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  • HLS Content Throwing 403 Errors on iPhone Indeterminately [closed]

    10 août 2023, par Shishir Jakati

    I am facing an issue with video content that I have converted to HLS playlist content (using ffmpeg) added to an S3 bucket that is shared through a Cloudfront Distribution. My scenario is the following :

    


    I have a bucket called bucket-a, with a "folder" video-1 which contains the following files :

    


      

    • output.m3u8

      • 


    • output0.ts

      • 


    • ...

      • 


    • output15.ts

      • 


    • audio/

        

      • audio.aac

        • 


      


      • 


    • image.jpg

      • 


    


    All items in bucket-a are blocked from public access through S3. Content is only vended through a Cloudfront distribution which has origin bucket-a. I am able to access https://<distro>.cloudfront.net/path/output.m3u8</distro> on a desktop browser without fail, and no errors thrown. But the file output.m3u8 and all .ts files are not available on iPhone mobile browsers. The part that is peculiar is that this is not true for all playlist content in bucket-a. For example, I have a "folder" video-2 within bucket-a that has the same file structure as video-1 that is completely accessible through all mobile browsers.

    &#xA;

    Here is an example master playlist error : https://dbs3s11vyxuw0.cloudfront.net/bottle-promo/script_four/output.m3u8

    &#xA;

    Even more head-scratching is that I am able to access all the playlists that are within this playlist.

    &#xA;

    What I've tried :

    &#xA;

      &#xA;
    • Initially, I believed the issue to be due to the way the video was transcoding so I standardized the video transcoding.

      • &#xA;

    • Then I believed the issue to be due to CloudFront permissions, though those seem to be fine.

      • &#xA;

    • I've validated my stream here : https://ott.dolby.com/OnDelKits_dev/StreamValidator/Start_Here.html

      • &#xA;

    &#xA;

    Not sure which way to turn.

    &#xA;

  • convert lower bitrate mp3 to higher bit rate [closed]

    6 mars 2016, par janeman

    i had 2000 songs in 128 kbps but in my server space was not there so i have compressed those mp3 to 16kbps and found ok quality on my pc but when i was listening those songs on my iphone i found that sound quality is not good so now i wan t to convert those 16kbps songs to 48kbps which i think will give good sound quality so that users cant differentiate that songs are compressed and it will load fast as well .here is the ffmpeg code i have used to convert 16kbps file to 48kbps . i can see that the size of converted file has increased approx 3 fold but not sure whether it will give the better quality mp3 when i increase the bit rate through conversion .please suggest any way to get my file back with good mp3 quality

      &lt;?php  
    
 if ( exec('ffmpeg  -i /pathtomp3folder/test.mp3  -acodec libmp3lame  -ab 48k -ac 1 -ar 44100  /pathtomp3folder/oputput.mp3'))
    

    
   {
    
  echo 'done!!';
    
  }
    

    
  ?>

    i can do below code as well wthout specifying the frequency which is best way to do

       ffmpeg  -i /pathtomp3folder/test.mp3  -acodec libmp3lame  -ab 48k -ac 1   /pathtomp3folder/oputput.mp3
    

    
  {
    
  echo 'done!!';
    
   }

    i dont see much difference in 16kbps and converted file quality however size got increased 3 times in converted file

    what is the minimum kbps we should prefer so that users cant detect the difference and i get high streaming rate as well without buffering .i am targetting mobile device so please suggest about mobile device

    size of 16 kbps file was 745kb and size of 48kbps file is 1840kb

    where i am doing mistake any idea or if anyone can share his experinene it will be a great help .i have stuggled to get my collection of 2000 songs back as i dont have backup and in my pc the quality of mp3 seems to be ok but when i play in iphone it clearly shows that its of low quality

    in my server ffmpeg is installed and working properly so it is easily converting the bit rate .one more thing i want to know when the bit rate is getting changed from 16kbps to 48 kbps what is the changes in quality ???/ as i can clearly see that size is increasing but the quality remains same

  • ffmpeg command failed

    25 octobre 2015, par Asad kamran

    I am experimenting FFMPEG command to convert any video format to mp4.

    Server admin execute the below command created by me and show me the errors :

    ffmpeg -ss 00:03:00  -i  /video/1444107854.mov -c:v libx264 /video/player/1444107854.mp4  -vframes 1 /video/thumb/1444107854.jpg

    This is error :

    [aac @ 0x2b845a0] The encoder ’aac’ is experimental but experimental
    codecs are not enabled, add ’-strict -2’ if you want to use it.

    how can i avoid this error and also experimental codec, so can any one let me know what can be best codec if i explicitly specify it.

    my ffmpeg and server are as follow :

    ffmpeg version N-75903-g14573b9 Copyright (c) 2000-2015 the FFmpeg
    developers built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)

    EDIT 1 :
    I change the command a bit and add -c:a copy to copy audio stream as it is but still no hope :

    New command :

    ffmpeg -ss 00:03:00  -i  /video/1444107854.mov -c:v libx264 -c:a copy /video/player/1444107854.mp4  -vframes 1 /video/thumb/1444107854.jpg

    After executing this i got a file of 23k size, apparently as in log it only copy audio stream and no video is added in final output.
    Its Log is as follow :

    > ffmpeg version N-75903-g14573b9 Copyright (c) 2000-2015 the FFmpeg
    
> developers   built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)  
    
> configuration: --enable-libx264 --enable-gpl   libavutil      55. 
    
