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• mp4 to webm and ogv conversion not working using ffmpeg on linux server

  9 novembre 2016, par user75472

  I have a cron job to convert existing mp4 video file to ogv and webm using ffmpeg

  I have wordpress site with a page where user are allowed to upload mov and mp4 files. After the file is uploaded image is created from the video file and mov file is converted to mp4 successfully.

  However I need to concert uploaded mp4 file to webm and ogv to video work on all browsers. So I have set up cron job. Here is my code :

  include_once "../wp-config.php";
  
  ini_set('max_execution_time', 660); // 11 minutes
  
  // Get the path to the upload directory.
  
  $wp_upload_dir = wp_upload_dir();
  
  $dir = $wp_upload_dir['path'].'/';
  
  
  
  // Open a directory, and read its contents
  
  if (is_dir($dir)){
  
    if ($dh = opendir($dir)){
  
      while (($file = readdir($dh)) !== false){
  
        //echo "filename:" . $file . "<br />";
  
        $files = explode(".", $file);
  
        //echo end($fileinfo);
  
        if(end($fileinfo) == 'mp4') {
  
            $ffmpegPath = '/usr/local/bin/'; // linux
  
          //$ffmpegPath = 'C:\\ffmpeg\\bin\\'; // win
  
          if(!file_exists($dir.$files[0].'.webm')) {
  
  
  
                  $destFile = $dir.$files[0].'.webm';
  
  
  
                  $cmd = $ffmpegPath."ffmpeg -i ".$srcFile." -c:v libvpx -minrate 3900k -maxrate 3900k -b:v 3900k -c:a libvorbis ".$destFile;
  
  
  
            exec($cmd, $output, $retval);
  
            var_dump($output);
  
            var_dump($retval);
  
                  //exec($cmd);
  
          }
  
          if(!file_exists($dir.$files[0].'.ogv')) {
  
              //var_dump($fileinfo);
  
                  $destFile = $dir.$files[0].'.ogv';
  
  
  
                  $cmd1 = $ffmpegPath."ffmpeg -i ".$srcFile." -acodec libvorbis -ac 2 -ab 128k -ar 44100 -b:v 1200k ".$destFile;
  
  
  
            exec($cmd1, $output1, $retval1);
  
            var_dump($output1);
  
            var_dump($retval1);
  
          }
  
        }
  
      }
  
      closedir($dh);
  
    }
  
  }

  This works perfectly alright on windows but not working on linux, production server.

  I am missing something ?

• Apply filters to video while preview and save it with applied filter and original audio in android

  11 juillet 2016, par Rajkumar

  Dear geeks i m newbie to video processing. i want to apply a filter to a video at runtime, and i want to save that video after filter applied.
  Regarding this i m doing a research. I has gone through many libraries but i m struggling to achive my aim.

  Developement environment

  Migw-64 with windows 7 64 bit
  Android Studio 2.1 preview 5
  heap space 4GB
  com.android.tools.build:gradle:2.1.0
  android-ndk-r12-win-x86_64
  com.android.tools.build:gradle-experimental:0.7.0 —> to build NDK

  I have tried

  1)AndroidFastImageprocessingLibrary

  Chrisbatt -> AndroidFastImageProcessing in github
  github.com/chrisbatt/AndroidFastImageProcessing
  This library use GLSurfaceview to display filters but we could not save it to mp4 file

  so i found another implementation of it
  icmobilelab -> AndroidFastImageProcessing in github
  github.com/icmobilelab/AndroidFastImageProcessing/blob/master/framework/FastImageProcessing/src/project/android/imageprocessing/output/VideoFileEndpoint.java
  This library use JavaCV with ffmpeg compiled. But it failed.

  2)JavaCV
  JavaCV use outdated ffmpeg and it abondond

  3)Grafika -> in github
  github.com/google/grafika
  I tried Android Fast Image Processing with RecordFBOActivity in grafika. But i m failed. This library use MediaRecorder to record the contents of GLSurfaceView. But it records video without audio(I have tested the RecordFBOActivity and analyze the code )

  4)filter packs in platform_frameworks
  github.com/android/platform_frameworks_base/blob/master/media/mca/filterpacks/java/android/filterpacks/videosink/MediaEncoderFilter.java
  its android 4.2 edited core. i can’t run this code because too many jni dependencies.

