2018-12-20 15:48 GMT+01:00, Ulf Zibis :
> Hi again,
>
> Am 20.12.18 um 01:20 schrieb Carl Eugen Hoyos:
>> I suspect your video does not start at "0".
>
> You may be right, so I'm wondering why. To find this out, I describe how
> I created the video:
>
2018-12-22 16:29 GMT+01:00, Majid Shirazi :
> this is what happen if I remove "&& \":
>
> *[libx264 @ 0xf0c07c00] using SAR=3825/3824*
> *[libx264 @ 0xf0c07c00] using cpu capabilities: ARMv6 NEON*
> *[libx264 @ 0xf0c07c00] ratecontrol_init: can't open stats file*
Complete, uncut conso
2018-12-22 22:03 GMT+01:00, Michael Koch :
> Is it possible to extract a single frame from a 10 bit video and
> save it lossless as a 16 bit PNG file?
FFmpeg's png encoder supports 16 bit per component.
> Unfortunately the documentation for the
> PNG video encoder is very short.
$ ffmpeg -h enc
2018-12-22 8:22 GMT+01:00, Majid Shirazi :
> According to the documentation for using Two-Pass method we have to run
> ffmpeg twice like this:
>
> ffmpeg -y -i input -c:v libx264 -b:v 2600k -pass 1 -an -f mp4 /dev/null && \
> ffmpeg -i input -c:v libx264 -b:v 2600k -pass 2 -c:a aac -b:a 128k
> outp
2018-12-22 6:51 GMT+01:00, Евгений Эресман :
>
> Hello!
> Please help!
> Built ffmpeg-4.1 static with android_camera support.
> Config file attached
> Trying to grab the android camera from the command line:
When asking for help here, always provide the command
line you tested together with the co
2018-12-20 14:22 GMT+01:00, Robert Krüger :
> On Tue, Dec 18, 2018 at 11:40 PM Carl Eugen Hoyos
> wrote:
>
>> 2018-12-18 21:49 GMT+01:00, Robert Krüger :
>> > On Fri, Dec 14, 2018 at 5:28 PM Carl Eugen Hoyos
>> wrote:
>> >
>> >> 2018-12-14 17:1
2018-12-20 15:24 GMT+01:00, Eric Thomas :
> My system administrator downloaded the FFmpeg 4.1
> source code this week,
Sorry for being so nosy:
Does the following command not work for you?
$ curl -O http://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2
$ tar xf ffmpeg-snapshot.tar.bz2
(Above is a q
2018-12-21 0:19 GMT+01:00, Felix Muster :
> When I do the following to get the correct duration:
> ffmpeg -i audio1.ac3 -f null -
> The duration is: 02:24:29.53
> So I have three different durations:
> 1. ffprobe tells me about the untouched ac3-file: 02:24:29.54
> [Estimating duration from bit
2018-12-20 1:18 GMT+01:00, Ulf Zibis :
>
> Am 20.12.18 um 00:07 schrieb Carl Eugen Hoyos:
>> 2018-12-19 22:17 GMT+01:00, Ulf Zibis :
>>
>>> But with
>>> ffmpeg -i CYD.mp4 -r 1/60 CYD_%03d.jpg
>>> I got 78 pictures with good quality (~70 kB).
>&
2018-12-20 0:40 GMT+01:00, Chris :
> Merely copying a PCM audio track used to work through v 4.0.
Yes, as explained, this was a regression that allowed to write
invalid files.
> Just make "copy" like it used to be.
Sorry, this is not possible afaict.
> "Anyway, pcm is defined for some types of
2018-12-19 11:45 GMT+01:00, Chris :
> I have to correct some assumptions here: There IS an
> AudioObjectType and StreamType for PCM.
> streamType (audio) and aot=0!
> The problem is, that the audio specific config for aot 0 is not
> completely defined.
Sounds like a real problem, don't you agree
2018-12-19 19:50 GMT+01:00, Ronak :
>
>> On Dec 19, 2018, at 11:15 AM, Carl Eugen Hoyos wrote:
>>
>> 2018-12-19 17:08 GMT+01:00, Ronak :
>>
>>> I'm trying to use Ffmpeg inside of an Apple framework; (built for all of
>>> Apple's plat
2018-12-19 22:17 GMT+01:00, Ulf Zibis :
> But with
> ffmpeg -i CYD.mp4 -r 1/60 CYD_%03d.jpg
> I got 78 pictures with good quality (~70 kB).
