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  • How to encode video using ffmpeg-java on Android from Bitmaps ?

    15 décembre 2011, par gtcompscientist

    I am using ffmpeg-java compiled for Android to encode/decode video for my application.

    The problem that I've run into is that I am currently getting each frame as a Bitmap (just a plain android.graphics.Bitmap) and I can't figure out how to stuff that into the encoder.

    Here is the code that I am using to instantiate all the ffmpeg libraries :

        AVCodecLibrary cLibrary = AVCodecLibrary.INSTANCE;
    
    cLibrary.avcodec_register_all();
    
    cLibrary.avcodec_init();
    

    
    AVFormatLibrary fLibrary = AVFormatLibrary.INSTANCE;
    
    fLibrary.av_register_all();
    

    
    //AVUtilLibrary uLibrary = AVUtilLibrary.INSTANCE;
    
    //uLibrary.av_malloc();
    

    
    AVCodec pCodec = cLibrary.avcodec_find_encoder(AVCodecLibrary.CODEC_ID_H263);
    
    if (pCodec == null)
    
    {
    
        Logging.Log("Unable to find codec.");
    
        return;
    
    }
    
    Logging.Log("Found codec.");
    

    

    
    AVCodecContext codecCtx = cLibrary.avcodec_alloc_context();
    
    codecCtx.bit_rate = 64000;
    
    codecCtx.coded_width = VIDEO_WIDTH;
    
    codecCtx.coded_height = VIDEO_HEIGHT;
    
    codecCtx.time_base = new AVRational(1, VIDEO_FPS);
    
    codecCtx.pix_fmt = AVCodecLibrary.PIX_FMT_YUV420P;
    
    codecCtx.codec_id = AVCodecLibrary.CODEC_ID_H263;
    
    //codecCtx.codec_type = AVMEDIA_TYPE_VIDEO;
    

    
    if (cLibrary.avcodec_open(codecCtx, pCodec) < 0)
    
    {
    
        Logging.Log("Unable to open codec.");
    
        return;
    
    }
    
    Logging.Log("Codec opened.");

    This is what I want to be able to execute next :

    cLibrary.avcodec_encode_video(codecCtx, pPointer, pFrame.size(), pFrame);

    But, as of now, I don't know how to put the Bitmap into the right piece or if I have that setup correctly.

    A few notes about the code :
    - VIDEO_WIDTH = 352
    - VIDEO_HEIGHT = 288
    - VIDEO_FPS = 30 ;
    - I'm unsure about how pPointer and pFrame are handled.

  • Error while compile ffmpeg on cygwin for android [closed]

    7 novembre 2011, par Satheesh

    Possible Duplicate :
    Error when run the command ./build.sh in FFmpeg decoder in Android

    I have try to implement the ffmpeg decoding library in my android project.Dowload FFmpeg.I got the ffmpeg library from the bambuser client version and unpack that into the project jni folder.Then i run the extract command(./extract.sh) in cygwin compiler tool(its becoz am using windows os) after that am trying to build ffmpeg library using the command ./build.sh

    I have googled a lot but i cant make it work. Please help me out from this.

    NDK version : NDKr5b Cygwin tool version : 1.7

    My build.sh file is

    /************Command starts here******************/
    

    
 #!/bin/bash
    

    
if [ "$NDK" = "" ]; then
    
    echo NDK variable not set, assuming ${HOME}/android-ndk
    
    export NDK=${HOME}/android-ndk
    
fi
    

    
SYSROOT=$NDK/platforms/android-8/arch-arm
    
 # Expand the prebuilt/* path into the correct one
    
TOOLCHAIN=`echo $NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows`
    
export PATH=$TOOLCHAIN/bin:$PATH
    

    
rm -rf build/ffmpeg
    
mkdir -p build/ffmpeg
    
cd ffmpeg
    

    
 # Don't build any neon version for now
    
for version in armv5te armv7a
    
do
    

    
    DEST=../build/ffmpeg
    
    FLAGS="--target-os=linux --arch=arm"
    