  5)ffmpeg
  github.com/guardianproject/android-ffmpeg
  i tried ffmpeg3.1 compilation procedure implemented by guardianproject. it successfullay built a static library but i cannot build dynamic library( so files). i m stuck with a linker error. I think the linking order matters. i tried the linking order specified in below link
  https://fritzone.wordpress.com/2010/05/11/link-with-static-ffmpeg/
  but it won’t help. the following error occurs

  [armeabi-v7a] SharedLibrary  : libffmpeg.so
  
  jni/ffmpeg.c:200: error: undefined reference to 'av_frame_alloc'
  
  jni/ffmpeg.c:201: error: undefined reference to 'av_frame_alloc'
  
  jni/ffmpeg.c:209: error: undefined reference to 'av_register_all'
  
  jni/ffmpeg.c:210: error: undefined reference to 'avfilter_register_all'
  
  jni/ffmpeg.c:45: error: undefined reference to 'avformat_open_input'
  
  jni/ffmpeg.c:50: error: undefined reference to 'avformat_find_stream_info'
  
  jni/ffmpeg.c:56: error: undefined reference to 'av_find_best_stream'
  
  jni/ffmpeg.c:63: error: undefined reference to 'av_opt_set_int'
  
  jni/ffmpeg.c:66: error: undefined reference to 'avcodec_open2'
  
  jni/ffmpeg.c:67: error: undefined reference to 'av_log'
  
  jni/ffmpeg.c:78: error: undefined reference to 'avfilter_get_by_name'
  
  jni/ffmpeg.c:79: error: undefined reference to 'avfilter_get_by_name'
  
  jni/ffmpeg.c:80: error: undefined reference to 'avfilter_inout_alloc'
  
  jni/ffmpeg.c:81: error: undefined reference to 'avfilter_inout_alloc'
  
  jni/ffmpeg.c:85: error: undefined reference to 'avfilter_graph_alloc'
  
  jni/ffmpeg.c:98: error: undefined reference to 'avfilter_graph_create_filter'
  
  jni/ffmpeg.c:106: error: undefined reference to 'avfilter_graph_create_filter'
  
  jni/ffmpeg.c:113: error: undefined reference to 'av_int_list_length_for_size'
  
  jni/ffmpeg.c:113: error: undefined reference to 'av_opt_set_bin'
  
  jni/ffmpeg.c:116: error: undefined reference to 'av_log'
  
  jni/ffmpeg.c:131: error: undefined reference to 'av_strdup'
  
  jni/ffmpeg.c:142: error: undefined reference to 'av_strdup'
  
  jni/ffmpeg.c:147: error: undefined reference to 'avfilter_graph_parse_ptr'
  
  jni/ffmpeg.c:151: error: undefined reference to 'avfilter_graph_config'
  
  jni/ffmpeg.c:155: error: undefined reference to 'avfilter_inout_free'
  
  jni/ffmpeg.c:156: error: undefined reference to 'avfilter_inout_free'
  
  jni/ffmpeg.c:218: error: undefined reference to 'av_read_frame'
  
  jni/ffmpeg.c:223: error: undefined reference to 'avcodec_decode_video2'
  
  jni/ffmpeg.c:230: error: undefined reference to 'av_frame_get_best_effort_timestamp'
  
  jni/ffmpeg.c:233: error: undefined reference to 'av_buffersrc_add_frame_flags'
  
  jni/ffmpeg.c:234: error: undefined reference to 'av_log'
  
  jni/ffmpeg.c:240: error: undefined reference to 'av_buffersink_get_frame'
  
  jni/ffmpeg.c:171: error: undefined reference to 'av_rescale_q'
  
  jni/ffmpeg.c:246: error: undefined reference to 'av_frame_unref'
  
  jni/ffmpeg.c:248: error: undefined reference to 'av_frame_unref'
  
  jni/ffmpeg.c:251: error: undefined reference to 'av_packet_unref'
  
  jni/ffmpeg.c:254: error: undefined reference to 'avfilter_graph_free'
  
  jni/ffmpeg.c:255: error: undefined reference to 'avcodec_close'
  
  jni/ffmpeg.c:256: error: undefined reference to 'avformat_close_input'
  
  jni/ffmpeg.c:257: error: undefined reference to 'av_frame_free'
  
  jni/ffmpeg.c:258: error: undefined reference to 'av_frame_free'
  
  jni/include/libavutil/error.h:111: error: undefined reference to 'av_strerror'
  
  collect2.exe: error: ld returned 1 exit status
  
  make: *** [obj/local/armeabi/libffmpeg.so] Error 1

  6)MediaCodec, MediaExtractor,MediaRecord,MediaMuxer
  finally i planned to combine AndroidFastImageProcessing with MediaCodec, MediaExtractor,MediaRecord,MediaMuxer.
  so i try to Extract audio from video using mediamuxer
  https://gist.github.com/sayan801/9a39ccad0818d2b3499a
  I use mp4 video (MIME Type video/avc that have 2 tracks audio and video) to extract audio
  but the resultant file is corrupted (just 4 kb)