> 3.100 / 55.  3.100   libavcodec     57.  5.100 / 57.  5.100   libavformat    57.  3.100 / 57.  3.100   libavdevice    57.  0.100 /
    
> 57.  0.100   libavfilter     6. 10.100 /  6. 10.100   libswscale      4.  0.100 /  4.  0.100   libswresample   2.  0.100 /  2.  0.100   libpostproc    54.  0.100 / 54.  0.100 Input #0, mpeg, from
    
> '/video/1444108714.mpg':  
    
> Duration: 00:00:02.14, start: 0.184278, bitrate: 15689 kb/s
    
>     Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], max. 38810 kb/s, 29.97 fps, 29.97 tbr,
    
> 90k tbn, 59.94 tbc
    
>     Stream #0:1[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s [swscaler @ 0x347fda0] deprecated pixel format used, make sure you did
    
> set range correctly [libx264 @ 0x34708a0] using SAR=1/1 [libx264 @
    
> 0x34708a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 [libx264
    
> @ 0x34708a0] profile High, level 4.0 [libx264 @ 0x34708a0] 264 - core
    
> 148 r2597 e86f3a1 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 -
    
> http://www.videolan.org/x264.html - options: cabac=1 ref=3
    
> deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00
    
> mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0
    
> deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=34
    
> lookahead_threads=5 sliced_threads=0 nr=0 decimate=1 interlaced=0
    
> bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
    
> b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250
    
> keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf
    
> mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
    
> aq=1:1.00 [mp4 @ 0x346f6c0] Codec for stream 1 does not use global
    
> headers but container format requires global headers [mp4 @ 0x346f6c0]
    
> track 1: codec frame size is not set Output #0, mp4, to
    
> '/video/player/1444108714.mp4':  
    
> Metadata:
    
>     encoder         : Lavf57.3.100
    
>     Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn,
    
> 29.97 tbc
    
>     Metadata:
    
>       encoder         : Lavc57.5.100 libx264
    
>     Stream #0:1: Audio: ac3 ([165][0][0][0] / 0x00A5), 48000 Hz, 5.1(side), 448 kb/s Output #1, image2, to '/video/thumb/1444108714.jpg':  
    
> Metadata:
    
>     encoder         : Lavf57.3.100
    
>     Stream #1:0: Video: mjpeg, yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
    
>     Metadata:
    
>       encoder         : Lavc57.5.100 mjpeg Stream mapping:   Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (libx264))   Stream #0:1 -> #0:1 (copy)   Stream #0:0 -> #1:0 (mpeg2video (native) -> mjpeg (native)) Press [q] to stop, [?] for help [mp4 @ 0x346f6c0]
    
> Non-monotonous DTS in output stream 0:1; previous: 2208, current: 672;
    
> changing to 2209. This may result in incorrect timestamps in the
    
> output file. frame=    0 fps=0.0 q=0.0 Lq=0.0 size=      23kB
    
> time=00:00:00.07 bitrate=2447.5kbits/s video:0kB audio:23kB
    
> subtitle:0kB other streams:0kB global headers:0kB muxing overhead:
    
> 3.457839%

    EDIT 2 :

    ffmpeg -y -i ./1445675270.m4b -c:v libx264  -crf 20 -preset slow -pix_fmt yuv420p -movflags +faststart -c:a libfdk_aac -b:a 128k  ./player/1445675270.mp4 -vframes 1 ./thumb/1445675270.jpg

    Above command output the below message, i will appreciate if you can suggest.

    ffmpeg version git-2015-10-11-49f4967 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)
    
  configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
    
  libavutil      55.  3.100 / 55.  3.100
    
  libavcodec     57.  5.100 / 57.  5.100
    
  libavformat    57.  3.100 / 57.  3.100
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 11.100 /  6. 11.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.100 /  2.  0.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x31e07c0] stream 0, timescale not set
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './1445675270.m4b':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 0
    
    compatible_brands: M4A mp42isom
    
    creation_time   : 2005-08-01 07:26:16
    
    tool            : ?
    
    title           : MAKE_2005-08-01
    
    artist          : MAKE Magazine
    
    composer        : MAKE Magazine - Phillip Torrone
    
    album           : Interview with Janus Wireless
    
    grouping        : MAKE Magazine enhanced podcast
    
    genre           : Podcast
    
    date            : 2005
    
    comment         : Interview with Janus wireless and their 5 Wi-Fi card packet capturing Linux box. This is a special enhanced podcast (this file plays images and links in iTunes and on iPod color devices).
    
