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• getting a lot of errors when reading udp stream with avconv

  5 août 2015, par eladm26

  I’m trying to read a udp video stream and I’m getting mostly errors :)
  here is my input and output :

  avconv   -i udp://**.**.**.**:**** output.ts
  
  avconv version 11.4, Copyright (c) 2000-2014 the Libav developers
  
    built on Jul 14 2015 12:43:36 with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
  
  [mpeg2video @ 0x25a7060] Invalid frame dimensions 0x0.
  
      Last message repeated 13 times
  
  [mpegts @ 0x2582040] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, mpegts, from 'udp://239.1.1.1:59001':
  
    Duration: N/A, start: 17336.030511, bitrate: 24640 kb/s
  
    Program 3
  
      Stream #0.0[0x31]: Video: mpeg2video (Main), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 24000 kb/s, 29.97 fps, 90k tbn, 59.94 tbc
  
      Stream #0.1[0x34](eng): Audio: ac3, 48000 Hz, 5.1, fltp, 448 kb/s
  
      Stream #0.2[0x35](spa): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
  
  File 'output.ts' already exists. Overwrite ? [y/N] y
  
  Output #0, mpegts, to 'output.ts':
  
    Metadata:
  
      encoder         : Lavf56.1.0
  
      Stream #0.0: Video: mpeg2video, yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 90k tbn, 29.97 tbc
  
      Metadata:
  
        encoder         : Lavc56.1.0 mpeg2video
  
      Stream #0.1(eng): Audio: mp2, 48000 Hz, stereo, s16, 384 kb/s
  
      Metadata:
  
        encoder         : Lavc56.1.0 mp2
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mpeg2video (native) -> mpeg2video (native))
  
    Stream #0:1 -> #0:1 (ac3 (native) -> mp2 (native))
  
  Press ctrl-c to stop encoding
  
  [mpeg2video @ 0x25c85e0] warning: first frame is no keyframe
  
  Continuity check failed for pid 49 expected 12 got 5 bitrate=3922.8kbits/s
  
  [mpegts @ 0x2582040] Continuity check failed for pid 52 expected 6 got 1
  
  [mpegts @ 0x2582040] Continuity check failed for pid 53 expected 7 got 14
  
  [mpegts @ 0x2582040] Continuity check failed for pid 0 expected 4 got 1
  
  [mpeg2video @ 0x25c85e0] ac-tex damaged at 2 53
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 19 38
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 18 54
  
  [mpeg2video @ 0x25c85e0] ac-tex damaged at 1 39
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 48 55
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 2 56
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 17 40
  
  [mpeg2video @ 0x25c85e0] ac-tex damaged at 5 60
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 1 61
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 16 41
  
  [mpeg2video @ 0x25c85e0] ac-tex damaged at 15 46
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 6 62
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 24 42
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 16 47
  
  [mpeg2video @ 0x25c85e0] mb incr damaged
  
  [mpeg2video @ 0x25c85e0] ac-tex damaged at 3 44
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 8 63
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 11 65
  
  [mpeg2video @ 0x25c85e0] ac-tex damaged at 1 66
  
  [mpeg2video @ 0x25c85e0] invalid mb type in P Frame at 42 50
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 9 51
  
  [mpeg2video @ 0x25c85e0] ac-tex damaged at 45 67
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 48 52
  
  [mpeg2video @ 0x25c85e0] MVs not available, ER not possible.
  
  [mpegts @ 0x2582040] PES packet size mismatch
  
      Last message repeated 1 times
  
  [ac3 @ 0x25c8b00] exponent out-of-range
  
  [ac3 @ 0x25c8b00] error decoding the audio block
  
  [mpegts @ 0x2582040] Continuity check failed for pid 49 expected 13 got 5
  
  [mpegts @ 0x2582040] Continuity check failed for pid 52 expected 12 got 14
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 97 65
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 1 4
  
  [mpeg2video @ 0x25c85e0] invalid cbp at 18 5
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 1 6
  
  [mpeg2video @ 0x25c85e0] mb incr damaged
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 34 8
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 8 9
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 6 11
  
  [mpeg2video @ 0x25c85e0] invalid cbp at 5 18
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 13 19
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 3 20
  
  [mpeg2video @ 0x25c85e0] 00 motion_type at 16 21
  
  [mpeg2video @ 0x25c85e0] invalid cbp at 3 22
  
  [mpeg2video @ 0x25c85e0] invalid mb type in B Frame at 4 23
  
  [mpeg2video @ 0x25c85e0] invalid mb type in B Frame at 3 24

  I’ve searched stack overflow and couldn’t find any similar.
  maybe it has something to do with avconv cant handle the udp frames fast enough ?
  I lost any hope so any help is very welcomed.

