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Document structure change rules with relation to ABI/API.

Originally committed as revision 11281 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-12-20 09:43:01 +00:00
parent 1408352ada
commit 252f17e292
2 changed files with 12 additions and 2 deletions

View File

@ -753,7 +753,11 @@ typedef struct AVFrame {
#define DEFAULT_FRAME_RATE_BASE 1001000
/**
* main external API structure
* main external API structure.
* New fields can be added to the end with minor version bumps.
* Removial, reordering and changes to existing fields require a Major
* version bump.
* sizeof(AVCodecContext) must not be used outside libav*
*/
typedef struct AVCodecContext {
/**

View File

@ -358,7 +358,13 @@ typedef struct AVProgram {
#define MAX_STREAMS 20
/* format I/O context */
/**
* format I/O context.
* New fields can be added to the end with minor version bumps.
* Removial, reordering and changes to existing fields require a Major
* version bump.
* sizeof(AVFormatContext) must not be used outside libav*
*/
typedef struct AVFormatContext {
const AVClass *av_class; /**< set by av_alloc_format_context */
/* can only be iformat or oformat, not both at the same time */