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• FFmpeg "no frame !" encoding error

  9 juillet 2015, par oleg.semen

  I’m trying to compress video by scaling it. Here is how
  But I’m getting this error :

  D/FFMpeg﹕ progress[h264 @ 0x42124970] no frame!
  
  D/FFMpeg﹕ progress[aac @ 0x42122fe0] Input buffer exhausted before END element found

  here is whole log :

   Loading FFmpeg for armv7-neon CPU
  
   start
  
   Running publishing updates method
  
   progressWARNING: linker: /data/data/com.example.ffmpeg/files/ffmpeg has text relocations. This is wasting memory and is a security risk. Please fix.
  
   progressffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  
   progress  built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
  
   progress  configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
   progress  libavutil      54.  7.100 / 54.  7.100
  
   progress  libavcodec     56.  1.100 / 56.  1.100
  
   progress  libavformat    56.  4.101 / 56.  4.101
  
   progress  libavdevice    56.  0.100 / 56.  0.100
  
   progress  libavfilter     5.  1.100 /  5.  1.100
  
   progress  libswscale      3.  0.100 /  3.  0.100
  
   progress  libswresample   1.  1.100 /  1.  1.100
  
   progress  libpostproc    53.  0.100 / 53.  0.100
  
   progress[h264 @ 0x42124970] no frame!
  
   progress[aac @ 0x42122fe0] Input buffer exhausted before END element found
  
   progressInput #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Movies/Instagram/VID_37551017_035953.mp4':
  
   progress  Metadata:
  
   progress    major_brand     : isom
  
   progress    minor_version   : 0
  
   progress    compatible_brands: isom3gp4
  
   progress    creation_time   : 2015-06-19 09:03:19
  
   progress  Duration: 00:00:03.20, start: 0.000000, bitrate: 2975 kb/s
  
   progress    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x640, 2911 kb/s, 15.22 fps, 14.92 tbr, 90k tbn, 180k tbc (default)
  
   progress    Metadata:
  
   progress      creation_time   : 2015-06-19 09:03:19
  
   progress      handler_name    : VideoHandle
  
   progress    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 101 kb/s (default)
  
   progress    Metadata:
  
   progress      creation_time   : 2015-06-19 09:03:19
  
   progress      handler_name    : SoundHandle

  Did I miss something in config ?
  Thanks.

• swscaler@0dd9e620 : deprecated pixel format used, make sure you did set range correctly"

  19 juin 2015, par Tariq

  I am decoding RTSP video stream with FFMpeg.
  At display time (call to cv::imshow(...)), I get the following exception :

  [swscaler @ 0d55e5c0] deprecated pixel format used, make sure you did
  set range correctly

  I am converting the pixel format from "AV_PIX_FMT_YUVJ420P" to "AV_PIX_FMT_YUV420P". Still getting the above exception. Any help is appreciated ;

  int Decodestream()
  
  {
  
      av_register_all();
  
      avdevice_register_all();
  
      avcodec_register_all();
  
      avformat_network_init();
  
  
  
      const char  *filenameSrc = "rtsp://192.168.1.67/gnz_media/second";
  
  
  
      AVCodecContext  *pCodecCtx;
  
      AVFormatContext *pFormatCtx = avformat_alloc_context();
  
  
  
      AVCodec * pCodec;
  
      AVFrame *pFrame, *pFrameRGB;
  
  
  
      if(avformat_open_input(&pFormatCtx,filenameSrc,NULL,NULL) != 0)
  
      {return -1;}
  
  
  
      if(av_find_stream_info(pFormatCtx) < 0)   
  
      {return -1;}
  
  
  
      av_dump_format(pFormatCtx, 0, filenameSrc, 0);
  
  
  
      int videoStream = 1;
  
  
  
      for(int i=0; i < pFormatCtx->nb_streams; i++)
  
      {
  
          if(pFormatCtx->streams[i]->codec->coder_type==AVMEDIA_TYPE_VIDEO)
  
          {
  
              videoStream = i;
  
              break;
  
          }
  
      }
  
  
  
      if(videoStream == -1) return -1 ;
  
  
  
      pCodecCtx = pFormatCtx->streams[videoStream]->codec;
  
  
  
      pCodec =avcodec_find_decoder(pCodecCtx->codec_id);
  
  
  
      if(pCodec==NULL)
  
      {return -1;} //codec not found
  
  
  
      if(avcodec_open2(pCodecCtx,pCodec,NULL) < 0)
  
      { return -1;}
  
  
  
      pFrame    = avcodec_alloc_frame();
  
      pFrameRGB = avcodec_alloc_frame();
  
  
  
      uint8_t *buffer;
  
  
  
      int numBytes;
  
  
  
