static int webvtt_write_packet(AVFormatContext *ctx, AVPacket *pkt)
{
AVIOContext *pb = ctx->pb;
- int id_size, settings_size;
+ size_t id_size, settings_size;
+ int id_size_int, settings_size_int;
uint8_t *id, *settings;
avio_printf(pb, "\n");
id = av_packet_get_side_data(pkt, AV_PKT_DATA_WEBVTT_IDENTIFIER,
&id_size);
- if (id && id_size > 0)
- avio_printf(pb, "%.*s\n", id_size, id);
+ if (id_size > INT_MAX)
+ return AVERROR(EINVAL);
+
+ id_size_int = id_size;
+ if (id && id_size_int > 0)
+ avio_printf(pb, "%.*s\n", id_size_int, id);
webvtt_write_time(pb, pkt->pts);
avio_printf(pb, " --> ");
settings = av_packet_get_side_data(pkt, AV_PKT_DATA_WEBVTT_SETTINGS,
&settings_size);
- if (settings && settings_size > 0)
- avio_printf(pb, " %.*s", settings_size, settings);
+ if (settings_size > INT_MAX)
+ return AVERROR(EINVAL);
+
+ settings_size_int = settings_size;
+ if (settings && settings_size_int > 0)
+ avio_printf(pb, " %.*s", settings_size_int, settings);
avio_printf(pb, "\n");