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7th March 2018, 20:00 | #14601 | Link |
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I tried to change an audio file from 29.970 to 25.000 using the following command
eac3to source29970.mp2 output25000.mp2 -29.970 -changeTo25.000 but the output file is identical to the source, nothing changed...am I doing it wrong? Thnx |
7th March 2018, 20:02 | #14602 | Link |
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Join Date: Mar 2010
Location: Hamburg/Germany
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Audio doesn't really have a frame rate as such, its a video property. What exactly do you want to happen?
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LAV Filters - open source ffmpeg based media splitter and decoders |
7th March 2018, 21:16 | #14605 | Link | |
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Quote:
Often 29.97 to 25 would be IVTC'ed to 23.976 and then speed-up from there, so durations may differ slightly, but you would have to do that speedup step, and not a 29.97 -> 25 slowdown.
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23rd March 2018, 15:45 | #14606 | Link |
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Sometimes when dealing with AC3 tracks, I get the message "Reducing depth from 64 to 24 bits". The source audio in these cases is always reported by MediaInfo to be 16-bit. Is it practical to use "-down16" in these cases, or is it reducing (or increasing, rather?) the depth to 24 bit for a specific reason?
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23rd March 2018, 15:59 | #14607 | Link |
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Join Date: Dec 2002
Posts: 5,565
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You can ignore the MediaInfo information. AC3 tracks do not have any inherent bitdepth (TrueHD is different). The AC3 decoder decodes it at 64 bit. Then eac3to automatically dithers that down to 24 bit because humans cannot hear a difference anyways and 64 bit files would be huge (or the target format doesn't support 64 bit in the first place). You can reduce the bitdepth further to 16 bit if you want and will probably not hear any difference. But this only makes sense if you are compressing to a format that does have a set bitdepth (e.g. FLAC, wav), not if you target AC3, AAC, MP3, ...
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25th March 2018, 08:13 | #14610 | Link |
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Location: Belgium
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This should work (add s after wav) to get 24 bit ;
eac3to input.ac3 output.wavs Or add -down16 if you need 16 bit ; eac3to input.ac3 output.wavs -down16 Last edited by Music Fan; 25th March 2018 at 08:17. |
25th March 2018, 19:12 | #14612 | Link |
German doom9/Gleitz SuMo
Join Date: Oct 2001
Location: Germany, rural Altmark
Posts: 6,784
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And why do you believe that we do not want to know the exact error message? Or even better, a whole console output log, if the GUI doesn't hide that from the user.
Last edited by LigH; 25th March 2018 at 19:14. |
26th March 2018, 00:10 | #14614 | Link | |
Moderator
Join Date: Feb 2005
Location: Spain
Posts: 6,915
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Quote:
ffmpeg can decode it to 5.1: ffmpeg -i input.eac3 decoded.w64 and after to individual 6 wavs (maybe ffmpeg can do this directly): eac3to decoded.w64 output.wavs
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BeHappy, AviSynth audio transcoder. |
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26th March 2018, 00:43 | #14615 | Link |
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Join Date: Mar 2018
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only subtitle demux
Hello everyone!
I'm using eac3to quite often, but by now i couldnt figure out how to ONLY demux subtitles.... maybe you guys can help me with that...? Demuxing the whole files only for the subtitles takes soo much time and I would love to reduce this ... Thanks a lot in advance for your help!!! |
26th March 2018, 07:32 | #14616 | Link |
German doom9/Gleitz SuMo
Join Date: Oct 2001
Location: Germany, rural Altmark
Posts: 6,784
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Well, the main purpose of eac3to is processing audio streams. To demultiplex subtitles only, you may find tools better specialized in this task. It would help to know your source format (DVD Video, Blu-ray?) to suggest accordingly.
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26th March 2018, 07:58 | #14617 | Link | |
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Join Date: Jan 2012
Posts: 271
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Quote:
Maybe if you report such streams, there is higher chance of it being supported in FFmpeg. |
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26th March 2018, 09:37 | #14618 | Link |
PgcEdit daemon
Join Date: Jul 2003
Posts: 7,469
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You can demux the subtitles exactly like any other stream.
Example: demux English subtitles from a BD playlist. First, issue this command to inspect the content of the playlist (assuming angle 1): Code:
path\to\eac3to.exe V:\BDMV\PLAYLIST\00200.mpls 1) Code:
M2TS, 2 video tracks, 6 audio tracks, 4 subtitle tracks, 0:07:13, 24p /1.001 1: Chapters, 3 chapters 2: h264/AVC (left eye), 1080p24 /1.001 (16:9) 3: h264/MVC (right eye), 1080p24 /1.001 (16:9) 4: DTS Master Audio, English, 7.1 channels, 24 bits, 48kHz (core: DTS, 5.1 channels, 1509kbps, 48kHz) 5: DTS Hi-Res, English, 5.1 channels, 2046kbps, 48kHz (core: DTS, 5.1 channels, 1509kbps, 48kHz) 6: AC3 Surround, English, 2.0 channels, 320kbps, 48kHz, -24ms 7: AC3 Surround, English, 2.0 channels, 320kbps, 48kHz, -24ms 8: AC3, French, 5.1 channels, 640kbps, 48kHz, -24ms 9: AC3, Spanish, 5.1 channels, 640kbps, 48kHz, -24ms 10: Subtitle (PGS), English 11: Subtitle (PGS), English 12: Subtitle (PGS), French 13: Subtitle (PGS), Spanish Code:
path\to\eac3to.exe V:\BDMV\PLAYLIST\00200.mpls 1) 10: english1.sup 11: english2.sup
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r0lZ PgcEdit homepage (hosted by VideoHelp) BD3D2MK3D A tool to convert 3D blu-rays to SBS, T&B or FS MKV Last edited by r0lZ; 27th March 2018 at 10:32. Reason: Added "1)" to specify angle 1 in the eac3to command examples |
26th March 2018, 09:38 | #14619 | Link |
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And as the subtitles are muxed into the corresponding files (m2ts, VOB, mkv etc.), eac3to needs to process the whole stream anyway so extracting only the subs is not much faster than extracting audio and subs.
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26th March 2018, 13:35 | #14620 | Link | |
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Join Date: Mar 2018
Posts: 2
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Quote:
"00125 - 7 - Subtitle (PGS), English, 1080 captions" or "1080 captions, 3 Forced captions" So the automatic naming of eac3to for files would be nice now At least I can get the subtitles now, thanks a lot for your help!!!! |
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eac3to |
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