[FFmpeg-user] useful tools for beginners

Hello everybody, as I've said before, I am a student and I'm triyng to learn how to use ffmpeg. It is not an easy task, because there is not a lot of documents that explain it in a easy way. I would like to share with you the tools I found useful, and I ask you to reply linking the resourcies and

Re: [FFmpeg-user] How to add 1or more black frames @ the beginning and @ the end of a film with audio, without transcoding?.

Feb 18, 2021, at 03:32, Marco Mircoli wrote: > > > > Hello, > > I was just asking an help, something like...a weblink to something > > similar I could adapt, an example. > > I am a student, I am learning by myself. It's not easy, because online > > there are n

Re: [FFmpeg-user] How to add 1or more black frames @ the beginning and @ the end of a film with audio, without transcoding?.

18 feb 2021 alle ore 12:02 Paul B Mahol ha scritto: > On Thu, Feb 18, 2021 at 11:33 AM Marco Mircoli > wrote: > > > Hello, > >tried a lot of times, but nothingI can't do it well. > > Any advice? > > The goal is to do it with a single command line. &g

[FFmpeg-user] mcompand: anybody knows how to use it?

Hello everibody, tried few times to use it, never succeed :-( Read on internet all the document available on this filet, but nothing. Any help? Thanks. S. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

[FFmpeg-user] How to add 1or more black frames @ the beginning and @ the end of a film with audio, without transcoding?.

Hello, tried a lot of times, but nothingI can't do it well. Any advice? The goal is to do it with a single command line. Thanks. S. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To

Re: [FFmpeg-user] Same output bit depth and sampling frequency as input?

I think it is not a bug. It is normal that dynaudnorm and loudnorm gives differents results, they are 2 different instruments and they have different parameters and actions. Thanks. S. Il giorno dom 14 feb 2021 alle ore 12:08 Paul B Mahol ha scritto: > On Sun, Feb 14, 2021 at 12:01 PM Ma

Re: [FFmpeg-user] Same output bit depth and sampling frequency as input?

Yes, the result Is not leveled to the target loudness value Il Ven 12 Feb 2021, 19:26 Paul B Mahol ha scritto: > On Fri, Feb 12, 2021 at 7:17 PM Marco Mircoli > wrote: > > > Il giorno ven 12 feb 2021 alle ore 10:53 Paul B Mahol > > ha > > scritto: > > >

Re: [FFmpeg-user] Same output bit depth and sampling frequency as input?

Il giorno ven 12 feb 2021 alle ore 10:53 Paul B Mahol ha scritto: > On Fri, Feb 12, 2021 at 12:48 AM Marco Mircoli > wrote: > > > Hello everybody, > > wondering how to set the same output audio specs (sample rate anche bit > > depth) as input. > > > &

[FFmpeg-user] Same output bit depth and sampling frequency as input?

Hello everybody, wondering how to set the same output audio specs (sample rate anche bit depth) as input. I tried like that ffmpeg -i FILE_FROM -af dynaudnorm,loudnorm=I=-16. 5:TP=-1.5:LRA=7 -sample_fmt s16 -ar 44100 FILE_TO if I have a 48KHZ input, the output is 44100, so doesn't work for

[FFmpeg-user] Filter just the 1st audio channel of the input.

Hello, wandering if it is possible to process just the 1st audio channel of an input. I don't know how many channels I will have as input, but I know that I have to process just the 1st and the others I have not to considerate. INPUT from mono to multichannel filters. OUTPUT just one

Re: [FFmpeg-user] VOICE POST PRODUCTION IN ONE LINE

ergraph and forgetting about them next second. > > > > On Fri, Jan 29, 2021, 10:21 PM Paul B Mahol wrote: > > > > > On Fri, Jan 29, 2021 at 12:18 PM Marco Mircoli > > > wrote: > > > > > > > Thanks, > > > > is ther

Re: [FFmpeg-user] VOICE POST PRODUCTION IN ONE LINE

ha scritto: > On Fri, Jan 29, 2021 at 11:25 AM Marco Mircoli > wrote: > > > Hello, > > anybody knows the reason why this command works. > > > > $ffmpegCmd = "ffmpeg -i $fileOriginale -af > > > > > adeclick,afftdn=nr=80:nf=-20:

Re: [FFmpeg-user] VOICE POST PRODUCTION IN ONE LINE

orno gio 28 gen 2021 alle ore 10:15 Michael Koch < astroelectro...@t-online.de> ha scritto: > Am 28.01.2021 um 09:44 schrieb Marco Mircoli: > > Goodmorning everyone. > > I'm new to ffmpeg and was wondering if anyone from the group could help > me > > set up a command line

