Recherche avancée

Sur d’autres sites (7065)

• Why does the new version of ffmpeg play non-interleaved http files so stuck ?

  22 juillet 2020, par fredirty2017
  


  • I use MAC's AVAssetWriter/AVAssetWriterInput to generate MP4, then upload it to the website, and then use the latest version (ffmpeg4.2 or 4.3) of ffplay to play the file as https file on Windows, but I find it is very stuck. I use the old version of ffmpeg For example, the 3.4 version is normal. By analyzing the old and new ffmpeg source code, the general problem is basically located, but the deeper reason is still unclear.

    


  


  • The audio and video frames recorded by MAC are partially (within 3 seconds) non-interleaved

    


  


  • The latest version of Window's ffplay will continue to reconnect http to Seek
In the mov.c file, it is found that the number of AVIndexEntry created by the new and old versions ffmpeg is different, because the read buffer size is determined by the calculation of ff_configure_buffers_for_index : the buffer_size of the new version of AVIOContext is only the default 16k, so the pre-step of mov_read_packet avio_seek finds that the pos of the next frame is not within the 16k range, which leads to reconnecting to http and seeking to a new position ; while the AVIOContext.buffer_size of the old version of ffmpeg has a size of M Bytes level, it will not trigger reconnection of http.

    


  


  • Further analysis found that ff_configure_buffers_for_index will be calculated based on the relative maximum offset of the AVIndexEntry of each stream, because the new version skips the opportunity to adjust the buffer_size because the pos_delta is greater than 1<<24.

    &#xA;

  &#xA;

  • But I don’t know why the new version of AVIndexEntry has this situation. Do you know why the "new" version has made this change ? And how to make the player plays as smoothly as the old version ?

    &#xA;

     void ff_configure_buffers_for_index(AVFormatContext *s, int64_t time_tolerance)
 {
     int ist1, ist2;
     int64_t pos_delta = 0;
     int64_t skip = 0;
     //We could use URLProtocol flags here but as many user applications do not use URLProtocols this would be unreliable
     const char *proto = avio_find_protocol_name(s->filename);

     if (!proto) {
         av_log(s, AV_LOG_INFO,
            "Protocol name not provided, cannot determine if input is local or "
            "a network protocol, buffers and access patterns cannot be configured "
            "optimally without knowing the protocol\n");
     }

     if (proto && !(strcmp(proto, "file") && strcmp(proto, "pipe") && strcmp(proto, "cache")))
         return;

     for (ist1 = 0; ist1 < s->nb_streams; ist1++) {
         AVStream *st1 = s->streams[ist1];
         for (ist2 = 0; ist2 < s->nb_streams; ist2++) {
             AVStream *st2 = s->streams[ist2];
             int i1, i2;

             if (ist1 == ist2)
                 continue;

             for (i1 = i2 = 0; i1 < st1->nb_index_entries; i1++) {
                 AVIndexEntry *e1 = &st1->index_entries[i1];
                 int64_t e1_pts = av_rescale_q(e1->timestamp, st1->time_base, AV_TIME_BASE_Q);

                 skip = FFMAX(skip, e1->size);
                 for (; i2 < st2->nb_index_entries; i2++) {
                     AVIndexEntry *e2 = &st2->index_entries[i2];
                     int64_t e2_pts = av_rescale_q(e2->timestamp, st2->time_base, AV_TIME_BASE_Q);
                     if (e2_pts - e1_pts < time_tolerance)
                         continue;
                     pos_delta = FFMAX(pos_delta, e1->pos - e2->pos);
                     av_log(s, AV_LOG_VERBOSE, "ff_configure_buffers_for_index  [%d, %d]  (%"PRId64", %"PRId64"):    %"PRId64"\n",  i1, i2, e1_pts, e2_pts, pos_delta);
                     break;
                 }
             }
         }
     }

     pos_delta *= 2;
     /* XXX This could be adjusted depending on protocol*/
     if (s->pb->buffer_size < pos_delta && pos_delta < (1<<24)) {
         av_log(s, AV_LOG_VERBOSE, "Reconfiguring buffers to size %"PRId64"\n", pos_delta);
         ffio_set_buf_size(s->pb, pos_delta);
         s->pb->short_seek_threshold = FFMAX(s->pb->short_seek_threshold, pos_delta/2);
     }

     if (skip < (1<<23)) {
         s->pb->short_seek_threshold = FFMAX(s->pb->short_seek_threshold, skip);
     }
 }


    &#xA;

  &#xA;

  &#xA;

• How to programmatically read an audio RTP stream using javacv and ffmpeg ?

