Hi,
I have one question about ffmpeg transcoding:
Does ffmpeg support changing resolution transcoding?
For example, I have one fmp4/mp4 file that consists of two part, where 1st part
is of 1280x720, and 2nd part is of 640x480. Does ffmpeg have the capacity such
that ffmpeg can transcode 1st
What kind of response is that? I'm obviously trying to install libaom, that's
why I'm here in what is apparently the only official FFmpeg avenue and asking
for help with it. Did you actually read my questions?
From: ffmpeg-user on behalf of James Darnley
Sent:
On 3/14/2019 2:30 PM, wolfe.t.glenn wrote:
@ Carl - sure, but I do not think you understand my question.
I'm not sure you understand HTTP; how do you _send_ http without it being
_requested_? AFAIK, one end has to request the data and thus open the
stream. Generally setting an IP of 0.0.0.0 i
2019-03-14 19:04 GMT+01:00, Lars Michaelis :
> Hi,
>
> I'm creating a mp4 file from several images by following ffmpeg call.
>
> ffmpeg.exe -y -framerate 25 -i img_%08d.png -vcodec libx264 -pix_fmt
> yuv420p -preset veryslow -crf 25 out.mp4
Complete, uncut console output missing.
> Each imag
@ Carl - sure, but I do not think you understand my question.
HTTP uses TCP, yes. But I am saying that I want the output stream to be
encapsulated in L7 packets rather than still sent over L4.
I am not asking about lower level transport. I simply need HTTP
encapsulation.
While the FFmpeg protoco
I am trying to send FFmpeg output over HTTP stream to a web server backend.
The FFmpeg client is sitting behind a NAT so I need to stream outbound to
server, rather than have server request stream.
So far, while testing on my local network I am using these commands, which
works, but uses TCP rath
On 2019-03-14 17:50, Hashim Aziz wrote:
> ERROR: aom >= 1.0.0 not found using pkg-config
What is ambiguous about this message? Either install libaom or don't
enable it.
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Hi,
I'm creating a mp4 file from several images by following ffmpeg call.
ffmpeg.exe -y -framerate 25 -i img_%08d.png -vcodec libx264 -pix_fmt
yuv420p -preset veryslow -crf 25 out.mp4
Each image displays a timestamp in milliseconds(for output framerate =
25 fps).
img_.png => 0
> Am 14.03.2019 um 15:45 schrieb Enrico Vittorini :
>
> i tried the showinfo but h264 timeode is not shown.
Command line including complete, uncut console output missing.
Your sample may be needed, too.
Please do not top-post here, Carl Eugen
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> Am 14.03.2019 um 16:21 schrieb wolfe.t.glenn :
>
> Even when I run this command:
>
> `ffmpeg -re -i hq-video.mp4 -c:v libx264 -an -s 1280x720 -f h264
> http://my-server/push`
>
> It is still sending the data only over *TCP*. Why is this the case??
Because while http does not strictly requir
Even when I run this command:
`ffmpeg -re -i hq-video.mp4 -c:v libx264 -an -s 1280x720 -f h264
http://my-server/push`
It is still sending the data only over *TCP*. Why is this the case??
How can I just get FFmpeg to send the data over *HTTP*??
On Thu, Mar 14, 2019 at 3:57 AM Carl Eugen Hoyos
i tried the showinfo but h264 timeode is not shown. checking the doc
https://www.ffmpeg.org/ffmpeg-all.html#showinfo
i did not find anything related to timecode
any clue?
From: Enrico Vittorini
Sent: Thursday, March 14, 2019 9:07 AM
To: FFmpeg user questions
Sub
Am 12.03.19 um 05:45 schrieb Gyan:
>
> No, in here:
>
> static const AVFilterPad fillborders_inputs[] = {
> {
> .name = "default",
> .type = AVMEDIA_TYPE_VIDEO,
> .config_props = config_input,
> .filter_frame = filter_frame,
> .ne
Hi
The simplified command is:
ffmpeg -hwaccel qsv -c:v h264_qsv -i football_avc_600p_24fps_1000k.flv -an -c:v
h264_qsv -r 15/1 -vb 100 -minrate 100 -maxrate 150 -bufsize 200
-preset fast -profile:v main \
-vf "vpp_qsv, pad='1280:720:128:64'" -f flv
football_avc_600p_24fps_1000k
2019-03-14 6:51 GMT+01:00, Glenn W :
> I need to SEND h264 packets efficiently as possible, and
> over HTTP.
Then why don't you send AnnexB? It seems hard to believe
that it has more overhead than rtsp...
> I don't understand why this should not be possible, as FFmpeg
> can use RTSP protocol to r
2019-03-14 8:04 GMT+01:00, Enrico Vittorini :
> i see that version 4.1 support "S12M timecode decoding in h264".
> Can someone explain me how to use it wiht a TS input file?
The showinfo filter should display the timecode.
Carl Eugen
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Hello guys,
i see that version 4.1 support "S12M timecode decoding in h264". Can someone
explain me how to use it wiht a TS input file?
Is it possible to play a TS with ffplay and show the timecode in overlay?
thanks!
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