ChanServ changed the topic of #ffmpeg to: Welcome to the FFmpeg USER support channel | Development channel: #ffmpeg-devel | Bug reports: https://ffmpeg.org/bugreports.html | Wiki: https://trac.ffmpeg.org/ | This channel is publically logged | FFmpeg 7.1.1 is released
emanuele6 has quit [Quit: WeeChat 4.5.2]
emanuele6 has joined #ffmpeg
blb has quit [Quit: brb]
relue has quit [Read error: Connection reset by peer]
blb has joined #ffmpeg
Guest10 has joined #ffmpeg
Guest10 has quit [Client Quit]
Guest10 has joined #ffmpeg
Guest10 has quit [Client Quit]
System_Error has quit [Ping timeout: 264 seconds]
Guest10 has joined #ffmpeg
Guest10 has quit [Client Quit]
Arokh has joined #ffmpeg
Arokh has quit [Ping timeout: 245 seconds]
jtgd has quit [Quit: WeeChat 4.6.2]
jtgd has joined #ffmpeg
Fiji has quit [Ping timeout: 244 seconds]
Arokh has joined #ffmpeg
System_Error has joined #ffmpeg
Guest10 has joined #ffmpeg
fling has quit [Ping timeout: 264 seconds]
<Guest10>
Hello, I am trying to encode 3rd Order Ambisonic Wav file to an IAMF file using FFmpeg. It works fine using Opus codec, but when using PCM, I can’t decode the created .iamf file. Any ideas why this is the case?
<Guest10>
Using a webdemo decoder introduced here.
System_Error has quit [Remote host closed the connection]
System_Error has joined #ffmpeg
halloy5771 has joined #ffmpeg
Guest10 has quit [Ping timeout: 240 seconds]
nrg has quit [Ping timeout: 260 seconds]
nrg has joined #ffmpeg
jmcantrell has quit [Ping timeout: 248 seconds]
Guest10 has joined #ffmpeg
manwithluck has quit [Ping timeout: 276 seconds]
manwithluck has joined #ffmpeg
yans has quit [Ping timeout: 245 seconds]
kasper93_ has joined #ffmpeg
kasper93 is now known as Guest9276
Guest9276 has quit [Killed (osmium.libera.chat (Nickname regained by services))]
kasper93_ is now known as kasper93
kasper93_ has joined #ffmpeg
kasper93 is now known as Guest3959
Guest3959 has quit [Killed (copper.libera.chat (Nickname regained by services))]
kasper93_ is now known as kasper93
Guest10 has quit [Quit: Client closed]
Guest10 has joined #ffmpeg
Guest10 has quit [Quit: Client closed]
ZLima12 has quit []
tm512` is now known as tm512
Guest10 has joined #ffmpeg
Guest10 has quit [Client Quit]
kasper93_ has joined #ffmpeg
kasper93 has quit [Killed (tungsten.libera.chat (Nickname regained by services))]
kasper93_ is now known as kasper93
System_Error has quit [Remote host closed the connection]
ZLima12 has joined #ffmpeg
jarthur has quit [Quit: jarthur]
cantelope has quit [Quit: Connection closed for inactivity]
user_oreloznog has joined #ffmpeg
kasper93_ has joined #ffmpeg
kasper93 has quit [Killed (mercury.libera.chat (Nickname regained by services))]
kasper93_ is now known as kasper93
kasper93_ has joined #ffmpeg
kasper93 is now known as Guest4848
Guest4848 has quit [Killed (tungsten.libera.chat (Nickname regained by services))]
kasper93_ is now known as kasper93
damian101_ has quit [Remote host closed the connection]
Guest10 has joined #ffmpeg
Guest10 has quit [Ping timeout: 240 seconds]
WaKaN has quit [Quit: WaKaN]
WaKaN42 has quit [Quit: WaKaN42]
JanC has quit [Killed (zinc.libera.chat (Nickname regained by services))]
JanC has joined #ffmpeg
tykling has joined #ffmpeg
tykling has quit [Client Quit]
futurion has joined #ffmpeg
tykling has joined #ffmpeg
emmanuelux has quit [Read error: Connection reset by peer]
JanC is now known as Guest3050
Guest3050 has quit [Killed (platinum.libera.chat (Nickname regained by services))]
JanC has joined #ffmpeg
tykling has quit [Quit: leaving]
jrofd has joined #ffmpeg
tykling has joined #ffmpeg
lavaball has joined #ffmpeg
Guest52 has joined #ffmpeg
<Guest52>
I'm currently working on a real-time streaming project where I combine up to 16 individual RTSP camera streams into a single tiled video stream using FFmpeg, and stream this combined video to a web-based UI through the MediaSoup media server (WebRTC).
