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nut: Make sure to clean up on read_header failure 

Based on Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> work.

CC: libav-stable@libav.org
This commit is contained in:
Luca Barbato 2015-04-29 21:29:49 +02:00
parent 4d0ee4962b
commit 254f3daba4
1 changed files with 22 additions and 17 deletions
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39
libavformat/nutdec.c
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@ -692,6 +692,20 @@ fail:
return ret;
}
static int nut_read_close(AVFormatContext *s)
{
NUTContext *nut = s->priv_data;
int i;
av_freep(&nut->time_base);
av_freep(&nut->stream);
ff_nut_free_sp(nut);
for (i = 1; i < nut->header_count; i++)
av_freep(&nut->header[i]);
return 0;
}
static int nut_read_header(AVFormatContext *s)
{
NUTContext *nut = s->priv_data;
@ -707,7 +721,7 @@ static int nut_read_header(AVFormatContext *s)
pos = find_startcode(bc, MAIN_STARTCODE, pos) + 1;
if (pos < 0 + 1) {
av_log(s, AV_LOG_ERROR, "No main startcode found.\n");
return AVERROR_INVALIDDATA;
goto fail;
}
} while (decode_main_header(nut) < 0);
@ -717,7 +731,7 @@ static int nut_read_header(AVFormatContext *s)
pos = find_startcode(bc, STREAM_STARTCODE, pos) + 1;
if (pos < 0 + 1) {
av_log(s, AV_LOG_ERROR, "Not all stream headers found.\n");
return AVERROR_INVALIDDATA;
goto fail;
}
if (decode_stream_header(nut) >= 0)
initialized_stream_count++;
@ -731,7 +745,7 @@ static int nut_read_header(AVFormatContext *s)
if (startcode == 0) {
av_log(s, AV_LOG_ERROR, "EOF before video frames\n");
return AVERROR_INVALIDDATA;
goto fail;
} else if (startcode == SYNCPOINT_STARTCODE) {
nut->next_startcode = startcode;
break;
@ -754,6 +768,11 @@ static int nut_read_header(AVFormatContext *s)
ff_metadata_conv_ctx(s, NULL, ff_nut_metadata_conv);
return 0;
fail:
nut_read_close(s);
return AVERROR_INVALIDDATA;
}
static int decode_frame_header(NUTContext *nut, int64_t *pts, int *stream_id,
@ -1028,20 +1047,6 @@ static int read_seek(AVFormatContext *s, int stream_index,
return 0;
}
static int nut_read_close(AVFormatContext *s)
{
NUTContext *nut = s->priv_data;
int i;
av_freep(&nut->time_base);
av_freep(&nut->stream);
ff_nut_free_sp(nut);
for (i = 1; i < nut->header_count; i++)
av_freep(&nut->header[i]);
return 0;
}
AVInputFormat ff_nut_demuxer = {
.name = "nut",
.long_name = NULL_IF_CONFIG_SMALL("NUT"),