> Picture CYD_001.jpg and CYD_002.jpg were black, CYD_003.jpg
> was frame 00:00:53. Also a little weird, the video is 1:16:20 long.
This is the disadvantage
2018-12-19 17:08 GMT+01:00, Ronak :
> I'm trying to use Ffmpeg inside of an Apple framework; (built for all of
> Apple's platforms). Unfortunately; I'm learning that Apple does not support
> embedding .dylibs inside of .frameworks anywhere but macOS environments.
What is your exact use-case?
Car
2018-12-19 14:39 GMT+01:00, Erwan Douaille :
> I´m trying to compile ffmpeg shared with mingw64 on Windows 10.
> Here is the configure command:
>
> ./configure --arch=x86_64 --enable-shared --disable-static
> --prefix=/e/Downloads/ffmpeg-dyn/
Unrelated: "--arch=x86_64" does not do what you ex
2018-12-19 14:35 GMT+01:00, qw :
> I build zeromq-4.2.5, and build ffmpeg with --enable-libzmq.
> How to build tools/zmqsend?
Should work with:
$ make tools/zmqsend
But it may not have been tested for some time, please report back.
Carl Eugen
___
ffmp
2018-12-18 21:49 GMT+01:00, Robert Krüger :
> On Fri, Dec 14, 2018 at 5:28 PM Carl Eugen Hoyos wrote:
>
>> 2018-12-14 17:19 GMT+01:00, Robert Krüger :
>> > On Fri, Dec 14, 2018 at 3:03 AM Carl Eugen Hoyos
>> wrote:
>> >
>> >> 2018-12-13 17:10 GMT
2018-12-18 12:36 GMT+01:00, Joshua Grauman :
> I have two video cameras recording an event 30 minutes long. I hit start
> on the two cameras at different times. I would like to figure out a
> command-line script that can basically diff the audio to figure out the
> difference between the start tim
2018-12-18 19:17 GMT+01:00, sean darcy :
> I've got a VOB soft telecined 24 fps -> 3000/1001. Actually 28.83 fps -
> what's that about ?
>
> ffprobej 0.VOB
> Input #0, mpeg, from '0.VOB':
>Duration: 01:42:49.76, start: 0.023444, bitrate: 5473 kb/s
> Stream #0:0[0x1e0]: Video: mpeg2video (M
2018-12-18 19:17 GMT+01:00, sean darcy :
> I've got a VOB soft telecined 24 fps -> 3000/1001.
You cannot detelecine soft-telecine with FFmpeg because FFmpeg
ignores soft-telecine as should your digital player.
Carl Eugen
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2018-12-18 17:46 GMT+01:00, Dave Stein :
> I just subscribed here after having some trouble with ffmpeg
> CLI and being unable to post in the IRC channel #ffmpeg. If
> anyone can help me with the latter, much appreciated in direct
> email back.
While the irc channel should be unmoderated (what do
2018-12-18 13:28 GMT+01:00, DopeLabs :
> assuming h264/aac
>
> ffmpeg -i ipcam -c copy -f flv rtmp://youtube -f mp4 localfile.mp4
This has the disadvantage of encoding two streams, an alternative
can be the tee muxer.
Please remember not to top-post here, Carl Eugen
__
2018-12-17 23:16 GMT+01:00, Chris :
> ffmpeg -y -i "D:\Videos\Trains\December_6_2018_San_Jose\C0061.MP4" -crf 1
> -c:v libx264 -pix_fmt yuv420p -s 1280x720 -r 59.94 -vf
> eq=gamma=0.83,lutyuv=y='clip(val,26,220)' -c:a copy processed.mp4
> [mp4 @ 01e4d10100c0] Could not find tag for co
2018-12-17 22:48 GMT+01:00, Ulf Zibis :
> I want to extract JPEG pictures from a MPEG-Video, one per minute.
