GstCodecs.Vp9FrameHeader¶
Fields¶
Name |
Type |
Access |
Description |
---|---|---|---|
allow_high_precision_mv |
r/w |
equal to 0 specifies that motion vectors are specified to quarter pel precision |
|
bit_depth |
r/w |
encoded bit depth |
|
color_range |
r/w |
specifies the black level and range of the luma and chroma signals |
|
color_space |
r/w |
specifies the color space of the stream |
|
delta_probabilities |
r/w |
Modification to the probabilities encoded in the bitstream. |
|
error_resilient_mode |
r/w |
equal to 1 indicates that error resilient mode is enabled |
|
frame_context_idx |
r/w |
indicates the frame context to use |
|
frame_header_length_in_bytes |
r/w |
length of uncompressed header |
|
frame_parallel_decoding_mode |
r/w |
equal to 1 indicates that parallel decoding mode is enabled |
|
frame_to_show_map_idx |
r/w |
specifies the frame to be displayed. It is only available if show_existing_frame is 1 |
|
frame_type |
r/w |
equal to 0 indicates that the current frame is a key frame |
|
header_size_in_bytes |
r/w |
||
height |
r/w |
coded frame height |
|
interpolation_filter |
r/w |
specifies the filter selection used for performing inter prediction |
|
intra_only |
r/w |
equal to 1 indicates that the frame is an intra-only frame |
|
loop_filter_params |
r/w |
||
lossless_flag |
r/w |
lossless mode decode |
|
profile |
r/w |
encoded profile |
|
quantization_params |
r/w |
||
ref_frame_idx |
r/w |
specifies which reference frames are used by inter frames |
|
ref_frame_sign_bias |
r/w |
specifies the intended direction of the motion vector in time for each reference frame. A sign bias equal to 0 indicates that the reference frame is a backwards reference |
|
reference_mode |
r/w |
Is a derived syntax element that specifies the type of inter prediction to be used. |
|
refresh_frame_context |
r/w |
equal to 1 indicates that the probabilities computed for this frame |
|
refresh_frame_flags |
r/w |
contains a bitmask that specifies which reference frame slots will be updated with the current frame after it is decoded |
|
render_and_frame_size_different |
r/w |
equal to 0 means that the render width and height are inferred from the frame width and height |
|
render_height |
r/w |
render width of the frame |
|
render_width |
r/w |
render width of the frame |
|
reset_frame_context |
r/w |
specifies whether the frame context should be reset to default values |
|
segmentation_params |
r/w |
||
show_existing_frame |
r/w |
equal to 1, indicates the frame indexed by frame_to_show_map_idx is to be displayed |
|
show_frame |
r/w |
indicate whether it is a displayable frame or not |
|
subsampling_x |
r/w |
specify the chroma subsampling format for x coordinate |
|
subsampling_y |
r/w |
specify the chroma subsampling format for y coordinate |
|
tile_cols_log2 |
r/w |
specifies the base 2 logarithm of the width of each tile |
|
tile_rows_log2 |
r/w |
specifies the base 2 logarithm of the height of each tile |
|
tx_mode |
r/w |
Specifies how the transform size is determined. |
|
width |
r/w |
coded frame width |
Methods¶
None
Details¶
- class GstCodecs.Vp9FrameHeader¶
New in version 1.20.