    FLAGS="$FLAGS --cross-prefix=arm-linux-androideabi- --arch=arm"
    
    FLAGS="$FLAGS --sysroot=$SYSROOT"
    
    FLAGS="$FLAGS --soname-prefix=/data/data/org.rifluxyss.androiddev.livewallpapaerffmpeg/lib/"
    
    FLAGS="$FLAGS --enable-cross-compile --cc=$TOOLCHAIN/bin/arm-linux-androideabi-gcc"
    
    FLAGS="$FLAGS --enable-shared --disable-symver"
    
    FLAGS="$FLAGS --nm=$TOOLCHAIN/bin/arm-linux-androideabi-nm"
    
    FLAGS="$FLAGS --ar=$TOOLCHAIN/bin/arm-linux-androideabi-ar"
    
    FLAGS="$FLAGS --ranlib=$TOOLCHAIN/bin/arm-linux-androideabi-ranlib"
    
    FLAGS="$FLAGS --enable-small --optimization-flags=-O2"
    
    FLAGS="$FLAGS --enable-encoder=mpeg2video --enable-encoder=nellymoser --enable-memalign-hack "
    
    FLAGS="$FLAGS --disable-ffmpeg --disable-ffplay"
    
    FLAGS="$FLAGS --disable-ffserver --disable-ffprobe --disable-encoders"
    
    FLAGS="$FLAGS --disable-muxers --disable-devices --disable-protocols"
    
    FLAGS="$FLAGS --enable-protocol=file --enable-avfilter"
    
    FLAGS="$FLAGS --disable-network --enable-pthreads --enable-avutil"
    
    FLAGS="$FLAGS --disable-avdevice --disable-asm --extra-libs=-lgcc"
    

    
    case "$version" in
    
        neon)
    
            EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp -mfpu=neon"
    
            EXTRA_LDFLAGS="-Wl,--fix-cortex-a8"
    
            # Runtime choosing neon vs non-neon requires
    
            # renamed files
    
            ABI="armeabi-v7a"
    
            ;;
    
        armv7a)
    
            EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp"
    
            EXTRA_LDFLAGS=""
    
            ABI="armeabi-v7a"
    
            ;;
    
        *)
    
            EXTRA_CFLAGS=""
    
            EXTRA_LDFLAGS=""
    
            ABI="armeabi"
    
            ;;
    
    esac
    
    DEST="$DEST/$ABI"
    
    FLAGS="$FLAGS --prefix=$DEST"
    

    
    mkdir -p $DEST
    
    echo $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" > $DEST/info.txt
    
    ./configure $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" | tee $DEST/configuration.txt
    
    [ $PIPESTATUS == 0 ] || exit 1
    
    make clean
    
    make -j4 || exit 1
    
    make install || exit 1
    

    
done
    

    
/****************Command ends here************************/

    While compiling this am getting error when linking the archive files into .so files.

    The error is look like
    "arm-linux-androideabi/bin/ld.exe : cannot find -lavutil
    Collect2:ld returned 1 exit status
    make :[libaswscale/libswscale.so] Error 1
    make :     waititng for unfinished jobs...."

    Please anyone help me to out from this.

  • Linker error when compiling ffmpeg for Android

    7 novembre 2011, par Satheesh

    I have try to implement the ffmpeg decoding library in my android project.Dowload FFmpeg.I got the ffmpeg library from the bambuser client version and unpack that into the project jni folder.Then i run the extract command(./extract.sh) in cygwin compiler tool(its becoz am using windows os) after that am trying to build ffmpeg library using the command ./build.sh

    I have googled a lot but i cant make it work. Please help me out from this.