>
> Can one give me some hints for an appropriate ffmpeg command?
There is a select filter, as an alternative you can use the output
option "-r" with a fraction as operand, "-r 1/60".
Car
2018-12-17 22:16 GMT+01:00, Chris :
> Today I upgraded to ffmpeg v 4.1.
Please don't (unless you are a distributor, if you are not, only
current FFmpeg git head is recommended and supported).
> The following code used to work but no
> longer does. What is the fix?
Actual command line and complet
2018-12-17 10:04 GMT+01:00, Felix Muster :
> I need to convert different audio streams with ffmpeg (v4.0.3-win64).
>
> But there are several error/warning messages I need to handle.
>
> Here are some example code snippets:
Code snippets unfortunately are not helpful, if you need support
here, ple
2018-12-15 2:54 GMT+01:00, dan9er :
> Is there a way to reduce these artifacts by using one
> of ffmpeg's filters?
I cannot rule it out but looking at the type of the artefacts
I think it is not very likely.
I also confirmed that the same issues are visible not using
FFmpeg to decode.
Carl Eugen
2018-12-15 2:57 GMT+01:00, Carl Zwanzig :
> On 12/14/2018 5:22 PM, Carl Eugen Hoyos wrote:
>> (We love samples.)
>
> We do, well, I do, although large samples are not
> always necessary, or even desirable
That's why we have a 2.5 MB size limit on the bug tracker.
I just
2018-12-15 2:16 GMT+01:00, Carl Zwanzig :
> On 12/14/2018 2:56 PM, Dan9er wrote:
>> Is there a way to remove these artifacts, preferably with as
>> little loss of quality as possible?
>
> Would you put up some single-frames showing the artifacts,
> or some short clips, so no one has to download 400
2018-12-14 23:56 GMT+01:00, Dan9er :
> For a job, I have received some AVI files with visible artifacts on them. I
> am tasked with removing the artifacts. These video files are movies
> rendered using MovieShaker, and the raw footage does not have artifacts.
>
> Is there a way to remove these arti
2018-12-14 17:19 GMT+01:00, Robert Krüger :
> On Fri, Dec 14, 2018 at 3:03 AM Carl Eugen Hoyos wrote:
>
>> 2018-12-13 17:10 GMT+01:00, Robert Krüger :
>>
>> > is there a way to get the exact duration of a raw mpeg1 file using the
>> > ffmpeg command line? Fo
2018-12-13 12:45 GMT+01:00, Utkarsh Agarwal :
> I am working on a screen sharing iOS application . Getting streams from
> Replay Kit which supports RTMP protocol and sending it to Kurento Media
> Server which supports RTP.
>
> I can do something like below on server side.
>
> [Browser] -> WebrtcEnd
2018-12-13 17:10 GMT+01:00, Robert Krüger :
> is there a way to get the exact duration of a raw mpeg1 file using the
> ffmpeg command line? For testing I created a 30 minute test file using
> ffmpeg (using -c:v mpeg1video -f mpeg1video), then verified the duration
> using VLC and mediainfo and it
2018-12-13 0:57 GMT+01:00, Hans Carlson :
> On Wed, 12 Dec 2018, Carl Eugen Hoyos wrote:
>
>> 2018-12-08 22:28 GMT+01:00, Ulf Zibis :
>>
>>> with:
>>> ffmpeg -i "concat:CYD-001.vob|CYD-002.vob|..." -c copy CYD_copy.vob
>>> I get the warni
2018-12-12 20:11 GMT+01:00, Carl Eugen Hoyos :
> 2018-12-08 22:28 GMT+01:00, Ulf Zibis :
>
>> with:
>> ffmpeg -i "concat:CYD-001.vob|CYD-002.vob|..." -c copy CYD_copy.vob
(My answer wasn't wrong but your command line does not make
much sense.)
If your com
2018-12-08 22:28 GMT+01:00, Ulf Zibis :
> with:
> ffmpeg -i "concat:CYD-001.vob|CYD-002.vob|..." -c copy CYD_copy.vob
> I get the warning:
> [svcd @ 0x56377151e140] VBV buffer size not set, using default size of 130KB
> If you want the mpeg file to be compliant to some specification
> Like DVD, VC
2018-12-12 16:25 GMT+01:00, Eric Thomas :
> I am trying to build a set of shared libraries. I have successfully run
> these different configure commands:
>
> bash ./configure --prefix=/myhome/ffmpeg/FFmpeg-4.0.3
Only current FFmpeg git head is supported here, sorry.