      AVPixelFormat  pFormat;
  
  
  
      switch (pFormatCtx->streams[videoStream]->codec->pix_fmt) 
  
      {
  
      case AV_PIX_FMT_YUVJ420P : pFormat = AV_PIX_FMT_YUV420P; break;
  
      case AV_PIX_FMT_YUVJ422P : pFormat = AV_PIX_FMT_YUV422P; break;
  
      case AV_PIX_FMT_YUVJ444P : pFormat = AV_PIX_FMT_YUV444P; break;
  
      case AV_PIX_FMT_YUVJ440P : pFormat = AV_PIX_FMT_YUV440P; 
  
      default:
  
          pFormat = pFormatCtx->streams[videoStream]->codec->pix_fmt;
  
          break;
  
      }
  
  
  
      numBytes = avpicture_get_size(pFormat,pCodecCtx->width,pCodecCtx->height) ; 
  
  
  
      buffer = (uint8_t *) av_malloc(numBytes*sizeof(uint8_t));
  
  
  
      avpicture_fill((AVPicture *) pFrameRGB,buffer,pFormat,pCodecCtx->width,pCodecCtx->height);
  
  
  
      int res, frameFinished;
  
  
  
      AVPacket packet;
  
  
  
      while(res = av_read_frame(pFormatCtx,&packet)>=0)
  
      {
  
  
  
          if(packet.stream_index == videoStream){
  
  
  
              avcodec_decode_video2(pCodecCtx,pFrame,&frameFinished,&packet);
  
  
  
              if(frameFinished){
  
  
  
                  struct SwsContext * img_convert_ctx;
  
  
  
                  img_convert_ctx = sws_getCachedContext(NULL,pCodecCtx->width, pCodecCtx->height, pCodecCtx->pix_fmt,   pCodecCtx->width, pCodecCtx->height, AV_PIX_FMT_BGR24, SWS_BICUBIC, NULL, NULL,NULL);
  
  
  
                  sws_scale(img_convert_ctx, ((AVPicture*)pFrame)->data, ((AVPicture*)pFrame)->linesize, 0, pCodecCtx->height, ((AVPicture *)pFrameRGB)->data, ((AVPicture *)pFrameRGB)->linesize);
  
  
  
                  cv::Mat img(pFrame->height,pFrame->width,CV_8UC3,pFrameRGB->data[0]);
  
                  cv::imshow("display",img);
  
                  cvWaitKey(10);          
  
              }
  
          }
  
  
  
      }
  
      //Memory clean up code goes here 
  
  }

• "only position independent executables (PIE) are supported" error in FFMPEG Android Lollipop

  2 juin 2015, par Karthikeyan

  I am using FFMPEG support library to convert bunch of images to video. It works fine on earlier version of the android lollipop. But in the lollipop it generates the following error. ***error: only position independent executables (PIE) are supported.*** I know the PIE Security restrictions has been changed in lollipop, but i don’t know how to fix it.

  From my knowledge it may have two possible solutions,

  either

  we need to relocate the FFMPEG library assets to the SDCard and we have to refer them from our coding, if this is the answer what are all the steps to be followed ?

  or

  Is there any update in the FFMPEG library for android lollipop.

  If both are wrong can you provide me with the proper solution.

  Many thanks...

  Here is my code

     try {
  
              Log.e(LOGTAG, "started");
  
  
  
              String[] ffmpegCommand = {"/data/data/com.mobvcasting.mjpegffmpeg/ffmpeg", "-r", ""+p.getPreviewFrameRate(), "-b", "1000000", "-vcodec", "mjpeg", "-i", 
  
                      Environment.getExternalStorageDirectory().getPath() + "/req_images/frame_%05d.jpg", Environment.getExternalStorageDirectory().getPath() + "/req_images/video.mov"};
  
  
  
              ffmpegProcess = new ProcessBuilder(ffmpegCommand).redirectErrorStream(true).start();            
  
  
  
              OutputStream ffmpegOutStream = ffmpegProcess.getOutputStream();
  
              BufferedReader reader = new BufferedReader(new InputStreamReader(ffmpegProcess.getInputStream()));
  
  
  
              String line;
  
  
  
              Log.v(LOGTAG,"***Starting FFMPEG***");
  
              while ((line = reader.readLine()) != null)
  
              {
  
                  Log.v(LOGTAG,"***"+line+"***");
  
              }
  
              Log.v(LOGTAG,"***Ending FFMPEG***");
  
  
  
  
  
          } catch (IOException e) {
  
              e.printStackTrace();
  
          }
  
  
  
          if (ffmpegProcess != null) {
  
              ffmpegProcess.destroy();        
  
          }
  
          Log.e(LOGTAG, "Background done");