camera_h264avc_parameters

The list of supported video encoder parameters for H.264/AVC.

Synopsis:

#include <camera/camera_h264avc.h>

typedef enum {
      CAMERA_H264AVC_BITRATE = 0   
      CAMERA_H264AVC_KEYFRAMEINTERVAL   
      CAMERA_H264AVC_SLICETYPE   
      CAMERA_H264AVC_SLICESIZE   
      CAMERA_H264AVC_PROFILE   
      CAMERA_H264AVC_LEVEL   
      CAMERA_H264AVC_ENTROPYCODING   
      CAMERA_H264AVC_RATECONTROL   
      CAMERA_H264AVC_QPI   
      CAMERA_H264AVC_QPP   
      CAMERA_H264AVC_NUMPARAMETERS   
} camera_h264avc_parameters_t;

Since:

BlackBerry 10.2.0

Data:

CAMERA_H264AVC_BITRATE

The target bitrate or target average bitrate.

When the CAMERA_H264AVC_RATECONTROL parameter is set to CAMERA_H264AVC_RATECONTROL_CBR, this parameter represents the target bitrate of the encoded video.
When CAMERA_H264AVC_RATECONTROL parameter is set to CAMERA_H264AVC_RATECONTROL_VBR, this parameter represents the target average bitrate of the encoded video
When CAMERA_H264AVC_RATECONTROL parameter is set to CAMERA_H264AVC_RATECONTROL_NONE, this parameter is ignored.The units are in bits per second as an unsigned int value.

CAMERA_H264AVC_KEYFRAMEINTERVAL: The interval (in frames) between the generation of each keyframe as an unsigned int value.

CAMERA_H264AVC_SLICETYPE: The algorithm used to generate NAL slices.; The value must be set to a value from the camera_h264avc_slicetype_t enumerated type. This parameter can only be modified before you start to encode video.

CAMERA_H264AVC_SLICESIZE

The slice size as an unsigned int value.

Depending on the value you configured for CAMERA_H264AVC_SLICETYPE, the slice size is interpreted as follows:

CAMERA_H264AVC_SLICE_FRAME: The slice size is ignored.
CAMERA_H264AVC_SLICE_BYTES: The slice size represents the size of the slice in bytes.
CAMERA_H264AVC_SLICE_MACROBLOCKS: The slice size represents the size as a number of macroblocks. On some devices, this parameter can only be modified before you start encoding video.

CAMERA_H264AVC_PROFILE: The profile used to encode the video.; The value must be set to a value from camera_h264avc_profile_t. You can only modify this parameter before you start encoding video.

CAMERA_H264AVC_LEVEL: The level used to encode the video.; The value must be set to a value from camera_h264avc_level_t. You can only modify this parameter before you start encoding video.

CAMERA_H264AVC_ENTROPYCODING: The entropy coding method to use.; The value must be set to a value from camera_h264avc_entropycoding_t. You can only modify this parameter before you start encoding video.

CAMERA_H264AVC_RATECONTROL: The rate control method used for the encoding.; The value must be set to a value from camera_h264avc_ratecontrol_t. You can only modify this parameter before you start encoding video.

CAMERA_H264AVC_QPI: The Quantization Parameter (QP) that is used to encode key (I) frames when the CAMERA_H264AVC_RATECONTROL parameter is set to CAMERA_H264AVC_RATECONTROL_NONE.; For other rate control methods, this parameter has no impact. The value being set is an unsigned int value.

CAMERA_H264AVC_QPP: The Quantization Parameter (QP) that is used to encode inter (P) frames when the CAMERA_H264AVC_RATECONTROL parameter is set to CAMERA_H264AVC_RATECONTROL_NONE.; For other rate control methods, this parameter has no impact. The value being set is an unsigned int value.

CAMERA_H264AVC_NUMPARAMETERS: An end-of-list identifier.

Library:

libcamapi (For the qcc command, use the -l camapi option to link against this library)

Description:

Use these as parameters in parameter-value pairs that you pass as an argument list to video encoder configuration functions.