  I think this question is another view of the existing problem
  if anybody experienced this problem please guide me
  Thanks

• ffmpeg - android ndk build assembler messages bad instruction

  17 septembre 2016, par Madhavan Malolan

  I have compiled the latest ffmpeg source using the following build script adapted from Telegram :

  #!/bin/bash
  
  #apply fix http://permalink.gmane.org/gmane.comp.video.ffmpeg.devel/203198
  
  
  
  function build_one {
  
  
  
  echo "Cleaning..."
  
  make clean
  
  
  
  echo "Configuring..."
  
  
  
  ./configure \
  
  --cc=$CC \
  
  --nm=$NM \
  
  --enable-stripping \
  
  --arch=$ARCH \
  
  --cpu=$CPU \
  
  --target-os=linux \
  
  --enable-cross-compile \
  
  --yasmexe=$NDK/prebuilt/darwin-x86_64/bin/yasm \
  
  --prefix=$PREFIX \
  
  --enable-pic \
  
  --disable-shared \
  
  --enable-static \
  
  --cross-prefix=$CROSS_PREFIX \
  
  --sysroot=$PLATFORM \
  
  --extra-cflags="-Os -DANDROID $OPTIMIZE_CFLAGS -fPIE -pie --static" \
  
  --extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib -lc -lm -ldl" \
  
  --extra-libs="-lgcc" \
  
  \
  
  --enable-version3 \
  
  --enable-gpl \
  
  \
  
  --disable-doc \
  
  --disable-avx \
  
  \
  
  --disable-everything \
  
  --disable-network \
  
  --disable-zlib \
  
  --disable-debug \
  
  --disable-programs \
  
  --disable-network \
  
  \
  
  --enable-pthreads \
  
  --enable-protocol=file \
  
  --enable-decoder=h264 \
  
  --enable-decoder=gif \
  
  --enable-demuxer=mov \
  
  --enable-demuxer=gif \
  
  --enable-hwaccels \
  
  --enable-runtime-cpudetect \
  
  --enable-asm \
  
  $ADDITIONAL_CONFIGURE_FLAG
  
  
  
  #echo "continue?"
  
  #read
  
  make -j8 install
  
  
  
  }
  
  
  
  NDK=~/Downloads/android-ndk-r12b/
  
  
  
  #arm platform
  
  PLATFORM=$NDK/platforms/android-9/arch-arm
  
  PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64
  
  LD=$PREBUILT/bin/arm-linux-androideabi-ld
  
  AR=$PREBUILT/bin/arm-linux-androideabi-ar
  
  NM=$PREBUILT/bin/arm-linux-androideabi-nm
  
  GCCLIB=$PREBUILT/lib/gcc/arm-linux-androideabi/4.9/libgcc.a
  
  ARCH=arm
  
  CC=$PREBUILT/bin/arm-linux-androideabi-gcc
  
  CROSS_PREFIX=$PREBUILT/bin/arm-linux-androideabi-
  
  
  
  #arm v5
  
  CPU=armv5te
  
  OPTIMIZE_CFLAGS="-marm -march=$CPU"
  
  PREFIX=./android/$CPU
  
  ADDITIONAL_CONFIGURE_FLAG="--disable-armv6 --disable-armv6t2 --disable-vfp --disable-neon"
  
  build_one
  
  
  
  #arm v7n
  
  CPU=armv7-a
  
  OPTIMIZE_CFLAGS="-marm -march=$CPU"
  
  PREFIX=./android/$CPU
  
  ADDITIONAL_CONFIGURE_FLAG=--enable-neon
  
  build_one
  
  
  
  #x86 platform
  
  PLATFORM=$NDK/platforms/android-9/arch-x86
  
  PREBUILT=$NDK/toolchains/x86-4.9/prebuilt/darwin-x86_64
  
  LD=$PREBUILT/bin/i686-linux-android-ld
  
  AR=$PREBUILT/bin/i686-linux-android-ar
  
  NM=$PREBUILT/bin/i686-linux-android-nm
  
  GCCLIB=$PREBUILT/lib/gcc/i686-linux-android/4.9/libgcc.a
  
  ARCH=x86
  
  CC=$PREBUILT/bin/i686-linux-android-gcc
  
  CROSS_PREFIX=$PREBUILT/bin/i686-linux-android-
  
  
  
  CPU=i686
  
  OPTIMIZE_CFLAGS="-march=$CPU"
  
  PREFIX=./android/$CPU
  
  ADDITIONAL_CONFIGURE_FLAG="--disable-mmx --disable-yasm"
  
  build_one

  I copied the contents of the android/ folder generated to jni/ffmpeg/.
  I then tried to do a ndk-build, which fails with an error.

