VideoFileWriter video quality issue

[rbryan167]

• question
• bug report
• feature request

Hi! We are creating videos out of different numbers of videos, the frame rate and bit rate are changeable by the user but that is the default value. My issue is that we are using the 3.3 version before, which has a fix bit rate bug, but the quality of the video is acceptable, a bit grainy though. But after the update, even if we set the bit rate to 1500000, the quality is still pixelated and sometime blurry.

using (var vFWriter = new VideoFileWriter())
{
vFWriter.Open( path to image , 1080, 1960, 10, VideoCodec.H264, 800000);
}

the video resoltion is fixed to 1080x1960
the images that we are processing also have the same size.

Any help is appreciated.

[cesarsouza]

Hi @rbryan167,

I know this may be a bit late for you, but I wanted to say that most issues related to FFmpeg will be addressed in the next release. Among other things, users will be able to specify parameters to the h264 encoder directly such as the CRF, preset, and tune options.

A variety of other lossless encodings will be available as well.

I will update this issue once a pre-release is available on NuGet.

Regards,
Cesar

[cesarsouza]

A new (pre-release) version of Accord.Video.FFMPEG has just been pushed to NuGet. If it helps solving the issue (and if it isn't too late for you of course, as I realize it has been some time since the issue was first opened), please let me know!

Regards,
Cesar