Recherche avancée

Sur d’autres sites (8830)

• What is the right way to clean memory in ffmpeg ?

  27 mars 2018, par hagor

  Hi i have a class with these fields :

  bool m_initializedAndRegistered = false;
  
      std::atomic <bool> m_recievingFrames = false;
  
      int m_init_frames = 10000;
  
      int m_capacity = 10;
  
      std::thread readingThread;
  
      std::string m_streamAdress;
  
      SwsContext *m_img_convert_ctx_ptr = NULL;
  
      AVFormatContext *m_format_ctx_ptr = NULL;
  
      AVFormatContext *m_output_ctx_ptr = NULL;
  
      AVCodecContext *m_codec_ctx_ptr= NULL;// = NULL;
  
      AVPacket m_packet;
  
      AVStream *m_stream_ptr = NULL;
  
      AVCodec *m_codec_ptr = NULL;
  
      AVFrame *m_picture_ptr = NULL;
  
      AVFrame *m_picture_rgb_ptr = NULL;
  
      int m_video_stream_index = -1;
  
      uint8_t *m_picture_buffer_ptr = NULL;
  
      uint8_t *m_picture_buffer_2_ptr = NULL;
  
      circ_buffer m_imageBuffer;
  
  </bool>

  is it a correct way to clean all memory or do I forget to clean something ?
  It seems that I have 0.2 MB memory leak when I do this :

  m_recievingFrames = false;
  
  readingThread.join();
  
  readingThread.~thread();
  
  
  
  while (m_imageBuffer.size() > 0)
  
  {
  
      m_imageBuffer.receive().release();
  
  }
  
  av_packet_unref(&m_packet);
  
  
  
  av_frame_free(&m_picture_ptr);
  
  
  
  av_frame_free(&m_picture_rgb_ptr);
  
  
  
  av_read_pause(m_format_ctx_ptr);
  
  avio_close(m_output_ctx_ptr->pb);
  
  avio_close(m_format_ctx_ptr->pb);
  
  
  
  avformat_close_input(&m_format_ctx_ptr);
  
  avformat_close_input(&m_output_ctx_ptr);
  
  avformat_free_context(m_output_ctx_ptr);
  
  avformat_free_context(m_format_ctx_ptr);
  
  
  
  m_video_stream_index = -1;
  
  av_free(m_picture_buffer_ptr);
  
  av_free(m_picture_buffer_2_ptr);
  
  
  
  avcodec_free_context(&m_codec_ctx_ptr);
  
  
  
  av_free(m_stream_ptr);
  
  sws_freeContext(m_img_convert_ctx_ptr);

  I used malloc in m_picture_buffer_ptr allocation, but I cant free() it, because I get a heap exception. Do I need manually clean all Info for streams as it is suggested here ?

  My work is based on this old ffmpeg streamer.
  I don’t do av_register_all() and avformat_network_init() on every streamer restart.
  What is a good way (tool) to find memory leaks ?

• Manually Adding h265 codec support to FFMPEG v1.0.10

  11 mars 2018, par Joe90210

  I have looked everywhere and I can’t seem to find a solution. I am using Debian 7 wheezy, I have managed to get as far as having the following version installed.

  ffmpeg version 1.0.10 Copyright (c) 2000-2014 the FFmpeg developers
  
  
  
  built on Jul 25 2014 07:50:40 with gcc 4.7 (Debian 4.7.2-5)

  But as you will see below there is no H265 support which is making for a real headache trying to convert iOS MOV files to MP4. Has anybody had any luck with this ordeal ? I’ve looked through stackoverflow for 3 hours and see nothing even close here.

   ffmpeg -codecs | grep h26
  
   DEV.L. h261                 H.261
  
   DEV.L. h263                 H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 
  
   version 2
  
   D.V.L. h263i                Intel H.263
  
   DEV.L. h263p                H.263+ / H.263-1998 / H.263 version 2
  
   DEV.LS h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (decoders: h264 h264_crystalhd h264_vdpau ) (encoders: libx264 libx264rgb )

  Using a different software version at this time is not an option, I am aware of how lacking the packages can be with Debian.

  Thank you

• Recursively convert files in nested folders

  25 avril 2017, par E.Owen

  I wanted to just comment on an answer to a question very similar to this but I don’t have enough rep. I’m looking for a way to change this line of code :

  for i in *.mkv; do ffmpeg -i "$i" "${i%.*}.mp4"; done

  So that it includes .avi files and so that it can search through nested folders. I want to be able to target /Videos and have the script automatically traverse through the folder tree into /Videos/2016/January, convert all of the video files contained within that folder, then do the same for /Videos/2016/February and so on.

  Thanks in advance.

  (credit for above line of code goes to LordNeckBeard, from this post.)