чт, 4 июл. 2024 г., 02:39 Mark Filipak :
> H.264 appears to have made I- P- & B-frames obsolete.
>
> Everyone's probably seen my DTS-PTS diagrams.
>
> Closed GOP
> PTS order I B B P B B P..
> / __/ __/
> / //
> DTS order I P B B P B
чт, 27 июн. 2024 г., 23:39 Mark Filipak :
> Hello All,
>
> I'm considering buying professional video software to evaluate and analyze
> FFmpeg trims and splices
> and for troubleshooting. My objective is to improve my edits, and to
> improve FFmpeg. I'm retired, I
> have plenty of time, I have
чт, 20 июн. 2024 г., 10:17 Reindl Harald :
>
>
> Am 20.06.24 um 01:23 schrieb Bouke / edit 'B:
> > Well, why don’t you seek some professional help and get some drugs for
> your anger problems?
>
I think it must be noted that having mental problems is not something ppl
just do voluntary. So,
пт, 24 мая 2024 г., 20:16 Mark Filipak :
> This is from H.262.
> ___
> | |
> | field_sequence – A 3-bit integer which defines the number of the |
> | field in the
пт, 24 мая 2024 г., 12:07 Scott Lutz :
> I have been trying for a couple of days to leverage the h264_videotoolbox
> hardware acceleration capabilities of ffmpeg on dual AMD FirePro D500s of
> my Mac Pro 6,1, but without success.
Does hw acceleration working anywhere in macos?
google put this
пт, 24 мая 2024 г., 01:37 Reindl Harald :
>
>
> Am 24.05.24 um 00:34 schrieb Zathras Yes:
> > Yes, I know that. Just add a picture and it's fine.
>
> MOV with PCM/WAV is never fine
>
from compatibility with older software? yes. Youtube probably does not want
to serve relatively huge lossless
пт, 24 мая 2024 г., 01:00 Reindl Harald :
>
>
> Am 23.05.24 um 23:44 schrieb Zathras Yes:
> > And yes, a conversion of the soundfiles is not wanted, exactly.
> >
> > In a picky manner of speaking, it is a conversion of one file to another,
> > but let''s not go into this nitpicking here.
>
>
пт, 17 мая 2024 г., 20:02 Reindl Harald :
>
>
> Am 17.05.24 um 17:58 schrieb Biswapriyo Nath:
> >> what about trying the latest version instead 6.1.1 from last year when
> >> you use a compiler even newer than on Fedora 39?
> >
> > The same issue was reported with 7.0 release
> >
пт, 15 мар. 2024 г., 11:37 Mice Tecumseh via ffmpeg-user <
ffmpeg-user@ffmpeg.org>:
> Hello;
>
> I stream stereo FLAC from Ubuntu 22.04 with command:
>
> ffmpeg -f pulse -i "remote.monitor" -acodec pcm_s16le -ar 48000 -f s16le
> -ac 2 "udp://192.168.1.99:18181"
> and play this stereo stream
вт, 20 февр. 2024 г., 05:02 amindfv--- via ffmpeg-user <
ffmpeg-user@ffmpeg.org>:
> On Mon, Feb 19, 2024 at 08:49:14PM +0100, Paul B Mahol wrote:
>
> > Best to create minimal reproducible usecase with all required files to
> reproduce it
>
> By the way, this isn't just for reporting on Trac. For
On Thu, Feb 15, 2024 at 12:00 PM Ferdi Scholten wrote:
>
> чт, 15 февр. 2024 г., 11:00 Andrew Randrianasulu :
> >>
> >> чт, 15 февр. 2024 г., 10:39 Ferdi Scholten:
> >>
> >>> The AMR audio format is not specified as a valid audio format for the
>
чт, 15 февр. 2024 г., 11:00 Andrew Randrianasulu :
>
>
> чт, 15 февр. 2024 г., 10:39 Ferdi Scholten :
>
>> The AMR audio format is not specified as a valid audio format for the
>> mp4 container (see *ISO
>> <
>> https://en.wikipedia.org/wiki/Internationa
чт, 15 февр. 2024 г., 10:39 Ferdi Scholten :
> The AMR audio format is not specified as a valid audio format for the
> mp4 container (see *ISO
> <
> https://en.wikipedia.org/wiki/International_Organization_for_Standardization>/IEC
>
>
I managed to make video with amr_nb codec in openCamera (android 11)
mediainfo /dev/shm/VID_20240215_064913.mp4
General
Complete name: /dev/shm/VID_20240215_064913.mp4
Format : MPEG-4
Format profile :
I was looking into https://trac.ffmpeg.org/ticket/1258#comment:12
(mpeg2 multichannel audio in HDV) and reading documents linked in
this ticket.
