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Split graph_load_from_dest() to have a version independent of avfilter_vf_graph

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Commited in SoC by Vitor Sessak on 2008-03-24 19:19:38

Originally committed as revision 12731 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-04-04 20:08:40 +00:00
parent b6be4acc1f
commit 45a09319b2
2 changed files with 65 additions and 2 deletions
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62
libavfilter/avfiltergraph.c
View File

@ -488,11 +488,10 @@ int avfilter_graph_config_formats(AVFilterContext *graphctx)
return 0;
}
static int graph_load_from_desc(AVFilterContext *ctx, AVFilterGraphDesc *desc)
static int graph_load_from_desc2(AVFilterContext *ctx, AVFilterGraphDesc *desc)
{
AVFilterGraphDescFilter *curfilt;
AVFilterGraphDescLink *curlink;
AVFilterGraphDescExport *curpad;
AVFilterContext *filt, *filtb;
AVFilter *filterdef;
@ -533,6 +532,22 @@ static int graph_load_from_desc(AVFilterContext *ctx, AVFilterGraphDesc *desc)
}
}
return 0;
fail:
uninit(ctx);
return -1;
}
static int graph_load_from_desc(AVFilterContext *ctx, AVFilterGraphDesc *desc)
{
AVFilterGraphDescExport *curpad;
char tmp[20];
AVFilterContext *filt;
if (graph_load_from_desc2(ctx, desc) < 0)
goto fail;
/* export all input pads */
for(curpad = desc->inputs; curpad; curpad = curpad->next) {
snprintf(tmp, 20, "%d", curpad->filter);
@ -560,6 +575,49 @@ fail:
return -1;
}
int graph_load_from_desc3(AVFilterContext *ctx, AVFilterGraphDesc *desc, AVFilterContext *in, int inpad, AVFilterContext *out, int outpad)
{
AVFilterGraphDescExport *curpad;
char tmp[20];
AVFilterContext *filt;
if (graph_load_from_desc2(ctx, desc) < 0)
goto fail;
/* export all input pads */
for(curpad = desc->inputs; curpad; curpad = curpad->next) {
snprintf(tmp, 20, "%d", curpad->filter);
if(!(filt = avfilter_graph_get_filter(ctx, tmp))) {
av_log(ctx, AV_LOG_ERROR, "filter owning exported pad does not exist\n");
goto fail;
}
if(avfilter_link(in, inpad, filt, curpad->pad)) {
av_log(ctx, AV_LOG_ERROR, "cannot create link between source and destination filters\n");
goto fail;
}
}
/* export all output pads */
for(curpad = desc->outputs; curpad; curpad = curpad->next) {
snprintf(tmp, 20, "%d", curpad->filter);
if(!(filt = avfilter_graph_get_filter(ctx, tmp))) {
av_log(ctx, AV_LOG_ERROR, "filter owning exported pad does not exist\n");
goto fail;
}
if(avfilter_link(filt, curpad->pad, out, outpad)) {
av_log(ctx, AV_LOG_ERROR, "cannot create link between source and destination filters\n");
goto fail;
}
}
return 0;
fail:
uninit(ctx);
return -1;
}
static int init(AVFilterContext *ctx, const char *args, void *opaque)
{
GraphContext *gctx = ctx->priv;

5
libavfilter/avfiltergraph.h
View File

@ -119,4 +119,9 @@ int avfilter_graph_config_formats(AVFilterContext *graphctx);
*/
int avfilter_graph_config_links(AVFilterContext *graphctx);
int graph_load_from_desc3(AVFilterContext *ctx, AVFilterGraphDesc *desc,
AVFilterContext *in, int inpad,
AVFilterContext *out, int outpad);
#endif /* FFMPEG_AVFILTERGRAPH_H */