Thank you but it produces the same result as before.
I have tried the following commands
ffmpeg -err_detect ignore_err -i old.mp4 -c copy new.mp4
ffmpeg -i old.mp4 -map 0:v -c copy video_only.mp4
ffmpeg -i old.mp4 -map 0:a -c copy audio_only.aac
ffmpeg -i old.mp4 -fflags +genpts -c copy new.mp
, if possible.
Alan
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Hi, Vincent,
Thank you for your suggestion.
Let me explain the real case: I have many MP4 files which lost some data in
the tail,
which make them not playable. I analyze these files manually and find the
ftyp and
moov boxes and their child boxes are all OK. But part of the data in mdat
box are
lo
>
>
>
> > So, how to reassemble the raw packet data back to a new MP4 file?
>
> That's not possible in general, because your raw packets do not
> contain sufficient information to create an MP4 file.
>
> I suggest that you explain why you are actually doing all of that.
> What is the purpose, what
Thank you.
In that case, what are some video editor software does with the videos?
They can cut some frames from the original video and create a new MP4 file.
Are these software just decode and uncompress everything, then remove some
frames, then re-encode and re-compress the remaining video?
___
What I remove is the last video and audio packet in each stream. All the
meta data are still there, together with all remaining packet data as
separate files. But I don't know how to utilize them in the commandline to
reassemble the packets.
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I try on another MP4 file with H264 codec video, but still get the same
result.
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I am using ffmpeg.
I use the following command to get all packet info:
ffprobe -print_format json -show_packets -show_streams -show_entries
packet=pts,duration,size,codec_type,pos test.mp4 > test.mp4.info
Then based on each packet info, such as the one below:
{
"codec_type":
g to convert ripped DVD movies and TV shows to
MP4 for Plex
On Thu, Dec 21, 2023 at 12:48 PM Alan Malmberg <
alanmalm-at-hotmail@ffmpeg.org> wrote:
> I have hundreds of ripped DVDs in vob format that I want to BATCH JOB to
> single mp4 files WITH SURROUND SOUND for use with Plex serv
then
multiple disks per season. How best to do that?
I think I may have got the movie side almost done, but would still like
pointers. The main issue now is the episodic TV shows that have been ripped.
Thanks,
Alan
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ffmpeg
lp in preventing the
quality of the videos being degraded between the original .media files and
the final file.
Alan
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dump or log that
so that I can use it with the graph tool?
> On Mar 8, 2022, at 3:02 PM, Carl Zwanzig wrote:
>
> On 3/8/2022 11:50 AM, Alan Petrus wrote:
>> If so, can someone please point me in the right direction to look up
>> documentation or examples of this case
Hello,
I am trying to figure out how FFmpeg command line tool chains commands and
runs them behind the scene and I'm wondering if it has concept of pipeline
and pipeline graphs much like Gstreamer has; For example,
https://gstreamer.freedesktop.org/documentation/tutorials/basic/images/playbin.png
Hello,
I'm capturing video from a usb capture (hdmi to usb) and converting it to
dash via ffmpeg and then serving it via nginx. The FFmpeg 4.3.3 command
line I'm using on Raspberry Pi 3:
sudo ffmpeg -y -f v4l2 -input_format yuyv422 -video_size 1920x1080
-framerate 5 -i /dev/video0 -vcodec h264_v
cs on the piano, one at the
bass end and one at the treble. Classical, think 2 mics in an open
grand piano.
Thank you.
On 4/18/21, Moritz Barsnick wrote:
> On Sat, Apr 17, 2021 at 13:42:02 -0400, Alan Corey wrote:
>> can deal with. So I did the basic
>> ffmpeg -i somefile.wma so
to get into channel mapping?
Joint stereo I remember from the early days of fm stereo that had to
also be playable on mono radios. Better than mono but not as good as
true stereo.
Alan
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get this info,
but initially looking to scrape the answers from ffmpeg output.
Thanks
Alan
Alan White
a...@whitemail.net
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Ah! Thanks! I'll bow out and head over to libav-user now... Not sure how I
got that wrong. :-\
Alan
On Thu, Dec 21, 2017 at 4:33 PM, Lou Logan wrote:
> On Thu, Dec 21, 2017, at 3:07 PM, Alan Moore wrote:
> > On a separate note, is this the right place to ask questions about the
Carl,
On Sun, Dec 10, 2017 at 5:56 AM, Carl Eugen Hoyos
wrote:
> 2017-12-08 22:28 GMT+01:00 Alan Moore :
>
> > What should I expect in terms of being able to record or playback
> > DNxHR in MXF containers using FFMPEG and the compatibility
> > of those clips in major N
ut am still no
closer to an answer as to why it doesn't work... combined with the fact
that MC give me no error message whatsoever, that curse sure has worked
it's horror on me pretty badly by this point. Not sure how much more I can
take.
Alan
>
> Carl Eugen
> __
Hi Erik,
Thanks for you reply. I'm sorry for my late response but a surgery has kept
me away from this task for some time. Responses inline below.
On Sat, Dec 9, 2017 at 12:56 AM, Erik Dobberkau
wrote:
> Hi Alan,
>
> What should I expect in terms of being able to record or pla
error message saying it cannot link but no console log entry
saying exactly what it doesn't parse/like about the file.
I just need to know what works and what doesn't.
Thanks!
Alan
--
*"Whatever you can do, or dream you can do, begin it. Boldness has genius,
powe
After installing theora using:
brew install theora
I tried:
./configure --prefix=/usr/local --enable-gpl --enable-nonfree
--enable-libtheora
ERROR: libtheora not found
As requested, I have attached config.log
Thanks,
Alan
See http://ab1jx.1apps.com/video/pballsm.html where it's online.
On 2/24/17, Alan Corey wrote:
> The only time I've done that I used -movflags faststart (no + before
> faststart):
>
> ffmpeg -f image2 -framerate 25 -i balls__%04d.png -movflags
> faststart -c:v libv
The only time I've done that I used -movflags faststart (no + before faststart):
ffmpeg -f image2 -framerate 25 -i balls__%04d.png -movflags
faststart -c:v libvpx -b:v 1M -c:a libvorbis bballs.webm
This was for making a video playable under HTML5. I don't have the
docs handy. Plays OK in Fi
On 2/13/17, Carl Eugen Hoyos wrote:
> 2017-02-14 0:09 GMT+01:00 Alan Corey :
>
>> This kind of sequence doesn't work:
>> 2017-02-12_01-30.005.gif
>> 2017-02-12_01-30.006.gif
>> 2017-02-12_01-30.007.gif
>> 2017-02-12_02-00.005.gif
>> 2017-02-12_02-
-12_02-00.005.gif
2017-02-12_02-00.006.gif
2017-02-12_02-00.007.gif
Alan Corey
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