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14th August 2022, 05:29 | #161 | Link |
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feature request
Hi,
1. Would you consider adding support for qaac codec? 2. Is there an option to change video frame rate (e.g. from 25 to 24) without encoding? I couldn't find one. 3. A drag-and-drop option for file specification would be very helpful. Thanks Last edited by chronis; 14th August 2022 at 05:43. |
19th August 2022, 10:42 | #162 | Link | |
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qaac codec is not included in ffmpeg, and because clever FFmpeg GUI is built on top of ffmpeg only, the use of qaac is not provided.
Quote:
What exactly do you mean by file specification? |
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26th August 2022, 12:13 | #163 | Link |
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August 26, 2022 update to version 3.0.2.
Fixed: Exception handling, webm as container selection (multiplex). Added: Chapters support (creating, editing, use extern chapters file), Source file check for warnings or errors, writing app info in outputs, select/deselect all streams in multiplexing, selection to move headers from mp4 and mov to the beginning for better streaming. Changed: Scan type handling, LUT filter chain, Nero chapters entrys deleted for mp4+mov. Improved: Hardcode subtitles handling, interlaced encoding from interlaced source, Video cutting. |
20th September 2022, 20:38 | #164 | Link |
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September 20, 2022 update to version 3.0.3.
Fixed: Video filter chain issue, extended range for IVTC detection issue. Added: hdmv_pgs_sultitle mux to ts. Changed: Missing scantype handling (progressive is assumed, but can be changed). Improved: Chapters handling, Video cut, defective video handling, errors scan. |
5th November 2022, 05:04 | #166 | Link | |
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Quote:
I had a little job to do with this today, I wanted to convert a 7.1 TrueHD track to AAC 7.1, which this did, took a while, but that's ok. However, the channel mapping changed considerably from original. If you would like to know how it changed, please go here :- https://forum.doom9.org/showthread.p...75#post1977775 Cheers |
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5th November 2022, 14:29 | #167 | Link |
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I use MediaInfo channel names.
Here show 3 options for AAC Defined Layouts 7.1: AAC_7_1: C L R Ls Rs Lw Rw LFE AAC_7_1_B: C L R Ls Rs Lb Rb LFE AAC_7_1_C: C L R Ls Rs Tfl Tfr LFE The default one is the first and some aac encoders (Nero, ffmpeg, fhgaacenc) output always that channel layout using this WAV to AAC channel equivalence: FL/FR -> Lw/Rw FC/LFE = C/LFE BL/BR -> Ls/Lr SL/BR -> L/R Using ffmpeg like decoder recover the correct layout sending a message: [aac @ 00000215e4c73d80] Assuming an incorrectly encoded 7.1 channel layout instead of a spec-compliant 7.1(wide) layout, use -strict 1 to decode according to the specification instead. If you want the standard 7.1 must use qaac or fdkaac than output the correct AAC_7_1_B: C L R Ls Rs Lb Rb LFE
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BeHappy, AviSynth audio transcoder. Last edited by tebasuna51; 5th November 2022 at 14:47. |
6th November 2022, 16:47 | #168 | Link | |
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Quote:
I checked this and just now encoded a TrueHD 7.1 audio stream to AAC 7.1 using clever FFmpeg-GUI. Mediainfo shows the differences in channel layout you showed, but when I compare the files in Audacity, the channels are arranged exactly the same. Maybe a problem of Mediainfo? Compare yourself (see attached picture). On the left the original TrueHD 7.1 file, on the right the converted AAC 7.1 file. Last edited by ProWo; 7th November 2022 at 15:40. |
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6th November 2022, 21:31 | #169 | Link | |
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Quote:
"Assuming an incorrectly encoded 7.1 channel layout instead of a spec-compliant 7.1(wide)" But MediaInfo now is correct, ffmpeg encode the standard 7.1 to a non-standard 7.1 channel layout. Use qaac or fdkaac if you want the correct channel layout 7.1, without problems with 5.1.
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BeHappy, AviSynth audio transcoder. Last edited by tebasuna51; 6th November 2022 at 21:58. |
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7th November 2022, 06:39 | #170 | Link | |
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Quote:
Fortunately for me, tho, I don't use 7.1 anyway, it was just a test, as a question was asked on another forum. |
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7th November 2022, 10:21 | #171 | Link | ||
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Quote:
To avoid problems encode 7.1 with qaac (the recommended and free AAC encoder) or fdkaac, when the source is the image 1 the decoded output is the same. Quote:
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7th November 2022, 11:10 | #172 | Link | ||
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Quote:
Quote:
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7th November 2022, 14:58 | #173 | Link |
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You need ffmpeg like decoder:
"C:\Portable\0\ffmpeg.exe" -i "input.thd" -acodec pcm_s24le -f wav - | "C:\Portable\0\qaac.exe" -V 91 --ignorelength --adts --no-delay -o "output.aac" -
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8th November 2022, 00:49 | #175 | Link |
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You are rigth, seems problems of these soft's with ADTS AAC format, without problems in MP4 container:
"C:\Portable\0\ffmpeg.exe" -i "input.thd" -acodec pcm_s24le -f wav - | "C:\Portable\0\qaac.exe" -V 91 --ignorelength --no-delay -o "output.m4a" -
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8th November 2022, 08:47 | #176 | Link | |
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Quote:
Thanks anyway. What software can display the effective AAC channel layout without the decoder changing it (like ffmpeg)? |
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8th November 2022, 15:07 | #177 | Link | |
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Yes, because the adts header have a field for NumChannels not for a MaskChannel. The qaac and fdkaac put '0' in that header field and MediaInfo and many decoders read that like AAC_7_1_B: C L R Ls Rs Lb Rb LFE
If NumChannels is '8' is read like AAC_7_1: C L R Ls Rs Lw Rw LFE I don't know where is documented that workaround. Quote:
After decode you need a wav editor than read the channelmask correctly The correct channelmask for a AAC_7_1: C L R Ls Rs Lw Rw LFE must be: 255 (FL FR FC LF BL BR FLC FRC) I recommend qaac to Decode .aac or .m4a: "qaac.exe" -D -b 24 -o "aac_.wav" "input" Now you can display "aac_.wav" with Audacity, Wavosaur, GoldWave or Audition
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11th November 2022, 14:46 | #180 | Link |
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November11, 2022 beta version 3.0.4.03.
Improved: Drag & Drop in Select Source section, in Multiplex section and in Join section (You can drag & drop on the full frame). Added: ffv1 encoding (level 1 and 3), ffv1 muxing. |
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