VLC downloads video from Nebula, but no sound
Posted: 06 Nov 2022 20:20
Hi,
Note: I am a registered, paying user of Nebula and am not pirating their content. I just like to download it for offline viewing, e. g. on planes.
So for some of their videos, I can use VLC to download the m3u8 playlist and combine the segments, but no sound will play. Here's an M3U8:
When I download it, I get these messages:
As you might have guessed, I'm running Linux. If this is a Linux-specific issue, I'll be glad to have this message moved to the appropriate forum.
Thank you.
Note: I am a registered, paying user of Nebula and am not pirating their content. I just like to download it for offline viewing, e. g. on planes.
So for some of their videos, I can use VLC to download the m3u8 playlist and combine the segments, but no sound will play. Here's an M3U8:
Code: Select all
#EXTM3U
# Created with Bento4 mp4-dash.py, VERSION=2.0.0-639
#
#EXT-X-VERSION:6
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-TARGETDURATION:6
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-MAP:URI="init.mp4"
#EXTINF:6.0,
seg-1.m4s
#EXTINF:6.0,
seg-2.m4s
#EXTINF:6.0,
seg-3.m4s
#EXTINF:6.0,
seg-4.m4s
#EXTINF:6.0,
seg-5.m4s
#EXTINF:6.0,
seg-6.m4s
#EXTINF:6.0,
seg-7.m4s
#EXTINF:6.0,
seg-8.m4s
#EXTINF:6.0,
seg-9.m4s
#EXTINF:6.0,
seg-10.m4s
#EXTINF:6.0,
seg-11.m4s
#EXTINF:6.0,
seg-12.m4s
#EXTINF:6.0,
seg-13.m4s
#EXTINF:6.0,
seg-14.m4s
#EXTINF:6.0,
seg-15.m4s
#EXTINF:6.0,
seg-16.m4s
#EXTINF:6.0,
seg-17.m4s
#EXTINF:6.0,
seg-18.m4s
#EXTINF:6.0,
seg-19.m4s
#EXTINF:6.0,
seg-20.m4s
#EXTINF:6.0,
seg-21.m4s
#EXTINF:6.0,
seg-22.m4s
#EXTINF:6.0,
seg-23.m4s
#EXTINF:6.0,
seg-24.m4s
#EXTINF:6.0,
seg-25.m4s
#EXTINF:6.0,
seg-26.m4s
#EXTINF:6.0,
seg-27.m4s
#EXTINF:6.0,
seg-28.m4s
#EXTINF:6.0,
seg-29.m4s
#EXTINF:6.0,
seg-30.m4s
#EXTINF:6.0,
seg-31.m4s
#EXTINF:6.0,
seg-32.m4s
#EXTINF:6.0,
seg-33.m4s
#EXTINF:6.0,
seg-34.m4s
#EXTINF:6.0,
seg-35.m4s
#EXTINF:6.0,
seg-36.m4s
#EXTINF:6.0,
seg-37.m4s
#EXTINF:6.0,
seg-38.m4s
#EXTINF:6.0,
seg-39.m4s
#EXTINF:6.0,
seg-40.m4s
#EXTINF:6.0,
seg-41.m4s
#EXTINF:6.0,
seg-42.m4s
#EXTINF:6.0,
seg-43.m4s
#EXTINF:6.0,
seg-44.m4s
#EXTINF:6.0,
[20 lines removed]
seg-53.m4s
#EXTINF:6.0,
seg-54.m4s
#EXTINF:0.5666666666666667,
seg-55.m4s
#EXT-X-ENDLISTVLC (and mpv, and mplayer) can't play the resulting file, and all report that there is no audio track. Firefox can play that very stream without difficulty.file error: cannot create /home/carlf/2Tb/Nebula/output.mp4: File exists
adaptive info: Changing stream format Unknown -> MP4
mp4 info: Fragment sequence discontinuity detected 1 != 0
mp4 info: Fragment sequence discontinuity detected 3 != 2
mp4 info: Fragment sequence discontinuity detected 5 != 4
x264 info: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x264 info: profile Constrained Baseline, level 3.1, 4:2:0, 8-bit
x264 info: final ratefactor: 27.18
avcodec info: Using OpenGL/VAAPI backend for VDPAU for hardware decoding
avcodec error: existing hardware acceleration cannot be reused
x264 info: using SAR=1/1
x264 info: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x264 info: profile Constrained Baseline, level 3.1, 4:2:0, 8-bit
mp4 info: Fragment sequence discontinuity detected 7 != 6
