Sur d’autres sites (10032)

• FFMPEG Link error

  30 novembre 2014, par Thomas

  I’m trying to compile a modified version of this transcoding example from the FFMPEG site, I’ve used all the required includes and joined the libs using this :

  INCLUDEPATH += $$(FFMPEG_DEV_PATH)\include
  
      LIBS += -L$$(FFMPEG_DEV_PATH)\lib -lavformat -lavcodec -lavutil -lswscale -liconv -lz -lavfilter

  but I get this linking error that I can’t understand :

    "avio_close(AVIOContext*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "av_strerror(int, char*, unsigned long)", referenced from:
  
        av_make_error_string(char*, unsigned long, int) in PhVideoEncoder.o
  
    "av_rescale_q(long long, AVRational, AVRational)", referenced from:
  
        PhVideoEncoder::encode_write_frame(AVFrame*, unsigned int, int*) in PhVideoEncoder.o
  
    "av_frame_free(AVFrame**)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
        PhVideoEncoder::filter_encode_write_frame(AVFrame*, unsigned int) in PhVideoEncoder.o
  
        PhVideoEncoder::encode_write_frame(AVFrame*, unsigned int, int*) in PhVideoEncoder.o
  
    "av_read_frame(AVFormatContext*, AVPacket*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "avcodec_close(AVCodecContext*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "avcodec_open2(AVCodecContext*, AVCodec const*, AVDictionary**)", referenced from:
  
        PhVideoEncoder::open_input_file(char const*) in PhVideoEncoder.o
  
        PhVideoEncoder::open_output_file(char const*) in PhVideoEncoder.o
  
    "av_dump_format(AVFormatContext*, int, char const*, int)", referenced from:
  
        PhVideoEncoder::open_input_file(char const*) in PhVideoEncoder.o
  
        PhVideoEncoder::open_output_file(char const*) in PhVideoEncoder.o
  
    "av_frame_alloc()", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
        PhVideoEncoder::filter_encode_write_frame(AVFrame*, unsigned int) in PhVideoEncoder.o
  
    "av_free_packet(AVPacket*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "av_init_packet(AVPacket*)", referenced from:
  
        PhVideoEncoder::encode_write_frame(AVFrame*, unsigned int, int*) in PhVideoEncoder.o
  
    "av_opt_set_bin(void*, char const*, unsigned char const*, int, int)", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "av_register_all()", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "av_rescale_q_rnd(long long, AVRational, AVRational, AVRounding)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
        PhVideoEncoder::encode_write_frame(AVFrame*, unsigned int, int*) in PhVideoEncoder.o
  
    "av_write_trailer(AVFormatContext*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "avfilter_graph_free(AVFilterGraph**)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "avfilter_inout_free(AVFilterInOut**)", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "avformat_new_stream(AVFormatContext*, AVCodec const*)", referenced from:
  
        PhVideoEncoder::open_output_file(char const*) in PhVideoEncoder.o
  
    "avformat_open_input(AVFormatContext**, char const*, AVInputFormat*, AVDictionary**)", referenced from:
  
        PhVideoEncoder::open_input_file(char const*) in PhVideoEncoder.o
  
    "avcodec_copy_context(AVCodecContext*, AVCodecContext const*)", referenced from:
  
        PhVideoEncoder::open_output_file(char const*) in PhVideoEncoder.o
  
    "avcodec_find_decoder(AVCodecID)", referenced from:
  
        PhVideoEncoder::open_input_file(char const*) in PhVideoEncoder.o
  
    "avcodec_find_encoder(AVCodecID)", referenced from:
  
        PhVideoEncoder::open_output_file(char const*) in PhVideoEncoder.o
  
    "avfilter_get_by_name(char const*)", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "avfilter_graph_alloc()", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "avfilter_inout_alloc()", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "avformat_close_input(AVFormatContext**)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "avcodec_decode_audio4(AVCodecContext*, AVFrame*, int*, AVPacket const*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "avcodec_decode_video2(AVCodecContext*, AVFrame*, int*, AVPacket const*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "avcodec_encode_audio2(AVCodecContext*, AVPacket*, AVFrame const*, int*)", referenced from:
  
