hevc: do not change the VPS if its contents are the same

This is the same as is done for SPS.
This commit is contained in:
Anton Khirnov 2015-03-29 15:20:30 +02:00
parent 7693ba0a0e
commit ce0bc09ee2

View File

@ -407,8 +407,14 @@ int ff_hevc_decode_nal_vps(HEVCContext *s)
}
get_bits1(gb); /* vps_extension_flag */
av_buffer_unref(&s->vps_list[vps_id]);
s->vps_list[vps_id] = vps_buf;
if (s->vps_list[vps_id] &&
!memcmp(s->vps_list[vps_id]->data, vps_buf->data, vps_buf->size)) {
av_buffer_unref(&vps_buf);
} else {
av_buffer_unref(&s->vps_list[vps_id]);
s->vps_list[vps_id] = vps_buf;
}
return 0;
err: