daala_info (3) - Linux Man Pages

NAME

daala_info -

Configuration parameters for a codec instance.

SYNOPSIS


#include <codec.h>

Data Fields


unsigned char version_major

unsigned char version_minor

unsigned char version_sub

int32_t pic_width
pic_width,_height form a region of interest to encode
int32_t pic_height

uint32_t pixel_aspect_numerator

uint32_t pixel_aspect_denominator

uint32_t timebase_numerator

uint32_t timebase_denominator

uint32_t frame_duration

int keyframe_granule_shift
The amount to shift to extract the last keyframe number from the granule position.
int bitdepth_mode
bitdepth_mode is one of the three OD_BITDEPTH_MODE_X choices allowed above.
int full_precision_references
FPR must be on for high-depth, including lossless high-depth.
int nplanes

daala_plane_info plane_info [OD_NPLANES_MAX]

int keyframe_rate
key frame rate defined how often a key frame is emitted by encoder in number of frames.

Detailed Description

Configuration parameters for a codec instance.

Field Documentation

int daala_info::keyframe_granule_shift

The amount to shift to extract the last keyframe number from the granule position.

int daala_info::bitdepth_mode

bitdepth_mode is one of the three OD_BITDEPTH_MODE_X choices allowed above.

int daala_info::full_precision_references

FPR must be on for high-depth, including lossless high-depth. When FPR is on for 8-bit or 10-bit content, lossless frames are still stored in reference buffers (and input buffers) with 8 + OD_COEFF_SHIFT bit depth to allow streams with mixed lossy and lossless frames. Having a mix of reference buffers stored in 10-bit and 12-bit precisions would be a disaster, so we keep them all at 12-bit internally.

int daala_info::keyframe_rate

key frame rate defined how often a key frame is emitted by encoder in number of frames. So 10 means every 10th frame is a keyframe.

Author

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