21:18
I need to create chunks of videos (.ts) of fixed duration (say 5 or 10 seconds) from a mp4 video. And also I need the chunks in different formats (260p, 480p, 720p, 1080p).
I'm able to create the chunks and m3u8 using the command below:
ffmpeg -i input.mp4 -g 60 -hls_time 10 out.m3u8
but not able to create for different resolutions as mentioned above.
21:03
I need to show two similar images from a webcam side-by-side.
I can achieve this with this piped command, but it runs with a few seconds latency:
ffmpeg -f dshow -i video="Logi C310 HD WebCam" -filter_complex "[0:v][0:v]hstack=inputs=2[v]" -map "[v]" -f matroska - | ffplay -
I'd prefer to do the same in just ffplay.
I'd also like to have the resulting image cropped to a square size or to the size of the original image (like if the picture from webcam gets divided by half and the halfs took each other places).
What I need in this end is a tool that (...)
20:01
I am receiving this warning from ffmpeg. The job runs and all the videos seem to output correctly. I have 2 hls, 1 mp4 with overlay + A single thumbnail.
The warning:
Stream #1:0: Video: png, rgba(pc), 500x38, 25 tbr, 25 tbn, 25 tbc
Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (360p.m3u
8) has not been used for any stream. The most likely reason is either wrong type
(e.g. a video option with no video streams) or that it is a private option of s
ome encoder which was not actually used for any stream.
The windows (...)
18:52
I'm trying to convert video to audio using ffmpeg in flutter based application but command is not working.
Is there something wrong with the command?
void convert(File pickedVideo) async
Directory applicationDocDirectory = await getApplicationDocumentsDirectory();
final outputPath = '$applicationDocDirectory.path/output-audio-$const Uuid().v1().mp3';
final session = await FFmpegKit.execute('-i $pickedVideo.path -vn -acodec mp3 $outputPath');
final returnCode = await session.getReturnCode();
(...)