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• ffmpeg rtsp over http not working

  17 novembre 2017, par kooli

  I put this conf on ffserver

  HTTPPort 1234
  
  RTSPPort 1235
  
  <stream>
  
  Format rtp
  
  
  
  Feed feed1.ffm
  
  VideoCodec libx264
  
  VideoFrameRate 24
  
  VideoBitRate 100
  
  VideoSize 480x272
  
  AVOptionVideo flags +global_header
  
  </stream>

  I stream with this command

  ffmpeg -i file.h264 http://127.0.0.1:1234/feed1.ffm

  When I watch this stream I can watch via udp and tcp on this url :

  rtsp://127.0.0.1:1235/live.h264

  but i want to stream with rtsp over http(http tunneling).

  How can I do it please ??

• avformat : AviSynth demuxer rewrite

  27 novembre 2013, par d s

  avformat : AviSynth demuxer rewrite
  Directly loads AviSynth through LoadLibrary instead of relying on
  
  Video for Windows, and supports using AvxSynth (via dlopen) to
  
  open scripts on Linux and OS X.
  Error messages from AviSynth/AvxSynth are now reported through
  
  av_log and exit, rather than the traditional behavior of generating
  
  an error video that the user would need to watch to diagnose.
  The main rewrite was authored by d s <avxsynth.testing@gmail.com>
  
  from the AvxSynth team, with additional contributions by
  Oka Motofumi <chikuzen.mo@gmail.com>
  
  Stephen Hutchinson <qyot27@gmail.com>
  
  Diego Biurrun <diego@biurrun.de>
  
  Anton Khirnov <anton@khirnov.net>
  Signed-off-by : Anton Khirnov <anton@khirnov.net>
  

  • [DH] configure
  • [DH] libavformat/avisynth.c

• Saving frames from a network camera (RTSP) to a mp4 file

  24 novembre 2015, par Dídac Pérez

  I am quite confused about how to save a video stream into a mp4 file. I am using ffmpeg. Let me explain the problem :

  1. I connect to a network camera via RTSP (H.264 stream) with avformat_open_input(), avformat_find_stream_info(), av_read_play(), and I get frames with av_read_frame().
  2. Each time I get a frame with av_read_frame(), I store the corresponding AVPacket in a circular buffer.
  3. In some points in my application, a range of this circular buffer is selected. I find a key frame used to start from.
  4. Once I have a list of AVPacket’s starting from a key frame, I write header, frames, and tail, as I described below in the code.

  The problem is that the resulting mp4 video has artifacts if I try to watch it using VLC, Windows Media Player, or another one.

  I have also realized that the pts of that packets are not continuous, while dts are continuous. I know about B frames, but is this a problem in my case ?

  // Prepare the output
  
  AVFormatContext* oc = avformat_alloc_context();
  
  oc->oformat = av_guess_format(NULL, "video.mp4", NULL);
  
  
  
  // Must write header, packets, and trailing
  
  avio_open2(&oc->pb, "video.mp4", AVIO_FLAG_WRITE, NULL, NULL);
  
  
  
  // Write header
  
  AVStream* stream = avformat_new_stream(oc, (AVCodec*) context->streams[video_stream_index]->codec->codec);
  
  avcodec_copy_context(stream->codec, context->streams[video_stream_index]->codec);
  
  stream->sample_aspect_ratio = context->streams[video_stream_index]->codec->sample_aspect_ratio;
  
  avformat_write_header(oc, NULL);
  
  
  
  // FOR EACH FRAME...
  
  ... av_write_frame(oc, circular[k]); ...
  
  
  
  // Write trailer and close the file
  
  av_write_trailer(oc);
  
  avcodec_close(stream->codec);
  
  avio_close(oc->pb);
  
  avformat_free_context(oc);

  Thank you so much,