avconv: check that the output format context exists before accessing it

Fixes a segfault in exit_program() if opening an output file fails.
12 years ago · 274e134e49
parent 8b7dffc2d6
commit 274e134e49
1 changed files with 1 additions and 1 deletions
--- a/avconv.c
+++ b/avconv.c
@ -167,7 +167,7 @@ static void exit_program(void)
    /* close files */
    for (i = 0; i < nb_output_files; i++) {
        AVFormatContext *s = output_files[i]->ctx;
-        if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
+        if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)
            avio_close(s->pb);
        avformat_free_context(s);
        av_dict_free(&output_files[i]->opts);