  21 mai 2019, par Chris

  I am trying to read an audio RTP stream coming from ffmpeg in command line using javaCV. I create a DatagramSocket that listens to a specified port but can’t get the audio frames.

  I have tried with different types of buffer to play the audio to my speakers but I am getting a lot of "Invalid return value 0 for stream protocol" error messages with no audio in my speakers.

  I am running the following command to stream an audio file :

  ffmpeg -re -i /some/file.wav -ar 44100 -f mulaw -f rtp rtp ://127.0.0.1:7780

  And an excerpt of my code so far :

  public class FrameGrabber implements Runnable

  private static final TimeUnit SECONDS = TimeUnit.SECONDS;
  
  private InetAddress ipAddress;
  
  private DatagramSocket serverSocket;
  
  
  
  public FrameGrabber(Integer port) throws UnknownHostException, SocketException {
  
      super();
  
  
  
      this.ipAddress = InetAddress.getByName("192.168.44.18");
  
      serverSocket = new DatagramSocket(port, ipAddress);
  
  
  
  }
  
  
  
  public AudioFormat getAudioFormat() {
  
      float sampleRate = 44100.0F;
  
      // 8000,11025,16000,22050,44100
  
      int sampleSizeInBits = 16;
  
      // 8,16
  
      int channels = 1;
  
      // 1,2
  
      boolean signed = true;
  
      // true,false
  
      boolean bigEndian = false;
  
      // true,false
  
      return new AudioFormat(sampleRate, sampleSizeInBits, channels, signed, bigEndian);
  
  }
  
  
  
  @Override
  
  public void run() {
  
  
  
  
  
      byte[] buffer = new byte[2048];
  
      DatagramPacket packet = new DatagramPacket(buffer, buffer.length);
  
  
  
      DataInputStream dis = new DataInputStream(new ByteArrayInputStream(packet.getData(), packet.getOffset(), packet.getLength()));
  
  
  
  
  
      FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(dis);
  
      grabber.setFormat("mulaw");
  
      grabber.setSampleRate((int) getAudioFormat().getSampleRate());
  
      grabber.setAudioChannels(getAudioFormat().getChannels());
  
  
  
      SourceDataLine soundLine = null;
  
  
  
  
  
      try {
  
          grabber.start();
  
  
  
  
  
          if (grabber.getSampleRate() > 0 && grabber.getAudioChannels() > 0) {
  
  
  
              AudioFormat audioFormat = new AudioFormat(grabber.getSampleRate(), 16, grabber.getAudioChannels(), true, true);
  
  
  
              DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
  
              soundLine = (SourceDataLine) AudioSystem.getLine(info);
  
              soundLine.open(audioFormat);
  
  
  
              soundLine.start();
  
          }
  
  
  
          ExecutorService executor = Executors.newSingleThreadExecutor();
  
  
  
  
  
          while (true) {
  
  
  
              try {
  
                  serverSocket.receive(packet);
  
              } catch (IOException e) {
  
                  e.printStackTrace();
  
              }
  
  
  
              Frame frame = grabber.grab();
  
  
  
              //if (frame == null) break;
  
  
  
  
  
              if (frame != null && frame.samples != null) {
  
  
  
                  ShortBuffer channelSamplesFloatBuffer = (ShortBuffer) frame.samples[0];
  
                  channelSamplesFloatBuffer.rewind();
  
  
  
                  ByteBuffer outBuffer = ByteBuffer.allocate(channelSamplesFloatBuffer.capacity() * 2);
  
                  float[] samples = new float[channelSamplesFloatBuffer.capacity()];
  
  
  
                  for (int i = 0; i < channelSamplesFloatBuffer.capacity(); i++) {
  
                      short val = channelSamplesFloatBuffer.get(i);
  
                      outBuffer.putShort(val);
  