  The Android.mk file is as follows :

  LOCAL_PATH := $(call my-dir)
  
  
  
  LOCAL_MODULE    := avutil
  
  LOCAL_MODULE_FILENAME := libavutil
  
  LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libavutil.a
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)
  
  
  
  LOCAL_MODULE    := avformat
  
  LOCAL_MODULE_FILENAME := libavformat
  
      LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libavformat.a
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)
  
  
  
  LOCAL_MODULE    := avcodec
  
  LOCAL_MODULE_FILENAME := libavcodec
  
  LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libavcodec.a
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE    := avdevice
  
  LOCAL_MODULE_FILENAME := libavdevice
  
  LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libavdevice.a
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE    := avfilter
  
  LOCAL_MODULE_FILENAME := libavfilter
  
  LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libavfilter.a
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE    := postproc
  
  LOCAL_MODULE_FILENAME := libpostproc
  
  LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libpostproc.a
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE    := swresample
  
  LOCAL_MODULE_FILENAME := libswresample
  
  LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libswresample.a
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE    := swscale
  
  LOCAL_MODULE_FILENAME := libswscale
  
  LOCAL_SRC_FILES := ./ffmpeg/armv7-a/lib/libswscale.a
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  
  
  include $(CLEAR_VARS)
  
  LOCAL_PRELINK_MODULE := false
  
  
  
  LOCAL_MODULE    := ffmpeg
  
  LOCAL_CFLAGS    := -w -std=c11 -Os -DNULL=0 -DSOCKLEN_T=socklen_t -DLOCALE_NOT_USED -D_LARGEFILE_SOURCE=1 -D_FILE_OFFSET_BITS=64
  
  LOCAL_CFLAGS    += -Drestrict='' -D__EMX__ -DOPUS_BUILD -DFIXED_POINT -DUSE_ALLOCA -DHAVE_LRINT -DHAVE_LRINTF -fno-math-errno
  
  LOCAL_CFLAGS    += -DANDROID_NDK -DDISABLE_IMPORTGL -fno-strict-aliasing -fprefetch-loop-arrays -DAVOID_TABLES -DANDROID_TILE_BASED_DECODE -DANDROID_ARMV6_IDCT -ffast-math -D__STDC_CONSTANT_MACROS
  
  LOCAL_CPPFLAGS  := -DBSD=1 -ffast-math -Os -funroll-loops -std=c++11
  
  LOCAL_LDLIBS    := -ljnigraphics -llog -lz -latomic
  
  LOCAL_STATIC_LIBRARIES := avformat avcodec avutil avfilter avdevice postproc swresample swscale
  
  LOCAL_SRC_FILES := ffmpeg.c
  
  
  
  include $(BUILD_SHARED_LIBRARY)

  The error thrown is :

  [armeabi-v7a] Compile thumb : ffmpeg <= ffmpeg.c
  /var/folders/2p/0jqlz1c94t537_53qn3h8v9h0000gn/T//cc8Tnpth.s :
  Assembler messages :
  /var/folders/2p/0jqlz1c94t537_53qn3h8v9h0000gn/T//cc8Tnpth.s:4421 :
  Error : bad instruction

  cmovg r3,r8'
 /var/folders/2p/0jqlz1c94t537_53qn3h8v9h0000gn/T//cc8Tnpth.s:4422:
 Error: bad instruction

  cmovg r2,r3’
  /var/folders/2p/0jqlz1c94t537_53qn3h8v9h0000gn/T//cc8Tnpth.s:4424 :
  Error : bad instruction

  cmovl r1,r3'
 /var/folders/2p/0jqlz1c94t537_53qn3h8v9h0000gn/T//cc8Tnpth.s:4426:
 Error: bad instruction

  cmovg r3,r8’ make : ***
  [path/to/app/obj/local/armeabi-v7a/objs/ffmpeg/ffmpeg.o]
  Error 1

  I am guessing i got the compiler wrong somewhere. I am trying to build on a mac. Is there something i am missing ? I am trying to build only for armeabi-v7a.