I still have very vague understanding on where ffmpeg audio (PES?)
headers read by ffmpeg
somewhere in ffmpeg/libavformat/mpeg.c ?
According to this
On Sun, Jan 21, 2024 at 2:47 PM Paul B Mahol wrote:
>
> /* no traces of 44100 and 32000Hz in any commercial software or player */
well, but mpv (and vlc?) supports it
>
> On Sun, Jan 21, 2024 at 3:44 AM Andrew Randrianasulu <
> randrianas...@gmail.com> wrote:
>
>
0438f90d10ef7f5162d6b7221a02ad240c1e99dd Mon Sep 17 00:00:00 2001
From: Andrew Randrianasulu
Date: Sun, 21 Jan 2024 06:10:32 +0300
Subject: [PATCH] Add 32/44.1 khz sampling frequencies to pcm-dvd encoder
Signed-off-by: Andrew Randrianasulu
---
libavcodec/pcm-dvdenc.c | 8 +++-
1 file changed
According to this source (vlc) lpcm dvd audio supports lower frequencies
like 44100/32000 hz - useful for direct dv transcoding for example
https://github.com/videolan/vlc/blob/master/modules/codec/lpcm.c
see lines 524, 608
Does this mean that libavcodec/pcm-dvdenc.c can be trivially
On Sun, Jan 14, 2024 at 8:24 AM Mark Filipak wrote:
>
> This is not the way to do things, Andrew.
>
> Please do not add your notice of a trac ticket submission to my reply. It has
> nothing to do with my
> reply.
>
> Your ticket has justifiably been closed.
>
> Tr
вс, 14 янв. 2024 г., 06:51 Mark Filipak :
> On 13/01/2024 22.11, Andrew Randrianasulu wrote:
> -snip-
> > I added ticket about ffprobe/vf_showinfo displaying truncated duration:
> >
> > https://trac.ffmpeg.org/ticket/10799#ticket
>
> Andrew, please remov
On Sat, Jan 13, 2024 at 10:27 PM Mark Filipak
wrote:
>
> On 13/01/2024 12.50, Andrew Randrianasulu wrote:
> > On Sat, Jan 13, 2024 at 8:57 PM Def Etienne wrote:
> -snip-
> >> ffmpeg -i ~/6029.mp4 -copyts c:v copy -c:acopy -t 64.600
> >> dev/shm/6029_cut.mp4
&
On Sat, Jan 13, 2024 at 9:22 PM DEF wrote:
>
> On Sat, 13 Jan 2024 at 19:09, Andrew Randrianasulu
> wrote:
> >
>
> >
> > also
> >
> > /dev/shm/ffmpeg/ffmpeg -i /dev/shm/6029_cut_2.mp4 -vf showinfo -f null
> > /dev/null
> >
> > last li
On Sat, Jan 13, 2024 at 8:57 PM Def Etienne wrote:
>
>
> Sent from my iPhone
>
> > On 13 Jan 2024, at 15:44, Andrew Randrianasulu
> > wrote:
> >
> > I compiled new ffmpeg I tried to cut mp4
> >
> > -to parameter was coming from mpv:
> &
I compiled new ffmpeg I tried to cut mp4
-to parameter was coming from mpv:
bash-5.1$ mpv ~/6029.mp4
(+) Video --vid=1 (*) (h264 720x400 25.000fps)
(+) Audio --aid=1 (*) (aac 2ch 48000Hz)
AO: [alsa] 48000Hz stereo 2ch float
VO: [gpu] 720x400 yuv420p
(Paused) AV: 00:01:04.600 / 01:28:31.600
I was looking into loslesscut issue tracker and found two related issues:
https://github.com/mifi/lossless-cut/issues/126
" Implement "smart cut"
this branches into avcut and its explanation, and into
https://github.com/mifi/lossless-cut/issues/1216
"How to seek to and cut from a frame in
пт, 12 янв. 2024 г., 05:18 Mark Filipak :
> On 1/10/24 16:50, Devin Heitmueller wrote:
> > On Wed, Jan 10, 2024 at 4:26 PM Mark Filipak
> wrote:
> >> The change from 1048560 to 1174560 has to be happening inside the
> muxer, wouldn't you say? We now
> >> know that what's going into the muxer is
чт, 11 янв. 2024 г., 17:42 Nicolas Gaullier :
> >De : ffmpeg-user De la part de Andrew
> Randrianasulu
> >
> >But as it was said in forum post above - ffprobe a bit slow, few
> minutes for whole video, eating one cpu core completely.
