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avfiltergraph: change the syntax of avfilter_graph_parse()

Make it returns the list of open inputs and outputs, so it can be reused by applications. Breaks API/ABI.

Stefano Sabatini committed 15 years ago

Commit 6119b231 parent 86909dd6 files · +22 −17Browse files

Showing the changes to libavfilter/graphparser.c (1 of 6 files). Show all

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libavfilter/graphparser.c+10−10
@@ -328,8 +328,8 @@ static int parse_outputs(const char **buf, AVFilterInOut **curr_inputs, · 327 unmodified lines
328}328}
329 329
330int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,330int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
331 AVFilterInOut *open_inputs,331 AVFilterInOut **open_inputs, AVFilterInOut **open_outputs,
332 AVFilterInOut *open_outputs, void *log_ctx)332 void *log_ctx)
333{333{
334 int index = 0, ret;334 int index = 0, ret;
335 char chr = 0;335 char chr = 0;
@@ -341,7 +341,7 @@ int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, · 5 unmodified lines
341 const char *filterchain = filters;341 const char *filterchain = filters;
342 filters += strspn(filters, WHITESPACES);342 filters += strspn(filters, WHITESPACES);
343 343
344 if ((ret = parse_inputs(&filters, &curr_inputs, &open_outputs, log_ctx)) < 0)344 if ((ret = parse_inputs(&filters, &curr_inputs, open_outputs, log_ctx)) < 0)
345 goto fail;345 goto fail;
346 346
347 if ((ret = parse_filter(&filter, &filters, graph, index, log_ctx)) < 0)347 if ((ret = parse_filter(&filter, &filters, graph, index, log_ctx)) < 0)
@@ -350,14 +350,14 @@ int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, · 2 unmodified lines
350 if (filter->input_count == 1 && !curr_inputs && !index) {350 if (filter->input_count == 1 && !curr_inputs && !index) {
351 /* First input can be omitted if it is "[in]" */351 /* First input can be omitted if it is "[in]" */
352 const char *tmp = "[in]";352 const char *tmp = "[in]";
353 if ((ret = parse_inputs(&tmp, &curr_inputs, &open_outputs, log_ctx)) < 0)353 if ((ret = parse_inputs(&tmp, &curr_inputs, open_outputs, log_ctx)) < 0)
354 goto fail;354 goto fail;
355 }355 }
356 356
357 if ((ret = link_filter_inouts(filter, &curr_inputs, &open_inputs, log_ctx)) < 0)357 if ((ret = link_filter_inouts(filter, &curr_inputs, open_inputs, log_ctx)) < 0)
358 goto fail;358 goto fail;
359 359
360 if ((ret = parse_outputs(&filters, &curr_inputs, &open_inputs, &open_outputs,360 if ((ret = parse_outputs(&filters, &curr_inputs, open_inputs, open_outputs,
361 log_ctx)) < 0)361 log_ctx)) < 0)
362 goto fail;362 goto fail;
363 363
@@ -382,10 +382,10 @@ int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, · 18 unmodified lines
382 goto fail;382 goto fail;
383 }383 }
384 384
385 if (open_inputs && !strcmp(open_inputs->name, "out") && curr_inputs) {385 if (*open_inputs && !strcmp((*open_inputs)->name, "out") && curr_inputs) {
386 /* Last output can be omitted if it is "[out]" */386 /* Last output can be omitted if it is "[out]" */
387 const char *tmp = "[out]";387 const char *tmp = "[out]";
388 if ((ret = parse_outputs(&tmp, &curr_inputs, &open_inputs, &open_outputs,388 if ((ret = parse_outputs(&tmp, &curr_inputs, open_inputs, open_outputs,
389 log_ctx)) < 0)389 log_ctx)) < 0)
390 goto fail;390 goto fail;
391 }391 }
@@ -396,8 +396,8 @@ int avfilter_graph_parse(AVFilterGraph *graph, const char *filters, · 4 unmodified lines
396 for (; graph->filter_count > 0; graph->filter_count--)396 for (; graph->filter_count > 0; graph->filter_count--)
397 avfilter_free(graph->filters[graph->filter_count - 1]);397 avfilter_free(graph->filters[graph->filter_count - 1]);
398 av_freep(&graph->filters);398 av_freep(&graph->filters);
399 free_inout(open_inputs);399 free_inout(*open_inputs);
400 free_inout(open_outputs);400 free_inout(*open_outputs);
401 free_inout(curr_inputs);401 free_inout(curr_inputs);
402 return ret;402 return ret;
403}403}

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