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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
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Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
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Sur d’autres sites (7175)
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How to get audio track assignment in ffmpeg
16 février 2012, par David542Is there a way to get the audio track assignment in
ffmpeg
? For example, if you are in QuickTime, you can view info (Command - I), and see the track assignment. It looks something like this :Apple ProRes 422 (HQ), 1,920 x 1,080
Linear PCM, 24 bit little-endian signed integer, 48000 Hz, **Left**
Linear PCM, 24 bit little-endian signed integer, 48000 Hz, **Right**
Linear PCM, 24 bit little-endian signed integer, 48000 Hz, **Center**
Linear PCM, 24 bit little-endian signed integer, 48000 Hz, **LFE Screen**
etc...When I do
$ ffmpeg -i
, it does not show the track assignments —Stream #0:12(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels, s32, 1152 kb/s
Metadata:
creation_time : 2010-09-16 02:23:49
handler_name : ?Apple Alias Data Handler
Stream #0:13(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels, s32, 1152 kb/s
Metadata:
creation_time : 2010-09-16 02:23:49
handler_name : ?Apple Alias Data Handler
Stream #0:14(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels, s32, 1152 kb/s
Metadata:
creation_time : 2010-09-16 02:23:49
handler_name : ?Apple Alias Data Handler
Stream #0:15(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, stereo, s32, 2304 kb/s
Metadata:
creation_time : 2010-09-16 02:23:49
handler_name : ?Apple Alias Data Handler
Stream #0:16(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, stereo, s32, 2304 kb/sIs there a way to get the track assignments in ffmpeg or another program ?
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Issue with repairing 3GP video using untrunc - Error : bad track : 's263'
2 juillet 2023, par sifiribI am trying to repair a corrupted 3GP video using the untrunc program, but I'm facing an issue due to an error.


The command I ran :


./untrunc -v ~/Desktop/logic/Video0086.3gp ~/Desktop/logic/Video0035.3gp



I am running Ubuntu 20.04 LTS and using the 'v308-d72ec32' version of the untrunc. The error message I encounter is as follows :


Info: version 'v308-d72ec32' using ffmpeg '4.4.2-0ubuntu0.22.04.1'
Info: reading /home/hsrv/Desktop/logic/Video0086.3gp
Info: parsing healthy moov atom ... 
ftyp_ = 'mp42'
[amrnb @ 0x56075d7656c0] Multiple frames in a packet.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/hsrv/Desktop/logic/Video0086.3gp':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: isommp42
 creation_time : 2014-04-26T21:38:29.000000Z
 com.android.version: 12
 Duration: 00:02:22.80, start: 0.000000, bitrate: 154 kb/s
 Stream #0:0(eng): Video: h263 (s263 / 0x33363273), yuv420p, 176x144 [SAR 12:11 DAR 4:3], 140 kb/s, 10.74 fps, 11 tbr, 90k tbn, 29.97 tbc (default)
 Metadata:
 creation_time : 2023-07-02T15:34:22.000000Z
 handler_name : VideoHandle
 vendor_id : [0][0][0][0]
 Stream #0:1(eng): Audio: amr_nb (samr / 0x726D6173), 8000 Hz, mono, flt, 12 kb/s (default)
 Metadata:
 creation_time : 2023-07-02T15:34:22.000000Z
 handler_name : SoundHandle
 vendor_id : [0][0][0][0]
ss: s263 is_stable: 0
ss: using f=7 span
assuming constant duration of 640 for 'samr' (x1785)

Info: unknown track 's263' found -> fallback to dynamic stats
created dummy track 'free'
removed dummy track 'free'
first_failed: 0 of 101
simpleOrder: 0 
order ( 101): (0, 14) (0, 11) (0, 11) (0, 12) (0, 11) (0, 12) (0, 11) (0, 12) (0, 11) (0, 11) (0, 11) (0, 11) (0, 12) (0, 12) (0, 11) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 11) (0, 11) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 11) (0, 11) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 11) (0, 11) (0, 12) (0, 11) (0, 11) (0, 12) (0, 12) (0, 11) (0, 12) (0, 12) (0, 11) (0, 10) (0, 12) (0, 12) (0, 12) (0, 11) (0, 12) (0, 11) (0, 10) (0, 12) (0, 11) (0, 11) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 12) (0, 10) (0, 12) (0, 11) (0, 11) (0, 12) (0, 12) (0, 12) (0, 12) 
isTrackOrderEnough: 0 (sz=0)
genPatternPerm of: s263
0 s263 0.918296 3
1 samr 1 2
genPatternPerm of: samr
0 s263 4.8125 32
1 samr 0 1
has_zero_transitions_: 0
**Error: bad track: 's263'**



This error message indicates that the untrunc program is having trouble with a track named 's263'. This track could be a track or codec within the video file.


How can I resolve this error and successfully repair the corrupted 3GP video ? What steps should I follow or can you suggest an alternative approach ?


Thank you in advance !


I was expecting trunc tool to fix the corrupted/trunced video. But it gave me this error and no matter how much I searched for a solution, I couldn't find anything.


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Revision 17084657e6 : vpxenc : add —aq-mode flag to control adaptive quantization Change-Id : I57e1ad4
14 novembre 2013, par Guillaume MartresChanged Paths :
Modify /vp9/common/vp9_onyx.h
Modify /vp9/encoder/vp9_encodeframe.c
Modify /vp9/encoder/vp9_firstpass.c
Modify /vp9/encoder/vp9_onyx_if.c
Modify /vp9/encoder/vp9_onyx_int.h
Modify /vp9/vp9_cx_iface.c
Modify /vpx/vp8cx.h
Modify /vpxenc.c
vpxenc : add —aq-mode flag to control adaptive quantizationChange-Id : I57e1ad4bed3487df12893ced77c49093f8755706