<Guest52>
Current Scenario:
<Guest52>
To test the workflow, I initially set up 3 RTSP camera streams, and I'm using the following FFmpeg command to tile the video:
<Guest52>
The combined video stream is successfully tiled and streamed without significant overall latency.
<Guest52>
However, among the tiled streams, one stream remains live and current without delay, but the other two streams have approximately a 2-second delay.
<Guest52>
Individually checking each camera stream separately (via VLC), I confirmed they all have minimal latency (~200ms). The delay is only observed when combining them through FFmpeg.
<Guest52>
Steps Already Taken:
<Guest52>
Tried setting -fflags +nobuffer -flags low_delay on input and output.
<Guest52>
Used -preset veryfast -tune zerolatency.
<Guest52>
Adjusted various values for -thread_queue_size .
<Guest52>
Despite these attempts, the delay remains.
<Guest52>
My goal:
<Guest52>
I need to have all tiled streams consistently live without the noticeable delay, especially as I scale up to 16 simultaneous camera streams.
SuicideShow has quit [Ping timeout: 265 seconds]
SuicideShow has joined #ffmpeg
Blacker47 has joined #ffmpeg
<futurion>
Guest52 I don't know how to solve your latency issue, but I'm wondering what happens if one stream dies/drops or goes offline for a while.... does the tiled mosaic tehn still work with only two streams and when the third comes back online it just appears there as nothing happened, or do you have to restart the whole ffmpeg cmd to reinitialize all
<futurion>
streams?
JanC has quit [Killed (copper.libera.chat (Nickname regained by services))]
JanC has joined #ffmpeg
<futurion>
I'm asking this because I had issues with ffmpeg's UDP mpegts streams tiled into mosaic and I had to restart the whole command occasionally, otherwise some streams wouldn't come back online
citizendot has joined #ffmpeg
<citizendot>
how to build ffmpeg statically?
<citizendot>
i tried with --enable-static flag, but i keep getting dynamically linked binary
<futurion>
us media-autobuild-suite... there you have an option to select full-plus (shared binaries) or just full or mimic-zeranoe where these shared binaries aren't used
xx has joined #ffmpeg
<furq>
citizendot: --extra-ldflags="-static"
<furq>
--enable-static just links the ffmpeg libs statically, not any external libs
<furq>
or you can use BtbN's build scripts or similar
halloy5771 has quit [Read error: Connection reset by peer]
technonerd has quit [Ping timeout: 264 seconds]
xx has quit [Ping timeout: 264 seconds]
xx has joined #ffmpeg
dkh has quit [Ping timeout: 244 seconds]
dkh has joined #ffmpeg
Sketch has quit [Remote host closed the connection]
Sketch has joined #ffmpeg
JanC has quit [Killed (tantalum.libera.chat (Nickname regained by services))]
JanC has joined #ffmpeg
<Guest52>
futurion Currently, I am using the ZoneMinder stream API to input video streams. When one of the cameras gets disconnected, the stream on the UI side freezes. However, once the camera is turned back on, the streaming automatically resumes.
