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• Couldn't open file with iFrameExtractor

  21 octobre 2012, par why

  I has built ffmpeg and iFrameExtractor with ios5.1 successful, But when I play the video, the log shows "Couldn't open file"

  // Register all formats and codecs
  
      avcodec_register_all();
  
      av_register_all();
  
  
  
      // Open video file
  
      if(avformat_open_input(&pFormatCtx, [moviePath cStringUsingEncoding:NSASCIIStringEncoding], NULL, NULL) != 0) {
  
          av_log(NULL, AV_LOG_ERROR, "Couldn't open file\n");
  
          goto initError;
  
      }

  This is my configure file for ffmpeg 0.11.1 :

  #!/bin/tcsh -f
  
  
  
  rm -rf compiled/*
  
  
  
  ./configure \
  
  --cc=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc \
  
  --as='/usr/local/bin/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc' \
  
  --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk \
  
  --target-os=darwin \
  
  --arch=arm \
  
  --cpu=cortex-a8 \
  
  --extra-cflags='-arch armv7' \
  
  --extra-ldflags='-arch armv7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk' \
  
  --prefix=compiled/armv7 \
  
  --enable-cross-compile \
  
  --enable-nonfree \
  
  --disable-armv5te \
  
  --disable-swscale-alpha \
  
  --disable-doc \
  
  --disable-ffmpeg \
  
  --disable-ffplay \
  
  --disable-ffprobe \
  
  --disable-ffserver \
  
  --enable-decoder=h264 \
  
  --enable-decoder=svq3 \
  
  --disable-asm \
  
  --disable-bzlib \
  
  --disable-gpl \
  
  --disable-shared \
  
  --enable-static \
  
  --disable-mmx \
  
  --disable-neon \
  
  --disable-decoders \
  
  --disable-muxers \
  
  --disable-demuxers \
  
  --disable-devices \
  
  --disable-parsers \
  
  --disable-encoders \
  
  --enable-protocols \
  
  --disable-filters \
  
  --disable-bsfs \
  
  --disable-postproc \
  
  --disable-debug 

• FFMPEG 1.0 ANDROID NDK R8B

  6 février 2013, par user1613977

  I have tried to compile the last version of ffmpeg with the android ndk r8b, but i always have errors and i dont know how to solve them. I am reading this tutorial http://www.roman10.net/how-to-build-ffmpeg-for-android/ but the script doesnt work with my environment, i am using this :
   Ubuntu 12.04 LTS.
   Intel Core i7.
   Android ndk r8b
   Last version ffmeg (1.0)

  Basically i want to encode films from one format to other.

  And that is the script that i am using :

