camera_h264avc_ratecontrol

The supported rate-control algorithms for H.264/AVC

Synopsis:

#include <camera/camera_h264avc.h>

typedef enum {
    CAMERA_H264AVC_RATECONTROL_NONE = 0,
    CAMERA_H264AVC_RATECONTROL_CBR,
    CAMERA_H264AVC_RATECONTROL_VBR
} camera_h264avc_ratecontrol_t;

Data:

CAMERA_H264AVC_RATECONTROL_NONE: No rate-control algorithm is used, therefore rate control is disabled (referred to as constant quality encoding).; Constant quality encoding means that the bitrate varies with the scene content but the quality stays constant.
CAMERA_H264AVC_RATECONTROL_CBR: Constant Bit Rate (CBR) encoding is used.; This control algorithm indicates that the bitrate remains constant while quality will vary. The bitrate that is maintained is specified by the CAMERA_H264AVC_BITRATE parameter.
CAMERA_H264AVC_RATECONTROL_VBR: Variable Bit Rate (VBR) encoding is used.; This control algorithm indicates that the average bitrate remains constant while quality may vary. The average bitrate that is maintained is specified by the CAMERA_H264AVC_BITRATE parameter.

Library:

libcamapi

Description:

These are the valid values for configuring the CAMERA_H264AVC_RATECONTROL parameter. Use camera_get_supported_videoencoder_parameter_values() to determine the supported values at runtime.