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• html5 video crashes in Chrome and Opera but works fine in Firefox

  31 octobre 2012, par SharkTheDark

  It's 5:30AM and I'm stuck with this video problem.

  I had it all working before, and now, it has problems...
  I try to change encoding, but it's still not good... Worst part is that it works when it's runned from local file, but won't from server ( I add file types in htaccess )...

  Here is the ffmpeg encoding :

  exec('ffmpeg -i "' .$tmpName. '" -bt 50k -b 250k -ab 56k -ac 2 -s 480x320 -vcodec libx264 -vpre hq -vpre ipod640 -acodec libfaac  "upload/' .$newName. '.mp4"');
  
  exec('ffmpeg -i "' .$tmpName. '" -bt 50k -b 250k -ab 56k -ac 2 -s 480x320 -vcodec libvpx -acodec libvorbis -f webm "upload/' .$newName. '.webm"');
  
  exec('ffmpeg -i "' .$tmpName. '" -bt 50k -b 250k -ab 56k -ac 2 -s 480x320 -vcodec libtheora -acodec libvorbis -aq 100 "upload/' .$newName. '.ogv"');
  
  exec('ffmpeg -i "' .$tmpName. '" -bt 50k -b 250k -ab 56k -ac 2 -s 480x320 -vcodec libtheora -acodec libvorbis -aq 100 "upload/' .$newName. '.ogg"');

  or :

  exec('ffmpeg -i "' .$tmpName. '" "upload/' .$newName. '.mp4"');
  
  exec('ffmpeg -i "' .$tmpName. '" -vcodec libvpx -acodec libvorbis -f webm  -aq 100 "upload/' .$newName. '.webm"');
  
  exec('ffmpeg -i "' .$tmpName. '" -vcodec libtheora -acodec libvorbis -aq 100 "upload/' .$newName. '.ogv"');
  
  exec('ffmpeg -i "' .$tmpName. '" -vcodec libtheora -acodec libvorbis -aq 100 "upload/' .$newName. '.ogg"');

  or :

  exec('ffmpeg -i "' .$tmpName. '" "upload/' .$newName. '.mp4"');
  
  exec('ffmpeg -i "' .$tmpName. '" "upload/' .$newName. '.webm"');
  
  exec('ffmpeg -i "' .$tmpName. '" "upload/' .$newName. '.ogv"');
  
  exec('ffmpeg -i "' .$tmpName. '" "upload/' .$newName. '.ogg"');

  Nothing create good enough file to play in Chrome...

  URL of file(s) :

  http://urthots.com/homepage/upload/9b8a0c1a5af65c92936e3c6806181ec3.ogv
  
  http://urthots.com/homepage/upload/9b8a0c1a5af65c92936e3c6806181ec3.ogg
  
  http://urthots.com/homepage/upload/9b8a0c1a5af65c92936e3c6806181ec3.webm
  
  http://urthots.com/homepage/upload/f41355af09218d660a5d78a4012a7177.mp4

  Video element :

  <video poster="http://urthots.com/homepage/upload/images/xxx.jpg">
  
  <source src="http://urthots.com/homepage/upload/xxx.mp4" type="video/mp4"></source>
  
  <source src="http://urthots.com/homepage/upload/xxx.webm" type="video/webm"></source>
  
  <source src="http://urthots.com/homepage/upload/xxx.ogv" type="video/ogg; codecs=theora,vorbis"></source>
  
  <source src="http://urthots.com/homepage/upload/xxx.ogg" type="video/ogg; codecs=theora,vorbis"></source>
  
  </video>

  What can cause this ?
  I tried everything, encoding changing, HTML element changing, htaccess changing, I tried with videos from other sites, and they are working okay...
  I have no idea what is problem...

  Can someone please help...

• Trying to transcode video with FFMpeg Layer on Lambda

  7 septembre 2020, par incovenant

  I am trying to convert .ogv files to .mp4 using an ffmpeg layer on AWS Lambda.

  



  ---

  



  I followed a tutorial from the people at Serverless Framework to convert .mp4's to GIF's and that worked out great. Using the same ffmpeg static build, ( ffmpeg-git-amd64-static.tar.xz ) I set out to convert .ogv files to .mp4 files.

  



  So far I have had success with uploading videos to an S3 Bucket, getting a Lambda to retrieve that video, do something to the video using the ffmpeg binary, and copy a new file to S3.

  



  ---

  



  The Problem :

  



  The videos that are created, will not play.

  



  data point 1 : the resultant files from the function are far too small.

  



  The input video file is 1.3MB and the output video is only 256.0KB

  



  data point 2 : moov atom not found.

  



  After copying the resultant video from S3 to my local machine, I try to play using ffplay and I receive this error :

  



  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fd613093400] moov atom not found
frank.mp4: Invalid data found when processing input


  



  As far as I have been able to tell, the moov atom is suppose to contain important metadata about .mp4 files.

  



  ---

  



  Implementation :

  



  I used the Serverless framework to set up the AWS infrastructure.

  



  Here are a few different ffmpeg commands I have tried :

  



  1st attempt :

  



    // convert to mp4!
    spawnSync(
      "/opt/ffmpeg/ffmpeg",
      [
        "-i",
        `/tmp/${record.s3.object.key}`,
        "-vcodec",
        "libx264",
        "-acodec",
        "aac",
        `/tmp/${record.s3.object.key}.mp4`
      ],
      { stdio: "inherit" }
    );


  



  2nd attempt :

  



   // convert to mp4!
    spawnSync(
      "/opt/ffmpeg/ffmpeg",
      [
        "-i",
        `/tmp/${record.s3.object.key}`,
        `/tmp/${record.s3.object.key}.mp4`
      ],
      { stdio: "inherit" }
    );


  



  3rd attempt :

  



  I found this approach in a Stack Overflow question and the poster said that it worked for him.

  



  // convert to mp4!
spawnSync(
  "/opt/ffmpeg/ffmpeg",
  [
    '-i',
    `/tmp/${record.s3.object.key}`,
    '-codec:v',
    'libx264',
    '-profile:v',
    'main',
    '-preset',
    'slow',
    '-b:v',
    '400k',
    '-maxrate',
    '400k',
    '-bufsize',
    '800k',
    '-threads',
    '0',
    '-b:a',
    '128k',
    `/tmp/${record.s3.object.key}.mp4`
  ],
  { stdio: "inherit" }
);


  



  Each one of these works swell on my local machine.

  



  If the ffmpeg binary that I am using was not a popular one, ( I have seen it on multiple sites dealing in connection with transcoding on Lambda ), my guess would be that it is an issue with the layer... Perhaps.

  



  Any insight would be greatly appreciated. Thank you.

  


• 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.