Hi,
What would be the best way to test whether an rtmp stream is present?
I'm reading an rtmp stream as input and creating an mp4 as output.
But the stream isn't always present. I was thinking of doing a quick test
for stream presence, maybe reading 5 seconds of input as a test prior to
attempti
Hi,
I know almost nothing about audio filtering, and I wanted to better
understand more about it. I would like to filter out some low level
hum/noise from an mp4 file (h264/aac) and I understand there are different
types of filters, for example, a noise gate.
Can someone provide me with different
I’m going to answer my own question, below…
> On Oct 18, 2015, at 5:50 PM, Ricardo Kleemann wrote:
>
> Hi,
>
> I have two videos that I wanted to concat together. The end result is have
> the hls representation of the 2.
>
> I already have one video in hls format, wit
Hi,
I have two videos that I wanted to concat together. The end result is have the
hls representation of the 2.
I already have one video in hls format, with the m3u8 playlist file and all of
the ts files.
I wanted to append/concat a second video to the m3u8 playlist.
Is it possible to tell ff
On Wed, Sep 23, 2015 at 12:47 PM, Flávio Pontes
wrote:
> Hi,
>
> I need to stream the 2 inputs from a DeckLink Duo card in FHD.
> So far I could compile ffmpeg with decklink support and capture one input
> at a time without problems.
>
> When I try to capture from the 2 inputs I start getting the
I’ve noticed that when I send a stream to ffserver, it keeps updating the ffm
file if one already exists.
Is there a config such that the ffm starts anew when a new feed comes in?
Otherwise I guess I would have to delete the ffm file?
thanks
Ricardo
_
Hi,
I have ffserver and ffmpeg working together to produce HLS streaming files.
Basically ffserver has an flv stream, and an ffmpeg process reads the stream
and generates the HLS segments.
However, once the flv stream ends, ffmpeg doesn’t react to that by ending
“cleanly” on its own. I’m force
Hi,
I have very inconsistent results with doing live capture. Sometimes the
resulting file has perfect audio sync, but sometimes it doesn’t. I’ve tried
different combinations but the results are never consistent.
I am capturing video from a black magic design UltraStudio Mini Recorder and
the
Thanks
> On Aug 9, 2015, at 7:18 PM, Quinn Wood wrote:
>
> Alternatively you can edit the file in one operation if the desync can be
> fixed by adjusting the delay.
>
> *ffmpeg -i original.avi -itsoffset 0.2 -i original.avi -map 0:0 -map 1:1
> -acodec copy -vcodec copy **synced.avi*
>
I can t
> On Aug 9, 2015, at 7:12 PM, Quinn Wood wrote:
>
> On Aug 9, 2015 21:06, "Ricardo Kleemann" wrote:
>> Is it possible to extract each stream individually and produce a new mp4
> where the streams are synchronized?
>>
I’m just trying to generate a new mp4 f
Hi,
I have an mp4 file where the video and audio streams are out of sync. They
should be the same duration each but for some reason came out of sync.
Is it possible to extract each stream individually and produce a new mp4 where
the streams are synchronized?
thanks
Ricardo
Thanks everyone for the follow-ups. Does anyone know if SDL also works on
OSX, or what would be the equivalent?
On Mon, Aug 3, 2015 at 8:11 AM, MrNice wrote:
>
>
> On 03/08/15 14:35, Christian Ebert wrote:
> > * MrNice on Monday, August 03, 2015 at 12:06:20 +0100
> >> Obviously I don't have SDL
Hi Carl,
> On Aug 2, 2015, at 10:08 AM, Carl Eugen Hoyos wrote:
>
> Ricardo Kleemann americasnet.com> writes:
>
>> I know I can do more than one output but is it
>> possible to use ffplay in conjunction with that?
>>
>> I believe it’s possible to pip
0 -map
0:1 -map 1:0 out.mp4
So far things seem to be working ok
Ricardo
> On Jul 28, 2015, at 9:04 AM, Carl Eugen Hoyos wrote:
>
> Ricardo Kleemann americasnet.com> writes:
>
>> ffmpeg -f avfoundation -i "none:1" -f decklink -i
>
> You could try to move -
Hi,
I know I can do more than one output but is it possible to use ffplay in
conjunction with that?
I believe it’s possible to pipe ffmpeg output to ffplay, but what about doing
ffplay as well as streaming?
