Recherche avancée

Sur d’autres sites (10748)

• pthread_frame : merge the functionality for normal decoder init and init_thread_copy

  9 janvier 2017, par Anton Khirnov

  pthread_frame : merge the functionality for normal decoder init and init_thread_copy
  The current design, where
  
   proper init is called for the first per-thread context
  
   first thread's private data is copied into private data for all the
  
    other threads
  
   a "fixup" function is called for all the other threads to e.g.
  
    allocate dynamically allocated data
  
  is very fragile and hard to follow, so it is abandoned. Instead, the
  
  same init function is used to init each per-thread context. Where
  
  necessary, AVCodecInternal.is_copy can be used to differentiate between
  
  the first thread and the other ones (e.g. for decoding the extradata
  
  just once).
  

  • [DH] doc/multithreading.txt
  • [DH] libavcodec/aic.c
  • [DH] libavcodec/alac.c
  • [DH] libavcodec/avcodec.h
  • [DH] libavcodec/cfhd.c
  • [DH] libavcodec/cllc.c
  • [DH] libavcodec/dnxhddec.c
  • [DH] libavcodec/exr.c
  • [DH] libavcodec/ffv1dec.c
  • [DH] libavcodec/flacdec.c
  • [DH] libavcodec/h264dec.c
  • [DH] libavcodec/hevcdec.c
  • [DH] libavcodec/hqx.c
  • [DH] libavcodec/huffyuvdec.c
  • [DH] libavcodec/lagarith.c
  • [DH] libavcodec/lcldec.c
  • [DH] libavcodec/magicyuv.c
  • [DH] libavcodec/mdec.c
  • [DH] libavcodec/mimic.c
  • [DH] libavcodec/mpeg4videodec.c
  • [DH] libavcodec/pixlet.c
  • [DH] libavcodec/pngdec.c
  • [DH] libavcodec/proresdec2.c
  • [DH] libavcodec/pthread_frame.c
  • [DH] libavcodec/rv30.c
  • [DH] libavcodec/rv34.c
  • [DH] libavcodec/rv34.h
  • [DH] libavcodec/rv40.c
  • [DH] libavcodec/sheervideo.c
  • [DH] libavcodec/takdec.c
  • [DH] libavcodec/tiff.c
  • [DH] libavcodec/tta.c
  • [DH] libavcodec/vble.c
  • [DH] libavcodec/vp3.c
  • [DH] libavcodec/vp8.c
  • [DH] libavcodec/vp9.c
  • [DH] libavcodec/wavpack.c
  • [DH] libavcodec/ylc.c

• Replace av_dlog with normal av_log at trace level

  16 mars 2015, par Vittorio Giovara

  Replace av_dlog with normal av_log at trace level
  This applies to every library where performance is not critical.
  

  • [DBH] avplay.c
  • [DBH] libavdevice/dv1394.c
  • [DBH] libavdevice/fbdev.c
  • [DBH] libavfilter/avfilter.c
  • [DBH] libavfilter/internal.h
  • [DBH] libavfilter/setpts.c
  • [DBH] libavfilter/vf_crop.c
  • [DBH] libavfilter/vf_drawtext.c
  • [DBH] libavfilter/vf_fieldorder.c
  • [DBH] libavfilter/vsrc_movie.c
  • [DBH] libavformat/asfdec.c
  • [DBH] libavformat/assdec.c
  • [DBH] libavformat/avidec.c
  • [DBH] libavformat/flvdec.c
  • [DBH] libavformat/hevc.c
  • [DBH] libavformat/http.c
  • [DBH] libavformat/ipmovie.c
  • [DBH] libavformat/isom.c
  • [DBH] libavformat/mmsh.c
  • [DBH] libavformat/mmst.c
  • [DBH] libavformat/mov.c
  • [DBH] libavformat/mov_chan.c
  • [DBH] libavformat/mpeg.c
  • [DBH] libavformat/mpegenc.c
  • [DBH] libavformat/mpegts.c
  • [DBH] libavformat/mpegtsenc.c
  • [DBH] libavformat/mux.c
  • [DBH] libavformat/mxfdec.c
  • [DBH] libavformat/mxfenc.c
  • [DBH] libavformat/nsvdec.c
  • [DBH] libavformat/oggdec.c
  • [DBH] libavformat/r3d.c
  • [DBH] libavformat/rmdec.c
  • [DBH] libavformat/rtmpproto.c
  • [DBH] libavformat/rtpdec.c
  • [DBH] libavformat/rtpdec_hevc.c
  • [DBH] libavformat/rtpenc.c
  • [DBH] libavformat/rtsp.c
  • [DBH] libavformat/rtspdec.c
  • [DBH] libavformat/utils.c
  • [DBH] libavresample/audio_convert.c
  • [DBH] libavresample/audio_mix.c
  • [DBH] libavresample/resample.c
  • [DBH] libavresample/utils.c

• FFMPEG Green Screen from raw pictures

  21 août 2016, par Mohammad Abu Musa

  I am writing a screen recorder, I get raw data from Chrome and I want to covert it to webm files. I manged successfully to export the videos with the correct periods but the issue that I get a green screen instead of the screen capture. I am not sure what could be wrong.

  Is it writing to file ? or passing the parameters to fwrite function ?

  void EncoderInstance::OnGetFrame(int32_t result, pp::VideoFrame frame) {
  
      if (result != PP_OK)
  
          return;
  
  
  
      const uint8_t* data = static_cast<const>(frame.GetDataBuffer());
  
      pp::Size size;
  
      frame.GetSize(&amp;size);
  
      uint32_t buffersize = frame.GetDataBufferSize();
  
  
  
  
  
      if (is_recording_) {
  
          vpx_codec_iter_t iter = NULL;
  
          const vpx_codec_cx_pkt_t *pkt;
  
          // copy the pixels into our "raw input" container.
  
          int bytes_filled = avpicture_fill(&amp;pic_raw, data, AV_PIX_FMT_YUV420P, out_width, out_height);
  
          if(!bytes_filled) {
  
              Logger::Log("Cannot fill the raw input buffer");
  
              return;
  
          }
  
  
  
          if(vpx_codec_encode(&amp;codec, &amp;raw, frame_cnt, 1, flags, VPX_DL_REALTIME))
  
                die_codec(&amp;codec, "Failed to encode frame");
  
  
  
          while( (pkt = vpx_codec_get_cx_data(&amp;codec, &amp;iter)) ) {
  
              switch(pkt->kind) {
  
                  case VPX_CODEC_CX_FRAME_PKT:
  
                      glb_app_thread.message_loop().PostWork(callback_factory_.NewCallback(&amp;EncoderInstance::write_ivf_frame_header, pkt));
  
                      glb_app_thread.message_loop().PostWork(callback_factory_.NewCallback(&amp;EncoderInstance::WriteFile, pkt));
  
                      break;
  
                  default:break;
  
              }
  
          }
  
  
  
          frame_cnt++;
  
      }
  
  
  
      video_track_.RecycleFrame(frame);
  
      if (need_config_) {
  
          ConfigureTrack();
  
          need_config_ = false;
  
      } else {
  
          video_track_.GetFrame(
  
                  callback_factory_.NewCallbackWithOutput(
  
                          &amp;EncoderInstance::OnGetFrame));
  
      }
  
  }
  
  </const>