mp4 info: Fragment sequence discontinuity detected 9 != 8
mp4 info: Fragment sequence discontinuity detected 11 != 10
mp4 info: Fragment sequence discontinuity detected 13 != 12
mp4 info: Fragment sequence discontinuity detected 15 != 14
mp4 info: Fragment sequence discontinuity detected 17 != 16
mp4 info: Fragment sequence discontinuity detected 19 != 18
mp4 info: Fragment sequence discontinuity detected 21 != 20
mp4 info: Fragment sequence discontinuity detected 23 != 22
mp4 info: Fragment sequence discontinuity detected 25 != 24
mp4 info: Fragment sequence discontinuity detected 27 != 26
mp4 info: Fragment sequence discontinuity detected 29 != 28
mp4 info: Fragment sequence discontinuity detected 31 != 30
mp4 info: Fragment sequence discontinuity detected 33 != 32
mp4 info: Fragment sequence discontinuity detected 35 != 34
mp4 info: Fragment sequence discontinuity detected 37 != 36
mp4 info: Fragment sequence discontinuity detected 39 != 38
mp4 info: Fragment sequence discontinuity detected 41 != 40
mp4 info: Fragment sequence discontinuity detected 43 != 42
mp4 info: Fragment sequence discontinuity detected 45 != 44
mp4 info: Fragment sequence discontinuity detected 47 != 46
mp4 info: Fragment sequence discontinuity detected 49 != 48
mp4 info: Fragment sequence discontinuity detected 51 != 50
mp4 info: Fragment sequence discontinuity detected 53 != 52
mp4 info: Fragment sequence discontinuity detected 55 != 54
mp4 info: Fragment sequence discontinuity detected 57 != 56
mp4 info: Fragment sequence discontinuity detected 59 != 58
mp4 info: Fragment sequence discontinuity detected 61 != 60
mp4 info: Fragment sequence discontinuity detected 63 != 62
mp4 info: Fragment sequence discontinuity detected 65 != 64
mp4 info: Fragment sequence discontinuity detected 67 != 66
mp4 info: Fragment sequence discontinuity detected 69 != 68
mp4 info: Fragment sequence discontinuity detected 71 != 70
mp4 info: Fragment sequence discontinuity detected 73 != 72
mp4 info: Fragment sequence discontinuity detected 75 != 74
mp4 info: Fragment sequence discontinuity detected 77 != 76
mp4 info: Fragment sequence discontinuity detected 79 != 78
mp4 info: Fragment sequence discontinuity detected 81 != 80
mp4 info: Fragment sequence discontinuity detected 83 != 82
mp4 info: Fragment sequence discontinuity detected 85 != 84
mp4 info: Fragment sequence discontinuity detected 87 != 86
mp4 info: Fragment sequence discontinuity detected 89 != 88
mp4 info: Fragment sequence discontinuity detected 91 != 90
[10 lines removed]
x264 info: frame I:39 Avg QP:26.67 size: 47736
x264 info: frame P:9696 Avg QP:29.57 size: 6014
x264 info: mb I I16..4: 100.0% 0.0% 0.0%
x264 info: mb P I16..4: 6.3% 0.0% 1.7% P16..4: 18.6% 4.1% 0.5% 0.0% 0.0% skip:68.8%
x264 info: final ratefactor: 30.76
x264 info: coded y,uvDC,uvAC intra: 21.4% 16.1% 7.0% inter: 6.6% 3.5% 0.5%
x264 info: i16 v,h,dc,p: 37% 32% 15% 16%
x264 info: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 27% 22% 6% 5% 5% 5% 4% 4%
x264 info: i8c dc,h,v,p: 72% 13% 11% 4%
x264 info: kb/s:1483.41
As you might have guessed, I'm running Linux. If this is a Linux-specific issue, I'll be glad to have this message moved to the appropriate forum.
Thank you.