switch (st->codec->codec_id) {
#if CONFIG_DV_DEMUXER
case AV_CODEC_ID_DVAUDIO:
- c->dv_fctx = avformat_alloc_context();
+ c->dv_fctx = avformat_alloc_context();
+ if (!c->dv_fctx) {
+ av_log(c->fc, AV_LOG_ERROR, "dv demux context alloc error\n");
+ return AVERROR(ENOMEM);
+ }
c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
if (!c->dv_demux) {
av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");