/local/armeabi/objs/ffmpeg/libavutil/inverse.o”需要的目标“/home/wu/android-ndk-r6/samples/ffmpeg/jni/libavutil/inverse.c”。 停止。

不知道什么原因
36 楼 n124745678 2012-09-17  
superonion 写道
n124745678 写道
樓主,我在執行.sh時出現不同的錯誤

License: LGPL version 3 or later
Creating config.mak and config.h...

WARNING: /home/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-pkg-config not found, library detection may fail.
Android NDK: Could not find application project directory !   
Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.   
/home/android-ndk-r8/build/core/build-local.mk:130: *** Android NDK: Aborting    .  Stop.


其他設定都是一樣的,可是還是發生之前的錯誤,不知道樓主公開jni的source code。另外一提我的os是fedora不知道是否有關系


这个问题我没遇到过,貌似网上有解决办法。。


樓主 先前的問題似乎解決了,但是這些遇到兩個問題
1.config.h裡的HAVE_ISATTY若不設為0,似乎會找不到function
2.若是要聯網,開啟config.h裡的設定後,libavformat/tcp.c,也似乎會找不到closesocket這個function
不知道樓主是否有遇到這些問題
35 楼 superonion 2012-09-17  
n124745678 写道
樓主,我在執行.sh時出現不同的錯誤

License: LGPL version 3 or later
Creating config.mak and config.h...

WARNING: /home/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-pkg-config not found, library detection may fail.
Android NDK: Could not find application project directory !   
Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.   
/home/android-ndk-r8/build/core/build-local.mk:130: *** Android NDK: Aborting    .  Stop.


其他設定都是一樣的,可是還是發生之前的錯誤,不知道樓主公開jni的source code。另外一提我的os是fedora不知道是否有關系


这个问题我没遇到过,貌似网上有解决办法。。
34 楼 n124745678 2012-09-17  
樓主,我在執行.sh時出現不同的錯誤

License: LGPL version 3 or later
Creating config.mak and config.h...

WARNING: /home/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-pkg-config not found, library detection may fail.
Android NDK: Could not find application project directory !   
Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.   
/home/android-ndk-r8/build/core/build-local.mk:130: *** Android NDK: Aborting    .  Stop.


其他設定都是一樣的,可是還是發生之前的錯誤,不知道樓主公開jni的source code。另外一提我的os是fedora不知道是否有關系

33 楼 9774124 2012-09-16  
楼主,我问题还是没解决,我的系统是ubuntu12.04 64位的 编译环境。
你能不能发份你编译的通过ffmpeg工程给我,JNI给个HelloWorld的就可以了 我邮箱:691684@qq.com ,谢谢了

我就写了一份:helloWord.c

#include<jni.h>
#include<libavcodec/avcodec.h>
#include<libavformat/avformat.h>
#include<string.h>
JNIEXPORT jstring JNICALL Java_lichunxia_android_ffmpegtest001_MainActivity_mediaPlayer(
JNIEnv *env, jobject obj) {
av_register_all();
return (*env)->NewStringUTF(env, "调用ffmpeg里的函数av_register_all()成功!");
}


还是报有些东西没定义错误

/home/liu/workspace/ffmpeg/jni/libffmpeg/libavcodec/utils.c:1771: undefined reference to `ff_truemotion2_decoder'
/home/liu/workspace/ffmpeg/jni/libffmpeg/libavcodec/utils.c:1771: undefined reference to `ff_fraps_decoder'
/home/liu/workspace/ffmpeg/jni/libffmpeg/libavcodec/utils.c:1771: undefined reference to `ff_exr_decoder'
./obj/local/armeabi/libavcodec.a(dsputil_init_arm.o): In function `ff_dsputil_init_arm':
/home/liu/workspace/ffmpeg/jni/libffmpeg/libavcodec/arm/dsputil_init_arm.c:122: undefined reference to `ff_dsputil_init_armv5te'
./obj/local/armeabi/libavcodec.a(mpegvideo_arm.o): In function `ff_MPV_common_init_arm':
/home/liu/workspace/ffmpeg/jni/libffmpeg/libavcodec/arm/mpegvideo_arm.c:47: undefined reference to `ff_MPV_common_init_armv5te'
./obj/local/armeabi/libavutil.a(cpu.o): In function `av_get_cpu_flags':
/home/liu/workspace/ffmpeg/jni/libffmpeg/libavutil/cpu.c:35: undefined reference to `ff_get_cpu_flags_arm'
collect2: ld returned 1 exit status
make: *** [obj/local/armeabi/libexport.so] Error 1
32 楼 9774124 2012-09-15  
mdboy 写道
刚刚贴的代码太长了,把前缀缩短了点,重新贴一遍
SharedLibrary  : libffmpeg-jni.so

