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Generalize pixel format enum fields to int formats. 

This is needed to make the libavfilter framework work with audio
filters.

In particular add a type field to AVFilterLink, change the field types:
enum PixelFormat format   -> int format   in AVFilterBuffer
enum PixelFormat *formats -> int *formats in AVFilterFormats
enum PixelFormat *format  -> int format   in AVFilterLink

and change the function signatures:
AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
AVFilterFormats *avfilter_make_format_list(const int *fmts);

int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
int avfilter_add_format(AVFilterFormats **avff, int fmt);

AVFilterFormats *avfilter_all_colorspaces(void); ->
AVFilterFormats *avfilter_all_formats(enum AVMediaType type);

This change breaks libavfilter API/ABI.

Patch by S.N. Hemanth Meenakshisundaram |smeenaks|ucsd|edu|.

Originally committed as revision 24424 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
S.N. Hemanth Meenakshisundaram 2010-07-22 11:12:47 +00:00 committed by Stefano Sabatini
parent 98137a1a5b
commit bdab614be8
6 changed files with 43 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
libavfilter/avfilter.c
View File

@ -98,7 +98,9 @@ int avfilter_link(AVFilterContext *src, unsigned srcpad,
link->dst = dst;
link->srcpad = srcpad;
link->dstpad = dstpad;
link->format = PIX_FMT_NONE;
link->type = src->output_pads[srcpad].type;
assert(PIX_FMT_NONE == -1 && SAMPLE_FMT_NONE == -1);
link->format = -1;
return 0;
}
@ -122,7 +124,7 @@ int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
link->dstpad = in;
filt->inputs[in] = link;
/* if any information on supported colorspaces already exists on the
/* if any information on supported media formats already exists on the
* link, we need to preserve that */
if(link->out_formats)
avfilter_formats_changeref(&link->out_formats,

24
libavfilter/avfilter.h
View File

@ -25,7 +25,7 @@
#include "libavutil/avutil.h"
#define LIBAVFILTER_VERSION_MAJOR 1
#define LIBAVFILTER_VERSION_MINOR 25
#define LIBAVFILTER_VERSION_MINOR 26
#define LIBAVFILTER_VERSION_MICRO 1
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
@ -68,7 +68,7 @@ typedef struct AVFilterBuffer
{
uint8_t *data[4]; ///< buffer data for each plane
int linesize[4]; ///< number of bytes per line
enum PixelFormat format; ///< colorspace
int format; ///< media format
unsigned refcount; ///< number of references to this buffer
@ -190,7 +190,7 @@ typedef struct AVFilterFormats AVFilterFormats;
struct AVFilterFormats
{
unsigned format_count; ///< number of formats
enum PixelFormat *formats; ///< list of pixel formats
int *formats; ///< list of media formats
unsigned refcount; ///< number of references to this list
AVFilterFormats ***refs; ///< references to this list
@ -199,25 +199,25 @@ struct AVFilterFormats
/**
* Create a list of supported formats. This is intended for use in
* AVFilter->query_formats().
* @param pix_fmts list of pixel formats, terminated by PIX_FMT_NONE
* @param fmts list of media formats, terminated by -1
* @return the format list, with no existing references
*/
AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts);
AVFilterFormats *avfilter_make_format_list(const int *fmts);
/**
* Add pix_fmt to the list of pixel formats contained in *avff.
* Add fmt to the list of media 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_format(AVFilterFormats **avff, int fmt);
/**
* Return a list of all colorspaces supported by FFmpeg.
* Return a list of all formats supported by FFmpeg for the given media type.
*/
AVFilterFormats *avfilter_all_colorspaces(void);
AVFilterFormats *avfilter_all_formats(enum AVMediaType type);
/**
* Return a format list which contains the intersection of the formats of
@ -507,9 +507,11 @@ struct AVFilterLink
AVLINK_INIT ///< complete
} init_state;
enum AVMediaType type; ///< filter media type
int w; ///< agreed upon image width
int h; ///< agreed upon image height
enum PixelFormat format; ///< agreed upon image colorspace
int format; ///< agreed upon media format
/**
* Lists of formats supported by the input and output filters respectively.
@ -544,7 +546,7 @@ int avfilter_link(AVFilterContext *src, unsigned srcpad,
AVFilterContext *dst, unsigned dstpad);
/**
* Negotiate the colorspace, dimensions, etc of all inputs to a filter.
* Negotiate the media format, dimensions, etc of all inputs to a filter.
* @param filter the filter to negotiate the properties for its inputs
* @return zero on successful negotiation
*/