    NDK version : NDKr5b Cygwin tool version : 1.7

    My build.sh file is

    /************Command starts here******************/
    

    
 #!/bin/bash
    

    
if [ "$NDK" = "" ]; then
    
    echo NDK variable not set, assuming ${HOME}/android-ndk
    
    export NDK=${HOME}/android-ndk
    
fi
    

    
SYSROOT=$NDK/platforms/android-8/arch-arm
    
 # Expand the prebuilt/* path into the correct one
    
TOOLCHAIN=`echo $NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows`
    
export PATH=$TOOLCHAIN/bin:$PATH
    

    
rm -rf build/ffmpeg
    
mkdir -p build/ffmpeg
    
cd ffmpeg
    

    
 # Don't build any neon version for now
    
for version in armv5te armv7a
    
do
    

    
    DEST=../build/ffmpeg
    
    FLAGS="--target-os=linux --arch=arm"
    
    FLAGS="$FLAGS --cross-prefix=arm-linux-androideabi- --arch=arm"
    
    FLAGS="$FLAGS --sysroot=$SYSROOT"
    
    FLAGS="$FLAGS --soname-prefix=/data/data/org.rifluxyss.androiddev.livewallpapaerffmpeg/lib/"
    
    FLAGS="$FLAGS --enable-cross-compile --cc=$TOOLCHAIN/bin/arm-linux-androideabi-gcc"
    
    FLAGS="$FLAGS --enable-shared --disable-symver"
    
    FLAGS="$FLAGS --nm=$TOOLCHAIN/bin/arm-linux-androideabi-nm"
    
    FLAGS="$FLAGS --ar=$TOOLCHAIN/bin/arm-linux-androideabi-ar"
    
    FLAGS="$FLAGS --ranlib=$TOOLCHAIN/bin/arm-linux-androideabi-ranlib"
    
    FLAGS="$FLAGS --enable-small --optimization-flags=-O2"
    
    FLAGS="$FLAGS --enable-encoder=mpeg2video --enable-encoder=nellymoser --enable-memalign-hack "
    
    FLAGS="$FLAGS --disable-ffmpeg --disable-ffplay"
    
    FLAGS="$FLAGS --disable-ffserver --disable-ffprobe --disable-encoders"
    
    FLAGS="$FLAGS --disable-muxers --disable-devices --disable-protocols"
    
    FLAGS="$FLAGS --enable-protocol=file --enable-avfilter"
    
    FLAGS="$FLAGS --disable-network --enable-pthreads --enable-avutil"
    
    FLAGS="$FLAGS --disable-avdevice --disable-asm --extra-libs=-lgcc"
    

    
    case "$version" in
    
        neon)
    
            EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp -mfpu=neon"
    
            EXTRA_LDFLAGS="-Wl,--fix-cortex-a8"
    
            # Runtime choosing neon vs non-neon requires
    
            # renamed files
    
            ABI="armeabi-v7a"
    
            ;;
    
        armv7a)
    
            EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp"
    
            EXTRA_LDFLAGS=""
    
            ABI="armeabi-v7a"
    
            ;;
    
        *)
    
            EXTRA_CFLAGS=""
    
            EXTRA_LDFLAGS=""
    
            ABI="armeabi"
    
            ;;
    
    esac
    
    DEST="$DEST/$ABI"
    
    FLAGS="$FLAGS --prefix=$DEST"
    

    
    mkdir -p $DEST
    
    echo $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" > $DEST/info.txt
    
    ./configure $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" | tee $DEST/configuration.txt
    
    [ $PIPESTATUS == 0 ] || exit 1
    
    make clean
    
    make -j4 || exit 1
    
    make install || exit 1
    

    
done
    

    
/****************Command ends here************************/

    While compiling this am getting error when linking the archive files into .so files.

    The error is look like
    "arm-linux-androideabi/bin/ld.exe : cannot find -lavutil
    Collect2:ld returned 1 exit status
    make :[libaswscale/libswscale.so] Error 1
    make :     waititng for unfinished jobs...."

    Please anyone help me to out from this. Thanks in advance

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