obj/local/armeabi/libavformat.a(matroskadec.o): In function `matroska_decode_buffer':

ffmpeg-jni/libffmpeg/libavformat/matroskadec.c:1071: undefined reference to `inflateInit_'

jni/libffmpeg/libavformat/matroskadec.c:1086: undefined reference to `inflate'

jni/libffmpeg/libavformat/matroskadec.c:1079: undefined reference to `inflateEnd'

ffmpeg-jni/libffmpeg/libavformat/matroskadec.c:1091: undefined reference to `inflateEnd'

ffmpeg-obj/local/armeabi/libavformat.a(id3v2.o): In function `ff_id3v2_parse':

jni/libffmpeg/libavformat/id3v2.c:683: undefined reference to `uncompress'

obj/local/armeabi/libavcodec.a(svq3.o): In function `svq3_decode_init':

jni/libffmpeg/libavcodec/svq3.c:915: undefined reference to `uncompress'

obj/local/armeabi/libavcodec.a(tscc.o): In function `decode_end':

jni/libffmpeg/libavcodec/tscc.c:201: undefined reference to `inflateEnd'

obj/local/armeabi/libavcodec.a(tscc.o): In function `decode_frame':

jni/libffmpeg/libavcodec/tscc.c:92: undefined reference to `inflateReset'

jni/libffmpeg/libavcodec/tscc.c:101: undefined reference to `inflate'

obj/local/armeabi/libavcodec.a(tscc.o): In function `decode_init':

jni/libffmpeg/libavcodec/tscc.c:177: undefined reference to `inflateInit_'

obj/local/armeabi/libavcodec.a(dsputil_init_arm.o): In function `ff_dsputil_init_arm':

libffmpeg/libavcodec/arm/dsputil_init_arm.c:122: undefined reference to `ff_dsputil_init_armv5te'

ffmpeg-obj/local/armeabi/libavcodec.a(mpegvideo_arm.o): In function `ff_MPV_common_init_arm':

ffmpeg-jni/libffmpeg/libavcodec/arm/mpegvideo_arm.c:47: undefined reference to `ff_MPV_common_init_armv5te'

ffmpeg-obj/local/armeabi/libavutil.a(cpu.o): In function `av_get_cpu_flags':

jni/libffmpeg/libavutil/cpu.c:35: undefined reference to `ff_get_cpu_flags_arm'
collect2: ld returned 1 exit status
make:
 *** [obj/local/armeabi/libffmpeg-jni.so] Error 1


你的问题解决了吗?
31 楼 9774124 2012-09-15  
BFD: ./libs/armeabi/stxQ2POO: warning: sh_link not set for section `.ARM.exidx'
BFD: ./libs/armeabi/stL7bXOO: warning: sh_link not set for section `.ARM.exidx'
./obj/local/armeabi/libavcodec.a(dsputil_init_arm.o): In function `ff_dsputil_init_arm':
/home/liu/workspace/ffmpeg/jni/libffmpeg/libavcodec/arm/dsputil_init_arm.c:122: undefined reference to `ff_dsputil_init_armv5te'
./obj/local/armeabi/libavcodec.a(mpegvideo_arm.o): In function `ff_MPV_common_init_arm':
/home/liu/workspace/ffmpeg/jni/libffmpeg/libavcodec/arm/mpegvideo_arm.c:47: undefined reference to `ff_MPV_common_init_armv5te'
./obj/local/armeabi/libavutil.a(cpu.o): In function `av_get_cpu_flags':
/home/liu/workspace/ffmpeg/jni/libffmpeg/libavutil/cpu.c:35: undefined reference to `ff_get_cpu_flags_arm'
collect2: ld returned 1 exit status
make: *** [obj/local/armeabi/libexport.so] Error 1
楼主大神请问下这是什么错觉,调了好久不知道哪里的错误。
30 楼 superonion 2012-09-14  
n124745678 写道
樓主你好,按你的步驟竟然發現出錯了,以下是錯誤訊息,麻煩您指導一下
/home/android-ndk-r8/build/core/build-binary.mk:41: *** target file `clean' has both : and :: entries.  Stop.