                  }
  
  
  
                  if (soundLine == null) return;
  
                  try {
  
                      SourceDataLine finalSoundLine = soundLine;
  
                      executor.submit(() -> {
  
                          finalSoundLine.write(outBuffer.array(), 0, outBuffer.capacity());
  
                          outBuffer.clear();
  
                      }).get();
  
                  } catch (InterruptedException interruptedException) {
  
                      Thread.currentThread().interrupt();
  
                  }
  
              }
  
  
  
          }
  
  
  
          /*
  
          executor.shutdownNow();
  
          executor.awaitTermination(1, SECONDS);
  
  
  
          if (soundLine != null) {
  
              soundLine.stop();
  
          }
  
  
  
          grabber.stop();
  
          grabber.release();*/
  
  
  
          } catch (ExecutionException ex) {
  
          System.out.println("ExecutionException");
  
          ex.printStackTrace();
  
      } catch (org.bytedeco.javacv.FrameGrabber.Exception ex) {
  
          System.out.println("FrameGrabberException");
  
          ex.printStackTrace();
  
      } catch (LineUnavailableException ex) {
  
          System.out.println("LineUnavailableException");
  
          ex.printStackTrace();
  
      }/* catch (InterruptedException e) {
  
          System.out.println("InterruptedException");
  
          e.printStackTrace();
  
      }*/
  
  
  
  
  
  }
  
  
  
  public static void main(String[] args) throws SocketException, UnknownHostException {
  
      Runnable apRunnable = new FrameGrabber(7780);
  
      Thread ap = new Thread(apRunnable);
  
      ap.start();
  
  }

  At this stage, I am trying to play the audio file in my speakers but I am getting the following logs :

  Task :FrameGrabber.main()
  Invalid return value 0 for stream protocol
  Invalid return value 0 for stream protocol
  Input #0, mulaw, from ’java.io.DataInputStream@474e6cea’ :
  Duration : N/A, bitrate : 352 kb/s
  Stream #0:0 : Audio : pcm_mulaw, 44100 Hz, 1 channels, s16, 352 kb/s
  Invalid return value 0 for stream protocol
  Invalid return value 0 for stream protocol
  Invalid return value 0 for stream protocol
  Invalid return value 0 for stream protocol
  ...

  What am I doing wrong ?

  Thanks in advance !

• i use vitamio-ffmpeg achieve filters function,who can help me to see [on hold]

  30 décembre 2015, par 陈腾明

  my cmd is :
  ffmpeg -y -i /storage/emulated/0/Foream/a.mp4 -i /storage/emulated/0/Foream/q.jpg -filter_complex [0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out] -map [out] -map 0:a -codec:a copy /storage/test.mp4

  • ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers

    built on Dec 30 2015 17:40:40 with gcc 4.8 (GCC)
    
    configuration: --arch=arm --disable-runtime-cpudetect    --target-os=linux --enable-cross-compile --cross-prefix=arm-linux-androideabi- --enable-version3 --enable-optimizations --enable-shared --disable-fast-unaligned --disable-static --disable-symver --disable-programs --disable-doc --disable-avdevice --disable-postproc --disable-encoders --disable-muxers --enable-muxer=mp4 --disable-devices --disable-demuxer=sbg --disable-demuxer=dts --disable-parser=dca --disable-decoder=dca --disable-decoder=svq3 --disable-debug --enable-network --enable-asm --prefix=/var/vitamio/FFmpeg-Vitamio-vitamio/build/android/armv6 --extra-cflags='-mthumb -std=c99 -O3 -Wall -pipe -fpic -fasm -finline-limit=300 -ffast-math -fstrict-aliasing -Werror=strict-aliasing -Wno-psabi -Wa,--noexecstack -fdiagnostics-color=always -DANDROID -DNDEBUG -I/var/openssl/OpenSSL-Vitamio-master/include -D__ARM_ARCH_5__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ -march=armv6 -msoft-float' --extra-ldflags='-lm -lz -Wl,--no-undefined -Wl,-z,no   WARNING: library configuration mismatch
    
