[FFmpeg-user] combining audio and video
Is it possible to have two urls, one streaming audio and one for video; using ffmpeg to combine these streams and just playing them as one without saving a file? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] ffplay/ ffmpeg audio channels
I have an issue, I have basic asoundrc that looks like the one below.
When I play a 5.1 audio file in ffplay I see an error;
SDL_OpenAudio (6 Channels, 48000 Hz): ALSA: Couldn't open audio device: No
such file or directory
SDL_OpenAudio (4 Channels, 48000 Hz): ALSA: Couldn't open audio device: No
such file or directory
Then the audio is of course very low. I did a series of tests and the
hardware device 0,7 is the only one that will play audio.
Is there any way that I can force ffmpeg/ ffplay to use this device? Or any
other recommendations?
pcm.!default {
type plug
slave.pcm "mixer"
}
ctl.!default {
type hw
card 0
}
pcm.mixer {
type dmix
ipc_key 1024
slave {
pcm "hw:0,7"
period_size 1024
buffer_size 4096
rate 44800
format S32_LE
}
}
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Re: [FFmpeg-user] (no subject)
adding realtime before the crop filter dropped the bitrate and increased the encoding speed to 80x i moved the realtime t filter after hwdownload, but the speed was still about 1.78 I looked over the filter documentation: https://ffmpeg.org/ffmpeg-filters.html#realtime_002c-arealtime and noticed there's a speed or limit options; adding realtime=speed=1.04 keeps the speed at 1.04 and the problem is resolved. Thanks for the help! On Tue, Jan 26, 2021 at 4:47 PM Dennis Mungai wrote: > On Tue, 26 Jan 2021, 03:14 owen s, wrote: > > > I am running this command > > > > ffmpeg-git -y \ > > -vaapi_device /dev/dri/renderD128 \ > > -framerate 60 -i ./image.jpg \ > > -stream_loop -1 -i ./audio.mp3 \ > > -map 0:v \ > > -c:v h264_vaapi \ > > -vf > > > > > 'crop=2560:1440:0:0,format=nv12|vaapi,hwupload,loop=loop=-1:size=1:start=0,hwdownload,format=yuv420p' > > \ > > -rc_mode 2 -b:v 20M \ > > -c:v libx264 \ > > -map 1:a \ > > -c:a libfdk_aac -b:a 128k -ar 44100 -ac 2 \ > > -af "dynaudnorm=f=150:g=15" \ > > -f flv /dev/null > > > > the encoding speed is very fast, typically 1.78x > > > > frame=2512127 fps=107 q=0.0 size=56457493kB time=11:37:47.36 > > bitrate=11046.8kbits/s speed=1.79x > > > > Is there any way to limit this speed to a standard 1x? > > ___ > > > > > Add the realtime filter to your filter chain, right before crop. So you'd > have -vf "realtime,crop..." etc > > > > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] (no subject)
I think it's the encoding speed that's causing the problem. Typically, encoding faster than real time would be a good problem to have but in this situation, when I stream this fast, it fills up the streaming platform buffer after some point the streaming platform gets too far behind and cuts the stream. This is why I would like to limit the speed to something closer to 1x. On Tue, Jan 26, 2021 at 9:48 AM Mark Filipak (ffmpeg) wrote: > On 01/25/2021 07:09 PM, owen s wrote: > > I am running this command > > > > ffmpeg-git -y \ > > -vaapi_device /dev/dri/renderD128 \ > > -framerate 60 -i ./image.jpg \ > > -stream_loop -1 -i ./audio.mp3 \ > > -map 0:v \ > > -c:v h264_vaapi \ > > -vf > > > 'crop=2560:1440:0:0,format=nv12|vaapi,hwupload,loop=loop=-1:size=1:start=0,hwdownload,format=yuv420p' > > \ > > -rc_mode 2 -b:v 20M \ > > -c:v libx264 \ > > -map 1:a \ > > -c:a libfdk_aac -b:a 128k -ar 44100 -ac 2 \ > > -af "dynaudnorm=f=150:g=15" \ > > -f flv /dev/null > > > > the encoding speed is very fast, typically 1.78x > > > > frame=2512127 fps=107 q=0.0 size=56457493kB time=11:37:47.36 > > bitrate=11046.8kbits/s speed=1.79x > > > > Is there any way to limit this speed to a standard 1x? > > With no guide to report formats you are understandably misinterpreting > what ffmpeg is trying to tell > you. > The "speed=1.79x" means that the encoder time was 1.79x the running time. > In other words, it took > less time to encode than to play the video. To see the video's playback > speed, look for lines that > look like this: > Output #0, matroska, to ...: >Metadata: > encoder : Lavf58.65.100 > Stream #0:0, 0, 1/1000: Video: hevc, yuv420p(tv, progressive), > 720x240 [SAR 8:9 DAR 8:3], > q=2-31, 59.94 fps, 1k tbn > > > -- > Someone's sneaking in and turning up the range so that my food burns. > I'm sure of it. > And the older I get, the more sure of it I become. > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] (no subject)
