@@ -1882,11 +1882,6 @@ static int transcode_init(void)
ifile->streams[j]->start = av_gettime_relative();
}
- /* init input streams */
- for (InputStream *ist = ist_iter(NULL); ist; ist = ist_iter(ist))
- if (ist->decoding_needed && (ret = dec_open(ist)) < 0)
- goto dump_format;
-
/*
* initialize stream copy and subtitle/data streams.
* Encoded AVFrame based streams will get initialized when the first AVFrame
@@ -566,6 +566,12 @@ static void ist_use(InputStream *ist, int decoding_needed)
ist->discard = 0;
ist->st->discard = ist->user_set_discard;
ist->decoding_needed |= decoding_needed;
+
+ if (decoding_needed && !avcodec_is_open(ist->dec_ctx)) {
+ int ret = dec_open(ist);
+ if (ret < 0)
+ report_and_exit(ret);
+ }
}
void ist_output_add(InputStream *ist, OutputStream *ost)