  Thanks.

• OpenGL (GLEW) + FFMPEG + VS2010 release build

  6 décembre 2015, par rickhik

  Currently I am working on a application that uses OpenGL (GLEW) and FFMPEG (libav’s) in Visual Studio 2010. The GLEW libs are included as Additional Libraries. The libav is set via a header file with extern "c" and pragma comment lib.

  The application opens a OpenGL window which draws some quads with textures via FFMPEG. I want to use this application for my volunteer job at a TV station of a Childrens Hospital.

  The problem I have is building a release version of my project. When I am building a Debug version it all works fine. I get a OpenGL Window with the quads. When I change Debug into Release and start the Debugger, it gives me the message "entry point of procedure __GLEW_EXT_framebuffer_object not found in DLL avcodec-56.dll", which is a bit strange to me because of the fact that the GLEW is not part of the avcodec-56.dll ?

  I can solve this issue by going to the project settings -> Linker -> Optimization and switch References from Yes(/OPT:REF) to No(/OPT:NOREF). I start the debugger to build the solution and it works as well. Now when I go to the Release folder of the project and start the build executable, the OpenGL Window stays black without giving me an error message.

  I hope you guys can help me out.

  @michael-iv I saw you had a similar issue

• Build FFmpeg with Freetype2 for ARM

  28 avril 2016, par Pawel Cala

  I’m trying to build FFmpeg binary file with freetype library included ( I need it for drawtext filter ). Unfortunately I cannot configure ffmpeg properly and every try ends with "freetype not found" error.

  PS I’ve tried to build guardian-ffmpeg project but i’m getting errors during configure process.

  PS2 Building plain ffmpeg works perfectly well

  Configuration script :

  make distclean &./configure --target-os=linux \
  
  --cross-prefix=arm-linux-androideabi- \
  
  --arch=arm \
  
  --cpu=armv7-a \
  
  --enable-libfreetype --enable-filter=drawtext \ #!Freetype params
  
  --disable-network \
  
  --disable-ffplay \
  
  --disable-ffprobe \
  
  --disable-ffserver \
  
  --enable-protocol=file \
  
  --sysroot=${ANDROID_NDK_ROOT_PATH}/platforms/${ANDROID_API_VERSION}/arch-arm \
  
  --prefix=build/armeabi-v7a \
  
  --disable-asm \
  
  --extra-cflags='-DANDROID -Ifreetype2/ -I${ANDROID_NDK_ROOT_PATH}/sources/cxx-stl/system/include -march=armv7-a -mfloat-abi=softfp' \
  
  --extra-ldflags='-Wl,--fix-cortex-a8 -Lfreetype2/ -L../android-libs -Wl,-rpath-link,../android-libs' \
  
  --extra-cxxflags='-Wno-multichar -fno-exceptions -fno-rtti'
  
  make -j6 && make install || exit 0

  Directories sctructure :

  ffmpeg/
  
     -ffmpeg dirs/
  
     -freetype2/
  
     -rest of ffmpeg files ( including configure, make, etc )

  I’ve checked patch sources in guardian-project and I’ve found that ffmpeg configure file might need some changes in require_libfreetype method ?!

  Thanks in advance ( and sorry for my bad english )

  EDIT :
  Building on OSX Mavericks,
  Last 3 lines of config.log ; OSX hasn’t got pkg-config therefore false in 2nd line :

  require_libfreetype
  
  false --exists --print-errors freetype
  
  ERROR: freetype not found

  EDIT :
  SOLUTION !!!

  I’ve manadged to solve my issue. I’ve used Xubuntu 14.04 64bit + Freetype 2.5.3 + newest FFmpeg repo + install linux package "pkg_config" and small modifications in ffmpeg configure script ( find pkg_config and check initialization variable )

  config file for freetype :

  NDK_BASE=/home/dpc/Documents/android-ndk-r9d/
  
  NDK_PROCESSOR=x86_64
  
  NDK_PLATFORM_LEVEL=9
  
  NDK_ABI=arm
  
  NDK_COMPILER_VERSION=4.6
  
  
  