Re: [FFmpeg-user] Tool to write ffmpeg strings

me fairly complex situations and, in the logs, provides the > ffmpeg command that it used to get there. > My need at the time was video specific. I'm unsure if it supports all the > audio filters you're looking for. > > -Jason > > > > On Thu, Jan 28, 2021 at 2:17 AM

Re: [FFmpeg-user] Tool to write ffmpeg strings

. S. Il giorno gio 28 gen 2021 alle ore 10:24 Chris Miceli ha scritto: > Hi Marco, > > If you are a user of MacOS then have a look at Handbrake. I think there is > a windows version as well but as a Linux user I'm not 100% sure. > > If you hunt for "handbrake alternative

[FFmpeg-user] Tool to write ffmpeg strings

Hello, my problem is that I am not a programmer (I'm a sound designer) I would like to approach FFMPEG. It's hard for me to learn the syntax of ffmpeg. Do you know if is there a tool that let me use ffmpeg filters in a frontend environment and shows me the command line of what I'm doing?

[FFmpeg-user] VOICE POST PRODUCTION IN ONE LINE

Goodmorning everyone. I'm new to ffmpeg and was wondering if anyone from the group could help me set up a command line. My goal is to improve voice audio recordings. I would like to be able to do this starting from a command line I have in my script, modifying it to add: - 70HZ high pass filter -

Re: [FFmpeg-user] how to burn subtitles and transcode live stream

Good morning Who can I write to for help? M. *--Marco Sestan* Director *Audio-Video Production& PostProduction Manager* *Mob: +39 348 47 39 003* Il giorno sab 24 ott 2020 alle ore 01:45 Moritz Barsnick ha scritto: > Hi Daniel, > > On Wed, Oct 21, 202

Re: [FFmpeg-user] DE-REBERB

As plugin I mean LADSPA plugin Il giorno sab 3 ott 2020 alle ore 13:46 Marco Mircoli ha scritto: > Hello, >quite interested if there is a de-reverb funcion in ffmpeg or if is it > possible to implement via plugins. > Thank

[FFmpeg-user] DE-REBERB

Hello, quite interested if there is a de-reverb funcion in ffmpeg or if is it possible to implement via plugins. Thanks in advance. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe,

Re: [FFmpeg-user] HIGHPASS FILTER AND ID£ METADATA

gency' -metadata Language=italian -b:a ".$convert_speed."k $audio_output_mp3 2>&1"); Now, I would like to insert an album artwork in the mp3. Is it possible? Thanks. S. Il giorno gio 1 ott 2020 alle ore 17:45 Marco Mircoli ha scritto: > Hello, tried but doesn't work correctl

Re: [FFmpeg-user] HIGHPASS FILTER AND ID£ METADATA

output_mp3 2>&1"); Tried with 700 hz the result is very low in volume it seems that it normalize to -24 and after apply the highpass another point I can't fix is the metadata, they works except for the author:url. Maybe am I wrong with syntax? Thanks in advance. Il giorno gio 1 ot

Re: [FFmpeg-user] HIGHPASS FILTER AND ID£ METADATA

Thanks a lot! Il giorno gio 1 ott 2020 alle ore 14:17 Michael Koch < astroelectro...@t-online.de> ha scritto: > Am 01.10.2020 um 14:06 schrieb Michael Koch: > > Am 01.10.2020 um 13:25 schrieb Marco Mircoli: > >> Hello', > >> I'm a newbie. > >>

[FFmpeg-user] HIGHPASS FILTER AND ID£ METADATA

Hello', I'm a newbie. Just bought a php script that use ffmpeg. it converts to mp3/96Kbps all media uploaded in a unique format. this is the line, and now it normalizes to R128 (thanks Moritz) $shell = shell_exec("$ffmpeg_b -i $audio_file_full_path -map 0:a:0 -af loudnorm -b:a 96k

Re: [FFmpeg-user] HOW TO APPLY LOUDNESS R128 PROFILE

Thank you! Il giorno gio 24 set 2020 alle ore 09:54 Paul B Mahol ha scritto: > On Wed, Sep 23, 2020 at 03:30:25PM +0200, Marco Mircoli wrote: > > Thanks Motitz, > >this is a one pass norm. > > Is there a way to implement 2 pass? > > Yes there is a way, you ca

Re: [FFmpeg-user] HOW TO APPLY LOUDNESS R128 PROFILE

Thanks Motitz, this is a one pass norm. Is there a way to implement 2 pass? Thanks. S. Il giorno mer 23 set 2020 alle ore 14:42 Moritz Barsnick ha scritto: > On Wed, Sep 23, 2020 at 14:16:31 +0200, Marco Mircoli wrote: > > Just bought a php script that use ffmpeg. > > I

