LIBJXL
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#include <codestream_header.h>
Public Attributes | |
uint32_t | duration |
uint32_t | timecode |
uint32_t | name_length |
JXL_BOOL | is_last |
JxlLayerInfo | layer_info |
The header of one displayed frame or non-coalesced layer.
uint32_t JxlFrameHeader::duration |
How long to wait after rendering in ticks. The duration in seconds of a tick is given by tps_numerator and tps_denominator in JxlAnimationHeader.
JXL_BOOL JxlFrameHeader::is_last |
Indicates this is the last animation frame. This value is set by the decoder to indicate no further frames follow. For the encoder, it is not required to set this value and it is ignored, JxlEncoderCloseFrames is used to indicate the last frame to the encoder instead.
JxlLayerInfo JxlFrameHeader::layer_info |
Information about the layer in case of no coalescing.
uint32_t JxlFrameHeader::name_length |
Length of the frame name in bytes, or 0 if no name. Excludes null termination character. This value is set by the decoder. For the encoder, this value is ignored and JxlEncoderSetFrameName is used instead to set the name and the length.
uint32_t JxlFrameHeader::timecode |
SMPTE timecode of the current frame in form 0xHHMMSSFF, or 0. The bits are interpreted from most-significant to least-significant as hour, minute, second, and frame. If timecode is nonzero, it is strictly larger than that of a previous frame with nonzero duration. These values are only available if have_timecodes in JxlAnimationHeader is JXL_TRUE. This value is only used if have_timecodes in JxlAnimationHeader is JXL_TRUE.