Shine_ has joined #ffmpeg
technonerd has joined #ffmpeg
Guest52 has quit [Ping timeout: 240 seconds]
arch1t3cht has quit [Read error: Connection reset by peer]
arch1t3cht1 has joined #ffmpeg
j45_ has joined #ffmpeg
j45 has quit [Ping timeout: 276 seconds]
j45_ is now known as j45
j45 has quit [Changing host]
j45 has joined #ffmpeg
kasper93 has quit [Read error: Connection reset by peer]
\\Mr_C\\ has joined #ffmpeg
kasper93 has joined #ffmpeg
kasper93_ has joined #ffmpeg
kasper93 is now known as Guest4931
kasper93_ is now known as kasper93
kasper93_ has joined #ffmpeg
kasper93 is now known as Guest357
Guest357 has quit [Killed (calcium.libera.chat (Nickname regained by services))]
kasper93_ is now known as kasper93
kasper93_ has joined #ffmpeg
kasper93 is now known as Guest4185
kasper93_ is now known as kasper93
Guest4931 has quit [Ping timeout: 260 seconds]
Guest4185 has quit [Ping timeout: 248 seconds]
lavaball has quit [Remote host closed the connection]
ahc has quit [Ping timeout: 252 seconds]
JanC has quit [Ping timeout: 252 seconds]
JanC has joined #ffmpeg
microlappy has joined #ffmpeg
JanC has quit [Killed (erbium.libera.chat (Nickname regained by services))]
JanC has joined #ffmpeg
minimal has joined #ffmpeg
Guest93 has joined #ffmpeg
\\Mr_C\\ has quit [Remote host closed the connection]
microlappy has quit [Quit: Konversation terminated!]
Guest93 has quit [Quit: Client closed]
lavaball has joined #ffmpeg
citizendot has quit [Ping timeout: 276 seconds]
JanC is now known as Guest1903
Guest1903 has quit [Killed (platinum.libera.chat (Nickname regained by services))]
JanC has joined #ffmpeg
rvalue has quit [Read error: Connection reset by peer]
rvalue has joined #ffmpeg
cantelope has joined #ffmpeg
Xe has quit [Ping timeout: 245 seconds]
Xe has joined #ffmpeg
rsx has joined #ffmpeg
rsx has quit [Quit: rsx]
<vlt>
Hello. How can I find the video codec that will cause the lowest energy consumption when played back on a specific phone model? According to https://www.devicespecifications.com/en/model/d8903566 the phone’s CPU is a "Qualcomm Snapdragon 410 (MSM8916)". Any idea?
<JEEB>
I would expect the ASIC setup is common between all of them if you mean hardware decoding
<furq>
it will almost certainly be h264 on any phone
<furq>
i don't know if benchmarks exist for hardware decoding power consumption but h264 is the simplest codec that is more or less universally hardware decoded on phones
ahmedhamed has joined #ffmpeg
<JEEB>
the ASIC hardware block should kinda be a singular one, so at that point it only depends on the complexity of the bit stream (bit rate, frame rate etc) whether it can keep up or not. but I would be surprised if the power consumption changed
ahmedhamed has left #ffmpeg [#ffmpeg]
<furq>
that page doesn't show support for any other codec anyway
<furq>
the other codecs shown are probably decoded in software
<furq>
actually i guess it does say webm but it doesn't say which codecs
minimal has quit [Quit: Leaving]
damian101 has joined #ffmpeg
alphalpha has quit [Ping timeout: 248 seconds]
alphalpha has joined #ffmpeg
<vlt>
Ok, thank you.
rvalue has quit [Read error: Connection reset by peer]
<GuestGuest>
It would be much appreciated if some expert here could help me with this, I've sitting trying things but don't seem to be any closer
<johnjaye>
it might help to say you're having problem with the mpegts muxer and the error is related to audio frame size.
<johnjaye>
then someone might be more likely to read and answer
<GuestGuest>
I seem to have a problem with mpegts muxer and the error appears to be related to audio frame size
<zeromind>
usually one'd post the full command and output with the error; you mention "av1 + aac codecs", but the error is for mp3, so something's not right
<zeromind>
mp3 with 0 channels even
<GuestGuest>
If I mux with NUT it tells me it's Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 97 kb/s (default)
<johnjaye>
right buut the paste said mp3
<johnjaye>
hence the confusion
<GuestGuest>
I think the error appears after there has been a problem with input udp stream, then it messes up something with timestamps, but the interesting thing is that NUT seems to be able to handle it and playback correctly, while mpegts gives that error and no sound but still plays back the video
<zeromind>
did you ever post full command and out? or what streams the m3u8 actually mentions?
