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• Converting video to GIF in Android Studio

  21 novembre 2019, par Wolfiebae

  I am trying to make my app to accept videos from the phone’s library to be uploaded and converted into GIF format. My code is giving out this build error though :-

  error: <anonymous> is not abstract and does not override abstract method onReschedule(String,ErrorInfo) in UploadCallback
  
  </anonymous>

  and also this warning on my onActivityResult method :-

  Overriding method should call super.onActivityResult

  The code is as below : -

  public class Video2gif extends AppCompatActivity {
  
  
  
      private Button uploadBtn;
  
      private ProgressBar progressBar;
  
      private int SELECT_VIDEO = 2;
  
      private ImageView img1;
  
      private DownloadManager downloadManager;
  
      private Button download_btn;
  
      private String gifUrl;
  
  
  
      @Override
  
      protected void onCreate(Bundle savedInstanceState) {
  
          super.onCreate(savedInstanceState);
  
          setContentView(R.layout.activity_video2gif);
  
          MediaManager.init(this);
  
  
  
          progressBar = findViewById(R.id.progress_bar);
  
          MediaManager.init(this);
  
          img1 = findViewById(R.id.img1);
  
          uploadBtn = findViewById(R.id.uploadBtn);
  
  
  
          uploadBtn.setOnClickListener(new View.OnClickListener() {
  
              @Override
  
              public void onClick(View view) {
  
                  pickVideoFromGallery();
  
  
  
              }
  
              private void pickVideoFromGallery() {
  
                  Intent GalleryIntent = new Intent();
  
                  GalleryIntent.setType("video/*");
  
                  GalleryIntent.setAction(Intent.ACTION_GET_CONTENT);
  
                  startActivityForResult(Intent.createChooser(GalleryIntent,
  
                          "select video"), SELECT_VIDEO);
  
              }
  
          });
  
      }
  
      @Override
  
      protected void onActivityResult(int requestCode, int resultCode, final Intent data) {
  
  
  
          if (requestCode == SELECT_VIDEO && resultCode == RESULT_OK) {
  
              Uri selectedVideo = data.getData();
  
              MediaManager.get()
  
                      .upload(selectedVideo)
  
                      .unsigned("myid")
  
                      .option("resource_type", "video")
  
                      .callback(new UploadCallback(){
  
                          @Override
  
                          public void onStart(String requestId) {
  
                              progressBar.setVisibility(View.VISIBLE);
  
                              Toast.makeText(Video2gif.this,
  
                                      "Upload Started...", Toast.LENGTH_SHORT).show();
  
                          }
  
  
  
                          public void onProgress() {
  
                          }
  
  
  
                          public void onSuccess(String requestId, Map resultData) {
  
  
  
                              Toast.makeText(Video2gif.this, "Uploaded Succesfully",
  
                                      Toast.LENGTH_SHORT).show();
  
                              progressBar.setVisibility(View.GONE);
  
                              uploadBtn.setVisibility(View.INVISIBLE);
  
  
  
                              String publicId = resultData.get("public_id").toString();
  
  
  
                              gifUrl = MediaManager.get().url().resourceType("video")
  
                                      .transformation(new Transformation().videoSampling("25")
  
                                              .delay("200").height(200).effect("loop:10").crop("scale"))
  
                                      .resourceType("video").generate(publicId+".gif");
  
  
  
                              Glide.with(getApplicationContext()).asGif().load(gifUrl).into(img1);
  
                              download_btn.setVisibility(View.VISIBLE);
  
  
  
                          }
  
                          public void onError(String requestId, ErrorInfo error) {
  
                              Toast.makeText(Video2gif.this,
  
                                      "Upload Error", Toast.LENGTH_SHORT).show();
  
                              Log.v("ERROR!!", error.getDescription());
  
                          }
  
  
  
  
  
          });
  
      }
  
  }
  
  
  
  }

  I am also using Cloudinary to help process the video to GIF. Any help would be appreciated, many thanks !

• Windows libs for ffmpeg don't link (visual studio) ?

  21 octobre 2013, par Chad Mourning

  So, I'm trying to get a project I'm writing to link against ffmpeg libraries but I keep getting linker errors :

  1>GLViewLASReader.obj : error LNK2001: unresolved external symbol "struct AVCodec * __cdecl avcodec_find_encoder(enum AVCodecID)" (?avcodec_find_encoder@@YAPEAUAVCodec@@W4AVCodecID@@@Z)
  
  1>GLViewLASReader.obj : error LNK2001: unresolved external symbol "int __cdecl av_dict_set(struct AVDictionary * *,char const *,char const *,int)" (?av_dict_set@@YAHPEAPEAUAVDictionary@@PEBD1H@Z)
  
  1>GLViewLASReader.obj : error LNK2001: unresolved external symbol "int __cdecl avcodec_encode_video(struct AVCodecContext *,unsigned char *,int,struct AVFrame const *)" (?avcodec_encode_video@@YAHPEAUAVCodecContext@@PEAEHPEBUAVFrame@@@Z)
  
  1>GLViewLASReader.obj : error LNK2001: unresolved external symbol "struct AVCodecContext * __cdecl avcodec_alloc_context3(struct AVCodec const *)" (?avcodec_alloc_context3@@YAPEAUAVCodecContext@@PEBUAVCodec@@@Z)
  
  1>GLViewLASReader.obj : error LNK2001: unresolved external symbol "struct AVFrame * __cdecl avcodec_alloc_frame(void)" (?avcodec_alloc_frame@@YAPEAUAVFrame@@XZ)
  
  1>GLViewLASReader.obj : error LNK2001: unresolved external symbol "void __cdecl av_free(void *)" (?av_free@@YAXPEAX@Z)
  
  1>GLViewLASReader.obj : error LNK2001: unresolved external symbol "int __cdecl avcodec_open2(struct AVCodecContext *,struct AVCodec const *,struct AVDictionary * *)" (?avcodec_open2@@YAHPEAUAVCodecContext@@PEBUAVCodec@@PEAPEAUAVDictionary@@@Z)
  
  1>GLViewLASReader.obj : error LNK2001: unresolved external symbol "int __cdecl avcodec_close(struct AVCodecContext *)" (?avcodec_close@@YAHPEAUAVCodecContext@@@Z)
  
  1>C:\STEAMiE\usr\modules\LASReader\win32\Release\LASReader.exe : fatal error LNK1120: 8 unresolved externals

  I downloaded the dev package from :

  http://ffmpeg.zeranoe.com/builds/

  But when I link against the libs like I normally would, I get the linker errors. Is this package somehow different from every other library I've tried to use that I just need the .h/.libs for ? Is there a reason why it has to be that way ?

• Work on a copy of the headers in _initXHRData

  29 août 2013, par rslinckx

  Work on a copy of the headers in _initXHRData
  If someone passes a "headers" options to fileupload(), this object get overwritten across multiple files upload because the same object is being re-used.