Qcarcam Api Jun 2026

When working with QCarCam, developers typically interact with several layers of the Qualcomm automotive software stack :

qcarcam_stream_config_t stream_cfg; memset(&stream_cfg, 0, sizeof(stream_cfg)); qcarcam api

qcarcam_stream_t stream = .width = 1920, .height = 1080, .format = QCARCAM_PIX_FMT_NV12, .fps = 30, .num_buffers = 4 ; When working with QCarCam

The QCARCAM API (Qualcomm Camera API) is a proprietary, low-level interface that provides direct control over the Image Signal Processor (ISP) and camera subsystems on Qualcomm chipsets. Unlike generic V4L2 (Video for Linux) drivers, QCARCAM is optimized for performance, leveraging hardware acceleration for features like HDR, multi-camera synchronization, face detection, and real-time processing. qcarcam_stream_t stream = .width = 1920

| Feature | QCARCAM | V4L2 | Android Camera2 | |---------|---------|------|------------------| | | High (GMSL, HDR, sync) | Low | Medium | | Low-latency (<50ms) | Yes | Depends on driver | No (buffer queues) | | Raw sensor access | Full | Limited | No | | Multi-camera sync | Hardware-assisted | Software only | No | | OS support | QNX, Linux (Yocto) | Linux | Android only |