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• Extract the time of the video with ffmpeg in Ubuntu

  6 mai 2017, par PHP Developer

  I am using Ubuntu 14.04.5 LTS 32 bit and ffmpeg to extract the time of a video.

  In Windows 10 the command works :

  /usr/bin/ffmpeg -i video.mp4 -vstats 2> & 1

  In Linux ffmpeg returns the error in red :

  At least one output file must be specified

  The error complete is here :

  ffmpeg version 2.4.3-1ubuntu1~trusty6 Copyright (c) 2000-2014 the FFmpeg developers
  
   built on Nov 22 2014 17:07:19 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1) 
  
  configuration: --prefix=/usr --extra-version='1ubuntu1~trusty6' --build-suffix=-ffmpeg --toolchain=hardened
  
  --extra-cflags= --extra-cxxflags= --libdir=/usr/lib/i386-linux-gnu --shlibdir=/usr/lib/i386-linux-gnu --incdir=/
  
  usr/include/i386-linux-gnu --enable-gpl --enable-shared --disable-stripping --enable-avresample 
  
  --enable-avisynth --enable-fontconfig --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray 
  
  --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfreetype --enable-libfribidi
  
   --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus
  
  --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libspeex --enable-libssh
  
  --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
  
  --enable-opengl --enable-x11grab --enable-libxvid --enable-libx265 --enable-libdc1394 --enable-libiec61883
  
  --enable-libzvbi --enable-libzmq --enable-frei0r --enable-libx264 --enable-libsoxr --enable-openal
  
  --enable-libopencv  
  
  libavutil      54.  7.100 / 54.  7.100  
  
  libavcodec     56.  1.100 / 56.  1.100  
  
  libavformat    56.  4.101 / 56.  4.101  
  
  libavdevice    56.  0.100 / 56.  0.100  
  
  libavfilter     5.  1.100 /  5.  1.100  
  
  libavresample   2.  1.  0 /  2.  1.  0  
  
  libswscale      3.  0.100 /  3.  0.100  
  
  libswresample   1.  1.100 /  1.  1.100  
  
  libpostproc    53.  0.100 / 53.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':  
  
  Metadata:
  
  major_brand     : mp42
  
  minor_version   : 0
  
  compatible_brands: mp41isom
  
  creation_time   : 2017-01-29 15:42:02
  
  location        : -21.6646-46.7394/
  
  location-eng    : -21.6646-46.7394/  
  
  Duration: 00:01:49.43, start: 0.000000, bitrate: 1171 kb/s
  
  Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv), 640x360 [SAR 1:1 DAR 16:9], 992 kb/s,
  
  15.01 fps, 15 tbr, 30k tbn, 60 tbc (default)
  
  Metadata:
  
    creation_time   : 2017-01-29 15:42:02
  
    handler_name    : VideoHandler
  
    encoder         : AVC Coding
  
  Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 174 kb/s (default)
  
  Metadata:
  
    creation_time   : 2017-01-29 15:42:02
  
    handler_name    : SoundHandler
  
  At least one output file must be specified

  How can I fix this problem ?

• Couldn't open https stream - protocol not found (ffmpeg with openssl)

  25 avril 2017, par Victor Ponomarenko

  I received from compiled ffmpeg with openssl next message : Protocol not found. I’m testing on hls over https.

  The ffmpeg is 3.3 and openssl is 1.0.0a versions.

  I have next configure script :

  ./configure \
  
  --target-os=linux \
  
  --incdir=$BUILD_DIR/include/$ABI \
  
  --libdir=$BUILD_DIR/lib/$ABI \
  
  --prefix=$BUILD_DIR/lib/$ABI \
  
  --enable-cross-compile \
  
  --extra-libs="-lgcc" \
  
  --arch=$ARCH \
  
  --cc=$PREBUILT/bin/$HOST-gcc \
  
  --cross-prefix=$PREBUILT/bin/$HOST- \
  
  --nm=$PREBUILT/bin/$HOST-nm \
  
  --sysroot=$PLATFORM \
  
  --extra-cflags="$OPTIMIZE_CFLAGS -I${OPENSSL_INCLUDE_DIR}" \
  
  --extra-cxxflags="I${OPENSSL_INCLUDE_DIR}" \
  
  --extra-ldflags="-Wl,-rpath-link=${PLATFORM}usr/lib -L${PLATFORM}usr/lib -nostdlib -lc -lm -ldl -llog -lz -L${OPENSSL_BUILD_DIR}/${ABI}  $openssl_addi_ldflags -lssl -lcrypto" \
  
  --disable-static \
  
  --disable-ffplay \
  
  --disable-ffmpeg \
  
  --disable-ffprobe \
  
  --disable-ffserver \
  
  --disable-doc \
  
  --disable-symver \
  
  --disable-postproc \
  
  --disable-gpl \
  
  --disable-encoders \
  
  --disable-muxers \
  
  --disable-bsfs \
  
  --disable-protocols \
  
  --disable-indevs \
  
  --disable-outdevs \
  
  --disable-devices \
  
  --enable-shared \
  
  --enable-small \
  
  --enable-encoder=png \
  
  --enable-openssl \
  
  --enable-runtime-cpudetect \
  
  --enable-protocol=file,ftp,http,https,httpproxy,hls,mmsh,mmst,pipe,rtmp,rtmps,rtmpt,rtmpts,rtp,sctp,srtp,tcp,udp \
  
  --pkg-config=$(which pkg-config) \
  
  $ADDITIONAL_CONFIGURE_FLAG || die "Couldn't configure ffmpeg!"

