Am 04.01.2022 um 03:19 schrieb Hanna Frangiyyeh:
Hi Guys;
I have a video file that has an embedded alpha in it. I would like to have
it output two files, one RGB and the other Alpha. Any idea how to
accomplish this?
Making the RGB video is easy, just convert the pixel format to RGB.
For extra
Thanks Devin! I will recompile with libklvanc but I am a bit new at compiling,
I have been going off of this guide-
https://gist.github.com/afriza/879fed4ede539a5a6501e0f046f71463
Would I just add-
sudo apt-get update -qq && sudo apt-get -y install \
autoconf \
automake \
build-essential
Looking closer I see your note on pix_fmt, I will try with yuv422p10
ffmpeg -i /home/matt/VideoTests/1080i_TS_SampleFileCC.mpg-pix_fmt -ar:a 48000
yuv422p10 -s 1920x1080 -r 3/1001 -f decklink -a53cc 0 -map 0 -vcodec v210
"DeckLink SDI 4K"
From: Matt C
Sent
On Tue, Jan 4, 2022 at 9:43 AM Matt C wrote:
>
> Looking closer I see your note on pix_fmt, I will try with yuv422p10
>
> ffmpeg -i /home/matt/VideoTests/1080i_TS_SampleFileCC.mpg-pix_fmt -ar:a 48000
> yuv422p10 -s 1920x1080 -r 3/1001 -f decklink -a53cc 0 -map 0 -vcodec v210
> "DeckLink SDI
Hi Michael;
Sorry I'm a novice to ffmpeg, is there a way to do it in one command pass.
Also, do you have command that you can share?
Thank you.
Hanna
On Tue, Jan 4, 2022 at 1:17 AM Michael Koch
wrote:
> Am 04.01.2022 um 03:19 schrieb Hanna Frangiyyeh:
> > Hi Guys;
> > I have a video file that h
Hi Guys;
I'm new to ffmpeg and I'm trying to figure out what is wrong with the below
filter. It keep erroring out with the following error:
Unable to find a suitable output format for '[rgb_in][alpha_in][rgb_in]'
ffpmpeg -i "D:\TEMP\Source Files\720E\MLB21_INT_PLAYER_720.mov" -i
"D:\TEMP\Source F
Am 04.01.2022 um 21:12 schrieb Hanna Frangiyyeh:
Hi Guys;
I'm new to ffmpeg and I'm trying to figure out what is wrong with the below
filter. It keep erroring out with the following error:
Unable to find a suitable output format for '[rgb_in][alpha_in][rgb_in]'
ffpmpeg -i "D:\TEMP\Source Files\
Please post the complete command output, that's a great help in debugging.
z!
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Am 04.01.2022 um 18:04 schrieb Hanna Frangiyyeh:
Hi Michael;
Sorry I'm a novice to ffmpeg, is there a way to do it in one command pass.
Also, do you have command that you can share?
Here is an example:
rem Make a short test video with alpha channel
ffmpeg -f lavfi -i testsrc2=s=1920x1080:d=3
Am 04.01.2022 um 21:23 schrieb Michael Koch:
Am 04.01.2022 um 21:12 schrieb Hanna Frangiyyeh:
Hi Guys;
I'm new to ffmpeg and I'm trying to figure out what is wrong with the
below
filter. It keep erroring out with the following error:
Unable to find a suitable output format for '[rgb_in][alpha
Thank you.
Hanna
On Tue, Jan 4, 2022 at 1:06 PM Michael Koch
wrote:
> Am 04.01.2022 um 18:04 schrieb Hanna Frangiyyeh:
> > Hi Michael;
> > Sorry I'm a novice to ffmpeg, is there a way to do it in one command
> pass.
> > Also, do you have command that you can share?
>
> Here is an example:
>
> r
Ok, I added the commas, now I have the following error:
PS D:\TEMP\Source Files\Audio>
D:\Apps\AudioRendering\AudioRendering\AudioRendering\ffmpeg.exe -i
"D:\TEMP\Source Files
\720E\MLB21_INT_PLAYER_720.mov" -i "D:\TEMP\Source
Files\Audio\file_example_WAV_1MG.wav" -vf scale=1920:1080 -filter_com
p
Am 04.01.2022 um 22:26 schrieb Hanna Frangiyyeh:
Ok, I added the commas, now I have the following error:
PS D:\TEMP\Source Files\Audio>
D:\Apps\AudioRendering\AudioRendering\AudioRendering\ffmpeg.exe -i
"D:\TEMP\Source Files
\720E\MLB21_INT_PLAYER_720.mov" -i "D:\TEMP\Source
Files\Audio\file_exa
Hi Michael;
I getting now the error message below:
PS D:\TEMP\Source Files\Audio>
D:\Apps\AudioRendering\AudioRendering\AudioRendering\ffmpeg.exe -i
"D:\TEMP\Source Files\
720E\MLB21_INT_PLAYER_720.mov" -i "D:\TEMP\Source
Files\Audio\file_example_WAV_1MG.wav" -filter_complex 'split [rgb_in][
alpha
Hi all,
There seems to be no support for the heif still image file format in
ffmpeg. Wonder whether there is any reason for this (other than we
haven't had cycles to add support).
Thanks,
-Chema
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Just trying to make sure I get this right in the compile as I have not added
things before.
If I addlibklvanc \to
sudo apt-get update -qq && sudo apt-get -y install \
like this:
sudo apt-get update -qq && sudo apt-get -y install \
autoconf \
automake \
build-essential \
cmake \
Maybe I got it, but not sure...?
~/libklvanc-master$ ./autogen.sh --build
aclocal: warning: couldn't open directory 'm4': No such file or directory
configure.ac:32: error: possibly undefined macro: AC_PROG_LIBTOOL
If this token and others are legitimate, please use m4_pattern_allow.
Se
It is looking better but still getting
"ERROR: libklvanc not found" with:
cd ~/ffmpeg_sources
wget https://ffmpeg.org/releases/ffmpeg-4.4.tar.bz2
tar -xvf ffmpeg-*.tar.bz2
cd ffmpeg-*/
PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig"
./configure \
--prefix="$HOME/ffmp
Hello everyone!
Thank you for your help the other day everyone, I just think I somewhat figured
it out after lots of research, but English is not my first language and it's
lots of pages of documentation to go through in a single day
Things like "Stream" took me a while to translate to being
Ok, got ffmpeg to compile, just needed "sudo make install" in the libklvanc
dir, total noob 😋
And captions are passing out the decklink! THANK YOU!
From: ffmpeg-user on behalf of Matt C
Sent: Wednesday, January 5, 2022 5:08 AM
To: FFmpeg user questions
Subjec
[matroska @ 02374709c3c0] Timestamps are unset in a packet for stream 4.
This is deprecated and will stop working in the future. Fix your code to set
the timestamps properly
Nvm I think I figured it out with: -fflags +genpts
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