I was looking at this, it lists decode capability but not encode.
https://trac.ffmpeg.org/wiki/Hardware/QuickSync
As for putting text on the video, there's a library called OpenCV that lets
you put text on the video and do lots of other things. It probably would be
too much trouble though, since O
2019-01-31 21:06 GMT+01:00, Mahmood Naderan :
>>I believe if you want to use the cuda scaling filter you should also
>>use cuda decoding.
>
> The original cuda compatible run is
>
> ./ffmpeg -hwaccel cuvid -c:v h264_cuvid -i ../4k_normal.mp4 -vf
> scale_npp=1280:720 -c:v h264_nvenc 720p1.mp4
>
> I
>I believe if you want to use the cuda scaling filter you should also
>use cuda decoding.
The original cuda compatible run is
./ffmpeg -hwaccel cuvid -c:v h264_cuvid -i ../4k_normal.mp4 -vf
scale_npp=1280:720 -c:v h264_nvenc 720p1.mp4
I want to do that with multicore CPU. That command basically
2019-01-31 20:39 GMT+01:00, Mahmood Naderan :
> I want to run a multicore CPU job with ffmpeg and I think
> the command should be
>
> ./ffmpeg -i ../4k_normal.mp4 -vf scale_npp=1280:720 720p1.mp4
I believe if you want to use the cuda scaling filter you should also
use cuda decoding.
Carl Eugen
Hi,
I want to run a multicore CPU job with ffmpeg and I think the command
should be
./ffmpeg -i ../4k_normal.mp4 -vf scale_npp=1280:720 720p1.mp4
but it fails
./ffmpeg -i ../4k_normal.mp4 -vf scale_npp=1280:720 720p1.mp4
ffmpeg version N-93005-gd92f06eb66 Copyright (c) 2000-2019 the FFmpeg
dev
On Thu, Jan 31, 2019 at 13:18:53 +0100, NDJORE BORIS wrote:
> When I try to transcode some mp4 or avi videos, I have this error:
>
> [h264_vaapi @ 0x17cf500] A hardware frames reference is required to
> associate the encoding device.
> Cannot open video encoder for stream #1
You need to show us t
Hi Gyan,
Thanks a lot,
Seems to work as expected now :)
Alex Molon
-Original Message-
From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of Gyan
Sent: 31 January 2019 12:59
To: ffmpeg-user@ffmpeg.org
Subject: Re: [FFmpeg-user] filter_complex and map. Am i confused or b
In this case I used a "real life" scenario, picking up a live stream. The
result is the same:
Command executed:
ffmpeg -i udp://226.45.23.147:2001?fifo_size=100 -filter_complex
"[0:v]scale=720:576[vidout1];[0:v]scale=640:480[vidout2]" -c:v libx264 -c:a aac
-b:v:vidout1 2M -minrate:v:v
On 31-01-2019 06:11 PM, Alex Molon wrote:
-b:v:vidout1 2M -minrate:v:vidout1 2M -maxrate:v:vidout1 2M \ <- I specify that
[vidout1] has to be encoded in 2M/2M/2M
-b:v:vidout2 1M -minrate:v:vidout2 1M -maxrate:v:vidout2 1M \ <- I specify that
[vidout2] has to be encoded in 1M/1M/1M
Stream s
Hi Carl,
My problem actually is not the order itself, but how the single tracks are
actually encoded
The complete command is:
ffmpeg -i INPUTFILE -filter_complex
"[0:v]scale=720:576[vidout1];[0:v]scale=640:480[vidout2]" -c:v libx264 -c:a aac
-b:v:vidout1 2M -minrate:v:vidout1 2M -maxrate
2019-01-31 6:46 GMT+01:00, Carl Zwanzig :
> On 1/30/2019 12:23 PM, Carl Eugen Hoyos wrote:
>> this is not about the "signal" that is of
>> course interlaced for analog PAL but the content that
>> may of may not be interlaced (and the idet filter only
>> looks at the content and nothing in FFmpeg i
2019-01-31 13:41 GMT+01:00, Alex Molon :
> Basically I have a file with a single video track and a single audio track.
>
> What I want to achieve is:
>
>
>
> a) Scale the video track to 720x576 and encode it in H264 @ 2M with 2M
> minrate and 2M maxrate
>
> b) Scale the video track to 640x480 and
Hi guys,
What I'm trying to do, in theory, should be very simple but it seems that I
miss to understand about how ffmpeg routes different tracks.
Basically I have a file with a single video track and a single audio track.
What I want to achieve is:
a) Scale the video track to 720x576 and
Hello Team,
When I try to decode some mp4 or avi videos, I have this error:
[h264_vaapi @ 0x17cf500] A hardware frames reference is required to
associate the encoding device.
Can someone explain what it means or help me to fix it, please?
Regards
___
Hello Team,
When I try to transcode some mp4 or avi videos, I have this error:
[h264_vaapi @ 0x17cf500] A hardware frames reference is required to
associate the encoding device.
Cannot open video encoder for stream #1
Can someone explain what it means or help me to fix it, please?
Regards
__
excuse me, at first I did not read properly what you wrote
you look ,I delete the drawtext, and do not use c:v copy
but the cpu usage same with drawtext ~30%
ffmpeg -r 25 -rtsp_transport tcp -i
rtsp://admin:12341@192.168.2.25/Streaming/Channels/1 -c:v libx264 -b:v
2M -c:a copy -preset ultrafas
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