  # Android NDK setup
  
  NDK_PLATFORM_LEVEL=9
  
  NDK_ABI=arm
  
  NDK_COMPILER_VERSION=4.6
  
  NDK_SYSROOT=$NDK_BASE/platforms/android-$NDK_PLATFORM_LEVEL/arch-$NDK_ABI
  
  NDK_UNAME=`uname -s | tr '[A-Z]' '[a-z]'`
  
  if [ $NDK_ABI = "x86" ]; then
  
      HOST=i686-linux-android
  
      NDK_TOOLCHAIN=$NDK_ABI-$NDK_COMPILER_VERSION
  
  else
  
      HOST=$NDK_ABI-linux-androideabi
  
      NDK_TOOLCHAIN=$HOST-$NDK_COMPILER_VERSION
  
  fi
  
  NDK_TOOLCHAIN_BASE=$NDK_BASE/toolchains/$NDK_TOOLCHAIN/prebuilt/$NDK_UNAME-$NDK_PROCESSOR
  
  echo "dpc:" $NDK_TOOLCHAIN_BASE
  
  
  
  CC="$NDK_TOOLCHAIN_BASE/bin/$HOST-gcc --sysroot=$NDK_SYSROOT"
  
  LD=$NDK_TOOLCHAIN_BASE/bin/$HOST-ld
  
  STRIP=$NDK_TOOLCHAIN_BASE/bin/$HOST-strip
  
  PREFIX=$(pwd)/build
  
  
  
  simple_config(){
  
  make clean
  
  ./configure --host=arm-linux-androideabi --without-zlib --without-png --prefix=
  
  make -j4
  
  make install DESTDIR=$(pwd)
  
  }
  
  
  
  complex_config(){
  
  
  
      ./configure \
  
      CC="$CC" \
  
      LD="$LD" \
  
      CFLAGS="-std=gnu99 -mcpu=cortex-a8 -marm -mfloat-abi=softfp -mfpu=neon" \
  
      --host=$HOST \
  
      --with-sysroot="$NDK_SYSROOT" \
  
      --enable-static \
  
      --disable-shared \
  
      --prefix=$PREFIX
  
      --without-bzip2
  
  
  
      make -j4
  
      make install
  
  }
  
  
  
  
  
  make clean
  
  complex_config

  ffmpeg config file :

  #!/bin/sh
  
  
  
  ANDROID_NDK_ROOT_PATH=/home/dpc/Documents/android-ndk-r9d
  
  ANDROID_API_VERSION=android-9
  
  #export PATH=${ANDROID_NDK_ROOT_PATH}:${ANDROID_NDK_ROOT_PATH}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/:$PATH
  
  export PATH=${ANDROID_NDK_ROOT_PATH}:${ANDROID_NDK_ROOT_PATH}/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/:$PATH
  
  echo $PATH
  
  #export PKG_CONFIG_PATH=/home/dpc/Documents/freetype-2.5.3/build/lib/pkgconfig/
  
  #echo $PKG_CONFIG_PATH
  
  
  
  #armv7-a neon
  
  #export ARCH=armeabi-v7a-neon
  
  #./configure --target-os=linux --cross-prefix=arm-linux-androideabi- --arch=arm --cpu=armv7-a --sysroot=${ANDROID_NDK_ROOT_PATH}/platforms/${ANDROID_API_VERSION}/arch-arm --disable-avdevice --disable-decoder=h264_vdpau  --prefix=build/armeabi-v7a-neon --extra-cflags='-DANDROID -I${ANDROID_NDK_ROOT_PATH}/sources/cxx-stl/system/include -march=armv7-a -mfloat-abi=softfp -mfpu=neon' --extra-ldflags='-Wl,--fix-cortex-a8 -L../android-libs -Wl,-rpath-link,../android-libs' --extra-cxxflags='-Wno-multichar -fno-exceptions -fno-rtti'
  
  #make -j6 && make install && make distclean|| exit 0
  
  
  
  #armv7-a
  
  export ARCH=armeabi-v7a
  
  ./configure --target-os=linux \
  
  --cross-prefix=arm-linux-androideabi- \
  
  --arch=arm \
  
  --enable-libfreetype \
  
  --cpu=armv7-a \
  
  --sysroot=${ANDROID_NDK_ROOT_PATH}/platforms/${ANDROID_API_VERSION}/arch-arm \
  
  --disable-avdevice \
  
  --disable-decoder=h264_vdpau  \
  
  --prefix=build/armeabi-v7a \
  
  --extra-cflags='-DANDROID -I${ANDROID_NDK_ROOT_PATH}/sources/cxx-stl/system/include -march=armv7-a -mfloat-abi=softfp' \
  
  --extra-ldflags='-Wl,--fix-cortex-a8 -L../android-libs -Wl,-rpath-link,../android-libs' \
  
  --extra-cxxflags='-Wno-multichar -fno-exceptions -fno-rtti'
  
  make -j6 && make install && make distclean|| exit 0

  Hope it helps someone (cc : @SinhHo )