I’d like to use ffplay as a monitor of what I’m grabbing with ffmpeg, but then
also ne
Hi Carl,
> On Jul 26, 2015, at 9:57 AM, Carl Eugen Hoyos wrote:
>
> Ricardo Kleemann americasnet.com> writes:
>
>>> Does it work if you only record audio?
>>>
>>
>> I’m not sure where the crazy start time comes from,
>> but yes, the audi
> On Jul 26, 2015, at 3:28 AM, Carl Eugen Hoyos wrote:
>
> Ricardo Kleemann americasnet.com> writes:
>
>> Input #0, avfoundation, from 'none:1':
>> Duration: N/A, start: 28853.224036
>
>> Input #1, decklink, from 'UltraStudio Mini Record
Hi,
I’m not having much success mixing in audio from the default audio input with
the video. The video comes out fine but audio is basically inaudible with
intermittent a little bit of static.
I don’t know if I have the proper settings, I do know that if I don’t use the
async flag then the vid
/podcast.ulb.ac.be/>
>
> Téléphone : 02/650.29.26
> Email : arnaud.wi...@ulb.ac.be <mailto:arnaud.wi...@ulb.ac.be>
>
> Université libre de Bruxelles
> Campus du Solbosch - CP 160/26
> Avenue F.D. Roosevelt, 50 - 1050 Ixelles
>
>> Le 24 juin 2015 à 04:42, Ricardo Kleemann
Hi guys,
I’ve had the chance to try out all 16 modes…
> On Jun 24, 2015, at 10:04 AM, Ricardo Kleemann
> wrote:
>
> Thanks. I was thinking about that last night. With Flash Media Live Encoder,
> the only one that works is the 1920x1080 60fps. I guess I'll have to try
Podcast | Informaticien
> http://podcast.ulb.ac.be <http://podcast.ulb.ac.be/>
>
> Téléphone : 02/650.29.26
> Email : arnaud.wi...@ulb.ac.be <mailto:arnaud.wi...@ulb.ac.be>
>
> Université libre de Bruxelles
> Campus du Solbosch - CP 160/26
> Avenue F.D. Roosevelt, 50 - 10
rawvideo (UYVY / 0x59565955), uyvy422, 1920x1080, -5
kb/s, 30 tbr, 1000k tbn, 30 tbc
> Cheers,
> Arnaud.
>
> Arnaud WIJNS
> ULB Podcast | Informaticien
> http://podcast.ulb.ac.be <http://podcast.ulb.ac.be/>
>
> Téléphone : 02/650.29.26
> Email : arnaud.wi...@ulb.ac.be &
>
> Université libre de Bruxelles
> Campus du Solbosch - CP 160/26
> Avenue F.D. Roosevelt, 50 - 1050 Ixelles
>
> > Le 23 juin 2015 à 03:19, Ricardo Kleemann a
> écrit :
> >
> > Hello Arnaud,
> >
> > Thanks for the great suggestion, I will give it a t
- CP 160/26
Avenue F.D. Roosevelt, 50 - 1050 Ixelles
> Le 16 juin 2015 à 19:30, Ricardo Kleemann a écrit :
>
> On Tue, Jun 16, 2015 at 9:03 AM, Carl Eugen Hoyos wrote:
>
>> Ricardo Kleemann americasnet.com> writes:
>>
>>> I have a BlackMagic Design Ultrast
;
Thanks again!!
I’m sure I’ll soon be writing with more requests for assistance ;-)
Ricardo
> Cheers,
> Arnaud.
>
> Arnaud WIJNS
> ULB Podcast | Informaticien
> http://podcast.ulb.ac.be <http://podcast.ulb.ac.be/>
>
> Téléphone : 02/650.29.26
> Email : arnaud.wi
Hoyos wrote:
> Ricardo Kleemann americasnet.com> writes:
>
> > configuration:
>
> Unrelated:
> > --enable-postproc --enable-swscale
> > --enable-avfilter --enable-pthreads
>
> These options have no effect, please remove
> them to make debugging your configure
Hi Moritz
> On Jun 20, 2015, at 11:01 AM, Moritz Barsnick wrote:
>
> On Sat, Jun 20, 2015 at 09:56:13 -0700, Ricardo Kleemann wrote:
>> $ /usr/local/bin/ffmpeg -devices
>
> What does "-list_devices" show you now? Is the qtkit indev of any use
> to you? (I don&
Thank you for your feedback.
