uint8_t *av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int size) { int ret; uint8_t *data; if ((unsigned)size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) return NULL; data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE); if (!data) return NULL; ret = av_packet_add_side_data(pkt, type, data, size); if (ret < 0) { av_freep(&data); return NULL; } return data; }