> >
> >Is there faste
чт, 11 янв. 2024 г., 03:13 Andrew Randrianasulu :
> I was looking at videohelp forum
>
>
> https://web.archive.org/web/20201125203546/https://forum.videohelp.com/threads/398119-Cutting-Open-GOP-H264-videos-properly
>
> (web archive link because it hopefully will stay active
I was looking at videohelp forum
https://web.archive.org/web/20201125203546/https://forum.videohelp.com/threads/398119-Cutting-Open-GOP-H264-videos-properly
(web archive link because it hopefully will stay active for some time even
if forum software will be upgraded and ruin old links in the
ср, 10 янв. 2024 г., 06:23 Andrew Randrianasulu :
>
>
> вт, 9 янв. 2024 г., 15:04 Rob Hallam :
>
>> On Mon, 8 Jan 2024 at 23:02, Mark Filipak
>> wrote:
>>
>> > [explanation snipped]
>> > Oh, I think I see why your difficulty, Rob.
>>
>
вт, 9 янв. 2024 г., 15:04 Rob Hallam :
> On Mon, 8 Jan 2024 at 23:02, Mark Filipak
> wrote:
>
> > [explanation snipped]
> > Oh, I think I see why your difficulty, Rob.
>
> Thank you for taking the time to write the explanations, they are much
> appreciated.
>
> My difficulty, as you guessed, is
вт, 9 янв. 2024 г., 11:35 Mark Filipak :
> On 1/8/24 01:46, Andrew Randrianasulu wrote:
> > пн, 8 янв. 2024 г., 09:13 Mark Filipak :
> >
> >> On 1/8/24 00:26, Andrew Randrianasulu wrote:
> >>> пн, 8 янв. 2024 г., 05:14 Mark Filipak :
> >>>> What
вт, 9 янв. 2024 г., 02:02 Mark Filipak :
> On 1/8/24 08:08, Rob Hallam wrote:
> > On Mon, 8 Jan 2024 at 12:37, Mark Filipak
> wrote:
> >>
> >> On 1/8/24 07:16, Rob Hallam wrote:
> >>> On Mon, 8 Jan 2024 at 12:07, Mark Filipak
> wrote:
> >>>
> For example, if 'v' (video) and 'a' (audio)
пн, 8 янв. 2024 г., 09:13 Mark Filipak :
> On 1/8/24 00:26, Andrew Randrianasulu wrote:
> > пн, 8 янв. 2024 г., 05:14 Mark Filipak :
> >> What is it that you want to know?
> >>
> >
> > I think I like to try and see bigger picture behind acronym
пн, 8 янв. 2024 г., 07:02 Mark Filipak :
> On 1/7/24 22:12, Jim DeLaHunt wrote:
>
> > For instance, this command:
> >
> > > ffmpeg -f lavfi -i "testsrc" -to 1:00 testpat.m2ts
> >
> > generates a 60-second video with a test pattern. Anyone with recent
> FFmpeg can generate a video like
> > this,
пн, 8 янв. 2024 г., 05:14 Mark Filipak :
> On 1/7/24 17:34, Andrew Randrianasulu wrote:
> >
> > Well, we (cinelerra-gg users/hackers/maintainers) run into aspect ratio
> > issues too , and I tried to demistify it for myself ... only to run into
> > much more complex e
чт, 28 дек. 2023 г., 08:54 Kieran O Leary :
> Hi Mark
>
> On Wed 27 Dec 2023 at 08:53, Mark Filipak
> wrote:
>
> > On 12/27/23 01:58, Kieran O Leary wrote:
> > > On Tue 26 Dec 2023 at 22:53, Mark Filipak
> > >> Oh, no! Mister Billipedia! Hahahaha... (where people who are as ill
> > >> informed
"swr/swresample: avoid reapplication of firstpts"
Shouldn't it appear in 6.1 branch too?
