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avformat/matroskaenc: functions that add entries should not destroy the whole list on failure

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This reverts a hunk from "avformat: Use av_reallocp_array() where suitable"

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-09-11 12:13:44 +02:00
parent 32805f8521
commit c9367c0709
1 changed files with 6 additions and 12 deletions
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18
libavformat/matroskaenc.c
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@ -302,17 +302,14 @@ static mkv_seekhead * mkv_start_seekhead(AVIOContext *pb, int64_t segment_offset
static int mkv_add_seekhead_entry(mkv_seekhead *seekhead, unsigned int elementid, uint64_t filepos)
{
mkv_seekhead_entry *entries = seekhead->entries;
int err;
// don't store more elements than we reserved space for
if (seekhead->max_entries > 0 && seekhead->max_entries <= seekhead->num_entries)
return -1;
if ((err = av_reallocp_array(&entries, seekhead->num_entries + 1,
sizeof(*entries))) < 0) {
seekhead->num_entries = 0;
return err;
}
entries = av_realloc(entries, (seekhead->num_entries + 1) * sizeof(mkv_seekhead_entry));
if (entries == NULL)
return AVERROR(ENOMEM);
entries[seekhead->num_entries ].elementid = elementid;
entries[seekhead->num_entries++].segmentpos = filepos - seekhead->segment_offset;
@ -387,16 +384,13 @@ static mkv_cues * mkv_start_cues(int64_t segment_offset)
static int mkv_add_cuepoint(mkv_cues *cues, int stream, int64_t ts, int64_t cluster_pos, int64_t relative_pos)
{
mkv_cuepoint *entries = cues->entries;
int err;
if (ts < 0)
return 0;
if ((err = av_reallocp_array(&entries, cues->num_entries + 1,
sizeof(*entries))) < 0) {
cues->num_entries = 0;
return err;
}
entries = av_realloc(entries, (cues->num_entries + 1) * sizeof(mkv_cuepoint));
if (entries == NULL)
return AVERROR(ENOMEM);
entries[cues->num_entries ].pts = ts;
entries[cues->num_entries ].tracknum = stream + 1;