Please find out what "top-pos
2018-12-12 16:52 GMT+01:00, Ivan :
>>The ogg format apparently allows for this feature, note that the
>>format has so many issues that it cannot be seriously recommended.
>
> Just to be sure I understand you say ogg container is not good, right? Can
> you bit elaborate what is the problem if I'm u
2018-12-12 8:30 GMT+01:00, Ivan Zderadicka :
>
> On 11/12/18 18:41, Carl Eugen Hoyos wrote:
>> 2018-12-11 18:26 GMT+01:00, Ivan :
>>
>>> just curious why it then works with ogg container and not in webm.
The formats are different, you need to seek back to write the
2018-12-11 19:28 GMT+01:00, Dinesh Gupta :
> My intention was that how may I use 'ffio_open_dyn_packet_buf' function
> from avformat.lib & avformat.dll. Which is internal function according to
> you.
No, it is not an internal function "according to me" but according to
the documentation (and you
2018-12-11 18:26 GMT+01:00, Ivan :
> just curious why it then works with ogg container and not in webm.
I am not convinced it works, would need console output.
> What's reason that header must be updated afterwards?
Duration is only known at the end of transcoding.
Please do not top-post here,
2018-12-11 17:25 GMT+01:00, Ronak :
>
>
>> On Dec 10, 2018, at 7:29 PM, Carl Eugen Hoyos wrote:
>>
>> 2018-12-11 1:07 GMT+01:00, Ronak :
>>> Hey guys,
>>>
>>> I'm trying to use the dynaudnorm and earwax filters in my iPhone app, and
>&
2018-12-11 17:08 GMT+01:00, Dinesh Gupta :
> Please explain bit more. How can I achieve that?
What should I explain more, what did you try, what did not work?
> When same thing Compiled in Ubuntu 16.04 at that time their were
> no such issue. But when compiled with wingw32 on window
> machine fu
2018-12-11 15:13 GMT+01:00, Ivan Zderadicka :
> ffmpeg -i kapitola.mp3 -y -map-metadata 0 -map a -acodec libopus -vbr on
> -b:a 24k -compression_level 6 -cutoff 12000 -f webm pipe:1 > test1.webm
(Complete, uncut console output missing.)
If you use pipe output, it is impossible to update the file
2018-11-12 18:20 GMT+01:00, Ronak :
> I'm trying to get Ffmpeg to package and generate a valid fMP4 file for HLS
> of an Audio Only Dolby Digital Plus file. However, the stream that I get is
> unplayable and has no audio in its sample tables.
>
> Here's an example command:
>
> ffmpeg -i atmosTest.
2018-12-11 9:19 GMT+01:00, Dinesh Gupta :
> While building 'ffmpeg' 4.0.2 and above, missing function
> 'ffio_open_dyn_packet_buf'. Due to this I am unable to compile my project.
> I spend my whole week to find the solution but didn't get success. When
> searching this function in code than it is a
2018-12-11 1:07 GMT+01:00, Ronak :
> Hey guys,
>
> I'm trying to use the dynaudnorm and earwax filters in my iPhone app, and
> I've noticed that the dynaudnorm filter wants to resample the audio.
>
> Is there any way to avoid resampling the audio? What format does the filter
> expect the input to b
2018-12-06 22:38 GMT+01:00, Taner Sener :
> I’m trying to compile git master with Android NDK r18b but having the
> following errors. The same method works on the older NDK releases,
> so it looks like something has changed in the new NDK r18b. Do you
> have any ideas how to resolve it?
v4l2 comp
2018-12-10 12:18 GMT+01:00, Gabriele Greco :
> I guys,
>
> I was wandering what are the correct ffmpeg options to encode a video
> giving priority to video (i.e. never dropping a frame) in case of damaged
> files with missing video frames and/or missing audio blocks.