这个问题我没有发现过哦,你再仔细检查一遍参数。。
29 楼 n124745678 2012-09-14  
樓主你好,按你的步驟竟然發現出錯了,以下是錯誤訊息,麻煩您指導一下
/home/android-ndk-r8/build/core/build-binary.mk:41: *** target file `clean' has both : and :: entries.  Stop.
28 楼 mdboy 2012-09-04  
刚刚贴的代码太长了,把前缀缩短了点,重新贴一遍
SharedLibrary  : libffmpeg-jni.so

obj/local/armeabi/libavformat.a(matroskadec.o): In function `matroska_decode_buffer':

ffmpeg-jni/libffmpeg/libavformat/matroskadec.c:1071: undefined reference to `inflateInit_'

jni/libffmpeg/libavformat/matroskadec.c:1086: undefined reference to `inflate'

jni/libffmpeg/libavformat/matroskadec.c:1079: undefined reference to `inflateEnd'

ffmpeg-jni/libffmpeg/libavformat/matroskadec.c:1091: undefined reference to `inflateEnd'

ffmpeg-obj/local/armeabi/libavformat.a(id3v2.o): In function `ff_id3v2_parse':

jni/libffmpeg/libavformat/id3v2.c:683: undefined reference to `uncompress'

obj/local/armeabi/libavcodec.a(svq3.o): In function `svq3_decode_init':

jni/libffmpeg/libavcodec/svq3.c:915: undefined reference to `uncompress'

obj/local/armeabi/libavcodec.a(tscc.o): In function `decode_end':

jni/libffmpeg/libavcodec/tscc.c:201: undefined reference to `inflateEnd'

obj/local/armeabi/libavcodec.a(tscc.o): In function `decode_frame':

jni/libffmpeg/libavcodec/tscc.c:92: undefined reference to `inflateReset'

jni/libffmpeg/libavcodec/tscc.c:101: undefined reference to `inflate'

obj/local/armeabi/libavcodec.a(tscc.o): In function `decode_init':

jni/libffmpeg/libavcodec/tscc.c:177: undefined reference to `inflateInit_'

obj/local/armeabi/libavcodec.a(dsputil_init_arm.o): In function `ff_dsputil_init_arm':

libffmpeg/libavcodec/arm/dsputil_init_arm.c:122: undefined reference to `ff_dsputil_init_armv5te'

ffmpeg-obj/local/armeabi/libavcodec.a(mpegvideo_arm.o): In function `ff_MPV_common_init_arm':

ffmpeg-jni/libffmpeg/libavcodec/arm/mpegvideo_arm.c:47: undefined reference to `ff_MPV_common_init_armv5te'

ffmpeg-obj/local/armeabi/libavutil.a(cpu.o): In function `av_get_cpu_flags':

jni/libffmpeg/libavutil/cpu.c:35: undefined reference to `ff_get_cpu_flags_arm'
collect2: ld returned 1 exit status
make:
 *** [obj/local/armeabi/libffmpeg-jni.so] Error 1

27 楼 mdboy 2012-09-04  
博主,您好,我在按照您的方法编译的时候,出现以下问题,麻烦您看下是什么问题
SharedLibrary  : libffmpeg-jni.so
/home/boyce/project/android/freshui-palyer/ffmpeg-player/obj/local/armeabi/libavformat.a(matroskadec.o): In function `matroska_decode_buffer':
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavformat/matroskadec.c:1071: undefined reference to `inflateInit_'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavformat/matroskadec.c:1086: undefined reference to `inflate'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavformat/matroskadec.c:1079: undefined reference to `inflateEnd'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavformat/matroskadec.c:1091: undefined reference to `inflateEnd'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/obj/local/armeabi/libavformat.a(id3v2.o): In function `ff_id3v2_parse':
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavformat/id3v2.c:683: undefined reference to `uncompress'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/obj/local/armeabi/libavcodec.a(svq3.o): In function `svq3_decode_init':
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavcodec/svq3.c:915: undefined reference to `uncompress'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/obj/local/armeabi/libavcodec.a(tscc.o): In function `decode_end':
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavcodec/tscc.c:201: undefined reference to `inflateEnd'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/obj/local/armeabi/libavcodec.a(tscc.o): In function `decode_frame':
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavcodec/tscc.c:92: undefined reference to `inflateReset'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavcodec/tscc.c:101: undefined reference to `inflate'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/obj/local/armeabi/libavcodec.a(tscc.o): In function `decode_init':
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavcodec/tscc.c:177: undefined reference to `inflateInit_'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/obj/local/armeabi/libavcodec.a(dsputil_init_arm.o): In function `ff_dsputil_init_arm':
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavcodec/arm/dsputil_init_arm.c:122: undefined reference to `ff_dsputil_init_armv5te'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/obj/local/armeabi/libavcodec.a(mpegvideo_arm.o): In function `ff_MPV_common_init_arm':
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavcodec/arm/mpegvideo_arm.c:47: undefined reference to `ff_MPV_common_init_armv5te'
/home/boyce/project/android/freshui-palyer/ffmpeg-player/obj/local/armeabi/libavutil.a(cpu.o): In function `av_get_cpu_flags':
/home/boyce/project/android/freshui-palyer/ffmpeg-player/jni/libffmpeg/libavutil/cpu.c:35: undefined reference to `ff_get_cpu_flags_arm'
collect2: ld returned 1 exit status
make: *** [/home/boyce/project/android/freshui-palyer/ffmpeg-player/obj/local/armeabi/libffmpeg-jni.so] Error 1