I am running this command ffmpeg-git -y \ -vaapi_device /dev/dri/renderD128 \ -framerate 60 -i ./image.jpg \ -stream_loop -1 -i ./audio.mp3 \ -map 0:v \ -c:v h264_vaapi \ -vf 'crop=2560:1440:0:0,format=nv12|vaapi,hwupload,loop=loop=-1:size=1:start=0,hwdownload,format=yuv420p' \ -rc_mode 2 -b:v 20M \ -c:v libx264 \ -map 1:a \ -c:a libfdk_aac -b:a 128k -ar 44100 -ac 2 \ -af "dynaudnorm=f=150:g=15" \ -f flv /dev/null the encoding speed is very fast, typically 1.78x frame=2512127 fps=107 q=0.0 size=56457493kB time=11:37:47.36 bitrate=11046.8kbits/s speed=1.79x Is there any way to limit this speed to a standard 1x? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] vaapi_h264 encoding very low bitrate
Hi Mark, You're correct in that increasing the framerate for the image input increases the bitrate. You also suggested lowering the gop, but that would cause issues if I am trying to stream at these settings since the gop needs to be 2* framerate. there's no way to have higher framerate w/ an input image is there? On Wed, Jan 20, 2021 at 9:08 PM Mark Thompson wrote: > On 19/01/2021 16:07, owen s wrote: > > I am running this command with > > ffmpeg -y -loglevel debug \ > > -vaapi_device /dev/dri/renderD128 \ > > -loop 1 -r 1 -i ./image.jpg -pix_fmt vaapi_vld \ > > -b:v 18000k -minrate 18000k \ > > -vf 'format=nv12|vaapi,hwupload,scale_vaapi=w=1280:h=720' \ > > -rc_mode 3 \ > > -r 30 -g 60 \ > > -c:v h264_vaapi -f flv /dev/null > > > > I am getting high encoding speed of greater than 3x but the bitrate is > > terrible 350Kbits/s > > > > Why is that when I can get better encoding speeds using cpu? log file > > http://0x0.st/-i2j.txt > > Given that you're encoding the same image repeatedly, most of the frames > will be a trivial "this frame is the same as the previous one" which can be > signalled with very few bits. > > If you want to push the bitrate up then either don't use the same frame > repeatedly as input or decrease the gop size (-g option) so that it is > forced to intra-code more frames (I would guess that at -g 1 it will > probably be able to hit the 18M target). > > - Mark > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] vaapi crop and video size filters
Mak thanks again, you are correct; what I needed to do was to crop the image before uploading it. I didn't realize that I could change the order of the commands in the video filter strings. Thanks again! On Wed, Jan 20, 2021 at 9:42 PM Mark Thompson wrote: > On 20/01/2021 03:06, owen s wrote: > > with software libx264 using crop filter > > crop=width:heigh:x:y, i could crop around a specific point. using > > h264_vaapi and -vf crop=width:height > > doesn't control the crop location. > > > > also with libx264 -video_size=widthxheight worked, but with h264_vaapi, > the > > video resolution comes out to be the max size of the video framebuffer > > 65535x65535 in my case. > > > > Can I set where the h264_vaapi crop x,y position and how do I control the > > resolution after using h264_vaapi? > > > > log file: http://0x0.st/-ifF.txt > > This crops your 2560x1440 input to 2560x1440 so it is unsurprising that > nothing happens. > > More generally, cropping is supported by VAAPI filters but not by the > encoder (due to internal API constraints which probably derive from actual > hardware constraints). > > Therefore, you should crop either before upload (if you are uploading) or > before applying a filter (when staying in VAAPI surfaces). If you aren't > filtering at all (pure decode->encode), then you need to insert a null > scale before the encode (which is an extra copy, but can't be avoided when > the encoder doesn't support that input). > > So: > > ffmpeg -i ... -vf crop=...,format=nv12,hwupload -c:v h264_vaapi ... > > ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi -i ... -vf > crop=...,scale_vaapi=... -c:v h264_vaapi ... > > - Mark > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] vaapi crop and video size filters