>
> Specifically I'd like to:
>
2018-12-08 14:05 GMT+01:00, Kieran O Leary :
> On Sat, 8 Dec 2018, 12:48 Carl Eugen Hoyos
>> 2018-12-08 13:45 GMT+01:00, Kieran O Leary :
>>
>> > So I guess that TIFF, and DPX need to be mapped in the Matroska
>> > specification?
>>
>> Not sure if I am
2018-12-08 13:45 GMT+01:00, Kieran O Leary :
> So I guess that TIFF, and DPX need to be mapped in the Matroska
> specification?
Not sure if I am the right person to answer but why would you want to
put images into another container?
Shouldn't you keep the original image files and use ffmpeg to p
2018-12-08 13:10 GMT+01:00, Kieran O Leary :
> Hi Carl,
>
>
> On Sat, Dec 8, 2018 at 11:00 AM Carl Eugen Hoyos wrote:
>
>> 2018-12-08 11:46 GMT+01:00, Kieran O Leary :
>>
>> > When re-wrapping DPX or TIFF images to Matroska, it appears that
>> > FFmp
2018-12-08 11:46 GMT+01:00, Kieran O Leary :
> When re-wrapping DPX or TIFF images to Matroska, it appears that
> FFmpeg uses the V_QUICKTIME codec ID.
Where can I find the specification for tiff in matroska and dpx in matroska?
> Why is this used?
The answer depends on above...
Carl Eugen
___
2018-12-08 11:46 GMT+01:00, Kieran O Leary :
> When re-wrapping DPX or TIFF images to Matroska, it appears that
> FFmpeg uses the V_QUICKTIME codec ID.
Where can I find the specification for tiff in matroska and dpx in matroska?
> Why is this used?
> Would something like V_UNCOMPRESSED (for raw
2018-12-07 20:37 GMT+01:00, Ulf Zibis :
> in FAQ I see options and flags, which I can't find in the documentation:
> https://ffmpeg.org/faq.html#toc-Which-are-good-parameters-for-encoding-high-quality-MPEG_002d4_003f
Should be fixed (tomorrow).
Thank you for the report, Carl Eugen
__
2018-12-07 20:33 GMT+01:00, Ulf Zibis :
> Hi,
>
> I have a VOB-file, originally recorded from a VHS-Kassette.
>
> On the upper edge I see a black line from left to the middle.
>
> Approximately 5 lines from bottom I see 2..3 other horizontally shifted
> flickering lines.
>
> Filter kerndeint remove
2018-12-07 1:46 GMT+01:00, Carl Eugen Hoyos :
> 2018-12-07 1:19 GMT+01:00, Code Wiget :
>> Hi. I’m having trouble cross compiling for a Mangoh Red…
>>
>> I found a post
>> here: https://ffmpeg.org/pipermail/ffmpeg-user/2015-July/027612.html
>> where
>> som
2018-12-07 1:19 GMT+01:00, Code Wiget :
> Hi. I’m having trouble cross compiling for a Mangoh Red…
>
> I found a post
> here: https://ffmpeg.org/pipermail/ffmpeg-user/2015-July/027612.html where
> someone else had a similar issue, but this command doesn’t work. For some
> reason, it is saying that
2018-12-06 23:43 GMT+01:00, Taner Sener :
>> Work-around is to add: --disable-indev=v4l2
>
> Thanks Carl, this flag saved my day.
Patch (ugly) sent:
http://ffmpeg.org/pipermail/ffmpeg-devel/2018-December/237289.html
Carl Eugen
___
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2018-12-06 22:52 GMT+01:00, Davood Falahati :
>>
>>
>> > I'm using the following steps to cross-compile ffmpeg
>>
> Follow this:
> https://github.com/falahati1987/ffmpeg4Android
> --extra-cflags="-DANDROID -fPIC
> -I$HOME/work/FFMPEG/ffmpeg-build/armeabi-v7a/include
> -ffunction-sections -funwind-
2018-12-06 22:38 GMT+01:00, Taner Sener :
> Hello,
>
> I’m trying to compile git master with Android NDK r18b but having the
> following errors. The same method works on the older NDK releases, so it
> looks like something has changed in the new NDK r18b. Do you have any ideas
> how to resolve it?