26 楼 mdboy 2012-09-04  
博主你好,我在按照您的方法编译的时候遇到一个问题,请教您。
25 楼 tianyifeng1989 2012-08-17  
tianyifeng1989 写道
tianyifeng1989 写道
superonion 写道
tianyifeng1989 写道
License: LGPL version 2.1 or later
Creating config.mak and config.h...
./config.sh: line 10: --arch=arm: command not found
./config.sh: line 11: --enable-shared: command not found
./config.sh: line 12: --enable-cross-compile: command not found
./config.sh: line 13: --cc=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/pre
file or directory
./config.sh: line 14: --cross-prefix=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi
No such file or directory
./config.sh: line 15: --strip=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/
such file or directory
./config.sh: line 16: --extra-cflags=-fPIC -DANDROID: command not found
./config.sh: line 17: --extra-ldflags=-Wl,-T,/cygdrive/e/android-ndk-r8/toolchains/arm-linux-and
i/lib/ldscripts/armelf_linux_eabi.x -Wl,-rpath-link=/cygdrive/e/android-ndk-r8/platforms/android
forms/android-14/arch-arm/usr/lib -nostdlib /cygdrive/e/android-ndk-r8/toolchains/arm-linux-andr
roideabi/4.4.3/crtbegin.o /cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/preb
end.o -lc -lm -ldl: No such file or directory
./config.sh: line 18: $'\r': command not found
Android NDK: Could not find application project directory !
Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.
/cygdrive/e/android-ndk-r8/build/core/build-local.mk:130: *** Android NDK: Aborting    .  Stop.

这怎么办,LZ帮看一下

config配置里,每个配置项后面不要有空格,每行之间不要有空行



都去掉了,我的是win7环境







#!/bin/bash
source config_common.sh
cd ffmpeg
PREBUILT=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows
PLATFORM=/cygdrive/e/android-ndk-r8/platforms/android-14/arch-arm 
./configure --target-os=windows
--arch=arm
--enable-shared
--enable-cross-compile
--cc=$PREBUILT/bin/arm-linux-androideabi-gcc
--cross-prefix=$PREBUILT/bin/arm-linux-androideabi-
--strip=$PREBUILT/bin/arm-linux-androideabi-strip
--extra-cflags="-fPIC -DANDROID"
--extra-ldflags="-Wl,-T,$PREBUILT/arm-linux-androideabi/lib/ldscripts/armelf_linux_eabi.x -Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/crtbegin.o $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/crtend.o -lc -lm -ldl"
$FFCONFIG_COMMON
cd ..
ndk-build clean


