diff options
| -rw-r--r-- | libavformat/nsvdec.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/libavformat/nsvdec.c b/libavformat/nsvdec.c index 7aa1b605b0..b5d9313778 100644 --- a/libavformat/nsvdec.c +++ b/libavformat/nsvdec.c @@ -211,6 +211,7 @@ static const AVCodecTag nsv_codec_audio_tags[] = { //static int nsv_load_index(AVFormatContext *s); static int nsv_read_chunk(AVFormatContext *s, int fill_header); +static int nsv_read_close(AVFormatContext *s); /* try to find something we recognize, and set the state accordingly */ static int nsv_resync(AVFormatContext *s) @@ -492,25 +493,32 @@ static int nsv_read_header(AVFormatContext *s) nsv->ahead[0].data = nsv->ahead[1].data = NULL; for (i = 0; i < NSV_MAX_RESYNC_TRIES; i++) { - if (nsv_resync(s) < 0) - return -1; + err = nsv_resync(s); + if (err < 0) + goto fail; if (nsv->state == NSV_FOUND_NSVF) { err = nsv_parse_NSVf_header(s); if (err < 0) - return err; + goto fail; } /* we need the first NSVs also... */ if (nsv->state == NSV_FOUND_NSVS) { err = nsv_parse_NSVs_header(s); if (err < 0) - return err; + goto fail; break; /* we just want the first one */ } } - if (s->nb_streams < 1) /* no luck so far */ - return -1; + if (s->nb_streams < 1) { /* no luck so far */ + err = AVERROR_INVALIDDATA; + goto fail; + } + /* now read the first chunk, so we can attempt to decode more info */ err = nsv_read_chunk(s, 1); +fail: + if (err < 0) + nsv_read_close(s); av_log(s, AV_LOG_TRACE, "parsed header\n"); return err; |