[FFmpeg-devel] Ffmpeg/ffprobe not work well with a DASH stream
Steven Liu
lingjiujianke at gmail.com
Fri Nov 18 13:26:24 EET 2022
Chang, Xiangzhong <xiangzhong.chang at telia.no> 于2022年11月17日周四 22:00写道：
>
> 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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