Note

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venc demo

Venc_demo Introduction

Venc demo is mainly an example of video encoding module, with 4 different mode options:

• 0: H265 encoding of camera input data

• 1: JPEG encoding of camera input data

• 2: H264 encoding of camera input data, with OSD overlay

• 3: H265 encoding of camera input data, with OSD overlay, and drawing a border around the OSD edge

The encoded result can be saved as a file and exported to local for viewing with video player software.

Dependent Resources

Camera

Usage Instructions

mpp_demo Execution

After executing ./sample_venc.elf -h, the usage instructions of the demo are output, as follows:

Usage : ./sample_venc.elf [index] -o [filename]
index:
    0) H.265e.
    1) JPEG encode.
    2) OSD + H.264e.
    3) OSD + Border + H.265e.

sensor_index: see vicap doc

• index: 0-3, select mode

• filename: the name of the output file to save

Example:

./sample_venc.elf 3 -o out.265

View Results

The output file can be exported to local and viewed with video player software.

The following image is a frame captured from the video after running the command in the example above and saving the video, you can see an OSD icon overlaid in the upper left corner