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Bug de détection d’ogg
22 mars 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Video
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Publier sur MédiaSpip
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Build FFmpeg for All Android architecture correctly
26 octobre 2017, par fthopkinsI built ffmpeg libraries for all android architecture. But some details are confusing my mind. First of all let me explain step by step how i built.
- I downloaded latest version of
libx264
from
https://www.videolan.org/developers/x264.html - Created and run
build_all.sh
script (in x264 folder) for creating libs for (almost) all android platforms. Then i gotandroid
folder in x264 folder. e.gandroid/arm
android/arm64
android/x86
android/x86_64
in x264 folder. - I download the
ffmpeg3.3.4
from https://ffmpeg.org/download.html - I created 4 copies of
ffmpeg3.3.4
folder. Named them with android architectures names.
Likeffmpeg3.3.4-arm64
ffmpeg3.3.4-arm
ffmpeg3.3.4-x86
ffmpeg3.3.4-x86_64
- Created build_(architecture-name).sh for each platforms of android. Than move each one of
'named'.sh files
to the named ffmpeg folders according to their architecture names.
E.gbuild_android_x86.sh
=>ffmpeg3.3.4-x86
build_android_arm64.sh
example#!/bin/bash
#Change NDK to your Android NDK location
NDK=$HOME/Android/Sdk/ndk-bundle
PLATFORM=$NDK/platforms/android-21/arch-arm64/
PREBUILT=$NDK/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64
GENERAL="\
--enable-small \
--enable-cross-compile \
--extra-libs="-lgcc" \
--arch=aarch64 \
--cc=$PREBUILT/bin/aarch64-linux-android-gcc \
--cross-prefix=$PREBUILT/bin/aarch64-linux-android- \
--nm=$PREBUILT/bin/aarch64-linux-android-nm \
--extra-cflags="-I../x264/android/arm64/include" \
--extra-ldflags="-L../x264/android/arm64/lib" "
MODULES="\
--enable-gpl \
--enable-libx264"
function build_arm64
{
./configure \
--logfile=conflog.txt \
--target-os=linux \
--prefix=./android/arm64-v8a \
${GENERAL} \
--sysroot=$PLATFORM \
--extra-cflags="" \
--extra-ldflags="-lx264 -Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib -lc -lm -ldl -llog" \
--enable-shared \
--disable-static \
--disable-doc \
--enable-zlib \
${MODULES}
make clean
make
make install
}
build_arm64
echo Android ARM64 builds finished- Moved all
ffmpeg3.3.4-arm64
ffmpeg3.3.4-arm
ffmpeg3.3.4-x86
ffmpeg3.3.4-x86_64
folders to theNDK_PATH
(C:\Users\MyName\AppData\Local\Android\sdk\ndk-bundle
) - Put
x264
folder at same level of hierarchy with ffmpeg folders
in (C:\Users\MyName\AppData\Local\Android\sdk\ndk-bundle
) - Run each of
build_android_x86.sh
,build_android_x86_64.sh
.. scripts one by one in their own ffmpeg folder. Then i gotandroid
folders in ffmpeg folders. (createdandroid
folders have library folders)
e.gffmpeg3.3.4-x86/android/x86/(bin,inlude,lib,share)
-
Created
Android.mk
files for all createdandroid
folders and moved each one of them to android/armName folder. e.gAndroid.mk
=>ffmpeg3.3.4-x86/android/x86/
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE:= libavcodec
LOCAL_SRC_FILES:= lib/libavcodec-57.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE:= libavformat
LOCAL_SRC_FILES:= lib/libavformat-57.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE:= libswscale
LOCAL_SRC_FILES:= lib/libswscale-4.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE:= libavutil
LOCAL_SRC_FILES:= lib/libavutil-55.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE:= libavfilter
LOCAL_SRC_FILES:= lib/libavfilter-6.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE:= libswresample
LOCAL_SRC_FILES:= lib/libswresample-2.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := postproc
LOCAL_SRC_FILES := lib/libpostproc-54.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := avdevice
LOCAL_SRC_FILES := lib/libavdevice-57.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_SHARED_LIBRARY) -
Create "arm named" folders e.g
x86
x86_4
arm64
arm7
in jni folder of my project (myproject/app/jni/x86
,myproject/app/jni/x86_64
). -
Go to ndk path open named ffmpeg folders one by one and copy
ffmpeg.c
ffmpeg_filter.c
ffmpeg_opt.c
cmdutils.c
files from ffmpeg folders to the "arm named" folders. e.gffmpeg.c
=>myproject/app/jni/x86
-
Created Android.mk file in my project.
