At 09:48 PM 1/29/2019 +0100, you wrote:
> My explanation is, that the original VHS was marked with copy
> protection, so the DVD recorder by legal reasons has to sustain the
> copy protection by creating an intentionally corrupted DVD file
> system (which is not readable from a computer) and
Hi Carl Eugen,
thanks again for your patience.
Am 29.01.19 um 04:58 schrieb Carl Eugen Hoyos:
>
> (So apparently the next sentence is wrong and Lou
> does offer release support - but unfortunately only
> to you because he closed ticket #7697 this week
> explaining there is no release support...)
2019-01-29 21:48 GMT+01:00, Moritz Barsnick :
> Moin Ulf,
>
> On Tue, Jan 29, 2019 at 20:50:25 +0100, Ulf Zibis wrote:
>
>> My understanding is, that a VHS cassette player always provides a fully
>> interlaced analogue stream (50 half-frames per sec. for PAL).
>
> Originally coming from the analog
On 1/29/2019 1:16 PM, Eric Wilde wrote:
My understanding of at least one VHS protection scheme was to record
the video with the horizontal/vertical sync pulses set very low to the
threshold for detection. The idea was that, if you made a copy, which
was lossy, the copy would not have detectable
2019-01-29 20:50 GMT+01:00, Ulf Zibis :
> If you want I could upload a 6 min. chunk with 300 MB.
Just post a link, there are issues with 10G samples
(that could not easily be made smaller).
Carl Eugen
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Moin Ulf,
On Tue, Jan 29, 2019 at 20:50:25 +0100, Ulf Zibis wrote:
> My understanding is, that a VHS cassette player always provides a fully
> interlaced analogue stream (50 half-frames per sec. for PAL).
Originally coming from the analog world, I can confirm that this is
true.
> With this a
Hi,
I'd like to send the analog audio as video with waveform superimposed, I
did this so far:
ffmpeg -f alsa -i hw:0,0 -f lavfi -i nullsrc -filter_complex
"[0:a]showwaves=mode=line:s=hd480:colors=Red[v]" -map "[v]" -map 0:a
-pix_fmt yuv420p -b:a 360k -r:a 44100 http://localhost:5554/video.ffm
Ok, I didn't know that. I guess it must be the encoding to h264 that the
GPU is helping with.
On Mon, Jan 28, 2019 at 11:23 PM Carl Eugen Hoyos
wrote:
> 2019-01-29 0:06 GMT+01:00, Michael Shaffer :
> > Hi, we are also streaming a Hikvision cctv camera to youtube. We're not
> > putting text on
Slight modification does not work either:
ffmpeg -f lavfi -i nullsrc -f alsa -i hw:0,0 -filter_complex
"[0:a]showwaves=s=1280x720:mode=line:colors=Blue[v]" -map "[v]" -map 0:a
-c:v libx264 -r 15 http://localhost:5554/video.ffm
error:
Stream specifier ':a' in filtergraph description
I'm using the -timecode option to set the output starting timecode, but I
was hoping to enforce a 24 hour max, so that if I set a value of
23:59:59:00, it will round back to 00:00:00:00 after a second of timecode.
I can see that in my output mov file, the timecode continues to 24:00:00:00
and past
Am 29.01.19 um 02:31 schrieb Ulf Zibis:
> Am 29.01.19 um 01:32 schrieb Moritz Barsnick:
>> On Mon, Jan 28, 2019 at 22:52:38 +0100, Ulf Zibis wrote:
LEDs and LCDs would give you headaches if they displayed alternating
lines, as the "afterglow" effect of CRTs, retaining the line's
Hello,
How can we use ffmpeg to transcode SD channels of resolution 720*576 to HD
format .
So we can obtain best picture qualtiy for live streaming , wihtout
interlace and frame drops .
I am using ubuntu server and have compile ffmpeg on it . please advise on
SD to HD conversion .
Moin Moritz,
Am 29.01.19 um 21:48 schrieb Moritz Barsnick:
>> My explanation is, that the original VHS was marked with copy
>> protection, so the DVD recorder by legal reasons has to sustain the
>> copy protection by creating an intentionally corrupted DVD file
>> system (which is not readable
From: ffmpeg-user [ffmpeg-user-boun...@ffmpeg.org] on behalf of Matthew Reus
[matthew.reu...@gmail.com]
Sent: Tuesday, January 29, 2019 7:32 PM
To: ffmpeg-user@ffmpeg.org
Subject: [FFmpeg-user] SD channels to HD
Hello,
How can we use ffmpeg to transcode SD channels of resolution 720*576 to HD
Hi Carl Eugen,
Am 29.01.19 um 22:14 schrieb Carl Eugen Hoyos:
>
> Are you both sure that the DVD recorder is able to record something
> from analog signal that can be de-interlaced? I am curious...
Do you ask if it is possible/thinkable, that the resulting DVD contains
an already de-interlaced
but quality is highly degraded , interlaced how can we manage on this case
On Wed, Jan 30, 2019 at 6:34 AM Jimmy Asher
wrote:
>
> From: ffmpeg-user [ffmpeg-user-boun...@ffmpeg.org] on behalf of Matthew
> Reus [matthew.reu...@gmail.com]
> Sent: Tuesday, January 29, 2019 7:32 PM
> To:
so I try lot of ffmpeg switch
ffmpeg -r 25 -rtsp_transport tcp -i
rtsp://admin:1234@192.168.2.25/Streaming/Channels/1 -c:v libx264 -b:v 2M
-c:a copy -vf "[in]drawtext=fontfile='C\:\\Windows\\Fonts\\cour.ttf':
textfile='Z\:\\k\\v\\T_A\\P.txt': x=180: y=30: reload=1:
fontcolor=black:
On Tue, Jan 29, 2019 at 07:18:21 +0100, Zoltan Kerenyi Nagy wrote:
> $ ... -f wav pipe:3 -f wav pipe:4 3>fifo1 4>fifo2
>
> That's impossible since:
> pipe:1 stdout
> pipe:2: sterr
> pipe:0 stdin
That's not impossible. File descriptors 0, 1, 2 are predefined by the
operating system. A process
I tried your version without -y. I will try it later today thanks though.
On 2019. Jan 29., Tue at 10:06, Moritz Barsnick wrote:
> On Tue, Jan 29, 2019 at 07:18:21 +0100, Zoltan Kerenyi Nagy wrote:
> > $ ... -f wav pipe:3 -f wav pipe:4 3>fifo1 4>fifo2
> >
> > That's impossible since:
> >
On 29-01-2019 03:35 PM, Gabriele Greco wrote:
I've some hundreds of broken h264 mp4s that have been encoded with nvenc
ffmpeg encoder with conflicting options (-vprofile baseline -bf3), these
files pretends to be baseline but they really have some B frames inside,
but those B frames are marked
I've some hundreds of broken h264 mp4s that have been encoded with nvenc
ffmpeg encoder with conflicting options (-vprofile baseline -bf3), these
files pretends to be baseline but they really have some B frames inside,
but those B frames are marked by the container as P, so that VLC and ffmpeg
Il giorno mar 29 gen 2019 alle ore 11:59 Gyan ha scritto:
> > - P - P - P - P - I ... but they are really I - B - B - B - B - B - B -
> I -
> > B - B - B - B - B - B - I ...
>
> Can't reproduce. With ffprobe on your sample, I get
>
> I B B B P B B B P B B B P ...
>
>
That's interesting:
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