http://git.ffmpeg.org/gitweb/ffmpeg.git/commit/be8a4f80b97222d99b4262c9230ca8a1db28973a
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вс, 10 дек. 2023 г., 21:51 KoreanFanOfficial :
> Show me your code where kmsrab working with alsa/pulse without any issue on
> debian/arch system Cuz you cant, cuz this problem exist many years and
> dont fixed. Do you even try to install debian/arch??? If you already
> install arch/debian
сб, 2 дек. 2023 г., 14:55 frhun :
>
> Hello
>
>
> I've posted a couple of times before, where it's for this reason or that
> reason, now my problem is that since q-scale was set to -g 2
well, every second frame is keyframe is kinda drastic on encoder! Try 15 or
25 .
the
> resolution
пн, 27 нояб. 2023 г., 19:54 Lowell Friesen :
> Hi there,
>
> I’m trying to compile FFmpeg on Debian 12 to enable hardware encoding
> with an Nvidia graphics card, but am having some issues. I have
> installed the nvidia driver and cuda toolkit. This is the output of
> |nvidia-smi|:
>
>
I am trying to add fp32 tiff reading via ffmpeg for cinelerra-gg.
we have this routine:
convert_ctx = sws_getCachedContext(convert_ctx, ip->width, ip->height,
pix_fmt,
frame->get_w(), frame->get_h(), ofmt, SWS_POINT, NULL, NULL, NULL);
if( !convert_ctx ) {
fprintf(stderr,
пн, 13 нояб. 2023 г., 14:35 Aditya Dandavate :
> On Sun, 12 Nov, 2023, 11:15 pm Andrew Randrianasulu, <
> randrianas...@gmail.com> wrote:
>
> > вс, 12 нояб. 2023 г., 20:23 Aditya Dandavate <
> adityadandavat...@gmail.com
> > >:
> >
> >
> >
сб, 11 нояб. 2023 г., 13:05 Zdravko Ćirić :
> Hello all,
>
> I'm trying to combine an alternating fields interlaced video stream from an
> UVC video device. The device is an analog (CVBS) to digital converter that
> supports Interlaced video through usage of the FID flag in the UVC data
>
вс, 12 нояб. 2023 г., 20:23 Aditya Dandavate :
> I have an Intel Pentium G3240 processor.
> This is a quite a low end processor and even x264 etc is cpu-intensive and
> even encoding with this encoder is really slow. (6.0 to 6.5 fps with medium
> preset).
>
> I encoded some videos with mpeg4
сб, 11 нояб. 2023 г., 18:20 Gyan Doshi :
>
>
> On 2023-11-11 08:03 pm, Andrew Randrianasulu wrote:
> > For announcement writer(s) - can you please at least list API changes
> with
> > pointer to documentation section?
>
> See doc/APIchanges
>
well, there
For announcement writer(s) - can you please at least list API changes with
pointer to documentation section?
As someone who tries to co-maintain software (cinelerra-gg) relying on
ffmpeg AND other libraries fishing out changes and examples out of git log
exhaust me and makes me sad.
пт, 10 нояб. 2023 г., 22:01 Mark Filipak :
> Never mind. I see it. Duh?
>
you missed "-i" before input?
> ___
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> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above,
ср, 8 нояб. 2023 г., 00:36 Dennis Mungai :
> On Tue, 7 Nov 2023 at 00:55, Andrew Randrianasulu >
> wrote:
>
> > FFmpeg today support some opencl filters (but I was unable to use them
> > freely in Cinelerra-gg probably because they require not just
> > initializatio
вт, 7 нояб. 2023 г., 20:57 Carl Zwanzig :
> On 11/7/2023 10:00 AM, Paul B Mahol wrote:
> > I can answer it,
>
> Then DO SO! There's no reason to hold back.
>
well, I am not sure if anything can pull 2000 filters ON TOP of each other
(src-> f1 -> f2 -> f3 ... -> f2000 ->end)
but applying dynamic
FFmpeg today support some opencl filters (but I was unable to use them
freely in Cinelerra-gg probably because they require not just
initialization of hw device but also manual up and download of data ...)
but I wonder if same opencl infra can be used in decoders and encoders too?
