Tbc | API non-officielle TBC | REST library

I created a live stream session on instafeed.me then used ffmpeg to send an MP4 file to the stream. But I get IO error.

The command is

I am trying to stream live to Facebook with the following settings:

I have a shiny app with this basic layout that I wrote on my desktop computer where it fits the screen perfectly. However, when running the app on my notebook it'll only show the top left boxes- so the app is way to big for the screen. Upon pressing Ctrl - it will obviously become smaller but still about a quarter of the bottom row is cut off and pressing Ctrl - again the app only fills half the screen. Now I want to provide this app as a feedback tool for my study participants and it's safe to assume they will access it from different sized screens aswell. So I was wondering if there was any way to automatically adjust the box sizes to the size of the screen, no matter its size. I came up with the idea that maybe the mistake was setting the box heights to a fixed value (i.e. height = 300), but my attempt of changing it to 30% revealed that that's not a thing you can do. I read over some CSS-related questions on this site aswell but didn't find anything that worked here either (I know very little CSS though, so I might have missed something there). Does anyone have an idea how to fix that issue?

I'm trying to add rotation metadata to the video recorded from RTSP stream. All works fine until I try to run recording with segment format. My command looks like this:

I'm having regularly issue with hvc1 videos getting an inconsistent number of frames between ffprobe info and FFmpeg info, and I would like to know what could be the reason for this issue and how if it's possible to solve it without re-encoding the video.

I wrote the following sample script with a test video I have

I split the video into 5-sec segments and I get ffprobe giving the expected video length but FFmpeg gave 3 frames less than expected on every segment but the first one.

The issue is exactly the same if I split by 10 seconds or any split, I always lose 3 frames.

I noted that the first segment is always 3 frames smaller (on ffprobe) than the other ones and it's the only consistent one.

Here is an example script I wrote to test this issue :

I'm trying to convert a 7200x3600 60fps h265 video using my RTX 3080 to the h264 codec because of some compatibility issue with VR.

This command line result in "No NVENC capable devices found" error:

I am trying to write a program to generate frames to be encoded via ffmpeg/libav into an mp4 file with a single h264 stream. I found these two examples and am sort of trying to merge them together to make what I want: [video transcoder] [raw MPEG1 encoder]

I have been able to get video output (green circle changing size), but no matter how I set the PTS values of the frames or what time_base I specify in the AVCodecContext or AVStream, I'm getting frame rates of about 7000-15000 instead of 60, resulting in a video file that lasts 70ms instead of 1000 frames / 60 fps = 166 seconds. Every time I change some of my code, the frame rate changes a little bit, almost as if it's reading from uninitialized memory. Other references to an issue like this on StackOverflow seem to be related to incorrectly set PTS values; however, I've tried printing out all the PTS, DTS, and time base values I can find and they all seem normal. Here's my proof-of-concept code (with the error catching stuff around the libav calls removed for clarity):

So,here I want to take first 3 character(only alphabets/no) from column 1 and first 4 character(only alphabets/no) from column 2 and first 5 digits from column3a,column3b,column3c and column3d(whichever is present) and make an array of them like in desired output column given below.Condition is that I need to remove any kind of special characters like .,-,' etc and spaces and take only alphabetical and numerical characters.Also output should be NaN if any one of column1,2 or 3 is not present.(If both 1 and 2 present and 1 from column 3 is present then output should come.

I'm trying to publish a video using ffmpeg. For publishing, I'm using python frame images as the input source. But when it streams, the video colours are different.