        PhVideoEncoder::encode_write_frame(AVFrame*, unsigned int, int*) in PhVideoEncoder.o
  
    "avcodec_encode_video2(AVCodecContext*, AVPacket*, AVFrame const*, int*)", referenced from:
  
        PhVideoEncoder::encode_write_frame(AVFrame*, unsigned int, int*) in PhVideoEncoder.o
  
    "avfilter_graph_config(AVFilterGraph*, void*)", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "avfilter_register_all()", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "avformat_free_context(AVFormatContext*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "avformat_write_header(AVFormatContext*, AVDictionary**)", referenced from:
  
        PhVideoEncoder::open_output_file(char const*) in PhVideoEncoder.o
  
    "av_get_sample_fmt_name(AVSampleFormat)", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "av_buffersink_get_frame(AVFilterContext*, AVFrame*)", referenced from:
  
        PhVideoEncoder::filter_encode_write_frame(AVFrame*, unsigned int) in PhVideoEncoder.o
  
    "avfilter_graph_parse_ptr(AVFilterGraph*, char const*, AVFilterInOut**, AVFilterInOut**, void*)", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "avformat_find_stream_info(AVFormatContext*, AVDictionary**)", referenced from:
  
        PhVideoEncoder::open_input_file(char const*) in PhVideoEncoder.o
  
    "av_interleaved_write_frame(AVFormatContext*, AVPacket*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
        PhVideoEncoder::encode_write_frame(AVFrame*, unsigned int, int*) in PhVideoEncoder.o
  
    "av_buffersrc_add_frame_flags(AVFilterContext*, AVFrame*, int)", referenced from:
  
        PhVideoEncoder::filter_encode_write_frame(AVFrame*, unsigned int) in PhVideoEncoder.o
  
    "avfilter_graph_create_filter(AVFilterContext**, AVFilter const*, char const*, char const*, void*, AVFilterGraph*)", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "av_get_default_channel_layout(int)", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "avformat_alloc_output_context2(AVFormatContext**, AVOutputFormat*, char const*, char const*)", referenced from:
  
        PhVideoEncoder::open_output_file(char const*) in PhVideoEncoder.o
  
    "av_get_channel_layout_nb_channels(unsigned long long)", referenced from:
  
        PhVideoEncoder::open_output_file(char const*) in PhVideoEncoder.o
  
    "av_frame_get_best_effort_timestamp(AVFrame const*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "av_log(void*, int, char const*, ...)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
        PhVideoEncoder::filter_encode_write_frame(AVFrame*, unsigned int) in PhVideoEncoder.o
  
        PhVideoEncoder::flush_encoder(unsigned int) in PhVideoEncoder.o
  
        PhVideoEncoder::open_input_file(char const*) in PhVideoEncoder.o
  
        PhVideoEncoder::open_output_file(char const*) in PhVideoEncoder.o
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
        PhVideoEncoder::encode_write_frame(AVFrame*, unsigned int, int*) in PhVideoEncoder.o
  
        ...
  
    "av_free(void*)", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "av_malloc(unsigned long)", referenced from:
  
        av_malloc_array(unsigned long, unsigned long) in PhVideoEncoder.o
  
    "av_strdup(char const*)", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "avio_open(AVIOContext**, char const*, int)", referenced from:
  
        PhVideoEncoder::open_output_file(char const*) in PhVideoEncoder.o

  I tried looking for missing libraries but with no luck... What am I missing ?