I apologize, I was building from a script and didn’t realize the option.
I will try again. :-)
Ricardo
> On Jun 20, 2015, at 4:12 AM, Moritz Barsnick wrote:
>
> Hi Ricardo,
>
> On Fri, Jun 19, 2015 at 18:52:02 -0700, Ricardo Kleemann wrote:
&
QTKit input device
E sdl SDL output device
> On Jun 20, 2015, at 4:12 AM, Moritz Barsnick wrote:
>
> Hi Ricardo,
>
> On Fri, Jun 19, 2015 at 18:52:02 -0700, Ricardo Kleemann wrote:
>> And tried the command -devices and I don’t understand the output.
Thanks for pointing that out… my bad!
I was using an existing script for compiling and didn’t notice the option, I’ll
rebuild and try again.
> On Jun 20, 2015, at 4:12 AM, Moritz Barsnick wrote:
>
> Hi Ricardo,
>
> On Fri, Jun 19, 2015 at 18:52:02 -0700, Ricardo Kleemann wrot
Hi,
I just built ffmpeg from snapshot. I am on a MacBook Pro, OS X 10.10.3
I tried using the -list_devices command but get an error:
$ /usr/local/bin/ffmpeg -f avfoundation -list_devices true -i ""
ffmpeg version N-73015-g8edc17b Copyright (c) 2000-2015 the FFmpeg developers
built with Apple L
On Tue, Jun 16, 2015 at 9:03 AM, Carl Eugen Hoyos wrote:
> Ricardo Kleemann americasnet.com> writes:
>
> > I have a BlackMagic Design Ultrastudio mini recorder
> > connected to macbook pro thunderbolt. But it seems
> > the only program that recognizes the device is FM
I want to feed ffserver but I’m not sure what program to use.
I have a BlackMagic Design Ultrastudio mini recorder connected to macbook pro
thunderbolt. But it seems the only program that recognizes the device is FMLE.
ffmpeg won’t list the video device if I run the list_devices (only shows the
Hi,
Anyone know if any of the "segment" (or hls) options used with ffmpeg can
be set for a Stream in ffserver.conf?
For example, hls_segment_filename, hls_time, etc...
I have a working hls file set of commands for ffmpeg but wanted to be able
to have ffserver produce a stream from that.
I've tr
I've been searching around the net found only a few examples but so far not
having much success.
My objective is to get a camera stream (available as input to ffmpeg as
m3u8) and feed it to ffserver, and play it out also as m3u8.
First, what I'm doing is simulating that by taking an mp4 file as i
Hello,
I've written a couple of messages last couple of days, and I'd say for now
ignore them.
I've been doing a lot of testing with many different configurations and
honestly I'm pretty lost on how to get this working...
I'm running a simple test... I'm simulating a live stream by reading a fil
er_name: DataHandler
encoder : Lavc56.35.101 libx264
Stream mapping:
Stream #0:1 -> #0:0 (aac (native) -> aac (libfdk_aac))
Stream #0:0 -> #0:1 (h264 (native) -> h264 (libx264))
On Sun, May 3, 2015 at 9:31 AM, Ricardo Kleemann
wrote:
> Hi,
>
> I'm
Hi,
I'm trying to feed a stream (mp4 file) to ffserver via ffmpeg, and trying
to access on ffserver and get the error:
Sun May 3 09:18:25 2015 127.0.0.1 - - [GET] "/feed1.ffm HTTP/1.1" 200 4175
Sun May 3 09:18:32 2015 [mp4 @ 0x24edf10]Tag avc1/0x31637661 incompatible
with output codec id '28' (
rtsp>
>
>
> > On Apr 25, 2015, at 3:35 PM, Ricardo Kleemann > wrote:
> >
> > That's what I mean, I guess I didn't express myself correctly
> >
> > I'd be running ffmpeg on a laptop and the intent is to access a stream on
> > the camera w
thony Griffiths wrote:
> On Sat, Apr 25, 2015 at 10:51 PM, Ricardo Kleemann
> > wrote:
> > Hi
> >
> > I'm having a hard time researching action cameras because none of the
> ones
> > with wifi mention much about streaming, other than ios/android apps.
> >
Hi
I'm having a hard time researching action cameras because none of the ones
with wifi mention much about streaming, other than ios/android apps.
I wanted to have ffmpeg access a live stream from a camera
I know it's possible to connect to a gopro to access http streaming. Does
anyone know of a
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