[FFmpeg-trac] #7720(undetermined:new): ffprobe and AVI audio delay
FFmpeg
trac at avcodec.org
Sun Feb 10 01:06:02 EET 2019
#7720: ffprobe and AVI audio delay
-------------------------------------+-------------------------------------
Reporter: DCTing | Owner:
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution:
Keywords: AVI | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by cehoyos):
Replying to [comment:4 DCTing]:
> 2-Play it. Note that in t=00:00:28:345 audio pronounces the word:
"TOKYO". This is the correct time where it must appear.
>
> 3-Do a simple process with ffmpeg, for example with command:
> {{{
> ffmpeg -i TEST1.AVI -c:v libx264 -c:a mp3 TEST2.AVI
> }}}
> (An error appears at the end, caused by the trimming operation, I don't
think its critical).
>
> 4-Play "TEST2.AVI" and note that the word "TOKYO" appears at
t=00:00:25:800, i.e. 2.5 seconds before it should. Compressed video gets
unusable!
The conversion needs `-async 1` (or an equivalent audio filter) because
audio is ''missing''. Are you sure that the avi header explicitely
contains the delay?
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7720#comment:5>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list