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• how play ogg/ape/wv/wma using ffmpeg

  25 novembre 2013, par user2361120

  I'm trying decode ogg,ape,wma,wv file formats
  I have posted the code below, but I'm having too much noise at the output

   av_init_packet(&packet);
  
          fmt_ctx = avformat_alloc_context();
  
  
  
          if ((ret = avformat_open_input(&fmt_ctx, szfile, NULL, NULL)) < 0)
  
          {
  
              LOGE("Cannot open input file\n");
  
          }
  
          if ((ret = avformat_find_stream_info(fmt_ctx, NULL)) < 0)
  
          {
  
              LOGE("Cannot find stream information\n");
  
          }
  
  
  
          /* select the audio stream */
  
          ret = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_AUDIO, -1, -1, &dec, 0);
  
          if (ret < 0)
  
          {
  
              LOGE("Cannot find a audio stream in the input file\n");
  
          }
  
  
  
          audio_stream_index = ret;
  
          dec_ctx = fmt_ctx->streams[audio_stream_index]->codec;
  
  
  
          LOGE(" ogg code %d codec id%d\n",AV_CODEC_ID_VORBIS,dec_ctx->codec_id);
  
  
  
          LOGE("avcodec_find_decoder\n");
  
  
  
  
  
          dec = avcodec_find_decoder(dec_ctx->codec_id);
  
                          if (!dec) {
  
  
  
                __android_log_print(ANDROID_LOG_INFO, "BroovPlayer", "avcodec_find_decoder failed %d Name:%s\n", dec_ctx->codec_id, dec_ctx->codec_name);
  
  
  
  
  
                          }
  
  
  
  
  
          if ((ret = avcodec_open2(dec_ctx, dec, NULL)) < 0)
  
          {
  
              LOGE("Cannot open audio decoder\n");
  
          }
  
  
  
  
  
  
  
  
  
          //dec_ctx->sample_fmt = AV_SAMPLE_FMT_S16P;
  
          LOGS("Stage 5 sample fmt %d",dec_ctx->sample_fmt);
  
          LOGE("Stage 5");
  
          LOGD("........%d", packet.size);
  
          while (1)
  
          {
  
  
  
                 if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
  
                 {
  
                     //LOGE("Stage........... %d",ret);
  
                     break;
  
                 }
  
                 if (packet.stream_index == audio_stream_index)
  
                 {
  
                         avcodec_get_frame_defaults(frame);
  
                         got_frame = 0;
  
                        // LOGE("file size=%d packet_index=%d",packet.size,packet.dts);
  
  
  
  
  
                         ret = avcodec_decode_audio4(dec_ctx, frame, &got_frame, &packet);
  
                       //  LOGE("len=%d",ret);
  
                         if (ret < 0)
  
                         {
  
                             LOGE("Error decoding audio\n");
  
                             continue;
  
                         }
  
  
  
                         if (!got_frame) {
  
                                      /* stop sending empty packets if the decoder is finished */
  
                                      if (!packet.data && dec->capabilities & CODEC_CAP_DELAY)
  
                                          //flush_complete = 1;
  
                                      continue;
  
                                  }
  
  
  
                         if (got_frame)
  
                         {
  
                             // LOGE("begin frame decode\n");
  
                              int data_size = av_samples_get_buffer_size(NULL, dec_ctx->channels,frame->nb_samples,dec_ctx->sample_fmt, 1);
  
                             // LOGE("after frame decode\n");
  
  
  
                              jbyte *bytes = (*env)->GetByteArrayElements(env, array, NULL);
  
                              memcpy(bytes, frame->data[0], data_size); //
  
                              (*env)->ReleaseByteArrayElements(env, array, bytes, 0);
  
                              (*env)->CallVoidMethod(env, obj,play, array, data_size);
  
  
  
                         }
  
                         packet.size -= ret;
  
                         packet.data += ret;
  
                         packet.pts = AV_NOPTS_VALUE;
  
  
  
  
  
                   }
  
            }
  
  
  
                 av_free_packet(&packet);
  
  
  
  
  
  
  
              when ,i am playing ogg/ape/wv audio file format .
  
