[FFmpeg-trac] #11490(avformat:new): [Regression] Audio silent for long MOV file (was: Audio silent for long MOV file [regression])

FFmpeg trac at avcodec.org
Tue Mar 4 12:28:50 EET 2025


#11490: [Regression] Audio silent for long MOV file
------------------------------------+------------------------------------
             Reporter:  cgbug       |                    Owner:  (none)
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mov         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  1           |
------------------------------------+------------------------------------
Changes (by MasterQuestionable):

 * analyzed:  0 => 1
 * cc: MasterQuestionable (added)
 * component:  undetermined => avformat
 * keywords:   => mov
 * summary:  Audio silent for long MOV file [regression] => [Regression]
     Audio silent for long MOV file

Comment:

 ͏    Interpreted link:
 ͏
 https://drive.usercontent.google.com/download?export=download&id=1-rNZyZCykN083EPlSRDS2_heAr7vERlO
 ͏    ("Delta Force Urban Warfare PS1 Walkthrough [No Damage].mov": ~ 10.61
 GiB)

 ͏    @ 2025-01-10T13:39:00Z
 ͏
 https://github.com/FFmpeg/FFmpeg/commit/292c1df7c159c8a1a7afe52613d164ff417e81ce
 ͏    “avformat/mov: merge stts and ctts arrays into one
 ͏    Should reduce memory usage as well as remove code duplication.”

 ͏    Please report:
 ͏    `ffprobe -hide_banner -threads 0 -show_entries
 "stream=time_base:format=size" -of "flat=h=0" "${In}"`
 ͏    ; of such huge source.

 ͏    Also please verify if it's reproducible when remuxed to other
 containers.
 ͏    (assume there's no problem in the audio itself, after all)

 ͏    ----

 ͏    Note:
 ͏    Google currently reports:
 [[
 ͏    Google Drive - Quota exceeded
 ͏    Sorry, you can't view or download this file at this time.

 ͏    Too many users have viewed or downloaded this file recently.
 ͏    Please try accessing the file again later.
 ͏    If the file you are trying to access is particularly large or is
 shared with many people, it may take up to 24 hours to be able to view or
 download the file.
 ͏    If you still can't access a file after 24 hours, contact your domain
 administrator.
 ]]
 ͏    (tested only anonymous access)
 ͏    .
 ͏    Not IP blocked, nor access method change.
 ͏    (other file may work; haven't specifically tested large ones)
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11490#comment:1>
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