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Rewrite colorspace negotiation.

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Commited in SoC by Bobby Bingham on 2007-12-20 19:36:26

Originally committed as revision 12027 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-02-15 21:39:24 +00:00
parent 52362e9dc1
commit 75ce65468f
1 changed files with 0 additions and 85 deletions
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85
libavfilter/avfilter.c
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@ -96,18 +96,6 @@ int avfilter_link(AVFilterContext *src, unsigned srcpad,
return 0;
}
static int common_format(int *fmts0, int *fmts1)
{
int i, j;
for(i = 0; fmts0[i] != -1; i ++)
for(j = 0; fmts1[j] != -1; j ++)
if(fmts0[i] == fmts1[j])
return fmts0[i];
return -1;
}
int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
unsigned in, unsigned out)
{
@ -131,57 +119,11 @@ int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
int avfilter_config_link(AVFilterLink *link)
{
int *fmts[3] = {NULL,NULL,NULL};
int (*config_link)(AVFilterLink *);
int *(*query_formats)(AVFilterLink *link);
AVFilterContext *scale;
AVFilterLink *link2 = NULL;
if(!link)
return 0;
/* find a format both filters support */
if(!(query_formats = link_spad(link).query_formats))
query_formats = avfilter_default_query_output_formats;
fmts[0] = query_formats(link);
fmts[1] = link_dpad(link).query_formats(link);
if((link->format = common_format(fmts[0], fmts[1])) == -1) {
/* no common format found. insert scale filter to convert */
if(!(scale = avfilter_open(&avfilter_vf_scale, NULL)))
goto format_done;
if(scale->filter->init(scale, NULL, NULL)) {
avfilter_destroy(scale);
goto format_done;
}
if(avfilter_insert_filter(link, scale, 0, 0))
goto format_done;
link2 = scale->outputs[0];
/* now try again to find working colorspaces.
* XXX: is it safe to assume that the scale filter always supports the
* same input and output colorspaces? */
fmts[2] = scale->input_pads[0].query_formats(link);
link->format = common_format(fmts[0], fmts[2]);
link2->format = common_format(fmts[1], fmts[2]);
}
format_done:
av_free(fmts[0]);
av_free(fmts[1]);
av_free(fmts[2]);
if(link->format == -1 || (link2 && link2->format == -1)) {
if(link2) {
link->dst = link2->dst;
link->dstpad = link2->dstpad;
link->dst->inputs[link->dstpad] = link;
link->format = -1;
avfilter_destroy(scale);
av_free(link2);
}
return -1;
}
if(!(config_link = link_spad(link).config_props))
config_link = avfilter_default_config_output_link;
if(config_link(link))
@ -192,18 +134,6 @@ format_done:
if(config_link(link))
return -1;
if(link2) {
if(!(config_link = link_spad(link2).config_props))
config_link = avfilter_default_config_output_link;
if(config_link(link2))
return -1;
if(!(config_link = link_dpad(link2).config_props))
config_link = avfilter_default_config_input_link;
if(config_link(link2))
return -1;
}
return 0;
}
@ -439,18 +369,3 @@ int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque
return 0;
}
int *avfilter_make_format_list(int len, ...)
{
int *ret, i;
va_list vl;
ret = av_malloc(sizeof(int) * (len + 1));
va_start(vl, len);
for(i = 0; i < len; i ++)
ret[i] = va_arg(vl, int);
va_end(vl);
ret[len] = -1;
return ret;
}