with software libx264 using crop filter crop=width:heigh:x:y, i could crop around a specific point. using h264_vaapi and -vf crop=width:height doesn't control the crop location. also with libx264 -video_size=widthxheight worked, but with h264_vaapi, the video resolution comes out to be the max size of the video framebuffer 65535x65535 in my case. Can I set where the h264_vaapi crop x,y position and how do I control the resolution after using h264_vaapi? log file: http://0x0.st/-ifF.txt ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] vaapi_h264 encoding very low bitrate
I am running this command with ffmpeg -y -loglevel debug \ -vaapi_device /dev/dri/renderD128 \ -loop 1 -r 1 -i ./image.jpg -pix_fmt vaapi_vld \ -b:v 18000k -minrate 18000k \ -vf 'format=nv12|vaapi,hwupload,scale_vaapi=w=1280:h=720' \ -rc_mode 3 \ -r 30 -g 60 \ -c:v h264_vaapi -f flv /dev/null I am getting high encoding speed of greater than 3x but the bitrate is terrible 350Kbits/s Why is that when I can get better encoding speeds using cpu? log file http://0x0.st/-i2j.txt ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg with vulkan and or opencl
Hi Carl
I built ffmpeg from git:
https://gist.github.com/teamblubee/21937f6b606c6577f8c2a40da76d64e5
here's the output from ffmpeg:
ffmpeg version N-100671-gc48110a4a4 Copyright (c) 2000-2021 the FFmpeg
developers
built with gcc 10 (Ubuntu 10.2.0-13ubuntu1)
configuration: --prefix=/home/bb/Dev/ffmpeg_build/build
--extra-cflags='-I/home/bb/Dev/ffmpeg_build/build/include -I/usr/include'
--extra-ldflags='-L/home/bb/Dev/ffmpeg_build/build/lib
-L/home/bb/Dev/ffmpeg_build/build/lib/x86_64-linux-gnu
-Wl,-rpath=/home/bb/Dev/ffmpeg_build/build/lib/x86_64-linux-gnu -ldrm
-L/usr/lib' --pkg-config-flags=--static --extra-libs='-lpthread -lm'
--bindir=/home/bb/Dev/ffmpeg_build/bin --arch=amd64 --disable-shared
--disable-ffprobe --disable-ffplay --disable-gnutls --enable-openssl
--enable-zlib --enable-librtmp --enable-static --enable-chromaprint
--enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype
--enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx
--enable-libx264 --enable-libx265 --enable-nonfree --enable-vdpau
--enable-ladspa --enable-libaom --enable-libbs2b --enable-libcaca
--enable-libcodec2 --enable-libdav1d --enable-libfontconfig
--enable-libfribidi --enable-libgme --enable-libopenjpeg --enable-librsvg
--enable-librubberband --enable-libshine --enable-libsnappy
--enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh
--enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libwebp
--enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi
--enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl
--enable-sdl2 --enable-pocketsphinx --enable-libdc1394 --enable-libdrm
--enable-libiec61883 --enable-libass --enable-libfreetype --enable-libgsm
--enable-libmp3lame --enable-libmysofa --enable-libopenjpeg
--enable-libopenmpt --enable-libopus --enable-librabbitmq
--enable-libvorbis --enable-libvpx --enable-libflite --enable-chromaprint
--enable-frei0r
libavutil 56. 63.101 / 56. 63.101
libavcodec 58.117.101 / 58.117.101
libavformat58. 65.101 / 58. 65.101
libavdevice58. 11.103 / 58. 11.103
libavfilter 7. 96.100 / 7. 96.100
libswscale 5. 8.100 / 5. 8.100
libswresample 3. 8.100 / 3. 8.100
libpostproc55. 8.100 / 55. 8.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options]
outfile}...