пт, 27 окт. 2023 г., 15:14 frhun :
>
> Hello everyone
>
> I have a problem
>
> youtube say this:
>
> "
> ffmpeg For the keyframe frequency, set a maximum of four seconds.
> Currently sending frames is not frequent enough, which causes buffering.
> The current key frame rate is 9.0 seconds.
diff --git a/libavdevice/android_camera.c b/libavdevice/android_camera.c
index 602b59047d..c981985f10 100644 ---
a/libavdevice/android_camera.c
+++ b/libavdevice/android_camera.c
@@ -648,8 +648,8 @@ static int add_display_matrix(AVFormatContext *avctx,
AVStream *st)
I am trying to build new ffmpeg on my aarch64 termux installation.
pulled git long time ago, now tried to integrate libxcam filter (without
libxcam installed for now) but I think I run into unrelated build error:
makeinfo: error parsing ./doc/t2h.pm: Undefined subroutine
вс, 15 окт. 2023 г., 23:17 Phil Rhodes via ffmpeg-user <
ffmpeg-user@ffmpeg.org>:
>
> > We removed cinepak encoder and decoder long time ago.
> Boo! Vector compression is beautiful!
>
I think Paul trolled us a bit, from that I can see Cinepack decoder and
encoder still around at
I was playing around with raw2mlv utility and thus downloaded sample file
from this forum post:
https://www.magiclantern.fm/forum/index.php?topic=25945.0
https://www.dropbox.com/s/p2j112gyph5ywzu/ElgersburgBHF.zip?dl=0
around 20 mb.
relatively recent ffprobe from git (as part of Cinelerra-GG
ср, 4 окт. 2023 г., 10:34 Mark Dm :
> Its NOT Telecine. It is Digital Video 8 video at 27.97 FPS
> I am looking specifically for the setting that derives the 59.94FPS from
> the 27.97 FPS source with such beauty and without deinterlace.
>
this answer mentions yadif=1
вс, 1 окт. 2023 г., 02:43 Stéphane Archer :
> Let's say you have a video file encoded with high bitrate with the
> ultra-fast preset in H.264 because you couldn't afford CPU at that time.
> Now you have a huge file mostly because it was encoded quickly.
>
> You are now two days later with access
сб, 30 сент. 2023 г., 20:58 MediaMouth :
>
>
> > On Sep 30, 2023, at 09:31, Andrew Randrianasulu
> wrote:
> >
> > may be remove all OUTPUT_CHx lines so output will be clearly into one mxf
> > file?
>
> Thanks Andrew, will try!
>
> What made
ep 30, 2023 at 10:10 AM Stéphane Archer <
> archersteph...@gmail.com
> > >
> > wrote:
> >
> > > On Sat, Sep 30, 2023 at 10:00 AM Andrew Randrianasulu <
> > > randrianas...@gmail.com> wrote:
> > >
> > > > сб, 30 сент. 2023 г., 16:5
сб, 30 сент. 2023 г., 19:08 Media Mouth :
> How to merge and map 1 video file with 4 audio files?
>
> We've have 1 video file, 4 audio files, all same length.
> The video file is DNxHD36
> The audio tracks are all .wav
>
> The goal is to merge all 5 files in sync
>
> Based on
сб, 30 сент. 2023 г., 16:58 Stéphane Archer :
> Is there an equivalent of Drobox Lepton but for h.264 videos?
> Lepton is a lossless compression algorithm to compress jpeg at around 20%
> there initial file size without any data loss. This is ideal to
> achieve jpeg.
> What about h.264 videos?
>
I was testing nouveau's vdpau state tracker and realized only MPlayer
1.5 was working, but not svn.
I bisected ffmpeg embedded in mplayer's tree and found this:
===
be07145109074e128bd7a8255d81a2b9fdcdf10b is the first bad commit
commit be07145109074e128bd7a8255d81a2b9fdcdf10b
Author: Lynne
!
Andrew
---
* Sample:
https://files.pub.chiller3.com/issues/ffmpeg/20230122-mpls/AVATAR_CE_D1.sample.tar
- SHA-256: 0b2db33fb089f928d6f0d93cef4fcecb0a8bb2d52ab3d18603cd444f960cf1f3
- ~3.8 GiB tarball with original BDMV directory structure
- This is the complete disc with all m2ts streams removed
with FFmpeg / hevc still works fine...