2018-12-06 19:40 GMT+01:00, Karen Norton :
> On Thu, Dec 6, 2018 at 1:30 PM Carl Eugen Hoyos wrote:
>
>> 2018-12-06 19:26 GMT+01:00, Karen Norton :
>>
>> > I'm hoping someone can help with understanding writing metadata to files
>> > using ffmpeg
2018-12-06 19:26 GMT+01:00, Karen Norton :
> I'm hoping someone can help with understanding writing metadata to files
> using ffmpeg. The type of metadata I'm referencing is information such as
> movie/song title, artist, album, author, genre, show, etc.
Command line and complete, uncut console
2018-12-05 19:45 GMT+01:00, Eric Thomas :
> I just verified that I have FFmpeg 4.0.3.
Only current FFmpeg git head is supported here.
Sorry, Carl Eugen
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T
2018-12-05 17:54 GMT+01:00, Eric Thomas :
> I had our sys-ad install gnu sed (v4.5), and I modified the 3 instances of
> "sed -E" in the configure script.
This is not necessary anymore, configure was fixed.
> It now runs to completion - although it takes about 6 minutes to complete.
Which versi
2018-12-05 11:55 GMT+01:00, Daniel Oberhoff :
> We are now starting to use the single file hls muxer with the fmp4 file
> format. While running a test i found the situation where a segment
> appeared in the playlist that was not yet fully written.
Command line and complete, uncut console output m
2018-12-05 10:38 GMT+01:00, Agniva De Sarker :
> I have a stream of images coming from an another application which I am
> streaming to ffmpeg from a pipe. Now I want to expose this stream as an
> rtsp stream encoded with .h264.
>
> I can do the stream using something like this -
> https://video.st
2018-12-04 23:24 GMT+01:00, sean darcy :
> ffmpeg -i /opt/2T1/video/plex/Movies/Shows/WSS-Dance_t02.mkv -map v -map
> 0:1 -bsf:a dca_core -c:a copy -c:v libx265 -crf 26 -preset slower -dn
> -sn -nostdin /opt/2T1/video/plex/Movies/Shows/wss-dance-265.mp4
Please run "ffmpeg -i wss-dance-265.mp4"
A
2018-12-02 0:37 GMT+01:00, darkm...@frontier.com :
> Now the challenge is libmp3lame
lame still works without pkgconfig.
Carl Eugen
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2018-11-30 18:51 GMT+01:00, José María Infanzón :
>>> A freeze detect filter have been recently add :
>>> https://www.ffmpeg.org/ffmpeg-filters.html#freezedetect
>> In which version? I've compiled ffmpeg 4.1
On this mailing list, only current FFmpeg git head is
supported (your question is an expl
2018-11-27 13:09 GMT+01:00, Liran Bachar :
> Why automatic codec detection fails? What can I do to fix this?
Feel free to use this patch:
https://patchwork.ffmpeg.org/patch/8744/
Carl Eugen
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2018-11-13 9:38 GMT+01:00, Robert Szelepcsényi :
> I need an utility that can receive a complete mpeg transport stream on one
> multicast address, select one particular program and stream it to another
> multicast address. For example, this works perfectly for me:
>
> ffmpeg -copy_unknown -i udp:/
2018-11-12 18:20 GMT+01:00, Ronak :
> I'm trying to get Ffmpeg to package and generate a valid fMP4 file
> for HLS of an Audio Only Dolby Digital Plus file.
Is your input file really an atmos file?
If yes, please provide such a sample.
Carl Eugen
___
f
2018-11-27 13:16 GMT+01:00, Marcus Rowcliffe :
> I've recently been playing with ffmpeg to extract frames from videos at a
> fixed rate. I'm finding that the first two frames extracted are almost
> simultaneous (I think the first two frames of the video), with subsequent
> frames extracted at the
2018-11-26 14:44 GMT+01:00, hans gerte :
> Hi, need some help. i read a lot of forums and googled it, but i got more
> confused.
> i have a Ubuntu 14.04 running ffmpeg 3.4 (From add-apt-repository
> ppa:mc3man/trusty-media).