  EDIT

  Thanks to the first answer, I added the extern C stuff but I still face a few errors :

  Undefined symbols for architecture x86_64:
  
    "_av_buffersink_get_frame", referenced from:
  
        PhVideoEncoder::filter_encode_write_frame(AVFrame*, unsigned int) in PhVideoEncoder.o
  
    "_av_buffersrc_add_frame_flags", referenced from:
  
        PhVideoEncoder::filter_encode_write_frame(AVFrame*, unsigned int) in PhVideoEncoder.o
  
    "_avfilter_get_by_name", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "_avfilter_graph_alloc", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "_avfilter_graph_config", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "_avfilter_graph_create_filter", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "_avfilter_graph_free", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
    "_avfilter_graph_parse_ptr", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "_avfilter_inout_alloc", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "_avfilter_inout_free", referenced from:
  
        PhVideoEncoder::init_filter(FilteringContext*, AVCodecContext*, AVCodecContext*, char const*) in PhVideoEncoder.o
  
    "_avfilter_register_all", referenced from:
  
        PhVideoEncoder::PhVideoEncoder(QString) in PhVideoEncoder.o
  
  ld: symbol(s) not found for architecture x86_64

• IOException : Error running exec() Command, When calling FFmpeg method

  21 avril 2016, par kc ochibili

  i am trying to create a slide show mp4 using this ffmpeg method but i keep getting this IOException Error running exec(). Command when i click the button.

  here is my call

  ffmpegController = new FfmpegController(getTempDirectory(), new File(""));
  
  ffmpegController.createSlideshowFromImagesAndAudio(slideFrames, getAudioPath(), getOutPath(), 500, mCallbackResponse);

  Here is the source code of the small project.
  Here is the apk

  And here is my Error message

     Error running exec(). Command: [ffmpeg, -y, -i, /storage/emulated/0/TestFFmpeg/frame1.png, /storage/emulated/0/TestFFmpeg/temp/image-000.jpg]
  
  
  
   Working Directory: lib Environment: [VIBE_PIPE_PATH=/dev/pipes, ANDROID_ROOT=/system, EMULATED_STORAGE_SOURCE=/mnt/shell/emulated, LOOP_MOUNTPOINT=/mnt/obb, EMULATED_STORAGE_TARGET=/storage/emulated, ANDROID_BOOTLOGO=1, LD_LIBRARY_PATH=/vendor/lib:/system/lib, EXTERNAL_STORAGE=/storage/emulated/legacy, ANDROID_SOCKET_zygote=9, ANDROID_DATA=/data, PATH=/sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin, ANDROID_ASSETS=/system/app, ASEC_MOUNTPOINT=/mnt/asec, BOOTCLASSPATH=/system/framework/core.jar:/system/framework/core-junit.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/framework2.jar:/system/framework/telephony-common.jar:/system/framework/voip-common.jar:/system/framework/mms-common.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/apache-xml.jar:/system/framework/sec_edm.jar:/system/framework/seccamera.jar:/system/framework/secocsp.jar:/system/framework/sc.jar:/system/framework/scrollpause.jar:/system/framework/stayrotation.jar:/system/framework/smartfaceservice.jar:/system/framework/sws.jar:/system/framework/WfdCommon.jar, ANDROID_PROPERTY_WORKSPACE=8,66560, SECONDARY_STORAGE=/storage/extSdCard:/storage/UsbDriveA:/storage/UsbDriveB:/storage/UsbDriveC:/storage/UsbDriveD:/storage/UsbDriveE:/storage/UsbDriveF, ANDROID_STORAGE=/storage]

  Here is my Activity code :

  public class MainActivity extends Activity {
  
  
  
  Button testButton;
  
  EditText errorLogView;
  
  
  
  TinyDB tinydb;// sharedPreference Wrapper
  
  static Context context;
  
  @Override
  
  protected void onCreate(Bundle savedInstanceState) {
  
      super.onCreate(savedInstanceState);
  
      setContentView(R.layout.activity_main);
  
      context = getApplicationContext();
  
      tinydb = new TinyDB(context); // sharedPreference Wrapper
  
      testButton = (Button) findViewById(R.id.test_Image_View);
  
      errorLogView = (EditText) findViewById(R.id.errorlog);
  
      setListeners();
  
