Recherche avancée

Sur d’autres sites (8292)

• avcodec/packet : add an LCEVC enhancement data payload side data type

  29 août 2024, par James Almer

  avcodec/packet : add an LCEVC enhancement data payload side data type
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] doc/APIchanges
  • [DH] libavcodec/decode.c
  • [DH] libavcodec/packet.c
  • [DH] libavcodec/packet.h
  • [DH] libavcodec/version.h

• Stream data chunk with ffmpeg

  22 mai 2020, par Amit Levy

  I have a react native app, and i'm using 'react-native-sound-recorder' to capture audio data chunks.

  



  AudioRecord.on('data', (data) => {
  // use data here
});


  



  I'm able to save the file to file system, but I would like to stream the 'data' variable (the audio data chunk) using ffmpeg to server, but can't find the proper ffmpeg command (all i found was commands to stream from specific input or file).

  


• How to save a vvideo from a RTSP server using Ffmpeg in C++ ?

  20 septembre 2021, par Tolga

  I am using Ffmpeg remuxing example code to save a mp4 file into another file. However my actual goal is saving the video from a RTSP server. The example works fine with the normal .mp4 files but when I try to save the video from RTSP Server I get following error on command prompt.

  


  [mp4 @ 02F9A8C0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 18000 >= 3000


  


  The RTSP server is created on my computer for testing using python gstream. I used the script here.

  


  Ffmpeg code in C++ is below where error occurs.

  


          iCamera->stream = iCamera->fmt->streams[iCamera->pkt->stream_index];
        iCamera->pkt->stream_index = map->stream_map[iCamera->pkt->stream_index];
        oCamera->stream = oCamera->fmt->streams[iCamera->pkt->stream_index];

        iCamera->pkt->pts = av_rescale_q_rnd(iCamera->pkt->pts, iCamera->stream->time_base, oCamera->stream->time_base, AVRounding(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
        iCamera->pkt->dts = av_rescale_q_rnd(iCamera->pkt->dts, iCamera->stream->time_base, oCamera->stream->time_base, AVRounding(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
        iCamera->pkt->duration = av_rescale_q(iCamera->pkt->duration, iCamera->stream->time_base, oCamera->stream->time_base);
        iCamera->pkt->pos = -1;
        
        if (av_interleaved_write_frame(oCamera->fmt, iCamera->pkt)) {
            printf("Error occured while muxing packet.\n"); exit(1);
        }