这是我的配置



PREBUILT=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows

./configure --target-os=windows

应只有这里要改吧,其他都是ffmpeg的路径都是一样的
24 楼 superonion 2012-08-16  
tianyifeng1989 写道
tianyifeng1989 写道
superonion 写道
tianyifeng1989 写道
License: LGPL version 2.1 or later
Creating config.mak and config.h...
./config.sh: line 10: --arch=arm: command not found
./config.sh: line 11: --enable-shared: command not found
./config.sh: line 12: --enable-cross-compile: command not found
./config.sh: line 13: --cc=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/pre
file or directory
./config.sh: line 14: --cross-prefix=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi
No such file or directory
./config.sh: line 15: --strip=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/
such file or directory
./config.sh: line 16: --extra-cflags=-fPIC -DANDROID: command not found
./config.sh: line 17: --extra-ldflags=-Wl,-T,/cygdrive/e/android-ndk-r8/toolchains/arm-linux-and
i/lib/ldscripts/armelf_linux_eabi.x -Wl,-rpath-link=/cygdrive/e/android-ndk-r8/platforms/android
forms/android-14/arch-arm/usr/lib -nostdlib /cygdrive/e/android-ndk-r8/toolchains/arm-linux-andr
roideabi/4.4.3/crtbegin.o /cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/preb
end.o -lc -lm -ldl: No such file or directory
./config.sh: line 18: $'\r': command not found
Android NDK: Could not find application project directory !
Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.
/cygdrive/e/android-ndk-r8/build/core/build-local.mk:130: *** Android NDK: Aborting    .  Stop.

这怎么办,LZ帮看一下

config配置里,每个配置项后面不要有空格,每行之间不要有空行



都去掉了,我的是win7环境







#!/bin/bash
source config_common.sh
cd ffmpeg
PREBUILT=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows
PLATFORM=/cygdrive/e/android-ndk-r8/platforms/android-14/arch-arm 
./configure --target-os=windows
--arch=arm
--enable-shared
--enable-cross-compile
--cc=$PREBUILT/bin/arm-linux-androideabi-gcc
--cross-prefix=$PREBUILT/bin/arm-linux-androideabi-
--strip=$PREBUILT/bin/arm-linux-androideabi-strip
--extra-cflags="-fPIC -DANDROID"
--extra-ldflags="-Wl,-T,$PREBUILT/arm-linux-androideabi/lib/ldscripts/armelf_linux_eabi.x -Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/crtbegin.o $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/crtend.o -lc -lm -ldl"
$FFCONFIG_COMMON
cd ..
ndk-build clean


这是我的配置

既然是Windows环境,你配置里的linux就应该相应地改成windows吧
23 楼 tianyifeng1989 2012-08-16  
tianyifeng1989 写道
superonion 写道
tianyifeng1989 写道
License: LGPL version 2.1 or later
Creating config.mak and config.h...
./config.sh: line 10: --arch=arm: command not found
./config.sh: line 11: --enable-shared: command not found
./config.sh: line 12: --enable-cross-compile: command not found
./config.sh: line 13: --cc=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/pre
file or directory
./config.sh: line 14: --cross-prefix=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi
No such file or directory
./config.sh: line 15: --strip=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/
such file or directory
./config.sh: line 16: --extra-cflags=-fPIC -DANDROID: command not found
./config.sh: line 17: --extra-ldflags=-Wl,-T,/cygdrive/e/android-ndk-r8/toolchains/arm-linux-and
i/lib/ldscripts/armelf_linux_eabi.x -Wl,-rpath-link=/cygdrive/e/android-ndk-r8/platforms/android
forms/android-14/arch-arm/usr/lib -nostdlib /cygdrive/e/android-ndk-r8/toolchains/arm-linux-andr
roideabi/4.4.3/crtbegin.o /cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/preb
end.o -lc -lm -ldl: No such file or directory
./config.sh: line 18: $'\r': command not found
Android NDK: Could not find application project directory !
Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.
/cygdrive/e/android-ndk-r8/build/core/build-local.mk:130: *** Android NDK: Aborting    .  Stop.

这怎么办,LZ帮看一下

config配置里,每个配置项后面不要有空格,每行之间不要有空行



都去掉了,我的是win7环境







#!/bin/bash
source config_common.sh
cd ffmpeg
PREBUILT=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows
PLATFORM=/cygdrive/e/android-ndk-r8/platforms/android-14/arch-arm 
./configure --target-os=windows
--arch=arm
--enable-shared
--enable-cross-compile
--cc=$PREBUILT/bin/arm-linux-androideabi-gcc
--cross-prefix=$PREBUILT/bin/arm-linux-androideabi-
--strip=$PREBUILT/bin/arm-linux-androideabi-strip
--extra-cflags="-fPIC -DANDROID"
--extra-ldflags="-Wl,-T,$PREBUILT/arm-linux-androideabi/lib/ldscripts/armelf_linux_eabi.x -Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/crtbegin.o $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/crtend.o -lc -lm -ldl"
$FFCONFIG_COMMON
cd ..
ndk-build clean


