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.