Thanks,
Andrew
--
You think that's air you're breathing now?
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ffmpeg
I’m noticing that -noautorotate is not being accounted for by the video
filters. This is apparent with a rotated video input and grabbing a thumbnail
from it using the video filters.
Tried it with a couple different commands, with the same results:
`ffmpeg -noautorotate -i [rotated-video.mov]
I have a problem with ffmpeg 4.1.6 (raspbian release) that is really
strange. I'm trying to stream a webcam to an rtmp endpoint and the
framerate is stuck at 5fps.
Things i've checked:
- camera can do 25fps at 800x600 with mjpeg or raw output, verified with
v4l2-ctl and ffmpeg
- camera works to
mpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 9.2.0 (GCC)
configuration: --disable-stripping --enable-pic --enable-shared
--enable-pthreads --cross-prefix=aarch64-klondike-linux-
--ld='aarch64-klondike-linux-gcc
--sysroot=/home/andrew/Projects/quicksilver-main/buil
V4L2_CAP_VIDEO_CAPTURE to open. My device does not
support V4L2_CAP_VIDEO_CAPTURE but it does support
V4L2_CAP_VIDEO_CAPTURE_MPLANE. Does FFmpeg have support for
V4L2_CAP_VIDEO_CAPTURE_MPLANE?
~ Andrew
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I need to:
Determine (in ms) the silence between the start of an audio file and the
start of the audio.
Determine the time (in ms) at the end of the file when the audio level
drops to -20db
pydub uses ffmpeg for this in the python module: audio_segment but I
can't figure out how!
Please
e output: https://pastebin.com/r8kgt7Ny
I am trying to change these as I forgot to modify the name of the audio
stream when transcoding with HandBrake. I am trying to avoid re-encoding
the file just to rename the audio track (so it appears correctly in
programs such as VLC).
Thanks for any help.
that are
wrapped up in these presets? The encoding settings from h264_nvenc are
not revealed in the metadata of the output file and grep'ing through
the source has been fruitless so far...
Thanks,
Andrew
--
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gt; just two posts at all - practice what you preach hypocrite
> ___
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> ffmpeg-user@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above, or email
> ffmpeg-user-req
And I subscribe again by asking any question?
On Wednesday, February 20, 2019, 3:26:28 AM EST, Moritz Barsnick
wrote:
On Wed, Feb 20, 2019 at 08:14:18 +, Andrew Valenkov wrote:
> I am but a novice, not aiming to be an FFMPEG expert. I have some
> questions, and prett
I am but a novice, not aiming to be an FFMPEG expert. I have some questions,
and pretty much no answers. It is not in my best interest to be subscribed to
the mailing list all the time, since I get about a dozen (or 3 dozens) messages
in my inbox DAILY. So, how does one unsubscribe (AND
the data to a script on a
server that you do control, and then copy the finished file to the web
server.
If you still need help, please let me know.
Thanks,
Andrew Watters
--
Andrew G. Watters
and...@andrewwatters.com
+1 (415) 261-8527
http://www.andrewwatters.com
> On Oct 2, 2018, at 9:41 AM, David wrote:
>
> Hi
>
> I am trying to get ffmpeg to get a feed from a security camera an capture
> "motion only" - I have successfully done that when processing a recording,
> but whenever I capture from the stream it gets cut at exactly 400 frames:
>
>
>
>
On Tue, 4 Sep 2018 at 09:15 Carl Eugen Hoyos wrote:
> 2018-08-31 2:57 GMT+02:00, Andrew Sinclair :
>
> > Bit of a long shot here in case anyone may know, I am running the same
> > binary of ffmpeg on the same docker image on 2 different hosts and as a
> > result I get a
Hi,
Bit of a long shot here in case anyone may know, I am running the same
binary of ffmpeg on the same docker image on 2 different hosts and as a
result I get a different sized first I frame (out by 1 byte) between the 2
hosts, anyone have any idea how that could happen or know any settings I
>> I am trying to use named pipe as the input of ffmpeg.
Any reason you can’t use stdin or a socket?
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ffmpeg is listening on a socket for input.
I need ffmpeg to exit after the output file is saved.
Is there any way to do this?
thanks!