  
  
  
  
  
  
            please help me to minimize the noise, as less as possible

  or if any other approach is there to decode these file formats then please let me know

  thanks

• Avplayer can not play streaming link from youtune on ios 7

  12 septembre 2015, par thaitujim

  I have a problem. Im trying to play audio streamming from youtube response.
  When i fecth youtube to get real Stream audio. And then i get real link

  example in this case is : "https://r6---sn-8qj-nbol.googlevideo.com/videoplayback?id=3c9bf82a23c991cb&itag=140&source=youtube&requiressl=yes&mv=m&ms=au&mm=31&gcr=vn&ratebypass=yes&mime=audio/mp4&gir=yes&clen=3662991&lmt=1394274529113749&dur=230.574&signature=232B6692726E12E9CFAEAC0C3990648710FCAE04.733EBD94E30ED230299CFA2E993577D656E18457&sver=3&fexp=907259,930666,932404,943909,947209,947215,948124,952302,952605,952901,953745,953913,957103,957105,957201&key=dg_yt0&upn=_bm8tftRoZM&mt=1415673491&ip= XXX.XXX.XXX.XXX &ipbits=0&expire=1415695122&sparams=ip,ipbits,expire,id,itag,source,requiressl,mv,ms,mm,gcr,ratebypass,mime,gir,clen,lmt,dur"

  with itag = 140, this link contain only audio format.

  and this problem here.
  when i handle it by Avplayer, i work well on IOS 8 device. but on IOS 7 device. it’s not working. Does Anybody can help me fix it or give me any solution.

  my code is very simple.

  self.mSongPlayer = [[AVPlayer alloc] initWithURL:urlAudio] ;
  self.mSongPlayer play] ;

  with urlAudio link is this link above.

  i tried with normal Stream link. example is : http://www.abstractpath.com/files/audiosamples/sample.mp3
  and it work normaly on same ios7 and ios8.

  thanks everybody.

• Laravel FFMpeg - FFMpeg cannot edit existing files in-place

  28 septembre 2020, par wlaskovic

  After I wanted to upload a video in the queue was returned a failed job.

  


   [2020-09-25 13:24:25][125] Processing: App\Jobs\ConvertVideoForStreaming <br /> [2020-09-25 13:24:26][125] Failed:     App\Jobs\ConvertVideoForStreaming&#xA;

  


  So I've took from the DB failed_jobs table the response and run the following :

  


    C:\ffmpeg\bin\ffmpeg.exe -y -i "C:\wamp64\www\laravel-stream\storage\app/public\WF3UL8fJTSE7BMxa.mp4" -threads 12 -vcodec libx264 -acodec libmp3lame -b:v 500k -refs 6 -coder 1 -sc_threshold 40 -flags +loop -me_range 16 -subq 7 -i_qfactor 0.71 -qcomp 0.6 -qdiff 4 -trellis 1 -b:a 128k -vf "[in]scale=720:360 [out]" -pass 1 -passlogfile "C:\Users\wlask\AppData\Local\Temp\ffmpeg-passes5f6dd36a4519fd1fev/pass-5f6dd36a452c9" "C:\wamp64\www\laravel-stream\storage\app/public\WF3UL8fJTSE7BMxa.mp4"


  


  Which returned the following :

  


  ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 10.2.1 (GCC) 20200726
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\wamp64\www\laravel-stream\storage\app/public\WF3UL8fJTSE7BMxa.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41isomavc1
    creation_time   : 2015-08-07T09:13:02.000000Z
  Duration: 00:00:30.53, start: 0.000000, bitrate: 411 kb/s
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x270 [SAR 1:1 DAR 16:9], 301 kb/s, 30 fps, 30 tbr, 30 tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2015-08-07T09:13:02.000000Z
      handler_name    : L-SMASH Video Handler
      encoder         : AVC Coding
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 112 kb/s (default)
    Metadata:
      creation_time   : 2015-08-07T09:13:02.000000Z
      handler_name    : L-SMASH Audio Handler


  


  


  Output C :\wamp64\www\laravel-stream\storage\app/public\WF3UL8fJTSE7BMxa.mp4 same as Input #0 - exiting

  


  FFmpeg cannot edit existing files in-place.

  


  


  This was returned after i've run the command from DB failed jobs table return.

  


  How should I solve this ?