[FFmpeg-trac] #7323(undetermined:new): aac decoder - file with errors in console (plays fine though) - Telekom 360° Apple HLS stream
FFmpeg
trac at avcodec.org
Fri Jul 20 21:33:48 EEST 2018
#7323: aac decoder - file with errors in console (plays fine though) - Telekom
360° Apple HLS stream
-------------------------------------+-------------------------------------
Reporter: Djfe | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
If you look at the German Telekom's HLS streams with ffmpeg, then you can
see:
The Main stream (2D) can be saved/played just fine.
If you look at one of the 2 360° streams, then ffmpeg's aac decoder
errors, because the encoder seems to have used some still unknown
features.
I'll leave it as defect though for now, since I can't be sure.
The audio plays fine in VLC and AIMP.
FFmpeg still shows errors when I try to copy again, after downloading and
saving. (I haven't tested reencoding, yet)
The URLs might change till Monday, but you can get the most up-to-date URL
at:
https://www.magenta-musik-360.de/parookaville-2018-4886
(Inspect the page with your browser and use the network tab to get the
m3u8 address)
ffmpeg -i "https://streaming-magenta-
music-360.akamaized.net/hls/live/573873/mm360_vr1/index.m3u8" -map 0:p:3
-c copy .\file.mp4
ffmpeg -i "https://streaming-magenta-
music-360.akamaized.net/hls/live/573874/mm360_vr2/index.m3u8" -map 0:p:3
-c copy file.mp4
I'll attach the files and the (verbose) console logs.
Hopefully, they will help you in getting ffmpeg to support these kind of
aac streams in the future :)
The errors I'm seeing:
aac container
{{{
[adts @ 0000026004067040] Application provided invalid, non monotonically
increasing dts to muxer in stream 0: 34080 >= 34080
}}}
ts container
{{{
[mpegts @ 000001da3ba5d280] AAC bitstream not in ADTS format and extradata
missing
}}}
mp4 container
{{{
[mp4 @ 000001df2d2cb600] aac bitstream error
}}}
in-case my attached aac streams are faulty (because ffmpeg doesn't support
them, yet), then you still have some time to save some yourself/test on
the live streams :)
Regards
Djfe
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7323>
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