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avformat/utils: optimize ff_packet_list_free()

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Don't constantly overwrite the list's head pointer.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2018-03-26 15:02:36 -03:00
parent 3a4d74c1ff
commit 58ce4fdeae
1 changed files with 6 additions and 3 deletions
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9
libavformat/utils.c
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@ -1416,12 +1416,15 @@ FF_ENABLE_DEPRECATION_WARNINGS
void ff_packet_list_free(AVPacketList **pkt_buf, AVPacketList **pkt_buf_end)
{
while (*pkt_buf) {
AVPacketList *pktl = *pkt_buf;
*pkt_buf = pktl->next;
AVPacketList *tmp = *pkt_buf;
while (tmp) {
AVPacketList *pktl = tmp;
tmp = pktl->next;
av_packet_unref(&pktl->pkt);
av_freep(&pktl);
}
*pkt_buf = NULL;
*pkt_buf_end = NULL;
}