这是我的配置
22 楼 superonion 2012-08-16  
tianyifeng1989 写道
License: LGPL version 2.1 or later
Creating config.mak and config.h...
./config.sh: line 10: --arch=arm: command not found
./config.sh: line 11: --enable-shared: command not found
./config.sh: line 12: --enable-cross-compile: command not found
./config.sh: line 13: --cc=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/pre
file or directory
./config.sh: line 14: --cross-prefix=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi
No such file or directory
./config.sh: line 15: --strip=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/
such file or directory
./config.sh: line 16: --extra-cflags=-fPIC -DANDROID: command not found
./config.sh: line 17: --extra-ldflags=-Wl,-T,/cygdrive/e/android-ndk-r8/toolchains/arm-linux-and
i/lib/ldscripts/armelf_linux_eabi.x -Wl,-rpath-link=/cygdrive/e/android-ndk-r8/platforms/android
forms/android-14/arch-arm/usr/lib -nostdlib /cygdrive/e/android-ndk-r8/toolchains/arm-linux-andr
roideabi/4.4.3/crtbegin.o /cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/preb
end.o -lc -lm -ldl: No such file or directory
./config.sh: line 18: $'\r': command not found
Android NDK: Could not find application project directory !
Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.
/cygdrive/e/android-ndk-r8/build/core/build-local.mk:130: *** Android NDK: Aborting    .  Stop.

这怎么办,LZ帮看一下

config配置里,每个配置项后面不要有空格,每行之间不要有空行
21 楼 tianyifeng1989 2012-08-16  
License: LGPL version 2.1 or later
Creating config.mak and config.h...
./config.sh: line 10: --arch=arm: command not found
./config.sh: line 11: --enable-shared: command not found
./config.sh: line 12: --enable-cross-compile: command not found
./config.sh: line 13: --cc=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/pre
file or directory
./config.sh: line 14: --cross-prefix=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi
No such file or directory
./config.sh: line 15: --strip=/cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/
such file or directory
./config.sh: line 16: --extra-cflags=-fPIC -DANDROID: command not found
./config.sh: line 17: --extra-ldflags=-Wl,-T,/cygdrive/e/android-ndk-r8/toolchains/arm-linux-and
i/lib/ldscripts/armelf_linux_eabi.x -Wl,-rpath-link=/cygdrive/e/android-ndk-r8/platforms/android
forms/android-14/arch-arm/usr/lib -nostdlib /cygdrive/e/android-ndk-r8/toolchains/arm-linux-andr
roideabi/4.4.3/crtbegin.o /cygdrive/e/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/preb
end.o -lc -lm -ldl: No such file or directory
./config.sh: line 18: $'\r': command not found
Android NDK: Could not find application project directory !
Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.
/cygdrive/e/android-ndk-r8/build/core/build-local.mk:130: *** Android NDK: Aborting    .  Stop.

这怎么办,LZ帮看一下
20 楼 superonion 2012-08-12  
steven_rui 写道
楼主,我现在也在做Android流媒体播放,也是用的HLS协议,我想请问一下,应该将HLS协议地址传给FFMpeg里边的哪个函数?

avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options)
19 楼 steven_rui 2012-08-12  
楼主,我现在也在做Android流媒体播放,也是用的HLS协议,我想请问一下,应该将HLS协议地址传给FFMpeg里边的哪个函数?
18 楼 wuppa 2012-07-31  
superonion 写道
wuppa 写道
superonion 写道
wuppa 写道
创建了,内容如下:
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
include $(LOCAL_PATH)/../av.mk
LOCAL_SRC_FILES:= $(FFFILES)
LOCAL_C_INCLUDES:= \
$(LOCAL_PATH) \
$(LOCAL_PATH)/..
LOCAL_CFLAGS+= $(FFCFLAGS)
LOCAL_STATIC_LIBRARIES:= $(FFLIBS)
LOCAL_MODULE:= $(FFNAME)
include $(BUILD_STATIC_LIBRARY)

jni/libffmpeg/libavformat/目录下Android.mk与其他几个不一样,你刷新下博文

这次出来了,还想请教下,就是现在编译完成后那些是有用的文件呢,如果我要在其他的项目用这个,我需要拷贝那些文件到项目目录呢,还请博主指点下

其实有用的文件只有一个,那就是最终的.so文件,前提是你通过LOCAL_SRC_FILES链接了JNI文件,要不然你的项目中根本无法调用这个.so库里的函数...

不知道博主可否提供一个简单的接口的例子呢,我想试试这个库编译的是否正确,谢谢了

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