SVO2 Recording Size

Software
1

Subject: SVO2 Recording Size and Parameters on Jetson Orin with GMSL2

Dear Stereolabs Support Team,

I am using a Jetson Orin 64GB device connected via GMSL2 to record SVO2 files. Below is the recording setup I used:

InitParameters init_params;
init_params.input.setFromSerialNumber(serial.c_str());
init_params.camera_resolution = RESOLUTION::HD1200;
init_params.camera_fps = 15;
init_params.depth_mode = DEPTH_MODE::NEURAL;
init_params.svo_real_time_mode = true;

RecordingParameters rec_params;
rec_params.compression_mode = SVO_COMPRESSION_MODE::H264_LOSSLESS;
rec_params.target_framerate = 15;
rec_params.transcode_streaming_input = true;

After recording for 1 hour per camera, the resulting SVO2 file size is only around 8GB, which seems smaller than expected. Is this normal for H264_LOSSLESS mode?

Also, when I inspect the SVO file using ZED_SVO_Editor -inf, it shows the compression mode as H264_LOSSLESS, which appears correct.

In this mode, is it correct that the bitrate parameter does not need to be explicitly set?
Are there any parameters I might be missing that could affect recording quality or file size?

Thank you for your assistance.

2

Hello Ham Seongho,

Thank you for reaching us. We are trying to reproduce your issue.
In the meantime, could you please run ZED_Diagnostic tool, save the generated json and send it to us to know more about your setup ?

I saw your recording setup, did you do something similar to this sample (https://github.com/stereolabs/zed-sdk/blob/master/recording/recording/mono/cpp/src/main.cpp) for the rest of your script ?

Best regards,

Stereolabs Support