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Make the step and offset fields of the component descriptor express a 

number of bits for bitstreams formats.

Originally committed as revision 18290 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2009-03-31 22:48:18 +00:00
parent 8514f8427f
commit 21010f6b2a
1 changed files with 12 additions and 2 deletions
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14
libavcodec/pixdesc.h
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@ -25,8 +25,18 @@
typedef struct AVComponentDescriptor{
uint16_t plane :2; ///< which of the 4 planes contains the component
uint16_t step_minus1 :3; ///< number of bytes between 2 horizontally consecutive pixels minus 1
uint16_t offset_plus1 :3; ///< number of bytes before the component of the first pixel plus 1
/**
* Number of elements between 2 horizontally consecutive pixels minus 1.
* Elements are bits for bitstream formats, bytes otherwise.
*/
uint16_t step_minus1 :3;
/**
* Number of elements before the component of the first pixel plus 1.
* Elements are bits for bitstream formats, bytes otherwise.
*/
uint16_t offset_plus1 :3;
uint16_t shift :3; ///< number of least significant bits that must be shifted away to get the value
uint16_t depth_minus1 :4; ///< number of bits in the component minus 1
}AVComponentDescriptor;