    avutil      configuration: --arch=arm --disable-runtime-cpudetect    --target-os=linux --cross-prefix=arm-linux-androideabi- --enable-cross-compile --enable-version3 --enable-shared --disable-static --disable-symver --disable-programs --disable-doc --disable-avdevice --disable-encoders --disable-muxers --disable-devices --disable-everything --disable-protocols --disable-demuxers --disable-decoders --disable-bsfs --disable-debug --enable-optimizations --enable-filters --enable-parsers --disable-parser=hevc --enable-swscale --enable-network --enable-protocol=file --enable-protocol=http --enable-protocol=rtmp --enable-protocol=rtp --enable-protocol=mmst --enable-protocol=mmsh --enable-protocol=crypto --enable-protocol=hls --enable-demuxer=hls --enable-demuxer=mpegts --enable-demuxer=mpegtsraw --enable-demuxer=mpegvideo --enable-demuxer=concat --enable-demuxer=mov --enable-demuxer=flv --enable-demuxer=rtsp --enable-demuxer=mp3 --enable-demuxer=matroska --enable-decoder=mpeg4 --enable-decoder=mpegvideo --enable-de   avcodec     configuration: --arch=arm --disable-runtime-cpudetect

    —target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de avformat configuration : —arch=arm —disable-runtime-cpudetect
    — target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de avfilter configuration : —arch=arm —disable-runtime-cpudetect
    — target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de swscale configuration : —arch=arm —disable-runtime-cpudetect
    — target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de swresample configuration : —arch=arm —disable-runtime-cpudetect
    — target-os=linux —cross-prefix=arm-linux-androideabi- —enable-cross-compile —enable-version3 —enable-shared —disable-static —disable-symver —disable-programs —disable-doc —disable-avdevice —disable-encoders —disable-muxers —disable-devices —disable-everything —disable-protocols —disable-demuxers —disable-decoders —disable-bsfs —disable-debug —enable-optimizations —enable-filters —enable-parsers —disable-parser=hevc —enable-swscale —enable-network —enable-protocol=file —enable-protocol=http —enable-protocol=rtmp —enable-protocol=rtp —enable-protocol=mmst —enable-protocol=mmsh —enable-protocol=crypto —enable-protocol=hls —enable-demuxer=hls —enable-demuxer=mpegts —enable-demuxer=mpegtsraw —enable-demuxer=mpegvideo —enable-demuxer=concat —enable-demuxer=mov —enable-demuxer=flv —enable-demuxer=rtsp —enable-demuxer=mp3 —enable-demuxer=matroska —enable-decoder=mpeg4 —enable-decoder=mpegvideo —enable-de libavutil 52. 48.100 / 52. 48.100
    libavcodec 55. 39.100 / 55. 39.100
    libavformat 55. 19.104 / 55. 19.104
    libavfilter 3. 90.100 / 3. 90.100
    libswscale 2. 5.101 / 2. 5.101
    libswresample 0. 17.104 / 0. 17.104
    Splitting the commandline.
    Reading option ’-y’ ... matched as option ’y’ (overwrite output files) with argument ’1’.
    Reading option ’-i’ ... matched as input file with argument ’/storage/emulated/0/Foream/a.mp4’.
    Reading option ’-i’ ... matched as input file with argument ’/storage/emulated/0/Foream/q.jpg’.
    Reading option ’-filter_complex’ ... matched as option ’filter_complex’ (create a complex filtergraph) with argument
    ’[0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out]’.
    Reading option ’-map’ ... matched as option ’map’ (set input stream mapping) with argument ’[out]’.
    Reading option ’-map’ ... matched as option ’map’ (set input stream mapping) with argument ’0:a’.
    Reading option ’-codec:a’ ... matched as option ’codec’ (codec name) with argument ’copy’.
    Reading option ’/storage/emulated/0/Foream/test.mp4’ ... matched as output file.
    Finished splitting the commandline.
    Parsing a group of options : global .
    Applying option y (overwrite output files) with argument 1.
    Applying option filter_complex (create a complex filtergraph) with argument
    [0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out].
    Successfully parsed a group of options.
    Parsing a group of options : input file /storage/emulated/0/Foream/a.mp4.
    Successfully parsed a group of options.
    Opening an input file : /storage/emulated/0/Foream/a.mp4.
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] ISO : File Type Major Brand : mp42
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] File position before avformat_find_stream_info() is 810040
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] All info found
    rfps : 29.416667 0.016512
    rfps : 29.416667 0.016512
    rfps : 29.500000 0.012847
    rfps : 29.500000 0.012847
    rfps : 29.583333 0.009693
    rfps : 29.666667 0.007050
    rfps : 29.750000 0.004918
    rfps : 29.833333 0.003298
    rfps : 29.916667 0.002188
    rfps : 30.000000 0.001590
    rfps : 30.083333 0.001503
    rfps : 30.166667 0.001928
    rfps : 30.250000 0.002863
    rfps : 30.333333 0.004310
    rfps : 30.333333 0.004310
    rfps : 30.416667 0.006268
    rfps : 30.416667 0.006268
    rfps : 30.500000 0.008737
    rfps : 30.500000 0.008737
    rfps : 30.583333 0.011717
    rfps : 30.583333 0.011717
    rfps : 30.666667 0.015208
    rfps : 30.666667 0.015208
    rfps : 30.750000 0.019211
    rfps : 30.750000 0.019211
    rfps : 59.500000 0.019673
    rfps : 59.583333 0.016176
    rfps : 59.666667 0.013191
    rfps : 59.750000 0.010716
    rfps : 59.833333 0.008753
    rfps : 59.916667 0.007302
    rfps : 60.000000 0.006361
    rfps : 29.970030 0.001747
    rfps : 59.940060 0.006986
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb9270990] File position after avformat_find_stream_info() is 1684954
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’/storage/emulated/0/Foream/a.mp4’ :
    Metadata :
    major_brand : mp42