[FFmpeg-user] HOW TO APPLY LOUDNESS R128 PROFILE

Hello', I'm a newbie. Just bought a php script that use ffmpeg. it converts to mp3/96 all media uploaded in a unique format. this is the line $shell = shell_exec("$ffmpeg_b -i $audio_file_full_path -map 0:a:0 -b:a 96k $audio_output_mp3 2>&1"); I'm wondering if it is possible to include in

[FFmpeg-user] Multiple FFMpeg-Cuda-HLS-Transcoding Instances -> Deadlock Behavior

ILE_NAME $MEDIA_PLAYLIST_PREFIX Please help me to fix this behavior. Best regards Marco Kittel pEpkey.asc Description: application/pgp-keys ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To uns

[FFmpeg-user] Implicit Transcoding of Video/Audio Content in an TS MUX MPEG Container to HLS

options, in order to say in the last where via var_map how my content is arranged in a media playlist. Is their a way to that ffmpeg implicitly takes the video track and takes all audio content and maps it to hls? Best regards Marco Kittel pEpkey.asc Description: application/pgp-keys

[FFmpeg-user] Sending partial GOP / flushing buffers

. the whole 250 GOP is written at once. Is there any way to force buffers to be flushed more frequently without increasing the number of i-frames? I would like to start processing the data as soon as possible rather than having to wait for all 250 frames to be processed. - Marco

Re: [FFmpeg-user] Creat mosaic without loose quality

target to place the four video together, do you have any idea to speed up the file creation? Regards On Sunday, November 26, 2017, 12:49:17 PM GMT+1, Carl Eugen Hoyos <ceffm...@gmail.com> wrote: 2017-11-26 8:51 GMT+01:00 Marco De Angelis <marcod71-at-yahoo@ffmpeg.org

Re: [FFmpeg-user] Cannot set ALSA buffer size (Invalid argument) during capture

Well, thank you! FFmpeg is an impressive project. -- Marco ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject

Re: [FFmpeg-user] Cannot set ALSA buffer size (Invalid argument) during capture

131072 was enough. -- Marco ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

Re: [FFmpeg-user] Cannot set ALSA buffer size (Invalid argument) during capture

a max buffer size of about 20 million frames, which is way more than what is really needed and causes a memory allocation error on my system. :04 04 bc8ae5608ccfe6b46dc90633c535d91b4c6c0e2b 88c1baef83722b3310430a9933221876d0db6095 M libavdevice Best,

Re: [FFmpeg-user] Cannot set ALSA buffer size (Invalid argument) during capture

On Sun, Nov 26, 2017 at 8:02 PM, Carl Eugen Hoyos wrote: > > Then please use git bisect to find the change > introducing the regression. I'm trying, but many commits do not compile properly. Specifically, I'm stuck with: make: *** No rule to make target 'libavutil/macros.h',

Re: [FFmpeg-user] Cannot set ALSA buffer size (Invalid argument) during capture

> > > Thanks! With this, 0.6.7 runs > > Sorry, I don't understand this sentence. ​Using the option '-ac 2', ffmpeg 0.6.7 works. But, using the same option, the current version from the master git branch doesn't work. -- Marco ​ ___ ffmp

Re: [FFmpeg-user] Cannot set ALSA buffer size (Invalid argument) during capture

> $ ffmpeg -f alsa -ac 2 -i hw:1,0 -t 30 out.wav Thanks! With this, 0.6.7 runs but newer versions still complain about: [alsa @ 0x55eb8e2a6780] cannot set ALSA buffer size (Invalid argument) hw:1,0: Input/output error Any idea? -- Marco ___ ffm

Re: [FFmpeg-user] Cannot set ALSA buffer size (Invalid argument) during capture

gcc 7.2.0 configuration: --disable-vaapi --disable-ffserver --prefix=/home/marco/ffmpeg_build --extra-cflags=-I/home/marco/ffmpeg_build/include --bindir=/home/marco/bin libavutil 50.15. 1 / 50.15. 1 libavcodec52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52

Re: [FFmpeg-user] Cannot set ALSA buffer size (Invalid argument) during capture

: --prefix=/home/marco/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/marco/ffmpeg_build/include --extra-ldflags=-L/home/marco/ffmpeg_build/ lib --extra-libs='-lpthread -lm' --bindir=/home/marco/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable

[FFmpeg-user] Cannot set ALSA buffer size (Invalid argument) during capture

: subdevice #0 card 1: Em28xxAudio [Em28xx Audio], device 0: Em28xx Audio [Empia 28xx Capture] Subdevices: 1/1 Subdevice #0: subdevice #0 and I can capture audio/video without problems using the `qv4l2` test bench. Thanks! Marco ___ ffmpeg-user mailing

