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Change avfilter_add_colorspace() to make it accept **avff rather than

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*avff, so that an AVFilterFormats struct is created and returned by
the function if *avff is NULL.

Make the function use more convenient.

Originally committed as revision 21035 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2010-01-06 16:19:13 +00:00
parent 7659712749
commit c1d662fd88
2 changed files with 16 additions and 11 deletions
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8
libavfilter/avfilter.h
View File

@ -25,7 +25,7 @@
#include "libavutil/avutil.h"
#define LIBAVFILTER_VERSION_MAJOR 1
#define LIBAVFILTER_VERSION_MINOR 13
#define LIBAVFILTER_VERSION_MINOR 14
#define LIBAVFILTER_VERSION_MICRO 0
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
@ -192,12 +192,14 @@ struct AVFilterFormats
AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts);
/**
* Adds pix_fmt to the list of pixel formats contained in avff.
* Adds pix_fmt to the list of pixel formats contained in *avff.
* If *avff is NULL the function allocates the filter formats struct
* and puts its pointer in *avff.
*
* @return a non negative value in case of success, or a negative
* value corresponding to an AVERROR code in case of error
*/
int avfilter_add_colorspace(AVFilterFormats *avff, enum PixelFormat pix_fmt);
int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt);
/**
* Returns a list of all colorspaces supported by FFmpeg.

19
libavfilter/formats.c
View File

@ -86,28 +86,31 @@ AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts)
return formats;
}
int avfilter_add_colorspace(AVFilterFormats *avff, enum PixelFormat pix_fmt)
int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt)
{
enum PixelFormat *pix_fmts =
av_realloc(avff->formats, sizeof(avff->formats) * (avff->format_count+1));
enum PixelFormat *pix_fmts;
if (!(*avff) && !(*avff = av_mallocz(sizeof(AVFilterFormats))))
return AVERROR(ENOMEM);
pix_fmts = av_realloc((*avff)->formats,
sizeof((*avff)->formats) * ((*avff)->format_count+1));
if (!pix_fmts)
return AVERROR(ENOMEM);
avff->formats = pix_fmts;
avff->formats[avff->format_count++] = pix_fmt;
(*avff)->formats = pix_fmts;
(*avff)->formats[(*avff)->format_count++] = pix_fmt;
return 0;
}
AVFilterFormats *avfilter_all_colorspaces(void)
{
AVFilterFormats *ret;
AVFilterFormats *ret = NULL;
enum PixelFormat pix_fmt;
ret = av_mallocz(sizeof(AVFilterFormats));
for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
if (!(av_pix_fmt_descriptors[pix_fmt].flags & PIX_FMT_HWACCEL))
avfilter_add_colorspace(ret, pix_fmt);
avfilter_add_colorspace(&ret, pix_fmt);
return ret;
}