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• M3u8 with either video or audio

  21 February 2023, by undercash

  I m facing an issue with this link that I can't seem to resolve.

  


  The m3u8 display either the video track or the audio track, but never both, though they exist.

  


  ffmpeg -re -i https://origin2-6play.live.6cloud.fr/pool_u81ytesz/w9/sixplayhde/hls_short_enc_w9/NA/aHEUMcx/index.m3u8
ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9 (Ubuntu 9.3.0-17ubuntu1\~20.04)
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfdk_aac --enable-libtheora --enable-libvorbis --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libvpx --enable-librtmp --enable-libass --enable-libfreetype --extra-libs=-ldl --enable-openssl
libavutil      56. 51.100 / 56. 51.100
libavcodec     58. 91.100 / 58. 91.100
libavformat    58. 45.100 / 58. 45.100
libavdevice    58. 10.100 / 58. 10.100
libavfilter     7. 85.100 /  7. 85.100
libswscale      5.  7.100 /  5.  7.100
libswresample   3.  7.100 /  3.  7.100
libpostproc    55.  7.100 / 55.  7.100
\[hls @ 0x562ecf699b40\] Skip ('#EXT-X-VERSION:7')
\[hls @ 0x562ecf699b40\] Skip ('## Just In Time Delivered by Quortex Solution')
\[hls @ 0x562ecf699b40\] Skip ('#EXT-X-DISCONTINUITY-SEQUENCE:0')
\[hls @ 0x562ecf699b40\] Skip ('#EXT-X-PROGRAM-DATE-TIME:2023-02-21T10:14:12.480000Z')
\[hls @ 0x562ecf699b40\] Opening 'https://url/segment_6246422.ts' for reading
Input #0, hls, from 'https://url/index.m3u8':
Duration: N/A, start: 92548.466311, bitrate: N/A
Program 0
Metadata:
variant_bitrate : 0
Stream #0:0: Audio: aac (LC) (\[15\]\[0\]\[0\]\[0\] / 0x000F), 48000 Hz, stereo, fltp
Metadata:
variant_bitrate : 0

ffmpeg -i url.m3u8
ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9 (Ubuntu 9.3.0-17ubuntu1\~20.04)
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfdk_aac --enable-libtheora --enable-libvorbis --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libvpx --enable-librtmp --enable-libass --enable-libfreetype --extra-libs=-ldl --enable-openssl
libavutil      56. 51.100 / 56. 51.100
libavcodec     58. 91.100 / 58. 91.100
libavformat    58. 45.100 / 58. 45.100
libavdevice    58. 10.100 / 58. 10.100
libavfilter     7. 85.100 /  7. 85.100
libswscale      5.  7.100 /  5.  7.100
libswresample   3.  7.100 /  3.  7.100
libpostproc    55.  7.100 / 55.  7.100
\[hls @ 0x55806439cc00\] Skip ('#EXT-X-VERSION:7')
\[hls @ 0x55806439cc00\] Skip ('## Just In Time Delivered by Quortex Solution')
\[hls @ 0x55806439cc00\] Skip ('#EXT-X-DISCONTINUITY-SEQUENCE:0')
\[hls @ 0x55806439cc00\] Skip ('#EXT-X-PROGRAM-DATE-TIME:2023-02-21T10:14:00.960000Z')
\[hls @ 0x55806439cc00\] Opening 'url/segment_6246419.ts' for reading
\[hls @ 0x55806439cc00\] Opening 'url.ts' for reading
Input #0, hls, from 'url/index.m3u8':
Duration: N/A, start: 92536.988978, bitrate: N/A
Program 0
Metadata:
variant_bitrate : 0
Stream #0:0: Video: h264 (High) (\[27\]\[0\]\[0\]\[0\] / 0x001B), yuv420p, 1280x720 \[SAR 1:1 DAR 16:9\], 25 fps, 25 tbr, 90k tbn, 50 tbc
Metadata:
variant_bitrate : 0\


  


  I put the same command on 2 different shells and on one I get the audio track, or the video one on the other..

  


  Question: Since I have seen a site properly using this link (I had audio and video on the player) how can I use ffmpeg (or any other program ) to grab both input and output them in a single file?

  


  I tried to use -analyzeduration 1000M -probesize 1000M in ffmpeg parameters but it doesn't help

  


• FFmpeg does not encode chapter titles [closed]

  15 October 2023, by Shironats

  I am trying to add chapters to a .mp4 file.
When I tried extracting the metadata using the following command:

  


  ffmpeg -i INPUT.mp4 -f ffmetadata FFMETADATAFILE.txt

  


  I got an output file as follows:

  


  ;FFMETADATA1
major_brand=mp42
minor_version=0
compatible_brands=isommp42
encoder=Lavf60.15.100


  


  So now I try to add some chapters as such

  


  [CHAPTER]
TIMEBASE=1/1000
START=0
END=424510
title=mytitle1

[CHAPTER]
TIMEBASE=1/1000
START=424511
END=941600
title=mytitle2

[CHAPTER]
TIMEBASE=1/1000
START=941601
END=1227260
title=mytitle3


  


  I use the ffmpeg -i INPUT.mp4 -i FFMETADATAFILE.txt -map_metadata 1 -codec copy OUTPUT.mp4 command to encode the metadata to my video file, and for some reason I only ever get 'Chapter 0', 'Chapter 1', and 'Chapter 2'.

  


  I tried using the -map_chapters 1 argument as well but results have been unchanged.

  


  I am using the Latest Auto-Build (2023-10-14 13:02) Windows build by BtbN. Thanks in advance for the help.

  


• Subtitles come too early in ts file [closed]

  6 October 2023, by kallelo

  I have recorded a movie with my SAT-recorder on harddisk. The movie is in french and has subtitles in several languages. I cutted the ts-file and removed all subtitles except german wit tsdoctor. Sometimes later I noticed that the subtitles come about four seconds too early. Unfortunately I had deleted the original file until then.

  


  ffprobe shows the following output:

  


  ffprobe version 6.0-essentials_build-www.gyan.dev Copyright (c) 2007-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
...
Input #0, mpegts, from 'inputfile.ts':
  Duration: 01:35:06.88, start: 54851.766678, bitrate: 3407 kb/s
  Program 6915
  Stream #0:0[0x267]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn
    Side data:
      cpb: bitrate max/min/avg: 15000000/0/0 buffer size: 1835008 vbv_delay: N/A
  Stream #0:1[0x27b](fra): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 192 kb/s
  Stream #0:2[0x3a9](deu): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)


  


  I can imagine that this problem could be solved with ffmpeg, but don't know how and I didn't found anything that would help me.