GstCodecParsers.AV1QuantizationParams¶

Fields¶

Name	Type	Access	Description
base_q_idx	`int`	r/w	indicates the base frame qindex. This is used for Y AC coefficients and as the base value for the other quantizers.
delta_q_present	`bool`	r/w	specifies whether quantizer index delta values are present in the bitstream.
delta_q_res	`int`	r/w	specifies the left shift which should be applied to decoded quantizer index delta values.
delta_q_u_ac	`int`	r/w	indicates the U AC quantizer relative to base_q_idx.
delta_q_u_dc	`int`	r/w	indicates the U DC quantizer relative to base_q_idx.
delta_q_v_ac	`int`	r/w	indicates the V AC quantizer relative to base_q_idx.
delta_q_v_dc	`int`	r/w	indicates the V DC quantizer relative to base_q_idx.
delta_q_y_dc	`int`	r/w	indicates the Y DC quantizer relative to base_q_idx.
diff_uv_delta	`bool`	r/w	equal to 1 indicates that the U and V delta quantizer values are coded separately. diff_uv_delta equal to 0 indicates that the U and V delta quantizer values share a common value.
qm_u	`int`	r/w	specifies the level in the quantizer matrix that should be used for chroma U plane decoding.
qm_v	`int`	r/w	specifies the level in the quantizer matrix that should be used for chroma V plane decoding.
qm_y	`int`	r/w	specifies the level in the quantizer matrix that should be used for luma plane decoding.
using_qmatrix	`bool`	r/w	specifies that the quantizer matrix will be used to compute quantizers.

None