  NDK=../android-ndk-r8b
  
  PLATFORM=$NDK/platforms/android-8/arch-arm/
  
  PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86
  
  function build_r8b
  
  {
  
  bash configure \
  
  --disable-shared \
  
  --enable-static \
  
  --enable-gpl \
  
  --enable-version3 \
  
  --enable-nonfree \
  
  --disable-doc \
  
  --disable-ffmpeg \
  
  --disable-ffplay \
  
  --disable-ffprobe \
  
  --disable-ffserver \
  
  --disable-avdevice \
  
  --disable-avfilter \
  
  --disable-postproc \
  
  --enable-small \
  
  --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
  
  --enable-cross-compile \
  
  --target-os=linux \
  
  --extra-cflags="-I$PLATFORM/usr/include" \
  
  --extra-ldflags="-L$PLATFORM/usr/lib -nostdlib" \
  
  --arch=arm \
  
  --disable-symver \
  
  --disable-debug \
  
  --disable-stripping \
  
  $ADDITIONAL_CONFIGURE_FLAG
  
  sed -i 's/HAVE_LRINT 0/HAVE_LRINT 1/g' config.h
  
  sed -i 's/HAVE_LRINTF 0/HAVE_LRINTF 1/g' config.h
  
  sed -i 's/HAVE_ROUND 0/HAVE_ROUND 1/g' config.h
  
  sed -i 's/HAVE_ROUNDF 0/HAVE_ROUNDF 1/g' config.h
  
  sed -i 's/HAVE_TRUNC 0/HAVE_TRUNC 1/g' config.h
  
  sed -i 's/HAVE_TRUNCF 0/HAVE_TRUNCF 1/g' config.h
  
  make clean
  
  make  -j4 install
  
  $PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o
  
  $PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib   -L$PLATFORM/usr/lib  -soname libffmpeg.so -shared -nostdlib  -z,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a -lc -lm -lz -ldl -llog  --warn-once  --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/libgcc.a
  
  }
  
  #arm v7vfpv3
  
  CPU=armv7-a
  
  OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU "
  
  PREFIX=./android/$CPU
  
  ADDITIONAL_CONFIGURE_FLAG=
  
  #build_one
  
  build_r8b

  And that is the terminal result

  jllarraz@ubuntu:~/Descargas/ffmpeg$ bash build_android.sh
  
  /android-ndk-r8b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc is unable to create an executable file.
  
  C compiler test failed.
  
  
  
  If you think configure made a mistake, make sure you are using the latest
  
  version from Git.  If the latest version fails, report the problem to the
  
  ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  
  Include the log file "config.log" produced by configure as this will help
  
  solving the problem.
  
  make: execvp: ./version.sh: Permiso denegado
  
  make: execvp: ./version.sh: Permiso denegado
  
  HOSTCC  doc/print_options.o
  
  CC  cmdutils.o
  
  CC  libavdevice/alldevices.o
  
  CC  libavdevice/avdevice.o
  
  In file included from doc/print_options.c:104:0:
  
  ./libavcodec/options_table.h: En la función ‘show_codec_opts’:
  
  ./libavcodec/options_table.h:85:1: aviso: ‘sub_id’ es obsoleto (declarado en  ./libavcodec/avcodec.h:1505) [-Wdeprecated-declarations]
  
  ./libavcodec/options_table.h:149:1: aviso: ‘luma_elim_threshold’ es obsoleto (declarado en ./libavcodec/avcodec.h:1740) [-Wdeprecated-declarations]
  
  ./libavcodec/options_table.h:150:1: aviso: ‘chroma_elim_threshold’ es obsoleto (declarado en ./libavcodec/avcodec.h:1747) [-Wdeprecated-declarations]
  
  ./libavcodec/options_table.h:284:1: aviso: ‘color_table_id’ es obsoleto (declarado en ./libavcodec/avcodec.h:1986) [-Wdeprecated-declarations]
  
  ./libavcodec/options_table.h:307:1: aviso: ‘inter_threshold’ es obsoleto (declarado en ./libavcodec/avcodec.h:2049) [-Wdeprecated-declarations]
  
  ./libavcodec/options_table.h:312:1: aviso: ‘quantizer_noise_shaping’ es obsoleto (declarado en ./libavcodec/avcodec.h:2056) [-Wdeprecated-declarations]
  
  cmdutils.c:52:21: error fatal: version.h: No existe el archivo o el directorio
  
  compilación terminada.
  
  make: *** [cmdutils.o] Error 1
  
  make: *** Se espera a que terminen otras tareas....
  
  build_android.sh: línea 59: ../android-ndk-r8b/toolchains/arm-linux-androideabi- 4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-ar: Permiso denegado
  
  build_android.sh: línea 60: ../android-ndk-r8b/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-ld: Permiso denegado

• How to upload a video through PHP, and transcode it via FFmpeg

  29 mai 2017, par PBXAI

  Currently I am building a video streaming platform and I need a way to upload my videos, through multiple resolutions to my Wowza server. I am currently running Ubuntu with Nginx, PHP and Wowza so I want to be able to, when the user uploads the video, encode it to 1080p, 720p, 480p, and 360p. How would I do this ?