[FFmpeg-devel] Ffmpeg/ffprobe not work well with a DASH stream

Chang, Xiangzhong xiangzhong.chang at telia.no
Fri Nov 18 14:45:10 EET 2022 

Thank you, Steve, I¡¯ve synced my code base to your commit#. I tried to configure the code as much like yours as possible. But mine is a Linux box on HP laptop. For me, the result remains the same ¨C ffprobe_g was unable to detect the stream type.


chang at 640g2:~/git-root/FFmpeg$ ./ffprobe_g --version

ffprobe version N-109033-g86157f5a25 Copyright (c) 2007-2022 the FFmpeg developers

  built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)

  configuration: --disable-optimizations --disable-shared --disable-stripping --enable-debug --enable-debug=3 --enable-demuxer=dash --enable-ffplay --enable-filter=delogo --enable-fontconfig --enable-gpl --enable-htmlpages --enable-libaom --enable-libfdk-aac --enable-libfreetype --enable-libopus --enable-libspeex --enable-libv4l2 --enable-libv4l2 --enable-libx264 --enable-libx265 --enable-libx265 --enable-libxml2 --enable-libzmq --enable-nonfree --enable-openssl --enable-pthreads --enable-pthreads --enable-shared --enable-vaapi --enable-vaapi --enable-vdpau --enable-xlib --enable-zlib

  libavutil      57. 42.100 / 57. 42.100

  libavcodec     59. 52.100 / 59. 52.100

  libavformat    59. 34.101 / 59. 34.101

  libavdevice    59.  8.101 / 59.  8.101

  libavfilter     8. 50.100 /  8. 50.100

  libswscale      6.  8.112 /  6.  8.112

  libswresample   4.  9.100 /  4.  9.100

  libpostproc    56.  7.100 / 56.  7.100



You have to specify one input file.

Use -h to get full help or, even better, run 'man ffprobe'.

[1]+  Terminated              ./ffprobe_g -loglevel trace http://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/manifest.mpd?abs_begin=2022-11-16T08:00:00Z

chang at 640g2:~/git-root/FFmpeg$ ./ffprobe_g -loglevel trace http://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/manifest.mpd?abs_begin=2022-11-16T08:00:00Z&is_live&no_dolby

¡­

[http @ 0x55a993990f00] HTTP error 404 Not Found

[dash @ 0x55a9939677c0] Failed to open fragment of playlist







The following indicates ffprobe_g is linking to the correct runtime library



chang at 640g2:~/git-root/FFmpeg$ ldd ./ffprobe_g

    linux-vdso.so.1 (0x00007ffc75b94000)

    libavdevice.so.59 => ./libavdevice/libavdevice.so.59 (0x00007fa234b60000)

    libavfilter.so.8 => ./libavfilter/libavfilter.so.8 (0x00007fa234528000)

    libavformat.so.59 => ./libavformat/libavformat.so.59 (0x00007fa2341e5000)

    libavcodec.so.59 => ./libavcodec/libavcodec.so.59 (0x00007fa232a88000)

    libpostproc.so.56 => ./libpostproc/libpostproc.so.56 (0x00007fa232a67000)

    libswresample.so.4 => ./libswresample/libswresample.so.4 (0x00007fa232a3f000)

    libswscale.so.6 => ./libswscale/libswscale.so.6 (0x00007fa232894000)

    libavutil.so.57 => ./libavutil/libavutil.so.57 (0x00007fa23267f000)






From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> on behalf of Steven Liu <lingjiujianke at gmail.com>
Date: Friday, 18 November 2022 at 12:27
To: FFmpeg development discussions and patches <ffmpeg-devel at ffmpeg.org>
Subject: Re: [FFmpeg-devel] Ffmpeg/ffprobe not work well with a DASH stream
Chang, Xiangzhong <xiangzhong.chang at telia.no> ÓÚ2022Äê11ÔÂ17ÈÕÖÜËÄ 22:00дµÀ£º
>
> Hi,
>
> Thank you so much for this amazing project. I¡¯ve found this project has been extremely useful for me.
> I¡¯ve found out that ffmpeg/ffplay does not work well with one of our DASH streams. In comparison, I¡¯ve tried the following players
>
>   1.  ExoPlayer
>   2.  DASH-JS player<https://reference.dashif.org/dash.js/v4.5.1/samples/dash-if-reference-player/index.html>
>   3.  Bitmovin JS player<https://bitmovin.com/demos/stream-test?format=dash&manifest=https%3A%2F%2Fdirector.livecdn.teliaplay.net%2Fnotvm%2Fmso%2FTV_1HD%2Fdash%2Fmanifest.mpd>
>
> I was using the following script trying to probe/transcoding one of our DASH stream.
> ```
> ffprobe_g  -loglevel debug "https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/manifest.mpd?abs_begin=2022-11-16T08:00:00Z&is_live&no_dolby"

