WYZE camera RTSP with MjpegSnapshotsMaker Issues

[Chedberg84]

Describe the bug This isn't so much a bug as it is a question. I'm using a WYZE camera with RTSP setup. What I'm trying to accomplish is saving an image off of the stream to a file. When I run the MjpecSnapShotsMaker code, a file is never saved. I think this is due to the type of frame that is being picked up. The code is exiting here:

if (!(frame is RawJpegFrame)) return;

and I believe it's because the type of frame being picked up is either RawH264IFrame or RawH264PFrame. Do you have any suggestions on how to make this work? I probably just don't understand something because I'm trying to do this as a hobby project.

To Reproduce

1. Setup WYZE camera RTSP stream
2. Run MjpecSnapShotsmaker code here: https://github.com/BogdanovKirill/RtspClientSharp/blob/master/Examples/MjpegSnapshotsMaker/Program.cs

Expected behavior Take a RTSP stream and save images off of it to disk.

Desktop (please complete the following information):

• OS: Windows 10

[BogdanovKirill]

Hello!

Thank you for your question. MjpegSnapshotsMaker is simple program which could work only with JPEG frames from camera. In case of H264 you need to re-encode video to JPEG format. It means that all H264 frames should be decoded and some of them (or even all) must be encoded to JPEG

[BogdanovKirill]

Any news? Could you change video format to JPEG on that camera?

[Chedberg84]

Just following up, I don't think a WYZE cam supports JPEG frames. Looks like i'm going to have to find a way to decode a H264 stream and then capture individual frames from the decoded data. Any ideas on that would be great.

[Chedberg84]

Hi @BogdanovKirill

I pulled down the working branch from https://github.com/inzi/rtspcapture and it worked with my camera! Super excited about that. I don't know if there is any way you can incorporate some of that code into your examples for capturing an image off of a H264 stream? The repository doesn't have a license on it so I've added an issue for inzi to please add one, like MIT would be ideal.

Now, the inzi code is dotnet framework, and I think next I'd like to try to convert it to a dotnet core project. Any thoughts on that?

[BogdanovKirill]

Hello,

You could take my commit https://github.com/inzi/rtspcapture/commit/bdfaea3eff8cd286082814e9f1e820a93e98aa41 and use it under MIT.

[Chedberg84]

When I pull your commit and try to build locally I get the following error.

"cannot open file avcodec.lib"

[Chedberg84]

Do you see the same error when pulling down your commit? I'm building with Visual Studio 2017 on Windows 10. It's failing to build the libffmpeghelper project.

[BogdanovKirill]

Please just get some changes from this commit manually and try to use latest code in by master brunch.