Hi everyone!
Is it possible to ask/force FFmpeg to keep as many metadata fields as
technically possible when transcoding or rewrapping?
I understand that not all (container-)formats support the same metadata
fields, but I've noticed for example that when rewrapping, not all
metadata fields t
On Wed, 18 Mar 2020, Carl Eugen Hoyos wrote:
Am Di., 17. März 2020 um 00:38 Uhr schrieb Hans Carlson :
Can anyone explain to me why this displays only the yellow bar with
everything else black:
ffplay -f lavfi -i 'smptehdbars=duration=5' -vf
"colorhold=color=0xbcc906:similarity=0.25,chrom
Am Di., 17. März 2020 um 00:38 Uhr schrieb Hans Carlson :
>
> Can anyone explain to me why this displays only the yellow bar with
> everything else black:
>
>ffplay -f lavfi -i 'smptehdbars=duration=5' -vf
> "colorhold=color=0xbcc906:similarity=0.25,chromakey=color=black:similarity=.2"
>
> but
On Tue, 17 Mar 2020, Ted Park wrote:
Sorry I wasn’t clear, that is not what I meant at all and in fact I am
surprised that produced results that you describe as “sort of works.”
I’m kind of curious, is the material something you could share?
I came up with an example I think might illustrate
On 3/17/20, Carl Eugen Hoyos wrote:
> Am Di., 17. März 2020 um 22:04 Uhr schrieb Ted Park
> :
>
>> > nothing in FFmpeg is (by itself) a videoconferencing software.
>>
>> Ah, right thank you, I couldn’t think of the word “videoconferencing,” was
>> on the tip of my tongue (or fingers).
>
> I found
Am Di., 17. März 2020 um 22:04 Uhr schrieb Ted Park :
> > nothing in FFmpeg is (by itself) a videoconferencing software.
>
> Ah, right thank you, I couldn’t think of the word “videoconferencing,” was on
> the tip of my tongue (or fingers).
I found it in the English Wikipedia googling for H323.
Hi,
> nothing in FFmpeg is (by itself) a videoconferencing software.
Ah, right thank you, I couldn’t think of the word “videoconferencing,” was on
the tip of my tongue (or fingers).
It makes it easier to explain the context as an analogy to regular telephone,
which happens to be described by,
aftering adding -threads 1 in the cmd, IT WORKS.
thanks.
penguin flying 于2020年3月17日周二 下午11:25写道：
> but if we DID NOT add qscale, we can get one picture after sending one
> frame the the encoder at the same time; even if the src file having B frames
>
>
>
> Carl Eugen Hoyos 于2020年3月17日周二 下午11:
Am Di., 17. März 2020 um 16:20 Uhr schrieb Simon Brown
:
>
> >
> >
> > Hi,
> >
> > > Is it possible for ffmpeg to produce a stream conforming to H.323? As I
> > > understand it H.323 supports H.264 video and G.711 or OPUS audio. I have
> > > an H.264 video stream, so would need to re-encode the a
but if we DID NOT add qscale, we can get one picture after sending one
frame the the encoder at the same time; even if the src file having B frames
Carl Eugen Hoyos 于2020年3月17日周二 下午11:13写道：
> Am Di., 17. März 2020 um 16:04 Uhr schrieb penguin flying
> :
> >
> > using this cmd
> > ffmpeg -i in
>
>
> Hi,
>
> > Is it possible for ffmpeg to produce a stream conforming to H.323? As I
> > understand it H.323 supports H.264 video and G.711 or OPUS audio. I have
> > an H.264 video stream, so would need to re-encode the audio, but then it
> > needs packaging as H.323 and I haven't found anythi
Am Di., 17. März 2020 um 16:04 Uhr schrieb penguin flying
:
>
> using this cmd
> ffmpeg -i in.mp4 -copyts -f image2 -vframes 5 -y %03d.jpg
> will decode one frame and then encode it to one jpg at the same time,
> AND the picture will be encoded in default quality.
>
> BUT when I want to improve
using this cmd
ffmpeg -i in.mp4 -copyts -f image2 -vframes 5 -y %03d.jpg
will decode one frame and then encode it to one jpg at the same time,
AND the picture will be encoded in default quality.
BUT when I want to improve the quality of the image after adding the param
"qscale",
ffmpeg -i in.mp
Hi,
> Is it possible for ffmpeg to produce a stream conforming to H.323? As I
> understand it H.323 supports H.264 video and G.711 or OPUS audio. I have
> an H.264 video stream, so would need to re-encode the audio, but then it
> needs packaging as H.323 and I haven't found anything on the web t
Hi,
Is it possible for ffmpeg to produce a stream conforming to H.323? As I
understand it H.323 supports H.264 video and G.711 or OPUS audio. I have
an H.264 video stream, so would need to re-encode the audio, but then it
needs packaging as H.323 and I haven't found anything on the web that does
hi,
Yes, if I use filters and scaling means again it will take lots of
memory.
Without any type of trans coding also it taking available memory .
I need to stream Live data, so If I start another streamer again
memory will increases rapidly [For 1 hour it almost taken 50MB of memor
Hi,
So it starts out like this:
> top - 11:02:19 up 16:48, 3 users, load average: 0.04, 0.01, 0.00
> KiB Mem : 16423264 total, 14990164 free, 642272 used, 790828 buff/cache
> KiB Swap: 999420 total, 999420 free,0 used. 15408016 avail Mem
>
> PID USER PR NIVIRTRES
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