videotoolbox is paid which i can't use due to budget issues.
Although have posted the same question on the libav-user mailing list.
Lets see if could get a solution.
Thanks for your reply.
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If you haven't already, I'd try pulling the up-to-date source and building
that. AMD and intel CPUs differ, sometimes in strange ways, and a
local-built version is often better than any downloaded one.
Also, have you tried capturing the stream directly into a file and using
that for test?
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] ->
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
>It's actually ABR you're creating, if I understand correctly.
Not yet as I am actually outputting 3 multicast streams, each with a set
bitrate(1500/3500/6000). They will be captured on the other side of the network
and then muxed together to create the ABR stream (a design that, as of yet,
On Thu, Dec 13, 2018 at 3:40 PM Moritz Barsnick wrote:
> Hi Karen,
>
> On Thu, Dec 13, 2018 at 15:04:15 -0500, Karen Norton wrote:
>
> > I only see the error when opening the output files with MP4 Inspector
> > otherwise the files play fine (ex: in VLC) and show no issues in
> > mediainfo.
>
>
On Thu, Dec 13, 2018 at 20:49:56 +, James E. Baird wrote:
> It does need to be a CBR. It will be converted to an adaptive stream for a
> streaming app
It's actually ABR you're creating, if I understand correctly.
> I felt that I should get more horsepower as well and that is the main
>
Moritz,
>Does it need to be fixed bitrate? (Just wondering.)
It does need to be a CBR. It will be converted to an adaptive stream for a
streaming app
>Is this ultimately the issue? That you can't encode at real time?
These are live streams that need to be forwarded off, packaged in HLS and
Hi Karen,
On Thu, Dec 13, 2018 at 15:04:15 -0500, Karen Norton wrote:
> I only see the error when opening the output files with MP4 Inspector
> otherwise the files play fine (ex: in VLC) and show no issues in
> mediainfo.
So basically, it's not an issue at all, *except* for MP4 Inspector?
> I
On Thu, Dec 13, 2018 at 18:33:02 +, James E. Baird wrote:
> I spun up a new server running Ubuntu 18.04.1 LTS and installed
> FFMPEG version 7.3.4.4 which is the current supported version for
> Bionic Beaver.
Though I think that't not the issue, you should grab a much newer
version. You can
Carl,
Thanks for the suggestions so far. I suspect there is something in that command
that is causing the high CPU usage. Maybe there is a better way to structure
the command. I spun up a new server running Ubuntu 18.04.1 LTS and installed
FFMPEG version 7.3.4.4 which is the current supported
On 12/13/2018 9:12 AM, James E. Baird wrote:
ffprobe version git-2017-01-22-f1214ad Copyright (c) 2007-2017 the FFmpeg
developers
First thing- get a newer version (the latest, if possible) of ffmpeg and see
how that behaves. Best would to build from the latest source, but at least
something
On 12/13/2018 9:07 AM, Robert Krüger wrote:
Sorry, I have to take that back as I used the wrong file and got something
mixed up when looking at it. -probesize doesn't change the behaviour at
all. I set it to a value larger than the file and still got the warning and
the incorrect number. So for
Hi again,
On Thu, Dec 13, 2018 at 6:01 PM Robert Krüger
wrote:
> Hi Carl,
>
> On Thu, Dec 13, 2018 at 5:31 PM Carl Zwanzig wrote:
>
>> On 12/13/2018 8:10 AM, Robert Krüger wrote:
>> > Are there command line parameters to make it compute the exact size or
>> is
>> > this a design or
On 12/13/2018 8:51 AM, James E. Baird wrote:
Here is the command I am currently using but the CPU usage seems way to high
for what I am doing.
AMD Opteron(tm) Processor 6282 SE with 8 cores assigned to VM but all 8 are
pegged when running this.
Are they all pegged in compute or is there a
Hello,
I am trying to find the most efficient way to take a udp stream (Source OTA)
and transcode video to h.264, audio to AAC, output as 3 aligned cbr
(1500/3500/6000k) streams (udp), gop 2 (60 for 30FPS or 120 for 60FPS)
Here is the command I am currently using but the CPU usage seems way to
On 12/13/2018 8:10 AM, Robert Krüger wrote:
Are there command line parameters to make it compute the exact size or is
this a design or implementation limitation?
IIRC (and I could be wrong), the generic "info" uses metadata whereas
mediainfo actually counts frames and applies the frame rate
Hi,
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 is indeed exactly 30 minutes long but ffmpeg
-i
Hi,
Am 12.12.18 um 20:15 schrieb Carl Eugen Hoyos:
> (My answer wasn't wrong but your command line does not make
> much sense.)
>
> If your command succeeds (ie you ignore Hans' warning but still
> get a useful output file) the following will also work and has
> many advantages (apart from not
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] -> WebrtcEndpoint -> [Kurento] -> RtpEndpoint ->
[FFmpeg] -> RTMP ->
On 12/13/18, Kieran O'Leary wrote:
> Hi,
>
> I have encountered some DPX that has an fps of 18. It seems that ffmpeg
> skips every few frames when decoding - at least when I performed a framemd5
> analysis. I noticed that 30522 frames were decoded, 10172 were dropped.
>
> It seems that adding
Moritz Barsnick (2018-12-13):
> On Wed, Dec 12, 2018 at 21:43:02 +0100, Juan carlos Rebate wrote:
> > hello, how can you check the volume number of a file?, to change it
> > useful -filter "volume", but I do not know how to consult the original
> > volume thanks
> The filter "volumedetect" is what
Hi,
I have encountered some DPX that has an fps of 18. It seems that ffmpeg skips
every few frames when decoding - at least when I performed a framemd5 analysis.
I noticed that 30522 frames were decoded, 10172 were dropped.
It seems that adding -framerate 18 to as an input option resolves the
On Wed, Dec 12, 2018 at 21:43:02 +0100, Juan carlos Rebate wrote:
> hello, how can you check the volume number of a file?, to change it
> useful -filter "volume", but I do not know how to consult the original
> volume thanks
The filter "volumedetect" is what you are looking for.
Cheers,
Moritz
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