Use -h to get full help or, even better, run 'man ffmpeg'
ffmpeg-git -hide_banner -hwaccels
Hardware acceleration methods:
vdpau
vaapi
drm
opencl
trying to run this command
ffmpeg-git -y \
-loglevel debug \
-hwaccel vaapi -hwaccel_device /dev/dri/renderD128 \
-loop 1 -r 4.8 -i ./image.jpg \
-stream_loop -1 -i ./audio.mp3 \
-c:v h264_vaapi -pix_fmt vaapi_vld \
-b:a 128k -ar 44100 -ac 2 -acodec aac \
-r 30 -g 60 \
-f flv /dev/null
I get this error: http://0x0.st/-i1t.txt
How can I actually use any of these hardware accelerated options?
On Mon, Jan 18, 2021 at 5:34 AM Carl Eugen Hoyos wrote:
> Am Sa., 16. Jan. 2021 um 19:13 Uhr schrieb owen s :
> >
> > I have installed opencl and vulkan drivers on linux: Linux
> > 5.8.0-7630-generic #32~1609193707~20.10~781bb80-Ubuntu SMP Tue Jan 5
> > 21:29:56 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
> >
> > I am using ffmpeg version:
> > ffmpeg version 4.3.1-4ubuntu1 Copyright (c) 2000-2020 the FFmpeg
> developers
> > built with gcc 10 (Ubuntu 10.2.0-9ubuntu2)
>
> Please test current FFmpeg git head before asking questions here.
>
> > I am running this ffmpeg command
> > ffmpeg -y -hwaccel any \
> > -loop 1 -framerate 30 -re \
> > -hwaccel dxva2 \
>
> I may misunderstand your question but there is no dxva2 on Linux.
>
> > -i ./1280x720.jpg \
> > -stream_loop -1 -re \
> > -i ./audio.mp3 \
> > -vcodec libx264 -pix_fmt yuv420p \
> > -b:v 2500k -maxrate 2500k -bufsize 1k \
> > -preset slow -tune stillimage \
> > -b:a 128k -ar 44100 -ac 2 -acodec aac \
> > -af "dynaudnorm=f=150:g=15" \
> > -g 60 \
> > -f flv tmp.flv
>
> Carl Eugen
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[FFmpeg-user] ffmpeg with vulkan and or opencl
I have installed opencl and vulkan drivers on linux: Linux 5.8.0-7630-generic #32~1609193707~20.10~781bb80-Ubuntu SMP Tue Jan 5 21:29:56 UTC 2 x86_64 x86_64 x86_64 GNU/Linux I am using ffmpeg version: ffmpeg version 4.3.1-4ubuntu1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 10 (Ubuntu 10.2.0-9ubuntu2) I am running this ffmpeg command ffmpeg -y -hwaccel any \ -loop 1 -framerate 30 -re \ -hwaccel dxva2 \ -i ./1280x720.jpg \ -stream_loop -1 -re \ -i ./audio.mp3 \ -vcodec libx264 -pix_fmt yuv420p \ -b:v 2500k -maxrate 2500k -bufsize 1k \ -preset slow -tune stillimage \ -b:a 128k -ar 44100 -ac 2 -acodec aac \ -af "dynaudnorm=f=150:g=15" \ -g 60 \ -f flv tmp.flv This is the output error: ffmpeg version 4.3.1-4ubuntu1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 10 (Ubuntu 10.2.0-9ubuntu2) configuration: --prefix=/usr --extra-version=4ubuntu1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared libavutil 56. 51.100 / 56. 51.100 libavcodec 58. 91.100 / 58. 91.100 libavformat58. 45.100 / 58. 45.100 libavdevice58. 10.100 / 58. 10.100 libavfilter 7. 85.100 / 7. 85.100 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 7.100 / 5. 7.100 libswresample 3. 7.100 / 3. 7.100 libpostproc55. 7.100 / 55. 