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• Recorded & uploaded video from iphone device won't play in iphone

  11 juin 2019, par Sohil Chamadia

  I am facing an issue regarding :

  Recording video from iphone and uploading that video on my application(Develop in Wordpress Framework) then the video uploaded won’t play in iphone devices.

  This issue occurs only when I "Record video from iphone and then uploading that video into the application".If I upload existing video from iphone device then video will be played and it’s working fine. So please help to resolve this issue.I have used "FFmpeg library" to reduce the size of video.

  Below is the code which i have used to play video :

  <video preload="auto" width="320" height="240" controls=""><source src="abc.mp4" type="video/mp4">Your browser does not support the video tag.</source></video>

  When i click on video to play it then video is not play and cross sign is shown over the play button.Below i have attached screenshot of it :
  

• Encode raw PCM to aac using ffmpeg native AAC

  10 avril 2012, par newentry

  I am trying to convert raw PCM to aac .So i am trying to achieve it through ffmpeg.

  My ffmepg configuration

  —enable-cross-compile —arch=arm —cpu=armv6 —enable-asm —target-os=linux —disable-stripping —enable-neon —enable-version3 —disable-shared —enable-static —enable-gpl —enable-memalign-hack —cc=arm-linux-androideabi-gcc —ld=arm-linux-androideabi-ld —extra-cflags='-fPIC -DANDROID -D_thumb_ -mthumb -Wfatal-errors -Wno-deprecated -marm -march=armv6 ' —disable-everything —enable-encoder=aac —enable-decoder=h264 —enable-hwaccels —disable-ffmpeg —disable-ffplay —disable-ffprobe —disable-ffserver —disable-network —enable-filter=buffer —enable-filter=buffersink —disable-demuxer=v4l —disable-demuxer=v4l2 —disable-indev=v4l —disable-indev=v4l2

  avcodec_find_encoder(CODEC_ID_AAC)  find's the AAC encoder succesfully.
  
  
  
  audio_context= avcodec_alloc_context()
  
  avcodec_open(audio_context, audio_encoder)  failed to open aac 

  any idea ?

• How can I develop a 264 "codec format worked in VideoView API on android ?

  31 juillet 2018, par lscodex

  I have got a big problem. I have a video "tc10.264" I downloaded from live555.com. I can not play the video that using videoview,exoplayer and vitamio sdk
  on android.
  I know that the video is codec.it is not container like mp4,flv etc.
  Later, I played the video with "ffplay -f h264 tc10.264 " via on windows console.
  and ffmpeg shows me this spec.
  h264(baseline), yubj420p and 25 fps.

  Okay this video is exist.
  After, I downloaded ffmpeg from on ubuntu in virtual machine. And I build(compile) the ffmpeg with x264 it as shown below.

  my directory path is like ffmpeg > x264 and I compiled libx264.a for ffmpeg from x264 folder.

  Note : my android phone has architecturally armeabi_v7a

  There is build_android_arm.sh script.

  #!/bin/bash
  
  echo starting building .... 
  
  NDK=/home/lscodex/android-sdk/ndk-bundle
  
  PLATFORM=$NDK/platforms/android-19/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64
  
  PREFIX=./android/arm
  
  
  
  function build_one
  
  {
  
    ./configure \
  
    --prefix=$PREFIX \
  
    --enable-static \
  
    --enable-pic \
  
    --host=arm-linux \
  
    --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
  
    --sysroot=$PLATFORM
  
  
  
    make clean
  
    make
  
    make install
  
  }
  
  
  
  build_one
  
  
  
  echo Android ARM builds finished....

  After, I have a folder called android containing lib,include and bin files.So, I compiled script that shown below to achieve shared folder (".so") in ffmpeg folder.
  there is build_android_armeabi_v7a.sh script

  #!/bin/bash
  
  
  
  echo Android starting armeabi_v7a
  
  NDK=/home/lscodex/android-sdk/ndk-bundle
  
  PLATFORM=$NDK/platforms/android-19/arch-arm/
  
  PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64
  
  CPU=armeabi_v7a
  
  PREFIX=$(pwd)/android/$CPU
  
  
  
  GENERAL="\
  
  --enable-small \
  
  --enable-cross-compile \
  
  --extra-libs="-lgcc" \
  
  --arch=arm \
  
  --cc=$PREBUILT/bin/arm-linux-androideabi-gcc \
  
  --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \
  
  --nm=$PREBUILT/bin/arm-linux-androideabi-nm \
  
  --extra-cflags="-I../x264/android/arm/include" \
  
  --extra-ldflags="-L../x264/android/arm/lib" "
  
  
  
  
  
  MODULES="\
  
  --enable-gpl \
  
  --enable-libx264"
  
  
  
  H264TEST="\
  
  --enable-encoder=libx264 \
  
  --enable-encoder=libx264rgb \
  
  --enable-decoder=h264 \
  
  --enable-muxer=h264 \
  
  --enable-demuxer=h264 \
  
  --enable-parser=h264"
  
  
  
  function build_ARMv7
  
  {
  
    ./configure \
  
    --target-os=android \
  
    --prefix=$PREFIX \
  
    ${GENERAL} \
  
    --sysroot=$PLATFORM \
  
    --enable-shared \
  
    ${H264TEST} \
  
    --disable-static \
  
    --extra-cflags="-march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -fomit-frame-pointer -fstrict-aliasing -funswitch-loops -finline-limit=300" \
  
    --extra-ldflags="-Wl,-rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -nostdlib -lc -lm -ldl -llog" \
  
    --enable-zlib \
  
    ${MODULES} \
  
    --disable-doc \
  
    --enable-neon
  
  
  
    make clean
  
    make
  
    make install
  
  }
  
  
  
  
  
  build_ARMv7
  
  echo Android ARMv7-a builds finished

  finally, I obtained another an android folder that contain shared library.
  I integrated the files from the android studio. I created CMakeLists.txt and cpp folder.
  So, Everything is perfectly working, I think.
  this ndk code helping me for receive a duration of bugs_bunny.mp4 video.

  extern "C"
  
  JNIEXPORT jint JNICALL
  
  Java_com_lscodex_just_videoplayertesting2_VideoProcessing_videoDuration(
  
          JNIEnv *env,
  
          jobject obj,
  
          jstring input) {
  
  
  
  
  
      AVFormatContext *pFormatCtx = NULL;
  
  
  
       if(avformat_open_input(&pFormatCtx,convertStringFileToChar(env,input),NULL,NULL)<0){
  
           throwException(env,"Could not open input file ");
  
           loge("Could not open input file ");
  
           return 0;
  
       }
  
       if (avformat_find_stream_info(pFormatCtx,NULL)<0){
  
           throwException(env,"Failed to retrieve input stream information");
  
           loge("Failed to retrieve input stream information");
  
           return 0;
  
       }
  
  
  
      logd("I reached it here :) ");
  
  
  
  
  
      int64_t duration = pFormatCtx->duration;
  
      avformat_close_input(&pFormatCtx);
  
      avformat_free_context(pFormatCtx);
  
      return (jint) (duration / AV_TIME_BASE);
  
  }

  at least for mp4 video format.
  So, my question is, How can I run tc10.264 codec video format via ffmpeg on exoplayer or on videoview api ?