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Code Issues Releases Activity

avformat/nsvdec: Simplify cleanup after read_header failure

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by setting the FF_FMT_INIT_CLEANUP flag.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2020-03-21 18:31:06 +01:00
parent 2135167c30
commit 06f31d01e6
1 changed files with 6 additions and 11 deletions
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17
libavformat/nsvdec.c
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@ -211,7 +211,6 @@ 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)
@ -495,30 +494,25 @@ static int nsv_read_header(AVFormatContext *s)
for (i = 0; i < NSV_MAX_RESYNC_TRIES; i++) {
err = nsv_resync(s);
if (err < 0)
goto fail;
return err;
if (nsv->state == NSV_FOUND_NSVF) {
err = nsv_parse_NSVf_header(s);
if (err < 0)
goto fail;
return err;
}
/* we need the first NSVs also... */
if (nsv->state == NSV_FOUND_NSVS) {
err = nsv_parse_NSVs_header(s);
if (err < 0)
goto fail;
return err;
break; /* we just want the first one */
}
}
if (s->nb_streams < 1) { /* no luck so far */
err = AVERROR_INVALIDDATA;
goto fail;
}
if (s->nb_streams < 1) /* no luck so far */
return AVERROR_INVALIDDATA;
/* 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;
@ -738,6 +732,7 @@ const AVInputFormat ff_nsv_demuxer = {
.name = "nsv",
.long_name = NULL_IF_CONFIG_SMALL("Nullsoft Streaming Video"),
.priv_data_size = sizeof(NSVContext),
.flags_internal = FF_FMT_INIT_CLEANUP,
.read_probe = nsv_probe,
.read_header = nsv_read_header,
.read_packet = nsv_read_packet,