avformat/utils: Check allocations for failure

There would be leaks in case of failure.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavformat/utils.c

@@ -4625,7 +4625,7 @@ fail:
 AVProgram *av_new_program(AVFormatContext *ac, int id)
 {
     AVProgram *program = NULL;
-    int i;
+    int i, ret;
 
     av_log(ac, AV_LOG_TRACE, "new_program: id=0x%04x\n", id);
 
@@ -4637,7 +4637,11 @@ AVProgram *av_new_program(AVFormatContext *ac, int id)
         program = av_mallocz(sizeof(AVProgram));
         if (!program)
             return NULL;
-        dynarray_add(&ac->programs, &ac->nb_programs, program);
+        ret = av_dynarray_add_nofree(&ac->programs, &ac->nb_programs, program);
+        if (ret < 0) {
+            av_free(program);
+            return NULL;
+        }
         program->discard = AVDISCARD_NONE;
         program->pmt_version = -1;
         program->id = id;
@@ -4657,7 +4661,7 @@ AVChapter *avpriv_new_chapter(AVFormatContext *s, int64_t id, AVRational time_ba
                               int64_t start, int64_t end, const char *title)
 {
     AVChapter *chapter = NULL;
-    int i;
+    int i, ret;
 
     if (end != AV_NOPTS_VALUE && start > end) {
         av_log(s, AV_LOG_ERROR, "Chapter end time %"PRId64" before start %"PRId64"\n", end, start);
@@ -4677,7 +4681,11 @@ AVChapter *avpriv_new_chapter(AVFormatContext *s, int64_t id, AVRational time_ba
         chapter = av_mallocz(sizeof(AVChapter));
         if (!chapter)
             return NULL;
-        dynarray_add(&s->chapters, &s->nb_chapters, chapter);
+        ret = av_dynarray_add_nofree(&s->chapters, &s->nb_chapters, chapter);
+        if (ret < 0) {
+            av_free(chapter);
+            return NULL;
+        }
     }
     av_dict_set(&chapter->metadata, "title", title, 0);
     chapter->id        = id;