Re: [FFmpeg-user] Creat mosaic without loose quality

hursday, November 23, 2017, 1:24:27 PM GMT+1, Carl Eugen Hoyos <ceffm...@gmail.com> wrote: 2017-11-23 12:52 GMT+01:00 Marco De Angelis <marcod71-at-yahoo@ffmpeg.org>: > C:\S7\ffmpeg\bin\ffmpeg -i C:\S7\FTP_video\1.mp4 -i C:\S7\FTP_video\2.mp4 > -i C:\S7\FTP_video\3.mp4 -i C:

Re: [FFmpeg-user] Creat mosaic without loose quality

This is the command C:\S7\ffmpeg\bin\ffmpeg -i C:\S7\FTP_video\1.mp4 -i C:\S7\FTP_video\2.mp4 -i C:\S7\FTP_video\3.mp4 -i C:\S7\FTP_video\4.mp4 -filter_complex "nullsrc=size=1920x1080 [base]; [0:v] setpts=PTS-STARTPTS, scale=960x540 [upperleft]; [1:v] setpts=PTS-STARTPTS, scale=960x540

[FFmpeg-user] Creat mosaic without loose quality

Hello, I'm pretty new to video processing and I came across this usuful tool. Using the info I found on the following page I created a mosaic using four mp4 files (original frame rate is 60 fps). Create a mosaic out of several input videos – FFmpeg | | | | | | | | | | | Create a

Re: [FFmpeg-user] Segmentation fault in Ubuntu 17.04 using NVENC

Found the problem. SOLVED. Ignore last thread, was a misconfiguration. Il giorno ven, 14/04/2017 alle 02.56 +0200, Marco ha scritto: > Hello, > > i updated my Ubuntu to 17.04 > > I have a self-compiled FFMPEG with this script: > https://pastebin.com/hQekxBsN > > I hav

[FFmpeg-user] Segmentation fault in Ubuntu 17.04 using NVENC

in advance. Sorry for bad english Marco. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".

[FFmpeg-user] Missing bitrate information on AAC encoded videos

Hello, i use to encode the audio of my movie using libfdk_aac, but in the result file doesn't appear the used bitrate (with mediainfo, ffprobe, etc.). I encode using CBR mode, in general matroska container. I have the same problem with Handbrake. I've written to the FDK site, this is the

[FFmpeg-user] 2 pass encoding with hevc_nvenc

for the bad english. Thanks for your attention. -- Marco Diletti <m.dile...@yahoo.com> ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmp

[FFmpeg-user] Configure error with Android NDK clang compiler

tzvzd15tnfvp4g5847x2dmgn/Tffconf.Ct6YZsBn.o /var/folders/zn/45tzvzd15tnfvp4g5847x2dmgn/Tffconf.a7i3f9zc.S /var/folders/zn/45tzvzd15tnfvp4g5847x2dmgn/Tffconf.a7i3f9zc.S:1:1: error: unknown directive .altmacro GNU assembler not found, install/update gas-preprocessor The weird thing is that *if I create a file containing .altmacro and run the same exact command it actually works*. For example: $ echo ".altmacro" > test.as $ /tmp/toolchain/bin/arm-linux-androideabi-clang --sysroot=/tmp/toolchain/sysroot -isysroot /tmp/toolchain/sysroot -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dstrtod=avpriv_strtod -DPIC -I/sysroot/usr/include -ffast-math -funroll-loops -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -march=armv7-a -fPIC -c -o /tmp/test.o test.as $ echo $? 0 After digging for an hour in the configure script I can't actually realize why it fails. Do you have any hint? Thank you, Marco ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

Re: [FFmpeg-user] Configure error with Android NDK clang compiler

issue related to the configure script. > Note that since compilation does not succeed for all files, I > suggest you use gcc for the time being. I manually patched the configure script to bypass "check_as" and I also realized the compilation fails. That's the next thing I will deeply

[FFmpeg-user] rtsp_option issue

uot;rtmp://localhost:1935/live/132646"* All works well!!! Why if I specify the rtsp_transport works well and why in the first case doesn't work? Thanks, Marco ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

[FFmpeg-user] h264 lossless grayscale

rawvideo -c:v rawvideo -pix_fmt gray16le -y out16_decoded.yuv the resulting files are not identical. Any explanation for this behavior? Am I doing something wrong? Best regards, --Marco D:\Users\Porsch\Develop\LoggingApp\tools\build\vs12\dl4log_muxd:\Tools\ffmpeg-20150109-git-d1c6b7b-win32-shared

Re: [FFmpeg-user] Continuation problem after video concatenation

TAG:language=und [/STREAM] Cheers, Marco ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

Re: [FFmpeg-user] Continuation problem after video concatenation

Am 20.08.2014 05:49, schrieb Qianliang Zhang: You must scale to the same size before you concat Yes, I know. The videos have the same resolution before concatenation. Marco ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org

Re: [FFmpeg-user] Continuation problem after video concatenation

, Marco ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user