Re: [FFmpeg-user] failed to export timecodes from the mp4 file

On Jan 15, 2021, at 4:03 PM, Vladimir Bogdanov via ffmpeg-user wrote: Dear ffmpeg experts, I have a very basic question about the timestamps of MP4 files. Forour biomedical research project we need so extract the timecode for every frameform several mp4 videos in order to synchronize them.

Re: [FFmpeg-user] Compiling FFmpeg with Nvidia GPU acceleration

On 1/15/2021 10:49 AM, madderek--- via ffmpeg-user wrote: I cannot get the 'make' command to work - I get 'make' is not recognized as an internal or external command, operable program or batch file. Well install make (nvidia's instructions include that). What's your intended build envir

[FFmpeg-user] failed to export timecodes from the mp4 file

Dear ffmpeg experts, I have a very basic question about the timestamps of MP4 files. Forour biomedical research project we need so extract the timecode for every frameform several mp4 videos in order to synchronize them. Could you please kindlyhelp to find the right command? I tried ffmpeg.exe

[FFmpeg-user] Compiling FFmpeg with Nvidia GPU acceleration

Hi I'm using Using FFmpeg with NVIDIA GPU Hardware Acceleration :: NVIDIA Video Codec SDK Documentation for Windows 10 All goes well until I hit the last three commands: * Goto nv-codec-heade

[FFmpeg-user] Compile ffmpeg and error on nvcc

I compile ffmpeg for use cuda. My gpu is Geforce GTX 660 and i have installed driver and cuda from site nvidia (no repositoty of debian). # /usr/local/cuda/samples/bin/x86_64/linux/release/deviceQuery Starting...  CUDA Device Query (Runtime API) version (CUDART static linking) Detected 1 CUD

[FFmpeg-user] Use of -hls_flags iframes_only results in incorrect #EXT-X-VERSION value

Hello, I'm trying to generate Apple mediastreamvalidator compliant HLS using ffmpeg and have very nearly achieved that. The only remaining problem is that use of " -hls_flags iframes_only" correctly adds the #EXT-X-I-FRAMES-ONLY tag to my trickplay m3u8 but it doesn't increment the #EXT-X-VERSION

Re: [FFmpeg-user] Compiling FFMpeg

> > > > where is the problem doing simply copy&paste? > ./configure > > > None - thank you. I copied to file and then input from file to ./configure in the end. But it's the obvious answer. Thanks for replying. ___ ffmpeg-user mailing list ffmpeg-user

Re: [FFmpeg-user] Compiling FFMpeg

Am 15.01.21 um 11:01 schrieb Simon Brown: I want to compile the latest git head on my Raspberry pi. The Pi comes with a packaged version of ffmpeg with a huge config list of what is and isn't enabled. Is there a simple way of using this config for the ./configure stage so that I don't have to

[FFmpeg-user] Compiling FFMpeg

I want to compile the latest git head on my Raspberry pi. The Pi comes with a packaged version of ffmpeg with a huge config list of what is and isn't enabled. Is there a simple way of using this config for the ./configure stage so that I don't have to type the whole lot in? Cheers, Simon ___

Re: [FFmpeg-user] Decklink input extra filter inserted

Command: ffmpeg -f decklink -i decklink1 -map 0:v -vf "hwupload_cuda,scale_npp=format=yuv444p,yadif_cuda,scale_npp=w=1280:h=720:interp_algo=lanczos:format=yuv420p" -b:v 1k -vcodec h264_nvenc -delay 0 -preset llhq -g 5 -r 25 -map 0:a -c:a:0 aac -loglevel debug -f tee "[f=hls: hls_segment_type=f

[FFmpeg-user] ffmpeg rtmp stream breaks after Delay between the first packet and last packet

I'll update this question ffmpeg -version ```shell ffmpeg -version ffmpeg version 4.3.1-4ubuntu1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 10 (Ubuntu 10.2.0-9ubuntu2) ``` I run this command to use ffmpeg to stream to youtube ; ```shell ffmpeg -y -threads 12 \ -loop 1 -framerat