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>> My goal is for ffmpeg to be running and listening on a network port, then
>> from another machine to send the PNG sequence over the network directly into
>> ffmpeg, and have the resulting video file saved.
>> So I need to work out how to configure ffmpeg to listen on the network for a
>>
,
connect to ffmpeg, tell it what the output filename should be, and then
transmit the PNG files.
Is there any way to do this? Despite many hours research I can’t see if this
is actually possible or not.
thanks!
Andrew
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ffmpeg Team,
According to the ffmpeg documentation the AC-3 encoder has options to access
all Dolby metadata per the Dolby Metadata Guide link available on ffmpeg.org.
This is true for all Dolby metadata except the Dynamic Range Compression (DRC)
profile selection. We are experiencing volume
Hello, everyone I guess. Never used such "mailing lists" before to communicate
with a bunch of people at once.
I am trying to become more computer-savvy, and learn all the digital multimedia
trickery. I am also trying my best to preserve select YouTube videos in their
original quality.
The
Can ffmpeg encode into mxpeg format as its output or does it only
support decoding as input?
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Im using gdigrab on Windows 10 (64bit) to capture the screen like this
ffmpeg -f gdigrab -video_size 1620x917 -offset_x 4 -offset_y 90 -i
desktop -b:v 1000k out.mp4
I can record short clips fine but if I leave it running for more than
about 30 seconds the entire UI freezes then Windows
Im using gdigrab on Windows 10 (64bit) to capture the screen like this
ffmpeg -f gdigrab -video_size 1620x917 -offset_x 4 -offset_y 90 -i
desktop -b:v 1000k out.mp4
I can record short clips fine but if I leave it running for more than
about 30 seconds the entire UI freezes then Windows
On 11/1/2016 10:06 PM, Andrew Sun wrote:
On 11/1/2016 8:39 PM, Phil Rhodes wrote:
Some sort of externally-supplied file defining timings and
positionings for the various audio objects in the stream, I would
think. The ideal format for this would depend on the sort of DAW
software
cribe".
I agree with you here. Dolby Atmos has frame elements, which are
composed of Bed Definition Elements
for the channel beds, Object Definition Elements for the Audio Objects,
and Audio Elements themselves.
Andrew Sun
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very easy to implement Dolby Atmos
encoding for TrueHD and Digital Plus
now that we have the specs. Plex coding is defined right within the
Document.
Andrew Sun
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in development for TrueHD
streams without Atmos, so it won't
be a bad idea to add support for Atmos encoding with TrueHD eventually.
Andrew Sun
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Andrew Sun gmail.com> writes:
>
> Phil Rhodes rocketmail.com> writes:
>
> >
> > > It would also have to be tested against the hardware TV Dolby
> Vision> decoders for conformance.
> > It strikes me that if we could find examples of material that was
utility from ImageMagick. Off the top of my
head, I can suggest throwing your problematic images into it and
converting them to raw bitmaps (.bmp files), and then feed those files
into ffmpeg.
Regards,
Andrew
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th single layer and dual layer)
without errors to silence.
Andrew Sun
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d to auto-detect the hardware capabilities of the monitor.
It would also have to be tested against the hardware TV Dolby Vision
decoders for conformance.
Andrew Sun
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Carl Eugen Hoyos ag.or.at> writes:
>
> Andrew Sun gmail.com> writes:
>
> > https://drive.google.com/file/d/0B5-q6qHXjH0GcHNhT0g3aWxuNWM
>
> I opened ticket #5688, thank you for the sample!
>
> Is there a software decoder?
> Contrary to what was wr
, I'm pretty sure since Dolby Vision is
proprietary, there would have to be reverse engineering involved.
Andrew Sun
On Sat, Jul 2, 2016 at 5:59 AM, Phil Rhodes <phil_rho...@rocketmail.com>
wrote:
> That's a very, very big job which I suspect won't be happening without
> signifi
the
base layer.
Andrew Sun
On Sat, Jul 2, 2016 at 3:35 AM, Carl Eugen Hoyos <ceho...@ag.or.at> wrote:
> Andrew Sun gmail.com> writes:
>
> > Dolby Vision is a 12-bit HDR dual layer codec that has a 10-bit
> > base layer of either HEVC or AVC, and then an enhancem
to be implemented.
Best regards,
Andrew Sun
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