7.100 Multiple -hwaccel options specified for stream 0, only the last option '-hwaccel dxva2' will be used. Input #0, image2, from './1280x720.jpg': Duration: 00:00:00.03, start: 0.00, bitrate: 46423 kb/s Stream #0:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 72:72 DAR 16:9], 30 fps, 30 tbr, 30 tbn, 30 tbc Input #1, mp3, from './audio.mp3': Duration: 00:49:57.42, start: 0.025057, bitrate: 128 kb/s Stream #1:0: Audio: mp3, 44100 Hz, stereo, fltp, 128 kb/s Metadata: encoder : LAME3.99r Side data: replaygain: track gain - 13.00, track peak - unknown, album gain - unknown, album peak - unknown, Device creation failed: -12. [mjpeg @ 0x56112782f480] No device available for decoder: device type dxva2 needed for codec mjpeg. Stream mapping: Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264)) Stream #1:0 -> #0:1 (mp3 (mp3float) -> aac (native)) Device setup failed for decoder on input stream #0:0 : Cannot allocate memory I cannot get ffmpeg to work, do I need to build a special version? the wiki page: https://trac.ffmpeg.org/wiki/HWAccelIntro doesn't provide very detailed info. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] ffmpeg rtmp stream breaks after Delay between the first packet and last packet
I'll update this question ffmpeg -version ```shell ffmpeg -version ffmpeg version 4.3.1-4ubuntu1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 10 (Ubuntu 10.2.0-9ubuntu2) ``` I run this command to use ffmpeg to stream to youtube ; ```shell ffmpeg -y -threads 12 \ -loop 1 -framerate 30 -re \ -i ./1280x720.jpg \ -i ./audio.mp3 \ -video_size 1280x720 \ -vcodec libx264 -pix_fmt yuv420p \ -b:v 4500k -maxrate 5500k -bufsize 22000k \ -preset ultrafast -crf 23 -tune stillimage \ -b:a 128k -ar 44100 -ac 2 -acodec aac \ -filter_complex "dynaudnorm=f=150:g=15" \ -r 30 -g 60 \ -f flv rtmp://a.rtmp.youtube.com/live2/ 2>&1 | tee _LOG ``` The stream is excellent for 45-53 minutes then i'll get an error like this from ffmpeg: ```shell [flv @ 0x56077027cd80] Delay between the first packet and last packet in the muxing queue is 10034000 > 1000: forcing output ``` then youtube starts to say, no data being received and the stream will end, which it does. This is the full log: http://0x0.st/-zUH.txt ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] ffmpeg streaming to youtube "Delay between the first packet and last packet in the muxing queue is 10500000 > 10000000: forcing output"
This is a large log file: https://0x0.st/-zyL.txt starting up a youtube livestream with this ffmpeg command: ffmpeg -hwaccel auto -threads 8 -re -loop 1 -framerate 2 -i ./image.jpg \ -i ./audio.mp3 \ -video_size 1920x1080 \ -threads 4 -vcodec libx264 -pix_fmt yuv420p \ -tune zerolatency \ -movflags +faststart \ -use_wallclock_as_timestamps 1 \ -fflags +genpts \ -x264opts opencl \ -preset ultrafast -crf 18 \ -b:v 1500k \ -bufsize 1k \ -b:a 128k -ar 44100 -ac 2 -acodec aac \ -r 30 -g 1 -strict experimental \ -f flv rtmp://a.rtmp.youtube.com/live2/ The YouTube stream starts off with excellent quality but after some time the YouTube widget starts to show the buffering circle, I get this warning in the ffmpeg log: "Delay between the first packet and last packet in the muxing queue is 1050 > 1000: forcing output" ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