  }
  
  
  
  public void setListeners(){
  
      testButton.setOnClickListener(new OnClickListener() {
  
  
  
          @Override
  
          public void onClick(View v) {
  
              // TODO Auto-generated method stub
  
              Bitmap frame1Bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
  
              //Saves the image to the file system an returns the path
  
              String firstFrame = tinydb.putImagePNG("TestFFmpeg", "frame1.png", frame1Bitmap);
  
              String secondFrame = tinydb.putImagePNG("TestFFmpeg", "frame2.png", frame1Bitmap);
  
              String thirdFrame = tinydb.putImagePNG("TestFFmpeg", "frame3.png", frame1Bitmap);
  
  
  
  
  
              ArrayList<clip> slideFrames = new ArrayList<clip>();
  
              slideFrames.add(new Clip(firstFrame));
  
              slideFrames.add(new Clip(secondFrame));
  
              slideFrames.add(new Clip(thirdFrame));
  
  
  
              copyResourceSoundToSDCard();
  
  
  
              FfmpegController ffmpegController = null;
  
              try {
  
  
  
                  ffmpegController = new FfmpegController(getTempDirectory(), new File(""));
  
                  ffmpegController.createSlideshowFromImagesAndAudio(slideFrames, getAudioPath(), getOutPath(), 500, mCallbackResponse);
  
  
  
              } catch (FileNotFoundException e) {
  
                  // TODO Auto-generated catch block
  
                  e.printStackTrace();
  
                  toast("FileNotFoundException");
  
                  toast(e.getLocalizedMessage());
  
              } catch (IOException e) {
  
                  // TODO Auto-generated catch block
  
                  toast("IOException");
  
                  toast(e.getLocalizedMessage());
  
                  errorLogView.setText(e.getLocalizedMessage());
  
                  e.printStackTrace();
  
              } catch (Exception e) {
  
                  // TODO Auto-generated catch block
  
                  e.printStackTrace();
  
                  toast("Exception ");
  
                  toast(e.getLocalizedMessage());
  
              }           
  
          }
  
      });
  
  
  
  
  
  }
  
  
  
  public Clip getAudioPath(){
  
      Clip mAudPath = null;
  
      try {
  
          mAudPath = new Clip(new File(tinydb.getString("audpath")).getCanonicalPath());
  
      } catch (IOException e1) {
  
          // TODO Auto-generated catch block
  
          e1.printStackTrace();
  
      }
  
      return mAudPath;
  
  }
  
  
  
  public Clip getOutPath(){
  
      String videoName = ("myTestVideo.mp4");
  
      String saveFolder = ("TestFFmpeg/videos");
  
      String movieFullPath = setupAudioFolder(saveFolder, videoName);
  
  
  
      Clip outPath = null;
  
      try {
  
          outPath = new Clip(new File(movieFullPath).getCanonicalPath());
  
      } catch (IOException e1) {
  
          // TODO Auto-generated catch block
  
          e1.printStackTrace();
  
      }
  
      tinydb.putString("outhPath", outPath.path);
  
  
  
      return outPath;
  
  }
  
  
  
  public void copyResourceSoundToSDCard(){
  
      try {
  
          copyRawFile(context, R.raw.screens_shot_sound, getResaveDirectory(), "755");
  
      } catch (IOException e) {
  
          // TODO Auto-generated catch block
  
          e.printStackTrace();
  
      } catch (InterruptedException e) {
  
          // TODO Auto-generated catch block
  
          e.printStackTrace();
  
      }
  
  }
  
  
  
   private File getResaveDirectory(){
  
  
  
      String audioName = ("ShotSound.wav");
  
      String saveFolder = ("TestFFmpeg");
  
      File appRootFile;
  
