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Simplify graph_load_from_desc3() 

Commited in SoC by Vitor Sessak on 2008-03-26 20:37:43

Originally committed as revision 12737 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-04-04 20:08:59 +00:00
parent 9f39bb37e4
commit 58f472d10f
1 changed files with 54 additions and 41 deletions
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95
libavfilter/avfiltergraph.c
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@ -160,55 +160,54 @@ int avfilter_graph_config_formats(AVFilterGraph *graph)
return 0;
}
static int graph_load_from_desc2(AVFilterGraph *ctx, AVFilterGraphDesc *desc)
static int create_filter(AVFilterGraph *ctx, int index, char *name,
char *args)
{
AVFilterGraphDescFilter *curfilt;
AVFilterGraphDescLink *curlink;
AVFilterContext *filt, *filtb;
AVFilterContext *filt;
AVFilter *filterdef;
char tmp[20];
/* create all filters */
for(curfilt = desc->filters; curfilt; curfilt = curfilt->next) {
snprintf(tmp, 20, "%d", curfilt->index);
if(!(filterdef = avfilter_get_by_name(curfilt->filter)) ||
!(filt = avfilter_open(filterdef, tmp))) {
av_log(&log_ctx, AV_LOG_ERROR,
"error creating filter '%s'\n", curfilt->filter);
goto fail;
}
avfilter_graph_add_filter(ctx, filt);
if(avfilter_init_filter(filt, curfilt->args, NULL)) {
av_log(&log_ctx, AV_LOG_ERROR,
"error initializing filter '%s'\n", curfilt->filter);
goto fail;
}
snprintf(tmp, 20, "%d", index);
if(!(filterdef = avfilter_get_by_name(name)) ||
!(filt = avfilter_open(filterdef, tmp))) {
av_log(&log_ctx, AV_LOG_ERROR,
"error creating filter '%s'\n", name);
return -1;
}
/* create all links */
for(curlink = desc->links; curlink; curlink = curlink->next) {
snprintf(tmp, 20, "%d", curlink->src);
if(!(filt = avfilter_graph_get_filter(ctx, tmp))) {
av_log(&log_ctx, AV_LOG_ERROR, "link source does not exist in graph\n");
goto fail;
}
snprintf(tmp, 20, "%d", curlink->dst);
if(!(filtb = avfilter_graph_get_filter(ctx, tmp))) {
av_log(&log_ctx, AV_LOG_ERROR, "link destination does not exist in graph\n");
goto fail;
}
if(avfilter_link(filt, curlink->srcpad, filtb, curlink->dstpad)) {
av_log(&log_ctx, AV_LOG_ERROR, "cannot create link between source and destination filters\n");
goto fail;
}
avfilter_graph_add_filter(ctx, filt);
if(avfilter_init_filter(filt, args, NULL)) {
av_log(&log_ctx, AV_LOG_ERROR,
"error initializing filter '%s'\n", name);
return -1;
}
return 0;
}
fail:
uninit(ctx);
return -1;
static int link_filter(AVFilterGraph *ctx, int src, int srcpad,
int dst, int dstpad)
{
AVFilterContext *filt, *filtb;
char tmp[20];
snprintf(tmp, 20, "%d", src);
if(!(filt = avfilter_graph_get_filter(ctx, tmp))) {
av_log(&log_ctx, AV_LOG_ERROR, "link source does not exist in graph\n");
return -1;
}
snprintf(tmp, 20, "%d", dst);
if(!(filtb = avfilter_graph_get_filter(ctx, tmp))) {
av_log(&log_ctx, AV_LOG_ERROR, "link destination does not exist in graph\n");
return -1;
}
if(avfilter_link(filt, srcpad, filtb, dstpad)) {
av_log(&log_ctx, AV_LOG_ERROR, "cannot create link between source and destination filters\n");
return -1;
}
return 0;
}
int graph_load_from_desc3(AVFilterGraph *graph, AVFilterGraphDesc *desc, AVFilterContext *in, int inpad, AVFilterContext *out, int outpad)
@ -216,9 +215,23 @@ int graph_load_from_desc3(AVFilterGraph *graph, AVFilterGraphDesc *desc, AVFilte
AVFilterGraphDescExport *curpad;
char tmp[20];
AVFilterContext *filt;
AVFilterGraphDescFilter *curfilt;
AVFilterGraphDescLink *curlink;
if (graph_load_from_desc2(graph, desc) < 0)
goto fail;
/* create all filters */
for(curfilt = desc->filters; curfilt; curfilt = curfilt->next) {
if (create_filter(graph, curfilt->index, curfilt->filter,
curfilt->args) < 0)
goto fail;
}
/* create all links */
for(curlink = desc->links; curlink; curlink = curlink->next) {
if (link_filter(graph, curlink->src, curlink->srcpad,
curlink->dst, curlink->dstpad) < 0)
goto fail;
}
/* export all input pads */
for(curpad = desc->inputs; curpad; curpad = curpad->next) {