]> git.sesse.net Git - ffmpeg/blobdiff - libavfilter/avfiltergraph.c
fate: split off Ut Video codec FATE tests into their own file
[ffmpeg] / libavfilter / avfiltergraph.c
index 8a258912df4a093b7edaca2c55a4cc77a5d1c593..8c43251c4cc11ce32fc1ef3a41fe0961351513ec 100644 (file)
@@ -3,20 +3,20 @@
  * Copyright (c) 2008 Vitor Sessak
  * Copyright (c) 2007 Bobby Bingham
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -32,12 +32,15 @@ AVFilterGraph *avfilter_graph_alloc(void)
     return av_mallocz(sizeof(AVFilterGraph));
 }
 
-void avfilter_graph_free(AVFilterGraph *graph)
+void avfilter_graph_free(AVFilterGraph **graph)
 {
-    for(; graph->filter_count > 0; graph->filter_count --)
-        avfilter_free(graph->filters[graph->filter_count - 1]);
-    av_freep(&graph->scale_sws_opts);
-    av_freep(&graph->filters);
+    if (!*graph)
+        return;
+    for (; (*graph)->filter_count > 0; (*graph)->filter_count--)
+        avfilter_free((*graph)->filters[(*graph)->filter_count - 1]);
+    av_freep(&(*graph)->scale_sws_opts);
+    av_freep(&(*graph)->filters);
+    av_freep(graph);
 }
 
 int avfilter_graph_add_filter(AVFilterGraph *graph, AVFilterContext *filter)
@@ -79,7 +82,7 @@ int ff_avfilter_graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
     AVFilterContext *filt;
     int i, j;
 
-    for (i=0; i < graph->filter_count; i++) {
+    for (i = 0; i < graph->filter_count; i++) {
         filt = graph->filters[i];
 
         for (j = 0; j < filt->input_count; j++) {
@@ -87,7 +90,7 @@ int ff_avfilter_graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
                 av_log(log_ctx, AV_LOG_ERROR,
                        "Input pad \"%s\" for the filter \"%s\" of type \"%s\" not connected to any source\n",
                        filt->input_pads[j].name, filt->name, filt->filter->name);
-                return -1;
+                return AVERROR(EINVAL);
             }
         }
 
@@ -96,7 +99,7 @@ int ff_avfilter_graph_check_validity(AVFilterGraph *graph, AVClass *log_ctx)
                 av_log(log_ctx, AV_LOG_ERROR,
                        "Output pad \"%s\" for the filter \"%s\" of type \"%s\" not connected to any destination\n",
                        filt->output_pads[j].name, filt->name, filt->filter->name);
-                return -1;
+                return AVERROR(EINVAL);
             }
         }
     }
@@ -125,8 +128,8 @@ AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name)
 {
     int i;
 
-    for(i = 0; i < graph->filter_count; i ++)
-        if(graph->filters[i]->name && !strcmp(name, graph->filters[i]->name))
+    for (i = 0; i < graph->filter_count; i++)
+        if (graph->filters[i]->name && !strcmp(name, graph->filters[i]->name))
             return graph->filters[i];
 
     return NULL;
@@ -139,22 +142,22 @@ static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
     char inst_name[30];
 
     /* 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)
+    for (i = 0; i < graph->filter_count; i++) {
+        if (graph->filters[i]->filter->query_formats)
             graph->filters[i]->filter->query_formats(graph->filters[i]);
         else
             avfilter_default_query_formats(graph->filters[i]);
     }
 
     /* go through and merge as many format lists as possible */
-    for(i = 0; i < graph->filter_count; i ++) {
+    for (i = 0; i < graph->filter_count; i++) {
         AVFilterContext *filter = graph->filters[i];
 
-        for(j = 0; j < filter->input_count; j ++) {
+        for (j = 0; j < filter->input_count; j++) {
             AVFilterLink *link = filter->inputs[j];
-            if(link && link->in_formats != link->out_formats) {
-                if(!avfilter_merge_formats(link->in_formats,
-                                           link->out_formats)) {
+            if (link && link->in_formats != link->out_formats) {
+                if (!avfilter_merge_formats(link->in_formats,
+                                            link->out_formats)) {
                     AVFilterContext *scale;
                     char scale_args[256];
                     /* couldn't merge format lists. auto-insert scale filter */
@@ -175,7 +178,7 @@ static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
                         av_log(log_ctx, AV_LOG_ERROR,
                                "Impossible to convert between the formats supported by the filter "
                                "'%s' and the filter '%s'\n", link->src->name, link->dst->name);
-                        return -1;
+                        return AVERROR(EINVAL);
                     }
                 }
             }
@@ -187,7 +190,7 @@ static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
 
 static void pick_format(AVFilterLink *link)
 {
-    if(!link || !link->in_formats)
+    if (!link || !link->in_formats)
         return;
 
     link->in_formats->format_count = 1;
@@ -201,21 +204,23 @@ static void pick_formats(AVFilterGraph *graph)
 {
     int i, j;
 
-    for(i = 0; i < graph->filter_count; i ++) {
+    for (i = 0; i < graph->filter_count; i++) {
         AVFilterContext *filter = graph->filters[i];
 
-        for(j = 0; j < filter->input_count; j ++)
+        for (j = 0; j < filter->input_count; j++)
             pick_format(filter->inputs[j]);
-        for(j = 0; j < filter->output_count; j ++)
+        for (j = 0; j < filter->output_count; j++)
             pick_format(filter->outputs[j]);
     }
 }
 
 int ff_avfilter_graph_config_formats(AVFilterGraph *graph, AVClass *log_ctx)
 {
+    int ret;
+
     /* find supported formats from sub-filters, and merge along links */
-    if(query_formats(graph, log_ctx))
-        return -1;
+    if ((ret = query_formats(graph, log_ctx)) < 0)
+        return ret;
 
     /* Once everything is merged, it's possible that we'll still have
      * multiple valid media format choices. We pick the first one. */
@@ -224,7 +229,7 @@ int ff_avfilter_graph_config_formats(AVFilterGraph *graph, AVClass *log_ctx)
     return 0;
 }
 
-int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx)
+int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx)
 {
     int ret;