      minor_version   :  0
    
    
    
      compatible_brands:  isommp42
    
    
    
      creation_time   :  2015-11-07 12:30:11
    
    
    
      location        :     +22.5935+113.8685/
    
    
    
      location-eng    :     +22.5935+113.8685/
    
    
    
    Duration:  00:00:17.24 , start: 

    0.000000 , bitrate : 9934 kb/s

      Stream #0:0 (eng) , 21, 1/90000 : Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1280x720, 9488 kb/s , SAR   

    65536:65536 DAR 16:9 , 29.61 fps , 30.08 tbr , 90k tbn , 50 tbc
    (default)

      Metadata:
    
    
    
    rotate          :  90
    
    
    
    
    
    creation_time   :  2015-11-07 12:30:11
    
    
    
    
    
    handler_name    :  VideoHandle
    
    
    
      Stream #0:1 (eng) , 49, 1/48000 : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s  (default)
    
    
    
      Metadata:
    
    
    
    creation_time   :  2015-11-07 12:30:11
    
    
    
    
    
    handler_name    :  SoundHandle
    
    
    
      Successfully opened the file.
    
      Parsing a group of options: input file    /storage/emulated/0/Foream/q.jpg.
    
      Successfully parsed a group of options.
    
      Opening an input file: /storage/emulated/0/Foream/q.jpg.
    
      [mp3 @ 0xb924f040] Format mp3 detected only with low score of 1,    misdetection possible!
    
      [mp3 @ 0xb924f040] File position before avformat_find_stream_info()    is 0
    
      [mp3 @ 0xb9216ef0] Header missing
    
      [mp3 @ 0xb9216ef0] Header missing
    
      [mp3 @ 0xb9216ef0] Header missing
    
      [mp3 @ 0xb924f040] decoding for stream 0 failed
    
      [mp3 @ 0xb924f040] Could not find codec parameters for stream 0    (Audio: mp1, 0 channels, s16p): unspecified frame size Consider

    increasing the value for the ’analyzeduration’ and ’probesize’
    options
    [mp3 @ 0xb924f040] File position after avformat_find_stream_info() is 9590
    /storage/emulated/0/Foream/q.jpg : could not find codec parameters
    [AVIOContext @ 0xb9251990] Statistics : 9590 bytes read, 0 seeks
    [AVIOContext @ 0xb923e090] Statistics : 907698 bytes read, 1 seeks