why no AAC passthrough ?
Posted: Mon Jun 15, 2020 8:43 am
Description of problem or question:
Hi, have been shooting videos with variety of apps on my iPhone (Filmic Pro, Movie Pro) and am able to record the audio uncompressed (mono AIFF for Filmic, stereo PCM for Movie Pro).
Now, in order to retain the original uncompressed audio while converting the H264 video recording to H265 in handbrake, I put the settings to AAC Passthru. This is no problem with a Filmic recording, but when using Movie pro, this option doesn't even show up. As options, I only get :
- AAC (coreaudio)
- HE-AAC (coreaudio)
- AC3
- E-AC3
- mp3
How come that I don't have the passthru option with PCM ? It's a stereo lpcm CBR 16bits 48 kHz recording ...
HandBrake version (e.g., 1.0.0):
1.3.2
Operating system and version (e.g., Ubuntu 16.04 LTS, macOS 10.13 High Sierra, Windows 10 Creators Update):
MacOs Catalina 10.15.2
HandBrake Activity Log ***required*** (see How-to get an activity log)
Hi, have been shooting videos with variety of apps on my iPhone (Filmic Pro, Movie Pro) and am able to record the audio uncompressed (mono AIFF for Filmic, stereo PCM for Movie Pro).
Now, in order to retain the original uncompressed audio while converting the H264 video recording to H265 in handbrake, I put the settings to AAC Passthru. This is no problem with a Filmic recording, but when using Movie pro, this option doesn't even show up. As options, I only get :
- AAC (coreaudio)
- HE-AAC (coreaudio)
- AC3
- E-AC3
- mp3
How come that I don't have the passthru option with PCM ? It's a stereo lpcm CBR 16bits 48 kHz recording ...
HandBrake version (e.g., 1.0.0):
1.3.2
Operating system and version (e.g., Ubuntu 16.04 LTS, macOS 10.13 High Sierra, Windows 10 Creators Update):
MacOs Catalina 10.15.2
HandBrake Activity Log ***required*** (see How-to get an activity log)
Code: Select all
[10:10:56] macgui: ScanCore scanning titles with a duration of 10 seconds or more
[10:10:56] CPU: Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz
[10:10:56] - Intel microarchitecture Haswell
[10:10:56] - logical processor count: 8
[10:10:56] hb_scan: path=/Users/***/***/***/***.mov, title_index=0
udfread ERROR: ECMA 167 Volume Recognition failed
disc.c:323: failed opening UDF image /Users/***/***/***/***.mov, title_index=0.mov
disc.c:424: error opening file BDMV/index.bdmv
disc.c:424: error opening file BDMV/BACKUP/index.bdmv
bluray.c:2585: nav_get_title_list(/Users/***/***/***/***.mov, title_index=0) failed
[10:10:56] bd: not a bd - trying as a stream/file instead
libdvdnav: Using dvdnav version 6.0.1
libdvdread: Encrypted DVD support unavailable.
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[10:10:56] dvd: not a dvd - trying as a stream/file instead
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/***/***/***/***.mov, title_index=0':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
creation_time : 2020-06-15T08:04:05.000000Z
com.apple.quicktime.creationdate: 2020-06-15 08:32:04 CEST
Duration: 00:38:26.90, start: 0.000000, bitrate: 32153 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 30615 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (default)
Metadata:
creation_time : 2020-06-15T08:04:05.000000Z
handler_name : Core Media Video
encoder : H.264
Stream #0:1(und): Audio: pcm_s16le (lpcm / 0x6D63706C), 48000 Hz, 2 channels, s16, 1536 kb/s (default)
Metadata:
creation_time : 2020-06-15T08:04:05.000000Z
handler_name : Core Media Audio
[10:10:56] scan: decoding previews for title 1
[10:10:56] scan: audio 0x1: pcm_s16le, rate=48000Hz, bitrate=1536000 Unknown (pcm_s16le) (2.0 ch) (1536 kbps)
[10:10:58] scan: 10 previews, 1920x1080, 30.000 fps, autocrop = 0/0/0/0, aspect 16:9, PAR 1:1
[10:10:58] libhb: scan thread found 1 valid title(s)
[10:10:58] macgui: ScanCore scan done