> and now i just bought 2 Nvidia Quadro P5000.
> the part that i don't kno
2018-11-25 0:02 GMT+01:00, Daniel Senderowicz :
> What I found on the internet are cases of converting 24fps to 30fps, but my
> case is different. These movies have been filmed at 18fps, the digitizing
> was done at 20fps, so how do I handle the arithmetic for this case?
You may be right that the
2018-11-24 23:48 GMT+01:00, Daniel Senderowicz :
> So how should I do that with MEncoder?
I have asked for an example in this ticket (and there is one):
https://trac.ffmpeg.org/ticket/2602
An alternative is to google for "mencoder soft telecine".
Please do not top-post here, Carl Eugen
__
2018-11-24 20:06 GMT+01:00, Daniel Senderowicz :
> I just purchased a film scanner for my very old 8mm and super8 movies. This
> machine (Wolverine pro) generates a MP4 file at 20fps (only option). I
> would like to convert these files to 30fps (29.97?) so I can burn DVDs.
I believe the correct wa
2018-11-23 18:07 GMT+01:00, Dale Powell :
> I have this file from one of our video suppliers at work, it is the source
> file as the video is saved on their servers and comes with an unknown to me
> .blt extension. I have not managed to get it to play on anything, even
> changing or removing the f
2018-11-22 17:44 GMT+01:00, Harvey Pikelberger :
> ffmpeg -i ffmpeg -i SoundMappingTest-I-8Discreet.mov -map 0 -g 48 -c:v
> libx264 -profile:v baseline -crf 16 -c:a aac -b:a 256k -vf scale=1280:720
> -pix_fmt yuv420p SoundMappingTest-I-8Discreet.mp4
You (apparently) cannot copy the timecode track
2018-11-22 17:36 GMT+01:00, Javier Fuentes :
> Hello Everybody
>
>
> I have this ffmpeg command
> ffmpeg -i rtp://127.0.0.1:6000 -map 0:4 -map 0:2 -vcodec libx264 -b:v 1500k
> -s 720x576 -acodec aac -ab 128k -ac 2 -ar 48000 -r 25 -f flv
> rtmp://encoder
>
> I have a lot of errors when i start
2018-11-22 16:04 GMT+01:00, Ron Barnes :
> I am using Plex on my LG TV
But the input and output files look different on playback, correct?
Please do not top-post here, Carl Eugen
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2018-11-22 15:10 GMT+01:00, Hernan Gips :
> Thanks Carl, i can confirm that with `-disable-bsf=extract_extradata` i'm
> able to decode and play the video file correctly.
>
> Still, the file was extracted from an RTSP session and when i try to use
> ffplay directly against the RTSP server is still
2018-11-22 14:28 GMT+01:00, Ron Barnes :
> Stream #0:0: Video: hevc (Main 10), yuv420p10le(tv,
> bt2020nc/bt2020/smpte2084), 3840x2160 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98
> tbr, 1k tbn, 23.98 tbc (default)
Looks similar.
Which applications are you using for playback?
For both files the same
2018-11-22 12:50 GMT+01:00, Ron Barnes :
> The issue I'm having (and I have gotten help already, thanks to all) is the
> colors are faded and washed out. I have been trolling the documentation
> site and trying differing command options but nothing seems to work.
>
> Here is my line command...
>
2018-11-22 13:24 GMT+01:00, hans gerte :
> i have some live streams (free to air) that have multiply audio
> and dvbsub tracks.
> i managed to transcode the stream to only use 1 audio and 1 dvbsub.
> but the problems is that the dvbsub is not active until i selected it.
Command line and complete,
2018-11-21 22:35 GMT+01:00, Harvey Pikelberger :
> Looking at FFmpeg's asplit, I wasn't immediately able to see
> how that would help in this situation.
That's because I meant the channelsplit filter:
https://ffmpeg.org/ffmpeg-filters.html#channelsplit
Sorry, Carl Eugen
_
2018-11-21 19:13 GMT+01:00, Hernan Gips :
>> Only current FFmpeg git head is supported here.
>>
>> Feel free to provide a sample, Carl Eugen
>>
>
> Hi Carl, the problem is also on git head.