  Duration: 00:02:57.54, start: 0.000000, bitrate: 162 kb/s
    
    Chapter #0:0: start 0.000000, end 17.000000
    
    Metadata:
    
      title           : MAKE Magazine @ DEFCON with JANUS
    
    Chapter #0:1: start 17.000000, end 37.000000
    
    Metadata:
    
      title           : Janus
    
    Chapter #0:2: start 37.000000, end 83.000000
    
    Metadata:
    
      title           : Construction
    
    Chapter #0:3: start 83.000000, end 109.000000
    
    Metadata:
    
      title           : The MAKERs
    
    Chapter #0:4: start 109.000000, end 177.540000
    
    Metadata:
    
      title           : Display
    
    Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
    Stream #0:1(eng): Subtitle: mov_text (text / 0x74786574), 0 kb/s
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
    Stream #0:2(eng): Video: tiff (tiff / 0x66666974), rgb24, 167x166, 126 kb/s, SAR 206:275 DAR 17201:22825, 0.03 fps, 1 tbr, 22050 tbn, 22050 tbc (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : TIFF (Uncompressed)
    
    Stream #0:3(eng): Subtitle: mov_text (tx3g / 0x67337874), 160x160, 0 kb/s (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
    Stream #0:4: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 167x166 [SAR 1:1 DAR 167:166], 90k tbr, 90k tbn, 90k tbc
    
[swscaler @ 0x3242360] deprecated pixel format used, make sure you did set range correctly
    
[libx264 @ 0x3228c40] width not divisible by 2 (167x166)
    
Output #0, mp4, to './player/1445675270.mp4':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 0
    
    compatible_brands: M4A mp42isom
    
    comment         : Interview with Janus wireless and their 5 Wi-Fi card packet capturing Linux box. This is a special enhanced podcast (this file plays images and links in iTunes and on iPod color devices).
    
    tool            : ?
    
    title           : MAKE_2005-08-01
    
    artist          : MAKE Magazine
    
    composer        : MAKE Magazine - Phillip Torrone
    
    album           : Interview with Janus Wireless
    
    grouping        : MAKE Magazine enhanced podcast
    
    genre           : Podcast
    
    date            : 2005
    
    Chapter #0:0: start 0.000000, end 17.000000
    
    Metadata:
    
      title           : MAKE Magazine @ DEFCON with JANUS
    
    Chapter #0:1: start 17.000000, end 37.000000
    
    Metadata:
    
      title           : Janus
    
    Chapter #0:2: start 37.000000, end 83.000000
    
    Metadata:
    
      title           : Construction
    
    Chapter #0:3: start 83.000000, end 109.000000
    
    Metadata:
    
      title           : The MAKERs
    
    Chapter #0:4: start 109.000000, end 177.540000
    
    Metadata:
    
      title           : Display
    
    Stream #0:0(eng): Video: h264, none, q=2-31, 128 kb/s, SAR 206:275 DAR 0:0, 1 fps (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : Lavc57.5.100 libx264
    
    Stream #0:1(eng): Audio: aac, 0 channels, 128 kb/s (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : Lavc57.5.100 libfdk_aac
    
Output #1, image2, to './thumb/1445675270.jpg':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 0
    
    compatible_brands: M4A mp42isom
    
    comment         : Interview with Janus wireless and their 5 Wi-Fi card packet capturing Linux box. This is a special enhanced podcast (this file plays images and links in iTunes and on iPod color devices).
    
    tool            : ?
    
    title           : MAKE_2005-08-01
    
    artist          : MAKE Magazine
    
    composer        : MAKE Magazine - Phillip Torrone
    
    album           : Interview with Janus Wireless
    
    grouping        : MAKE Magazine enhanced podcast
    
    genre           : Podcast
    
    date            : 2005
    
    Chapter #1:0: start 0.000000, end 17.000000
    
    Metadata:
    
      title           : MAKE Magazine @ DEFCON with JANUS
    
    Chapter #1:1: start 17.000000, end 37.000000
    
    Metadata:
    
      title           : Janus
    
    Chapter #1:2: start 37.000000, end 83.000000
    
    Metadata:
    
      title           : Construction
    
    Chapter #1:3: start 83.000000, end 109.000000
    
    Metadata:
    
      title           : The MAKERs
    
    Chapter #1:4: start 109.000000, end 177.540000
    
    Metadata:
    
      title           : Display
    
    Stream #1:0(eng): Video: mjpeg, none, q=2-31, 128 kb/s, SAR 206:275 DAR 0:0, 1 fps (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : Lavc57.5.100 mjpeg
    
Stream mapping:
    
  Stream #0:2 -> #0:0 (tiff (native) -> h264 (libx264))
    
  Stream #0:0 -> #0:1 (aac (native) -> aac (libfdk_aac))
    
  Stream #0:2 -> #1:0 (tiff (native) -> mjpeg (native))
    
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

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