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Sur d’autres sites (12095)

  • ffmpeg video download shows errors in log

    15 juin 2022, par PeterM

    i'm trying to download media (video) files from sharepoint (i have view access), but during the process i get several "Connection to tcp ://xxx.xxxxx.ms:443 failed : Error number -138 occurred" or "HTTP error 503 Service Unavailable" errors (see following screenshots : tcp error HTTP error 503 )

    


    i get more errors with the following parameters :

    


    ffmpeg -i "https://theURLtoTheManifestYouCopiedHere" -codec copy downloadedVideo.mp4


    


    less errors with :

    


    ffmpeg -re -vsync 1 -i "https://theURLtoTheManifestYouCopiedHere" -codec copy downloadedVideo.mp4


    


    the options suggested in this article didn't help : https://medium.com/intrasonics/robust-continuous-audio-recording-c1948895bb49

    


    the output video is ok, but sound seems to be missing occasionally (a few seconds worth)

    


    ffmpeg version used is 2022-06-12-git-4d45f5acbd-essentials_build-www.gyan.dev (executable for windows)

    


    any advice ?

    


  • Use SDL2 play yuv file but actually no display [closed]

    14 juin 2024, par guan xi

    I use ffmpeg to demux and decode the media file, and then use SDL2 to play the raw data, everything is ok. no error no warning, but SDL2 windows does not dispaly video content.
All i know is frame dts is ordered in SDL2 play queue and data is good.

    


    void VideoPlay::play_video() {
  while (is_running_) {
    refresh_loop_wait_event(&event_);

    switch (event_.type) {
      case SDL_KEYDOWN:
        if (event_.key.keysym.sym == SDLK_q) {
          LOG_INFO("Q quit");
          is_running_ = false;
          frame_queue_->abort();
        }
        break;
      case SDL_QUIT:
        LOG_INFO("SDL_QUIT");
        is_running_ = false;
        frame_queue_->abort();
        break;

      default:
        break;
    }
  }
}

void VideoPlay::refresh_loop_wait_event(SDL_Event *event) {
  SDL_PumpEvents();

  while (
      !SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT)) {
    video_refresh();
    SDL_PumpEvents();
  }
}

void VideoPlay::video_refresh() {
  int ret = 0;
  frame_queue_->pop(frame_);
  if (!frame_) {
    LOG_ERROR("frame_queue_ pop failed.");
    is_running_ = false;
    frame_queue_->abort();
    return;
  }

  rect_.x = 0;
  rect_.y = 0;
  rect_.w = video_width_;
  rect_.h = video_height_;

  ret = SDL_UpdateYUVTexture(
      texture_, &rect_, frame_->data[0], frame_->linesize[0], frame_->data[1],
      frame_->linesize[1], frame_->data[2], frame_->linesize[2]);

  LOG_DEBUG("frame pts: %ld, tot size: %d, Y size: %d, U size: %d, V size: %d",
            frame_->pts, video_width_ * video_height_, frame_->linesize[0],
            frame_->linesize[1], frame_->linesize[2]);
  if (ret != 0) {
    LOG_ERROR("SDL_UpdateYUVTexture failed. %s", SDL_GetError());
    is_running_ = false;
    frame_queue_->abort();
    return;
  }
  ret = SDL_RenderClear(renderer_);
  if (ret != 0) {
    LOG_ERROR("SDL_RenderClear failed. %s", SDL_GetError());
    is_running_ = false;
    frame_queue_->abort();
    return;
  }
  ret = SDL_RenderCopy(renderer_, texture_, nullptr, &rect_);
  if (ret != 0) {
    LOG_ERROR("SDL_RenderCopy failed. %s", SDL_GetError());
    is_running_ = false;
    frame_queue_->abort();
    return;
  }
  SDL_RenderPresent(renderer_);
  SDL_Delay(10);
  av_frame_free(&frame_);
  frame_ = nullptr;
}


    


    log file out put

    


    ~/A_CODES/ffmpeg_official/cmake-build-debug ᐅ cat sdlplay.log
[info]  [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/core/sp_demux.cpp:50  init] audio idx 1 video idx 0
[info]  [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/core/sp_decode.cpp:39  init] codec: h264
[info]  [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/core/sp_decode.cpp:68  init] yuv fmt: yuv420p
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x1100
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x1100
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x300
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x300
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x301
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:100  play_video] event 0x200
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 67, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 133, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 200, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 267, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 333, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 400, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 467, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 533, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 600, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 667, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 733, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 800, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 867, tot size: 82944, Y size: 384, U size: 192, V size: 192
[debug] [2024-06-14 15:39:33] [/home/xiguan/A_CODES/ffmpeg_official/SDLPlayer/sdl/video_play.cpp:151  video_refresh] frame pts: 933, tot size: 82944, Y size: 384, U size: 192, V size: 192


    


    I try to handle SDL2 events correctly as ffplay but no use.
I also gdb to search anything error but nothing happen too.

    


  • Yet another ffmpeg concat audio sync issue [closed]

    15 mars 2024, par Demiurg

    I've read through dozens of posts, tried many suggestions, nothing seems to work for me. The funny part is that the video is fine in some players (e.g. Quicktime) but not the others (e.g. Chrome).

    


    This is what I currently use :

    


    ffmpeg -i segment.mp4 -q 0 -c copy segment.ts
ffmpeg -f concat -i videos.txt -c copy -y final.mp4


    


    This is what ffmpeg shows for the originals

    


    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '52M35S_1710280355.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isom
    creation_time   : 2024-03-12T21:53:35.000000Z
  Duration: 00:00:59.86, start: 0.000000, bitrate: 851 kb/s
  Stream #0:0[0x1](und): Audio: opus (Opus / 0x7375704F), 48000 Hz, mono, fltp, 10 kb/s (default)
    Metadata:
      creation_time   : 2024-03-12T21:53:35.000000Z
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](und): Video: hevc (Main) (hvc1 / 0x31637668), yuvj420p(pc, bt709), 1920x1080, 836 kb/s, 10.02 fps, 10 tbr, 90k tbn (default)
    Metadata:
      creation_time   : 2024-03-12T21:53:35.000000Z
      vendor_id       : [0][0][0][0]


    


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