(base) liuqi05:ffmpeg liuqi$
~/multimedia/upstream_ffmpeg/ufbuild/ffprobe
"https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/manifest.mpd?abs_begin=2022-11-16T08:00:00Z&is_live&no_dolby"
ffprobe(70115,0x113793600) malloc: nano zone abandoned due to
inability to preallocate reserved vm space.
ffprobe version N-109033-g86157f5a25 Copyright (c) 2007-2022 the
FFmpeg developers
  built with Apple clang version 13.1.6 (clang-1316.0.21.2.5)
  configuration: --prefix=/usr/local/ --libdir=/usr/local/lib/
--cc=clang --enable-htmlpages --enable-libx264 --enable-gpl
--extra-ldflags='-I/usr/local/opt/openssl/include/ -O0 -g3
-fsanitize=address -Wno-error -fPIC -I/usr/local/include'
--extra-ldflags='-O0 -g3 -fsanitize=address -Wno-error -fPIC
-L/usr/local/lib -L/usr/local/opt/openssl/lib' --enable-libfreetype
--enable-fontconfig --enable-libspeex --enable-libopus --enable-libzmq
--enable-libx265 --enable-libass --enable-videotoolbox
--disable-optimizations --enable-audiotoolbox --enable-opengl
--disable-stripping --samples=../../fate-suite/
--enable-encoder=hevc_videotoolbox --enable-hwaccel=hevc_videotoolbox
--enable-hwaccel=h264_videotoolbox --enable-openssl --enable-nonfree
--disable-shared --enable-libfdk_aac --enable-libxml2
--enable-libmp3lame --enable-libaom
  libavutil      57. 42.100 / 57. 42.100
  libavcodec     59. 52.100 / 59. 52.100
  libavformat    59. 34.101 / 59. 34.101
  libavdevice    59.  8.101 / 59.  8.101
  libavfilter     8. 50.100 /  8. 50.100
  libswscale      6.  8.112 /  6.  8.112
  libswresample   4.  9.100 /  4.  9.100
  libpostproc    56.  7.100 / 56.  7.100
[dash @ 0x617000000080] DTS discontinuity in stream 0: packet 99 with
DTS 150189356926262, packet 100 with DTS 150189360168062
Input #0, dash, from
'https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/manifest.mpd?abs_begin=2022-11-16T08:00:00Z&is_live&no_dolby':
  Duration: N/A, start: 1668770630.554022, bitrate: N/A
  Program 0
  Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv,
bt709), 1280x720 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn (default)
    Metadata:
      variant_bitrate : 5000000
      id              : video-stream-1
  Stream #0:1: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv,
bt709), 1280x720 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn (default)
    Metadata:
      variant_bitrate : 3000000
      id              : video-stream-2
  Stream #0:2: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
bt709), 1024x576 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn (default)
    Metadata:
      variant_bitrate : 1750000
      id              : video-stream-3
  Stream #0:3: Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
bt709), 640x360 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn (default)
    Metadata:
      variant_bitrate : 1000000
      id              : video-stream-4
  Stream #0:4: Video: h264 (Constrained Baseline) (avc1 / 0x31637661),
yuv420p(tv, bt709), 448x252 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k
tbn (default)
    Metadata:
      variant_bitrate : 300000
      id              : video-stream-5
  Stream #0:5(nor): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
stereo, fltp (default)
    Metadata:
      variant_bitrate : 192000
      id              : audio-stream-1
(base) liuqi05:ffmpeg liuqi$


> ```
>
> The following log have drawn my attention. It seems like ffprobe has failed to download some file chunks.
> ```
> [dash @ 0x55b477e86880] DASH request for url 'https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/video-stream-1-150182387590546.mp4', offset 0
> [tcp @ 0x55b477f09080] Starting connection attempt to 84.208.9.142 port 443
> [tcp @ 0x55b477f09080] Successfully connected to 84.208.9.142 port 443
> [tcp @ 0x55b477ed0f00] Starting connection attempt to 84.208.9.21 port 443
> [tcp @ 0x55b477ed0f00] Successfully connected to 84.208.9.21 port 443
> [https @ 0x55b477eee1c0] HTTP error 404 Not Found
> ```
>
> However, when I was using wget to download it, all works out
> ```
> hhk9417 at HC994R6KQD:~/Desktop$ wget https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/video-stream-1-150182387590546.mp4
> --2022-11-17 14:53:30--  https://director.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/video-stream-1-150182387590546.mp4
> Resolving director.livecdn.teliaplay.net (director.livecdn.teliaplay.net)... 84.208.9.75, 84.208.9.76, 84.208.9.141, ...
> Connecting to director.livecdn.teliaplay.net (director.livecdn.teliaplay.net)|84.208.9.75|:443... connected.
> HTTP request sent, awaiting response... 302 Found
> Location: https://m323-cdne01.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/video-stream-1-150182387590546.mp4 [following]
> --2022-11-17 14:53:30--  https://m323-cdne01.livecdn.teliaplay.net/notvm/mso/TV_1HD/dash/video-stream-1-150182387590546.mp4
> Resolving m323-cdne01.livecdn.teliaplay.net (m323-cdne01.livecdn.teliaplay.net)... 84.208.9.21
> Connecting to m323-cdne01.livecdn.teliaplay.net (m323-cdne01.livecdn.teliaplay.net)|84.208.9.21|:443... connected.
> HTTP request sent, awaiting response... 200 OK
> Length: 1293307 (1,2M) [video/mp4]
> Saving to: ¡®video-stream-1-150182387590546.mp4¡¯
>
> video-stream-1-150182387590546.mp4              100%[=====================================================================================================>]   1,23M  --.-KB/s    in 0,02s
>
> 2022-11-17 14:53:30 (50,8 MB/s) - ¡®video-stream-1-150182387590546.mp4¡¯ saved [1293307/1293307]
> ```
>
> Regarding the FFmpeg SDK, I¡¯m using the latest master branch, I¡¯ve compiled it from scratch. The following are my compilation configs
> ```
> --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libx264 --enable-libx265 --enable-filter=delogo --enable-debug --disable-optimizations --enable-libspeex --enable-shared --enable-pthreads --enable-vaapi --enable-ffplay --disable-stripping --enable-debug=3 --enable-libopus --enable-libv4l2 --enable-zlib --enable-vaapi --enable-pthreads --enable-vdpau --enable-xlib --enable-libv4l2 --enable-libfreetype --enable-demuxer=dash --enable-libxml2 --enable-libaom --enable-libx265 --enable-openssl"
> #define FFMPEG_LICENSE "nonfree and unredistributable
> ```
>
> Cheers.
>
>
>
>
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