4
libavfilter/avfiltergraph.c
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@ -111,7 +111,7 @@ static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
int scaler_count = 0;
char inst_name[30];
/* ask all the sub-filters for their supported colorspaces */
/* ask all the sub-filters for their supported media formats */
for(i = 0; i < graph->filter_count; i ++) {
if(graph->filters[i]->filter->query_formats)
graph->filters[i]->filter->query_formats(graph->filters[i]);
@ -197,7 +197,7 @@ int avfilter_graph_config_formats(AVFilterGraph *graph, AVClass *log_ctx)
return -1;
/* Once everything is merged, it's possible that we'll still have
* multiple valid colorspace choices. We pick the first one. */
* multiple valid media format choices. We pick the first one. */
pick_formats(graph);
return 0;

6
libavfilter/defaults.c
View File

@ -160,7 +160,11 @@ void avfilter_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
int avfilter_default_query_formats(AVFilterContext *ctx)
{
avfilter_set_common_formats(ctx, avfilter_all_colorspaces());
enum AVMediaType type = ctx->inputs [0] ? ctx->inputs [0]->type :
ctx->outputs[0] ? ctx->outputs[0]->type :
AVMEDIA_TYPE_VIDEO;
avfilter_set_common_formats(ctx, avfilter_all_formats(type));
return 0;
}

32
libavfilter/formats.c
View File

@ -70,47 +70,49 @@ AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b)
return ret;
}
AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts)
AVFilterFormats *avfilter_make_format_list(const int *fmts)
{
AVFilterFormats *formats;
int count;
for (count = 0; pix_fmts[count] != PIX_FMT_NONE; count++)
for (count = 0; fmts[count] != -1; count++)
;
formats = av_mallocz(sizeof(AVFilterFormats));
formats->formats = av_malloc(sizeof(*formats->formats) * count);
formats->format_count = count;
memcpy(formats->formats, pix_fmts, sizeof(*formats->formats) * count);
memcpy(formats->formats, fmts, sizeof(*formats->formats) * count);
return formats;
}
int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt)
int avfilter_add_format(AVFilterFormats **avff, int fmt)
{
enum PixelFormat *pix_fmts;
int *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)
fmts = av_realloc((*avff)->formats,
sizeof((*avff)->formats) * ((*avff)->format_count+1));
if (!fmts)
return AVERROR(ENOMEM);
(*avff)->formats = pix_fmts;
(*avff)->formats[(*avff)->format_count++] = pix_fmt;
(*avff)->formats = fmts;
(*avff)->formats[(*avff)->format_count++] = fmt;
return 0;
}
AVFilterFormats *avfilter_all_colorspaces(void)
AVFilterFormats *avfilter_all_formats(enum AVMediaType type)
{
AVFilterFormats *ret = NULL;
enum PixelFormat pix_fmt;
int fmt;
int num_formats = type == AVMEDIA_TYPE_VIDEO ? PIX_FMT_NB : 0;
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);
for (fmt = 0; fmt < num_formats; fmt++)
if ((type != AVMEDIA_TYPE_VIDEO) ||
(type == AVMEDIA_TYPE_VIDEO && !(av_pix_fmt_descriptors[fmt].flags & PIX_FMT_HWACCEL)))
avfilter_add_format(&ret, fmt);
return ret;
}

4
libavfilter/vf_scale.c
View File

@ -83,7 +83,7 @@ static int query_formats(AVFilterContext *ctx)
formats = NULL;
for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
if ( sws_isSupportedInput(pix_fmt)
&& (ret = avfilter_add_colorspace(&formats, pix_fmt)) < 0) {
&& (ret = avfilter_add_format(&formats, pix_fmt)) < 0) {
avfilter_formats_unref(&formats);
return ret;
}
@ -93,7 +93,7 @@ static int query_formats(AVFilterContext *ctx)
formats = NULL;
for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
if ( sws_isSupportedOutput(pix_fmt)
&& (ret = avfilter_add_colorspace(&formats, pix_fmt)) < 0) {
&& (ret = avfilter_add_format(&formats, pix_fmt)) < 0) {
avfilter_formats_unref(&formats);
return ret;
}