  Before I configured it I received errors like openssl not found. I fixed that, but i try to load stream which works over https, I receives Protocol not found. Also, I think this is weird, after configuration https is missed in enabled protocols list.

  Enabled protocols:
  
  ffrtmphttp        hls               mmsh              rtmp          srtp
  
  file              http              mmst              rtmpt         tcp
  
  ftp               httpproxy         pipe              rtp           udp

  ---

  Update 23.04.2017

  My openssl build script :

  # environment variables
  
  top_root=$PWD
  
  src_root=${top_root}/src
  
  patch_root=${top_root}/patches
  
  dist_root=${top_root}/libs/openssl
  
  dist_bin_root=${dist_root}/bin
  
  dist_include_root=${dist_root}/include
  
  dist_lib_root=${dist_root}/lib
  
  build_log=${top_root}/openssl_build.log
  
  
  
  # create our folder structure
  
  cd ${top_root}
  
  test -d ${src_root} || mkdir -p ${src_root}
  
  test -d ${dist_root} || mkdir -p ${dist_root}
  
  test -d ${dist_bin_root} || mkdir -p ${dist_bin_root}
  
  test -d ${dist_include_root} || mkdir -p ${dist_include_root}
  
  test -d ${dist_lib_root} || mkdir -p ${dist_lib_root}
  
  touch ${build_log}
  
  
  
  rm -f ${build_log}
  
  
  
  echo "Building openssl-android ..."
  
  
  
  test -d ${src_root}/openssl-android || \
  
      git clone https://github.com/guardianproject/openssl-android.git ${src_root}/openssl-android >> ${build_log} 2>&1 || \
  
      die "Couldn't clone openssl-android repository!"
  
  cd ${src_root}/openssl-android
  
  
  
  ${NDK}/ndk-build >> ${build_log} 2>&1 || die "Couldn't build openssl-android!"
  
  
  
  # copy the versioned libraries
  
  #cp -r ${src_root}/openssl-android/libs/armeabi/lib*.so --parents ${dist_lib_root}/.
  
  rsync -a --include '*/' --include '*.so' --exclude '*' ${src_root}/openssl-android/libs/ ${dist_lib_root}/
  
  # copy the executables
  
  #cp -r ${src_root}/openssl-android/libs/armeabi/openssl ${dist_bin_root}/. # work only for one abi folder
  
  rsync -a --include '*/openssl' --exclude '*.so' ${src_root}/openssl-android/libs/ ${dist_bin_root}/
  
  #cp -r ${src_root}/openssl-android/libs/armeabi/ssltest ${dist_bin_root}/. # work only for one abi folder
  
  rsync -a --include '*/ssltest' --exclude '*.so' ${src_root}/openssl-android/libs/ ${dist_bin_root}/
  
  # copy the headers
  
  cp -r ${src_root}/openssl-android/include/* ${dist_include_root}/.
  
  
  
  cd ${top_root}

  Will thankful for any help.

• FFMPEG build still resulting in Illegal instruction on raspberry pi ZERO, but not PI 2+

  3 mai 2017, par zyeek

  The process in which I do it configures the lib and ffmpeg files on the zero then move over to a pi 3 to make and install it (for speed).

  Build process :

  # x264
  
  git clone git://git.videolan.org/x264.git
  
  cd x264
  
  sudo ./configure --host=arm-unknown-linux-gnueabi --enable-shared --disable-opencl
  
  sudo make
  
  sudo make install
  
  sudo ldconfig
  
  
  
  # FFMPEG
  
  git clone git://source.ffmpeg.org/ffmpeg.git
  
  cd ffmpeg
  
  sudo ./configure --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree
  
  sudo make
  
  sudo make install

  I tried following this cross compile type build but complained I was missing a C compiler, but GCC was installed. SO I just went to follow my previous method.

  Results of trying to run it :

  pi@raspberrypi:~ $ ffmpeg -f v4l2 -i /dev/video0 -c:v libx264 -preset ultrafast -crf 0 http://localhost:8090/feed1.ffm
  
  ffmpeg version N-85747-gc4be288 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 4.9.2 (Raspbian 4.9.2-10)
  
    configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree
  
    libavutil      55. 61.100 / 55. 61.100
  
    libavcodec     57. 93.100 / 57. 93.100
  
    libavformat    57. 72.101 / 57. 72.101
  
    libavdevice    57.  7.100 / 57.  7.100
  
    libavfilter     6. 88.100 /  6. 88.100
  
    libswscale      4.  7.101 /  4.  7.101
  
    libswresample   2.  8.100 /  2.  8.100
  
    libpostproc    54.  6.100 / 54.  6.100
  
  Input #0, video4linux2,v4l2, from '/dev/video0':
  
    Duration: N/A, start: 682.500534, bitrate: 110592 kb/s
  
      Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x360, 110592 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
  
  [tcp @ 0x2cba570] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  Wed May  3 12:30:16 2017 127.0.0.1 - - [GET] "/feed1.ffm HTTP/1.1" 200 4175
  
  [tcp @ 0x2cbf1b0] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  No pixel format specified, yuv422p for H.264 encoding chosen.
  
  Use -pix_fmt yuv420p for compatibility with outdated media players.
  
  Wed May  3 12:30:16 2017 127.0.0.1 - - [POST] "/feed1.ffm HTTP/1.1" 200 0
  
  Illegal instruction