>
> You can download video from here:
> https://drive.google.com/file/d/18tLhD2NTZuQVw2f_NaflfcrEsctTTI8n/vie
2018-11-21 21:23 GMT+01:00, sean darcy :
> I have a 1949 french movie. I need the subtitles, my french isn't good
> enough any more !
>
> The problem is that the subtitles stream doesn't start until 85 seconds
> into the movie.
Use -probesize and -analyzeduration with *really* big numbers.
Carl E
2018-11-21 20:20 GMT+01:00, Eric Thomas :
> uname –a
>
> SunOS devm 5.10 Generic_150400-61 sun4u sparc SUNW,Sun-Fire-V490
You unfortunately need GNU sed, configure fails without
and you absolutely *have* to edit configure: Search for
"sed -E" and replace it with "/path/to/your/gnu/sed -E".
T
2018-11-21 18:18 GMT+01:00, Harvey Pikelberger :
> RE "The audio configuration of your two input is very different..."
> Is the issue that the ProRes is encoded 7.1 -- or -- that it's not 7.1
> but FFmpeg is interpreting as such?
I missed "Guessed Channel Layout for Input Stream #0.1 : 7.1" and
a
2018-11-21 2:21 GMT+01:00, Kieran O Leary :
> 2) A version of ffmpeg that I compiled with openjpeg, but with
> the internal ffmpeg decoder enabled.
>
> $ ffmpeg -i Downloads/CHARBON-INTEROP-24/video1.mxf
This will not use the libopenjpeg jpeg2000 decoder in any way.
Carl Eugen
__
2018-11-21 16:27 GMT+01:00, Harvey Pikelberger :
>
>> On Nov 20, 2018, at 3:05 AM, Carl Eugen Hoyos wrote:
>>
>> 2018-11-20 4:28 GMT+01:00, Harvey Pikelberger :
>>> Testing the creation of 8-audio-channel mp4 proxies from ProRes422
>>> sources using ffmpeg.
2018-11-21 16:30 GMT+01:00, Hernan Gips :
> I'm having problems decoding and playing a RAW h264
> video file, on older versions of ffmpeg (2.5.1) I'm able to
> decode the video correctly,
> but with newer versions like 3.4.4 it can't decode.
Only current FFmpeg git head is supported here.
Fe
2018-11-20 14:12 GMT+01:00, Kieran O'Leary :
> I remember that older versions of ffmpeg would detect a pix_fmt of
> xyz12le when a jpeg2000/MXF file from a DCP was passed as input.
> Now I see a value of: rgb48le(12 bpc, progressive)
>
> Was this intentional, and if so, why did the behaviour chang
2018-11-20 12:05 GMT+01:00, Carl Eugen Hoyos :
> 2018-11-20 4:28 GMT+01:00, Harvey Pikelberger :
>> Testing the creation of 8-audio-channel mp4 proxies from ProRes422
>> sources using ffmpeg. For some reason audio channel 4 of the mp4
>> is coming back muffled, like it
2018-11-20 4:28 GMT+01:00, Harvey Pikelberger :
> Testing the creation of 8-audio-channel mp4 proxies from ProRes422
> sources using ffmpeg. For some reason audio channel 4 of the mp4
> is coming back muffled, like it got drowned in a pool.
Every aac encoder will assume that one of eight input cha
2018-11-20 7:01 GMT+01:00, aarthi priya :
> I noticed that the peak bandwidth is missing in the HLS master
> manifest generated by ffmpeg. Is there any reason why this is
> not implemented yet?
Command line and complete, uncut console output missing.
Carl Eugen
__
2018-11-19 18:42 GMT+01:00, Reto Kromer :
> Carl Eugen Hoyos wrote:
>
>>My question was:
>>Does the player that already supports this abomination depend
>>on the metadata? I would prefer to rule this out before spending
>>more time with this 4G file.
>
> It'
2018-11-19 18:34 GMT+01:00, Reto Kromer :
> Carl Eugen Hoyos wrote:
>
>>I wonder if metadata is really sufficient to decode an mxf
>>file...
>
> In my personal opinion, no.
My question was:
Does the player that already supports this abomination depend
on the metadata? I w
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