LOCAL_PATH := $(call my-dir)
#$(warning $(LOCAL_PATH))
include $(CLEAR_VARS)
LOCAL_MODULE := videoEdit
LOCAL_LDLIBS := -llog -ljnigraphics -lz -landroid
LOCAL_CFLAGS := -Wdeprecated-declarations
ANDROID_LIB := -landroid
$(info $(TARGET_ARCH_ABI))
ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
LOCAL_C_INCLUDES:=/Users/MyName/AppData/Local/Android/sdk/ndk-bundle/sources/ffmpeg-3.3.4-armeabi
LOCAL_SRC_FILES := videoEdit.c arm7/ffmpeg.c arm7/ffmpeg_filter.c arm7/ffmpeg_opt.c arm7/cmdutils.c
LOCAL_CFLAGS += -lx264 -Wl,--no-merge-exidx-entries
else
ifeq ($(TARGET_ARCH_ABI),arm64-v8a)
LOCAL_C_INCLUDES:=/Users/MyName/AppData/Local/Android/sdk/ndk-bundle/sources/ffmpeg-3.3.4-arm64-v8a
LOCAL_SRC_FILES := videoEdit.c arm64/ffmpeg.c arm64/ffmpeg_filter.c arm64/ffmpeg_opt.c arm64/cmdutils.c
LOCAL_CFLAGS += -funwind-tables -Wl,--no-merge-exidx-entries
else
ifeq ($(TARGET_ARCH_ABI),x86_64)
LOCAL_C_INCLUDES:=/Users/MyName/AppData/Local/Android/sdk/ndk-bundle/sources/ffmpeg3.3.4-x86_64
LOCAL_SRC_FILES := videoEdit.c x86_64/ffmpeg.c x86_64/ffmpeg_filter.c x86_64/ffmpeg_opt.c x86_64/cmdutils.c
else
LOCAL_C_INCLUDES:=/Users/MyName/AppData/Local/Android/sdk/ndk-bundle/sources/ffmpeg3.3.4-x86
LOCAL_SRC_FILES := videoEdit.c x86/ffmpeg.c x86/ffmpeg_filter.c x86/ffmpeg_opt.c x86/cmdutils.c
endif
endif
endif
LOCAL_SHARED_LIBRARIES := libavformat libavcodec libswscale libavutil libswresample libavfilter libavdevice libpostproc
include $(BUILD_SHARED_LIBRARY)
ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
$(call import-module,ffmpeg-3.3.4-armeabi/android/armeabi-v7a)
else
ifeq ($(TARGET_ARCH_ABI),arm64-v8a)
$(call import-module,ffmpeg-3.3.4-arm64-v8a/android/arm64-v8a)
else
ifeq ($(TARGET_ARCH_ABI),x86_64)
$(call import-module,ffmpeg3.3.4-x86_64/android/x86_64)
else
$(call import-module,ffmpeg3.3.4-x86/android/i686-diasm)
endif
endif
endif -
Created Application.mk file in my project.
APP_ABI := armeabi-v7a, arm64-v8a, x86_64, x86
APP_PLATFORM := android-14 -
Created videoEdit.c than run
ndk-build
build command.
Built with no error. I can run ffmpeg commands but it takes too much time i think. E.g when i try to run
hflip
it flips the video with 15 seconds.Code example :
JNIEXPORT jint JNICALL Java_com_name_app_library_VideoEditer_natives_VideoEditer_flipHorizontally
(JNIEnv *env, jclass someclass, jstring inputFile, jstring outFile) {
int numberOfArgs = 14;
char** arguments = calloc(numberOfArgs, sizeof(char*));
const char *in, *out;
in = (*env)->GetStringUTFChars(env, inputFile, 0);
out = (*env)->GetStringUTFChars(env, outFile, 0);
arguments[0] = "ffmpeg";
arguments[1] = "-i";
arguments[2] = in;
arguments[3] = "-c:v";
arguments[4] = "libx264";
arguments[5] = "-preset";
arguments[6] = "ultrafast";
arguments[7] = "-threads";
arguments[8] = "5";
arguments[9] = "-c:a";
arguments[10] = "copy";
arguments[11] = "-vf";
arguments[12] = "hflip";
arguments[13] = out;
int i;
for (i = 0; i < numberOfArgs; i++) {
log_message(arguments[i]);
}
log_message("Printed all");
main(numberOfArgs, arguments);
free(arguments);
(*env)->ReleaseStringUTFChars(env, inputFile, in);
(*env)->ReleaseStringUTFChars(env, outFile, out);
return 0;
}FFmpeg Commands that runs on android, working very fast on emaulator but very slow on real device.
Also another thing to confusing my mind is output of
./configure
command.
When i open the (e.g)ffmpeg-3.3.4-arm64-v8a
folder and run./configure
command in terminal. Output saysARCH x86 (generic)
. For all platform output is the sameARCH x86 (generic)
.Output of
./configure
command inffmpeg-3.3.4-arm64-v8a
folderinstall prefix /usr/local
source path .
C compiler gcc
C library glibc
ARCH x86 (generic)
big-endian no
runtime cpu detection yes
yasm yes
MMX enabled yes
MMXEXT enabled yes
3DNow! enabled yes
3DNow! extended enabled yes
SSE enabled yes
SSSE3 enabled yes
AESNI enabled yes
AVX enabled yes
XOP enabled yes
FMA3 enabled yes
FMA4 enabled yes
i686 features enabled yes
CMOV is fast yes
EBX available yes
EBP available yes
debug symbols yes
strip symbols yes
optimize for size no
optimizations yes
static yes
shared no
postprocessing support no
network support yes
threading support pthreads
safe bitstream reader yes
texi2html enabled no
perl enabled yes
pod2man enabled yes
makeinfo enabled no
makeinfo supports HTML no
External libraries:
iconv xlibEDIT all of these steps made on ubuntu then moved all folders to the windows. So dont be confuse about paths.
With all of these steps i want to ask is, is there anything wrong on my steps. Should i follow any other way or not ? Why the ffmpeg is running slower on real device. I am wondering one thing badly, how retrica, snapchat, instagram recording video as mirrored flipping ? Are they flipping after recorded (if they are how are they doing this in a second) or are they recording a video as flipped in run time ? I guess building ffmpeg for android is bit messy and making wrong things is very easy. If you look my steps, questions and give me an advice, i will be much appreciated.
- I downloaded latest version of
-
Revision 29747 : On incrémente la version du plugin
8 juillet 2009, par kent1@… — LogOn incrémente la version du plugin
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The Ultimate List of Alternatives to Google Products
2 août 2022, par Erin — Privacy