      String path = setupAudioFolder(saveFolder, audioName);
  
      tinydb.putString("audpath",  path);
  
      appRootFile = new File(path);
  
      return appRootFile;
  
    }
  
  
  
  public String setupAudioFolder(String theFolder, String theImageName){
  
      File sdcard_path = Environment.getExternalStorageDirectory();
  
      File mFolder = new File(sdcard_path, theFolder);
  
      if (!mFolder.exists()) {
  
          if (!mFolder.mkdirs()) {
  
              Log.e("While creatingsave path",
  
                      "Default Save Path Creation Error");
  
              // Toast("Default Save Path Creation Error");
  
          }
  
      }
  
      String mFullPath = mFolder.getPath() + '/' + theImageName;
  
  
  
      return mFullPath;
  
  }
  
  private static void copyRawFile(Context ctx, int resid, File file, String mode) throws IOException, InterruptedException
  
  {
  
      final String abspath = file.getAbsolutePath();
  
      // Write the iptables binary
  
      final FileOutputStream out = new FileOutputStream(file);
  
      final InputStream is = ctx.getResources().openRawResource(resid);
  
      byte buf[] = new byte[1024];
  
      int len;
  
      while ((len = is.read(buf)) > 0) {
  
          out.write(buf, 0, len);
  
      }
  
      out.close();
  
      is.close();
  
      // Change the permissions
  
      Runtime.getRuntime().exec("chmod "+mode+" "+abspath).waitFor();
  
  }       
  
  ShellCallback mCallbackResponse = new ShellUtils.ShellCallback() {
  
  
  
      @Override
  
      public void shellOut(String shellLine) {
  
          // TODO Auto-generated method stub
  
  
  
      }
  
  
  
      @Override
  
      public void processComplete(int exitValue) {
  
          // TODO Auto-generated method stub
  
          toast("process done");
  
  
  
      }
  
  };
  
  
  
  public File getTempDirectory(){
  
      String saveFolder = ("TestFFmpeg/temp");
  
      File appRootFile = setupCustomFile(saveFolder);
  
  
  
  
  
      return appRootFile;
  
   }
  
  
  
  public File setupCustomFile(String theFolder){
  
      File sdcard_path = Environment.getExternalStorageDirectory();
  
      File mFolder = new File(sdcard_path, theFolder);
  
      if (!mFolder.exists()) {
  
          if (!mFolder.mkdirs()) {
  
              Log.e("While creatingsave path",
  
                      "Default Save Path Creation Error");
  
              // Toast("Default Save Path Creation Error");
  
          }
  
      }
  
  
  
      return mFolder;
  
  }
  
  
  
  
  
  
  
  public static void toast(String thetext) {
  
      Toast.makeText(context, thetext, Toast.LENGTH_LONG).show();
  
  }
  
  </clip></clip>

  any help would be appreciated

• Nginx video streaming - ffmpeg convert to flv, but requsted is mp4

  18 juin 2012, par abrahab

  I am converting videos from different sources with ffmpeg to mp4 with libx264 codec.
  The following command (simplified) :
  ffmpeg -i 1.mp4 -y -f mp4 -vcodec libx264 -crf 28 -threads 2 -strict experimental -acodec aac -ab 56k -ar 44100 -ac 2 temp.mp4

  Then, I can not stream the output file (500 Internal Server Error) with nginx mp4-streaming solution (aka http pseudo streaming). My system administrator found, that if rename file to flv it stream well, so, seems the output file is not mp4, but flv ? Why ? How to correctly convert ? Or, please, suggest how to stream video properly ? I think that mp4 is much better then flv... therefore I choose mp4.

  In other words, the problem is to stream output file like mp4.

  ps i also need to be sure that this video will always work at ipad after convertation. thanks and sorry for my bad english.

  EDIT : I found that if convert video with the same string but without -vcodec libx264 - nginx can serve the output .mp4 file well. where may be the problem ?