[FFmpeg-devel] [PATCH] Separate video specific BufferRef properties into VideoProps

[Michael Niedermayer]

On Sat, Aug 07, 2010 at 06:23:22PM -0700, S.N. Hemanth Meenakshisundaram wrote:
[...]

> --- a/libavfilter/avfilter.h
> +++ b/libavfilter/avfilter.h
> @@ -37,6 +37,7 @@
>  #define LIBAVFILTER_BUILD       LIBAVFILTER_VERSION_INT
>  
>  #include <stddef.h>
> +#include <assert.h>
>  #include "libavcodec/avcodec.h"
>  
>  /**
> @@ -89,6 +90,21 @@ typedef struct AVFilterBuffer
>  #define AV_PERM_REUSE2   0x10   ///< can output the buffer multiple times, modified each time
>  
>  /**
> + * Video specific properties in a reference to an AVFilterBuffer. Since
> + * AVFilterBufferRef is common to different media formats, video specific
> + * per reference properties must be separated out.
> + */
> +
> +typedef struct AVFilterBufferRefVideoProps
> +{
> +    AVRational pixel_aspect;    ///< pixel aspect ratio
> +    int w;                      ///< image width
> +    int h;                      ///< image height
> +    int interlaced;             ///< is frame interlaced
> +    int top_field_first;        ///< field order
> +} AVFilterBufferRefVideoProps;
> +
> +/**
>   * A reference to an AVFilterBuffer. Since filters can manipulate the origin of
>   * a buffer to, for example, crop image without any memcpy, the buffer origin
>   * and dimensions are per-reference properties. Linesize is also useful for
> @@ -101,34 +117,41 @@ typedef struct AVFilterBufferRef
>      AVFilterBuffer *buf;        ///< the buffer that this is a reference to
>      uint8_t *data[4];           ///< picture data for each plane
>      int linesize[4];            ///< number of bytes per line
> -    int w;                      ///< image width
> -    int h;                      ///< image height
>      int format;                 ///< media format
>  
>      int64_t pts;                ///< presentation timestamp in units of 1/AV_TIME_BASE
>      int64_t pos;                ///< byte position in stream, -1 if unknown
>  
> -    AVRational pixel_aspect;    ///< pixel aspect ratio
> -
>      int perms;                  ///< permissions, see the AV_PERM_* flags
>  
> -    int interlaced;             ///< is frame interlaced
> -    int top_field_first;
> +    enum AVMediaType type;      ///< media type of buffer data
> +    void *props;                ///< media specific properties, cast to right type

AVFilterBufferRefVideoProps *vid;
AVFilterBufferRefAudioProps *aud;

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Dictatorship naturally arises out of democracy, and the most aggravated
form of tyranny and slavery out of the most extreme liberty. -- Plato
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 190 bytes
Desc: Digital signature
URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20100809/7022dd92/attachment.pgp>