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• RTMP Stream Save Video using FFMPEG

  9 août 2019, par Abhishek Sengupta

  I am having trouble saving a live stream to disk using FFMPEG.

  It is saving the file after running the command :

  ffmpeg -i rtmp://000.00.0.0/hls/test1705269295 -c copy -f mp4 /var/www/html/1_1564654090862.mp4

  But it is becoming corrupted, if we dont use CTRL+C to save it manually, while the stream is still live.

  Is there any way so that ffmpeg will automatically save the files properly when the live stream ends by the streamer ?

• 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 ?

• concat 2 mini audio files and make a loop and add a background music

  11 octobre 2020, par Johny Sharma

  I Need to concatenate 2 small audio files with loop and add background music in a single command.

  



  I am capable to concatenate two audio files with a background music. My above given code is working.

  



  ffmpeg -i 1.mp3 -i 2.mp3 -i background.mp3 
-filter_complex "[0:0][1:0]concat=n=2:v=0:a=1,volume=1dB,aformat=fltp, pan=stereo|c0=c0|c1=c0[a0]; 
[2]volume=0.5dB,aformat=fltp,pan=stereo|c0=c0|c1=c1[a1];[a0][a1]amix=inputs=2:duration=longest,aformat=fltp[a]"
-map "[a]" -strict -2 -y output.mp3


  



  but i want to a make a loop of the concatenated files till the end of the background music. background music is longer than approx 5 times from concatenated files.

  



  If someone can suggest a single command solution.

  



  I know about amovie tag but unfortunately its not possible to use in here because amovie requires file name which is not possible with concatenated files as per my knowledge.

  



  Can anyone help me how can i achieve my goal !

  



  Thanks