<zeromind>
*output
halloy5771 has quit [Read error: Connection reset by peer]
<GuestGuest>
full command: ffmpeg -loglevel verbose -i https://url/stream.m3u8 -c:v libx264 -tune film -c:a copy -f mpegts pipe:1 | ffplay -
<GuestGuest>
That one doesn't work, and just replace mpegts mux with nut then it works
<zeromind>
okay, not getting anywhere, got other things to do, good luck
<GuestGuest>
Well, thanks for trying...
halloy5771 has joined #ffmpeg
Guest41 has joined #ffmpeg
<Guest41>
I'm trying to compile ffmpeg with the instructions found here: https://developer.nvidia.com/blog/nvidia-ffmpeg-transcoding-guide/ but it looks like it can't see the headers for ffnvcodec I don't know how to fix this command to do that "./configure --enable-cuda --enable-cuvid --enable-nvdec --enable-nvenc --enable-nonfree --enable-libnpp
<johnjaye>
the filter failed so i tried to make them all as similar as possible but couldn't get it to work
kingdomofheaven has quit [Ping timeout: 252 seconds]
<BtbN>
the concat demuxer is incredibly finnicky
<BtbN>
it needs _perfectly_ matching content, ideally with consecutive timestamps and everything
<johnjaye>
i see.
<BtbN>
it's great for stitching back together stuff like segments of an hls playlist or something
<BtbN>
but for combining completely unrelated stuff, it's a pain
<BtbN>
it's possible, but painful, and you often end up with glitches on the seams
<johnjaye>
the problem with the filter is i need a string like [0:v:0][0:a:0][1:v:0][1:a:0][2:v:0][2:a:0]
<johnjaye>
which is unwieldy for 10+ files
<BtbN>
yep, with 100 videos, the filter invocation will be a humongous beast
<Guest41>
Still says "ERROR: ffnvcodec requested but not found"
<BtbN>
Guest41: you did something wrong then. Read the config.log and see what it's missing.
<Guest41>
that file is not helpful. it is way too big and obtuse
<BtbN>
Can always just manually install the latest headers. It's just a few headers and can't break anything to manually make install
<johnjaye>
which avenue should i pursue then? the demuxer,protocol, or filter?
<BtbN>
The protocol is literally just cat 1.mp4 2.mp4 3.mp3 .... | ffmpeg -i - ...
damian101 has quit [Ping timeout: 245 seconds]
<BtbN>
that obviously does not work
<johnjaye>
i see
<BtbN>
the filter is the only realistic option to concat unrelated files
<BtbN>
The humongous chain of inputs and [0:v:0][0:a:0][1:v:0][1:a:0][2:v:0][2:a:0]... can be quite easily shell-scripted
<johnjaye>
can i try the original idea an rencode them to be similar enough?
<johnjaye>
i couldn't get it to work
<BtbN>
You can, but it's an absolute pain
<BtbN>
The files need to match perfectly in every codec related parameter
<BtbN>
and even then, audio frames will likely not align, so you'll end up with hitches on the seams
<johnjaye>
hmm. what if i convert them all to wav 44k 1ch or something
<johnjaye>
i.e. some super simple format
<Guest41>
"apt-get install libffmpeg-nvenc" did not help
<BtbN>
that's not the package I linked
<BtbN>
for i in $(seq 100); do printf '[%d:v:0][%d:a:0]' $i $i; done
<BtbN>
printf '-i %s ' *.mp4
<BtbN>
should make it easy to generate a concat invocation even for rather ridiculous amounts of files
<Guest41>
"apt-get install libffmpeg-nvenc-dev" I already tried. did not help
<BtbN>
the seq invocation is missing an initial 0, it starts late
<johnjaye>
thanks i'll try that. i was worried about limits on command line length
<BtbN>
Isn't the limit several megabytes these days?
<BtbN>
Except for on Windows
<BtbN>
Guest41: no idea then, install them manually, ask your distro on how to install it. If you're sure they're correctly installed, read the config.log to find out what's wrong.
halloy5771 has joined #ffmpeg
<johnjaye>
google tells me 100kb to 2MB possibly
<Guest41>
config.log is not telling me anything helpful. it's way too big and I have no idea what to search for
<BtbN>
the error will be the last thing it did before aborting
ssh07324 has joined #ffmpeg
ssh0732 has quit [Remote host closed the connection]
ssh07324 is now known as ssh0732
manwithluck has quit [Ping timeout: 248 seconds]
manwithluck has joined #ffmpeg
kingdomofheaven has joined #ffmpeg
<Guest41>
"ar rcD /tmp/ffconf.wFSqbKDQ/test.a @/dev/null" is the second to last line